Method for further curing adhesive layer of transfer printing film subjected to transfer printing

A technology for transferring printing film and curing method, which is applied in the production of special varieties of printed matter, such as printing, post-printing, and printing. , The effect of low curing shrinkage

Active Publication Date: 2013-03-20
广东东田转印新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the adhesive layer after transfer is located under the graphic decoration layer, and the graphic decoration layer is often transparent in some areas, and has color in some areas, these colored layers have a great influence on the penetration of ultraviolet light. Influence, the darker the color, the greater the weakening of the penetration of ultraviolet light, so when the surface of the substrate is irradiated with ultraviolet light, the area that is not blocked by the color layer, the ultraviolet curing adhesive is well cured, and is blocked by the color layer Due to the weakened penetration of ultraviolet light, the curing effect of the ultraviolet curing adhesive will be affected. In the product formed in this way, the graphic decoration layer and the surface of the substrate will be firmly bonded in some areas and not firmly bonded in some areas. Happening
In addition, the polymerization inhibition effect of oxygen will also have a certain impact on the graphics and text.

Method used

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  • Method for further curing adhesive layer of transfer printing film subjected to transfer printing
  • Method for further curing adhesive layer of transfer printing film subjected to transfer printing
  • Method for further curing adhesive layer of transfer printing film subjected to transfer printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Preparation of printing film

[0025] figure 1 It is the first printing film of the present invention. The top layer of the printing film is the base film 1, the second layer is the acrylic resin layer 2, the third layer is the printing ink layer 3, 3', and the fourth layer is the adhesive layer 4. The production process is as follows: using a gravure printing machine or a coating machine, an acrylic resin layer is applied to the surface of a base film as a release protection layer, and a pre-designed decorative image is printed on the acrylic resin layer with ink (mainly yellow) Text, use the gravure printing machine to directly print the adhesive on the graphic layer or coat the adhesive on the coating machine, rewind, slit and package the finished product.

[0026] The adhesive layer uses the following formula:

[0027] Epoxy resin 40%

[0028] Polyester acrylate resin 25%

[0029] TPGDA 10% produced by Sartomer

[0030] Cationic initiator produced by Ciba, USA 2617%

[003...

Embodiment 2

[0043] 1. Preparation of printing film

[0044] figure 2 It is another printing film of the present invention. The top layer of the printing film is base film 1, the second layer is acrylic resin layer 2, the third layer is printing ink layer 3, the fourth layer is aluminum plating layer 5, and the fifth layer is Adhesive layer 4. The production process is as follows: using a gravure printing machine or a coating machine, an acrylic resin layer is applied to the surface of a base film as a release protection layer, and a pre-designed decorative image is printed on the acrylic resin layer with ink (mainly yellow) In the text, the graphic layer is vacuum-plated with aluminum, and then the adhesive is directly printed on the aluminum-plated layer with a gravure printing machine or the adhesive is coated on the coating machine, and the finished product is wound, slit, and packaged.

[0045] The adhesive layer uses the following formula:

[0046] Vinyl resin 40%

[0047] Polyurethane ac...

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Abstract

A method for ultraviolet curing an adhesive layer in a thermal transfer film is disclosed. The method includes the following steps: sticking the adhesive layer on a surface of printing stock through heating and pressurizing; peeling a carrier layer in the thermal transfer film to transfer an image layer in the thermal transfer film onto the surface of printing stock; and further curing the adhesive layer by subjecting to an ultraviolet radiation. The adhesive layer comprises prepolymer, reactive diluents, resin, curing agent and additives. The curing agent comprises cationic photoinitiator and free-radical photoinitiator. This method has the advantage of good curing effect, improved adhesive performance, lower curing shrinkage rate and excellent image surface smoothness.

Description

Technical field [0001] The present invention relates to a curing method, in particular to a curing method of a transfer printing film containing an ultraviolet light curing adhesive transfer printing film, and more particularly to a further curing method of an adhesive layer after transfer of the UV curing adhesive transfer printing film. Background technique [0002] The traditional thermal transfer printing film generally includes a carrier film, a graphic decoration layer and an adhesive layer. When transferring, through the action of heat and pressure, the adhesive force of the adhesive layer is used to make the graphic decoration layer separated from the carrier film and transferred to the substrate. 物surface. In traditional thermal transfer printing films, the adhesive layer is usually a hot-melt adhesive layer. Because the hot-melt adhesive has the characteristics of being repeated when heated, for some special products, such as certain substrate products that need high tem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M7/00B41M3/12C09J167/06C09J175/14C09J163/10
CPCC09J4/00B44C1/17
Inventor 陈松洲黄铁纯李漫洵曾乐萍陈思涵
Owner 广东东田转印新材料有限公司
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