WO2009000128A1 - A textile with shape memory function and treatment process thereof - Google Patents

A textile with shape memory function and treatment process thereof Download PDF

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Publication number
WO2009000128A1
WO2009000128A1 PCT/CN2007/070172 CN2007070172W WO2009000128A1 WO 2009000128 A1 WO2009000128 A1 WO 2009000128A1 CN 2007070172 W CN2007070172 W CN 2007070172W WO 2009000128 A1 WO2009000128 A1 WO 2009000128A1
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WO
WIPO (PCT)
Prior art keywords
shape memory
textile
memory function
fiber
yarn
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Application number
PCT/CN2007/070172
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French (fr)
Chinese (zh)
Inventor
Jinlian Hu
Yong Zhu
Yan Liu
H.P. Yau
Jing Lu
Original Assignee
The Hong Kong Polytechnic University
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Publication date
Application filed by The Hong Kong Polytechnic University filed Critical The Hong Kong Polytechnic University
Priority to PCT/CN2007/070172 priority Critical patent/WO2009000128A1/en
Priority to CN2007801004760A priority patent/CN101883889A/en
Publication of WO2009000128A1 publication Critical patent/WO2009000128A1/en

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Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres

Definitions

  • the invention relates to a textile having a shape memory function and a treatment method thereof. Background technique
  • Shape memory materials for apparel and dressing may be in the form of fibers, yarns or fabrics.
  • various documents including patent documents mainly focus on woven fabrics or nonwoven fabrics in which yarns having a shape memory function are bonded by an adhesive.
  • a patent for a woven fabric relating to a fiber having a shape memory function (U.S. Patent No. 5,128,197, July 1997) has different functions depending on a glass transition temperature (hereinafter referred to as: Tg).
  • Tg glass transition temperature
  • the woven fabric has a low glass transition temperature, is not deformed, wrinkled, and can be used for creases of slacks or wrinkles of shirts.
  • the woven fabric is made of a fiber having a shape memory function in which the glass transition temperature is higher than normal temperature, so that the hand feel is hard at normal temperature.
  • nonwoven fabric which is formed by bonding a resin fiber having shape memory properties and a resin having shape memory properties by using an adhesive.
  • the thickness is not uniform, and it is difficult to uniformly distribute the adhesive, and since the adhesive is expensive, the cost is also high.
  • Italy has reported a smart shirt with sleeves that automatically pleat in the summer.
  • the shirt is made of Nitinol core-spun yarn, which is very hard to handle and has a high production cost due to the need to use expensive nickel-titanium alloy.
  • a number of patents and various types of literature have reported the use of shape memory alloys in fabric weaving.
  • the present invention provides a method of processing a textile having a shape memory function, and a series of textiles having a shape memory function made of a material treated by the method.
  • the textile solves the problems of the existence of conventional nonwoven fabrics and woven fabrics made of shape memory polymers.
  • the textiles mentioned in the present invention include: various types of fibers, yarns, fabrics, nonwoven fabrics, and various garments and the like.
  • the method for processing a textile having a shape memory function according to the present invention is: being in a relaxed state or a tension state
  • the textile is heat treated for 1 to 15 minutes.
  • the internal stress of the textile is removed, and the purpose of improving the setting rate and recovery rate of the textile is achieved, so that the shape memory-enabled textile obtains good dimensional stability, soft hand feeling and low heat shrinkage.
  • the heat treatment may be: placing the textile in a relaxed state or a tension state in a container for 3 to 15 minutes; or: placing the textile in a relaxed state or a tension state in an oven or pressure In the ironing machine, the temperature is controlled at 60 ⁇ 175° C for 1 ⁇ 10 minutes.
  • the shape memory-retaining textile is a fiber produced by wet spinning, dry spinning, melt spinning, and reaction spinning using a shape memory polymer.
  • the fibers may be a single filament, a plurality of filaments, and an artificial staple.
  • the textile having shape memory function is a yarn having a shape memory function.
  • the textile having shape memory function is a fabric having a shape memory function.
  • the present invention also provides a textile having a shape memory function which is obtained by the above method, and has a setting rate of 95 to 99% and a recovery rate of 90 to 99%.
  • the fibers, yarns, and fabrics described above When heated to a temperature above the shape memory transition temperature, the fibers, yarns, and fabrics described above are easily restored to their original shape. Thus, in this case, the fabric can be applied to wrinkles, deformation recovery, and many exotic designs in the prior art. detailed description
  • the processing method of the present invention can be used for treating existing spun fibers having a shape memory function to improve the setting rate and recovery rate of the fibers and the shape memory transition temperature, and can also be used for utilizing existing shapes.
  • the fiber-spun yarn of the memory function is processed to improve the dimensional stability and shape memory effect of the yarn. It can also be used to treat fabrics made from existing fibers or yarns with shape memory to improve dimensional stability, hand and hot water shrinkage and shape memory.
  • Step A mixing a difunctional polyglycol with a difunctional isocyanate to form a first mixture; and the difunctional isocyanate is from the next group Choice: isophorone diisocyanate,
  • difunctional polyglycols are selected from the group consisting of: polyethylene diadipate, polyethylene oxalate, poly- ⁇ -caprolactone, poly Tetrahydrofuran, polybutylene adipate, polyepoxyhydrazine, and mixtures thereof.
  • Step ⁇ Heat the first mixture to 60 to 90 ° C for 1 to 4 hours.
  • Step C adding a chain extender to the heated first mixture, controlling the temperature at 60 to 90 ° C for 1 to 4 hours to complete the polymerization reaction; wherein the chain extender is selected from the group consisting of: 3-propanediol, 1,4-butanediol, 1,2-ethanediol, 4,4'-dihydroxybiphenyl, 4,4'-dimethylolpropionic acid, hydrazine, hydrazine-bis(2- Hydroxyethyl)-isonicotinamide, hydrazine-methyldiethanolamine, ethoxylated bisphenolphthalein, 1,2-diaminoethane, 1,2-diaminopropane, and mixtures thereof.
  • the chain extender is selected from the group consisting of: 3-propanediol, 1,4-butanediol, 1,2-ethanediol, 4,4'-dihydroxybiphenyl, 4,4'-dimethyl
  • the total amount of the bifunctional isocyanate and the chain extender and the difunctional polyglycol molar ratio is 2: 1 to 1:1;
  • the solvent is selected from the group consisting of: dimethylformamide, hydrazine, hydrazine dimethylacetamide, 1-methyl
  • the difunctional polyglycol has a molar weight of from 500 to 1,000.
  • Step ⁇ ' The poly ⁇ -caprolactone-4000 (PCL-4000) is temperature-controlled under vacuum 70. C heating for 12 hours;
  • Step ⁇ ' Remove the diphenylmethane diisocyanate (MDI) from the freezer and place it in a fume hood for later use; then dehumidify it in a vacuum oven at 70 ° C for 1 hour;
  • the dimer diphenylmethane diisocyanate is filtered to remove precipitates and impurities therein for use;
  • Step C' The molecular chain extender was dehumidified at a temperature of 100 ° C for 1 hour.
  • Step D' Strictly control the molar ratio of the total amount of poly- ⁇ -caprolactone to 1, 4-butanediol to diphenylformamidine diisocyanate to 1 : 1, and pour them into a high-speed stirring head, respectively. The mixture was then sprayed into a twin screw extruder for further reaction. Finally stack the polyurethane.
