CN117661375A - Laser hollowed-out transfer paper and preparation method thereof - Google Patents
Laser hollowed-out transfer paper and preparation method thereof Download PDFInfo
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- CN117661375A CN117661375A CN202311790843.1A CN202311790843A CN117661375A CN 117661375 A CN117661375 A CN 117661375A CN 202311790843 A CN202311790843 A CN 202311790843A CN 117661375 A CN117661375 A CN 117661375A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 208
- 238000003384 imaging method Methods 0.000 claims abstract description 80
- 230000008033 biological extinction Effects 0.000 claims abstract description 60
- 239000002131 composite material Substances 0.000 claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 230000000694 effects Effects 0.000 claims abstract description 37
- 239000012790 adhesive layer Substances 0.000 claims abstract description 21
- 230000009471 action Effects 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims description 75
- 238000000576 coating method Methods 0.000 claims description 75
- 229920002799 BoPET Polymers 0.000 claims description 65
- 229920002635 polyurethane Polymers 0.000 claims description 42
- 239000004814 polyurethane Substances 0.000 claims description 42
- 238000013329 compounding Methods 0.000 claims description 22
- 238000007774 anilox coating Methods 0.000 claims description 21
- 239000003973 paint Substances 0.000 claims description 21
- 238000000465 moulding Methods 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 14
- 238000001771 vacuum deposition Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 7
- 239000005083 Zinc sulfide Substances 0.000 claims description 6
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 6
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 125000005442 diisocyanate group Chemical group 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920001610 polycaprolactone Polymers 0.000 claims description 3
- 239000004632 polycaprolactone Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims description 3
- 150000003077 polyols Chemical class 0.000 claims description 3
- 239000002243 precursor Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000000007 visual effect Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000123 paper Substances 0.000 description 68
- 239000011521 glass Substances 0.000 description 11
- 239000003292 glue Substances 0.000 description 11
- 239000004576 sand Substances 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000007639 printing Methods 0.000 description 5
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- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000001259 photo etching Methods 0.000 description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 2
- 229960001763 zinc sulfate Drugs 0.000 description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 239000011087 paperboard Substances 0.000 description 1
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- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
The invention discloses laser hollowed-out transfer paper and a preparation method thereof, wherein the laser hollowed-out transfer paper comprises an imaging layer (1), a extinction layer (2), a medium layer (3), a water-based composite adhesive layer (4) and a bottom paper layer (5), and the imaging layer (1), the extinction layer (2), the medium layer (3), the water-based composite adhesive layer (4) and the bottom paper layer (5) are sequentially and compositely connected; patterns with different laser effects are arranged on one side, close to the extinction layer (2), of the imaging layer (1), hollow patterns are arranged on one side, close to the imaging layer (1), of the extinction layer (2), and the imaging layer (1) displays corresponding laser hollow patterns under the action of the extinction layer (2); the method has good visual effect and anti-counterfeiting effect, and can be simple and easy to operate, and the cost for manufacturing the hollowed-out laser pattern is reduced.
Description
Technical Field
The invention relates to the technical field of printing packaging paper, in particular to laser hollowed-out transfer paper and a preparation method thereof.
Background
At present, the paper varieties in the market are various, and the novel printing and packaging paper is widely applied in a plurality of industries; the composite transfer paper is formed by compositing base paper or paperboard with a transfer aluminized film through a composite adhesive and stripping the base film;
the transfer paper with laser anti-counterfeiting technology is applied to high-end products in a large quantity; the laser transfer paper has unique laser visual effect, improves the appearance grade of the product and has certain anti-counterfeiting performance, however, the existing preparation process of the laser transfer paper adopts a hollowed-out layer formed on the laser transfer paper through a hollowed-out printing process, and the hollowed-out printing process is complex and has higher manufacturing cost.
Disclosure of Invention
The invention aims to disclose laser hollowed-out transfer paper and a preparation method thereof, so as to achieve the purposes of simple preparation process and reduced manufacturing cost on the basis of good visual effect and anti-counterfeiting effect.
