CN109440534B - Transfer platinum cat eye positioning paper and preparation process thereof - Google Patents
Transfer platinum cat eye positioning paper and preparation process thereof Download PDFInfo
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- CN109440534B CN109440534B CN201811551643.XA CN201811551643A CN109440534B CN 109440534 B CN109440534 B CN 109440534B CN 201811551643 A CN201811551643 A CN 201811551643A CN 109440534 B CN109440534 B CN 109440534B
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 186
- 229910052697 platinum Inorganic materials 0.000 title claims abstract description 93
- 238000012546 transfer Methods 0.000 title claims abstract description 75
- 241000282326 Felis catus Species 0.000 title claims abstract description 61
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 113
- 239000011248 coating agent Substances 0.000 claims abstract description 111
- 239000003292 glue Substances 0.000 claims abstract description 66
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 52
- 238000000465 moulding Methods 0.000 claims abstract description 28
- 238000005520 cutting process Methods 0.000 claims abstract description 27
- 238000013329 compounding Methods 0.000 claims abstract description 22
- 238000005269 aluminizing Methods 0.000 claims abstract description 20
- 239000000853 adhesive Substances 0.000 claims abstract description 16
- 230000001070 adhesive effect Effects 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 239000000123 paper Substances 0.000 claims description 100
- 238000001035 drying Methods 0.000 claims description 30
- 229920002635 polyurethane Polymers 0.000 claims description 26
- 239000004814 polyurethane Substances 0.000 claims description 26
- 239000004816 latex Substances 0.000 claims description 20
- 229920000126 latex Polymers 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 15
- 239000000839 emulsion Substances 0.000 claims description 15
- 239000002966 varnish Substances 0.000 claims description 12
- 238000003848 UV Light-Curing Methods 0.000 claims description 10
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 10
- 229920002799 BoPET Polymers 0.000 claims description 9
- 229920000178 Acrylic resin Polymers 0.000 claims description 8
- 239000004925 Acrylic resin Substances 0.000 claims description 8
- 238000001723 curing Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 8
- 238000007747 plating Methods 0.000 claims description 7
- 229920006026 co-polymeric resin Polymers 0.000 claims description 5
- 238000007723 die pressing method Methods 0.000 claims description 5
- 238000001259 photo etching Methods 0.000 claims description 5
- 229920005749 polyurethane resin Polymers 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 230000007306 turnover Effects 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 239000003085 diluting agent Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002932 luster Substances 0.000 abstract description 9
- 238000010030 laminating Methods 0.000 abstract description 3
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 78
- 230000000694 effects Effects 0.000 description 19
- 235000019504 cigarettes Nutrition 0.000 description 8
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 4
- 241000208125 Nicotiana Species 0.000 description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 230000032798 delamination Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
- B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
- B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
- B44C1/175—Transfer using solvent
- B44C1/1752—Decalcomanias provided with a particular decorative layer, e.g. being specially adapted to allow the formation of a metallic or dyestuff layer on a substrate unsuitable for direct deposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
- B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
- B44C1/175—Transfer using solvent
- B44C1/1754—Decalcomanias provided with a layer being specially adapted to facilitate their release from a temporary carrier
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/02—Metal coatings
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/66—Coatings characterised by a special visual effect, e.g. patterned, textured
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/82—Paper comprising more than one coating superposed
Abstract
The application provides a transfer platinum cat eye positioning paper and a preparation process thereof, relates to the technical field of printing, and discloses a preparation process of the transfer platinum cat eye positioning paper, which comprises the following steps: UV coating molding process, aluminizing process, back adhesive process, slitting process, compounding process, wire stripping and surface coating process and transverse cutting process. The utility model provides a shift platinum cat eye locating paper, includes the base paper layer, compound in proper order on the base paper layer shift glue layer, waterborne gum layer, platinum cat eye aluminizing layer and waterborne topcoat. The paper aluminum layer and the paper obtained by the preparation process are firmly combined, the positioning precision is high, the difficult problem that the combination fastness of the UV layer and the aluminum layer is poor in the traditional transfer process is solved, the process that only the platinum cat eye aluminum layer is transferred but the UV coating is not transferred is realized, the platinum luster is stronger than that of a laminating card, the efficiency is higher, the production cost is reduced, the application is not limited any more, and the application of the platinum positioning paper in the packaging industry can be greatly promoted.
