CN114559758B - Production process of electric aluminum hot stamping foil - Google Patents
Production process of electric aluminum hot stamping foil Download PDFInfo
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- CN114559758B CN114559758B CN202210293035.3A CN202210293035A CN114559758B CN 114559758 B CN114559758 B CN 114559758B CN 202210293035 A CN202210293035 A CN 202210293035A CN 114559758 B CN114559758 B CN 114559758B
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- release
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention provides a production process of an electrochemical aluminum stamping foil, which is characterized in that the electrochemical aluminum stamping foil to be cut is provided with a local release layer through a local release process, wherein the local release layer is provided with a release area coated with release materials and a non-release area not coated with release materials, and the non-release area is configured as a cutting area of a cutting knife. According to the invention, the release layer is coated by positioning through a customized local release process, so that the release layer of the electrochemical aluminum hot stamping foil is simultaneously provided with a release region coated with release material and a non-release region not coated with release material. In the slitting process, the fragile release layer is prevented from being in direct contact with the cutter body to generate fragments, so that the falling fragments and powder are prevented from being adsorbed and accumulated on the surface of a printing product or the surface of a gold stamping plate engraving area to influence the heat conductivity and the stamping area of the gold stamping plate, and the definition of a stamping pattern and the stamping quality of a product are finally ensured.
Description
Technical Field
The invention relates to the technical field of printed packaging materials, in particular to a production process of an electrochemical aluminum hot stamping foil.
Background
The electric aluminum hot stamping foil is generally composed of a base film layer, a release layer, a coloring layer, a vacuum aluminum plating layer and a back adhesive layer, and the preparation method comprises the steps of coating the release layer and the coloring layer on the base film layer, coating the back adhesive layer after vacuum aluminum plating, drying, slitting and rewinding.
Because the release layer of the electrochemical aluminum stamping foil is brittle, the fragile electrochemical aluminum release layer can be damaged in the slitting process of the electrochemical aluminum stamping foil, fragments are often formed around the fracture of the electrochemical aluminum release layer, and the fallen coating fragments are easy to splash around the stamping patterns or characters to present a shiny color point or color lump, which is commonly called as a 'flying gold' phenomenon. When the flying gold is serious, the dropped powder can be adsorbed and accumulated on the surface of a printing product or the surface of an engraving area of the gold stamping plate, so that the heat conductivity and the stamping area of the gold stamping plate are seriously influenced, the definition of a stamping pattern is reduced, and the stamping quality of a product is directly influenced.
Disclosure of Invention
The invention aims to provide a production process of an electrochemical aluminum stamping foil, which aims to solve the problem of gold flying and gold falling at two ends of a slit in the slitting process of the existing electrochemical aluminum stamping foil.
In order to solve the problems, the invention adopts the following technical scheme:
the production process of the electrochemical aluminum stamping foil is characterized in that the electrochemical aluminum stamping foil to be cut is provided with a local release layer through a local release process, the local release layer is provided with a release area coated with release material and a non-release area not coated with release material, and the non-release area is configured as a cutting area of a cutting knife.
The local release process adopts a local non-feeding customized plate roller, and the customized plate roller is provided with a light plate with a preset width.
