CN102968928B - Multi-layer anti-fake label and manufacture method thereof and multi-layer anti-fake indicating means - Google Patents
Multi-layer anti-fake label and manufacture method thereof and multi-layer anti-fake indicating means Download PDFInfo
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- CN102968928B CN102968928B CN201210480325.5A CN201210480325A CN102968928B CN 102968928 B CN102968928 B CN 102968928B CN 201210480325 A CN201210480325 A CN 201210480325A CN 102968928 B CN102968928 B CN 102968928B
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Abstract
The present invention relates to false proof instruction technology, specifically a kind of thermal shape memory effect based on polymer, differentiate multi-layer anti-fake label and the manufacture method thereof of authenticity of products by the progressively change of its pattern, and apply the multi-layer anti-fake indicating means of this multi-layer anti-fake label. The multi-layer anti-fake label of the present invention has the matrix of thermal shape memory polymeric material, matrix have in the process of one or many heating, the multiple predeformation formed under the different temperatures more than glass transition or melting transition initial temperature of this material. The antifalsification label simple in construction of the present invention, volume are little, cost is low and are difficult to copy; The method for anti-counterfeit of the present invention is simple and easy to do, cost is low, be difficult to imitate.
Description
Technical field
The present invention relates to false proof instruction technology, specifically a kind of thermal shape memory effect based on polymer, differentiate multi-layer anti-fake label and the manufacture method thereof of authenticity of products by the progressively change of its pattern, and apply the multi-layer anti-fake indicating means of this multi-layer anti-fake label.
Background technology
Along with increasing tradition anti-counterfeiting technology (such as laser trademark, bar code and pattern etc.) is grasped by the external world and replicated, cause that product fraud becomes day by day serious social problem. Research and develop new anti-counterfeiting technology and become current exigence.
A lot of polymer have significant shape memory effect, it is possible to the change of perception environment, and respond in the way of morphology change (restPosing). At present, thermic is a kind of type of drive that polymer shape memory effect is the most general. Its principle is to utilize shape-memory polymer to recover to bring out shape for the sensitivity characteristic of temperature.
This feature utilizing thermal shape memory polymer can manufacture false proof instruction product. The false proof indicating means of current shape-memory polymer (CN101826278B, CN102024379A, 200410051383,201010125727, CN101916528B, CN102024379A, CN201745882U, CN201838256U, CN101877196A), be utilize the morphology change before and after shape-memory polymer one-time heating to carry out anti-counterfeiting detection. The technical difficulty of this method is limited, it is easy to imitated, thus being prone to lose false proof function.
Recent study finds, by suitable pre-treatment, thermal shape memory polymer can add at one or many to be hankered deformation and progressively recover, and corresponding pattern progressively changes. Its basic pre-treatment method is: through one or many, the polymer of certain size and shape is heated to more than the initial temperature of its glass transition (or melting transition), after making its pattern that a series of change occurs at different temperatures, it is cooled to below the end temp of below the initial temperature of glass transition or solidification transformation (i.e. predeformation process). Predeformation can be overlapping, it is also possible to not overlapping. During heated shape later recovers, within specified temperatures, the corresponding predeformation of polymer can progressively be recovered, thus pattern correspondingly progressively changes. Still do not utilize antifalsification label product and the method for anti-counterfeit of this multi-level predeformation and recovery characteristics at present.
Summary of the invention
One to be solved by this invention technical problem is that, utilizes thermal shape memory polymeric material self, it is provided that a kind of simple in construction, volume are little, cost is low and are difficult to the manufacture method of multi-layer anti-fake label and this multi-layer anti-fake label copied.
To be solved by this invention another technical problem is that, utilizes the thermal shape memory characteristic of thermal shape memory polymer, it is provided that one can indicate that the measurand true and false, and simple and easy to do, cost is low, be difficult to the multi-layer anti-fake indicating means that imitates.
The multi-layer anti-fake label of the present invention has the matrix of thermal shape memory polymeric material, matrix have in the process of one or many heating, the multiple predeformation implemented under the different temperatures more than glass transition or melting transition initial temperature of this material. Described predeformation is the indentation trace to matrix, belling trace, crimped wrinkle or one or more combinations flattening in deformation.
