CN114559758A - Production process of alumite hot stamping foil - Google Patents
Production process of alumite hot stamping foil Download PDFInfo
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- CN114559758A CN114559758A CN202210293035.3A CN202210293035A CN114559758A CN 114559758 A CN114559758 A CN 114559758A CN 202210293035 A CN202210293035 A CN 202210293035A CN 114559758 A CN114559758 A CN 114559758A
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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 hot stamping foil, which is characterized in that the electrochemical aluminum hot 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 the release material, and the non-release area is configured as a cutting area of a cutting knife. According to the invention, the release layer is coated in a positioning manner through a customized local release process, so that the release layer of the electric aluminum hot stamping foil simultaneously has a release area coated with release material and a non-release area not coated with release material. Avoid fragile from type layer and cutter body direct contact and produce the piece at the in-process of cutting, and then avoid piece and the powder that drops to adsorb and pile up the heat conductivity and the impression area of gilt version in the regional surface influence of printed matter surface or gilt version sculpture, finally ensure the definition of thermoprint pattern and the thermoprint quality of product.
Description
Technical Field
The invention relates to the technical field of printing packaging materials, in particular to a production process of an electrochemical aluminum hot stamping foil.
Background
The electric aluminium hot stamping foil is generally composed of a base film layer, a release layer, a coloring layer, a vacuum aluminium plating layer and a back glue layer.
Because the release layer of the electric aluminum hot stamping foil is brittle, the fragile electric aluminum release layer can be damaged in the cutting process of the electric aluminum hot stamping foil, fragments are often formed around the fracture of the electric aluminum release layer, and the falling coating fragments are easily splashed to the periphery of hot stamping patterns or characters to present bright color points or color blocks which are commonly called as 'gold flying'. When the gold flying is serious, the dropped powder can be adsorbed and accumulated on the surface of a printed matter or the surface of an engraving area of a gold stamping plate, and the heat conductivity and the imprinting area of the gold stamping plate are seriously influenced, so that the definition of a hot stamping pattern is reduced, and the hot stamping quality of a product is directly influenced.
Disclosure of Invention
The invention aims to provide a production process of an electrochemical aluminum hot stamping foil, which aims to solve the problems of metal flying and metal falling at two cutting ends in the cutting process of the conventional electrochemical aluminum hot stamping foil.
In order to solve the problems, the invention adopts the technical scheme that:
the production process of the electrochemical aluminum hot stamping foil is characterized in that the electrochemical aluminum hot 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 materials and a non-release area which is not coated with the release materials, and the non-release area is configured to be a cutting area of a cutting knife.
The local release process adopts a customized plate roller which is not loaded locally, and the customized plate roller is provided with a smooth plate with a preset width.
The specific process steps comprise:
s1, determining the width of the cut web
Determining the cutting trend of the alumite hot stamping foil according to the gold stamping pattern, and determining the cutting width of the small roll of alumite hot stamping foil according to the product specification;
s2, determining the optimal splitting scheme
According to the standard width of the electrochemical aluminum hot stamping foil and the cutting width of the small-roll electrochemical aluminum hot stamping foil, determining an optimal matching cutting scheme through calculation and analysis, wherein the cutting scheme comprises the cutting number of the small-roll electrochemical aluminum hot stamping foil and the width of a cutting area between adjacent cutting rolls;
s3, preparing an engraving roll for coating release material
Customizing an electroengraving roll having a coated plate with a loading and a bare plate without a loading according to the slitting scheme of S2, the width of the bare plate being based on the width of the slitting section of S2;
s4 coating release material
Coating release materials on the surface of a base film by adopting a customized electric carving roller to obtain a release area coated with the release materials and a local release layer of a non-release area not coated with the release materials, wherein the release area of loading can ensure that an aluminum-plated layer and a base film layer are mutually peeled, so that foil peeling is facilitated during hot stamping, the non-release area not loaded is a cutting area which cannot be peeled, and is used as a reference part for cutting a 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 directly contacted with the cutter body;
s5, coating a coloring layer
Coating a color coating on the surface of the local release coating;
s6, aluminum plating
A metal aluminum layer is evaporated on the surface of the coloring layer through vacuum aluminum plating;
s7, coating back glue
Coating gum on the surface of the aluminum plating layer to form an adhesive layer;
s8, slitting
Adjusting the position of a slitting knife according to a preset slitting scheme to enable the blade of the slitting knife to cut corresponding to the center of a slitting area of the electrochemical aluminum hot stamping foil;
s9, gold stamping
And (4) gold stamping the cut small rolls of the alumite hot stamping foil on a machine.