The specific process steps comprise:
s1, determining the slitting width
Determining the slitting trend of the electrochemical aluminum stamping foil according to the gold stamping pattern, and determining the slitting width of the small-volume electrochemical aluminum stamping foil according to the product specification;
s2, determining a slitting optimal scheme
According to the standard width of the electrochemical aluminum stamping foil and the slitting width of the small-roll electrochemical aluminum stamping foil, determining the optimal collocation slitting scheme through calculation and analysis, wherein the slitting scheme comprises the slitting number of the small-roll electrochemical aluminum stamping foil and the slitting area width between adjacent slitting rolls;
s3, customizing a relief roller coated with release materials
Customizing a relief roller according to the slitting scheme of S2, wherein the relief roller is provided with a coating plate for feeding and a light plate without feeding, and the width of the light plate is determined based on the width of the slitting area of S2;
s4, coating release material
The customized relief roller is adopted to coat release materials on the surface of the base film, so that a release area coated with the release materials and a local release layer of a non-release area not coated with the release materials are obtained, the release area of the loading can ensure that the aluminized layer and the base film layer are mutually peeled off, the foil is convenient to detach during thermoprinting, the non-release area without the loading is a cutting area which cannot be peeled off, and the non-release area is used as a reference part for cutting a cutting roll, so that a cutter body and the release area are effectively isolated, and the release layer of the release area is prevented from being in direct contact with the cutter body;
s5, coating a coloring layer
Coating color paint on the surface of the local release layer;
s6, aluminizing
Evaporating a metal aluminum layer on the surface of the coloring layer through vacuum aluminizing;
s7, back coating
Coating back glue on the surface of the aluminized layer to form an adhesive layer;
s8, slitting
Adjusting the position of a slitting knife according to a preset slitting scheme to enable the cutting edge of the slitting knife to correspond to the center of a slitting area of the hot stamping foil of the electrochemical aluminum;
s9, gilding
And stamping the cut small rolls of electric aluminum stamping foil by a machine.
The electrochemical aluminum hot stamping foil obtained by the production process comprises a base film layer, a local release layer, a coloring layer, an aluminum plating layer and an adhesive layer from bottom to top in sequence;
the local release layer comprises a release area coated with a release agent and a non-release area not coated with the release agent, and the release area is used for isolating the coloring layer from the base film layer so as to facilitate the release of foil during hot stamping; the non-release area is used as a reference part for cutting the coil, and the part cannot be peeled off due to the fact that the release agent is not coated, so that the cutter body and the release area are effectively isolated in the cutting process, and the release layer of the release area is prevented from being in direct contact with the cutter body.
The invention relates to a production process of an electrochemical aluminum stamping foil, which is finally determined by fully and deeply analyzing the technical level of generating a 'flying gold' phenomenon, wherein a scientific and reasonable slitting scheme is planned in advance at the front end of the process to determine a slitting area in a rear end slitting process, and a customized release material coating plate roller is adopted to perform non-feeding treatment on the slitting area, so that a release layer of the electrochemical aluminum stamping foil is simultaneously provided with a release area coated with release material and a non-release area not coated with release material, and the release area coated with release material enables an aluminum plating layer and a base film layer to be isolated, thereby facilitating foil stripping during stamping; the aluminum plating layer and the base film layer cannot be peeled off due to the fact that the release material is not coated in the non-release area, so that a large standard wide roll can be cut into small rolls with preset wide widths as a cutting area, fragments generated by direct contact of the fragile release layer and a cutter body in the cutting process are avoided, further, the falling fragments and powder are prevented from being adsorbed and accumulated on the surface of a printing product or the surface of a gold stamping plate carving area to influence the heat conductivity and the stamping area of the gold stamping plate, and the definition of a hot stamping pattern and the hot stamping quality of a product are finally ensured.
Drawings
Fig. 1 is a schematic diagram of a specific slitting scheme in an electrochemical aluminum hot stamping foil production process according to the first embodiment (the blank part in the figure is a release zone coated with release material, and the hatched part is a non-release zone not coated with release material);
fig. 2 is a schematic diagram of a specific slitting scheme in the production process of an electrochemical aluminum stamping foil according to the second embodiment (the blank part in the figure is a release zone coated with release material, and the hatched part is a non-release zone not coated with release material);
FIG. 3 is a schematic view of the interlayer structure of the inventive electro-chemical aluminum stamping foil;
in the figure: 1.2 parts of a base film layer, 21 parts of a release layer, 22 parts of a release region, 3 parts of a coloring layer, 4 parts of an aluminized layer, 5 parts of an adhesive layer.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Example 1
The production process of the electric aluminum hot stamping foil comprises the following steps:
s1, determining a slitting width: the product 1 with large electrochemical aluminum consumption in the actual production of the present company is selected, the breadth of the small coil electrochemical aluminum A is 0.105m, and the electrochemical aluminum is longitudinally moved according to the pattern size of the gold stamping.