  • Circulating air jet spinning speed linear density boiling water shrinkage strength gas temperature number (m/min) (dtex) (after treatment) (cn/te)
  • the fibers mentioned in Table 1, Table 2 and Table 3 have a shape memory transition temperature between 10 °C and 100 °C.
  • the shape memory curve and intensity were measured by the Instom 4466 material analyzer. When the shape was changed to 100%, the setting rate reached 95% and the recovery rate reached 90%.
  • the fiber sample 1 having the shape memory function in Table 1 was obtained by wet spinning from a shape memory polymer solution.
  • the tensioned staple fiber is steamed for 10 minutes, the shape memory function fiber has good dimensional stability, a soft hand and a low hot water shrinkage. Its setting rate reached 99% and the response rate reached 95%.
  • the fiber sample 2 in Table 1 was obtained by wet spinning from a shape memory polymer solution.
  • the fiber sample was baked in an oven at a temperature of 120 ° C for 15 minutes to remove the stress, and then cut into a 38 mm wool fiber segment. Its setting rate reached 99% and the response rate reached 95%.
  • Example (3) The fiber sample 1 in Table 2 was obtained by melt spinning from a shape memory slice. After the fiber was baked in an oven at a temperature of 175 ° C for 1 minute, the fiber had excellent dimensional stability and a soft hand. The setting rate reached 99% and the response rate reached 95%. The shape memory transition temperature of the fiber was reduced from 60 ° C to 30 D C.
  • the fiber sample 2 in Table 2 was obtained by melt spinning from a shape memory slice.
  • the fiber is spun as a core yarn and a cotton fiber.
  • the core spun yarn was heat-treated at 60 ° C for 5 minutes under tension in an oven to eliminate internal stress.
  • the treated yarn is woven into a fabric, the dimensional stability of the fabric is improved during use, the cloth surface is flat, and there is no wrinkling or blistering caused by heat shrinkage.
  • the untreated core spun yarn can also be directly woven to form a fabric.
  • the fabric was treated under tension in a press for 3 minutes at a temperature of 150 ° C to achieve dimensional stability.
  • Table 1 lists the comparison values of the boiling water shrinkage ratio and the hot air shrinkage ratio of the samples 1 to 7 obtained by the solution spinning method before and after the heat treatment. It can be seen from the above that the boiling water shrinkage rate and the hot air shrinkage ratio of the samples 1 to 7 are greatly reduced by the heat treatment according to the method of the present invention. Further, the boiling water shrinkage of each of the samples obtained by melt spinning is also shown in Tables 2 and 3. It can also be seen from the above that each sample has a lower boiling water shrinkage after treatment by the method of the present invention.
  • the fiber having the shape memory function after the above heat treatment can be used for a wide variety of purposes.
  • the following examples are yarns having a shape memory function made of the above heat-treated fibers.
  • the fiber and the ordinary cotton fiber are spun into a core-spun yarn in which a fiber having a shape memory function is used as a core and a common cotton fiber is used as a cladding.
  • the core yarn changes from a straight line to a curve.
  • the fiber quickly returns to its original state.
  • the fiber and the polyester bulk yarn of the embodiment (1) are spun into a loop yarn, and the yarn maintains a linear shape at a normal temperature, and is heat-treated in a relaxed state, and the temperature is higher than a fiber transition having a shape memory function.
  • the aforementioned fibers are deformed and curled, and the polyester fluffy yarn is expanded to form a loop on the surface of the blended yarn.
  • the temperature is below the temperature, the yarn is restored to its original state.
  • the fiber in the example (4) and the ordinary natural fiber or synthetic fiber were spun into a sewing thread at a mixing ratio of 90 to 3/3 to 90%. When heated above the transition temperature, the sewing mark is fixed and the stability is improved.
  • the fiber having the shape memory function and the ordinary natural fiber in Example (3) were spun into a friction yarn in which a fiber having a shape memory function was used as a core and a natural fiber was used as a cladding.
  • the yarn is heated to a temperature above the fiber transition temperature having a shape memory function, which is deformed to curl and then cooled in a crimped shape to a temperature below the transition temperature.
  • the yarn obtained a curled shape. After repeated stretching, the yarn is straightened. When heated to a temperature above the transition temperature, the yarn returns to a curled shape.
  • the fiber and/or yarn having the shape memory function after the above heat treatment can be used for a wide variety of purposes, and the following examples are fabrics and garments having a shape memory function made of the heat-treated fibers and/or yarns described above. .
  • Fabrics made of fibers and yarns with shape memory function are made by weaving, knitting and non-woven techniques.
  • Nonwoven techniques include needling, spunlacing, melt blowing, stitching, gluing, and the like.
  • the pile of the corduroy is formed and shaped by cutting the pile and heat-treating at a temperature higher than the transition temperature of the fiber having shape memory function in the pile warp yarn.
  • the corduroy pile has better anti-fall properties. Even if the fabric is pressed or fluffed during use, the pile can be re-erected when heated to a temperature above the transition temperature.
  • the tights were knitted using the friction yarns of Example (8) and shaped at a temperature above the transition temperature to obtain the original size.
  • the bra can be stretched for easy wearing.
  • the aforementioned fiber has a transition temperature lower than the body temperature, so that when worn on the body, the bra is gradually tightened until it returns to its original size to achieve the desired body-wound effect.
  • the braid having the shape memory function in Example (1) was used to form a braid, and was set at a temperature higher than the transition temperature.
  • the shape stability and hand of the woven fabric are better than those of other synthetic fibers.
  • the fiber having the shape memory function and the cotton fiber in Example (4) were bonded to each other to form a nonwoven fabric. Bonding the fiber having the shape memory function and the cotton fiber into a net, and when the temperature is higher than a temperature at which the fiber having the shape memory function starts to flow, using the fiber having the shape memory function having the viscosity
  • the web is configured.
  • the nonwoven has a better hand and a more uniform thickness and length.
  • the production cost is also much lower than that of nonwoven fabrics made of short fibers and shape memory polymers (see JP-A No. 252353/1986). Even if wrinkles and deformation occur during cleaning or long-term storage, the nonwoven fabric can easily return to its original shape when heated to a temperature higher than the transition temperature, so it is very suitable for use in collars, Cuffs, shoulders and bras.
  • the woven fabric was made using the yarn of Example (6).
  • the fabric was originally in a flat state. When heated to a temperature above the transition temperature, the yarn becomes a looped yarn and the fabric expands. When stretched in a straight line and cooled to a temperature below the transition temperature, the fabric returns to its original flat appearance.
  • a styling sports bra is made by knitting the yarn in the embodiment (5).
  • the bodice has a transition temperature of approximately 30 ° C.
  • the bra is tightened, thereby effectively exercising the wearer's body. Protected, but the wearer does not feel too tight or uncomfortable.
  • the cotton yarn was used as the warp yarn and the weft yarn, and the core yarn in the example (5) was woven as a pile warp yarn to form velvet.
  • the velvet pile is formed and shaped by cutting the pile and heat-treating at a temperature higher than the transition temperature of the shape memory function fiber in the pile warp yarn.
  • the pile of the velvet has good anti-falling properties. Even if the velvet is pressed or fluffed during use, the pile can be re-erected when heated to a temperature above the transition temperature.
  • a spun-laid nonwoven fabric is formed using a melt of a shape memory polymer.
  • the shape memory polymer is forced into a high velocity air stream or other gas stream by a spinneret system.
  • the formed yarn is laid on a support to form a web, which may be a net drum or a conveyor belt.
