US3432898A - Process of stuffer-crimping lubricated synthetic fibers - Google Patents
Process of stuffer-crimping lubricated synthetic fibers Download PDFInfo
- Publication number
- US3432898A US3432898A US441341A US3432898DA US3432898A US 3432898 A US3432898 A US 3432898A US 441341 A US441341 A US 441341A US 3432898D A US3432898D A US 3432898DA US 3432898 A US3432898 A US 3432898A
- Authority
- US
- United States
- Prior art keywords
- fiber
- crimping
- fibers
- ester
- fatty acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title description 31
- 238000002788 crimping Methods 0.000 title description 26
- 229920002994 synthetic fiber Polymers 0.000 title description 8
- 239000012209 synthetic fiber Substances 0.000 title description 7
- 239000000835 fiber Substances 0.000 description 95
- -1 fatty acid ester Chemical class 0.000 description 38
- 150000002148 esters Chemical class 0.000 description 28
- 125000004432 carbon atom Chemical group C* 0.000 description 18
- 235000014113 dietary fatty acids Nutrition 0.000 description 18
- 229930195729 fatty acid Natural products 0.000 description 18
- 239000000194 fatty acid Substances 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 239000000314 lubricant Substances 0.000 description 13
- 125000000217 alkyl group Chemical group 0.000 description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
- 239000006185 dispersion Substances 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 9
- 238000000354 decomposition reaction Methods 0.000 description 8
- 208000003028 Stuttering Diseases 0.000 description 7
- 239000002270 dispersing agent Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 150000004671 saturated fatty acids Chemical class 0.000 description 7
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 6
- AMUTYVGRCVFCCD-UHFFFAOYSA-N 5,6-diaminopyridine-3-carboxylic acid Chemical compound NC1=CC(C(O)=O)=CN=C1N AMUTYVGRCVFCCD-UHFFFAOYSA-N 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 150000004665 fatty acids Chemical class 0.000 description 5
- NHUXFMNHQIITCP-UHFFFAOYSA-N 2-butoxyethyl octadecanoate Chemical group CCCCCCCCCCCCCCCCCC(=O)OCCOCCCC NHUXFMNHQIITCP-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 125000005907 alkyl ester group Chemical group 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229920000056 polyoxyethylene ether Polymers 0.000 description 4
- 229920001059 synthetic polymer Polymers 0.000 description 4
- 229920001169 thermoplastic Polymers 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 3
- 229920002302 Nylon 6,6 Polymers 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229960000541 cetyl alcohol Drugs 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 150000005846 sugar alcohols Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- SJIDAAGFCNIAJP-UHFFFAOYSA-N 6-methylheptyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCCCCCC(C)C SJIDAAGFCNIAJP-UHFFFAOYSA-N 0.000 description 2
- KUCCCVXLSQTKHH-UHFFFAOYSA-N 8-methylnonyl hexadecanoate Chemical compound CCCCCCCCCCCCCCCC(=O)OCCCCCCCC(C)C KUCCCVXLSQTKHH-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- 229920000305 Nylon 6,10 Polymers 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000007859 condensation product Substances 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 235000003441 saturated fatty acids Nutrition 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- NFAOATPOYUWEHM-UHFFFAOYSA-N 2-(6-methylheptyl)phenol Chemical group CC(C)CCCCCC1=CC=CC=C1O NFAOATPOYUWEHM-UHFFFAOYSA-N 0.000 description 1
- KWVPFECTOKLOBL-KTKRTIGZSA-N 2-[(z)-octadec-9-enoxy]ethanol Chemical compound CCCCCCCC\C=C/CCCCCCCCOCCO KWVPFECTOKLOBL-KTKRTIGZSA-N 0.000 description 1
- CYEJMVLDXAUOPN-UHFFFAOYSA-N 2-dodecylphenol Chemical group CCCCCCCCCCCCC1=CC=CC=C1O CYEJMVLDXAUOPN-UHFFFAOYSA-N 0.000 description 1
- IAIDZNVXRRXCHU-UHFFFAOYSA-N 3-ethyl-2-hexylphenol Chemical group CCCCCCC1=C(O)C=CC=C1CC IAIDZNVXRRXCHU-UHFFFAOYSA-N 0.000 description 1
- PCWGTDULNUVNBN-UHFFFAOYSA-N 4-methylpentan-1-ol Chemical compound CC(C)CCCO PCWGTDULNUVNBN-UHFFFAOYSA-N 0.000 description 1
- SLXKOJJOQWFEFD-UHFFFAOYSA-N 6-aminohexanoic acid Chemical compound NCCCCCC(O)=O SLXKOJJOQWFEFD-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- 101000756346 Homo sapiens RE1-silencing transcription factor Proteins 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920001007 Nylon 4 Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 102100022940 RE1-silencing transcription factor Human genes 0.000 description 1
- IYFATESGLOUGBX-YVNJGZBMSA-N Sorbitan monopalmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O IYFATESGLOUGBX-YVNJGZBMSA-N 0.000 description 1
- WPMWEFXCIYCJSA-UHFFFAOYSA-N Tetraethylene glycol monododecyl ether Chemical compound CCCCCCCCCCCCOCCOCCOCCOCCO WPMWEFXCIYCJSA-UHFFFAOYSA-N 0.000 description 1
- 229920004892 Triton X-102 Polymers 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 229960002684 aminocaproic acid Drugs 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- MWOBKFYERIDQSZ-UHFFFAOYSA-N benzene;sodium Chemical compound [Na].C1=CC=CC=C1 MWOBKFYERIDQSZ-UHFFFAOYSA-N 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- 150000003938 benzyl alcohols Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 1
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 1
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 description 1
- 229940043264 dodecyl sulfate Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- IPCSVZSSVZVIGE-UHFFFAOYSA-M hexadecanoate Chemical compound CCCCCCCCCCCCCCCC([O-])=O IPCSVZSSVZVIGE-UHFFFAOYSA-M 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000003010 ionic group Chemical group 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- WIBFFTLQMKKBLZ-SEYXRHQNSA-N n-butyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCCC WIBFFTLQMKKBLZ-SEYXRHQNSA-N 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical group CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 125000006353 oxyethylene group Chemical group 0.000 description 1
- IPCSVZSSVZVIGE-UHFFFAOYSA-N palmitic acid group Chemical group C(CCCCCCCCCCCCCCC)(=O)O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920001290 polyvinyl ester Polymers 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- JHJUUEHSAZXEEO-UHFFFAOYSA-M sodium;4-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=C(S([O-])(=O)=O)C=C1 JHJUUEHSAZXEEO-UHFFFAOYSA-M 0.000 description 1
- 239000001570 sorbitan monopalmitate Substances 0.000 description 1
- 235000011071 sorbitan monopalmitate Nutrition 0.000 description 1
- 229940031953 sorbitan monopalmitate Drugs 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000009988 textile finishing Methods 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical class OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
- ABDKAPXRBAPSQN-UHFFFAOYSA-N veratrole Chemical compound COC1=CC=CC=C1OC ABDKAPXRBAPSQN-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M7/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made of other substances with subsequent freeing of the treated goods from the treating medium, e.g. swelling, e.g. polyolefins
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2964—Artificial fiber or filament
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2971—Impregnation
Definitions
- the invention deals with the treatment of fibers specifically, the invention concerns lubricated fibers which have a coating of a fatty acid ester or ether which is stable against decomposition at elevated temperatures.