The alumite hot stamping foil obtained by the production process provided by the invention sequentially comprises a base film layer, a local release layer, a coloring layer, an aluminum plating layer and an adhesive layer from bottom to top;
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 foil stripping in hot stamping; the non-release area is used as a reference position for cutting the roll, and the non-release area cannot be peeled off due to the fact that a release agent is not coated on the non-release area, 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 production process of the electrochemical aluminum hot stamping foil comprises the steps of carrying out full and deep analysis on the technical level of the phenomenon of 'gold flying' to determine the process route, planning a scientific and reasonable cutting scheme in advance at the front end of the process to determine a cutting area in a rear-end cutting process, and adopting a customized release material coating roller to carry out no-feeding treatment on the cutting area, so that a release layer of the electrochemical aluminum hot stamping foil simultaneously has a release area coated with release materials and a non-release area not coated with the release materials, and the release area coated with the release materials enables an aluminum-plated layer to be isolated from a base film layer, thereby facilitating foil stripping during hot stamping; and the non-release area can not peel off the aluminum coating layer and the base film layer due to the fact that release materials are not coated on the non-release area, so that a large roll with standard width can be cut into small rolls with preset width as a cutting area, the situation that the fragile release layer is in direct contact with a cutter body to generate fragments in the cutting process is avoided, the situation that the heat conductivity and the stamping area of a gold stamping plate are influenced by the fact that the dropped fragments and powder are adsorbed and accumulated on the surface of a printed matter or the surface of the carving area of the gold stamping plate is avoided, and the definition of hot stamping patterns and the hot stamping quality of products are finally guaranteed.
Drawings
Fig. 1 is a schematic diagram of a specific slitting scheme in the production process of the alumite hot stamping foil according to the first embodiment (in the drawing, a white part is a release area coated with release material, and a shadow part is a non-release area not coated with release material);
fig. 2 is a schematic diagram of a specific slitting scheme in the production process of the alumite hot stamping foil according to the second embodiment (in the drawing, a white part is a release area coated with release material, and a shadow part is a non-release area not coated with release material);
FIG. 3 is a schematic view of an interlayer structure of the electrochemical aluminum hot stamping foil of the present invention;
in the figure: 1. the base film layer 2, local from the type layer, 21, from type district, 22, not from the type district, 3, dyed layer, 4, aluminize layer, 5, gluing layer.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Example one
The production process of the electrochemical aluminum hot stamping foil comprises the following steps:
s1, determining the slitting width: selecting a product 1 with large electrochemical aluminum consumption in the actual production of the current company, wherein the width of the used small-roll electrochemical aluminum A is 0.105m, and moving the electrochemical aluminum longitudinally according to the size of the pattern needing gold stamping.
S2, determining optimal matching of slitting: referring to fig. 1, the width of the standard roll of the large roll of the alumite is 0.63m, the width of the alumite a is 0.105m, and the optimal matching is determined by calculation and analysis to be that the standard alumite is cut into 5 rolls of alumite of a type a, and the width of a cutting area between adjacent cutting rolls is 0.003 m.
S3 customized electrographic roller
According to the optimal splitting collocation scheme, an electric engraving plate roller with local non-feeding is customized, the electric engraving plate roller is provided with a coating plate with the feeding and a smooth plate without the feeding, the longitudinal width of the smooth plate is 0.003m, and the coating and the non-feeding are ensured.