Description
Technical Field
The application relates to the technical field of printing, in particular to transfer platinum cat eye positioning paper and a preparation process thereof.
Background
The platinum positioning paper is touted by vast seal enterprises because of the characteristics of platinum luster, high anti-counterfeiting performance, 3D embossment effect and the like, and is one of the main development directions of future laser packaging materials. The platinum locating paper generally adopts a UV coating and molding process, mainly adopts a laminating card, at present, the phenomenon of insufficient bonding fastness of a UV layer and an aluminum layer generally exists, and can only meet the packaging use requirement by adopting an aluminum surface compounding mode, so that the platinum locating paper can be widely used in the wine package industry, but the use of the platinum locating paper in the tobacco package industry mainly adopts transfer paper is greatly limited, and development of transfer platinum locating paper is urgently required to meet the market requirement. At present, the transfer type platinum positioning paper is not seen in the market, the transfer type platinum positioning paper produced by the traditional transfer paper process (transfer coating and aluminum layer are transferred together) cannot be realized, and a new process needs to be developed.
Based on the above, the inventor specially researches the method, and develops a transfer platinum cat eye positioning paper and a preparation process thereof, so that the scheme is generated.
Disclosure of Invention
In order to solve the above-mentioned drawbacks of the prior art, a first object of the present application is to provide a process for preparing a transfer platinum cat eye positioning paper.
In order to achieve the above purpose, the technical scheme adopted by the application is as follows:
a preparation process for transferring platinum cat eye positioning paper comprises the following steps:
(1) UV coating molding process: coating UV gloss oil on the PET pretreatment film, and preparing a mother film through mould pressing and UV curing; the platinum cat eye pattern can be subjected to photoetching according to design requirements; the plate seam treatment solves the difficulties of glue overflow, sticking, top injury and the like of the plate seam in the industry.
(2) Aluminizing procedure: plating a mother film UV coating surface on an aluminizer to prepare a transfer platinum cat eye aluminizer;
(3) Back adhesive and slitting process: coating aqueous back glue on the aluminum surface of the aluminized film, drying and cutting to obtain a finished film; when the platinum aluminized film is directly compounded with paper, the film stripping can be residual, so that a layer of self-made aqueous back glue is coated to enhance the combination of glue and the aluminum layer, so that the aluminum layer can be completely transferred to the base paper without residual on the film.
(4) Compounding: coating transfer glue on the aluminum surface of the finished film on a compounding machine to be compounded with base paper, and drying;
(5) And (3) wire stripping and surface coating: and (5) stripping the connection line, coating the water-based varnish, drying to obtain transfer platinum positioning paper, and winding the stripped film.
(6) And (3) transverse cutting: and (5) transversely cutting on a high-precision positioning transverse cutting machine, and tracking and cutting paper through an electric eye.
Preferably, in the UV coating molding process, the UV varnish comprises a mixture of an oligomer, a photoinitiator, a reactive diluent and an auxiliary agent.
Preferably, the UV coating and molding process is implemented on a coating and molding press table, and the specific implementation manner is as follows: photolithography platinum cat eye master plate special edition, makeup, plate turnover, plate cutting, plate wrapping, plate seam treatment, UV gloss oil coating on PET precoating film, die pressing, UV curing and rolling.
Preferably, in the step of peeling off the connecting line and coating the surface, the peeled film is repeatedly used in the steps (2), (3), (4) and (5). The stripped film is rolled up and can be reused, and the surface coating has excellent ink adhesion for paper.
Preferably, in the UV coating molding step, the UV varnish coating amount is 3 to 15g/m 2 The molding speed is 20-80 m/min, the curing power of the UV lamp is 7.5-20 KW, and the pressure is 2-25 kg.
Preferably, in the UV coating and molding process, the PET film is a precoating film with a thickness of 10-40 um, and the precoating purpose is to provide excellent adhesion between the UV layer and the film.
More preferably, the thickness of the PET film is 20-30 um, so that the stretching of the film is reduced.
Preferably, in order to ensure a strong platinum effect of the aluminized film, in the aluminizing step, the thickness of the aluminum layer is 510+/-50 angstroms, and the aluminizing speed is 250-600 m/min. Aluminizing can provide a high platinum golden luster effect to better present a stamped copy effect while protecting and fixing the laser information pattern.
