CN115946466B - Multicolor multi-pattern accurate-registration holographic positioning electrochemical aluminum gold stamping film production process - Google Patents
Multicolor multi-pattern accurate-registration holographic positioning electrochemical aluminum gold stamping film production process Download PDFInfo
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Abstract
The invention discloses a multicolor multi-pattern accurate-positioning holographic positioning electrochemical aluminum gold stamping film production process, which changes the traditional three-time stamping (two stamping is overlapped stamping) into one-time stamping, reduces the use of gold stamping procedures and electrochemical aluminum gold stamping films, saves cost, improves production efficiency, adopts an imported importer to splice with high precision, adopts a gravure film printer to realize accurate positioning, and adopts a positioning and positioning die stamping mode in the die stamping procedure, thereby being capable of customizing the high-precision multicolor multi-pattern electrochemical aluminum gold stamping film according to the needs of customers and avoiding the defects of unstable stamping, deficient holographic pattern, incomplete stamping fine strips and the like of the second overlapped stamping process.
Description
Technical Field
The invention relates to the field of anti-counterfeiting technology, in particular to a production process of a multicolor multi-pattern accurate-registration holographic positioning electrochemical aluminum gold stamping film.
Background
The electrochemical aluminum hot stamping is characterized in that the image-text information on an electrochemical aluminum hot stamping film is printed on the surface layer of a hot stamping material by a specific hot stamping device through accurate stamping (transferring), and the electrochemical aluminum hot stamping is divided into: cold stamping and hot stamping, the hot stamping is divided into according to the difference of the image-text information to be stamped: random thermoprinting and holographic positioning thermoprinting.
Thermoprinting can be divided into: post-press stamping, stack stamping, and the like. The stacking and stamping is to stamp a large-area holographic positioning pattern on paper, and then stamp fine strips of graphics and texts on the large-area holographic positioning pattern.
Therefore, 2 different types of electrochemical aluminum are needed for the gilding paper adopting the folding and ironing process, and the gilding paper can be finished only by 2 times of thermoprinting, namely, the 1 st thermoprinting of a large-area hologram and the 2 nd thermoprinting of a local fine strip hologram. In the prior art, a plurality of middle-grade and high-grade cigarette packet boxes adopt a plurality of hot stamping modes, for example, a certain high-grade cigarette packet box adopts a 3-time hot stamping mode, namely, a grid red (laser) is hot stamped for the 1 st time, a common logo is hot stamped on the grid red for the 2 nd time, and a common gold mark is hot stamped on printing red ink for the 3 rd time, so that 3 electric aluminum hot stamping films are needed; a certain high-grade tobacco packet box adopts a 2-time hot stamping process, the 1 st hot stamping holographic positioning pattern and the 2 nd hot stamping plain surface gold logo and mark, so that 2 electric aluminum gold stamping films are required at least.
Disclosure of Invention
Therefore, in order to solve the defects, the invention provides a multicolor multi-pattern accurate-positioning holographic positioning electro-aluminum gold stamping film production process.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a multicolor multi-pattern accurate-positioning holographic positioning electrochemical aluminum gold stamping film production process is characterized in that: the production steps are as follows:
s1, manufacturing a holographic positioning nickel plate;
s2, coating a release layer on the BOPET film in a full-scale manner;
s3, locally coating an anilox roller on the release layer by adopting the 1 st color layer, and stretching and positioning the fixed length to coat the 1 st color layer;
s4, locally coating an anilox roller on the release layer by adopting the 2 nd color layer, and stretching and positioning the fixed length to coat the 2 nd color layer;
s5, locally coating an anilox roller on the release layer by adopting the 3 rd color layer, and stretching and coating to position the 3 rd color layer at a fixed length;
s6, rolling and pasting the holographic positioning nickel plate prepared in the step S1 on a holographic positioning sleeve position molding press;
s7, positioning and sleeve-position mould pressing the coating film prepared in the step S5 on a holographic positioning and sleeve-position mould pressing machine;
s8, aluminizing the holographic positioning sleeve position laser film prepared in the step S7 on a vacuum aluminizing machine;
s9, coating the holographic positioning sleeve position laser aluminized film prepared in the step S8 on a positioning stretching coater in a full-plate manner.
