阅读说明：本技术 一种激光3d全息烫印膜及其制备工艺 (Laser 3D holographic thermoprinting film and preparation process thereof ) 是由 陈启斌 于 2019-11-20 设计创作，主要内容包括：本发明提供了一种激光3D全息烫印膜及其制备工艺,先通过激光成像技术将3D全息图像成型于光刻玻璃涂层板上,再将光刻玻璃图层板上的3D全息图像复制于镍板上,通过将镍板贴合于模压机的压辊表面,使得模压机能够压印3D全息图像,压印的基材采用热塑性聚合物薄膜,其上涂布有离型层、色彩涂层以及热熔涂层,压印后的薄膜能够显示更为立体的3D全息图像,且图像、色彩稳定。(The invention provides a laser 3D holographic thermoprinting film and a preparation process thereof, wherein a 3D holographic image is formed on a photoetching glass coating plate by a laser imaging technology, then the 3D holographic image on a photoetching glass pattern laminate plate is copied on a nickel plate, the nickel plate is attached to the surface of a press roller of a mould press, so that the mould press can stamp the 3D holographic image, a thermoplastic polymer film is adopted as a substrate for stamping, a release layer, a color coating and a hot melt coating are coated on the thermoplastic polymer film, the stamped film can display a more three-dimensional 3D holographic image, and the image and the color are stable.)

1. A preparation process of a laser 3D holographic thermoprinting film is characterized by comprising the following steps: the preparation process comprises the following steps:

(1) preparing a mould pressing plate: imaging a 3D holographic image on a photoetching glass coating plate through laser, copying the 3D holographic image on the photoetching glass coating plate on a nickel plate through an electroforming method, and finally taking the nickel plate as a mould pressing plate and attaching the 3D holographic image to the surface of a pressing roller of a mould pressing machine;

(2) coating a release layer: coating the release agent on a thermoplastic polymer film substrate, and drying to form a release agent layer;

(3) printing a color coating: coloring the ink on the release layer by using a gravure printing machine;

(4) covering a hot-melt coating: covering the color coating with a hot-melt coating to obtain a composite base material;

(5) and (3) embossing: and (3) impressing the composite base material by using a mould press stuck with the nickel plate to prepare the laser 3D holographic hot stamping film.

2. The preparation process of the laser 3D holographic hot stamping film according to claim 1, characterized in that: in the step (1), the 3D holographic image is imaged on the photoetching glass coating plate by a photographing method or a computer dot matrix photoetching technology.

3. The preparation process of the laser 3D holographic hot stamping film according to claim 1, characterized in that: in the step (1), the thickness of the nickel plate is 15-80 microns.

4. The preparation process of the laser 3D holographic hot stamping film according to claim 1, characterized in that: in the step (2), the thickness of the thermoplastic polymer film is 12-30 microns, and the thermoplastic polymer film is one of a biaxially oriented polypropylene film, a polyethylene terephthalate film or a polyvinyl chloride film.

5. The preparation process of the laser 3D holographic hot stamping film according to claim 1, characterized in that: in the step (2), the coating thickness of the release agent is 9 microns.

6. The preparation process of the laser 3D holographic hot stamping film according to claim 1, characterized in that: in the step (3), the gravure printing machine adopts a 6-10 color gravure printing machine.

7. The preparation process of the laser 3D holographic hot stamping film according to claim 1, characterized in that: in the step (3), the ink is one of water-based ink, solvent ink, ultraviolet ink or curing ink.

8. The preparation process of the laser 3D holographic hot stamping film according to claim 1, characterized in that: in the step (4), the hot-melt coating is one of a coating hot-melt adhesive, a laminating hot-melt adhesive film or a hot laminating, wherein the hot-melt adhesive film is one of a polyurethane hot-melt adhesive film, an ethylene-polyvinyl acetate hot-melt adhesive film, an ethylene-acrylic acid hot-melt adhesive film or a polyester hot-melt adhesive film.

9. The preparation process of the laser 3D holographic hot stamping film according to claim 1, characterized in that: in the step (5), the temperature of the stamping is 180-260 ℃.

10. The utility model provides a holographic thermoprint membrane of laser 3D which characterized in that: the laser 3D holographic hot stamping film is prepared by the preparation process of the laser 3D holographic hot stamping film as claimed in claims 1-9.