S4 coating release material
The release material was applied to the base film layer using a custom, partially unloaded, electrographic roller. As shown in fig. 1, the blank portion was coated with release liner, and the shaded portion was not coated with release liner. The coating parameters were set to 1.0g/m coating weight, respectively2The machine speed is 95-105m/min, the fan frequency is 55HZ, and the oven temperature is as follows in sequence: 80-90 ℃, 110-120 ℃, 145-150 ℃ and 145-150 ℃.
S5, coating a coloring layer
And (3) a normal surface coating process, namely uniformly coating the yellow layer coating liquid on the base film layer with the release coating, wherein the machine speed is 95-105m/min, the coating amount is 1.2g/m2, and the oven temperature is 85-90 ℃, 120-130 ℃, 145-150 ℃ and 125-130 ℃.
S6, aluminum plating
Normal aluminum plating process, the aluminum plating thickness is 0.05um, the temperature is controlled within 80-130 ℃, and the yellow layer becomes golden after aluminum plating.
S7, coating back glue
Normal back coating process, coating back glue layer coating according to the hot stamping adaptability requirement of the alumite, wherein the coating weight is 1.5g/m2, the machine speed is 95-105m/min, the oven temperature is 85-90 ℃, 105-115 ℃, 125-135 ℃ and 115-125 DEG C
S8, slitting
The slitting width is 0.105m, 5 rolls of small rolls are slit totally, and the cutting edges of the slitting knives are arranged in the middle of a slitting area with the width of 0.003 m.
S9, gold stamping
And (3) performing on-machine gold stamping on the cut small rolls of alumite corresponding to the pattern specifications to finish the hot stamping work of the product 1, and solving the problem of gold flying on two sides of the gold stamping.
Example two
The embodiment relates to a production process of an electrochemical aluminum hot stamping foil, which comprises the following steps:
s1, determining the slitting width: selecting products 2, 3 and 4 with large consumption of the hot stamping foil of the electrochemical aluminum in the actual production of a certain company, and determining the width and the trend of the hot stamping foil of the electrochemical aluminum according to the specification of the products. For example, the width of the small roll of the electric aluminum hot stamping foil B used for the product 2 is 0.15m, the width of the small roll of the electric aluminum hot stamping foil C used for the product 3 is 0.25m, the width of the small roll of the electric aluminum hot stamping foil D used for the product 4 is 0.20m, and the slitting direction of the electric aluminum hot stamping foil is determined to be longitudinal according to the size of the pattern needing hot stamping.
S2, determining the optimal slitting collocation: and determining the optimal matching of the small rolls of the hot stamping foil by calculation and analysis according to the standard roll width of the hot stamping foil and the cutting widths of the three small rolls of hot stamping foils. As shown in fig. 2, the standard roll width of the large roll of the hot stamping foil is 0.63m, the width of the hot stamping foil B is 0.15m, the width of the hot stamping foil C is 0.25m, and the width of the hot stamping foil D is 0.20 m. The calculated optimal matching scheme is to cut a large roll of the standard scroll of the alumite hot stamping foil into a roll of B-type alumite hot stamping foil, a roll of C-type alumite hot stamping foil and a roll of D-type alumite hot stamping foil, and simultaneously determine a cutting area of 0.003m to be reserved between two adjacent small rolls of the alumite hot stamping foil.
S3 customized electrographic roller
The method comprises the steps of customizing an electroengraving roller according to a slitting optimal collocation scheme, wherein the customized electroengraving roller is provided with a coating plate and a smooth plate, and the longitudinal width of the smooth plate is 0.003 m.