- the invention also provides a process for treating a fiber with such a fatty acid derivative.
- the treated fiber is ideally suited for crimping, particularly crimping by compressive methods such as by the stutter-crimping method.
- man-made fibers are generally impregnated with a textile finishing composition for imparting softness, lubricity, antistatic, and like properties to the fibers, or filaments, to facilitate processing of the fibers in subsequent operations as spinning, twisting, winding, reeling, warping, carding, drafting, weaving and crimping and other operations.
- a textile finishing composition for imparting softness, lubricity, antistatic, and like properties to the fibers, or filaments, to facilitate processing of the fibers in subsequent operations as spinning, twisting, winding, reeling, warping, carding, drafting, weaving and crimping and other operations.
- Such conventional finishing agents may be glycerine, lauryl alcohol, sorbitan monopalmitate, butyl oleate and others.
- the fibers are curled up, folded, compressed and crimped on themselves an innumerable number of times within the confines of a chamber under elevated temperature conditions while continuously under a pressure which moves the fibers, the fibers must be slideable with respect to other fibers with which they come into frictional relationship and also with respect to the inside walls of the metal stuifing-chamber. These are extremely severe conditions for which no exact counterpart is found in other processing or treatment of fibers.
- the fiber lubricant of the present invention largely overcomes these problems.
- the lubricant imparts to the fiber excellent lubricity with respect to other surfaces, such as other fibers, metal surfaces, glass, ceramics, synthetic materials or others.
- the fiber, coated or impregnated with the lubricant of the invention retains its lubricity at elevated temperatures, such as over 400 F.
- the fiber is ideally suited for crimping, particularly stutter-crimping.
- the fibers retain their slideability with respect to adjacent fibers and metal surfaces such as the walls of the stutter-box or chamber with which the fiber is in contact. These necessary properties are retained notwithstanding the extreme compactness of the fibers and the pressure prevailing in the confines of the chamber, as well as the prevailing elevated temperatures. These temperatures may range up to the melting point of the fiber, generally in the range of about 300 to about 400 or about 450 F., for a time sufficient to crimp the fiber, as for instance for about 2 to 10 minutes, generally for about
- the fiber is treated with a specific fatty acid ester.
- Esters useful in the practice of the invention include the esters of monohydric and polyhydric alcohols and saturated fatty acids having a total carbon atom content of about 22.
- the fatty acid may have a carbon atom content of 8 to 24; particularly 12 to 22 carbon atom acids are most suitable.
- Typical are the following: caprylic, capric, lauric, myristic, palmitic, stearic, arachidic, behenic and the like.
- esters are those of monohydric and polyhydric alcohols typified by the following: mono-, di-, and tri-substituted carbinols, such as ethyl, isopropyl, n-butyl, sec-butyl, tert-butyl, tert-amyl, n-octyl, iso-octyl, Z-ethylhexyl, octadecyl, lauryl, cyclohexyl, and benzyl alcohols; polyhydric alcohols such as ethylene glycol, 1,2-propylene glycol, Z-ethylhexanediol- 1,3, butanediol-LZ, dodecanediol-1,12; diand tri-ethylene glycols; glycerol; pentaerythritol; and the isomers and homologues of the above.
- esters are those of saturated fatty acids of 16 to 2'2 carbon atoms and alkanols, especially highly branched mixtures of isomeric alkanols having at least 6 carbon atoms, such as isohexyl-, isooctyl-, isodecyl, 4,5-dimethy1- l-hexanol, S-methyl-l-heptanol, 4-methyl-1-pentanol, and the like, such as are obtained from the 0x0, the synthol, or oxyl processes.
- a particular useful lubricant is isooctyl .palmitate. Another is butoxy ethyl stearate.
- esters are useful too, both the esters of mixtures of the alcohols and/ or of the acids and of both. It is desirable that the esters be water-soluble in the bath in which the fiber is treated or at least dispersible therein.
- the fiber is impregnated with the lubricant by passing it through a bath comprising a volatile carrier 'for the fatty acid ester.
- the volatile carrier is water.
- the amount of fatty acid ester lubricant in the bath varies in accordance with the extent of lubricity required of the fiber, the type of fiber, the nature of the material from which the fiber is made, the length of treatment and other factors. Satisfactory results are obtainable with an amount of 2 to 10% preferably 4 to 8%. by weight of ester in the bath. Generally, the ester is dissolved in the water, or it may be dispersed therein.
- the fiber is passed through the bath in such a manner as to coat, or impregnate, the fiber with the ester.
- the pick-up of liquid by the fiber may range from 10 to 30%.