Technical Field

The invention relates to the technical field of printing, in particular to a laser 3D holographic hot stamping film and a preparation process thereof.

Background

Hot stamping, commonly called "gold stamping", means that characters and patterns of materials such as color foils are stamped on the first or fourth seal of a hardcover book envelope and the book back, or various convex-concave book titles or patterns are stamped by a hot pressing method, the existing hot stamping, particularly the hot stamping of three-dimensional patterns, can only stamp simple convex-concave patterns, and has poor three-dimensional effect; in order to improve the three-dimensional effect, the three-dimensional effect is generally processed on the surface of an object by a laser method, but the laser equipment is high in price, cannot be processed on a film, and is large in limitation.

Therefore, a laser 3D holographic hot stamping film and a preparation process thereof are needed to solve the problem of poor stereoscopic effect of the existing hot stamping film.

Disclosure of Invention

The invention aims to provide a laser 3D holographic hot stamping film and a preparation process thereof, and aims to solve the problem that the existing hot stamping film is poor in three-dimensional effect.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a preparation process of a laser 3D holographic hot stamping film, which comprises the following steps:

(1) preparing a mould pressing plate: imaging a 3D holographic image on a photoetching glass coating plate through laser, copying the 3D holographic image on the photoetching glass coating plate on a nickel plate through an electroforming method, and finally taking the nickel plate as a mould pressing plate and attaching the 3D holographic image to the surface of a pressing roller of a mould pressing machine;

(2) coating a release layer: coating the release agent on a thermoplastic polymer film substrate, and drying to form a release agent layer;

(3) printing a color coating: coloring the ink on the release layer by using a gravure printing machine;

(4) covering a hot-melt coating: covering the color coating with a hot-melt coating to obtain a composite base material;

(5) and (3) embossing: and (3) impressing the composite base material by using a mould press stuck with the nickel plate to prepare the laser 3D holographic hot stamping film.

Preferably, in step (1), the 3D holographic image is imaged on the photo-etched glass-coated plate by a photo-taking method or a computer dot-matrix lithography technique.

Preferably, in the step (1), the thickness of the nickel plate is 15-80 microns.

Preferably, in the step (2), the thickness of the thermoplastic polymer film is 12 to 30 micrometers, and the thermoplastic polymer film is one of a biaxially oriented polypropylene film, a polyethylene terephthalate film or a polyvinyl chloride film.

Preferably, in the step (2), the coating thickness of the release agent is 9 micrometers.

Preferably, in the step (3), the gravure printing machine is a 6-10 color gravure printing machine.

Preferably, in the step (3), the ink is one of water-based ink, solvent ink, ultraviolet ink or curing ink.

Preferably, in the step (4), the hot-melt coating is one of a hot-melt adhesive coating, a hot-melt adhesive film laminating or a hot laminating, wherein the hot-melt adhesive film is one of a polyurethane hot-melt adhesive film, an ethylene-polyvinyl acetate hot-melt adhesive film, an ethylene-acrylic acid hot-melt adhesive film or a polyester hot-melt adhesive film.

Preferably, in the step (5), the temperature of the stamping is 180-260 ℃.

The invention further provides a laser 3D holographic hot stamping film, and the laser 3D holographic hot stamping film is prepared by the preparation process of the laser 3D holographic hot stamping film.

Compared with the prior art, the invention has the following beneficial technical effects:

the invention provides a laser 3D holographic thermoprinting film and a preparation process thereof, wherein a 3D holographic image is formed on a photoetching glass coating plate by a laser imaging technology, the 3D holographic image on a photoetching glass pattern laminate plate is copied on a nickel plate, the nickel plate is attached to the surface of a press roller of a mould press, so that the mould press can stamp the 3D holographic image, a thermoplastic polymer film is adopted as a substrate for stamping, a release layer, a color coating and a hot melt coating are coated on the thermoplastic polymer film, the stamped film can display a more three-dimensional 3D holographic image, and the image and the color are stable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a flow chart of a preparation process of a laser 3D holographic hot stamping film provided by the invention;

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide a laser 3D holographic hot stamping film and a preparation process thereof.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.