CN108560027B - Method for manufacturing metal label - Google Patents
Method for manufacturing metal label Download PDFInfo
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- CN108560027B CN108560027B CN201810327612.XA CN201810327612A CN108560027B CN 108560027 B CN108560027 B CN 108560027B CN 201810327612 A CN201810327612 A CN 201810327612A CN 108560027 B CN108560027 B CN 108560027B
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- metal
- sheet body
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/10—Moulds; Masks; Masterforms
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Making Paper Articles (AREA)
Abstract
The invention discloses a method for manufacturing a metal label, which comprises the following steps: providing a non-metallic sheet with a pattern; plating a metal film on one side of the non-metal sheet body with the pattern, wherein the formed metal film is provided with the pattern; printing photosensitive glue for photo-induced imaging on the metal film, after exposure and development, placing the metal film into an electroforming tank for electroforming, forming a metal layer with patterns on the surface of the metal film after electroforming, and completely stripping the metal layer by using a transfer film to obtain the metal label with the patterns. The manufacturing method of the metal label provided by the invention reduces the production cost of the metal label.
Description
Technical Field
The invention relates to the technical field of metal label manufacturing, in particular to a metal label manufacturing method.
Background
The metal label of prior art, generally speaking the metal sheet body of radium-shine preparation area pattern of laser, later carry out the electroforming on the lamellar body, generate an electroforming layer, peel off the electroforming layer at last and obtain the metal label of taking the pattern, because the electroforming layer is the metal, the metal sheet body of taking the pattern has great injury in the separation process, the pattern pixel of metal sheet body can lose too much after the separation many times, influence the quality of final metal label, consequently must regularly change the metal sheet body, in order to guarantee final finished product quality, but the cost of processing the pattern on the metal sheet body is too high, the change frequency of crossing the piece has improved manufacturing cost to a great extent, be unfavorable for popularization and application.
Disclosure of Invention
The invention aims to provide a metal label manufacturing method, which reduces the production cost of the metal label.
The technical scheme adopted by the manufacturing method of the metal label disclosed by the invention is as follows: a metal label manufacturing method comprises the following steps: providing a non-metal sheet body with patterns, plating a metal film on one side of the non-metal sheet body with the patterns, and forming the metal film with the patterns; printing photosensitive glue for photo-induced imaging on the metal film, after exposure and development, placing the metal film into an electroforming tank for electroforming, forming a metal layer with patterns on the surface of the metal film after electroforming, and completely stripping the metal layer by using a transfer film to obtain the metal label with the patterns.
Preferably, the method further comprises the step of manufacturing the non-metal sheet body with the pattern: providing a transfer printing mold with patterns; printing the light-cured glue on a transfer printing mould in a transfer printing mode; providing a non-metal sheet body, pressing the non-metal sheet body on a light curing glue part of a transfer printing mold, forming a cured pattern layer after the light curing glue is cured, and demolding after curing to separate the non-metal sheet body and the pattern layer from the transfer printing mold to obtain the non-metal sheet body with the pattern.
Preferably, the method further comprises the step of manufacturing the transfer mold: the metal plate is processed with patterns by laser, and is processed with an electroforming mold corresponding to the patterns by electroforming to be used as a transfer mold.
Preferably, the method further comprises the step of manufacturing the non-metal sheet body with the pattern: providing a mould pressing mould with a pattern; preheating a die; providing a non-metal sheet body, putting the non-metal sheet body into a mould pressing mould, closing the mould and pressurizing, and carrying out demoulding treatment after the non-metal sheet body is cooled and solidified to obtain the non-metal sheet body with patterns.
Preferably, the metal film is passivated before electroforming.
Preferably, the surface of the non-metal sheet is plated with a metal film by vacuum plating or silver mirror reaction.
Preferably, the metal film printed with the photoresist and the non-metal sheet are fixed by a fixture and then electroformed, the fixture is of a frame structure, and the metal film and the non-metal sheet are arranged inside the fixture.
Preferably, a conductive copper foil is arranged between the clamp and the metal film.
Preferably, the material of the transfer mold is stainless steel or nickel.
Preferably, the non-metal sheet is made of PC or PET.
The metal label manufacturing method disclosed by the invention has the beneficial effects that: plating a metal film on one surface of the non-metal sheet body with the pattern to form a metal film with the pattern, printing a photosensitive adhesive on the metal film, performing electroforming after exposure and development to form a metal layer with the pattern on the metal film, and stripping the metal layer to obtain the metal label. The non-metal sheet body that the preparation process adopted and to have the metallic film has replaced original metal sheet body, because the non-metal sheet body preparation low cost that has the metallic film has reduced manufacturing cost to a very big extent, because the non-metal sheet body that has the metallic film is disposable, the process does not have the loss of pattern pixel moreover, therefore the pattern quality is higher.
Detailed Description
The invention will be further illustrated and described with reference to specific examples: a metal label manufacturing process comprises the following steps: s100, preprocessing, manufacturing a transfer printing mold according to needs, generating patterns, and cutting the nonmetal sheet body to be in a preset shape. The manufacturing of the transfer printing mold is specifically as follows: and processing patterns on the metal plate in a laser mode, and processing an electroforming mold corresponding to the patterns through electroforming to serve as a transfer mold. The material of the transfer printing mould is stainless steel or nickel.