- the wet treated fiber upon removal from the bath may have an amount of 0.4% to 2.0%, more often 0.8% to 1.6% by weight of ester retained on the fiber.
- the application of the ester to the fiber may be promoted by heating the treating bath at a temperature in the range of about 120 F. to the boiling temperature of the bath, generally 120 to 140 F. being quite satisfactory.
- the impregnation of the fiber with the ester can be promoted by using an inert wetting or surface active dispersing agent.
- the dispersing agent which is suitable for use in the process includes those of the non-ionic, anionic and cationic groups.
- the preferred dispersing agents are of the non-ionic type, especially the condensation products of ethylene oxide with a hydrophobic organic material such as a long chain aliphatic alcohol, acid, ester, ether or an alkyl phenol.
- These products are characterized by containing as the hydrophilic portion of the molecule a plurality of oxyethylene moieties, as in the formula given below, RO(CH CH O) CH OH wherein R is an alkyl group having from 12 to 22 carbon atoms or an alkyl phenol residue wherein the alkyl group contains from 6 to 13 carbon atoms inclusive and wherein x is at least 4 especially between about 6 and about 40.
- the ethylene oxide residues may vary considerably as from to 90 mole percent, especially to 20 mole percent.
- Triton X-l00 wherein R is an alkyl phenol residue, wherein the alkyl group is isooctyl and wherein x is 7 to 9
- Triton X-102 wherein R is an isooctyl phenol residue and x is 11
- Tergitol NPX wherein R is ethylhexyl phenol residue and x is 8 to 0
- Neutronic 600 wherein R is nonyl phenol residue and x is 9
- Emulphor ELN wherein R is dodecyl phenol residue and x is 19.
- condensation products of fatty acids and polyethylene glycols are also useful.
- R is a long chain alkyl group having from 12 to 18 carbon atoms inclusive and x is an integer from 8 to 40 inclusive; polyoxyethylene derivatives of hexitol anhydride of sorbitol fatty acid esters such as Tween 80; polyoxyethylene ethers RO(CH CH O) CH CH OH wherein R is an alkyl group having from 6 to 18 carbon atoms and x is an integer from 4 to 40 inclusive.
- a commercial product which is an example of this group is Brij 30 in which R is lauryl and x is believed to be 10.
- anionics x surface active agents such as highly sulfated fatty acid esters, e.g.
- lauryl sulfate Tetranols
- alkyl aryl sulfoantes e.g. dodecylbenzene sodium sulfonate, keryl benzene sodium sulfonate (Nacconol NRSF) and cationics such as quaternary ammonium compounds (Sapamine KW, Ethoquad 18/12).
- the amount of dispersing agent may vary broadly as from 0.01 to 50 percent. Generally, the dispersing agent is inert with respect to the ester and volatile during subsequent treating steps.
- the treating bath may also contain other agents useful for the treatment of the fiber as antistatic material, plasticizer and the like.
- the excess volatile liquid is removed by any suitable method, as by squeezing out the excess by passing the fiber through nip rolls. It has been found very advantageous that there be retained by the treated fiber from 0.25% to 3% and more preferably from 0.75% to 2% by weight of ester.
- the fiber is dried. Drying may be accomplished by heating at a temperature as in the range of 100 to about 200 F. for a time sufficient to dry the fiber. The drying step may be performed as a separate step or together with and apart from the crimping stage from the fiber. The impregnation from the fiber is performed at any suitable time during its processing.
- the ester may be included in the quenching bath when the fibers are subjected to such a step.
- This is a particularly convenient stage at which to treat a glass fiber.
- the fibers may be treated by passing through the bath just prior to crimping, as may be done with polyamides, polyacrylics, polyolefins, or polyesters, for example, and copolymers thereof.
- Suitable crimping techniques whereby the fiber may be crimped are shown in United States Patents 3,111,740, 2,972,798 (and others disclosed therein), 3,027,619, 3,037,260, and 3,090,096.
- the impregnation of the fiber is preferably carried out by passing the fiber through a bath.
- the fibers may be treated with the solution or dispersion of the fatty acid ester by wetting the fiber by another suitable method such as by passing the fiber under a shower of a liquid finishing composition comprising the fatty acid ester.
- the fiber may be passed across a wick which picks up the lubricant from a reservoir by capillary action.
- the fiber need not be in a continuous form. For example, multifilament may be cut into staple fibers, and a blanket of the fibers may be carried on a fiat conveyor whereon the fibers may be sprayed with the liquid finishing composition comprising the ester of the invention.
- the process of this invention is applicable to a wide variety of man-made fibers, particularly thermoplastic fibers made of synthetic polymers.
- fiberforrning synthetic polymers which may be used are the following polyolefins such as polyethylene, polypropylene; polyurethanes, polyvinyls such as polyvinylesters; polyacrylics, as acrylonitrile, and copolymers (e.g. those disclosed in United States Patent 2,960,752).
- Linear polyesters of aromatic dicarboxylic acids and dihydric compounds such as polyethylene terephthalate; linear polycarbonamides such as, for example, polyhexamethylene adipamide, polyhexamethylene sebacamide, polymeric monoamino-monocarboxylie acids, such as polymeric 6- amino caproic acid; linear polycarbonates and other fiberforming thermoplastic polymers. Mixtures of such fiberforming synthetic polymers also can be used.
- the process of this invention is applicable particularly for the treatment of yarn generically referred to as nylon, including nylon 66, nylon 4, nylon 6, nylon 610, nylon 7, nylon 11, and their fiber-forming copolymers thereof, e.g. 6/66, 6/610/ 66, 66/610, etc.
- the lubricant of the invention is also useful to treat glass fibers.
- the fibers may be crimped in accordance with any of the known methods for crimping textile strands and in particular because of the advantages discussed above, with the stuffer-crimping technique.
- the treated fiber may be a dyed or a virgin fiber.
- a textile strand is treated by heating the strand to soften the thermoplastic component, forcing the heated strand into and through a region from which exit of the strand is impeded sufiiciently to impart a crimped configuration thereto, and cooling the strand as soon as it assumes the crimped configuration.