S2, determining optimal collocation of cutting: referring to fig. 1, the width of a large-volume electrochemical aluminum standard roll is 0.63m, the width of electrochemical aluminum A is 0.105m, and the optimal collocation is determined by calculation and analysis to divide the standard electrochemical aluminum into 5 rolls of A type electrochemical aluminum, and the width of a dividing and dividing area between adjacent dividing and dividing rolls is 0.003m.
S3, customizing electric engraving roller
According to the optimal collocation scheme of cutting, the local not-fed relief roller is customized, the relief roller is provided with a coating plate for feeding and a light plate not fed, and the longitudinal width of the light plate is 0.003m, so that the coating is not fed.
S4, coating release material
The release material was applied to the base film layer using a custom-made, partially non-fed, embossing roll. As shown in fig. 1, the blank portion is coated with a release material, and the shadow portion is not coated with a release material. The coating parameters were set to a coating weight of 1.0g/m 2 The machine speed is 95-105m/min, the fan frequency is 55HZ, and the temperature of the oven is as follows: 80-90 ℃, 110-120 ℃, 145-150 ℃.
S5, coating a coloring layer
And a normal surface coating step of uniformly coating the yellow layer coating liquid on the base film layer with the release material, wherein the machine speed is 95-105m/min, the coating amount is 1.2g/m < 2 >, the oven temperature is 85-90 ℃, 120-130 ℃, 145-150 ℃ and 125-130 ℃.
S6, aluminizing
And in the normal aluminizing process, the aluminizing thickness is 0.05um, the temperature is controlled within 80-130 ℃, and the yellow layer becomes golden after aluminizing.
S7, back coating
A normal back coating process, wherein a back adhesive layer coating is coated according to the gold stamping adaptability requirement of the electrochemical aluminum, the coating weight is 1.5g/m < 2 >, the machine speed is 95-105m/min, the oven temperature is 85-90 ℃, 105-115 ℃, 125-135 ℃, 115-125 DEG C
S8, slitting
The slitting width is 0.105m, 5 rolls of small rolls are slit altogether, and the slitting blade is arranged in the middle of the slitting area with the width of 0.003m.
S9, gilding
And (3) stamping the cut small coil of electrochemical aluminum corresponding to the pattern specification by a machine, so as to finish the hot stamping work of the product 1 and solve the problem of gold flying on two sides of the stamping.
Example two
The embodiment relates to a production process of an electrochemical aluminum hot stamping foil, which comprises the following steps of:
s1, determining a slitting width: and selecting a product 2, a product 3 and a product 4 with large dosage of the electrochemical aluminum stamping foil in actual production of a certain company, and determining the breadth and trend of the electrochemical aluminum stamping foil according to the product specification. If the width of the small-roll electrochemical aluminum stamping foil B used by the product 2 is 0.15m, the width of the small-roll electrochemical aluminum stamping foil C used by the product 3 is 0.25m, the width of the small-roll electrochemical aluminum stamping foil D used by the product 4 is 0.20m, and the cutting direction of the electrochemical aluminum stamping foil is determined to be longitudinal according to the pattern size of the required gold stamping.
S2, determining optimal slitting collocation: and according to the standard winding widths of the electrochemical aluminum stamping foils and the slitting widths of the three small-roll electrochemical aluminum stamping foils, determining the optimal collocation of the small-roll electrochemical aluminum stamping foils through calculation, analysis and slitting. As shown in figure 2, the standard roll width of the large-roll electrochemical aluminum stamping foil is 0.63m, the width of the electrochemical aluminum stamping foil B is 0.15m, the width of the electrochemical aluminum stamping foil C is 0.25m, and the width of the electrochemical aluminum stamping foil D is 0.20m. The optimal collocation scheme after calculation is that a large-volume electrochemical aluminum stamping foil of a standard rolled web is cut into a roll B type electrochemical aluminum stamping foil, a roll C type electrochemical aluminum stamping foil and a roll D type electrochemical aluminum stamping foil, and a cutting area of 0.003m is reserved between two adjacent small-volume electrochemical aluminum stamping foils.