Preferably, the holographic positioning nickel plate in S1 is manufactured as follows:
s01, according to a 1 st gold stamping plate of an original overlapping technology, a corresponding 1 st film is manufactured, a 2 nd film (overlapping film) is manufactured by a 2 nd gold stamping plate, a 3 rd film is manufactured by a 3 rd gold stamping plate outside an overlapping area boundary, finally, a 4 th film is manufactured according to the 1 st film and the 3 rd film, the 4 th film comprises alignment patterns of the 1 st film and the 3 rd film, and the 4 th film is accurately aligned with the 1 st film and the 3 rd film;
s02, splicing the holographic pattern for the 2 nd hot stamping in the overlapping technology on the holographic pattern for the 1 st hot stamping film by using the 2 nd film in a UV (ultraviolet) splicing mode to obtain a 1 st positioning small plate film, and splicing the twice hot stamping holographic pattern carried on the small plate film on the 4 th film by using the 1 st positioning small plate film in the UV splicing mode; the 3 rd film is used for splicing the pattern for 3 rd hot stamping on the 3 rd film in a UV splicing mode, a 2 nd positioning small plate film is obtained, and the 2 nd small plate film is spliced on the 4 th film in a UV splicing mode; splicing positioning cursors for gold stamping on two sides of a positioning pattern on a 4 th film, splicing into a holographic positioning large plate by a UV (ultraviolet) splicing machine, metallizing the obtained holographic positioning large plate, manufacturing a holographic positioning nickel plate by an electroforming machine, and finally manufacturing a corresponding 5 th film according to the holographic positioning nickel plate;
s03, engraving a net hole on the 5 th film corresponding to the pattern part of the 1 st film by adopting a laser engraving mode, and engraving 1 positioning cursor (the cursors are engraved with net holes) on the left side and the right side respectively, wherein the positioning cursor is positioned in the effective coating range of the 1 st color layer, and other parts are optical plates to prepare a 1 st color layer local coating anilox roller; the function of the positioning cursor is used for positioning front and back patterns and left and right patterns in the subsequent color layer coating (intaglio printing) and for detecting the cursor in the positioning sleeve position mould pressing process; carving a net hole on the 5 th film and the 2 nd film corresponding to the pattern part in a laser carving mode, wherein other parts are the non-net holes of the optical plate, so as to prepare a 2 nd color layer local coating anilox roller; and engraving a net hole on the 5 th film and the 3 rd film corresponding to the pattern part in a laser engraving mode, wherein other parts are the non-net holes of the optical plate, so that the 3 rd color layer local coating anilox roller is manufactured.
Preferably, the thickness value of the BOPET film in the step S2 is 14-22 mu m.
Preferably, the release layer in S3 is a water-based release agent for hot stamping, and the thickness is 0.01-0.1 μm.
Preferably, the 1 st color layer in the step S3 is formed by coating an acrylic resin material, and the thickness of the coating is 0.7-1.4 μm.
Preferably, the color paste in the 1 st color layer in the step S4 consists of dye color paste.
Preferably, the 2 nd color layer in the step S4 is formed by coating an acrylic resin material, and the thickness of the coating is 0.7-1.4 μm.
Preferably, the 3 rd color layer in S5 is formed by coating an acrylate resin material, and the thickness of the coating is 0.7-1.4 μm.
Preferably, the partial coating of the color layers in S3, S4 and S5 adopts a film gravure printer, and the coating modes of the 1 st color layer, the 2 nd color layer and the 3 rd color layer are wire positioning coating fixed-length stretching.
Preferably, the holographic positioning sleeve position molding press in S7 comprises a left sleeve position system, a right sleeve position system, a front sleeve position system and a rear sleeve position system, wherein the left sleeve position system and the right sleeve position system are controlled by an unreeling deviation correcting system, the front sleeve position system and the rear sleeve position system are a set of manual alignment guide roller systems with front and rear independently adjustable film running positions, the automatic alignment system is arranged in front of the manual alignment guide roller system and comprises a preheating roller, an automatic swinging roller, a cursor scanning device and a controller.
