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Primer-free coating method of self-adhesive acrylate emulsion and coating system implementing primer-free coating method

A technology of acrylate and coating method, which is applied in the direction of surface coating liquid device, coating, pretreatment surface, etc., which can solve the problems of inability to meet product testing requirements, easy fatigue, missed inspection costs, etc., and achieve heat sealing Excellent performance and peel strength, increased productivity, and low cost effects

Active Publication Date: 2015-02-18
HAINAN SHINER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] With the increasing automation of manufacturing enterprises, the control requirements for product surfaces are becoming more and more stringent. The appearance defects of products directly affect the quality of products and the development of enterprises. For product appearance defects, traditional naked eye observation cannot meet high-speed inspection. The detection requirements of the products produced, and the precision is low, easy to fatigue, easy to cause missed detection and increase the cost

Method used

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  • Primer-free coating method of self-adhesive acrylate emulsion and coating system implementing primer-free coating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Unwinding process: under a constant unwinding tension of 35N, the BOPP reel-shaped film with a thickness of 19μm is flatly unrolled into a continuous and stable operation;

[0033] 2. Plasma treatment process: the surface tension of the base film after treatment reaches 75dyn / cm;

[0034] 3. Top coating process: the plasma-treated film enters the top coating process, using reverse gravure coating, through the cooperation of the coating roller and the scraper, the self-adhesive AC emulsion of the top coating is transferred from the trough to the film surface through the coating roller , where the coating process is transferred to the film surface by the coating roller and the coating is controlled at 0.8g / m 2 , the coating thickness is 0.5 μm, and the tension of the coating film is controlled at 30N; wherein the wax emulsion and silica anti-adhesive agent are added to the self-adhesive AC emulsion of the top coating; the self-adhesive AC emulsion is combined with the ...

Embodiment 2

[0040] 1. Unwinding process: Under the constant unwinding tension of 40N, the BOPET reel-shaped film with a thickness of 12μm is flatly unrolled into a continuous and stable operation;

[0041] 2. Plasma treatment process: the surface tension of the base film after treatment reaches 78dyn / cm;

[0042] 3. Top coating process: the plasma-treated film enters the top coating process, using reverse gravure coating, through the cooperation of the coating roller and the scraper, the self-adhesive AC emulsion of the top coating is transferred from the trough to the film surface through the coating roller , wherein the coating process is transferred to the film surface by the coating roller and the coating is controlled at 1.0g / m 2 , the coating thickness is 0.6μm, and the tension of the coating film is controlled at 50N; among them, wax emulsion and silica anti-adhesive agent are added to the self-adhesive AC emulsion of the top coating; among them, the self-adhesive AC emulsion and w...

Embodiment 3

[0048] 1. Unwinding process: Under a constant unwinding tension of 45N, the BOPA roll-shaped film with a thickness of 28μm is flatly unrolled into a continuous and stable operation;

[0049] 2. Plasma treatment process: the surface tension of the base film after treatment reaches 80dyn / cm;

[0050] 3. Top coating process: the plasma-treated film enters the top coating process, using reverse gravure coating, through the cooperation of the coating roller and the scraper, the self-adhesive AC emulsion of the top coating is transferred from the trough to the film surface through the coating roller , where the coating process is transferred to the film surface by the coating roller and the coating is controlled at 1.4 / m 2 , the coating thickness is 0.8μm, and the tension of the coating film is controlled at 60N; among them, wax emulsion and silica anti-adhesive agent are added to the top coat AC emulsion; among them, self-adhesive self-adhesive AC emulsion and wax emulsion, silica ...

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Abstract

The invention provides a primer-free coating method of a self-adhesive acrylate emulsion and a coating system implementing the primer-free coating method. The coating method is high in coating uniformity, the adhesive force of a coating and a base material is high, defect inspection on the surface of a film is strict, and the quality is better. An obtained coating film is good in heat sealability and high in peeling strength after compounding; moreover, the film can be easily fed on the equipment, and smaller tension is needed, so that the coating process is controlled more easily, and the coating is more uniform and smoother.

Description

[0001] technical field [0002] The invention relates to a primerless coating method of self-adhesive acrylate emulsion and a coating system for implementing the method. Background technique [0003] In the plastic coating industry, before coating functional coatings, it is necessary to apply a layer of primer to enhance the adhesion between the coating and the plastic substrate film. When producing heat-sealing and printing-type coating films, acrylic (hereinafter referred to as AC) coatings with very good heat-sealing and printing properties on the market are selected, and the primer layer must be used to make the AC coating firmly adhere to the plastic. on the film. [0004] In the production process of traditional coated films, in order to solve the adhesion problem between AC and the film, it is usually necessary to perform corona treatment first, then coat a layer of solvent-based polyurethane adhesive primer layer, dry and then coat Cloth AC fabric. This coating me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/28B05D7/04B05D3/14B05C9/10B05C13/02
Inventor 邢青涛宋军军林鹏冯任明
Owner HAINAN SHINER IND
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