  • the extruded monofilament is withdrawn and internally oriented through a roll or high velocity gas stream prior to web formation to increase the strength of the shape memory nonwoven.
  • the needle-punched nonwoven fabric was formed using the fibers having the shape memory function in Example (4).
  • the fibers with shape memory function are placed in the inclined grid circle and are placed on the larger grid circle in an intersecting manner, which moves along the right angle direction toward the original direction of the cross-laying web. .
  • the barbed needle is then pushed through the cross-over web to drive a portion of the fiber through the mesh; the fiber remains in it when the needle is withdrawn.
  • a fabric having a shape memory function is formed from two layers of fabric having a shape memory function, the fabric having a shape memory function comprising a spunlaid nonwoven fabric of the embodiment (16) with a scrim substrate and an embodiment (17) Acupuncture nets and slender fabric components.

Abstract

A treatment process for a textile with shape memory function is disclosed. The treatment process includes thermally treating the textile in the tensioning state or the relaxation state for 1-15 min. By way of the treatment, the internal stress of the fiber can be relieved, so as to improve the sizing rate and the recovery rate of the fiber, and the shape memory transition temperature of the textile can be changed to make the fiber with shape memory function have excellent dimensional stability, soft handle and lower percent thermal shrinkage.

Description

具有形状记忆功能的纺织品及其处理方法 技术领域  Textile with shape memory function and processing method thereof
本发明涉及一种具有形状记忆功能的纺织品及其处理方法。 背景技术  The invention relates to a textile having a shape memory function and a treatment method thereof. Background technique
形状记忆材料最重要且有前途的应用主要集中于生物制药、纺织和服饰、玩具、包装、 国防以及工业领域。 用于服饰和包扎 (绷带)等的形状记忆材料可以是纤维、 纱线或织物 等形式。 但是, 包括专利文献在内的各类文献主要关注机织织物或非织造布, 其中具有形 状记忆功能的纱线通过粘合剂粘结。  The most important and promising applications of shape memory materials are in the biopharmaceutical, textile and apparel, toy, packaging, defense and industrial sectors. Shape memory materials for apparel and dressing (bandages) and the like may be in the form of fibers, yarns or fabrics. However, various documents including patent documents mainly focus on woven fabrics or nonwoven fabrics in which yarns having a shape memory function are bonded by an adhesive.
一件涉及具有形状记忆功能的纤维的机织织物的专利 (1997 年 7 月的美国专利 No.5128197)根据玻璃转变温度(以下称为: Tg)而具有不同的功能。 该机织织物具有较 低的玻璃转变温度, 不会变形、 起皱, 可以用于休闲裤的折缝或者衬衣的褶皱。 但该机织 织物釆用玻璃转变温度高于常温的具有形状记忆功能的纤维制成, 因而常温时手感很硬。  A patent for a woven fabric relating to a fiber having a shape memory function (U.S. Patent No. 5,128,197, July 1997) has different functions depending on a glass transition temperature (hereinafter referred to as: Tg). The woven fabric has a low glass transition temperature, is not deformed, wrinkled, and can be used for creases of slacks or wrinkles of shirts. However, the woven fabric is made of a fiber having a shape memory function in which the glass transition temperature is higher than normal temperature, so that the hand feel is hard at normal temperature.
曾有人提出一种非织造布,该非织造布利用粘合剂将具有形状记忆性能的树脂纤维和 具有形状记忆性能的树脂粘合构成。 但是该厚度不均匀, 且很难均勾的分布粘合剂, 并且 由于粘合剂很昂贵, 成本也很高。  There has been proposed a nonwoven fabric which is formed by bonding a resin fiber having shape memory properties and a resin having shape memory properties by using an adhesive. However, the thickness is not uniform, and it is difficult to uniformly distribute the adhesive, and since the adhesive is expensive, the cost is also high.
意大利报道了一种智能衬衣, 具有能在夏季自动打褶的袖子。 该衬衣由镍钛合金包芯 纱线制成, 手感很硬, 并且由于需要釆用昂贵的镍钛合金, 生产成本也很高。 很多专利以 及各类文献都报道了在织物织造中采用形状记忆合金的情况。  Italy has reported a smart shirt with sleeves that automatically pleat in the summer. The shirt is made of Nitinol core-spun yarn, which is very hard to handle and has a high production cost due to the need to use expensive nickel-titanium alloy. A number of patents and various types of literature have reported the use of shape memory alloys in fabric weaving.
现有专利、 报道、 产品中涉及的形状记忆纺织品都存在以下缺点: 1. 当在低于形状 记忆聚合物的玻璃转变温度下使用时, 手感很硬; 2. 在热水或者热空气中时, 会产生很 大的收缩; 3. 形状记忆聚合物制成的非织造布需要黏合剂, 易于出现强度、 厚度不均勾 的现象, 并且成本很高。 发明内容  The existing patents, reports, and shape memory textiles involved in the product have the following disadvantages: 1. When used at a glass transition temperature lower than the shape memory polymer, the hand feel is very hard; 2. When in hot water or hot air , will produce a large shrinkage; 3. Shape memory polymer made of non-woven fabric requires adhesive, easy to appear strength, thickness unevenness, and high cost. Summary of the invention
针对以上问题, 本发明提供了一种具有形状记忆功能的紡织品的处理方法, 以及采用 经该方法处理后的材料制成的一系列具有形状记忆功能的纺织品。所述纺织品解决了形状 记忆聚合物制成的传统非织造布和机织织物的存在的问题。 本发明中提及的纺织品包括: 包括各类纤维、 纱线、 织物、 非织造布以及各种服装等。  In view of the above problems, the present invention provides a method of processing a textile having a shape memory function, and a series of textiles having a shape memory function made of a material treated by the method. The textile solves the problems of the existence of conventional nonwoven fabrics and woven fabrics made of shape memory polymers. The textiles mentioned in the present invention include: various types of fibers, yarns, fabrics, nonwoven fabrics, and various garments and the like.
根据本发明的具有形状记忆功能的纺织品的处理方法为:对处于松弛状态或紧张状态 的所述纺织品进行 1~15分钟热处理。 通过该热处理, 去除纺织品的内部应力, 达到改善 纺织品的定型率和回复率的目的, 使该具有形状记忆功能的纺织品获得很好的尺寸稳定 性, 柔软的手感以及较低的热收缩率。 The method for processing a textile having a shape memory function according to the present invention is: being in a relaxed state or a tension state The textile is heat treated for 1 to 15 minutes. By this heat treatment, the internal stress of the textile is removed, and the purpose of improving the setting rate and recovery rate of the textile is achieved, so that the shape memory-enabled textile obtains good dimensional stability, soft hand feeling and low heat shrinkage.
具体地: 所述热处理可以为将处于松弛状态或紧张状态的所述纺织品置于容器中蒸 3 ~15分钟; 或者也可为: 将处于松弛状态或紧张状态的所述纺织品置于烘箱或压烫机中, 控制温度为 60~175° C烘烤 1~10分钟。  Specifically, the heat treatment may be: placing the textile in a relaxed state or a tension state in a container for 3 to 15 minutes; or: placing the textile in a relaxed state or a tension state in an oven or pressure In the ironing machine, the temperature is controlled at 60~175° C for 1~10 minutes.