Preferably, the thickness of the aluminum layer in the vacuum aluminizing process in S8 is 300-400 a.
The invention has the beneficial effects that: according to the invention, the traditional 3-time hot stamping (2 times of hot stamping is overlapped hot stamping) is changed into 1-time hot stamping, the hot stamping process and the use of an electrochemical aluminum hot stamping film are reduced, the cost is saved, the production efficiency is improved, the importation machine is adopted, the importation precision is high, the intaglio film printing machine is accurate in registration, the mould pressing process adopts a positioning registration mould pressing mode, the customer needs can be met, the high-precision multicolor multi-pattern electrochemical aluminum hot stamping film can be customized, and the hot stamping defects of infirm hot stamping, virtual holographic pattern generation, missing of hot stamping fine strips and the like which appear after the second hot stamping process are avoided.
Drawings
Fig. 1 is a schematic diagram of a hot stamping process (1 st hot stamping film) according to the present invention;
fig. 2 is a schematic diagram of the hot stamping process (2 nd time hot stamping film) of the present invention;
FIG. 3 is a schematic view of the ironing effect of the present invention;
FIG. 4 is a schematic illustration of a 3 rd time gold stamping film of the present invention;
fig. 5 is a schematic diagram of the 3 rd time stamping effect of the present invention;
FIG. 6 is a schematic representation of a color layer 1 partial coating anilox roll of the present invention;
FIG. 7 is a schematic representation of a color layer 2 partial coating anilox roll of the present invention;
FIG. 8 is a schematic representation of a 3 rd color layer partial coating anilox roll of the present invention;
FIG. 9 is a schematic illustration of a stamping plate of the present invention completed in one pass;
FIG. 10 is a schematic diagram showing the effect of one-time hot stamping according to the present invention.
Description of the embodiments
In order to further explain the technical scheme of the invention, the following is explained in detail through specific examples.
Referring to fig. 1-10, the invention provides a multicolor multi-pattern accurate-positioning holographic positioning electro-aluminum gold stamping film production process, which comprises the following steps:
1. the multi-pattern holographic positioning nickel plate is manufactured in a UV imposition mode, and corresponding films are manufactured: according to the 1 st film, manufacturing a 1 st color layer local coating anilox roller in a laser engraving mode; according to the 2 nd film, manufacturing a 2 nd color layer local coating anilox roller in a laser engraving mode; according to the 3 rd film, manufacturing a 3 rd color layer local coating anilox roller in a laser engraving mode; according to the 1 st gold stamping plate of the original overlapping technology, a corresponding 1 st film is manufactured, a 2 nd film (overlapping film) is manufactured by the 2 nd gold stamping plate, a 3 rd film is manufactured by the 3 rd gold stamping plate outside the overlapping area boundary, finally, a 4 th film is manufactured according to the 1 st film and the 3 rd film, the 4 th film comprises alignment patterns of the 1 st film and the 3 rd film, and the 4 th film is accurately aligned with the 1 st film and the 3 rd film; splicing the holographic pattern for the 2 nd hot stamping in the overlapping and stamping process on the holographic pattern for the 1 st hot stamping film by using the 2 nd film in a UV (ultraviolet) splicing mode to obtain a 1 st positioning small plate film, and splicing the twice hot stamping holographic pattern carried on the small plate film on the 4 th film by using the 1 st positioning small plate film in a UV splicing mode; the 3 rd film is used for splicing the pattern for 3 rd hot stamping on the 3 rd film in a UV splicing mode, a 2 nd positioning small plate film is obtained, and the 2 nd small plate film is spliced on the 4 th film in a UV splicing mode; splicing positioning cursors for gold stamping on two sides of a positioning pattern on a 4 th film, splicing into a holographic positioning large plate by a UV (ultraviolet) splicing machine, metallizing the obtained holographic positioning large plate, manufacturing a holographic positioning nickel plate by an electroforming machine, and finally manufacturing a corresponding 5 th film according to the holographic positioning nickel plate; and engraving the net holes on the 5 th film and the 1 st film corresponding to the pattern parts by adopting a laser engraving mode, and engraving 1 positioning cursor (the net holes are engraved by the cursors) on the left side and the right side respectively, wherein the positioning cursors are positioned in the effective coating range of the 1 st color layer, and the other parts are optical plates to prepare the 1 st color layer local coating anilox roller. The function of the positioning cursor is used for positioning the front and back patterns and the left and right patterns in the subsequent color layer coating (intaglio printing) and for detecting the cursor in the positioning sleeve position mould pressing process. Carving a net hole on the 5 th film and the 2 nd film corresponding to the pattern part in a laser carving mode, wherein other parts are the non-net holes of the optical plate, so as to prepare a 2 nd color layer local coating anilox roller; carving a net hole on the 5 th film and the 3 rd film corresponding to the pattern part in a laser carving mode, wherein other parts are the non-net holes of the optical plate, so as to prepare a 3 rd color layer local coating anilox roller; after each UV imposition machine is used for piecing 1 unit, the UV imposition machine automatically returns to the original point, and then the next unit is spliced from the original point, so that the holographic plate imposition error spliced in the way is less than or equal to 0.2mm;
