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Novel advertising film with porous adhesive layer structure

An adhesive layer and advertising technology, applied in the directions of adhesives, adhesive types, natural rubber adhesives, etc., can solve the problems of poor environmental protection, insufficient exhaust, and high energy consumption, and achieve easy posting and suitable preparation process. strong effect

Inactive Publication Date: 2018-03-16
DONG GUAN ZHONG SHI TUO ENTERPRISE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patents CN201410243009.5 and CN201420138899.9 use heat-expandable elastic particles to prepare low-viscosity pressure-sensitive adhesives, but do not involve the problem of venting when large areas are pasted; patent CN201410121701.0 uses azo foaming agents to prepare porous venting type For pressure-sensitive adhesives, azo-based foaming agents have high foaming temperature and high energy consumption, so they are only suitable for coating on substrates with good heat resistance; patents CN201610276200.9 and 201610804305.7 mention easy-peeling and venting acrylic pressure-sensitive adhesives Although the preparation method achieves low viscosity and easy peeling effect by reducing the peeling force, because the adhesive layer is still a simple planar structure, the air release is still not enough for large-scale lamination, and it is only suitable for surface lamination of small-area protective films. In addition, a large amount of organic solvents are used in the process of synthesizing adhesives and preparing tapes, which is poor in environmental protection

Method used

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  • Novel advertising film with porous adhesive layer structure
  • Novel advertising film with porous adhesive layer structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add 15 parts of toluene, 1.2 parts of sorbitan laurate and 0.3 parts of sodium lauryl sulfate into the dispersion tank, stir and mix for 10 minutes, then add 36 parts of deionized water and 0.02 parts of polyether modified silicone defoamer , and control the adding speed of water and stirring speed until the phase inversion of the system occurs to form a uniform emulsion. Then, 25 parts of pure acrylic emulsion, 20 parts of self-crosslinking styrene-butadiene latex, 0.3 parts of ammonia water, 1 part of carboxymethyl cellulose solution and 0.7 parts of polyacrylate thickener were sequentially added to the emulsion. Finally, the emulsion is coated on the polypropylene film, and the thickness of the porous adhesive layer is 100 microns. After heating at 80-130°C for 10 minutes, the polypropylene release film is covered to obtain a new advertising film with a porous adhesive layer structure.

Embodiment 2

[0027] Add 15 parts of cyclohexane, 0.9 parts of sorbitan laurate and 1.1 parts of sodium oleate into the dispersion tank, stir and mix for 10 minutes, then add 36 parts of deionized water and 0.02 parts of polyether modified silicone defoaming agent, and control the adding speed of water and stirring speed until the phase inversion of the system occurs to form a uniform emulsion. Then, 25 parts of pure acrylic emulsion, 20 parts of self-crosslinking styrene-butadiene latex, 0.3 parts of ammonia water, 1 part of carboxymethyl cellulose solution and 0.7 parts of polyacrylate thickener were sequentially added to the emulsion. Finally, the emulsion is coated on the polypropylene film, and the thickness of the porous adhesive layer is 100 microns. After heating at 80-130°C for 10 minutes, the polypropylene release film is covered to obtain a new advertising film with a porous adhesive layer structure.

Embodiment 3

[0029] Add 15 parts of toluene, 1.2 parts of sorbitan laurate and 0.3 part of sodium lauryl sulfate into the dispersion tank, stir and mix for 10 minutes, then add 36 parts of deionized water and 0.01 part of polyether modified silicone defoamer , and control the adding speed of water and stirring speed until the phase inversion of the system occurs to form a uniform emulsion. Then, 15 parts of water-soluble polyacrylate, 10 parts of polyvinyl ether, 20 parts of natural latex, 0.3 part of ammonia water, 1 part of hydroxyethyl cellulose solution and 1 part of polyacrylate thickener were sequentially added to the emulsion. Finally, the emulsion is coated on the polyester film, and the thickness of the porous adhesive layer is 100 microns. After heating at 80-130°C for 10 minutes, the polyester release film is covered to obtain a new type of advertising film with a porous adhesive layer structure.

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Abstract

The invention provides a novel advertising film with a porous adhesive layer structure. The novel advertising film comprises a base membrane of the novel advertising film, a porous adhesive layer anda release layer, wherein the volume of porous channels in the porous adhesive layer accounts for 35 to 80 percent of that of the adhesive layer; the apertures of the porous channels are 1 to 200 micrometers, and the thickness of the porous adhesive layer is 50 to 200 micrometers. Compared with a traditional back gum adhesive technology, the novel advertising film disclosed by the invention has theadvantages that with structural design, a large amount of porous channels are prepared in the adhesive layer, the advertising film is helped to absorb and exhaust bubbles generated by pasting, and surface evenness of the advertising film is ensured.

Description

technical field [0001] The invention belongs to the field of advertising consumables, in particular to a novel advertising film with a porous glue layer structure. Background technique [0002] With the increasingly widespread application of digital printing technology in the field of advertising, the demand for advertising films is increasing. At present, advertising films are mainly pasted with adhesive. In order to ensure firm posting, the adhesive used is mainly high Viscous adhesives have poor exhaust performance when pasted, and air bubbles will be generated between the advertising film and the substrate to be pasted. Professional methods need to be used to scrape off the bubbles, and the convenience of pasting is not high. Residual glue is left on the surface of the adherend, which needs to be wiped off, which affects the appearance and efficiency of advertising replacement. Therefore, easy-to-post, removable and reusable properties have gradually become new requirem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/30C09J7/24C09J7/25C09J7/40C09J133/04C09J107/02C09J109/08C09J101/28
CPCC08L2205/035C09J107/02C09J133/04C09J2400/00C09J2407/00C09J2409/00C09J2423/106C09J2433/00C09J2467/006C08L9/08C08L1/286C08L33/04C08L29/10C08L1/284
Inventor 刘磊韩靖刘建伟冯竞伟
Owner DONG GUAN ZHONG SHI TUO ENTERPRISE
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