其中,该具有形状记忆功能的纺织品为利用形状记忆聚合物通过湿法纺丝、干法纺丝、 熔体紡丝以及反应纺丝 (reaction spinning)制成的纤维。 所述纤维可以是单根长丝, 多根 长丝、 以及人造短纤。  Among them, the shape memory-retaining textile is a fiber produced by wet spinning, dry spinning, melt spinning, and reaction spinning using a shape memory polymer. The fibers may be a single filament, a plurality of filaments, and an artificial staple.
其中, 该具有形状记忆功能的纺织品为具有形状记忆功能的纱线。  Wherein, the textile having shape memory function is a yarn having a shape memory function.
其中, 该具有形状记忆功能的纺织品为具有形状记忆功能的织物。  Wherein, the textile having shape memory function is a fabric having a shape memory function.
本发明还提供了一种利用上述方法处理制得的具有形状记忆功能的紡织品,该纺织品 的定型率为 95~99%, 回复率为 90~99%。  The present invention also provides a textile having a shape memory function which is obtained by the above method, and has a setting rate of 95 to 99% and a recovery rate of 90 to 99%.
当将其加热到温度高于形状记忆转变温度时, 上述纤维、 纱线、 织物很容易恢复到其 所记忆的原始形状。 因而, 在这种情况下, 织物可以应用于去皱、 变形恢复以及现有技术 中的很多奇特设计。 具体实施方式  When heated to a temperature above the shape memory transition temperature, the fibers, yarns, and fabrics described above are easily restored to their original shape. Thus, in this case, the fabric can be applied to wrinkles, deformation recovery, and many exotic designs in the prior art. detailed description
下面参照实施例对本发明进行详细说明,这些实施例的目的不在于对本发明的保护范 围构成限制。  The invention is described in detail below with reference to the embodiments, which are not intended to limit the scope of the invention.
本发明的处理方法可以用于对已有的具有形状记忆功能的初紡纤维进行处理, 以改善 该纤维的定型率和回复率以及形状记忆转变温度,也可以用于对利用已有的具有形状记忆 功能的纤维纺成的纱线进行处理, 以改善纱线的尺寸稳定性, 形状记忆效果。 还可以用于 对利用已有的具有形状记忆功能的纤维或纱线制成的织物进行处理, 以改善其尺寸稳定 性、 手感以及热水收缩率和形状记忆效果。  The processing method of the present invention can be used for treating existing spun fibers having a shape memory function to improve the setting rate and recovery rate of the fibers and the shape memory transition temperature, and can also be used for utilizing existing shapes. The fiber-spun yarn of the memory function is processed to improve the dimensional stability and shape memory effect of the yarn. It can also be used to treat fabrics made from existing fibers or yarns with shape memory to improve dimensional stability, hand and hot water shrinkage and shape memory.
下面说明利用本发明的方法对已有的具有形状记忆功能的初纺纤维进行处理的过程。 在进行该处理之前, 需要制备具有形状记忆功能的纤维备用, 该制备过程包括以下步 骤:  The process of treating the existing as-spun fiber having the shape memory function by the method of the present invention will now be described. Before performing this treatment, it is necessary to prepare a fiber backup having a shape memory function, and the preparation process includes the following steps:
1 . 制备用于纺丝的聚合物  1. Preparation of polymers for spinning
首先, 说明用于干法纺丝或湿法纺丝的形状记忆聚氨酯溶液的合成方法, 该方包括以 下步骤: First, a method for synthesizing a shape memory polyurethane solution for dry spinning or wet spinning, which includes Next steps:
步骤 A: 向不含活性氢的溶剂中混入双官能团聚二醇与双官能团异氰酸盐(酯) , 形 成第一混合物; 其中, 所述双官能团异氰酸盐(酯)从下组中选择: 异佛尔酮二异氰酸酯、Step A : mixing a difunctional polyglycol with a difunctional isocyanate to form a first mixture; and the difunctional isocyanate is from the next group Choice: isophorone diisocyanate,
4,4-双环乙基甲烷二异氰酸酯、 1,6-己撑二异氰酸酯 (1,6-hexamethylene diisocyanate) 、 脂 族二异氰酸酯、 联苯甲烷 -4, 4'-二异氰酸酯、 甲苯二异氰酸酯、 四甲基二甲苯二异氰酸酯 以及其混合物; 所述双官能团聚二醇从下组中选择: 聚己二酸二乙二醇酯、 聚乙二酸乙二 醇酯、 聚 ε-己内酯、 聚四氢呋喃、 聚己二酸丁二醇酯、 聚环氧丙垸以及其混合物。 4,4-dicycloethylmethane diisocyanate, 1,6-hexamethylene diisocyanate, aliphatic diisocyanate, biphenylmethane-4,4'-diisocyanate, toluene diisocyanate, four Methyl xylene diisocyanate and mixtures thereof; the difunctional polyglycols are selected from the group consisting of: polyethylene diadipate, polyethylene oxalate, poly-ε-caprolactone, poly Tetrahydrofuran, polybutylene adipate, polyepoxyhydrazine, and mixtures thereof.
步骤 Β: 加热第一混合物至 60〜90°C并持续 1〜4小时。  Step Β: Heat the first mixture to 60 to 90 ° C for 1 to 4 hours.
步骤 C:向加热后的第一混合物中添加扩链剂,控制温度在 60〜90°C,持续 1〜4小时, 完成聚合反应; 其中, 所述扩链剂从下组中选择: 1,3-丙二醇、 1,4-丁二醇、 1,2-乙二醇、 4,4'-二羟基联苯、 4,4'-二羟甲基丙酸、 Ν,Ν-双 (2-羟乙基) -异烟酰胺、 Ν-甲基二乙醇胺、 乙氧基化双酚 Α、 1,2-二氨基乙烷、 1,2-二氨基丙烷以及其混合物。  Step C: adding a chain extender to the heated first mixture, controlling the temperature at 60 to 90 ° C for 1 to 4 hours to complete the polymerization reaction; wherein the chain extender is selected from the group consisting of: 3-propanediol, 1,4-butanediol, 1,2-ethanediol, 4,4'-dihydroxybiphenyl, 4,4'-dimethylolpropionic acid, hydrazine, hydrazine-bis(2- Hydroxyethyl)-isonicotinamide, hydrazine-methyldiethanolamine, ethoxylated bisphenolphthalein, 1,2-diaminoethane, 1,2-diaminopropane, and mixtures thereof.
该合成过程中,所述双官能团异氰酸酯和所述扩链剂的总量与所述双官能团聚二醇的 摩尔比为 2: 1至 1 : 1;  The synthesis process, the total amount of the bifunctional isocyanate and the chain extender and the difunctional polyglycol molar ratio is 2: 1 to 1:1;
该合成过程中, 所述溶剂从下组中选择: 二甲基甲酰胺、 Ν, Ν二甲基乙酰胺、 1-甲基 In the synthesis, the solvent is selected from the group consisting of: dimethylformamide, hydrazine, hydrazine dimethylacetamide, 1-methyl
-2-吡咯烷酮、 1甲基亚砜以及其混合物。 -2-pyrrolidone, 1-methyl sulfoxide, and mixtures thereof.
该合成过程中, 所述双官能团聚二醇的摩尔重量为 500〜1000。  In the synthesis, the difunctional polyglycol has a molar weight of from 500 to 1,000.
