Scratch resistant precoating film

An anti-scratch, pre-coating film technology, used in coatings, polyurea/polyurethane coatings, film/flake adhesives, etc. Hot melt adhesive bonding and other issues to increase color diversity, enhance wear resistance and scratch resistance, and save energy.

Active Publication Date: 2016-04-13
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 componen

Method used

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  • Scratch resistant precoating film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Example 1: Making a black scratch-resistant nylon pre-coating film:

[0055] Using 30 parts by weight of polycarbonate polyurethane dispersion, 0.01 parts by weight of basic magnesium sulfate whiskers, 70 parts by weight of self-dulling polyurethane resin, 0.05 parts by weight of ionic polyacrylate solution, 0.1 parts by weight not containing Silicone and mineral oil defoamer, 3 parts by weight of aziridine cross-linking curing agent, no thickening agent, 5 parts by weight of water and ethanol 1:1 mixed solvent to adjust the system viscosity, high-speed stirring and mixing evenly .

[0056] Then the aqueous coating liquid is pumped into the intermediate tank through the liquid supply pump.

[0057] A 22-micron nylon film is selected for the substrate layer. After the nylon film is stretched longitudinally through the stretching equipment, the surface of the nylon film is corona treated by the corona equipment, and the corona machine power is selected as 0.8KW. At the same ti...

Embodiment 2

[0064] Example two, red anti-scratch polypropylene tackifying pre-coating film:

[0065] The coating solution contains: 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 not containing Silicone and mineral oil defoamer; 15 parts by weight of HDI-IPDI composite trimer curing agent, 0.15 parts by weight of associative polyurethane thickener, no water added.

[0066] Then the aqueous coating liquid is pumped into the intermediate tank through the liquid supply pump.

[0067] A 15-micron polypropylene film is selected for the substrate layer. After the polypropylene film is stretched longitudinally by the stretching device, a corona device is required to corona treatment the surface of the polypropylene film, and the corona machine strength is selected as 0.8KW. At the same time, the intermediate pump pum...

Embodiment 3

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

[0076] Using 45 parts by weight of fatty acid polyurethane dispersion, 10 parts by weight of calcium carbonate whiskers, 40 parts by weight of self-dull polyurethane resin, 0.20 parts by weight of ionic polyacrylate solution, 0.5 parts by weight of silicone and mineral oil-free waste 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 liquid is driven into the intermediate tank through the liquid supply pump.

[0078] After the polyester film is longitudinally stretched by the stretching equipment, the surface of the polyester film is corona treated by the corona equipment, and the corona machine strength is selected as 0.8KW. At the same time, the intermediate pump pumps the aqueous coating liquid in the intermediate tank into the closed doctor bla...

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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 present invention relates to the field of printing, in particular to a scratch-resistant pre-coating film that can improve the adhesion effect with printed matter and can be applied online. Background technique [0002] At present, in the pre-coated film industry, the coating methods for printed matter include offline and online coating methods. [0003] Among them, the off-line coated substrate is likely to cause surface defects such as scratches and contamination during repeated winding, unwinding, slitting, and transportation processes. At the same time, the coating of off-line coated products is not easy to grasp uniformly, and the coating is thick, which cannot meet the performance requirements of some special products. [0004] The on-line coating is done on-line, the coating thickness is adjustable, and the on-line coating does not require any pretreatment of the substrate, will not damage the body performance of the substrate, and has no degradatio...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09D175/04C09D175/06C09D175/08C09D7/12
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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