Preferably, in order to enhance the bonding fastness between the aluminum layer and the glue and facilitate the peeling between the aluminum layer and the UV layer, the aqueous back glue adopts any one or more than two of aqueous acrylic emulsion, aqueous polyurethane emulsion and acrylic acid-polyurethane blending emulsion in the back glue and slitting process.
Preferably, in the back adhesive and slitting process, the coating amount of the aqueous back adhesive is 3-8 g/m 2 The coating speed is 50-160 m/min, and the drying temperature is 60-110 ℃.
Preferably, in the compounding step, the transfer glue is aqueous transfer glue, and any one or a combination of more than two of acrylic latex, polyurethane latex, VAE latex and acrylic-polyurethane copolymer latex is adopted. The glue can completely transfer the platinum cat eye aluminized layer to the base paper without remaining on the film, and the base paper and the aluminum layer are firmly bonded together.
Preferably, in the compounding step, the coating amount of the transfer glue is 4-10 g/m 2 The compounding speed is 60-140 m/min, and the drying temperature is 60-120 ℃.
Preferably, in the step of stripping the connecting line and the step of coating the connecting line, the base paper adopts any one of white cardboard, coated paper, black cardboard, gray cardboard and glass cardboard.
Preferably, in the step of peeling off the connecting line and coating the connecting line, the varnish is any one or a combination of two or more of aqueous acrylic resin, aqueous polyurethane resin and aqueous acrylic-polyurethane copolymer resin. Preferably, in the wire stripping and surface coating step, the surface coating amount is 3-10 g/m 2 The coating speed is 60-140 m/min, and the drying temperature is 60-120 ℃.
Preferably, in the transverse cutting process, the needle position of the cut paper is controlled to be 1-2 needles, the deviation of the paper squareness is less than 1mm, and the printing register position of the paper during the on-machine is ensured to be accurate.
The second object of the application is to provide a transfer platinum cat eye positioning paper, which comprises a base paper layer, a transfer glue layer, an aqueous back glue layer, a platinum cat eye aluminized layer and an aqueous surface coating, wherein the transfer glue layer, the aqueous back glue layer, the platinum cat eye aluminized layer and the aqueous surface coating are sequentially compounded on the base paper layer.
The third object of the application is to provide the application of the transfer platinum cat eye positioning paper in anti-counterfeiting packages such as cigarettes, wine, medicines, foods and daily necessities, and in anti-counterfeiting marks such as trademarks and labels.
The application has the technical effects and principles that:
(1) The transfer platinum positioning paper is prepared through the processes of UV coating molding, aluminizing, back adhesive, slitting, compounding, stripping, surface coating, transverse cutting and the like, the obtained paper has good fastness between an aluminum layer and the paper, the adhesive tape is quickly pulled and torn off and does not delaminate, the platinum luster is strong, the positioning precision is high, the platinum effect and the 3D effect are strong, the pattern information of the platinum cat eye plate can be completely reduced, the positioning precision is high, the deviation of the sleeve position is within +/-0.5 mm, the paper has high anti-counterfeiting performance, high additional value is provided for users, the difficult problem that the cat eye film card is limited in use in the tobacco bale industry is broken through, and the market demand is met.
(2) According to the preparation process, only the platinum cat eye aluminum layer with the back adhesive is transferred to the paper during transfer, the UV coating is still remained on the film, the combination between the obtained paper aluminum layer and the paper is firm, the positioning accuracy is high, the problem that the combination fastness of the UV layer and the aluminum layer is poor in the traditional transfer process (the simultaneous transfer process of the UV layer and the aluminum layer) is solved, the process that only the platinum cat eye aluminum layer is transferred but the UV coating is not transferred is realized, the platinum luster is stronger than that of a laminating card, the efficiency is higher, the production cost is reduced, the application is not limited any more, the prospect is wide, and the application of the platinum positioning paper in the packaging industry can be greatly promoted.
(3) In the preparation process, the mother film can be recycled, so that the energy is saved, the consumption is reduced, the environment is protected, and the sustainable development trend is complied with.
Drawings
Fig. 1 is a schematic structural diagram of a transfer platinum cat eye positioning paper according to the present embodiment.