其次, 说明用于熔体纺丝的形状记忆聚氨酯的合成方法, 该方法包括以下步骤: 步骤 Α' : 将聚 ε-己内酯一 4000 (PCL-4000) 在真空状态下控温 70。C加热 12小时; 步骤 Β' : 从冷藏室中取出二苯基甲烷二异氰酸酯 (MDI) , 置于通风橱中备用; 然后 将其在真空炉中控温 70°C进一步除湿 1小时; 将熔化状态的二聚体二苯基甲烷二异氰酸 酯过滤, 以去除其中的沉淀物以及杂质后备用;  Next, a method of synthesizing a shape memory polyurethane for melt spinning is described, which comprises the following steps: Step Α': The polyε-caprolactone-4000 (PCL-4000) is temperature-controlled under vacuum 70. C heating for 12 hours; Step Β ' : Remove the diphenylmethane diisocyanate (MDI) from the freezer and place it in a fume hood for later use; then dehumidify it in a vacuum oven at 70 ° C for 1 hour; The dimer diphenylmethane diisocyanate is filtered to remove precipitates and impurities therein for use;
步骤 C' : 在温度 100°C的条件下将分子扩链剂除湿 1小时备用。  Step C': The molecular chain extender was dehumidified at a temperature of 100 ° C for 1 hour.
步骤 D' : 严格控制聚 ε-己内酯与 1, 4一丁二醇的总量与二苯基甲垸二异氰酸酯的摩 尔比为 1 : 1, 将其分别倒入高速搅拌头中。然后将混合物喷射至双螺杆挤出机中以进一步 反应。 最后堆放聚氨酯。  Step D': Strictly control the molar ratio of the total amount of poly-ε-caprolactone to 1, 4-butanediol to diphenylformamidine diisocyanate to 1 : 1, and pour them into a high-speed stirring head, respectively. The mixture was then sprayed into a twin screw extruder for further reaction. Finally stack the polyurethane.
所有反应均在氮环境下进行。  All reactions were carried out under a nitrogen atmosphere.
2. 制备初纺纤维  2. Preparation of as-spun fiber
利用制备好的具有形状记忆功能的聚氨酯溶液按照如表 1所示的参数进行湿法纺丝, 获得具有形状记忆功能的初纺纤维;利用制备好的形状记忆聚氨酯熔融物按照如表 2所示 的参数进行熔体纺丝, 获得具有形状记忆功能的初纺纤维; 利用制备好的形状记忆聚氨酉 I 溶液按照如表 3所示的参数进行干法纺丝, 获得具有形状记忆功能的初纺纤维。 表 1 Using the prepared polyurethane solution having shape memory function, wet spinning according to the parameters shown in Table 1, to obtain a pseudo-spun fiber having a shape memory function; using the prepared shape memory polyurethane melt as shown in Table 2 The parameters were melt-spun to obtain the as-spun fiber with shape memory function; the prepared shape memory polyurethane solution was dry-spun according to the parameters shown in Table 3, and the shape memory function was obtained. Spinning fiber. Table 1
参数 1 2 3 4 5 6 7 喷丝孔直径 (mm) 0.08 0.08 0.08 0.08 0.15 0.08 0.08 喷丝孔数目 36 36 18 30 1 36 18 水浴温度 (°c ) 25 25 25 25 25 25 25 拉伸比 in the raising 1.5 2.0 1.2 1.6 1.2 1.2 1.6 干燥滚筒拉伸比 1.5 1.5 1.7 1.7 1.2 1.7 1.3 干燥机温度 (°C ) 65 65 60 62 65 60 65  Parameter 1 2 3 4 5 6 7 Spinneret diameter (mm) 0.08 0.08 0.08 0.08 0.15 0.08 0.08 Number of orifices 36 36 18 30 1 36 18 Bath temperature (°c) 25 25 25 25 25 25 25 Stretch ratio in The raising 1.5 2.0 1.2 1.6 1.2 1.2 1.6 Drying drum stretching ratio 1.5 1.5 1.7 1.7 1.2 1.7 1.3 Dryer temperature (°C) 65 65 60 62 65 60 65
纺丝速度 (m/min) 20 22 20 20 21 21 20 线密度 (dtex) 150 200 184 260 30 300 100 靭度 (cn/tex) 7.0 7.8 8.2 7.5 8.0 11.2 沸水收缩 处理前 40 37 28 35 35 22.5 25 率 (%) 处理后 5.0 4.5 3.0 3.5 4.0 2.5 3.0 热空气收 52.5 45 35 38 38 30 32  Spinning speed (m/min) 20 22 20 20 21 21 20 Linear density (dtex) 150 200 184 260 30 300 100 Toughness (cn/tex) 7.0 7.8 8.2 7.5 8.0 11.2 Before boiling water shrinkage treatment 40 37 28 35 35 22.5 25 rate (%) after treatment 5.0 4.5 3.0 3.5 4.0 2.5 3.0 Hot air collection 52.5 45 35 38 38 30 32
缩率(%)  Shrinkage(%)
(150° C, 处理后 12.5 10.0 7.5 8.0 8.5 5.0 7.0  (150 ° C, after treatment 12.5 10.0 7.5 8.0 8.5 5.0 7.0
lOmin)  lOmin)
表 2 纺丝温度 喷丝孔数 纺丝速度 线密度 沸水收缩 强度 Table 2 Spinning temperature, number of spinning holes, spinning speed, linear density, boiling water shrinkage strength
(°C) 目 (m/min) (dtex) 率 (处理 ( cn/te ) 后) (%)  (°C) Head (m/min) (dtex) rate (after processing ( cn/te )) (%)
200 18 400 10 5.0 13.8 200 18 400 10 5.0 13.8
1 1
210 18 500 150 3.0 11.7 210 18 500 150 3.0 11.7
2 2
220 30 600 200 3.0 12.5 220 30 600 200 3.0 12.5
3 3
3 3
循环空 喷 丝 孔 纺丝速度 线密度 沸水收缩率 强度 气温度 数目 ( m/min) (dtex) (处理后) ( cn/te ) Circulating air jet spinning speed linear density boiling water shrinkage strength gas temperature number (m/min) (dtex) (after treatment) (cn/te)
(°C) (%) (°C) (%)
1 230 30 500 180 3.0 7.01 230 30 500 180 3.0 7.0
2 220 36 400 260 3.5 7.52 220 36 400 260 3.5 7.5
3 235 18 450 120 3.5 6.8 表 1、 表 2和表 3 中提及的纤维具有 10°C〜100°C之间的形状记忆转变温度。 通过 Instom 4466材料测定器测得形状记忆曲线和强度, 形变为 100%时, 其定型率达到了 95 %, 回复率达到 90%。 3 235 18 450 120 3.5 6.8 The fibers mentioned in Table 1, Table 2 and Table 3 have a shape memory transition temperature between 10 °C and 100 °C. The shape memory curve and intensity were measured by the Instom 4466 material analyzer. When the shape was changed to 100%, the setting rate reached 95% and the recovery rate reached 90%.
下面说明利用本发明的处理方法对通过不同纺丝方法获得的前述具有形状记忆功能 的初纺纤维进行处理的实施例。  Next, an embodiment in which the aforementioned shape-memory-initiated spun-fiber obtained by a different spinning method is treated by the treatment method of the present invention will be described.
实施例 (1 )  Example (1)
表 1中的具有形状记忆功能的纤维试样 1由形状记忆聚合物溶液通过湿法纺丝获得。 当将紧张状态的初纺纤维蒸 10分钟, 该具有形状记忆功能的纤维便具有了很好的尺寸稳 定性, 柔软的手感以及较低的热水收缩率。 其定型率达到 99%, 回复率达到了 95%。  The fiber sample 1 having the shape memory function in Table 1 was obtained by wet spinning from a shape memory polymer solution. When the tensioned staple fiber is steamed for 10 minutes, the shape memory function fiber has good dimensional stability, a soft hand and a low hot water shrinkage. Its setting rate reached 99% and the response rate reached 95%.
