CN111455722A - Application of watermark paper in preparation of thermal sensitive paper, watermark thermal sensitive paper and preparation method thereof - Google Patents
Application of watermark paper in preparation of thermal sensitive paper, watermark thermal sensitive paper and preparation method thereof Download PDFInfo
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- CN111455722A CN111455722A CN202010270454.6A CN202010270454A CN111455722A CN 111455722 A CN111455722 A CN 111455722A CN 202010270454 A CN202010270454 A CN 202010270454A CN 111455722 A CN111455722 A CN 111455722A
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- watermark
- paper
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- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 36
- 239000011248 coating agent Substances 0.000 claims description 29
- 238000000576 coating method Methods 0.000 claims description 29
- 239000011247 coating layer Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 238000005286 illumination Methods 0.000 abstract description 2
- 230000000717 retained effect Effects 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- SWGJCIMEBVHMTA-UHFFFAOYSA-K trisodium;6-oxido-4-sulfo-5-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-2-sulfonate Chemical compound [Na+].[Na+].[Na+].C1=CC=C2C(N=NC3=C4C(=CC(=CC4=CC=C3O)S([O-])(=O)=O)S([O-])(=O)=O)=CC=C(S([O-])(=O)=O)C2=C1 SWGJCIMEBVHMTA-UHFFFAOYSA-K 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
- D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
Landscapes
- Paper (AREA)
Abstract
The invention provides application of watermark paper in preparation of thermal paper, watermark thermal paper and a preparation method thereof. The invention further processes the watermark paper as the base paper of the thermal paper to obtain the thermal paper, so that the prepared paper has both anti-counterfeiting and thermal copying functions, and still has the thermal anti-counterfeiting effect after the thermal paper is imaged by heat transfer under the action of a printer or external force. The watermark can be permanently retained on the paper surface, and compared with the degradation problem of printing anti-counterfeiting on the thermal sensitive paper, the thermal sensitive paper can have a long-term anti-counterfeiting special effect. Under normal illumination conditions (daytime or under light), the watermark anti-counterfeiting image-text can be seen indoors and outdoors.
Description
Technical Field
The invention relates to the field of paper manufacturing, in particular to application of watermark paper in preparation of thermal sensitive paper, anti-counterfeiting watermark thermal sensitive paper and a preparation method thereof.
Background
At present, the thermal paper is increasingly widely used in production and life, such as terminal POS, bank counters, tickets, labels and the like. At present, the thermal paper generally does not have the anti-counterfeiting function, and if the paper product of the thermal paper is used as the anti-counterfeiting requirement, the conventional method is to perform post-treatment on the finished product made of the thermal paper, such as printing a mark or sticking a label on the thermal paper, and the method has low mass production efficiency due to the process problem.
In addition, the thermal paper is not suitable for long-term storage, and after a certain period of time, the anti-counterfeiting mark on the thermal paper can be degraded, so that the product loses the anti-counterfeiting function. Meanwhile, the anti-counterfeiting function of the mode can not meet the requirements of batch rapid production, environmental protection and the like, so that the use of the thermal sensitive paper is limited.
Patent document CN202742838U discloses a forgery-preventing thermal paper. By adjusting the types of the leuco dyes, various colors such as blue, purple red, black and the like can be respectively displayed, product individuation can be realized, and the leuco dyes have a certain anti-counterfeiting function. The back coating can become colorless through the heating mode, perhaps shows the colour different with the original colour of back coating, and when stopping heating, the back coating resumes original colour again gradually to reach the mesh of realizing distinguishing true and false. The disadvantages of this approach are: 1. the anti-counterfeiting mode is mainly color-variable, strong individuation but limited batch production; 2. 2, only in color anti-counterfeiting, without personalized graphics and texts, the application range is limited; 3. if the printing and other processes are carried out at the later stage, the requirement on the printing condition is very high, and the anti-counterfeiting effect is discounted.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide application of watermark paper in preparation of thermal sensitive paper, the watermark thermal sensitive paper and a preparation method thereof.
The invention provides a use of watermark paper in preparing heat-sensitive paper, which comprises the following steps: and (3) taking the watermark paper as the base paper of the thermal sensitive paper, and coating a thermal sensitive coating on the back of the watermark surface of the watermark paper to obtain the watermark thermal sensitive paper.
According to the invention, the watermark thermal paper comprises: watermark base paper and a heat-sensitive coating;
wherein, the watermark body paper is multilayer structure, includes: a supporting layer and a watermark layer;
the watermark layer is positioned on the bottom surface of the support layer and is used as the bottom layer of the multilayer structure, and the heat-sensitive coating is arranged on the top surface of the multilayer structure;
and a watermark area is arranged at the preset position of the watermark layer or on the whole watermark layer.