S3, customizing electric engraving roller
And customizing the engraving roller according to the optimal collocation scheme of cutting, wherein the customized engraving roller is provided with a coating plate and a light plate, and the longitudinal width of the light plate is 0.003m.
S4, coating release material
Coating a release material on the base film layer by using a customized locally non-feeding relief roller; as shown in fig. 2, the blank part is coated with release material, the shadow part is not coated with release material, the coating parameters are respectively set to be that the coating amount is 1.1g/m2, the machine speed is 95-105m/min, the fan frequency is 55HZ, and the temperature of the oven is as follows in sequence: 85-90 ℃, 115-120 ℃, 135-140 ℃, 145-150 ℃.
S5, coating a coloring layer
And a normal surface coating step of uniformly coating the yellow layer coating liquid on the base film layer with the release material, wherein the machine speed is 95-105m/min, the coating amount is 1.0g/m2, the oven temperature is 90-95 ℃, 125-135 ℃, 125-130 ℃ and 125-130 ℃.
S6, aluminizing
And in the normal aluminizing process, the aluminizing thickness is 0.05um, the temperature is controlled within 100-130 ℃, and the yellow layer becomes golden after aluminizing.
S7, back coating
A normal back coating process, wherein a back adhesive layer coating is coated according to the gold stamping adaptability requirement of the electrochemical aluminum, the coating weight is 1.4g/m < 2 >, the machine speed is 100-110m/min, the oven temperature is 80-90 ℃, 110-115 ℃, 120-140 ℃ and 105-110 DEG C
S8, slitting
The slitting widths are respectively 0.15m, 0.25m and 0.20m, and the slitting blade is arranged in the middle of the slitting area with the width of 0.003m.
S9, gilding
Stamping the cut small coil of electrochemical aluminum corresponding to the pattern specification by a machine to finish the stamping work of the products 2, 3 and 4, and solve the problem of gold flying on two sides of the stamping.
The electrochemical aluminum hot stamping foil obtained through the production process in the embodiment comprises a base film layer 1, a local release layer 2, a coloring layer 3, an aluminum plating layer 4 and an adhesive layer 5 from bottom to top in sequence; the local release layer 2 comprises a release area 21 coated with a release agent and a non-release area 22 not coated with the release agent, wherein the release area 21 is used for isolating the coloring layer from the base film layer, so that the release agent is convenient to release foil during hot stamping; the non-release area 22 is used as a reference part for cutting the coil, and the part cannot be peeled off due to the fact that the release agent is not coated, so that the cutter body and the release area are effectively isolated in the cutting process, and the release layer of the release area is prevented from being in direct contact with the cutter body.
Compared with the traditional electrochemical aluminum stamping foil, the electrochemical aluminum stamping foil has the following main beneficial effects: the production process is simple and easy to control, the cost is low, the local release layer can be realized by only adding one customized local non-feeding plate roller, the traditional full release layer is replaced by the local release layer, the local non-feeding non-release area is used as a slitting part, the release layer of the release area is prevented from being directly contacted with a slitting knife, the phenomenon of gold flying generated when the knife body is contacted with the release layer is solved, and the quality and the production efficiency of printed products are improved.
The scope of the present invention is not limited to the above embodiments, but is intended to be within the scope of the appended claims, along with any modifications, equivalents, or improvements thereto, which are within the spirit and scope of the invention. The technical proposal is not described in detail and is known in the prior art. All the electrolytic aluminum which is the same as or equivalent to the technical scheme of the invention and solves the gold stamping and flying problem belong to the protection scope of the invention.
