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Preparation method of holographic transfer film for replacing holographic gold stamping

A transfer film and holographic technology, which is applied in the direction of copying/marking methods, chemical instruments and methods, special decorative structures, etc., can solve the problems of reducing the luster of product bronzing patterns, low stability and production efficiency, and damage to holographic anti-counterfeiting patterns, etc., to achieve enhanced Anti-counterfeiting effect, improving the difficulty of copying, and the effect of excellent holographic patterns

Active Publication Date: 2012-05-23
WUHAN HUAGONG IMAGE TECH & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, as far as the current hot stamping process is concerned, regardless of the flat pressing method, or the round pressing method, or the round pressing method, it must be cut into a single sheet, which has a long production cycle and low efficiency.
For products with large batches, although gravure printing can effectively solve the problems of poor stability and low production efficiency, if hot stamping is used later, it will seriously restrict production efficiency, increase production costs, and poor stability
Due to the high temperature and pressure in the bronzing process, it will also cause some damage to the holographic anti-counterfeiting pattern, which not only reduces the luster of the bronzing pattern of the product, but also greatly weakens the anti-counterfeiting strength of the product

Method used

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Examples

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preparation example Construction

[0027] The preparation method of the holographic transfer film replacing the holographic bronzing in the embodiment of the present invention includes the following steps:

[0028] 1. The coating machine adopts a gravure roller coating machine. The coating roller can be an electric engraving roller or a ceramic roller, and the mesh number is about 120-250 mesh. The transfer coating with the release and imaging functions is applied on the On the specified width PET film, the dry coating amount is 0.8~1.6g / m 2 Between, dry and solidify;

[0029] 2. Carry out the specified electroforming plate molding on the molding machine, and transfer and copy the holographic pattern on the electroforming plate to the imaging coating;

[0030] 3. Vacuum aluminum plating is carried out in a winding vacuum aluminum plating machine. The thickness of the aluminum plating layer is generally about 15-60nm, which can be adjusted according to actual requirements to form an aluminum plating film;

[0...

Embodiment 1

[0039] 1. The coating machine adopts a gravure roll coating machine, and the coating roll is a 180-mesh ceramic roll. The transparent transfer coating with the release and imaging functions is coated on the PET film with a thickness of 15μ, and the dry coating amount is 1.2g. / m 2 , drying and curing;

[0040] 2. Carry out plain surface electroforming plate molding on a seamless molding machine, and transfer and copy the holographic pattern on the electroforming plate to the imaging coating;

[0041] 3. Vacuum aluminum plating is carried out in a winding vacuum aluminum plating machine. The thickness of the aluminum plating layer is generally about 40nm, and the aluminum plating film is made;

[0042] 4. Coat aluminum washing protective ink on the gravure coating machine, use the designed bronzing pattern roll for gravure printing, coat the protective ink, dry and solidify.

[0043]5. In the aluminum washing machine, soak with alkaline water to wash off the blank part of the...

Embodiment 2

[0049] 1. The coating machine adopts a gravure roller coating machine, and the coating roller adopts a 150-mesh ceramic roller, and coats the transfer coating with a release and imaging function on a PET film with a thickness of 19μ, and the dry coating amount is 1.05 g / m 2 Left and right, dry and solidify;

[0050] 2. Carry out optical column electroforming plate molding on a slit molding machine, and transfer and copy the holographic pattern on the electroforming plate to the imaging coating;

[0051] 3. Carry out vacuum aluminum plating in a winding vacuum aluminum plating machine, the thickness of the aluminum layer is about 25nm, and make an aluminized film;

[0052] 4. Coat aluminum washing protective ink on the gravure coating machine, use the designed bronzing pattern roll for gravure printing, coat the protective ink, dry and solidify.

[0053] 5. In the aluminum washing machine, soak with alkaline water to wash off the blank part of the aluminum layer that is not c...

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Abstract

The invention relates to a preparation method of a holographic transfer film for replacing holographic gold stamping, which comprises the following steps that: a gravure coating machine is adopted, transfer paint with integrated parting and imaging functions is coated on a polyethylene terephthalate (PET) film, and baking and curing are carried out; the mold pressing is carried out on a mold pressing machine, and holographic patterns are copied onto imaging coatings; the vacuum aluminum plating is carried out; a printing aluminum washing protection ink version roller is designed according to gold stamping pattern requirements, and protection ink is printed; the aluminum washing is carried out in an aluminum washing machine, and aluminum layers in positions without printing the protection ink are washed away and baked; extinction oil is coated on the coating machine, and the holographic patterns in hollow positions, i.e. the positions in which the aluminum layers are washed away are removed; the transfer film and paper are compounded on a compounding machine; the PET film is peeled off on a peeling machine and is recovered and utilized, so the transfer paper with the holographic patterns is made; and printing products with holographic gold stamping patterns are made through subsequent offset printing or intaglio printing and the like. The method can completely replace the holographic gold stamping process, the production efficiency is high, and the method is suitable for the large-scale production operation.

Description

technical field [0001] The invention specifically relates to a preparation method of a holographic transfer film that replaces holographic bronzing, and belongs to the technical field of packaging and anti-counterfeiting. Background technique [0002] With the improvement of the national economy and the development of the printing and packaging industry, people's requirements for product packaging are not only high-end, exquisite, environmentally friendly, and full of personalization, but also hope that the authenticity of the product can be identified through the product packaging. Therefore, the holographic bronzing technology with anti-counterfeiting function is more and more widely used in the post-press processing of packaging products, and is favored by consumers because of its luxurious and exquisite appearance. It is widely used in high-end packaging such as cigarette labels, medicines, cosmetics, and wine. [0003] However, as far as the current hot stamping proces...

Claims

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Application Information

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IPC IPC(8): B41M5/00B32B15/09B32B15/12B44C5/04B32B38/10
Inventor 郑成赋牟靖文周敏
Owner WUHAN HUAGONG IMAGE TECH & DEV
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