Labeling and describing: 1 is a bottom paper layer, 2 is a transfer glue layer, 3 is an aqueous back glue layer, 4 is a platinum cat eye aluminized layer, and 5 is an aqueous surface coating.
Detailed Description
As shown in fig. 1, fig. 1 is a schematic structural diagram of a transfer platinum cat eye positioning paper in this embodiment, which includes a base paper layer, a transfer glue layer, a water-based back glue layer, a platinum cat eye aluminizing layer and a water-based top coating layer sequentially compounded on the base paper layer, wherein the transfer glue layer, the water-based back glue layer, the platinum cat eye aluminizing layer and the water-based top coating layer are prepared by processes such as UV coating and molding, aluminizing, back glue, slitting, compounding, stripping, surface coating, transverse cutting and the like, the obtained paper has good fastness between the aluminum layer and the paper, the adhesive tape is quickly pulled and uncovered without delamination, and has strong platinum luster, high positioning precision, reusable mother film and high production efficiency, and in order to enable the technical means and the technical effect achieved by the application to be more clearly and more perfect, the embodiment of the preparation process for the transfer platinum cat eye positioning paper is provided by the following steps:
example 1
The preparation process of the transfer platinum cat eye positioning paper comprises the following steps:
(1) UV coating molding process: coating UV gloss oil on the PET pretreatment film, and preparing a mother film through mould pressing and UV curing; the platinum cat eye pattern can be subjected to photoetching according to design requirements; the plate seam treatment solves the difficulties of glue overflow, material sticking, top injury and the like of the plate seam in the industry and is the guarantee of making a high-quality platinum cat eye mother film; the UV gloss oil is special gloss oil subjected to special treatment, and comprises an oligomer, a photoinitiator, a reactive diluent, an auxiliary agent and the like, wherein the oligomer is low-molecular resin containing C=C unsaturated double bonds, and the oligomer is acrylic resin, polyurethane acrylic resin, polyester acrylic resin and the like, and the functionality is 2-3. The combination fastness of the gloss oil layer and the precoating film is required to be good and fold-resistant, and the combination fastness with the aluminum layer is poor. The UV coating and molding process is realized on a coating and molding press table, and the specific realization mode is as follows: photolithography platinum cat eye master plate special edition, makeup, plate turnover, plate cutting, plate wrapping, plate seam treatment, UV gloss oil coating on PET precoating film, die pressing, UV curing and rolling. UV gloss oil coating amount is 3g/m 2 The molding speed was 25m/min, the curing power of the UV lamp was 8KW, and the pressure was 2kg. The PET film is a precoating film, and the precoating purpose is to provide excellent adhesion force for the UV layer and the film. Because the thinner the film thickness is, the more easily the stretching is, in order to reduce the stretching of the film, the PET film thickness is 10um, the film is sleeved with a film for a mould pressing film, the deviation is within +/-0.5 mm, and the mother film after curing and forming is not easily stretched.
(2) Aluminizing procedure: plating a mother film UV coating surface on an aluminizer to prepare a transfer platinum cat eye aluminizer; in order to ensure the strong platinum effect of the aluminizer, the thickness of the aluminizer is 510+/-50 angstroms, and the aluminizing speed is 250m/min. The thickness of the whole film is required to be uniform, no obvious color difference exists, and apparent defects such as aluminum splashing, leakage point, oxidation and the like are avoided. Aluminizing can provide a high platinum golden luster effect to better present a stamped copy effect while protecting and fixing the laser information pattern.
(3) Back adhesive and slitting process: in the aluminizerCoating aqueous back glue on the aluminum surface, drying and cutting to obtain a finished film; when the platinum aluminized film is directly compounded with paper, the film stripping can be residual, so that a layer of self-made aqueous back glue is coated to enhance the combination of glue and the aluminum layer, so that the aluminum layer can be completely transferred to the base paper without residual on the film. In order to enhance the bonding fastness between the aluminum layer and the glue and simultaneously facilitate the stripping between the aluminum layer and the UV layer, the aqueous back glue adopts any one or more than two of aqueous acrylic emulsion, aqueous polyurethane emulsion and acrylic acid-polyurethane blending emulsion. The coating weight of the aqueous back adhesive is 3g/m 2 The coating speed was 50m/min and the drying temperature was 60 ℃. The back adhesive layer is required to have high transparency, good anti-blocking property, folding resistance, VOC content meeting the requirements of cigarette packets and the like.