Claims (2)
1. A production process of an electrochemical aluminum stamping foil, which is characterized in that the electrochemical aluminum stamping foil to be cut is provided with a local release layer through a local release process, wherein the local release layer is provided with a release area coated with release material and a non-release area not coated with release material, and the non-release area is configured as a cutting area of a cutting knife;
the local release process adopts a local non-feeding customized plate roller, and the customized plate roller is provided with a light plate with a preset width;
the process comprises the following steps:
s1, determining the slitting width
Determining the slitting trend of the electrochemical aluminum stamping foil according to the gold stamping pattern, and determining the slitting width of the small-volume electrochemical aluminum stamping foil according to the product specification;
s2, determining a slitting optimal scheme
According to the standard width of the electrochemical aluminum stamping foil and the slitting width of the small-roll electrochemical aluminum stamping foil, determining the optimal collocation slitting scheme through calculation and analysis, wherein the slitting scheme comprises the slitting number of the small-roll electrochemical aluminum stamping foil and the slitting area width between adjacent slitting rolls;
s3, customizing a relief roller coated with release materials
Customizing a relief roller according to the slitting scheme of S2, wherein the relief roller is provided with a coating plate for feeding and a light plate without feeding, and the width of the light plate is determined based on the width of the slitting area of S2;
s4, coating release material
A customized relief roller is adopted to coat release materials on the surface of a base film, so that a release area coated with the release materials and a local release layer of a non-release area not coated with the release materials are obtained, the release area of the loading ensures that an aluminized layer and the base film layer are mutually peeled off, foil removal during thermoprinting is facilitated, the non-release area without the loading is a cutting area which cannot be peeled off and is used as a reference part for cutting a cutting roll, a cutter body and the release area are effectively isolated, and the release layer of the release area is prevented from being in direct contact with the cutter body;
s5, coating a coloring layer
Coating color paint on the surface of the local release layer;
s6, aluminizing
Evaporating a metal aluminum layer on the surface of the coloring layer through vacuum aluminizing;
s7, back coating
Coating back glue on the surface of the aluminized layer to form an adhesive layer;
s8, slitting
Adjusting the position of a cutting knife according to a preset cutting scheme, so that the cutting edge of the cutting knife corresponds to a non-release area of the hot stamping foil of the electrochemical aluminum;
s9, gilding
And stamping the cut small rolls of electric aluminum stamping foil by a machine.
2. An electrochemical aluminium stamping foil obtainable on the basis of the process according to claim 1, characterized in that,
the interlayer structure of the solar cell comprises a base film layer, a local release layer, a coloring layer, an aluminizing layer and an adhesive layer from bottom to top in sequence;
the local release layer includes a release region coated with a release agent and a non-release region not coated with a release agent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210293035.3A CN114559758B (en) | 2022-03-24 | 2022-03-24 | Production process of electric aluminum hot stamping foil |
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| CN202210293035.3A CN114559758B (en) | 2022-03-24 | 2022-03-24 | Production process of electric aluminum hot stamping foil |
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| CN114559758B true CN114559758B (en) | 2023-06-09 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02209289A (en) * | 1989-02-10 | 1990-08-20 | Toppan Printing Co Ltd | Transfer foil |
| JP3529914B2 (en) * | 1995-09-04 | 2004-05-24 | 大日本印刷株式会社 | Thermal transfer ribbon |
| CN2656140Y (en) * | 2003-11-01 | 2004-11-17 | 汕头市东田转印有限公司 | Transfer film having dummy surface and bright surface |
| CN105313516B (en) * | 2015-09-23 | 2018-09-28 | 武汉华工图像技术开发有限公司 | A kind of anti-fake blocking film and preparation method thereof with 3D effect |
| JP6661989B2 (en) * | 2015-11-16 | 2020-03-11 | 凸版印刷株式会社 | Protective layer transfer sheet |
| CN108215553B (en) * | 2017-12-31 | 2020-08-18 | 施莹莺 | Method for manufacturing glass surface thermoprint finishing film |
| CN108327416B (en) * | 2018-04-16 | 2023-07-28 | 江苏学泰印务有限公司 | Water-based environment-friendly thermal transfer film and preparation method thereof |
| CN216033461U (en) * | 2020-04-29 | 2022-03-15 | 深圳劲嘉集团股份有限公司 | Local aluminum-plated multi-medium anti-counterfeiting transfer film and production equipment thereof |
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