The multiple predeformation formed under described different temperatures are the nonoverlapping predeformation formed in the zones of different of matrix.
The multiple predeformation formed under described different temperatures can also be the predeformation of the overlap formed at the same area of matrix.
The material of described matrix has one or more glass transition or melting transition characteristic, and described multiple predeformation are the predeformation implemented on one or more glass transitions or melting transition initial temperature.
Permanent set amount after matrix predeformation is higher than 5%, and the shape recovery ratio after recovery is higher than 5%.
Described thermal shape memory polymer is straight polymer or polymer matrix composite. Packing material in described polymer matrix composite is powder filled material or fiber-filled material.
The manufacture method of the multi-layer anti-fake label of the present invention is: select thermal shape memory polymer as the matrix of antifalsification label according to temperature requirement; Matrix is heated through one or many, in one or many heating process, under the series of temperature more than glass transition or melting transition initial temperature of material, different parts or same area at matrix produce multiple deformation, it is cooled to below its glass transition initial temperature or solidification changes below end temp, form the antifalsification label with multiple predeformation; Each predeformation has the shape recovery temperature of correspondence.
The multi-layer anti-fake indicating means of the present invention is to be associated with needing false proof product by above-mentioned multi-layer anti-fake label, when judging authenticity of products, by multi-layer anti-fake label being carried out the heating of a series of transformation temperature, multiple predeformation is made to recover one by one, observe the process and result recovered, in this, as the foundation judging the true and false.
Described multi-layer anti-fake label is in the packing material being placed in by multi-layer anti-fake label and needing false proof product with the method needing false proof product to be associated.
Described multi-layer anti-fake label can also be placed in multi-layer anti-fake label to be attached to need on false proof product or its packing material with the method needing false proof product to be associated.
Described multi-layer anti-fake label can also be that with needing false proof product or its packing material, multi-layer anti-fake label is made as one with the method needing false proof product to be associated.
The present invention compared with prior art, has the advantage that effect:
1, antifalsification label provided by the present invention, manufacture method and false proof indicating means, without circuit or mechanical structure device, it is based on the performance (the thermal shape memory polymer sensitivity characteristic to temperature) of material itself, antiforge function is realized, it is easy to operation, reliable results by the change of its pattern.
2, antifalsification label manufacture method provided by the present invention, first carries out pre-treatment to shape-memory polymer, is realized the function of the multi-layer anti-fake instruction of label afterwards by the progressively change of its pattern. The size of the permanent set after predeformation can be nanoscale to decimeter grade. Its technology processing good confidentiality, copys difficulty big.
3, antifalsification label provided by the present invention, can as required, and by selecting different polymer, the antifalsification label making difformity and size, different predeformation mode realizes, it is achieved mode is flexible.
4, thermal shape memory polymer used in the present invention can select from existing polymer, it is possible to decrease cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the multi-layer anti-fake label manufacturing process with not overlapping predeformation of the embodiment of the present invention two;
Fig. 2 is the schematic diagram of the multi-layer anti-fake label manufacturing process with overlapping predeformation of the embodiment of the present invention three;
Fig. 3 is the false proof instruction process schematic of the multi-layer anti-fake label with not overlapping predeformation of the embodiment of the present invention four;
Fig. 4 is the false proof instruction process photo of the multi-layer anti-fake label with overlapping predeformation of the embodiment of the present invention five.
Detailed description of the invention
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. It addition, with under the premise of technical solution of the present invention, any change or change that those of ordinary skill in the art made for the present invention easily realize fall within scope of the presently claimed invention.
Embodiment one: a kind of multi-layer anti-fake indicating means, it utilizes the thermal shape memory characteristic of shape-memory polymer, after thermodynamics pre-treatment, in progressively heating process, progressively there is respective change in the pattern of polymer, utilizes this characteristic to make label to differentiate the true and false of article.