实施例 (2)  Example (2)
表 1中的纤维试样 2由形状记忆高分子溶液中通过湿法纺丝获得。将该纤维试样在烘 箱中控温 120°C烘烤 15分钟去除应力后, 切成 38mm羊毛纤维段。 其定型率达到 99%, 回复率达到了 95%。  The fiber sample 2 in Table 1 was obtained by wet spinning from a shape memory polymer solution. The fiber sample was baked in an oven at a temperature of 120 ° C for 15 minutes to remove the stress, and then cut into a 38 mm wool fiber segment. Its setting rate reached 99% and the response rate reached 95%.
实施例 (3) 表 2中的纤维试样 1由形状记忆切片通过熔体纺丝获得。将所述纤维在烘箱中控制温 度为 175° C烘烤 1分钟后, 该纤维具有很好得尺寸稳定性和柔软的手感。 定型率达到 99 % , 回复率达到了 95 %。 所述纤维的形状记忆转变温度由 60 ° C 降低到了 30D C。 Example (3) The fiber sample 1 in Table 2 was obtained by melt spinning from a shape memory slice. After the fiber was baked in an oven at a temperature of 175 ° C for 1 minute, the fiber had excellent dimensional stability and a soft hand. The setting rate reached 99% and the response rate reached 95%. The shape memory transition temperature of the fiber was reduced from 60 ° C to 30 D C.
实施例 (4)  Example (4)
表 2中的纤维试样 2由形状记忆切片通过熔体纺丝获得。将该纤维作为纱芯与棉纤维 纺制成包芯纱。将该包芯纱放在烘箱内紧张状态下控制温度为 60 ° C热处理 5分钟, 消除 内应力。 将处理后的纱线织成织物, 织物在使用过程中尺寸稳定性提高, 布面平整, 没有 热收缩引起的起皱或起泡现象。  The fiber sample 2 in Table 2 was obtained by melt spinning from a shape memory slice. The fiber is spun as a core yarn and a cotton fiber. The core spun yarn was heat-treated at 60 ° C for 5 minutes under tension in an oven to eliminate internal stress. The treated yarn is woven into a fabric, the dimensional stability of the fabric is improved during use, the cloth surface is flat, and there is no wrinkling or blistering caused by heat shrinkage.
此外, 未经处理的包芯纱也可以直接织造形成织物。将该织物在压烫机中在紧张状态 下处理 3分钟, 温度为 150° C, 也可达到尺寸稳定的效果。  In addition, the untreated core spun yarn can also be directly woven to form a fabric. The fabric was treated under tension in a press for 3 minutes at a temperature of 150 ° C to achieve dimensional stability.
表 1列出了溶液纺丝法获得的试样 1〜7在经过热处理前后沸水收缩率以及热空气收 缩率的比较值。 从中可以看出, 利用根据本发明方法热处理后, 试样 1〜7的沸水收缩率 和热空气收缩率均有大幅度降低。此外, 表 2和 3中也列出了熔融纺丝获得的各试样的沸 水收缩率, 从中也可以看出, 利用本发明的方法处理后, 各试样具有较低的沸水收缩率。  Table 1 lists the comparison values of the boiling water shrinkage ratio and the hot air shrinkage ratio of the samples 1 to 7 obtained by the solution spinning method before and after the heat treatment. It can be seen from the above that the boiling water shrinkage rate and the hot air shrinkage ratio of the samples 1 to 7 are greatly reduced by the heat treatment according to the method of the present invention. Further, the boiling water shrinkage of each of the samples obtained by melt spinning is also shown in Tables 2 and 3. It can also be seen from the above that each sample has a lower boiling water shrinkage after treatment by the method of the present invention.
尽管没有提供更多的实施例, 可以理解的是, 也可以对利用普通具有形状记忆功能的 纤维纺成的纱线进行上述热处理, 即将其在容器中进行热处理, 以改善纱线的定型率和回 复率, 进而改善其尺寸稳定性、 手感以及热收缩率。  Although no more embodiments are provided, it will be appreciated that it is also possible to carry out the above-described heat treatment of a yarn spun from a fiber having a conventional shape memory function, that is, to heat-treat it in a container to improve the yarn setting rate and The recovery rate, which in turn improves its dimensional stability, feel and heat shrinkage.
如上所述,还可以对利用普通具有形状记忆功能的纤维或纱线制成的织物进行上述热 处理, 即将其在容器中进行热处理, 以改善织物的定型率和回复率, 进而改善其尺寸稳定 性、 手感以及热收缩率。  As described above, it is also possible to perform the above heat treatment on a fabric made of fibers or yarns having a general shape memory function, that is, heat treatment in a container to improve the setting rate and recovery rate of the fabric, thereby improving dimensional stability. , feel and heat shrinkage rate.
经过上述热处理后的具有形状记忆功能的纤维可以用于很多种用途。以下实施例为利 用上述热处理后的纤维制成的具有形状记忆功能的纱线。  The fiber having the shape memory function after the above heat treatment can be used for a wide variety of purposes. The following examples are yarns having a shape memory function made of the above heat-treated fibers.
实施例 (5 )  Example (5)
釆用实施例 (1 ) 中纤维和普通棉纤维纺成包芯纱, 其中以具有形状记忆功能的纤维 作为纤芯而以普通棉纤维作为包层。在反复拉伸或者延伸之后,包芯纱线从直线变为曲线。 当将其至于温度高于具有形状记忆功能的纤维转变温度的热水中时, 纤维迅速回复原状。  In the example (1), the fiber and the ordinary cotton fiber are spun into a core-spun yarn in which a fiber having a shape memory function is used as a core and a common cotton fiber is used as a cladding. After repeated stretching or stretching, the core yarn changes from a straight line to a curve. When it is placed in hot water having a temperature higher than the fiber transition temperature of the shape memory function, the fiber quickly returns to its original state.
实施例 (6)  Example (6)
采用实施例 (1) 中的纤维和聚酯膨松纱纺成圈圈纱, 所述纱线在常温下保持直线形 状, 在松驰状态下进行热处理, 温度高于具有形状记忆功能的纤维转变温度时, 前述纤维 变形卷曲, 聚酯蓬松纱膨胀, 在混纺纱的表面形成圈圈。 当将其拉伸成直线并冷却至转变 温度以下时, 所述纱线恢复原状。 The fiber and the polyester bulk yarn of the embodiment (1) are spun into a loop yarn, and the yarn maintains a linear shape at a normal temperature, and is heat-treated in a relaxed state, and the temperature is higher than a fiber transition having a shape memory function. At the temperature, the aforementioned fibers are deformed and curled, and the polyester fluffy yarn is expanded to form a loop on the surface of the blended yarn. When stretching it into a straight line and cooling it to a transition When the temperature is below the temperature, the yarn is restored to its original state.
实施例 ( 7 )  Example (7)
釆用实施例(4)中的纤维和普通天然纤维或者合成纤维以 90〜3/3~90%的混合比纺成 缝纫线。 当加热到转变温度以上时, 其缝纫标号 (sewing mark) 得以固定, 稳定性提高。  The fiber in the example (4) and the ordinary natural fiber or synthetic fiber were spun into a sewing thread at a mixing ratio of 90 to 3/3 to 90%. When heated above the transition temperature, the sewing mark is fixed and the stability is improved.
