CN103093693A - Color anti-fake or temperature indication label and color anti-fake or temperature indication method - Google Patents
Color anti-fake or temperature indication label and color anti-fake or temperature indication method Download PDFInfo
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- CN103093693A CN103093693A CN2013100452659A CN201310045265A CN103093693A CN 103093693 A CN103093693 A CN 103093693A CN 2013100452659 A CN2013100452659 A CN 2013100452659A CN 201310045265 A CN201310045265 A CN 201310045265A CN 103093693 A CN103093693 A CN 103093693A
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Abstract
The invention relates to a technology of anti-fake or temperature indication by means of shape memory effect of a thermotropic shape memory polymer, in particular to color anti-fake or temperature indication label and a color anti-fake or temperature indication method. The color anti-fake or temperature indication label comprises a base body made of thermotropic shape memory polymer materials. At least one position on the base body is provided with predeformation capable of recovering primary form after being heated, and the surface of the predeformation is provided with a film layer capable of changing color or transparency under a stress or a strain influence. Because the shape of the thermotropic shape memory polymer changes after being heated, a stress / strain induction film on the surface changes color or transparency, and therefore observability of temperature indication or authenticity distinguishing is effectively improved and accuracy of judgment is improved.
Description
Technical field
The present invention relates to a kind of SME of thermal shape memory polymkeric substance that utilizes and carry out technology false proof or the temperature indication, specifically a kind of color-changing anti-counterfeit or temperature indicating label and color-changing anti-counterfeit or temperature indicating means.
Background technology
The thermal shape memory polymkeric substance because of its distinctive SME to temperature sense, is the ideal chose for temperature indication and false proof indication.At present, the existing SME of shape-memory polymer that utilizes carries out technology false proof or the temperature indication, as Chinese patent CN 101826278 B, 200410051383,201010125727, CN 101916528 B, CN 102024379 A, CN 201745882 U, CN 201838256 U, CN 101877196 A and Chinese patent application 201210480325.5,201210512085.2,201210206952.X etc.These patents all adopt naked eyes directly observe heating before and after the pattern of polymkeric substance change to carry out false proof or the temperature indication, although feasible, the indication result is simple and clear not, change hour when pattern especially, be difficult for differentiating by naked eyes, affect practical effect.
Summary of the invention
Technical matters to be solved by this invention is, provides a kind of and can pass through change color, makes the indication of false proof indication or temperature more be easy to false proof or temperature indicating label and the false proof or temperature indicating means of observing.
Color-changing anti-counterfeit of the present invention or temperature indicating label include the matrix of a thermal shape memory polymeric material, and matrix surface has the predeformation that at least one place can resile through heating; Have on the surface of predeformation one deck can be because of stress or effects of strain variable color or change the film of transparency.
Described matrix surface has many places predeformation, and every place predeformation has its corresponding shape recovery temperature or temperature range.
Described optically variable films is that the membraneous material of change color can occur under stress or effects of strain a class, for example open source literature " development of stress color-changing polyurethane synthetic leather " (is seen the 16th the 2nd phase of volume of " polyurethane industrial " calendar year 2001, a kind of stress optically variable films of PU leather material pp17-19) just is provided.In addition, the technical report Liquid crystal of official (Technical Report AFML-TR-71-20, p77) that the units such as US Air aerodynamic force laboratory provided in 1971 has also put down in writing a kind of stress effect and the liquid crystal material of change color has occured.
Described predeformation is indenture, convex epirelief, gauffer, flatten one or more in this several types.
Color-changing anti-counterfeit of the present invention or temperature indicating means are: take the thermal shape memory polymeric material as matrix, form at least one place on its surface and can recover through heating the predeformation of shape, afterwards on the plated surface of predeformation or cover last layer can be because of stress or effects of strain variable color or change the film of transparency, form indicating label; Indicating label is related with observed matter, after temperature variation, according to the variation of label surface color pattern, judge the true and false of the measured object that is associated or the maximum temperature that measured object experiences.
The present invention utilizes the SME of thermal shape memory polymkeric substance to produce change of shape, thereby cause its surperficial film generation color or the variation of transparency, to reach the observability of effectively improving temperature indication or true and false resolution, improve Accuracy of Judgement.
Description of drawings
Fig. 1 is that preparation and the pattern in use procedure of the false proof indicating label of the embodiment of the present invention one changes schematic diagram.
Fig. 2 is that preparation and the pattern in use procedure of the temperature indicating label of the embodiment of the present invention two changes schematic diagram.
Embodiment
With specific embodiment, the present invention is further elaborated with reference to the accompanying drawings.Protection scope of the present invention is not limited by specific embodiment, is as the criterion with claims.In addition, with under the prerequisite of technical solution of the present invention, within any change that those of ordinary skills made for the present invention easily realize or change all will fall into claim scope of the present invention.