Preferably, the thickness of the heat sensitive coating is 6 ± 2 microns.
Preferably, the thickness of the base watermark paper with a basis weight of 53 + -2 g/m is 59 + -5 μm.
Preferably, the thickness of the raw watermarking paper with the basis weight of 58 +/-2 grams per square meter is 64 +/-5 microns.
Preferably, the thickness of the raw watermark paper with a basis weight of 60 + -2 g/m is 66 + -5 μm.
Preferably, the thickness of the base watermark paper with a basis weight of 65 ± 2 g/m is 71 ± 5 microns.
Preferably, the thickness of the raw watermark paper with a quantitative value of 70 plus or minus 2 g/square meter is 77 plus or minus 5 microns.
According to the preparation method of the watermark thermal paper provided by the invention, the watermark thermal paper is used as the base paper of the thermal paper, and the back of the watermark surface of the watermark paper is coated with the thermal paint, so that the watermark thermal paper is obtained.
Preferably, the watermark paper is used for preparing a watermark on base paper through a watermark roller or a watermark net to obtain watermark base paper, and then the back of the watermark surface of the watermark base paper is coated with a heat-sensitive coating.
Compared with the prior art, the invention has the following beneficial effects:
1. the watermark paper is used as the raw paper of the thermal paper, the thermal paper is further processed to obtain the thermal paper, the prepared paper has the functions of both anti-counterfeiting and thermal copying, and the thermal paper still has the thermal anti-counterfeiting effect after the thermal paper is imaged by a printer or external force through heat transfer.
2. The watermark can be permanently retained on the paper surface, and compared with the degradation problem of printing anti-counterfeiting on the thermal sensitive paper, the thermal sensitive paper can have a long-term anti-counterfeiting special effect. Under normal illumination conditions (daytime or under light), the watermark anti-counterfeiting image-text can be seen indoors and outdoors.
3. The anti-counterfeiting thermal sensitive paper does not contain bisphenol A substances harmful to human bodies, and protective functional layers such as water resistance, oil resistance and plasticizer resistance can be further added according to specific requirements, so that the anti-counterfeiting thermal sensitive paper can be developed continuously and applied to more and wider social fields.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of the watermarking base paper of the invention;
FIG. 3 is a flow chart of a process for preparing the watermark thermal paper of the present invention;
FIG. 4 is a flow chart of the preparation of the heat sensitive coating of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1, the present invention provides a thermal paper for anti-counterfeit watermark, comprising: a watermark base paper 1 and a heat-sensitive coating 2. The watermark base paper 1 is to use the watermark paper as the base paper of the anti-counterfeiting watermark thermal sensitive paper, the bottom surface of the watermark base paper 1 is provided with a watermark area for anti-counterfeiting, and the thermal sensitive coating 2 is arranged on the top surface of the watermark base paper 1, namely the back surface of the watermark surface.
As shown in fig. 2, the raw watermark paper 1 in this embodiment is a multilayer structure, and includes: a backing layer 11 and a watermark layer 12. The watermark layer 12 is arranged on the bottom surface of the backing layer 11 and serves as the bottom layer of the multilayer structure, and the heat-sensitive coating 2 is arranged on the top surface of the multilayer structure. And a watermark area is arranged at the preset position of the watermark layer or on the whole watermark layer.
In order to increase the anti-counterfeiting effect, the watermark layer 12 is designed to be a double-layer structure, and the watermark layer comprises: a first watermark layer 101 and a second watermark layer 102, the second watermark layer 102 being located between the first watermark layer 101 and the supporting layer 11. The second watermark layer 102 is a colour layer and the watermark regions are located in the first watermark layer 101. Thus, a watermark anti-counterfeiting layer formed by the watermark layer and the color layer is formed. The different colors of the layers also form anti-counterfeiting characteristics for identifying authenticity. The layered color separation watermark anti-counterfeiting paper has two anti-counterfeiting characteristics of watermark and layered color separation.
For better copying properties, the thickness of the thermally sensitive coating is preferably between 6 ± 2 microns.
