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Pre-coated film, preparation method thereof and printed matter

A technology for pre-coating film and printed matter, applied in the direction of coating, polyurea/polyurethane coating, film/flaky adhesive, etc. Friction and other issues, to achieve the effect of good friction resistance

Inactive Publication Date: 2015-09-16
NEW ERA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the anti-friction performance of the pre-coating film provided by the prior art is poor, and the anti-friction effect cannot be achieved after being combined with paper, resulting in the surface of the printed matter being easily scratched

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0042] The invention provides a kind of preparation method of precoat film, comprising:

[0043] coating the paint on the surface of the plastic substrate to form a paint layer on the surface of the plastic substrate; the paint includes polyurethane and a polyethylenimine crosslinking agent;

[0044] Coating the hot melt adhesive on the other surface of the plastic substrate to obtain a precoated film.

[0045] In the invention, the paint is coated on the surface of the plastic substrate to form a paint layer on the surface of the plastic substrate, and the paint includes polyurethane and a polyethylenimine cross-linking agent. In the present invention, the type and source of the paint and the plastic substrate in the paint layer and the plastic substrate in the paint layer described in the above technical solution are consistent, and will not be repeated here. In the present invention, the thickness of the paint applied on the surface of the plastic substrate is consistent w...

Embodiment 1

[0056] The paint is coated on the surface of the biaxially stretched polypropylene film with a thickness of 15 microns by using a doctor blade coating method, and dried at 50° C. for 1 second by hot air drying, and a thickness of 3 is formed on the surface of the biaxially stretched polypropylene film. micron coating layer;

[0057] The above-mentioned biaxially oriented polypropylene film with a coating layer is harvested into a roll shape, and after cooling and setting, the hot-melt adhesive is extruded and coated on the above-mentioned Biaxially stretch the other surface of the polypropylene film to form a hot melt adhesive layer with a thickness of 15 microns to obtain a precoated film.

[0058] According to the method described in the above technical scheme, the precoat film prepared in Example 1 of the present invention is coated on the surface of paper prints, and the anti-friction performance, anti-fouling performance and touch of the paper prints containing the surfac...

Embodiment 2

[0060] Apply the paint on the surface of biaxially stretched polypropylene film with a thickness of 17 microns by roller coating method, and dry it at 50°C for 1.2 seconds by infrared drying method, forming a thickness of 4 on the surface of biaxially stretched polypropylene film. micron coating layer;

[0061] The above-mentioned biaxially oriented polypropylene film with a coating layer is harvested into a roll shape, and after cooling and setting, the hot-melt adhesive is extruded and coated on the above-mentioned Biaxially stretch the other surface of the polypropylene film to form a hot melt adhesive layer with a thickness of 16 microns to obtain a precoated film.

[0062] According to the method described in the above technical scheme, the precoat film prepared in Example 2 of the present invention is coated on the surface of paper prints, and the anti-friction performance, anti-fouling performance and touch of the paper prints containing the surface of the precoat film ...

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Abstract

The invention provides a pre-coated film which comprises a hot melt adhesive layer, a plastic substrate layer and a coating layer, wherein the plastic substrate layer is arranged on the surface of the hot melt adhesive layer, and the coating layer is arranged on the surface of the plastic substrate layer and comprises polyurethane and polyethylenimin cross-linking agents. The pre-coated film with the coating layer has fine friction resistance, and the surface of a printed matter can be effectively protected after the pre-coated film and the printed matter are combined. The coating layer in the pre-coated film has smooth and exquisite touching sensation of velvet, the pre-coated film and the printed matter are combined, so that the printed matter is thick, solid and full in texture and bright and soft in color, gloss and artistic effects of the printed matter are improved, and the printed matter is effectively decorated. The invention further provides a preparation method of the pre-coated film and the printed matter.

Description

technical field [0001] The invention relates to the technical field of printing coating, in particular to a precoating film, a preparation method thereof and printed matter. Background technique [0002] The pre-coating film process refers to the process of gluing and rewinding the plastic film in advance and then compounding it with paper prints. First, the pre-coating film processing factory applies the glue on the film according to the different specifications and formats for use. The manufacturer chooses, and then laminates with the printed matter; laminating is to coat the plastic film with an adhesive, and heat and pressurize the paper printed matter to bond them together to form a product processing technology that combines paper and plastic. The printed matter after coating has a thin and transparent plastic film on the surface, making the surface smoother and brighter, thereby improving the gloss and fastness of the printed matter, making the graphic color more vivi...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J123/08C09D175/04C09D7/12
Inventor 陈世钦
Owner NEW ERA IND
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