- an apparatus comprising means for forwarding a strand through a heating zone and into a cooling zone contiguous with the heating zone, means for heating the strand being forwarded through the heating zone, means for cooling the strand throughout the cooling zone, and a stuifer-crimper having a stufiing chamber with its entrance juxtaposed to the boundary between the heating and cooling zones to receive the strand from the heating zone.
- the fiber Prior to stuffer-crimping the fiber may be heated to within the range of ab0ut 350 F. for a time sufi'icient to soften the fiber.
- Example 1 A tow of nylon filaments is forwarded through a suitable tank containing an aqueous dispersion of 2% of isooctyl palmitate. The bath is heated at a temperature of 140 F. The tow is passed through and out of the bath onto a pair of counter-rotating nip rolls which squeeze out excess water. The resulting fiber is then heated at 300 F. till dry.
- the uncrimped strand is fed through the bore of an infeed guide and injected into the nip of counter-rotating rolls, which stuff the strand into the entrance of a jacketed stufling chamber as disclosed in United States Patent 3,111,740.
- the strand is heated by contact with the rolls and crimped by the rapid columnar collapse of the strand accumulating below the back-pressure gear, which penetrates the chamber from the back.
- the strand accumulation proceeds upward into the chamber proper, which is cooled by circulation of cooling fluid inside the jacket.
- Water ordinarily is suitable as the cooling fluid and is injected through inlet tubes near the base of the jacket and against deflecting fins which assure circulation of the water to the chamber wall in the vicinity of the entrance.
- the water circulates about the chamber within the jacket in contact with the helical circulating fins and emerges through the outlet tubes near the top of the jacket.
- the heated strand begins to cool immediately upon its entrance into the chamber and continues to do so as it passes upward in the chamber, finally approximating the temperature of the water in the jacket.
- the strand so processed remains lubricated throughout the entire operation.
- Example 2 The procedure of Example 1 is repeated, adding to the bath polyoxyethylene ether of cetylalcohol to give a 5% concentration. A fiber of equally satisfactory properties is obtained when crimped by identical stutter-crimping, such as disclosed in United States Patent 3,111,740. In another modification, the lubricated fiber is directed directly from the treating bath to the stuffing-crimping chamber.
- Each fiber is crimped by passing through a stuifercrimper.
- the temperature in the stufler box is above 320 F.
- a highly satisfactory crimped yarn is obtained.
- highly lubricated yarns and fibers with a coating highly ther mally stable are obtained.
- One skilled in the art may without ditficulty vary the conditions to perform under conditions most suitable to achieving his particular purposes.
- a process which comprises impregnating a synthetic fiber with an aqueous dispersion of an alkyl ester of a saturated fatty acid of 16 to 22 carbon atoms, the ester having an alkyl group of 6 to 12 carbon atoms, removing excess water from the fiber, and stuffer-crimping the fiber coated with the fatty acid ester in a stuifercrimper chamber without decomposition of the coating.
- a process which comprises impregnating a synthetic fiber with an aqueous dispersion of an ether of a saturated fatty acid of 16 to 22 carbon atoms, the ether having an alkoxy group of 4 to 8 carbon atoms, removing excess water from the fiber and stuifer-crimping the fiber coated with the fatty acid ether in a stuifer-crimper chamber without decomposition of the coating.
- a process which comprises impregnating a synthetic fiber with an aqueous dispersion of isooctyl palmitate, removing excess water from the fiber and stufier-crimping the fiber coated with the fatty acid ester in a stuifercrimper chamber without decomposition of the coating.
- a process which comprises impregnating a synthetic fiber with an aqueous dispersion of butoxy ethyl stearate, removing excess water from the fiber and stutfercrimping the fiber coated with the fatty acid ester in a stuffer-crimper chamber without decomposition of the coating.
- a process which comprises impregnating a synthetic fi'ber with an aqueou dispersion of an alkyl ester of a saturated fatty acid of 16 to 22 carbon atoms, the ester having an alkyl group of 6 to 12 carbon atoms, and a dispersing agent, removing excess water from the fiber and stuifer-crimping the fiber coated with the fatty acid ester in a stuifer-crimper chamber without decomposition of the coating.
- a process which comprises impregnating a synthetic fiber with an aqueous dispersion of an alkyl ester of a saturated fatty acid of 16 to 22 carbon atoms, the ester having an alkyl group of 6 to 12 carbon atoms, removing excess water from the fiber and stuifer-crimping the fiber coated with the fatty acid ester in a stuifer-crimper chamber at a temperature in the range of 300 to about 400 F. without decomposition of the coating.
- a process which comprises impregnating a synthetic fiber with an aqueous dispersion of an alkyl ester of a saturated fatty acid of 16 to 22 carbon atoms, the ester having an alkyl group of 6 to 12 carbon atoms, drying the impregnated fiber, and stutter-crimping the dried, impregnated fiber at a temperature below the decomposition temperature of the ester.
Description
ilnite 3,432,898 PRUCEEYS OF STUFFER-CRIMPING LUBRICATED SYNTHETIC FEBERS Robert K. Stanley, Media, and Hillary Robinette, In,
Philadelphia, Pa, assignors to Techniservice Corporation, Kennett Square, Pa. No Drawing. Filed Mar. 19, 1965', Ser. No. 441,341 US. Cl. 2%72 13 Claims Int. Cl. Dil ih 13/00 ABSTRACT F THE DISCLOSURE The invention deals with the treatment of fibers specifically, the invention concerns lubricated fibers which have a coating of a fatty acid ester or ether which is stable against decomposition at elevated temperatures. The invention also provides a process for treating a fiber with such a fatty acid derivative. The treated fiber is ideally suited for crimping, particularly crimping by compressive methods such as by the stutter-crimping method.
In accordance with known methods, man-made fibers are generally impregnated with a textile finishing composition for imparting softness, lubricity, antistatic, and like properties to the fibers, or filaments, to facilitate processing of the fibers in subsequent operations as spinning, twisting, winding, reeling, warping, carding, drafting, weaving and crimping and other operations. Such conventional finishing agents may be glycerine, lauryl alcohol, sorbitan monopalmitate, butyl oleate and others.