(4) Compounding: coating transfer glue on the aluminum surface of the finished film on a compounding machine to be compounded with base paper, and drying; the transfer glue is water-based transfer glue, and any one or more than two of acrylic latex, polyurethane latex, VAE latex and acrylic-polyurethane copolymer latex are adopted. The glue can completely transfer the platinum cat eye aluminized layer to the base paper without remaining on the film, and the base paper and the aluminum layer are firmly bonded together. The coating weight of the transfer glue is 4g/m 2 The compounding speed is 60m/min, and the drying temperature is 60 ℃.
(5) And (3) wire stripping and surface coating: and (5) stripping the connection line, coating the water-based varnish, drying to obtain transfer platinum positioning paper, and winding the stripped film. Repeating the steps (2), (3), (4) and (5) for multiple times. The stripped film is rolled up and can be reused, and the surface coating has excellent ink adhesion for paper. The base paper adopts any one of white cardboard, coated paper, black cardboard, gray cardboard and glass cardboard. The varnish is any one or the combination of more than two of aqueous acrylic resin, aqueous polyurethane resin and aqueous acrylic-polyurethane copolymer resin. The surface coating has strong binding fastness with the aluminum layer and the printing ink, high transparency, good anti-sticking performance, folding resistance, VOC content meeting the requirements of cigarette packets and the like. The top coat coating weight was 3g/m 2 The coating speed was 60m/min and the drying temperature was 60 ℃.
(6) And (3) transverse cutting: and controlling the needle position of the paper by adopting a high-precision positioning machine, and keeping the needle position of the paper at 1-2 needles.
Example 2
The preparation process of the transfer platinum cat eye positioning paper comprises the following steps:
(1) UV coating molding process: coating UV gloss oil on the PET pretreatment film, and preparing a mother film through mould pressing and UV curing; the platinum cat eye pattern can be subjected to photoetching according to design requirements; the plate seam treatment solves the difficulties of glue overflow, material sticking, top injury and the like of the plate seam in the industry and is the guarantee of making a high-quality platinum cat eye mother film; the UV gloss oil is specially treated special gloss oil, and the gloss oil layer and the precoating film are required to have good bonding fastness, folding resistance and poor bonding fastness with the aluminum layer. The UV coating and molding process is realized on a coating and molding press table, and the specific realization mode is as follows: photolithography platinum cat eye master plate special edition, makeup, plate turnover, plate cutting, plate wrapping, plate seam treatment, UV gloss oil coating on PET precoating film, die pressing, UV curing and rolling. The UV gloss oil coating weight is 10g/m 2 The molding speed was 50m/min, the curing power of the UV lamp was 15KW, and the pressure was 13kg. The PET film is a precoating film, and the precoating purpose is to provide excellent adhesion force for the UV layer and the film. Because the thinner the film thickness is, the more easily the stretching is, in order to reduce the stretching of the film, the PET film thickness is 25um, the film is sleeved with a film for a mould pressing film, the deviation is within +/-0.5 mm, and the mother film after curing and forming is not easily stretched.
(2) Aluminizing procedure: plating a mother film UV coating surface on an aluminizer to prepare a transfer platinum cat eye aluminizer; in order to ensure the strong platinum effect of the aluminizer, the thickness of the aluminizer is 510+/-50 angstroms, and the aluminizing speed is 400m/min. The thickness of the whole film is required to be uniform, no obvious color difference exists, and apparent defects such as aluminum splashing, leakage point, oxidation and the like are avoided. Aluminizing can provide a high platinum golden luster effect to better present a stamped copy effect while protecting and fixing the laser information pattern.
(3) Back adhesive and slitting process: coating aqueous back glue on the aluminum surface of the aluminized film, drying and cutting to obtain a finished film; when the platinum aluminized film is directly compounded with paper, the film stripping can be residual, so that a layer of self-made aqueous back glue is coated to enhance the combination of glue and the aluminum layer, so that the aluminum layer can be completely transferred to the base paper without residual on the film.In order to enhance the bonding fastness between the aluminum layer and the glue and simultaneously facilitate the stripping between the aluminum layer and the UV layer, the aqueous back glue adopts any one or more than two of aqueous acrylic emulsion, aqueous polyurethane emulsion and acrylic acid-polyurethane blending emulsion. The coating weight of the aqueous back adhesive is 5g/m 2 The coating speed was 100m/min and the drying temperature was 85 ℃. The back adhesive layer is required to have high transparency, good anti-blocking property, folding resistance, VOC content meeting the requirements of cigarette packets and the like.