S4 coating release material
Coating a release material on the base film layer by using a customized partial non-feeding electrographic plate roller; as shown in the attached figure 2, the blank part is coated with the release material, the shadow part is not coated with the release material, and the coating parameters are respectively set as the coating weight of 1.1g/m2, the machine speed of 95-105m/min, the fan frequency of 55HZ and the oven temperature: 85-90 ℃, 115-120 ℃, 135-140 ℃ and 145-150 ℃.
S5, coating a coloring layer
And a normal surface coating process, namely uniformly coating the yellow layer coating liquid on the base film layer with the release coating, wherein the machine speed is 95-105m/min, the coating amount is 1.0g/m2, and the oven temperature is 90-95 ℃, 125-135 ℃, 125-130 ℃ and 125-130 ℃.
S6, aluminum plating
Normal aluminum plating process, the aluminum plating thickness is 0.05um, the temperature is controlled within 100 ℃ and 130 ℃, and the yellow layer becomes golden after aluminum plating.
S7, coating back glue
Normal back coating process, coating back glue layer coating according to the hot stamping adaptability requirement of the alumite, wherein the coating weight is 1.4g/m2, the machine speed is 100-110m/min, the temperature of an oven is 80-90 ℃, 110-115 ℃, 120-140 ℃, 105-110 DEG C
S8, slitting
The slitting widths are respectively 0.15m, 0.25m and 0.20m, and the cutting edges of the slitting knives are arranged in the middle of the slitting area with the width of 0.003 m.
S9, gold stamping
And (3) performing machine gold stamping on the cut small rolls of alumite corresponding to the pattern specifications to finish the hot stamping work of the products 2, 3 and 4, and solving the problem of gold flying on two sides of the gold stamping.
The alumite hot stamping foil obtained by the production process of the embodiment sequentially 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; 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, and the release area 21 is used for isolating the coloring layer from the base film layer so as to facilitate foil removal during hot stamping; the non-release area 22 is used as a reference position for cutting and rolling, and the non-release area cannot be peeled off due to the fact that a release agent is not coated on the non-release area, 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 electric aluminum hot stamping foil, the electric aluminum hot stamping foil has the following beneficial effects: the production process is simple and easy to control, the cost is low, the local release layer can be realized only by adding a customized local non-loading printing roller, the traditional full-release layer is replaced by the local release layer, the local non-loading non-release area is used as a slitting part, and the release layer in the release area is prevented from being directly contacted with a slitting knife, so that the phenomenon of 'gold flying' generated when a knife body is contacted with the release layer is avoided, and the quality of printed products and the production efficiency are improved.
The scope of the present invention is not limited to the above embodiments, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention. The technical scheme is not described in detail and is a known technology. All the alumite which is the same as or equivalent to the technical scheme of the invention and solves the problem of gold stamping and gold flying belong to the protection scope of the invention.
Claims (4)
1. The production process of the electric aluminum hot stamping foil is characterized in that the electric aluminum hot 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 materials and a non-release area not coated with the release materials, and the non-release area is configured to be a cutting area of a separating cutter.
2. The process for producing an electrochemical aluminum stamping foil as recited in claim 1,
the local release process adopts a customized plate roller which is not loaded locally, and the customized plate roller is provided with a smooth plate with a preset width.
