WO2007068172A1

WO2007068172A1 - Forming methods of film label or packing material

Info

Publication number: WO2007068172A1
Application number: PCT/CN2006/002494
Authority: WO
Inventors: Huarong Li
Original assignee: Huarong Li
Priority date: 2005-12-14
Filing date: 2006-09-22
Publication date: 2007-06-21

Abstract

A forming method of film label or packing material is disclosed. The forming method comprises the following steps: providing a first film; depositing a metal layer on the first film surface by the vacuum vapor deposition; printing a protective layer having resistance to chemical etching on the metal layer, and the shape of the protective layer corresponds to the shape of desired metal image or pattern; removing the portion of the metal layer which is not covered by the protective layer from the first film surface by chemical etching, and yielding the desired metal image or pattern on the first film surface; providing a second film for protecting the pattern layer formed on the first film; laminating the first film with the second film. The cost of the forming method is low and the efficiency is high. Moreover, through laminating another film or applying a transparent or translucent ink, the protection effect for the printed ink can be improved, while some reflection effect remained by the removed metal layer can be eliminated.

Description

Film label or packaging material manufacturing method

The present invention relates to a method of making a film label or packaging material.

Background technique

Film labels or packaging materials can be widely used in trademarks, seals, various types of wrapping paper, and the like. In the traditional film label or packaging material printing process, metallization treatment such as bronzing treatment or partial transfer treatment is required to obtain a certain visual effect, but both the hot stamping treatment and the partial transfer treatment require high processing cost and comparison. Long processing time.

Summary of the invention

It is an object of the present invention to provide a method of making a low cost and efficient film label or packaging material.

A first aspect of the present invention provides a method for fabricating a film label or packaging material, comprising the steps of: providing a film; vacuum evaporating a metal plating layer on the surface of the film; and printing a chemical resistant protective layer on the metal plating layer, the protection The shape of the layer corresponds to the desired metal pattern or pattern; the metal plating layer outside the coverage area of the protective layer is removed on the surface of the film by chemical etching, and the desired metal pattern or pattern is obtained on the surface of the film; a bottom paper is provided; A film that requires a metal pattern or pattern is pressed against the backing paper to obtain a film label or packaging material.

A second aspect of the present invention provides a method for fabricating a film label or packaging material, comprising the steps of: providing a first film; vacuum evaporating a metal plating layer on the surface of the first film; and printing a chemical resistant protective layer on the metal plating layer The shape of the protective layer corresponds to a desired metal pattern or pattern; removing a metal plating layer outside the cover layer of the protective layer on the surface of the first film by chemical etching to obtain a desired metal pattern or pattern on the surface of the first film; a second film for protecting a pattern layer prepared on the first film; and combining the first film with the second film.

A third aspect of the invention provides a method for fabricating another film label or packaging material, comprising the steps of: providing a film; vacuum evaporating a metal plating layer on the surface of the film; and printing a chemical resistant protective layer on the metal plating layer, The shape of the protective layer corresponds to the desired metal pattern or pattern; the metal plating layer outside the cover layer of the protective layer is removed on the surface of the film by chemical etching, and the desired metal pattern or pattern is obtained on the surface of the film; the surface of the film is coated with transparent or semi-coated Transparent ink for protection preparation a patterned layer on the film.

A fourth aspect of the present invention provides a method for fabricating a film label or packaging material, comprising the steps of: providing a film; vacuum evaporating a metal plating layer on the surface of the film; and printing a chemical resistant protective layer on the metal plating layer, The shape of the protective layer corresponds to the desired metal pattern or pattern; the metal plating layer outside the coverage of the protective layer is removed on the surface of the film by chemical etching, and the desired metal pattern or pattern is obtained on the surface of the film; Non-metallic materials.

The film may be made of chemically resistant insulating material such as ethylene terephthalate polyester (PET); the vapor deposited metal may be aluminum, copper or silver; the protective layer may be coated with an acid-resistant paint or ink such as poly An amide ink or the like; the chemical etching solution may be an acidic or alkaline etching solution such as sodium hydroxide or hydrochloric acid.