(4) Compounding: coating transfer glue on the aluminum surface of the finished film on a compounding machine to be compounded with base paper, and drying; the transfer glue is water-based transfer glue, and any one or more than two of acrylic latex, polyurethane latex, VAE latex and acrylic-polyurethane copolymer latex are adopted. The glue can completely transfer the platinum cat eye aluminized layer to the base paper without remaining on the film, and the base paper and the aluminum layer are firmly bonded together. The coating weight of the transfer glue is 8g/m 2 The compounding speed is 100m/min, and the drying temperature is 90 ℃.
(5) And (3) wire stripping and surface coating: and (5) stripping the connection line, coating the water-based varnish, drying to obtain transfer platinum positioning paper, and winding the stripped film. Repeating the steps (2), (3), (4) and (5) for multiple times. The stripped film is rolled up and can be reused, and the surface coating has excellent ink adhesion for paper. The base paper adopts any one of white cardboard, coated paper, black cardboard, gray cardboard and glass cardboard. The varnish is any one or the combination of more than two of aqueous acrylic resin, aqueous polyurethane resin and aqueous acrylic-polyurethane copolymer resin. The surface coating has strong binding fastness with the aluminum layer and the printing ink, high transparency, good anti-sticking performance, folding resistance, VOC content meeting the requirements of cigarette packets and the like. The top coating weight was 6g/m 2 The coating speed was 100m/min and the drying temperature was 100 ℃.
(6) And (3) transverse cutting: and (3) transversely cutting on a high-precision positioning transverse cutting machine, tracking and cutting paper by an electric eye, controlling the needle position of the cut paper to be 1-2 needles, and ensuring the paper printing registration accuracy when the paper is on the machine, wherein the deviation of the paper squareness is less than 1mm.
Example 3
The preparation process of the transfer platinum cat eye positioning paper comprises the following steps:
(1) UV coating molding process: coating UV gloss oil on the PET pretreatment film, and preparing a mother film through mould pressing and UV curing; the platinum cat eye pattern can be subjected to photoetching according to design requirements; the plate seam treatment solves the difficulties of glue overflow, material sticking, top injury and the like of the plate seam in the industry and is the guarantee of making a high-quality platinum cat eye mother film; the UV gloss oil is specially treated special gloss oil, and the gloss oil layer and the precoating film are required to have good bonding fastness, folding resistance and poor bonding fastness with the aluminum layer. The UV coating and molding process is realized on a coating and molding press table, and the specific realization mode is as follows: photolithography platinum cat eye master plate special edition, makeup, plate turnover, plate cutting, plate wrapping, plate seam treatment, UV gloss oil coating on PET precoating film, die pressing, UV curing and rolling. The UV gloss oil coating weight is 15g/m 2 The molding speed was 80m/min, the curing power of the UV lamp was 20KW, and the pressure was 25kg. The PET film is a precoating film, and the precoating purpose is to provide excellent adhesion force for the UV layer and the film. Because the thinner the film thickness is, the more easily the stretching is, in order to reduce the stretching of the film, the PET film thickness is 40um, the film is sleeved with a film for a mould pressing film, the deviation is within +/-0.5 mm, and the mother film after curing and forming is not easily stretched.
(2) Aluminizing procedure: plating a mother film UV coating surface on an aluminizer to prepare a transfer platinum cat eye aluminizer; in order to ensure the strong platinum effect of the aluminizer, the thickness of the aluminizer is 510+/-50 angstroms, and the aluminizing speed is 600m/min. The thickness of the whole film is required to be uniform, no obvious color difference exists, and apparent defects such as aluminum splashing, leakage point, oxidation and the like are avoided. Aluminizing can provide a high platinum golden luster effect to better present a stamped copy effect while protecting and fixing the laser information pattern.
