A pre -coating film

A scratch-resistant, pre-coated film technology, applied in the printing field, can solve the problems of insufficient bonding between printed matter and film, high content of inorganic components, and difficulty in hot-melt adhesive bonding, etc., to increase color diversity and enhance wear resistance Scratch ability, energy saving effect

Active Publication Date: 2018-10-12
张家港保税区康得菲尔实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when online coating is used for some printed products that require special treatment, it is prone to delamination
For example, the ink used on the surface of digital prints often contains silicone oil or wax. Silicone oil and wax contain a large amount of inorganic components. It is not easy to combine with the hot melt adhesive in the pre-coated film when covering the film. The degree of bonding between the printed matter and the film is not enough , especially in the rolling line and embossing after lamination, it is easy to appear delamination phenomenon

Method used

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  • A pre -coating film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Embodiment one, make black anti-scratch nylon precoat film:

[0055] Adopt the polycarbonate polyurethane dispersion of 30 weight parts, the basic magnesium sulfate whisker of 0.01 weight part, the self-dulling polyurethane resin of 70 weight parts, the ionic polyacrylate solution of 0.05 weight part, 0.1 weight part does not contain Antifoaming agent for silicone and mineral oil, 3 parts by weight of aziridine cross-linking curing agent, no thickener, 5 parts by weight of water and ethanol 1:1 mixed solvent to adjust the viscosity of the system, high-speed stirring to mix evenly .

[0056] Then the water-based coating solution is pumped into the intermediate tank through the liquid supply pump.

[0057] A 22-micron nylon film is selected as the substrate layer, and after the nylon film is stretched longitudinally by a stretching device, the surface of the nylon film is subjected to corona treatment by a corona device, and the power of the corona machine is selected as...

Embodiment 2

[0064] Example 2, red anti-scratch polypropylene tackifying precoat film:

[0065] Wherein the coating solution comprises: 60 parts by weight of polyether polyurethane dispersion, 5 parts by weight of potassium titanate whiskers, 55 parts by weight of self-dulling polyurethane resin, 0.15 parts by weight of ionic polyacrylate solution, 0.3 parts by weight of Defoamer for silicone and mineral oil; 15 parts by weight of HDI-IPDI composite trimer curing agent, 0.15 parts by weight of associative polyurethane thickener, without adding water.

[0066] Then the water-based coating solution is pumped into the intermediate tank through the liquid supply pump.

[0067] 15 micron polypropylene film is selected for the substrate layer. After the polypropylene film is stretched longitudinally by a stretching device, a corona device is required to perform corona treatment on the surface of the polypropylene film. The strength of the corona machine is selected as 0.8KW. At the same time, t...

Embodiment 3

[0075] Example 3, blue anti-scratch polyester digital pre-coating film:

[0076] Adopt the fatty acid type polyurethane dispersion of 45 parts by weight, the calcium carbonate whisker of 10 parts by weight, 40 parts by weight self-dulling polyurethane resins, 0.20 parts by weight of ionic polyacrylate solution, 0.5 parts by weight of non-organic silicon and mineral oil Foaming agent, 8 parts by weight of polycarbodiimide curing agent, 0.08 parts by weight of associative polyurethane thickener, and 10 parts by weight of water.

[0077] Then the water-based anti-scratch coating solution is pumped into the intermediate tank through the liquid supply pump.

[0078] After the polyester film is longitudinally stretched by stretching equipment, the surface of the polyester film is subjected to corona treatment by corona equipment, and the strength of the corona machine is selected as 0.8KW. At the same time, the intermediate pump pumps the water-based coating liquid in the intermedi...

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Abstract

The invention provides a scratch resistant precoating film. The scratch resistant precoating film sequentially comprises a scratch resistant substrate layer, a color layer, a hot melt adhesive layer and a treatment layer from outside to inside, and the scratch resistant substrate layer is formed through coating the upper surface of a polymer film with a modified aqueous scratch-resistant coating liquid in an online coating mode. The aqueous scratch-resistant coating layer is coated in an online coating mode, so the polymer film functional treatment technology is simplified, energy is saved, and the product yield is improved.

Description

technical field [0001] The invention relates to the field of printing, in particular to an anti-scratch precoat film that can improve the adhesion effect with printed matter and can be coated on-line. Background technique [0002] At present, in the pre-coating film industry, the coating methods for printed matter include offline and online coating methods. [0003] Among them, the substrate coated off-line is prone to surface defects such as scratches and pollution during repeated winding, unwinding, slitting, and handling. At the same time, the coating of off-line coating products is not easy to control evenly, and the coating is thick, which cannot meet the performance requirements of some special products. [0004] On-line coating is done on-line, the coating thickness can be adjusted, and on-line coating does not require any pretreatment of the substrate, and will not damage the bulk properties of the substrate, and has no degradation effect. Now it has become the mos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/50C09D175/04C09D175/06C09D175/08C09D7/61C09D7/63C09D7/65
CPCC08K2201/016C08L2205/02C08L2205/03C09D7/70C09D175/04C09D175/08C09J7/20C09J2433/003C09J2475/003C08L75/04C08L33/08C08K7/08
Inventor 武俊赵斌
Owner 张家港保税区康得菲尔实业有限公司
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