实施例 (8 )  Example (8)
釆用实施例 (3 ) 中的具有形状记忆功能的纤维和普通天然纤维纺成摩擦纱, 其中以 具有形状记忆功能的纤维作为纤芯, 以天然纤维作为包层。 加热所述纱至温度高于具有形 状记忆功能的纤维转变温度, 其变形卷曲, 然后以卷曲形状冷却至温度低于转变温度。 所 述纱线获得卷曲形状。 反复拉伸后, 所述纱线变直。 当加热至温度高于转变温度, 纱线恢 复到卷曲形状。  The fiber having the shape memory function and the ordinary natural fiber in Example (3) were spun into a friction yarn in which a fiber having a shape memory function was used as a core and a natural fiber was used as a cladding. The yarn is heated to a temperature above the fiber transition temperature having a shape memory function, which is deformed to curl and then cooled in a crimped shape to a temperature below the transition temperature. The yarn obtained a curled shape. After repeated stretching, the yarn is straightened. When heated to a temperature above the transition temperature, the yarn returns to a curled shape.
经过上述热处理后的具有形状记忆功能的纤维和 /或纱线可以用于很多种用途, 以下 实施例为利用上述热处理后的纤维和 /或纱线制成的具有形状记忆功能的织物和服装等。  The fiber and/or yarn having the shape memory function after the above heat treatment can be used for a wide variety of purposes, and the following examples are fabrics and garments having a shape memory function made of the heat-treated fibers and/or yarns described above. .
具有形状记忆功能的纤维和纱线制成的织物通过纺织、针织以及非织造技术制成。 非 织造技术包括针刺、 水刺、 熔吹、 缝编、 胶合以及其他方式。  Fabrics made of fibers and yarns with shape memory function are made by weaving, knitting and non-woven techniques. Nonwoven techniques include needling, spunlacing, melt blowing, stitching, gluing, and the like.
表 4  Table 4
结构 经纱密度 纬纱密度 线密度 ( tex )  Structure warp density weft density linear density ( tex )
(根 /10cm ) (根 /10cm ) 经纱 纬纱 (root /10cm) (root /10cm) warp weft
1 灯芯绒 260 220 28 421 corduroy 260 220 28 42
2 斜纹织物 380 226 16x2 24x22 twill fabric 380 226 16x2 24x2
3 平纹织物 236 236 24 243 plain fabrics 236 236 24 24
4 天鹅绒 268 244 28 284 velvet 268 244 28 28
5 粗斜纹棉布 290 188 30 305 Denim 290 188 30 30
6 府绸 400 236 10x2 10x2 表 5 6 Poplin 400 236 10x2 10x2 Table 5
结构 经纱密度(行 纬纱密度(根 线密度 (tex)  Structure Warp density (line weft density (root density (tex))
/5cm) /5 cm)  /5cm) /5 cm)
1 平针织物 40 30 10  1 jersey 40 30 10
2 罗纹针织物 25 15 15  2 ribbed fabric 25 15 15
3 双罗纹针织物 .30 25 12 4 经编针织物 20 30 15 3 double rib knitwear.30 25 12 4 warp knitted fabric 20 30 15
实施例 (9) Example (9)
以棉纱作为经纱和纬纱, 以实施例 (5 ) 中纱线作为绒头经纱制成形状记忆聚合物的 机织灯心绒织物。通过切割绒头, 并在温度高于绒头经纱中的具有形状记忆功能的纤维的 转变温度时进行热处理, 形成灯心绒的绒头并定型。所述灯心绒的绒头具有更好的抗倒绒 性能。 即使该织物在使用中受压或者出现倒绒现象, 当加热至温度高于转变温度时, 绒头 可以重新竖立起来。  A woven corduroy fabric in which a cotton yarn is used as a warp yarn and a weft yarn, and a yarn of the embodiment (5) is used as a pile warp yarn to form a shape memory polymer. The pile of the corduroy is formed and shaped by cutting the pile and heat-treating at a temperature higher than the transition temperature of the fiber having shape memory function in the pile warp yarn. The corduroy pile has better anti-fall properties. Even if the fabric is pressed or fluffed during use, the pile can be re-erected when heated to a temperature above the transition temperature.
实施例 (10)  Example (10)
采用实施例 (8 ) 中的摩擦纱针织制成紧身内衣, 并在温度高于转变温度时进行定型, 以获得原始尺寸。 该胸衣可以拉伸以易于穿着。 但是前述纤维的转变温度低于体温, 因此 当穿到身上后, 该胸衣逐渐变紧直至恢复到原始尺寸, 以达到理想的束身效果。  The tights were knitted using the friction yarns of Example (8) and shaped at a temperature above the transition temperature to obtain the original size. The bra can be stretched for easy wearing. However, the aforementioned fiber has a transition temperature lower than the body temperature, so that when worn on the body, the bra is gradually tightened until it returns to its original size to achieve the desired body-wound effect.
实施例 (11 )  Example (11)
采用实施例 (1 ) 中的具有形状记忆功能的纤维制成编织物, 并在温度高于转变温度 时进行定型。 所述编织物的形状稳定性和手感均好于由其他合成纤维制成的编织物。  The braid having the shape memory function in Example (1) was used to form a braid, and was set at a temperature higher than the transition temperature. The shape stability and hand of the woven fabric are better than those of other synthetic fibers.
实施例 (12)  Example (12)
将实施例 (4) 中的具有形状记忆功能的纤维和棉纤维粘结制成非织造布。 将所述具 有形状记忆功能的纤维和棉纤维粘合成网,并在温度高于所述具有形状记忆功能的纤维开 始流动的温度时, 利用具有粘性的所述具有形状记忆功能的纤维对该纤维网进行构型。 该 非织造布具有更好的手感, 厚度和长度也更均匀。 生产成本也远远低于用短纤维和形状记 忆聚合物制成的非织造布 (参见 JP特开 No.252353/1986) 。 即使在清洗或者长时间保存 过程中发生了褶皱和变形, 当加热至温度高于转变温度时, 该非织造布也能很容易地回复 到其所记忆的原始形状, 因而非常适合使用在领子、 袖口、 肩部以及胸罩上。  The fiber having the shape memory function and the cotton fiber in Example (4) were bonded to each other to form a nonwoven fabric. Bonding the fiber having the shape memory function and the cotton fiber into a net, and when the temperature is higher than a temperature at which the fiber having the shape memory function starts to flow, using the fiber having the shape memory function having the viscosity The web is configured. The nonwoven has a better hand and a more uniform thickness and length. The production cost is also much lower than that of nonwoven fabrics made of short fibers and shape memory polymers (see JP-A No. 252353/1986). Even if wrinkles and deformation occur during cleaning or long-term storage, the nonwoven fabric can easily return to its original shape when heated to a temperature higher than the transition temperature, so it is very suitable for use in collars, Cuffs, shoulders and bras.
实施例 (13 )  Example (13)
采用实施例 (6) 中的纱线制成机织物。 所述织物原始为平坦状态。 当加热至温度高 于转变温度时, 纱线变成环状纱线且所述织物膨胀变大。 当拉伸成直线并冷却至温度低于 转变温度时, 所述织物回复到原始的平坦外观。  The woven fabric was made using the yarn of Example (6). The fabric was originally in a flat state. When heated to a temperature above the transition temperature, the yarn becomes a looped yarn and the fabric expands. When stretched in a straight line and cooled to a temperature below the transition temperature, the fabric returns to its original flat appearance.