By compounding another film or applying a transparent or translucent ink, it is possible to enhance the protection of the printing ink while eliminating the residual laser effect of the metal plating that has been removed.

The evaporation of a transparent non-metallic material such as zinc sulfide can enhance the protection of the printing ink while retaining a portion of the laser effect that remains of the removed metal coating.

In the method for fabricating a film label or packaging material of the present invention, a metal plating layer is deposited on the film and the metal plating layer is selectively etched to replace the conventional metallization process such as partial hot stamping or partial transfer, thereby obtaining a An inexpensive and efficient method of making film labels or packaging materials. detailed description

Example 1

Production of film labels or packaging materials with single-sided metal patterns. In the vacuum apparatus, one side of a flexible insulating film made of a material such as a thermosetting resin is vapor-deposited with an aluminum layer having a plating thickness of preferably 300 Å to 500 Å. Thereafter, the aluminum-plated insulating film is taken out from the vacuum apparatus, and printed on the aluminized surface of the insulating film by a printing method known in the art to form a polyamide ink protective layer having a predetermined pattern or pattern thereon. The predetermined graphic or pattern corresponds to the desired graphic or pattern. Next, the insulating film is introduced into an etching bath containing sodium hydroxide to etch away the aluminum layer outside the coverage area of the polyimide coating to obtain the desired metal pattern or pattern on the aluminized surface of the insulating film instead of obtaining hot stamping or The visual effect of local transfer; Finally, the traditional process of cross-cutting, compounding, gluing and topping the insulating film can obtain a film label with a single-sided metal pattern. The visual effect of such a label or packaging material is substantially the same as that obtained by bronzing or local transfer processing. Production of film labels or packaging materials with double-sided metal patterns. In the vacuum apparatus, an aluminum layer is vapor-deposited on both sides of a flexible insulating film made of polyethylene terephthalate polyester (PET), and the thickness of the plating layer is preferably 300 angstroms to 500 angstroms. PET is used as the film material. Due to its transparent nature, after the coating on both sides of the film is corroded by acid or alkali, the reaction part is transparent (either transparent or transparent on both sides), so that a predetermined special visual effect can be achieved. Those skilled in the art will appreciate that the thickness of the plating and/or plating on both sides may be the same or different, as desired. During vapor deposition, a susceptor that rotatably supports the insulating film may be disposed in the vacuum evaporation apparatus. After one side of the insulating film is plated, the susceptor is rotated by 180 degrees to evaporate the other side of the insulating film; if the insulating film is In the case of a long strip, it is preferable to introduce the insulating film into another vapor deposition device after the one side of the insulating film is plated to evaporate the other side. Thereafter, the insulating film on both sides of the aluminum-plated layer is taken out from the vacuum device, and printed on the front and back sides of the insulating film simultaneously by using a reverse printing machine known in the art to form a predetermined pattern on both sides of the insulating film or A patterned polyamide ink protective layer corresponding to the desired metal pattern or pattern. It will be understood by those skilled in the art that the protective layer patterns or patterns on both sides may be the same or different as needed; Next, the insulating film is introduced into an etching bath containing sodium hydroxide to corrode and remove aluminum outside the coverage area of the polyimide coating. Layers on the two sides of the insulating film to obtain the desired metal pattern or pattern, instead of obtaining the visual effect of bronzing or local transfer; finally, the traditional process of cross-cutting, compounding, gluing and uppering the insulating film can be obtained. Film label or packaging material with a double-sided metal pattern. The visual effect of such labels or packaging materials is even better than that obtained by bronzing or local transfer processing.