The thermal shape memory effect of the thermal shape memory polymer of indication is significant: polymer permanent set amount after thermodynamics is processed is higher than 5%; Shape recovery ratio is higher than 5%. Described thermal shape memory polymer is straight polymer or polymer matrix composite.
Using the thermal shape memory polymer of the certain size matrix as label, under the initial temperature higher than its glass transition or melting transition, carry out repeatedly pre-treatment, make antifalsification label finished product. One or more combinations in cylindrically shaped, spherical, flat board, thin film, the wire of multi-layer anti-fake label, bar shaped.
Predeformation is the indentation trace to label substrate, belling trace, crimped wrinkle or one or more combinations flattening in deformation.According to using condition requirement, the size of the permanent set of predeformation can from nanoscale to decimeter grade. Multi-layer anti-fake label has multiple overlapping or nonoverlapping predeformation. Each predeformation has corresponding shape recovery temperature. Above-mentioned multi-layer anti-fake label is associated with needing false proof product, when judging authenticity of products, by multi-layer anti-fake label carries out the heating of a series of transformation temperature, multiple predeformation is made to recover one by one, observe the process and result recovered, in this, as the foundation judging the true and false.
Described multi-layer anti-fake label can be in the packing material being placed in by multi-layer anti-fake label and needing false proof product with the method needing false proof product to be associated; Can also be multi-layer anti-fake label is placed in or is attached on the false proof product of needs or its packing material; Can also is that and multi-layer anti-fake label is made as one with needing false proof product or its packing material.
Embodiment two: with epoxy polymer for matrix, preparation has the process of the antifalsification label of not overlapping predeformation as it is shown in figure 1, include following processing step:
Label is heated to 70 DEG C;
Impression (impression maximum gauge is 5mm, and the degree of depth is 2mm, and each indent spacers is 10mm) as shown in Fig. 1 (b) is extruded on its surface;
It is cooled to 60 DEG C, extrudes more impression in its surface zones of different;
It is cooled to room temperature. Obtain the finished product label as shown in Fig. 1 (c).
Embodiment three: with epoxy polymer for matrix, preparation has the process of the antifalsification label of overlapping predeformation as in figure 2 it is shown, include following processing step:
Label is heated to 70 DEG C;
The mould using special shape extrudes the first impression as shown in Fig. 2 (b) on its surface;
Being cooled to 60 DEG C, the mould using another kind of pattern instead extrudes the second impression as shown in Figure 2 (c) at the same area;
It is down to room temperature, obtains label finished product as shown in Figure 2 (d) shows.
Embodiment four: be of a size of the multi-layer anti-fake label of the polythene material of 10mm �� 5mm �� 1mm, the existing projection pattern (single protrusion diameter 0.5mm, high 0.2mm, bump pitch 1mm) as shown in Fig. 3 (e) in its surface before non-predeformation. Label is placed in the environment of 25 DEG C. In being cooled to-5 DEG C of processes, progressively projection is flattened at different temperature respectively. In applanation process of lowering the temperature at this, pattern corresponding respectively is followed successively by shown in (e), (d), (c) in Fig. 3, (b) and (a). The label finished product prepared is such as shown in Fig. 3 (a).
When using this label to differentiate article genuine-fake, being taken out by label and be placed under the environment being about 30 DEG C from cold storage environment, the temperature of label slowly raises. In the process, if label surface progressively occur as shown in Figure 3 by a series of morphology change (can be observed by magnifier) of (a) to (e), so that it may conclude that these article are genuine piece.
Embodiment five: the multi-layer anti-fake label finished product of styrene materials, it is of a size of 20mm �� 20mm �� 3mm. At different temperatures, the two sides using coin is overlapped impressing formation predeformation at the same position of label. Label finished product is as shown in Figure 4 (a).
When using this label to differentiate article genuine-fake, being put in warm water (more than 60 DEG C), as shown in Figure 4 (b), the pattern in the coin face that finished product label showed originally thickens, and the pattern of coin another side starts to manifest.
After being put into boiling water, then the pattern loss in original coin face, surface, only shows the pattern of coin another side, as shown in Figure 4 (c).
Continue heating with lighter, then all of pattern of label surface is wholly absent, as shown in Fig. 4 (d).