Many such processing operations require that the fiber be exposed to heat. Under elevated temperatures the finish may be degraded, decomposed, polymerized, or in one way or the other removed so that it becomes ineffective to give the fiber the required properties, in particular lubricity, required in further operations. In processing involving crimping, especially compressive or stuttercrimping of fibers, this problem has become especially acute. In stutter-crimping, extreme conditions of friction occur. Since the fibers are curled up, folded, compressed and crimped on themselves an innumerable number of times within the confines of a chamber under elevated temperature conditions while continuously under a pressure which moves the fibers, the fibers must be slideable with respect to other fibers with which they come into frictional relationship and also with respect to the inside walls of the metal stuifing-chamber. These are extremely severe conditions for which no exact counterpart is found in other processing or treatment of fibers.
In the course of the crimping operation, conventional lubricants, or finishes on the fibers degrade imperceptibly during their treatment, often forming what appears to be a sticky, sludge-like invisible film, so that the operations become uneven, are slowed and may break down, as slideability of the fibers is reduced and excess friction develops. Moreover, later during drying of the fibers further problems may arise from the degradation of the lubricant. The shortcomings of conventional finishes or lubricants therefore cause serious problems in their processing.
The fiber lubricant of the present invention largely overcomes these problems. The lubricant imparts to the fiber excellent lubricity with respect to other surfaces, such as other fibers, metal surfaces, glass, ceramics, synthetic materials or others. The fiber, coated or impregnated with the lubricant of the invention, retains its lubricity at elevated temperatures, such as over 400 F. The fiber is ideally suited for crimping, particularly stutter-crimping. The fibers retain their slideability with respect to adjacent fibers and metal surfaces such as the walls of the stutter-box or chamber with which the fiber is in contact. These necessary properties are retained notwithstanding the extreme compactness of the fibers and the pressure prevailing in the confines of the chamber, as well as the prevailing elevated temperatures. These temperatures may range up to the melting point of the fiber, generally in the range of about 300 to about 400 or about 450 F., for a time sufficient to crimp the fiber, as for instance for about 2 to 10 minutes, generally for about 3 to 5 minutes.
To impart these properties to the fibers according to one embodiment of this invention, the fiber is treated with a specific fatty acid ester. Esters useful in the practice of the invention include the esters of monohydric and polyhydric alcohols and saturated fatty acids having a total carbon atom content of about 22. The fatty acid may have a carbon atom content of 8 to 24; particularly 12 to 22 carbon atom acids are most suitable. Typical are the following: caprylic, capric, lauric, myristic, palmitic, stearic, arachidic, behenic and the like. The esters are those of monohydric and polyhydric alcohols typified by the following: mono-, di-, and tri-substituted carbinols, such as ethyl, isopropyl, n-butyl, sec-butyl, tert-butyl, tert-amyl, n-octyl, iso-octyl, Z-ethylhexyl, octadecyl, lauryl, cyclohexyl, and benzyl alcohols; polyhydric alcohols such as ethylene glycol, 1,2-propylene glycol, Z-ethylhexanediol- 1,3, butanediol-LZ, dodecanediol-1,12; diand tri-ethylene glycols; glycerol; pentaerythritol; and the isomers and homologues of the above. A particular useful group of esters are those of saturated fatty acids of 16 to 2'2 carbon atoms and alkanols, especially highly branched mixtures of isomeric alkanols having at least 6 carbon atoms, such as isohexyl-, isooctyl-, isodecyl, 4,5-dimethy1- l-hexanol, S-methyl-l-heptanol, 4-methyl-1-pentanol, and the like, such as are obtained from the 0x0, the synthol, or oxyl processes.
Also useful likewise, according to another embodiment of the invention, are the corresponding ethers of these fatty acids in which the alkoxy group has the same definition as the alkyl group where the invention is discussed hereinafter with reference to esters it will be understood that the same discussion would apply to the corresponding ethers without necessity for repetition to that effect.
A particular useful lubricant is isooctyl .palmitate. Another is butoxy ethyl stearate.
Mixtures of esters are useful too, both the esters of mixtures of the alcohols and/ or of the acids and of both. It is desirable that the esters be water-soluble in the bath in which the fiber is treated or at least dispersible therein.
In accordance with the first embodiment of the invention, the fiber is impregnated with the lubricant by passing it through a bath comprising a volatile carrier 'for the fatty acid ester. Preferably, the volatile carrier is water. The amount of fatty acid ester lubricant in the bath varies in accordance with the extent of lubricity required of the fiber, the type of fiber, the nature of the material from which the fiber is made, the length of treatment and other factors. Satisfactory results are obtainable with an amount of 2 to 10% preferably 4 to 8%. by weight of ester in the bath. Generally, the ester is dissolved in the water, or it may be dispersed therein. The fiber is passed through the bath in such a manner as to coat, or impregnate, the fiber with the ester. The pick-up of liquid by the fiber may range from 10 to 30%. Generally, the wet treated fiber upon removal from the bath may have an amount of 0.4% to 2.0%, more often 0.8% to 1.6% by weight of ester retained on the fiber. The application of the ester to the fiber may be promoted by heating the treating bath at a temperature in the range of about 120 F. to the boiling temperature of the bath, generally 120 to 140 F. being quite satisfactory.