The quantitative thickness standard of the common watermark heat-sensitive base paper is shown in the following table:
| item | Unit of | 53 | 58 | 60 | 65 | 70 |
| Quantification of | Gram per square meter | 53±2.0 | 58±2.0 | 60±2.0 | 65±2.0 | 70±2.0 |
| Thickness of | Micron meter | 59±5 | 64±5 | 66±5 | 71±5 | 77±5 |
Taking the ticket item with a quantitative value of 70 g/m as an example, the detection data of the final finished product are shown in the following table:
taking a ticket item of 67 grams per square meter as an example, the detection data of the final finished product is shown in the following table:
taking a ticket item of 73 grams square meter as an example, the detection data of the final finished product is shown in the following table:
the invention also provides a preparation method of the watermark thermal paper, which comprises the steps of taking the watermark paper as the base paper of the thermal paper, and coating the thermal paint on the back surface of the watermark paper so as to obtain the watermark thermal paper. Preparing a watermark on the base paper by the watermark paper through a watermark roller or a watermark net to obtain the watermark base paper, and then coating a heat-sensitive coating on the back of the watermark surface of the watermark base paper.
The watermark roller and the watermark net are designed with the anti-counterfeiting image and text according to the actual application requirement, and then the roller or the watermark net with the image and text and having concave and convex is manufactured in a copper net or silver welding mode. The watermark roll or the screen containing the pictures and texts is arranged on different types of paper machines such as a fourdrinier wire, a cylinder mould and the like for making base paper, after paper is discharged, the watermark for fixing the pictures and texts is fixed on the surface of the paper and is used as the base paper, the base basis weight of the base paper is 53-70 g, and the basis weight and the thickness can be increased or decreased according to actual needs. The back of the watermark surface of the watermark base paper is coated with the thermosensitive coating, so that the paper body has a thermosensitive coating and contains nondegradable anti-counterfeiting pictures and texts, and the use function and anti-counterfeiting effect of the thermosensitive paper are achieved.
Specifically, as shown in fig. 3, pulp is first ground, auxiliary materials are added, the pulp enters a head box to prepare base paper, and then the base paper is processed by a watermark roll and a watermark net to prepare the watermark base paper. And carrying out a gluing and drying process of the thermosensitive coating after squeezing and drying processes, wherein the frequency of the gluing and drying process is designed according to actual conditions. And performing press polishing after the gluing and drying process is finished, so that the surface of the thermosensitive coating is flat and smooth.
As shown in fig. 4, the preparation process of the thermosensitive coating includes: grinding raw materials, melting an adhesive, wherein the melting adhesive is melted by hot water, and then the melted adhesive and the ground raw materials are mixed with styrene butadiene latex and kaolin to be stirred and synthesized, so that the thermosensitive coating is obtained. In the gluing and drying process, as the customer has strict requirements on tensile strength, tearing strength, smoothness and color development, the reasonable proportion is obtained through repeated experiments. The drying is carried out by heating with natural gas, which is not limited in the present invention.
The anti-counterfeiting watermark heat-sensitive paper provided by the invention can be applied to any anti-counterfeiting bills, such as vehicle and ship tickets, entrance tickets, bank tickets and the like.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. Use of a watermark paper in the preparation of thermal paper, comprising: and (3) taking the watermark paper as the base paper of the thermal sensitive paper, and coating a thermal sensitive coating on the back of the watermark surface of the watermark paper to obtain the watermark thermal sensitive paper.
2. A watermark thermal paper, comprising: watermark base paper and a heat-sensitive coating;
wherein, the watermark body paper is multilayer structure, includes: a supporting layer and a watermark layer;
the watermark layer is positioned on the bottom surface of the support layer and is used as the bottom layer of the multilayer structure, and the heat-sensitive coating is arranged on the top surface of the multilayer structure;
and a watermark area is arranged at the preset position of the watermark layer or on the whole watermark layer.
3. The thermal paper for preventing forgery of watermark according to claim 1, wherein the thickness of the thermal coating layer is 6 ± 2 μm.
4. The thermal paper for preventing forgery of watermark as claimed in claim 1, wherein the thickness of the base paper for watermark whose basis weight is 53 ± 2 g/m is 59 ± 5 μm.
5. The thermal paper for preventing forgery of watermark as claimed in claim 1, wherein the thickness of the raw paper for watermark with a basis weight of 58 ± 2 g/m is 64 ± 5 μm.
6. The thermal paper for preventing forgery of watermark as claimed in claim 1, wherein the thickness of the raw paper for watermark with a basis weight of 60 ± 2 g/m is 66 ± 5 μm.
7. The thermal paper for preventing forgery of watermark as claimed in claim 1, wherein the thickness of the raw paper for watermark with a basis weight of 65 ± 2 g/m is 71 ± 5 μm.