实施例 (14)  Example (14)
采用实施例 (5 ) 中的纱线针织制成定型运动胸衣。 所述胸衣具有大约 30° C 的转变 温度。 运动时, 人的体温高于转变温度, 因此胸衣变紧, 从而对穿着者的身体进行有效的 保护, 但穿着者也不会感觉太紧或不舒服。 A styling sports bra is made by knitting the yarn in the embodiment (5). The bodice has a transition temperature of approximately 30 ° C. When exercising, the human body temperature is higher than the transition temperature, so the bra is tightened, thereby effectively exercising the wearer's body. Protected, but the wearer does not feel too tight or uncomfortable.
实施例 (15 )  Example (15)
以棉纱作为经纱和纬纱, 以实施例 (5 ) 中的包芯纱作为绒头经纱编织制成天鹅绒。 通过切割绒头,并在温度高于绒头经纱中的具有形状记忆功能的纤维的转变温度时进行热 处理, 形成天鵝绒的绒头并定型。 所述天鹅绒的绒头具有很好抗倒绒性能。 即使该天鹅绒 在使用过程中受压或者出现倒绒现象, 当将其加热至温度高于转变温度时, 绒头可以重新 竖立起来。  The cotton yarn was used as the warp yarn and the weft yarn, and the core yarn in the example (5) was woven as a pile warp yarn to form velvet. The velvet pile is formed and shaped by cutting the pile and heat-treating at a temperature higher than the transition temperature of the shape memory function fiber in the pile warp yarn. The pile of the velvet has good anti-falling properties. Even if the velvet is pressed or fluffed during use, the pile can be re-erected when heated to a temperature above the transition temperature.
实施例 (16 )  Example (16)
采用形状记忆聚合物的熔融液形成纺丝成网 (spun-laid) 非织造布。 该形状记忆聚合 物通过喷丝头系统挤入高速空气流或其他气流中。将形成的纱线铺放于支撑件上, 以形成 网, 该支撑件可以是网鼓或者传送带。 抽出挤出的单丝并在成网之前通过辊筒或者高速气 流进行内部定向, 以提高形状记忆非织造布的强度。  A spun-laid nonwoven fabric is formed using a melt of a shape memory polymer. The shape memory polymer is forced into a high velocity air stream or other gas stream by a spinneret system. The formed yarn is laid on a support to form a web, which may be a net drum or a conveyor belt. The extruded monofilament is withdrawn and internally oriented through a roll or high velocity gas stream prior to web formation to increase the strength of the shape memory nonwoven.
实施例 ( 17)  Example (17)
釆用实施例 (4) 中的具有形状记忆功能的纤维形成针刺非织造布。 具有形状记忆功 能的纤维设置于倾斜的网格圈中, 并以交叉的方式平放在较大的网格圈上, 该网格圈沿着 右角方向,向着交叉平放的网的原始方向移动。然后推动带有倒钩的针穿过交叉平放的网, 带动一部分纤维穿过网; 当撤回针时, 纤维保留在其中。  The needle-punched nonwoven fabric was formed using the fibers having the shape memory function in Example (4). The fibers with shape memory function are placed in the inclined grid circle and are placed on the larger grid circle in an intersecting manner, which moves along the right angle direction toward the original direction of the cross-laying web. . The barbed needle is then pushed through the cross-over web to drive a portion of the fiber through the mesh; the fiber remains in it when the needle is withdrawn.
实施例 (18 )  Example (18)
由两层具有形状记忆功能的织物形成具有形状记忆功能的织物,该具有形状记忆功能 的织物包括带有稀松织物基底的实施例 (16 ) 中的纺丝成网非织造布和实施例 (17) 中的 针刺网以及稀松织物成分等。  A fabric having a shape memory function is formed from two layers of fabric having a shape memory function, the fabric having a shape memory function comprising a spunlaid nonwoven fabric of the embodiment (16) with a scrim substrate and an embodiment (17) Acupuncture nets and slender fabric components.

Claims

权利要求 Rights request
1 . 一种具有形状记忆功能的纺织品的处理方法, 包括: 对处于松弛状态或紧张状态 的所述纺织品进行 1~15分钟热处理, 以去除内部应力。  What is claimed is: 1. A method of treating a textile having a shape memory function, comprising: heat treating the textile in a relaxed state or a tension state for 1 to 15 minutes to remove internal stress.
2. 根据权利要求 1所述的处理方法, 其中, 所述热处理为将处于松弛状态或紧张状 态的所述纺织品置于容器中蒸 3 ~15分钟。  The processing method according to claim 1, wherein the heat treatment is to place the textile in a relaxed state or a tension state in a container for steaming for 3 to 15 minutes.
3. 根据权利要求 1所述的处理方法, 其中, 所述热处理为: 将处于松弛状态或紧张 状态的所述纺织品置于烘箱或压烫机中, 控制温度为 60~175° C烘烤 1~10分钟。  The processing method according to claim 1, wherein the heat treatment is: placing the textile in a relaxed state or a tension state in an oven or a press, and controlling the temperature to be 60 to 175 ° C baking 1 ~10 minutes.
4. 根据权利要求 1所述的处理方法, 其中, 所述纺织品为釆用形状记忆聚氨酯通过 干法紡丝、 湿法纺丝、 熔体纺丝或者反应纺丝制成的纤维。  The processing method according to claim 1, wherein the textile is a fiber produced by dry spinning, wet spinning, melt spinning or reactive spinning of a shape memory polyurethane.
5. 根据权利要求 4所述的处理方法, 其中, 所述纤维包括单根长丝, 多根长丝、 以 及人造短纤。  The processing method according to claim 4, wherein the fiber comprises a single filament, a plurality of filaments, and an artificial staple fiber.
6. 根据权利要求 1所述的处理方法, 其中, 所述纺织品为全部或部分采用具有形状 记忆功能的纱线。  The processing method according to claim 1, wherein the textile is a yarn having a shape memory function in whole or in part.
7. 根据权利要求 1所述的处理方法, 其中, 所述纺织品为全部或部分采用具有形状 记忆功能的织物。  The processing method according to claim 1, wherein the textile is a fabric having a shape memory function in whole or in part.
8.一种具有形状记忆功能的紡织品,其由如权利要求 1、 2或 3所述的方法处理而成。 A textile having a shape memory function which is treated by the method of claim 1, 2 or 3.
9. 如权利要求 8 所述的具有形状记忆功能的纺织品, 其中, 该纺织品的定型率为 95-99%, 回复率为 90~99%。 9. The textile having a shape memory function according to claim 8, wherein the textile has a setting rate of 95 to 99% and a recovery ratio of 90 to 99%.
10. 如权利要求 8所述的具有形状记忆功能的纺织品, 其中, 该纺织品为纤维。  10. The textile having a shape memory function according to claim 8, wherein the textile is a fiber.
11 . 如权利要求 8所述的具有形状记忆功能的纺织品, 其中, 该纺织品为纱线。The textile having a shape memory function according to claim 8, wherein the textile is a yarn.
12. 如权利要求 8所述的具有形状记忆功能的纺织品, 其中, 该纺织品为织物。 12. The textile having shape memory function according to claim 8, wherein the textile is a fabric.
PCT/CN2007/070172 2007-06-25 2007-06-25 A textile with shape memory function and treatment process thereof WO2009000128A1 (en)

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