2. coating a release layer on the BOPET film, wherein the base film is a PET gold stamping grade base film with the thickness of 18 mu m, the release layer is an aqueous release agent for hot stamping, and the thickness of the release layer is 0.01-0.1 mu m;
3. carrying out wire connection positioning coating fixed-length stretching on the intaglio film printing to sequentially finish a 1 st color layer partial coating, a 2 nd color layer partial coating and a 3 rd color layer partial coating; the 1 st color layer is formed by coating an acrylic resin material, the thickness of the coating is 0.7-1.4 mu m, the color layer coating machine is a multicolor gravure coating machine with a sleeve position function, the color layer coating machine is a multicolor gravure film printing machine, color paste in the 1 st color layer is composed of dye color paste, the 2 nd color layer is formed by coating an acrylic resin material, the thickness of the coating is 0.7-1.4 mu m, the 2 nd color layer has good compatibility with the 1 st color layer coating, the color paste is the same system, the 3 rd color layer is formed by coating an acrylic resin material, and the thickness of the coating is 0.7-1.4 mu m;
4. on a holographic positioning sleeve position holographic molding press, the positioning sleeve position is molded to obtain a holographic positioning sleeve position molded film; the holographic positioning sleeve position die press comprises a left sleeve position system, a right sleeve position system, a front sleeve position system and a rear sleeve position system, wherein the left sleeve position system and the right sleeve position system are controlled by an unreeling deviation correcting system, the front sleeve position system and the rear sleeve position system of the holographic positioning sleeve position die press are a set of manual alignment guide roller systems with front and rear independently adjustable film-moving positions, and the working principle is as follows: when the local coating of the 1 st color layer (corresponding to the 2 nd film) advances to the effective holographic pattern (corresponding to the 2 nd film) on the die-pressed nickel plate, the manual alignment guide roller is adjusted in the direction capable of tightening the film, the traction roller and the die-pressed version roller motor start to correct when the film is tightened, the deviation between the local coating of the 1 st color layer and the effective holographic pattern on the holographic nickel plate becomes smaller as a result of correction, and when the two are overlapped, the adjustment is stopped, so that the front and rear accurate die-pressing of the effective patterns of the local coating and the holographic nickel plate can be achieved; when the 1 st color layer local coating (corresponding to the 2 nd film) lags behind the effective holographic pattern (corresponding to the 2 nd film) on the die-pressed nickel plate, the manual alignment guide roller can adjust the loosening direction of the film, and the traction roller and the die-pressed version roller motor start to correct when the film is loosened, so that the deviation between the 1 st color layer local coating and the effective holographic pattern on the holographic nickel plate becomes smaller as a result of correction, and when the two are overlapped, the accurate positioning die pressing of the local coating and the effective holographic pattern on the holographic nickel plate can be achieved after stopping adjustment; in a more preferred scheme, the front and rear sleeve position systems of the holographic positioning sleeve position molding press are further provided with an automatic alignment system in front of the manual alignment guide roller system, and the automatic alignment system consists of a preheating roller, an automatic swinging roller, a cursor scanning device, a controller and the like, and the working principle of the automatic alignment system is as follows: inputting perimeter parameters of a holographic nickel plate into a controller, during coating a 2 nd color layer, purposely controlling the target perimeter (cursor interval) to be about 0.5mm shorter than the circumference of a die pressing holographic plate roller, setting the temperature of a preheating roller to be 70-90 ℃, enabling a cursor scanning device to coat cursors on a film during die pressing, calculating the interval between the two cursors in real time, when the interval between the 2 cursors is smaller than a set value, automatically swinging the roller to increase the tension, and simultaneously, elongating the film (after the coating film is preheated, the film can be stretched), namely, enlarging the interval between the 2 cursors, and when the interval between the 2 cursors and the circumference of the die pressing plate roller are equal to the set value, automatically swinging the roller to restore normal tension, thereby realizing accurate die pressing;