(3) Back adhesive and slitting process: coating aqueous back glue on the aluminum surface of the aluminized film, drying and cutting to obtain a finished film; when the platinum aluminized film is directly compounded with paper, the film stripping can be residual, so that a layer of self-made aqueous back glue is coated to enhance the combination of glue and the aluminum layer, so that the aluminum layer can be completely transferred to the base paper without residual on the film. In order to enhance the bonding fastness between the aluminum layer and the glue and simultaneously facilitate the stripping between the aluminum layer and the UV layer, the aqueous back glue adopts aqueous acrylic emulsion, aqueous polyurethane emulsion,Any one or more than two of the acrylic-polyurethane blend emulsion. The coating weight of the aqueous back adhesive is 8g/m 2 The coating speed was 160m/min and the drying temperature was 110 ℃. The back adhesive layer is required to have high transparency, good anti-blocking property, folding resistance, VOC content meeting the requirements of cigarette packets and the like.
(4) Compounding: coating transfer glue on the aluminum surface of the finished film on a compounding machine to be compounded with base paper, and drying; the transfer glue is water-based transfer glue, and any one or more than two of acrylic latex, polyurethane latex, VAE latex and acrylic-polyurethane copolymer latex are adopted. The glue can completely transfer the platinum cat eye aluminized layer to the base paper without remaining on the film, and the base paper and the aluminum layer are firmly bonded together. The coating weight of the transfer glue is 10g/m 2 The compounding speed is 140m/min, and the drying temperature is 120 ℃.
(5) And (3) wire stripping and surface coating: and (5) stripping the connection line, coating the water-based varnish, drying to obtain transfer platinum positioning paper, and winding the stripped film. Repeating the steps (2), (3), (4) and (5) for multiple times. The stripped film is rolled up and can be reused, and the surface coating has excellent ink adhesion for paper. The base paper adopts any one of white cardboard, coated paper, black cardboard, gray cardboard and glass cardboard. The varnish is any one or the combination of more than two of aqueous acrylic resin, aqueous polyurethane resin and aqueous acrylic-polyurethane copolymer resin. The surface coating has strong binding fastness with the aluminum layer and the printing ink, high transparency, good anti-sticking performance, folding resistance, VOC content meeting the requirements of cigarette packets and the like. The top coat coating weight was 10g/m 2 The coating speed was 140m/min and the drying temperature was 120 ℃.
(6) And (3) transverse cutting: and controlling the needle position of the paper by adopting a high-precision positioning machine, and keeping the needle position of the paper at 1-2 needles.
The paper prepared by the process of the 3 embodiments has strong platinum effect and 3D effect, can completely restore the pattern information of the platinum cat eye plate, has high positioning precision, ensures that the paper has high anti-counterfeiting performance within +/-0.5 mm of the deviation of the sleeve position, provides high added value for users, breaks through the difficult problem that the cat eye film card is limited in use in the tobacco bale industry, and has bright application prospect. Can be applied to anti-counterfeiting packages such as various cigarettes, wine, medicines, foods and daily necessities, and anti-counterfeiting marks such as trademarks and labels.
The foregoing is a further detailed description of the provided technical solution in connection with the preferred embodiments of the present application, and it should not be construed that the specific implementation of the present application is limited to the above description, and it should be understood that several simple deductions or substitutions may be made by those skilled in the art without departing from the spirit of the present application, and all the embodiments should be considered as falling within the scope of the present application.