3. The process for the production of an electrochemical aluminium stamping foil according to claim 1 or 2,
the process comprises the following steps:
s1, determining the width of the cut web
Determining the cutting trend of the alumite hot stamping foil according to the gold stamping pattern, and determining the cutting width of the small roll of alumite hot stamping foil according to the product specification;
s2, determining the optimal splitting scheme
According to the standard width of the electrochemical aluminum hot stamping foil and the cutting width of the small-roll electrochemical aluminum hot stamping foil, determining an optimal matching cutting scheme through calculation and analysis, wherein the cutting scheme comprises the cutting number of the small-roll electrochemical aluminum hot stamping foil and the width of a cutting area between adjacent cutting rolls;
s3, preparing an engraving roll for coating release material
Customizing an electroengraving roll having a coated plate with a loading and a bare plate without a loading according to the slitting scheme of S2, the width of the bare plate being based on the width of the slitting section of S2;
s4, coating release material
Coating release materials on the surface of a base film by adopting a customized electric carving roller to obtain a release area coated with the release materials and a local release layer of a non-release area not coated with the release materials, wherein the release area of the loading ensures that an aluminum-plated layer and a base film layer are mutually peeled, so that foil peeling is facilitated during hot stamping, the non-release area not loaded is a cutting area which cannot be peeled, and is used as a reference part for cutting a 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 directly contacted with the cutter body;
s5, coating a coloring layer
Coating a color coating on the surface of the local release coating;
s6, aluminum plating
Evaporating a metal aluminum layer on the surface of the coloring layer through vacuum aluminum plating;
s7, coating back glue
Coating gum on the surface of the aluminum plating layer to form an adhesive layer;
s8, cutting
Adjusting the position of a slitting knife according to a preset slitting scheme to enable the blade of the slitting knife to cut corresponding to a non-release area of the hot stamping foil;
s9, gold stamping
And (4) gold stamping the cut small rolls of the alumite hot stamping foil on a machine.
4. An electro-aluminium stamping foil obtainable by the process according to any of claims 1 to 3,
the interlayer structure sequentially comprises a base film layer, a local release layer, a coloring layer, an aluminum coating layer and an adhesive layer from bottom to top;
the local release layer comprises a release area coated with a release agent and a non-release area not coated with the release agent.
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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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| 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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| CN114559758B CN114559758B (en) | 2023-06-09 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02209289A (en) * | 1989-02-10 | 1990-08-20 | Toppan Printing Co Ltd | Transfer foil |
| JPH0971026A (en) * | 1995-09-04 | 1997-03-18 | Dainippon Printing Co Ltd | Heat 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 |
| CN105313516A (en) * | 2015-09-23 | 2016-02-10 | 武汉华工图像技术开发有限公司 | Anti-fake hot stamping film with 3D effect and preparation method thereof |
| JP2017087669A (en) * | 2015-11-16 | 2017-05-25 | 凸版印刷株式会社 | Protective layer transfer sheet |
| CN108215553A (en) * | 2017-12-31 | 2018-06-29 | 施莹莺 | A kind of method for making glass surface thermoprint ornamenting film |
| CN108327416A (en) * | 2018-04-16 | 2018-07-27 | 江苏学泰印务有限公司 | A kind of aqueous, environmental protective heat transfer film and preparation method thereof |
| CN113246646A (en) * | 2020-04-29 | 2021-08-13 | 深圳劲嘉集团股份有限公司 | Local aluminum-plated multi-medium anti-counterfeiting transfer film and production equipment and preparation method thereof |
-
2022
- 2022-03-24 CN CN202210293035.3A patent/CN114559758B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02209289A (en) * | 1989-02-10 | 1990-08-20 | Toppan Printing Co Ltd | Transfer foil |
| JPH0971026A (en) * | 1995-09-04 | 1997-03-18 | Dainippon Printing Co Ltd | Heat 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 |
| CN105313516A (en) * | 2015-09-23 | 2016-02-10 | 武汉华工图像技术开发有限公司 | Anti-fake hot stamping film with 3D effect and preparation method thereof |
| JP2017087669A (en) * | 2015-11-16 | 2017-05-25 | 凸版印刷株式会社 | Protective layer transfer sheet |
| CN108215553A (en) * | 2017-12-31 | 2018-06-29 | 施莹莺 | A kind of method for making glass surface thermoprint ornamenting film |
| CN108327416A (en) * | 2018-04-16 | 2018-07-27 | 江苏学泰印务有限公司 | A kind of aqueous, environmental protective heat transfer film and preparation method thereof |
| CN113246646A (en) * | 2020-04-29 | 2021-08-13 | 深圳劲嘉集团股份有限公司 | Local aluminum-plated multi-medium anti-counterfeiting transfer film and production equipment and preparation method thereof |
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