The invention solves the technical problems by adopting the following technical scheme: the laser hollowed-out transfer paper comprises an imaging layer, a extinction layer, a medium layer, a water-based composite adhesive layer and a bottom paper layer, wherein the imaging layer, the extinction layer, the medium layer, the water-based composite adhesive layer and the bottom paper layer are sequentially and compositely connected;
the imaging layer is close to the pattern that is equipped with different laser effect on one side of extinction layer, extinction layer is close to imaging layer one side and is equipped with the fretwork decorative pattern, imaging layer shows the laser fretwork pattern that corresponds under extinction layer's effect.
In a further embodiment of the invention, the imaging layer adopts raw materials of polycaprolactone polyol, diisocyanate, epoxy resin, dihydric alcohol, ammonia water and ethylenediamine, and the weight ratio of the raw materials is (30-35): (25-28): (6-8): (10-16): (4-6): the polyurethane laser paint of (8-10).
In a further embodiment of the present invention, the material of the extinction layer is one or more of transparent polyurethane transfer coating, fluorescent color polyurethane transfer coating, and ultraviolet fluorescent polyurethane transfer coating.
In a further embodiment of the present invention, the dielectric layer is made of vacuum aluminum plating or vacuum zinc plating.
In a further embodiment of the invention, the grammage of the base paper layer is 32g/m 2 -450g/m 2 。
A laser hollowed-out transfer paper and a preparation method thereof comprise the following steps:
firstly, coating the imaging layer on a PET film, putting the PET film coated with the imaging layer into an oven for baking, taking out the PET film after baking, putting the PET film on a molding press, pressing one side of the imaging layer far away from the PET film by using the molding press, and obtaining a laser transfer film after pressing;
placing the prepared laser transfer film on a coating machine, and coating a extinction layer on one side of an imaging layer far away from the PET film through the coating machine to obtain a laser hollowed-out transfer film;
placing the prepared laser hollow transfer film on a vacuum coating machine, and coating a dielectric layer on one side of the extinction layer far away from the PET film to obtain a laser hollow composite film;
placing the prepared laser hollow composite film on a compounding machine, coating a water-based composite adhesive layer on one side of the dielectric layer far away from the PET film, and adhering and compounding a bottom paper layer through the water-based composite adhesive layer to obtain a laser hollow transfer paper front material;
and stripping the PET film from the prepared laser hollow transfer paper precursor to obtain the laser hollow transfer paper.
In a further embodiment of the present invention, the preparation method specifically comprises: and (3) placing the imaging on a coating machine, coating a extinction layer by using a gravure engraving anilox roller, and displaying different laser hollowed-out pattern patterns on the coated imaging layer under the action of the extinction layer.
In a further embodiment of the present invention, the thickness of the PET film is 13 μm to 18. Mu.m.
In a further embodiment of the present invention, the dielectric layer has a thickness of 0.02 μm to 0.04 μm.
The invention has the following beneficial effects:
the invention directly carries out hollowed-out effect on the laser pattern, and carries out extinction treatment by one or more of transparent polyurethane transfer coating, fluorescent color polyurethane transfer coating and ultraviolet fluorescent polyurethane transfer coating, so that the laser hollowed-out effect of different pattern patterns with complex and changeable patterns can be generated on the basis, a hollowed-out layer is not required to be formed by the traditional hollowed-out printing process, the hollowed-out layer has good visual effect and anti-counterfeiting effect, and the method can be simple and easy to operate, and the cost for manufacturing the hollowed-out laser pattern is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a process flow diagram of an embodiment of the present invention;
the labels in the figures are: 1-an imaging layer; 2-a matting layer; 3-a dielectric layer; 4-an aqueous composite glue layer; 5-a bottom paper layer.
Detailed Description
The technical scheme of the invention is further described below with reference to the embodiment and the attached drawings.
The embodiment of the invention provides laser hollowed-out transfer paper which comprises an imaging layer 1, a extinction layer 2, a medium layer 3, a water-based composite adhesive layer 4 and a bottom paper layer 5, wherein the imaging layer 1, the extinction layer 2, the medium layer 3, the water-based composite adhesive layer 4 and the bottom paper layer 5 are sequentially and compositely connected.
The imaging layer 1 is close to the pattern that is equipped with different laser effect on one side of extinction layer 2, extinction layer 2 is close to imaging layer 1 one side and is equipped with the fretwork decorative pattern, imaging layer 1 shows the laser fretwork pattern that corresponds under extinction layer 2's effect.