8. The thermal paper for preventing forgery of watermark in claim 1, wherein the thickness of the raw paper for watermark is 77 ± 5 μm with a basis weight of 70 ± 2 g/m.
9. The preparation method of the watermark thermal sensitive paper is characterized in that the watermark thermal sensitive paper is used as the base paper of the thermal sensitive paper, and the back of the watermark surface of the watermark thermal sensitive paper is coated with the thermal sensitive coating to obtain the watermark thermal sensitive paper.
10. The method for preparing the watermark thermal paper according to claim 9, wherein the watermark paper is prepared into a watermark base paper by preparing a watermark on the base paper through a watermark roller or a watermark net, and then the back of the watermark surface of the watermark base paper is coated with a thermal-sensitive coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010270454.6A CN111455722A (en) | 2020-04-08 | 2020-04-08 | Application of watermark paper in preparation of thermal sensitive paper, watermark thermal sensitive paper and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010270454.6A CN111455722A (en) | 2020-04-08 | 2020-04-08 | Application of watermark paper in preparation of thermal sensitive paper, watermark thermal sensitive paper and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111455722A true CN111455722A (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010270454.6A Pending CN111455722A (en) | 2020-04-08 | 2020-04-08 | Application of watermark paper in preparation of thermal sensitive paper, watermark thermal sensitive paper and preparation method thereof |
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Citations (14)
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|---|---|---|---|---|
| JPH1178326A (en) * | 1997-09-17 | 1999-03-23 | Dainippon Printing Co Ltd | Forgery preventing paper with recording layer and railroad ticket utilizing the paper |
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| CN110055816A (en) * | 2019-05-31 | 2019-07-26 | 江苏万宝瑞达高新技术有限公司 | A kind of heat-sensitive paper being applicable in bottomless paper label and its manufacturing method |
| CN110103603A (en) * | 2019-05-31 | 2019-08-09 | 江苏万宝瑞达高新技术有限公司 | The resistance to strong wet friction thermosensitive film of one kind and its manufacturing method |
| CN209479150U (en) * | 2018-12-15 | 2019-10-11 | 苏州冠威热敏纸有限公司 | A kind of anti-static heat-insulating heat-sensitive paper |
| CN212426559U (en) * | 2020-04-08 | 2021-01-29 | 上海加颂纸业有限公司 | Anti-counterfeiting watermark heat-sensitive paper and anti-counterfeiting bill |
-
2020
- 2020-04-08 CN CN202010270454.6A patent/CN111455722A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1178326A (en) * | 1997-09-17 | 1999-03-23 | Dainippon Printing Co Ltd | Forgery preventing paper with recording layer and railroad ticket utilizing the paper |
| US20040092397A1 (en) * | 2001-03-16 | 2004-05-13 | Wolfgang Wagner | Heat-sensitive recording sheet and the use thereof |
| CN2543162Y (en) * | 2001-11-29 | 2003-04-02 | 海特啤酒株式会社 | Colour label with temp-indicating function |
| CN1431367A (en) * | 2003-02-14 | 2003-07-23 | 胡传辉 | Color anti-fraud watermark paper and its producing method |
| CN203299860U (en) * | 2013-05-03 | 2013-11-20 | 宋金锴 | Two-dimension-code label with anti-counterfeiting function |
| CN104175672A (en) * | 2014-08-18 | 2014-12-03 | 苏州斯迪克新材料科技股份有限公司 | Composite thin film for medical wrist strap and preparation technology of composite thin film |
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| CN106368078A (en) * | 2016-10-13 | 2017-02-01 | 王天宇 | Layered color separation watermark anti-counterfeiting paper and preparation method thereof |
| CN207210843U (en) * | 2017-09-22 | 2018-04-10 | 厦门富士乐医疗科技有限公司 | Medical thermal printing paper |
| CN208881389U (en) * | 2018-07-24 | 2019-05-21 | 苏州以诺包装材料科技有限公司 | A kind of mirror surface heat-sensitive paper |
| CN209479150U (en) * | 2018-12-15 | 2019-10-11 | 苏州冠威热敏纸有限公司 | A kind of anti-static heat-insulating heat-sensitive paper |
| CN110055816A (en) * | 2019-05-31 | 2019-07-26 | 江苏万宝瑞达高新技术有限公司 | A kind of heat-sensitive paper being applicable in bottomless paper label and its manufacturing method |
| CN110103603A (en) * | 2019-05-31 | 2019-08-09 | 江苏万宝瑞达高新技术有限公司 | The resistance to strong wet friction thermosensitive film of one kind and its manufacturing method |
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