The non-metal sheet material is required to be kept unchanged for more than two hours under the environment with the temperature of 30 degrees, and preferably, the non-metal sheet is generally made of PC (polycarbonate) or PET (polyethylene terephthalate). The thickness is generally selected to be 0.125mm to 0.188mm, and in a preferred embodiment, the thickness is selected to be 0.125mm to 0.188 mm. At least one surface of the non-metal sheet body is hardened to improve the rigidity of the material, prevent the surface of the product from being scratched, and meanwhile, the non-metal sheet body can be repeatedly used, and the common hardening treatment mode is hardening liquid for coating.
S200, in the embodiment, the nonmetal sheet body generates various required patterns through UV transfer printing, and the implementation process is as follows:
1) preliminarily treating the non-metal sheet body to remove oil stains and dust on the surface of the non-metal sheet body;
2) and introducing the photo-curing glue into a transfer printing mold, and leveling the photo-curing glue. Preferably, the light-curing glue is UV glue;
3) adhering the non-metal sheet body to the photocuring glue part on the transfer printing mold, pressing the non-metal sheet body tightly by using a glue stick so as to ensure that the non-metal sheet body is in full contact with the photocuring glue and improve the adhesive force of the non-metal sheet body, and then standing for 3-5 minutes under weak light so as to ensure that the non-metal sheet body and the photocuring glue are fully wetted and adhered and avoid over-fast curing;
4) and (4) sending the workpiece subjected to the previous procedure into a light curing machine for curing the light curing glue to form a cured pattern layer. The curing process is a process that ultraviolet lamps in a light curing machine emit ultraviolet rays, light curing glue is cured after being irradiated by the ultraviolet rays, and a pattern layer is formed, and the curing process must ensure that each ultraviolet lamp works normally.
5) And (4) carrying out demoulding treatment on the workpiece subjected to the previous procedure, so that the pattern layer and the nonmetal sheet body are separated from the mould.
The demoulding process is the separation of pattern layer and rendition mould in essence, because pattern layer texture is soft partially, the demoulding process is very little to the rendition mould injury, consequently has increased substantially the life of rendition mould, has reduced the cost of changing the rendition mould.
In other embodiments, the non-metallic sheet is embossed to form the desired pattern by the process of:
1) providing a mould pressing mould with a pattern; the mould pressing die can be processed by a relief process;
2) preheating a die;
3) providing a non-metal sheet body, putting the non-metal sheet body into a mould pressing mould, closing the mould and pressurizing, and carrying out demoulding treatment after the non-metal sheet body is cooled and solidified to obtain the non-metal sheet body with patterns.
The non-metal sheet after molding is stored in a dust-free, dry, ventilated and sun-proof place.
Because the separation of nonmetal lamellar body and compression mold is nonmetal and metal material's separation, the separation process is little to compression mold's injury, has improved the life of rendition template, has reduced manufacturing cost.
S300, conducting treatment, namely conducting treatment is carried out on the pattern culture layer so as to carry out a subsequent electroforming process. In this embodiment, PVD is adopted, and PVD is a physical vapor deposition technology, and a metal film can be plated on non-metal workpieces such as glass, ceramics, plastics, crystal, wood, and paper, and the implementation process is as follows:
1) dedusting and drying the workpiece subjected to UV transfer printing, and removing oil if necessary;
2) coating a primer on one side of the pattern layer, which is far away from the non-metal sheet body, so as to improve the finish and the brightness of the surface of a plated part and improve the binding force of a film layer;
3) after leveling, the primer needs to be dried and solidified, and common methods include an infrared heating method, an electric heating method, an ultraviolet curing method and the like;
4) and (3) coating on the primer, wherein the target is required to be cleaned and an oxide film on the surface of the target is removed in the coating process, the workpiece is sent into a vacuum chamber, the target is heated to be evaporated, and the evaporated target is attached to the surface of the workpiece to form a layer of metal film with patterns. Preferably, the target is made of nichrome to form a nichrome film. The thickness of the metal film is more than 50 um;
5) a topcoat is applied to protect the metal film.
In order to facilitate the subsequent stripping action after electroforming, the metal film generated after the conductive treatment needs to be passivated, and an oxide film is generated on the surface of the metal film, so that the subsequent stripping difficulty is reduced, and the stripping speed and quality are improved.
S400, electroforming, namely forming a metal layer with patterns on the workpiece through electroforming, and stripping the metal layer to obtain the metal label. The implementation process is as follows:
1) printing a photoinduced imaging electroplating-resistant photosensitive adhesive on the workpiece subjected to the previous process, and performing post exposure treatment to increase the electroplating resistance of the photosensitive adhesive after plate burning and development;
2) fixing the processed workpiece with the pattern by a clamp, and placing the workpiece into an electroforming groove for electroforming to generate a metal layer with the pattern, wherein the electroforming time is related to the current according to the area and the thickness of the object to be casted; preferably, the thickness of the metal layer is 0.02mm-0.1 mm;
3) after cleaning and drying the workpiece, completely stripping the electroplated metal layer with the pattern by using a transfer film;
4) printing the adhesive sticker on the transfer paper, drying, then pasting the metal layer with the pattern on the transfer film on the adhesive film, pressing tightly, and then transferring the adhesive sticker film to the back of the metal layer with the pattern.