5. molding a holographic positioning sleeve mold pressing film, aluminizing on a vacuum aluminizing machine, wherein the thickness of an aluminum layer in vacuum aluminizing is 300-400A;
6. after vacuum aluminizing, stretching and coating a back adhesive layer on a coater in a fixed length mode, wherein the coater for the back adhesive layer is a positioning stretching coater;
7. and positioning and cutting according to the requirements of customers to obtain the multicolor multi-pattern accurate-positioning holographic positioning electrochemical aluminum gold stamping film.
The foregoing is merely a preferred example of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A multicolor multi-pattern accurate-positioning holographic positioning electrochemical aluminum gold stamping film production process is characterized in that: the production steps are as follows:
s1, manufacturing a holographic positioning nickel plate;
s2, coating a release layer on the BOPET film in a full-scale manner;
s3, locally coating an anilox roller on the release layer by adopting the 1 st color layer, and stretching and positioning the fixed length to coat the 1 st color layer;
s4, locally coating an anilox roller on the release layer by adopting the 2 nd color layer, and stretching and positioning the fixed length to coat the 2 nd color layer;
s5, locally coating an anilox roller on the release layer by adopting the 3 rd color layer, and stretching and positioning the fixed length to coat the 3 rd color layer;
s6, rolling and pasting the holographic positioning nickel plate prepared in the step S1 on a holographic positioning sleeve position molding press;
s7, positioning and sleeve-position mould pressing the coating film prepared in the step S5 on a holographic positioning and sleeve-position mould pressing machine;
s8, aluminizing the holographic positioning sleeve position laser film prepared in the step S7 on a vacuum aluminizing machine;
s9, coating a backing adhesive layer on the holographic positioning sleeve position laser aluminized film prepared in the S8 on a positioning stretching coater;
the holographic positioning nickel plate is manufactured by the following steps:
s01, according to a 1 st gold stamping plate of a hot stamping process, a corresponding 1 st film is manufactured, a 2 nd film is manufactured by a 2 nd gold stamping plate, a 3 rd film is manufactured by a 3 rd gold stamping plate outside a hot stamping area boundary, finally, a 4 th film is manufactured according to the 1 st film and the 3 rd film, the 4 th film comprises alignment patterns of the 1 st film and the 3 rd film, and the 4 th film is accurately aligned with the 1 st film and the 3 rd film;
s02, splicing the holographic pattern for the 2 nd hot stamping in the hot stamping process on the holographic pattern for the 1 st hot stamping by using the 2 nd film in a UV (ultraviolet) splicing mode to obtain a 1 st positioning small plate film, and splicing the twice hot stamping holographic pattern carried on the 1 st positioning small plate film on the 4 th film by using the UV splicing mode; the 3 rd film is used for splicing the pattern for 3 rd hot stamping on the 3 rd film in a UV splicing mode, so that a 2 nd positioning small plate film is obtained, and the 2 nd positioning small plate film is spliced on the 4 th film in a UV splicing mode; positioning cursors for gold stamping are spliced on two sides of an alignment pattern on a 4 th film, a holographic positioning large plate is spliced by a UV (ultraviolet) splicing machine, the obtained holographic positioning large plate is metallized, a holographic positioning nickel plate is manufactured by an electroforming machine in a copying mode, and finally a corresponding 5 th film is manufactured according to the holographic positioning nickel plate;
s03, engraving a net hole on the 5 th film by adopting a laser engraving mode at the position corresponding to the pattern of the 1 st film, engraving 1 positioning cursor on the left side and the right side respectively, wherein the positioning cursors are positioned in the effective coating range of the 1 st color layer, and the other positions are optical plates to prepare a local coating anilox roller of the 1 st color layer; the function of the positioning cursor is used for positioning the front and back patterns, the left and right patterns and for detecting the cursor when the positioning sleeve is molded during the coating of the subsequent color layer; carving a net hole on the 5 th film and the 2 nd film corresponding to the pattern part in a laser carving mode, wherein other parts are the non-net holes of the optical plate, so as to prepare a 2 nd color layer local coating anilox roller; and engraving a net hole on the 5 th film and the 3 rd film corresponding to the pattern part in a laser engraving mode, wherein other parts are the non-net holes of the optical plate, so that the 3 rd color layer local coating anilox roller is manufactured.