According to the above-mentioned change of label, then can differentiate that article indicated by this label are genuine piece.
Claims (6)
1. a multi-layer anti-fake label, it has the matrix of thermal shape memory polymeric material, it is characterized in that: matrix has in heating for multiple times process, the multiple predeformation implemented under the different temperatures more than glass transition or melting transition initial temperature of this material; Described multiple predeformation are the predeformation implemented on a glass transition or melting transition initial temperature; The multiple predeformation formed under described different temperatures are the predeformation of the overlap formed at the same area of matrix.
2. multi-layer anti-fake label according to claim 1, is characterized in that: described predeformation is the indentation trace to matrix, belling trace, crimped wrinkle or one or more combinations flattening in deformation.
3. multi-layer anti-fake label according to claim 1, is characterized in that: the permanent set amount after matrix predeformation is higher than 5%, and the shape recovery ratio after recovery is higher than 5%.
4. multi-layer anti-fake label according to claim 1, is characterized in that: described thermal shape memory polymer is straight polymer or polymer matrix composite; Packing material in described polymer matrix composite is powder filled material or fiber-filled material.
5. a manufacture method for the described multi-layer anti-fake label of one of claim 1-4, is characterized in that: select thermal shape memory polymer as the matrix of antifalsification label according to temperature requirement; By matrix through heating for multiple times, in heating for multiple times process, under series of temperature more than a glass transition or melting transition initial temperature of material, same area at matrix produces multiple predeformation, it is cooled to below its glass transition initial temperature or solidification changes below end temp, form the antifalsification label with multiple predeformation; Each predeformation has the shape recovery temperature of correspondence.
6. a multi-layer anti-fake indicating means, it is characterized in that: be that the multi-layer anti-fake label of one of claim 1-4 is associated with needing false proof product, when judging authenticity of products, by multi-layer anti-fake label being carried out the heating of a series of transformation temperature, multiple predeformation is made to recover one by one, observe the process and result recovered, in this, as the foundation judging the true and false.
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| CN108752580B (en) * | 2018-05-24 | 2019-08-13 | 安徽农业大学 | A kind of double anti-forge material, antifalsification label and preparation method and false-proof detection method |
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| CN1587001A (en) * | 2004-09-08 | 2005-03-02 | 章一叶 | Anti-fake method for product package |
| CN101877196A (en) * | 2010-03-12 | 2010-11-03 | 广州市曼博瑞材料科技有限公司 | Method for manufacturing a shape memory anti-counterfeiting mark |
| CN102024379A (en) * | 2010-09-30 | 2011-04-20 | 广州市曼博瑞材料科技有限公司 | Manufacturing method of shape memory anti-counterfeiting mark |
| CN101826278B (en) * | 2010-03-30 | 2012-04-18 | 广州市曼博瑞材料科技有限公司 | Method for anti-counterfeiting product package |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008055870A1 (en) * | 2008-10-31 | 2010-05-06 | Gkss-Forschungszentrum Geesthacht Gmbh | Multiphase polymer network with triple-shape properties and shape memory effect |
| DE102009053808B4 (en) * | 2009-11-18 | 2014-09-11 | Bundesanstalt für Materialforschung und -Prüfung (BAM) | Security label for marking goods |
| CN102706469B (en) * | 2012-06-21 | 2016-08-03 | 黄为民 | Temperature indicating means and temperature indicating labels and the manufacture method of temperature indicating labels |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587001A (en) * | 2004-09-08 | 2005-03-02 | 章一叶 | Anti-fake method for product package |
| CN101877196A (en) * | 2010-03-12 | 2010-11-03 | 广州市曼博瑞材料科技有限公司 | Method for manufacturing a shape memory anti-counterfeiting mark |
| CN101826278B (en) * | 2010-03-30 | 2012-04-18 | 广州市曼博瑞材料科技有限公司 | Method for anti-counterfeiting product package |
| CN102024379A (en) * | 2010-09-30 | 2011-04-20 | 广州市曼博瑞材料科技有限公司 | Manufacturing method of shape memory anti-counterfeiting mark |
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