The impregnation of the fiber with the ester can be promoted by using an inert wetting or surface active dispersing agent. The dispersing agent which is suitable for use in the process includes those of the non-ionic, anionic and cationic groups. The preferred dispersing agents are of the non-ionic type, especially the condensation products of ethylene oxide with a hydrophobic organic material such as a long chain aliphatic alcohol, acid, ester, ether or an alkyl phenol. These products are characterized by containing as the hydrophilic portion of the molecule a plurality of oxyethylene moieties, as in the formula given below, RO(CH CH O) CH OH wherein R is an alkyl group having from 12 to 22 carbon atoms or an alkyl phenol residue wherein the alkyl group contains from 6 to 13 carbon atoms inclusive and wherein x is at least 4 especially between about 6 and about 40. The ethylene oxide residues may vary considerably as from to 90 mole percent, especially to 20 mole percent. Commercial examples of products in this group include Triton X-l00 wherein R is an alkyl phenol residue, wherein the alkyl group is isooctyl and wherein x is 7 to 9; Triton X-102 wherein R is an isooctyl phenol residue and x is 11; Tergitol NPX wherein R is ethylhexyl phenol residue and x is 8 to 0; Neutronic 600 wherein R is nonyl phenol residue and x is 9; Emulphor ELN wherein R is dodecyl phenol residue and x is 19. Also useful are condensation products of fatty acids and polyethylene glycols,
wherein R is a long chain alkyl group having from 12 to 18 carbon atoms inclusive and x is an integer from 8 to 40 inclusive; polyoxyethylene derivatives of hexitol anhydride of sorbitol fatty acid esters such as Tween 80; polyoxyethylene ethers RO(CH CH O) CH CH OH wherein R is an alkyl group having from 6 to 18 carbon atoms and x is an integer from 4 to 40 inclusive. A commercial product which is an example of this group is Brij 30 in which R is lauryl and x is believed to be 10. There may also be used anionics x surface active agents such as highly sulfated fatty acid esters, e.g. lauryl sulfate (Tetranols) and alkyl aryl sulfoantes, e.g. dodecylbenzene sodium sulfonate, keryl benzene sodium sulfonate (Nacconol NRSF) and cationics such as quaternary ammonium compounds (Sapamine KW, Ethoquad 18/12). The amount of dispersing agent may vary broadly as from 0.01 to 50 percent. Generally, the dispersing agent is inert with respect to the ester and volatile during subsequent treating steps. The treating bath may also contain other agents useful for the treatment of the fiber as antistatic material, plasticizer and the like.
After impregnation of the fiber is accomplished, the excess volatile liquid is removed by any suitable method, as by squeezing out the excess by passing the fiber through nip rolls. It has been found very advantageous that there be retained by the treated fiber from 0.25% to 3% and more preferably from 0.75% to 2% by weight of ester. After removal of excess water the fiber is dried. Drying may be accomplished by heating at a temperature as in the range of 100 to about 200 F. for a time sufficient to dry the fiber. The drying step may be performed as a separate step or together with and apart from the crimping stage from the fiber. The impregnation from the fiber is performed at any suitable time during its processing. For instance, the ester may be included in the quenching bath when the fibers are subjected to such a step. This is a particularly convenient stage at which to treat a glass fiber. Or, for instance, the fibers may be treated by passing through the bath just prior to crimping, as may be done with polyamides, polyacrylics, polyolefins, or polyesters, for example, and copolymers thereof.
Suitable crimping techniques whereby the fiber may be crimped are shown in United States Patents 3,111,740, 2,972,798 (and others disclosed therein), 3,027,619, 3,037,260, and 3,090,096.
The impregnation of the fiber is preferably carried out by passing the fiber through a bath. If desired, however, the fibers may be treated with the solution or dispersion of the fatty acid ester by wetting the fiber by another suitable method such as by passing the fiber under a shower of a liquid finishing composition comprising the fatty acid ester. Or, the fiber may be passed across a wick which picks up the lubricant from a reservoir by capillary action. Moreover, the fiber need not be in a continuous form. For example, multifilament may be cut into staple fibers, and a blanket of the fibers may be carried on a fiat conveyor whereon the fibers may be sprayed with the liquid finishing composition comprising the ester of the invention.
The process of this invention is applicable to a wide variety of man-made fibers, particularly thermoplastic fibers made of synthetic polymers. As examples of fiberforrning synthetic polymers which may be used are the following polyolefins such as polyethylene, polypropylene; polyurethanes, polyvinyls such as polyvinylesters; polyacrylics, as acrylonitrile, and copolymers (e.g. those disclosed in United States Patent 2,960,752). Linear polyesters of aromatic dicarboxylic acids and dihydric compounds, such as polyethylene terephthalate; linear polycarbonamides such as, for example, polyhexamethylene adipamide, polyhexamethylene sebacamide, polymeric monoamino-monocarboxylie acids, such as polymeric 6- amino caproic acid; linear polycarbonates and other fiberforming thermoplastic polymers. Mixtures of such fiberforming synthetic polymers also can be used. The process of this invention is applicable particularly for the treatment of yarn generically referred to as nylon, including nylon 66, nylon 4, nylon 6, nylon 610, nylon 7, nylon 11, and their fiber-forming copolymers thereof, e.g. 6/66, 6/610/ 66, 66/610, etc. The lubricant of the invention is also useful to treat glass fibers.
In accordance with this invention there are produced potentially or latently crimpable fibers, filaments, or yarn, which can be readily changed into bulked, highly crimped stretchable product, particularly continuous filament yarn. The fibers may be crimped in accordance with any of the known methods for crimping textile strands and in particular because of the advantages discussed above, with the stuffer-crimping technique. The treated fiber may be a dyed or a virgin fiber. In accordance with the stuifercrimping technique of United States Patent 3,111,740 (mentioned above) for example, a textile strand is treated by heating the strand to soften the thermoplastic component, forcing the heated strand into and through a region from which exit of the strand is impeded sufiiciently to impart a crimped configuration thereto, and cooling the strand as soon as it assumes the crimped configuration. This is accomplished in an apparatus comprising means for forwarding a strand through a heating zone and into a cooling zone contiguous with the heating zone, means for heating the strand being forwarded through the heating zone, means for cooling the strand throughout the cooling zone, and a stuifer-crimper having a stufiing chamber with its entrance juxtaposed to the boundary between the heating and cooling zones to receive the strand from the heating zone. Prior to stuffer-crimping the fiber may be heated to within the range of ab0ut 350 F. for a time sufi'icient to soften the fiber.