Example 3

Production of film labels or packaging materials with single-sided metal patterns. In the vacuum apparatus, one side of a flexible insulating film made of a material such as a thermosetting resin is vapor-deposited with an aluminum layer having a plating thickness of preferably 300 Å to 500 Å. Thereafter, the aluminum-plated insulating film is taken out from the vacuum apparatus, and printed on the aluminized surface of the insulating film by a printing method known in the art to form a polyamide ink protective layer having a predetermined pattern or pattern thereon. The predetermined graphic or pattern corresponds to the desired graphic or pattern. Next, the insulating film is introduced into an etching bath containing sodium hydroxide to corrode the aluminum layer outside the coverage area of the polyacrylic acid sleeve protective layer to obtain a desired metal pattern or pattern on the aluminized surface of the insulating film instead of obtaining the bronzing. Or the visual effect of partial transfer. Thereafter, print a non-laser effect pattern (such as characters, etc.) as needed; then combine another layer of protective film on the film surface, such as OPP (polypropylene), PVC (Polyvinyl chloride), PET and other films, the composite process can be dry composite or wet composite (so-called dry composite means that the composite film has been coated with a composite adhesive, directly compounded; and wet composite refers to the need The composite film is coated and then compounded, or it can be laminated by means of a pre-adhesive method (film with glue). The composite protective film enhances the protection of the printing ink while eliminating the residual laser portion of the metal coating that has been removed. Alternatively, after selective etching (obtaining a pattern having a laser effect) and non-laser effect printing (for example, printing characters of general visual effects, etc.), it is also possible to apply a method of a composite film instead of coating a surface of the film. A layer of transparent or translucent ink such as varnish is used to protect the prepared pattern layer from scratching or wiping. Subsequently, the composite two-layer material is compounded with a release film of silicone oil or paper with silicone oil to obtain a self-adhesive material, and the above materials are subjected to film cutting to obtain a self-adhesive label. If there is no composite liner (ie, a release film with silicone oil or paper with silicone oil), a packaging material is obtained. The resulting film label or packaging material with a single-sided metal pattern has a visual effect that is substantially comparable to that obtained by bronzing or local transfer processing.

Example 4

Production of film labels or packaging materials with double-sided metal patterns. In the vacuum apparatus, an aluminum layer is vapor-deposited on both sides of a flexible insulating film made of polyethylene terephthalate polyester (PET), and the thickness of the plating layer is preferably 300 angstroms to 500 angstroms. PET is used as the film material. Due to its transparent nature, after the coating on both sides of the film is corroded by acid or alkali, the reaction part is transparent (either transparent or transparent on both sides), so that a predetermined special visual effect can be achieved. Those skilled in the art will appreciate that the thickness of the plating and/or plating on both sides may be the same or different, as desired. During vapor deposition, a susceptor that rotatably supports the insulating film may be disposed in the vacuum evaporation apparatus. After one side of the insulating film is plated, the susceptor is rotated by 180 degrees to evaporate the other side of the insulating film; if the insulating film is In the case of a long strip, it is preferable to introduce the insulating film into another vapor deposition device after the one side of the insulating film is plated to evaporate the other side. Thereafter, the insulating film on both sides of which has been plated with aluminum is taken out from the vacuum apparatus, and the printing is performed simultaneously on both the front and back sides of the insulating film by using a reverse printing machine known in the art to form predetermined patterns on both sides of the insulating film. Or a patterned polyamide ink protective layer corresponding to the desired metallic pattern or pattern. It will be understood by those skilled in the art that the protective layer patterns or patterns on both sides may be the same or different (to obtain a desired visual effect) as needed; Next, the insulating film is introduced into an etching bath containing sodium hydroxide to etch away the ammonium chloride. The ink protective layer covers the area The outer aluminum layer and the desired metal pattern or pattern are respectively obtained on both sides of the insulating film, instead of obtaining the visual effect of bronzing or partial transfer; then, (if necessary, a non-laser effect pattern such as a character may be printed first) on the film. Evaporating a transparent non-metallic material zinc sulfide (thickness 10A-100 A), this non-metallic material layer can retain the remaining part of the laser effect of the removed metal plating layer, of course, can also protect the prepared pattern layer from being Scratch or wipe the flowers. Subsequently, the composite two-layer material is compounded with a release film of silicone oil or paper with silicone oil to obtain a self-adhesive material, and the above materials are subjected to film cutting to obtain a self-adhesive label. If there is no composite liner (ie, a release film with silicone oil or paper with silicone oil), a packaging material is obtained. The visual effect of the finally obtained film label or packaging material with a double-sided metal pattern is even better than that obtained by bronzing or local transfer processing.