The imaging layer 1 adopts raw materials of polycaprolactone polyol, diisocyanate, epoxy resin, dihydric alcohol, ammonia water and ethylenediamine, and the weight ratio of the raw materials is (30-35): (25-28): (6-8): (10-16): (4-6): the polyurethane laser paint of (8-10).
The imaging layer 1 made of the material has better stability and chemical resistance on the basis of the prior art.
The extinction layer 2 is made of one or more of transparent polyurethane transfer paint, fluorescent color polyurethane transfer paint and ultraviolet fluorescent polyurethane transfer paint.
The extinction layer 2 made of the material has better extinction reflection effect, and laser hollowed-out patterns between the imaging layer 1 and the extinction layer 2 can be better displayed.
The material of the dielectric layer 3 is vacuum aluminized or vacuum zinc sulfide plated; the grammage of the base paper layer 5 is 32g/m 2 -450g/m 2 。
The invention provides a preparation method of laser hollowed-out transfer paper, which comprises the following steps:
firstly, coating the imaging layer 1 on a PET film, putting the PET film coated with the imaging layer 1 into an oven for baking, taking out the PET film after baking, putting the PET film on a molding press, using the molding press to press one side of the imaging layer 1 far away from the PET film, and obtaining a laser transfer film after pressing;
placing the prepared laser transfer film on a coating machine, and coating a extinction layer 2 on one side of an imaging layer 1 far away from the PET film through the coating machine to obtain a laser hollowed-out transfer film;
placing the prepared laser hollow transfer film on a vacuum coating machine, and coating a dielectric layer on one side of the extinction layer 2 far away from the PET film to obtain a laser hollow composite film;
placing the prepared laser hollow composite film on a compounding machine, coating an aqueous composite adhesive layer 4 on one side of the medium layer 3 far away from the PET film, and adhering and compounding a bottom paper layer 5 through the aqueous composite adhesive layer 4 to obtain a laser hollow transfer paper front material;
and stripping the PET film from the prepared laser hollow transfer paper precursor to obtain the laser hollow transfer paper.
The preparation method specifically comprises the following steps: and placing the imaging layer 1 on a coating machine, coating the extinction layer 2 by using a gravure engraving anilox roller, and displaying different laser hollowed-out pattern patterns on the coated imaging layer 1 under the action of the extinction layer 2.
The thickness of the PET film is 13-18 mu m; the thickness of the dielectric layer (3) is 0.02-0.04 mu m.
It should be noted that: the laser hollowed-out transfer paper has good laser hollowed-out visual effect, and meanwhile, different laser effect patterns can be made by a simple method, so that expensive photoetching laser pattern mould pressing plates are reduced due to the limitation of a laser photoetching machine;
the invention can generate the laser hollowed-out effect of different patterns with complex and changeable patterns on the basis by using the common plain plate or other color plates and adopting the principle of paint corrosion extinction, and has the advantages of good visual effect and anti-counterfeiting effect, simplicity and easiness in operation, low cost for manufacturing the hollowed-out laser patterns and the like.
According to the above effects, the present invention provides the following embodiments.
Example 1
In the embodiment, the thickness of the PET film is 15 mu m, the coating of the imaging layer 1 is polyurethane, the mould pressing laser pattern of the imaging layer 1 is a plain rainbow, the intaglio engraving anilox roller pattern is in a diaphragm shape, and the PET film is uniformly typeset and distributed according to the design effect; the extinction layer 2 paint is transparent polyurethane; the dielectric layer 3 is an aluminized layer; the water-based composite adhesive layer 4 is water-based polyurethane; the base paper layer 5 has a gram weight of 38g/m 2 Is prepared from the tipping base paper.
Coating the imaging layer 1 paint on a PET film, and pressing the patterns with the iridescent laser effect by a molding press to form an iridescent laser transfer film for later use;
coating the rainbow laser transfer film on a coating machine by using a gravure engraving anilox roller with a design pattern of an aperture to form an extinction layer 2, wherein the coated imaging layer 1 displays aperture-shaped laser hollowed-out pattern, namely the aperture laser hollowed-out transfer film, under the action of the extinction layer 2 for later use;
plating metal aluminum on the aperture laser hollow transfer film on a vacuum coating machine to prepare an aperture laser hollow composite film for later use;
and coating the aperture laser hollow composite film on a compounding machine, compounding the aqueous composite glue with base paper, and peeling off the PET film to obtain the aperture laser hollow transfer paper.