Embodiment one: utilize the variation of thermal shape memory effect initiated polymerization thing material surface color to carry out preparation and the indicating means of the label of false proof indication.
Indicating label is with diameter 20 mm, and the circular epoxy shape-memory polymer of thickness 2 mm is matrix, and its glass transition temperature is 95 ℃.
In manufacture process, the epoxy polymer solution before solidifying is injected mould be cured processing, mold cavity surfaces is just like two squares and two oval-shaped projections shown in Fig. 1 (a); Obtain the circular epoxy polymeric matrix of surface topography as shown in Fig. 1 (a) after curing; Cooling after prepared epoxy shape-memory polymer matrix is heated to 115 ℃, and respectively oval projection and square protrusions are flattened under different temperatures; Then, cover the stress optically variable films of one deck 100 micron thickness at label surface, anti-counterfeiting mark prepares complete, as shown in Fig. 1 (b).
When this label is used as antifalsification label, be placed in the boiling water of 100 ℃ after heating, the square protrusions shape that is driven plain is recovered, and the rear variable color that is stretched of the stress optically variable films on it is as shown in Fig. 1 (c); After label was heated with lighter is further, the oval part that is driven plain also restored to the original state, and covering stress optically variable films thereon is also because of the stretching variable color, as shown in Fig. 1 (d).Can judge according to the progressively change procedure of color pattern whether indicated article are genuine piece.
Embodiment two:Preparation and the indicating means of the label of temperature indication carried out in the variation that utilizes heat to drive SME initiated polymerization thing material surface color.
Take the polyurethane material that is of a size of 10 mm * 3 mm * 1 mm as matrix, its glass transition temperature is 30 ℃.Under 20 ℃, at matrix surface extrusion different three circular impressions of a, b, c of size as shown in Fig. 2 (a), its corresponding shape recovery temperature is respectively 25 ℃, 30 ℃ and 35 ℃.Then, cover the strain colour-changing liquid crystal of one deck 50 micron thickness at matrix surface, the preparation of temperature sign is complete.
Label is placed in the packing of target item or directly is pasted on article surface.
If there is the color pattern as shown in Fig. 2 (b), represent that namely the shape recovery has occured impression a on label, the strain colour-changing liquid crystal on it thereby change color illustrates that maximum temperature that target item experiences is between 25 ℃ and 30 ℃.
Claims (6)
1. a color-changing anti-counterfeit or temperature indicating label is characterized in that: include the matrix of a thermal shape memory polymeric material, matrix surface has the predeformation that at least one place can resile through heating; Have on the surface of predeformation one deck can be because of stress or effects of strain variable color or change the film of transparency.
2. color-changing anti-counterfeit according to claim 1 or temperature indicating label, it is characterized in that: described matrix surface has many places predeformation, and every place predeformation has its corresponding shape recovery temperature or temperature range.
3. color-changing anti-counterfeit according to claim 1 or temperature indicating label is characterized in that: described predeformation is indenture, convex epirelief, gauffer, flatten one or more in this several types.
4. a color-changing anti-counterfeit or temperature indicating means, is characterized in that: take the thermal shape memory polymeric material as matrix, form at least one place on its surface and can recover through heating the predeformation of shape; Afterwards on the plated surface of predeformation or cover last layer can be because of stress or effects of strain variable color or change the film of transparency, form indicating label; Indicating label is related with observed matter, after temperature variation, according to the variation of label surface color pattern, judge the true and false of the measured object that is associated or the maximum temperature that measured object experiences.
5. color-changing anti-counterfeit according to claim 4 or temperature indicating means, it is characterized in that: described matrix surface has many places predeformation, and every place predeformation has its corresponding shape recovery temperature or temperature range.
6. color-changing anti-counterfeit according to claim 4 or temperature indicating means is characterized in that: predeformation selects indenture, convex epirelief, gauffer, flatten one or more in this several types.