2. The production process of the multicolor multi-pattern accurate-positioning holographic positioning electrochemical aluminum gold stamping film, which is characterized by comprising the following steps of: and S2, the thickness value of the BOPET film is 14-22 mu m.
3. The production process of the multicolor multi-pattern accurate-positioning holographic positioning electrochemical aluminum gold stamping film, which is characterized by comprising the following steps of: the release layer in S2 is a water-based release agent for hot stamping, and the thickness is 0.01-0.1 mu m.
4. The production process of the multicolor multi-pattern accurate-positioning holographic positioning electrochemical aluminum gold stamping film, which is characterized by comprising the following steps of: the 1 st color layer in the step S3 is formed by coating an acrylic resin material, and the thickness of the coating is 0.7-1.4 mu m.
5. The production process of the multicolor multi-pattern accurate-positioning holographic positioning electrochemical aluminum gold stamping film, which is characterized by comprising the following steps of: and S3, the color paste in the 1 st color layer consists of dye color paste.
6. The production process of the multicolor multi-pattern accurate-positioning holographic positioning electrochemical aluminum gold stamping film, which is characterized in that: the partial coating of the 1 st color layer, the 2 nd color layer of the S4 and the 3 rd color layer of the S5 adopts a film gravure printer, and the coating modes of the 1 st color layer, the 2 nd color layer and the 3 rd color layer are wire positioning coating fixed-length stretching.
7. The production process of the multicolor multi-pattern accurate-positioning holographic positioning electrochemical aluminum gold stamping film, which is characterized by comprising the following steps of: the holographic positioning sleeve position molding press in the S7 comprises a left sleeve position system, a right sleeve position system, a front sleeve position system, a rear sleeve position system and a left sleeve position system, wherein the left sleeve position system and the right sleeve position system are controlled by an unreeling deviation correcting system, the front sleeve position system and the rear sleeve position system are a set of manual alignment guide roller systems capable of independently adjusting the film feeding position in front and behind, and an automatic alignment system is arranged in front of the manual alignment guide roller systems and comprises a preheating roller, an automatic swinging roller, a cursor scanning device and a controller.
8. The production process of the multicolor multi-pattern accurate-positioning holographic positioning electrochemical aluminum gold stamping film, which is characterized by comprising the following steps of: and S8, the thickness of the aluminum layer in the vacuum aluminum plating process is 300-400A.
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| JP2003326824A (en) * | 2002-05-15 | 2003-11-19 | Dainippon Printing Co Ltd | Card with photodiffraction layer and method for manufacture thereof |
| JP2008089863A (en) * | 2006-09-29 | 2008-04-17 | Dainippon Printing Co Ltd | Hologram sheet and hologram formed product |
| WO2013010379A1 (en) * | 2011-07-19 | 2013-01-24 | Chen Weiling | Preparation process for holographic patterned film, holographic patterned film and system |
| CN103009843A (en) * | 2012-12-21 | 2013-04-03 | 常德金鹏印务有限公司 | Preparation method of positioning laser paper and machining method of packaging product |
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