Example 2
In the embodiment, the thickness of the PET film is 15 mu m, the coating of the imaging layer 1 is polyurethane, the mould pressing laser pattern of the imaging layer 1 is a plain rainbow, the intaglio engraving anilox roller pattern is in a auspicious cloud shape, and the PET film is uniformly typeset and distributed according to the design effect; the extinction layer 2 paint is transparent polyurethane; the dielectric layer 3 is an aluminized layer; the water-based composite adhesive layer 4 is water-based polyurethane; the base paper layer 5 has a gram weight of 38g/m 2 Is prepared from the tipping base paper.
The imaging layer 1 paint is coated on a PET film, and patterns with iridescent laser effect are pressed by a molding press to be made into an iridescent laser transfer film for standby;
coating the rainbow laser transfer film on a coating machine by using a gravure engraving anilox roller with a design pattern of auspicious cloud, wherein the coated imaging layer 1 displays an auspicious cloud laser hollowed-out pattern, namely, an auspicious Yun Leishe hollowed-out transfer film under the action of the extinction layer 2 for later use;
the auspicious Yun Leishe hollow transfer film is plated with metal aluminum on a vacuum coating machine to form an auspicious Yun Leishe hollow composite film for later use;
coating the auspicious cloud laser hollow composite film on a compounding machine, compounding with water-based compound glue and base paper, and stripping the PET film to obtain the auspicious Yun Leishe hollow transfer paper.
Example 3
In the embodiment, the thickness of the PET film is 15 mu m, the coating of the imaging layer 1 is polyurethane, the mould pressing laser pattern of the imaging layer 1 is a rainbow of a plain surface, the pattern of the intaglio engraving anilox roller is in a water drop shape, and the PET film is uniformly typeset and distributed according to the design effect; the extinction layer 2 paint is transparent polyurethane; the dielectric layer 3 is an aluminized layer; the water-based composite adhesive layer 4 is water-based polyurethane; the base paper layer 5 has a gram weight of 38g/m 2 Is prepared from the tipping base paper.
The imaging layer 1 paint is coated on a PET film, and patterns with iridescent laser effect are pressed by a molding press to be made into an iridescent laser transfer film for standby;
coating the rainbow laser transfer film on a coating machine by using a gravure engraving anilox roller with a water drop-shaped design pattern to form a extinction layer 2, and displaying a water drop-shaped laser hollowed-out pattern of the coated imaging layer 1 under the action of the transparent extinction layer 2, namely the water drop laser hollowed-out transfer film for later use;
the water drop laser hollow transfer film is plated with metal aluminum on a vacuum coating machine to be made into a water drop laser hollow composite film for standby;
and coating the water-based composite glue and the base paper on the water-drop laser hollow composite film on a compounding machine, and peeling off the PET film to obtain the water-drop laser hollow transfer paper.
Example 4
In the embodiment, the thickness of the PET film is 15 mu m, the coating of the imaging layer 1 is polyurethane, the mould pressing laser pattern of the imaging layer 1 is fine sand, the pattern of the intaglio engraved anilox roller is aperture-shaped, the PET film is uniformly typeset and distributed according to the design effect, the coating of the extinction layer 2 is ultraviolet fluorescent polyurethane transfer coating, the medium layer 3 is an aluminized layer, the aqueous composite adhesive layer 4 is aqueous polyurethane, and the bottom paper layer 5 is 38g/m in gram weight 2 Is prepared from the tipping base paper.