The following examples in which parts and percent ages are given by weight, unless otherwise indicated, illustrate the preferred method of carrying out the treatment in accordance with the invention. The invention is not to be limited by the following examples.
Example 1 A tow of nylon filaments is forwarded through a suitable tank containing an aqueous dispersion of 2% of isooctyl palmitate. The bath is heated at a temperature of 140 F. The tow is passed through and out of the bath onto a pair of counter-rotating nip rolls which squeeze out excess water. The resulting fiber is then heated at 300 F. till dry.
The uncrimped strand is fed through the bore of an infeed guide and injected into the nip of counter-rotating rolls, which stuff the strand into the entrance of a jacketed stufling chamber as disclosed in United States Patent 3,111,740. The strand is heated by contact with the rolls and crimped by the rapid columnar collapse of the strand accumulating below the back-pressure gear, which penetrates the chamber from the back. Upon sufiicient accumulation of the strand to rotate the back-pressure gear against the frictional retardation imparted to it by slippage of the attached pulley against the belt in contact with it, the strand accumulation proceeds upward into the chamber proper, which is cooled by circulation of cooling fluid inside the jacket. Water ordinarily is suitable as the cooling fluid and is injected through inlet tubes near the base of the jacket and against deflecting fins which assure circulation of the water to the chamber wall in the vicinity of the entrance. The water circulates about the chamber within the jacket in contact with the helical circulating fins and emerges through the outlet tubes near the top of the jacket. The heated strand begins to cool immediately upon its entrance into the chamber and continues to do so as it passes upward in the chamber, finally approximating the temperature of the water in the jacket. The strand so processed remains lubricated throughout the entire operation.
Example 2 The procedure of Example 1 is repeated, adding to the bath polyoxyethylene ether of cetylalcohol to give a 5% concentration. A fiber of equally satisfactory properties is obtained when crimped by identical stutter-crimping, such as disclosed in United States Patent 3,111,740. In another modification, the lubricated fiber is directed directly from the treating bath to the stuffing-crimping chamber.
Examples 39 The procedure of example is repeated with the following modifications:
(3) Replacing the isooctyl palmitate by 3% of butoxy ethyl stearate.
(4) Replacing the isooctyl palmitate by 3.5% of isodecyl palmitate.
(5) Replacing the isooctyl palmitate by 4% isooctyl stearate.
(6) Using with the lubricant, a polyoxyethylene alkyl phenol.
(7) Replacing the polyhexamethylene adipamide with a polyethylene terephthalate fiber.
(8) Using 1.8% glycerol tri-stearate in a 1% dispersion of a polyoxyethylene ether of cetyl alcohol.
(9) Feeding the fiber directly from the stutter-crimping apparatus.
Each fiber of the above examples, when exposed to a temperature of 400 F. for five minutes, retains its coating and remains satisfactorily lubricated.
Each fiber is crimped by passing through a stuifercrimper. The temperature in the stufler box is above 320 F. A highly satisfactory crimped yarn is obtained. By substitution of other lubricants of the invention, highly lubricated yarns and fibers with a coating highly ther mally stable are obtained. One skilled in the art may without ditficulty vary the conditions to perform under conditions most suitable to achieving his particular purposes.
We claim:
1. A process which comprises impregnating a synthetic fiber with an aqueous dispersion of an alkyl ester of a saturated fatty acid of 16 to 22 carbon atoms, the ester having an alkyl group of 6 to 12 carbon atoms, removing excess water from the fiber, and stuffer-crimping the fiber coated with the fatty acid ester in a stuifercrimper chamber without decomposition of the coating.
2. The process of claim 1 in which the alkyl group of the ester is branched.
3. A process which comprises impregnating a synthetic fiber with an aqueous dispersion of an ether of a saturated fatty acid of 16 to 22 carbon atoms, the ether having an alkoxy group of 4 to 8 carbon atoms, removing excess water from the fiber and stuifer-crimping the fiber coated with the fatty acid ether in a stuifer-crimper chamber without decomposition of the coating.
4. A process which comprises impregnating a synthetic fiber with an aqueous dispersion of isooctyl palmitate, removing excess water from the fiber and stufier-crimping the fiber coated with the fatty acid ester in a stuifercrimper chamber without decomposition of the coating.
5. A process which comprises impregnating a synthetic fiber with an aqueous dispersion of butoxy ethyl stearate, removing excess water from the fiber and stutfercrimping the fiber coated with the fatty acid ester in a stuffer-crimper chamber without decomposition of the coating.
6. A process which comprises impregnating a synthetic fi'ber with an aqueou dispersion of an alkyl ester of a saturated fatty acid of 16 to 22 carbon atoms, the ester having an alkyl group of 6 to 12 carbon atoms, and a dispersing agent, removing excess water from the fiber and stuifer-crimping the fiber coated with the fatty acid ester in a stuifer-crimper chamber without decomposition of the coating.
7. The process of claim 6 in which the dispersing agent is the polyoxyethylene ether of cetyl alcohol.
8. A process which comprises impregnating a synthetic fiber with an aqueous dispersion of an alkyl ester of a saturated fatty acid of 16 to 22 carbon atoms, the ester having an alkyl group of 6 to 12 carbon atoms, removing excess water from the fiber and stuifer-crimping the fiber coated with the fatty acid ester in a stuifer-crimper chamber at a temperature in the range of 300 to about 400 F. without decomposition of the coating.
9. A process which comprises impregnating a synthetic fiber with an aqueous dispersion of an alkyl ester of a saturated fatty acid of 16 to 22 carbon atoms, the ester having an alkyl group of 6 to 12 carbon atoms, drying the impregnated fiber, and stutter-crimping the dried, impregnated fiber at a temperature below the decomposition temperature of the ester.
10. The process of claim 9 wherein the fiber is a thermoplastic synthetic polymer.
11. The process of claim 9 wherein the ester is butoxy ethyl stearate.
12. The process of claim 9 wherein the ester is isooctyl stearate.
13. The process of claim 9 wherein the ester is isodecyl palmitate.
References Cited UNITED STATES PATENTS 2,069,303 2/ 1937 Dreyfus et al.