The invention has the following advantages -

1. Two-sided metal graphics or patterns can be produced on some transparent film materials to produce predetermined special visual effects;

2. Since the metal is plated on the film by vacuum evaporation, the thickness of the plating layer can be conveniently controlled as needed, and can be accurate to several hundred angstroms;

3. Since the metal layer is formed by vacuum evaporation, the corrosion rate is relatively fast when the corrosive liquid is used for etching, and the production rate is greatly improved;

4. The protective film (or transparent or translucent ink) can eliminate the residual laser effect of the metal plating which has been removed, and at the same time strengthen the protection of the printing ink, so that the prepared pattern layer is not scratched or wiped.

5. A transparent non-metallic material such as zinc sulfide retains a portion of the remaining laser effect of the removed metal coating while enhancing the protection of the printing ink, so that the prepared pattern layer is not scratched or rubbed.

6. Low production cost and high production efficiency.

It should be understood by those skilled in the art that the above-described embodiments are merely illustrative of the scope of the invention and are not to be construed as limiting.

Claims

Claim

A method for fabricating a film label or packaging material, comprising the steps of: providing a film;

Vacuum-depositing the metal plating on the surface of the film;

Printing a chemically resistant protective layer on the metal plating layer, the protective layer having a shape corresponding to the desired metal pattern or pattern;

Removing a metal plating layer outside the coverage of the protective layer on the surface of the film by chemical etching to obtain a desired metal pattern or pattern on the surface of the film;

Providing a bottom paper;

The film with the desired metal pattern or pattern is pressed against the backing paper to obtain a film label.

2. The method of claim 1 wherein: the film is a transparent polymeric film.

The method according to claim 2, wherein the metal is vapor-deposited on both sides of the film.

4. The method of claim 3, wherein: the plating and/or the plating layer formed on both sides of the film are different in thickness.

The method according to any one of claims 1 to 4, wherein the metal plating layer is an aluminum layer.

6. A method of making a film label or packaging material, comprising the steps of: providing a first film;

Vacuum-depositing the metal plating on the surface of the first film;

Removing a metal plating layer outside the cover layer of the protective layer on the surface of the first film by chemical etching to obtain a desired metal pattern or pattern on the surface of the first film;

Providing a second film for protecting a pattern layer prepared on the first film;

The first film is composited with the second film.

7. The method of claim 6 further comprising the step of: after the compounding step:

Providing a bottom paper;

The composite film with the desired metal pattern or pattern is pressed against the backing paper.

8. A method according to claim 6 or claim 7 wherein: both the first and second films are transparent polymeric films.

9. A method according to claim 6 or claim 7 wherein: prior to the step of providing the second film, the step of etching further comprises the step of applying a printed pattern on the first film.

10. A method of making a film label or packaging material, comprising the steps of: providing a film;

Vacuum-depositing the metal plating on the surface of the film;

A transparent or translucent ink is applied to the surface of the film to protect the patterned layer formed on the film.

11. The method of claim 10, further comprising providing a backing paper after the coating step;

The film with the desired metal pattern or pattern is pressed against the backing paper.

12. The method according to claim 10 or 11, wherein the step of applying a printed pattern on the film before the etching step and after the etching step is further included.

13. A method of making a film label or packaging material, comprising the steps of: providing a film;

Vacuum-depositing the metal plating on the surface of the film;

A transparent non-metallic material is evaporated on the surface of the film.

14. The method according to claim 13, wherein after the step of vaporizing the non-metallic material, the method further comprises the steps of:

Providing a bottom paper; The film with the desired metal pattern or pattern is pressed against the backing paper.

The method according to claim 13 or 14, wherein the step of applying a printed pattern on the film before the step of vaporizing the non-metallic material and after the etching step is further included.