The imaging layer 1 coating is coated on a PET film, and patterns with a sand discharge laser effect are pressed by a molding press to form a sand discharge laser transfer film for standby;
coating the quicksand laser transfer film on a coating machine by using a gravure engraving anilox roller with a design pattern of a diaphragm shape to form a extinction layer 2, wherein the coated imaging layer 1 displays a diaphragm-shaped laser hollowed-out pattern under the action of the ultraviolet fluorescence extinction layer 2, namely the ultraviolet fluorescence diaphragm laser hollowed-out transfer film for later use;
the ultraviolet fluorescent aperture laser hollow transfer film is plated with metal aluminum on a vacuum coating machine to be made into an ultraviolet fluorescent aperture laser hollow composite film for later use;
and coating the water-based composite glue and the base paper on the ultraviolet fluorescent aperture laser hollow composite film on a compounding machine, and peeling the PET film to obtain the ultraviolet fluorescent aperture laser hollow transfer paper.
Example 5
In the embodiment, the PET film has a thickness of 15 mu m, the imaging layer 1 paint is polyurethane, the imaging layer 1 mould pressing laser pattern is fine sand, the intaglio engraved anilox roller pattern is in a auspicious cloud shape, the PET film is uniformly typeset and distributed according to the design effect, the extinction layer 2 paint is ultraviolet fluorescent polyurethane transfer paint, the medium layer 3 is an aluminized layer, the aqueous composite glue layer 4 is aqueous polyurethane, and the bottom paper layer 5 is gram weight g/m 2 Is prepared from the tipping base paper.
The imaging layer 1 coating is coated on a PET film, and patterns with a sand discharge laser effect are pressed by a molding press to form a sand discharge laser transfer film for standby;
coating the quicksand laser transfer film with a matt layer 2 on a coating machine by using a gravure engraving anilox roller with a design pattern of auspicious cloud, wherein the coated imaging layer 1 displays an auspicious cloud laser hollowed-out pattern, namely, an ultraviolet fluorescence auspicious Yun Leishe hollowed-out transfer film under the action of the ultraviolet fluorescence matt layer 2 for later use;
the ultraviolet fluorescence auspicious Yun Leishe hollow transfer film is plated with metal aluminum on a vacuum coating machine to be made into an ultraviolet fluorescence auspicious Yun Leishe hollow composite film for later use;
and coating the ultraviolet fluorescence auspicious cloud laser hollowed-out composite film on a compounding machine, compounding with water-based compound glue and base paper, and then stripping the PET film to obtain the ultraviolet fluorescence auspicious Yun Leishe hollowed-out transfer paper.
Example 6
In the embodiment, the thickness of the PET film is 15 mu m, the coating of the imaging layer 1 is polyurethane, the mould pressing laser pattern of the imaging layer 1 is fine sand, the pattern of the intaglio engraved anilox roller is water-drop-shaped, the PET film is uniformly typeset and distributed according to the design effect, the coating of the extinction layer 2 is ultraviolet fluorescent polyurethane transfer coating, the medium layer 3 is an aluminized layer, the aqueous composite adhesive layer 4 is aqueous polyurethane, and the bottom paper layer 5 is 38g/m in gram weight 2 Is prepared from the tipping base paper.
The imaging layer 1 coating is coated on a PET film, and patterns with a sand discharge laser effect are pressed by a molding press to form a sand discharge laser transfer film for standby;
coating the quicksand laser transfer film on a coating machine by using a gravure engraving anilox roller with a water drop-shaped design pattern to form a extinction layer 2, and displaying a water drop-shaped laser hollowed-out pattern of the coated imaging layer 1 under the action of the ultraviolet fluorescent extinction layer 2, namely, the ultraviolet fluorescent water drop laser hollowed-out transfer film for later use;
the ultraviolet fluorescent water drop laser hollowed-out transfer film is plated with metal aluminum on a vacuum coating machine to be made into an ultraviolet fluorescent water drop laser hollowed-out composite film for later use;
and coating the ultraviolet fluorescent water drop laser hollowed-out composite film on a compounding machine, compounding the water-based compound glue and the base paper, and peeling off the PET film to obtain the ultraviolet fluorescent water drop laser hollowed-out transfer paper.
Example 7
In the embodiment, the thickness of the PET film is 15 mu m, the coating of the imaging layer 1 is polyurethane, and the molded laser pattern of the imaging layer 1 is glassThe pattern of the embossing roller and the intaglio engraved anilox roller is in a ring shape, and is uniformly typeset and distributed according to the design effect, the paint of the extinction layer 2 is colorful fluorescent polyurethane, the medium layer 3 is a zinc sulfide layer, the aqueous composite adhesive layer 4 is aqueous polyurethane, and the bottom paper layer 5 is 38g/m in gram weight 2 Is prepared from the tipping base paper.