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| CN2013100452659A CN103093693A (en) | 2013-02-05 | 2013-02-05 | Color anti-fake or temperature indication label and color anti-fake or temperature indication method |
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| CN2013100452659A CN103093693A (en) | 2013-02-05 | 2013-02-05 | Color anti-fake or temperature indication label and color anti-fake or temperature indication method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015131416A1 (en) * | 2014-03-03 | 2015-09-11 | 深圳九星印刷包装集团有限公司 | Variable temperature vaccine label and preparation method thereof |
| CN104930302A (en) * | 2015-05-14 | 2015-09-23 | 江苏大学 | Thermal insulation protective film and application thereof |
| CN106530948A (en) * | 2016-12-07 | 2017-03-22 | 北京华胜天成科技股份有限公司 | Cabinet equipment label |
| CN106742550A (en) * | 2017-03-24 | 2017-05-31 | 哈尔滨工业大学 | A kind of anti-fake bottle based on shape memory |
| CN106782040A (en) * | 2016-12-28 | 2017-05-31 | 四川师范大学 | A kind of false proof paster and preparation method thereof |
| CN109192058A (en) * | 2018-09-13 | 2019-01-11 | 福建省张氏新材料科技有限公司 | A kind of thermal transfer trade mark and its production technology with stress discoloration effect |
| CN110016219A (en) * | 2019-05-09 | 2019-07-16 | 青岛维思顿智能新材料有限公司 | Indicate the temperature sensing color changing shape memory material and preparation method thereof of deformation temperature |
| CN110223596A (en) * | 2019-07-09 | 2019-09-10 | 深圳大学 | Antifalsification label based on stress irradiance |
| CN111259035A (en) * | 2018-04-23 | 2020-06-09 | 陈浩能 | Storage device and measuring device for identifying program |
| CN112991906A (en) * | 2021-02-25 | 2021-06-18 | 江苏大学 | Temperature label based on Moire effect, preparation method and temperature indication method thereof |
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| CN1587001A (en) * | 2004-09-08 | 2005-03-02 | 章一叶 | Anti-fake method for product package |
| WO2005120855A1 (en) * | 2004-06-10 | 2005-12-22 | De La Rue International Limited | Improvements in security devices |
| CN101826278A (en) * | 2010-03-30 | 2010-09-08 | 广州市曼博瑞材料科技有限公司 | Method for anti-counterfeiting product package |
| CN102706469A (en) * | 2012-06-21 | 2012-10-03 | 黄为民 | Temperature indicating method, temperature indicating tag and manufacturing method of temperature indicating tag |
| US20120279101A1 (en) * | 2009-11-18 | 2012-11-08 | Thorsten Pretsch | Security label for identifying products |
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- 2013-02-05 CN CN2013100452659A patent/CN103093693A/en active Pending
Patent Citations (5)
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| WO2005120855A1 (en) * | 2004-06-10 | 2005-12-22 | De La Rue International Limited | Improvements in security devices |
| CN1587001A (en) * | 2004-09-08 | 2005-03-02 | 章一叶 | Anti-fake method for product package |
| US20120279101A1 (en) * | 2009-11-18 | 2012-11-08 | Thorsten Pretsch | Security label for identifying products |
| CN101826278A (en) * | 2010-03-30 | 2010-09-08 | 广州市曼博瑞材料科技有限公司 | Method for anti-counterfeiting product package |
| CN102706469A (en) * | 2012-06-21 | 2012-10-03 | 黄为民 | Temperature indicating method, temperature indicating tag and manufacturing method of temperature indicating tag |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015131416A1 (en) * | 2014-03-03 | 2015-09-11 | 深圳九星印刷包装集团有限公司 | Variable temperature vaccine label and preparation method thereof |
| CN104930302A (en) * | 2015-05-14 | 2015-09-23 | 江苏大学 | Thermal insulation protective film and application thereof |
| CN106530948A (en) * | 2016-12-07 | 2017-03-22 | 北京华胜天成科技股份有限公司 | Cabinet equipment label |
| CN106782040B (en) * | 2016-12-28 | 2019-11-26 | 四川师范大学 | A kind of anti-fake paster and preparation method thereof |
| CN106782040A (en) * | 2016-12-28 | 2017-05-31 | 四川师范大学 | A kind of false proof paster and preparation method thereof |
| CN106742550A (en) * | 2017-03-24 | 2017-05-31 | 哈尔滨工业大学 | A kind of anti-fake bottle based on shape memory |
| CN111259035A (en) * | 2018-04-23 | 2020-06-09 | 陈浩能 | Storage device and measuring device for identifying program |
| CN111259035B (en) * | 2018-04-23 | 2024-01-12 | 陈浩能 | Storage device |
| CN109192058A (en) * | 2018-09-13 | 2019-01-11 | 福建省张氏新材料科技有限公司 | A kind of thermal transfer trade mark and its production technology with stress discoloration effect |
| CN110016219A (en) * | 2019-05-09 | 2019-07-16 | 青岛维思顿智能新材料有限公司 | Indicate the temperature sensing color changing shape memory material and preparation method thereof of deformation temperature |
| CN110223596A (en) * | 2019-07-09 | 2019-09-10 | 深圳大学 | Antifalsification label based on stress irradiance |
| CN110223596B (en) * | 2019-07-09 | 2022-02-22 | 深圳大学 | Anti-counterfeit label based on stress luminescence |
| CN112991906A (en) * | 2021-02-25 | 2021-06-18 | 江苏大学 | Temperature label based on Moire effect, preparation method and temperature indication method thereof |
| CN112991906B (en) * | 2021-02-25 | 2022-08-23 | 江苏大学 | Temperature label based on Moire effect, preparation method and temperature indication method thereof |
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Application publication date: 20130508 |