Claims (7)
1. The preparation process of the transfer platinum cat eye positioning paper is characterized by comprising the following steps of:
(1) UV coating molding process: coating UV gloss oil on the PET pretreatment film, and preparing a mother film through mould pressing and UV curing;
(2) Aluminizing procedure: plating a mother film UV coating surface on an aluminizer to prepare a transfer platinum cat eye aluminizer;
(3) Back adhesive and slitting process: coating aqueous back glue on the coated aluminum surface, drying and cutting to obtain a finished film;
(4) Compounding: coating transfer glue on the aluminum surface of the finished film on a compounding machine to be compounded with base paper, and drying;
(5) And (3) wire stripping and surface coating: stripping the wire, coating water-based varnish, drying to obtain transfer platinum positioning paper, and winding the stripped film;
(6) And (3) transverse cutting: transecting on a high-precision positioning transection machine, and cutting paper through electric eye tracking;
in the UV coating and molding process, the PET film is a precoating film with the thickness of 10-40 um; the UV gloss oil comprises a mixture of an oligomer, a photoinitiator, a reactive diluent and an auxiliary agent, and the coating weight of the UV gloss oil is 3-15 g/m 2 ；
The transfer platinum cat eye positioning paper comprises a base paper layer, a transfer glue layer, a water-based back glue layer, a platinum cat eye aluminized layer and a water-based surface coating, wherein the transfer glue layer, the water-based back glue layer, the platinum cat eye aluminized layer and the water-based surface coating are sequentially compounded on the base paper layer;
the UV coating and molding process is realized on a coating and molding press table, and the specific realization mode is as follows: photoetching a platinum cat eye master plate special plate, makeup, plate turnover, plate cutting, plate wrapping, plate seam treatment, coating UV gloss oil on a PET precoat film, die pressing, UV curing and rolling; the molding speed is 20-80 m/min, the curing power of the UV lamp is 7.5-20 KW, and the pressure is 2-25 kg.
2. The process for preparing the transfer platinum cat eye positioning paper according to claim 1, wherein the process comprises the following steps: in the working procedures of wire stripping and surface coating, the stripped film is repeatedly used for a plurality of times in the steps (2), (3), (4) and (5).
3. The process for preparing the transfer platinum cat eye positioning paper according to claim 1, wherein the process comprises the following steps: in the aluminum plating process, the thickness of the aluminum layer is 510+/-50 angstroms, and the aluminum plating speed is 250-600 m/min.
4. The process for preparing the transfer platinum cat eye positioning paper according to claim 1, wherein the process comprises the following steps: in the back adhesive and slitting process, the aqueous back adhesive adopts any one or the combination of more than two of aqueous acrylic emulsion, aqueous polyurethane emulsion and acrylic acid-polyurethane blending emulsion; the coating amount of the aqueous back adhesive is 3-8 g/m < 2 >, the coating speed is 50-160 m/min, and the drying temperature is 60-110 ℃.
5. The process for preparing the transfer platinum cat eye positioning paper according to claim 1, wherein the process comprises the following steps: in the compounding procedure, the transfer glue is water-based transfer glue, and any one or more than two of acrylic latex, polyurethane latex, VAE latex and acrylic acid-polyurethane copolymer latex are adopted; the coating amount of the transfer glue is 4-10 g/m < 2 >, the compounding speed is 60-140 m/min, and the drying temperature is 60-120 ℃.
6. The process for preparing the transfer platinum cat eye positioning paper according to claim 1, wherein the process comprises the following steps: in the connecting stripping and surface coating process, the varnish is any one or the combination of more than two of aqueous acrylic resin, aqueous polyurethane resin and aqueous acrylic-polyurethane copolymer resin; the coating weight of the surface coating is 3-10 g/m < 2 >, the coating speed is 60-140 m/min, and the drying temperature is 60-120 ℃.
7. The process for preparing the transfer platinum cat eye positioning paper according to claim 1, wherein the process comprises the following steps: in the transverse cutting process, the needle position of the cut paper is controlled to be 1-2 needles, and the deviation of the square accuracy of the paper is less than 1mm.
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| CN112359648A (en) * | 2020-11-09 | 2021-02-12 | 上海顺灏新材料科技股份有限公司 | Transfer paper for positioning and transverse cutting, preparation method thereof and method for positioning and transverse cutting |
| CN114379275A (en) * | 2021-12-10 | 2022-04-22 | 浙江亚欣包装材料有限公司 | Positioning aluminum-plated film capable of reducing shrinkage deformation and preparation method thereof |
| CN116042080A (en) * | 2022-12-31 | 2023-05-02 | 浙江美浓材料科技有限公司 | Photo-curing soft mold pressing holographic replication coating suitable for cigarette labels, and preparation method and application thereof |
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Denomination of invention: A transfer platinum cat eye positioning paper and its preparation process Effective date of registration: 20231127 Granted publication date: 20230926 Pledgee: Bank of Shaoxing Co.,Ltd. high tech Development Zone sub branch Pledgor: SHAOXING HUCAIS LASER MATERIALS TECHNOLOGY CO.,LTD. Registration number: Y2023980067396 |
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