The imaging layer 1 coating is coated on a PET film, and patterns with the glass broken flower laser effect are pressed by a molding press to form a glass broken flower laser transfer film for standby;
coating the glass broken laser transfer film with a gravure engraving anilox roller with a design pattern of aperture on a coating machine to form an extinction layer 2, wherein the coated imaging layer 1 displays aperture-shaped laser hollowed-out pattern under the action of color fluorescent polyurethane, namely the color fluorescent aperture laser hollowed-out transfer film for later use;
zinc sulfide is plated on the color fluorescent aperture laser hollow transfer film on a vacuum coating machine to prepare a transparent color fluorescent aperture laser hollow composite film for later use;
and coating the transparent color fluorescent aperture laser hollowed-out composite film on a compounding machine, compounding the aqueous composite glue with base paper, and peeling off the PET film to obtain the transparent color fluorescent aperture laser hollowed-out transfer paper.
Example 8
In the embodiment, the PET film has a thickness of 15 mu m, the imaging layer 1 paint is polyurethane, the imaging layer 1 mould pressing laser pattern is glass broken flower, the intaglio engraved anilox roller pattern is auspicious cloud, the PET film is uniformly typeset and distributed according to the design effect, the extinction layer 2 paint is color fluorescent polyurethane, the medium layer 3 is zinc sulfide layer, the water-based composite glue layer 4 is water-based polyurethane, and the bottom paper layer 5 has a gram weight of 38g/m 2 Is prepared from the tipping base paper.
The imaging layer 1 coating is coated on a PET film, and patterns with the glass broken flower laser effect are pressed by a molding press to form a glass broken flower laser transfer film for standby;
coating the glass broken flower laser transfer film with a matt layer 2 on a coating machine by using a gravure engraving anilox roller with a design pattern of auspicious cloud, wherein the coated imaging layer 1 displays auspicious cloud laser hollowed-out pattern, namely a colorful fluorescent auspicious Yun Leishe hollowed-out transfer film under the action of colorful fluorescent polyurethane for later use;
zinc sulfate is plated on the color fluorescence auspicious Yun Leishe hollow transfer film on a vacuum coating machine to prepare a transparent color fluorescence auspicious cloud laser hollow composite film for later use;
and coating the transparent color fluorescent cloud laser hollowed-out composite film on a compounding machine, compounding the aqueous composite adhesive with base paper, and peeling off the PET film to obtain the transparent color fluorescent cloud laser hollowed-out transfer paper.
Example 9
In the embodiment, the PET film has a thickness of 15 mu m, the imaging layer 1 paint is polyurethane, the imaging layer 1 mould pressing laser pattern is glass broken flower, the intaglio engraved anilox roller pattern is water drop-shaped, the PET film is uniformly typeset and distributed according to the design effect, the extinction layer 2 paint is color fluorescent polyurethane, the medium layer 3 is zinc sulfide layer, the water-based composite adhesive layer 4 is water-based polyurethane, and the bottom paper layer 5 has a gram weight of 38g/m 2 Is prepared from the tipping base paper.
The imaging layer 1 coating is coated on a PET film, and patterns with the glass broken flower laser effect are pressed by a molding press to form a glass broken flower laser transfer film for standby;
coating the glass broken flower laser transfer film on a coating machine by using a gravure engraving anilox roller with a water drop-shaped design pattern to form a extinction layer 2, wherein the coated imaging layer 1 displays a water drop-shaped laser hollowed-out pattern under the action of color fluorescent polyurethane, namely the color fluorescent water drop laser hollowed-out transfer film for later use;
zinc sulfate is plated on the transparent colorful fluorescent water drop laser hollow transfer film on a vacuum coating machine to prepare a transparent colorful fluorescent water drop laser hollow composite film for standby;
and coating the transparent colorful fluorescent water drop laser hollowed-out composite film on a compounding machine, compounding the aqueous composite glue with base paper, and peeling off the PET film to obtain the transparent colorful fluorescent water drop laser hollowed-out transfer paper.