The clamp is of a frame structure, the metal film and the non-metal sheet body are arranged inside the clamp, and the copper foil is arranged between the clamp and the workpiece, so that the contact surface between the clamp and the workpiece is improved, and the phenomenon of nonuniform electroforming is avoided. Because the stainless steel is easy to peel off after being plated, the clamp is made of stainless steel materials.
The invention provides a metal label manufacturing method, which comprises the steps of plating a metal film on one surface of a non-metal sheet body with a pattern to form a metal film with the pattern, printing a photosensitive adhesive on the metal film, performing electroforming after exposure and development to form a metal layer with the pattern on the metal film, and stripping the metal layer to obtain the metal label. The non-metal sheet body that the preparation process adopted and to have the metallic film has replaced original metal sheet body, because the non-metal sheet body preparation low cost that has the metallic film has reduced manufacturing cost to a very big extent, because the non-metal sheet body that has the metallic film is disposable, the process does not have the loss of pattern pixel moreover, therefore the pattern quality is higher.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A metal label manufacturing method is characterized by comprising the following steps:
providing a non-metallic sheet with a pattern;
plating a metal film on one side of the non-metal sheet body with the pattern, wherein the formed metal film is provided with the pattern;
passivating the metal film;
printing photosensitive glue for photo-induced imaging on the metal film, after exposure and development, placing the metal film into an electroforming tank for electroforming, forming a metal layer with patterns on the surface of the metal film after electroforming, and completely stripping the metal layer by using a transfer film to obtain the metal label with the patterns.
2. The method of claim 1, further comprising the step of forming the patterned non-metallic sheet by:
providing a transfer printing mold with patterns;
printing the light-cured glue on a transfer printing mould in a transfer printing mode;
providing a non-metal sheet body, pressing the non-metal sheet body on a light curing glue part of a transfer printing mold, forming a cured pattern layer after the light curing glue is cured, and demolding after curing to separate the non-metal sheet body and the pattern layer from the transfer printing mold to obtain the non-metal sheet body with the pattern.
3. The metal label producing method according to claim 2, further comprising the step of making the transfer mold: the metal plate is processed with patterns by laser, and is processed with an electroforming mold corresponding to the patterns by electroforming to be used as a transfer mold.
4. The method of claim 1, further comprising the step of forming the patterned non-metallic sheet by:
providing a mould pressing mould with a pattern;
preheating a die;
providing a non-metal sheet body, putting the non-metal sheet body into a mould pressing mould, closing the mould and pressurizing, and carrying out demoulding treatment after the non-metal sheet body is cooled and solidified to obtain the non-metal sheet body with patterns.
5. The method for manufacturing a metal label according to any one of claims 1 to 4, wherein the metal film is plated on the surface of the non-metal sheet by vacuum plating or silver mirror reaction.
6. The method for manufacturing a metal label according to any one of claims 1 to 4, wherein the metal film printed with the photoresist and the non-metal sheet are fixed by a jig and then electroformed, the jig has a frame structure, and the metal film and the non-metal sheet are disposed inside the jig.
7. The method of claim 6, wherein a conductive copper foil is disposed between the clamp and the metal film.
8. The method for manufacturing a metal label according to any one of claims 2 to 3, wherein the material of the transfer mold is stainless steel or nickel.
9. The method for manufacturing a metal label according to any one of claims 1 to 4, wherein the non-metal sheet is made of PC or PET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810327612.XA CN108560027B (en) | 2018-04-12 | 2018-04-12 | Method for manufacturing metal label |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810327612.XA CN108560027B (en) | 2018-04-12 | 2018-04-12 | Method for manufacturing metal label |
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| Publication Number | Publication Date |
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| CN108560027A CN108560027A (en) | 2018-09-21 |
| CN108560027B true CN108560027B (en) | 2021-01-05 |
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| CN201810327612.XA Active CN108560027B (en) | 2018-04-12 | 2018-04-12 | Method for manufacturing metal label |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111020658B (en) * | 2019-12-31 | 2021-06-18 | 福冈科技(苏州)有限公司 | Production process and production equipment for PET (polyethylene terephthalate) electroplating decorative film |
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| CN102285298A (en) * | 2010-06-21 | 2011-12-21 | 圣维可福斯(广州)电子科技有限公司 | Object surface metallized decoration method |
| CN102300427A (en) * | 2010-06-28 | 2011-12-28 | 比亚迪股份有限公司 | Electronic product housing and manufacturing method thereof |
| CN105734619A (en) * | 2016-03-03 | 2016-07-06 | 北京同方生物芯片技术有限公司 | Electric casting mold and preparation method thereof |
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