2,282,568 5/ 1942 Finzel.
2,960,752 11/ 1960 Sonnino 28-76 3,235,442 2/1966 Stump 16l173 2,207,696 7/1940 Robinson et al. 117138.8 X 2,406,542 8/1946 Howorth et al. 117-1395 2,436,978 3/ 1948 Standley et al. 117-1395 X 3,193,407 7/1965 Keller et al. 117-138.8
WILLIAM D. MARTIN, Primary Examiner.
T. G. DAVIS, Assistant Examiner.
US. Cl. X.R.
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Application Number | Priority Date | Filing Date | Title |
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US44134165A | 1965-03-19 | 1965-03-19 |
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US441341A Expired - Lifetime US3432898A (en) | 1965-03-19 | 1965-03-19 | Process of stuffer-crimping lubricated synthetic fibers |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3966865A (en) * | 1973-04-21 | 1976-06-29 | Kanebo, Ltd. | Method for producing fibril fibrous structures |
US4043344A (en) * | 1976-09-20 | 1977-08-23 | American Cyanamid Company | Non-absorbable surgical sutures coated with polyoxyethylene-polyoxypropylene copolymer lubricant |
US4047533A (en) * | 1976-09-20 | 1977-09-13 | American Cyanamid Company | Absorbable surgical sutures coated with polyoxyethylene-polyoxypropylene copolymer lubricant |
US4049766A (en) * | 1974-12-09 | 1977-09-20 | Akzona Incorporated | Process for improving crystallinity in nylon 6 |
US4080301A (en) * | 1975-06-27 | 1978-03-21 | Hoechst Aktiengesellschaft | Conditioning agents for the texturizing of polyester fibers |
DE2741765A1 (en) * | 1976-09-20 | 1978-03-30 | American Cyanamid Co | SURGICAL SEWING MATERIAL AND THEIR USE |
US4135879A (en) * | 1974-03-14 | 1979-01-23 | Chemische Fabrik Kreussler & Co., Gmbh | Processes for the treatment of textiles and finishing agents for use therein |
US4350001A (en) * | 1975-11-18 | 1982-09-21 | Tex Innovation Ab | Method for treating insulating fiber |
US5677058A (en) * | 1990-01-18 | 1997-10-14 | Eastman Chemical Company | Lubricant impregnated fibers and processes for preparation thereof |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2069303A (en) * | 1931-11-07 | 1937-02-02 | Celanese Corp | Process of treating textile materials and product thereof |
US2207696A (en) * | 1937-07-14 | 1940-07-09 | Eastman Kodak Co | Method of fugitively tinting and lubricating yarns |
US2282568A (en) * | 1938-10-05 | 1942-05-12 | Du Pont | Cellulosic structure and method for preparing same |
US2406542A (en) * | 1944-11-07 | 1946-08-27 | Celanese Corp | Treatment of staple fiber |
US2436978A (en) * | 1944-07-26 | 1948-03-02 | Ind Rayon Corp | Reinforcing cord and process of manufacture |
US2960752A (en) * | 1955-11-04 | 1960-11-22 | American Cyanamid Co | Method for producing a crimped tow |
US3193407A (en) * | 1962-04-19 | 1965-07-06 | Fmc Corp | Finished polyolefin fibers and method of preparation |
US3235442A (en) * | 1962-07-30 | 1966-02-15 | Du Pont | Crimped tow of polyester filaments |
-
1965
- 1965-03-19 US US441341A patent/US3432898A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2069303A (en) * | 1931-11-07 | 1937-02-02 | Celanese Corp | Process of treating textile materials and product thereof |
US2207696A (en) * | 1937-07-14 | 1940-07-09 | Eastman Kodak Co | Method of fugitively tinting and lubricating yarns |
US2282568A (en) * | 1938-10-05 | 1942-05-12 | Du Pont | Cellulosic structure and method for preparing same |
US2436978A (en) * | 1944-07-26 | 1948-03-02 | Ind Rayon Corp | Reinforcing cord and process of manufacture |
US2406542A (en) * | 1944-11-07 | 1946-08-27 | Celanese Corp | Treatment of staple fiber |
US2960752A (en) * | 1955-11-04 | 1960-11-22 | American Cyanamid Co | Method for producing a crimped tow |
US3193407A (en) * | 1962-04-19 | 1965-07-06 | Fmc Corp | Finished polyolefin fibers and method of preparation |
US3235442A (en) * | 1962-07-30 | 1966-02-15 | Du Pont | Crimped tow of polyester filaments |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3966865A (en) * | 1973-04-21 | 1976-06-29 | Kanebo, Ltd. | Method for producing fibril fibrous structures |
US4135879A (en) * | 1974-03-14 | 1979-01-23 | Chemische Fabrik Kreussler & Co., Gmbh | Processes for the treatment of textiles and finishing agents for use therein |
US4049766A (en) * | 1974-12-09 | 1977-09-20 | Akzona Incorporated | Process for improving crystallinity in nylon 6 |
US4080301A (en) * | 1975-06-27 | 1978-03-21 | Hoechst Aktiengesellschaft | Conditioning agents for the texturizing of polyester fibers |
US4350001A (en) * | 1975-11-18 | 1982-09-21 | Tex Innovation Ab | Method for treating insulating fiber |
US4043344A (en) * | 1976-09-20 | 1977-08-23 | American Cyanamid Company | Non-absorbable surgical sutures coated with polyoxyethylene-polyoxypropylene copolymer lubricant |
US4047533A (en) * | 1976-09-20 | 1977-09-13 | American Cyanamid Company | Absorbable surgical sutures coated with polyoxyethylene-polyoxypropylene copolymer lubricant |
DE2741765A1 (en) * | 1976-09-20 | 1978-03-30 | American Cyanamid Co | SURGICAL SEWING MATERIAL AND THEIR USE |
US5677058A (en) * | 1990-01-18 | 1997-10-14 | Eastman Chemical Company | Lubricant impregnated fibers and processes for preparation thereof |
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