The invention directly makes the hollowed-out effect on the laser pattern, can generate the laser hollowed-out effect of different pattern patterns with complex and changeable patterns on the basis by the principle of corrosion extinction of the coating, has good visual effect and anti-counterfeiting effect, and has the advantages of simplicity and easiness in operation and reduction of the cost for manufacturing the hollowed-out laser pattern.
The sequence of the above embodiments is only for convenience of description, and does not represent the advantages and disadvantages of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The laser hollowed-out transfer paper is characterized by comprising an imaging layer (1), a extinction layer (2), a medium layer (3), a water-based composite adhesive layer (4) and a bottom paper layer (5), wherein the imaging layer (1), the extinction layer (2), the medium layer (3), the water-based composite adhesive layer (4) and the bottom paper layer (5) are sequentially and compositely connected;
the imaging layer (1) is close to patterns with different laser effects on one side of the extinction layer (2), the extinction layer (2) is close to the imaging layer (1) and is provided with hollowed-out patterns, and the imaging layer (1) displays corresponding laser hollowed-out patterns under the action of the extinction layer (2).
2. The laser hollowed-out transfer paper according to claim 1, wherein the imaging layer (1) adopts raw materials of polycaprolactone polyol, diisocyanate, epoxy resin, dihydric alcohol, ammonia water and ethylenediamine, and the weight ratio is (30-35): (25-28): (6-8): (10-16): (4-6): the polyurethane laser paint of (8-10).
3. The laser hollowed-out transfer paper according to claim 1, wherein the medium layer (3) is made of vacuum aluminized or vacuum zinc sulfide plated.
4. According to claim 1The laser hollowed-out transfer paper is characterized in that the gram weight of the base paper layer (5) is 32g/m 2 -450g/m 2 。
5. The preparation method of the laser hollowed-out transfer paper is characterized by comprising the following steps of:
firstly, coating the imaging layer (1) on a PET film, putting the PET film coated with the imaging layer (1) into an oven for baking, taking out the PET film after baking, putting the PET film on a molding press, using the molding press to press one side of the imaging layer (1) far away from the PET film, and obtaining a laser transfer film after finishing pressing;
placing the prepared laser transfer film on a coating machine, and coating a extinction layer (2) on one side of an imaging layer (1) far away from the PET film through the coating machine to obtain a laser hollowed-out transfer film;
placing the prepared laser hollow transfer film on a vacuum coating machine, and coating a dielectric layer on one side of the extinction layer (2) far away from the PET film to obtain a laser hollow composite film;
placing the prepared laser hollow composite film on a compounding machine, coating an aqueous composite adhesive layer (4) on one side of the medium layer (3) far away from the PET film, and adhering and compounding a bottom paper layer (5) through the aqueous composite adhesive layer (4) to obtain a laser hollow transfer paper front material;
and stripping the PET film from the prepared laser hollow transfer paper precursor to obtain the laser hollow transfer paper.
6. The laser hollowed-out transfer paper and the preparation method thereof according to claim 5 are characterized in that the preparation method specifically comprises the following steps: and (3) placing the imaging layer (1) on a coating machine, coating the extinction layer (2) by using a gravure engraving anilox roller, and displaying different laser hollowed-out pattern patterns on the coated imaging layer (1) under the action of the extinction layer (2).
7. The laser hollowed-out transfer paper and the preparation method thereof according to claim 5, wherein the thickness of the PET film is 13-18 μm.
8. The laser hollowed-out transfer paper and the preparation method thereof according to claim 5, wherein the thickness of the dielectric layer (3) is 0.02-0.04 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311790843.1A CN117661375A (en) | 2023-12-22 | 2023-12-22 | Laser hollowed-out transfer paper and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311790843.1A CN117661375A (en) | 2023-12-22 | 2023-12-22 | Laser hollowed-out transfer paper and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117661375A true CN117661375A (en) | 2024-03-08 |
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ID=90075156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311790843.1A Pending CN117661375A (en) | 2023-12-22 | 2023-12-22 | Laser hollowed-out transfer paper and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117661375A (en) |
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2023
- 2023-12-22 CN CN202311790843.1A patent/CN117661375A/en active Pending
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