Preparation method of foamless self-adhesive for KT board (foam board)

A technology of backing glue and rubber, which is applied in the field of preparation of non-foaming backing glue for KT boards, can solve problems such as insufficient adhesion of acrylate pressure-sensitive adhesives, achieve improved residual adhesion rate, excellent adhesion performance, and improve adhesion The effect of intensity

Active Publication Date: 2014-07-02
滁州云林数码影像耗材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The preparation method of a kind of non-foaming adhesive for KT board provided by the present invention, especially provides a kind of preparation method of rubber / acrylate graft copolymer pressure-sensitive adhesive, to overcome the acrylate pressure-sensitive adhesive in the prior art The problem of insufficient adhesion

Method used

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  • Preparation method of foamless self-adhesive for KT board (foam board)
  • Preparation method of foamless self-adhesive for KT board (foam board)
  • Preparation method of foamless self-adhesive for KT board (foam board)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Rubber / acrylate graft copolymer pressure-sensitive adhesives and non-polar group grafted acrylate pressure-sensitive adhesives are rolled to treat the release layer of the release paper as follows:

[0057] The synthesis process of rubber / acrylate graft copolymer pressure-sensitive adhesive is as follows: masticate natural rubber on an open mill, mix evenly and discharge the material, then use toluene to heat up and dissolve the mixed rubber cut into small pieces, and set aside ; Accurately weigh and dissolve 10 parts of vinyl acetate, 40 parts of ethyl acrylate, 1 part of methacrylic acid, 0.5 parts of dibenzoyl peroxide, 2 parts of propylene oxide, and 0.1 part of butyl titanate in 10 parts of ethyl acetate , mix evenly, and set aside; add the prepared rubber solution into the reactor, stir and heat up to the polymerization temperature of 50°C, take 1 / 5 of the above-mentioned mixed monomer with dibenzoyl peroxide added into the reactor Stir continuously, add the remai...

Embodiment 2

[0062] Rubber / acrylate graft copolymer pressure-sensitive adhesives and non-polar group grafted acrylate pressure-sensitive adhesives are rolled to treat the release layer of the release paper as follows:

[0063] The synthesis process of rubber / acrylate graft copolymer pressure-sensitive adhesive is as follows: masticate nitrile rubber on an open mill, then mix evenly and discharge the material, then use toluene to dissolve the mixed rubber cut into small pieces, Standby; Accurately weigh 10 parts of acrylamide, 40 parts of 2-ethylhexyl acrylate, 1 part of hydroxypropyl methacrylate, 0.5 parts of dibenzoyl peroxide, 3 parts of propylene oxide, and butyl titanate Dissolve 0.2 parts in 10 parts of toluene, mix well, and set aside; add the prepared rubber solution into the reactor, stir and heat up to the polymerization temperature of 50°C, take 1 / 5 was added to the reactor and stirred continuously, and after 1 hour, the remaining mixed monomers were added dropwise, and reacted...

Embodiment 3

[0068] Rubber / acrylate graft copolymer pressure-sensitive adhesives and non-polar group grafted acrylate pressure-sensitive adhesives are rolled to treat the release layer of the release paper as follows:

[0069] The synthesis process of rubber / acrylate graft copolymer pressure-sensitive adhesive is as follows: masticate styrene-butadiene rubber on an open mill, and then mix evenly before discharging, and then use toluene to heat up and dissolve the mixed rubber cut into small pieces. Standby; accurately weigh 30 parts of acrylonitrile, 60 parts of butyl acrylate, 5 parts of acrylic acid, 6 parts of dibenzoyl peroxide, 5 parts of propylene oxide, and 0.3 parts of butyl titanate in 30 parts of toluene, mix Uniform, ready for use; add the prepared rubber solution into the reactor, stir and heat up to the polymerization temperature of 100°C, take 4 / 5 of the above-mentioned mixed monomer with dibenzoyl peroxide added into the reactor and keep stirring, After 3 hours, add the rema...

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Abstract

The invention refers to a preparation method of a foamless self-adhesive for a KT board (foam board). The preparation method mainly comprises the preparation of acrylate pressure-sensitive adhesive and the reduction of transfer of organic silicon of release paper, the acrylate pressure-sensitive adhesive is prepared through graft copolymerization of rubbers and acrylic monomers, and the deficiency of insufficient adhesive force of acrylate pressure-sensitive adhesive is overcome. Before the pressure-sensitive adhesive is coated onto the release paper, the coating surface of the release paper is laminated by an adhesive for carrying out removal treatment of silicone oil micromolecule from a cured silicon layer of the release paper, so that the problem that the adhesiveness of the pressure-sensitive adhesive is decreased because the silicone oil on the release paper is easy to transfer to the adhesive layer is overcome, the prepared self-adhesive has higher adhesive force and very strong adhesive strength with the KT board, so that the foaming of the self-adhesive, caused by the volatilization of residual solvents in the self-adhesive and the erosion to the KT board, is effectively restrained.

Description

technical field [0001] The present invention relates to a preparation method of non-foaming adhesive for KT boards, in particular to a preparation method of rubber / acrylate graft copolymer pressure-sensitive adhesive and a method for reducing release through the release layer treatment of release paper Method for paper silicone transfer. Background technique [0002] As a form of mass media, print advertisements have been pervasive in every aspect of life. Among them, the carrier of print advertisements—adhesive, also called self-adhesive label printing materials, is a kind of advertising consumables used in the field of digital printing made of paper, plastic film, glue, and release paper. The front can be spray-painted, and the back has glue, which can be pasted on display boards, walls, and KT boards. [0003] At present, the back glue used for advertising consumables will foam after being pasted on the KT board for a period of time, which will affect the visual effect ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/04B32B38/18C09J151/04C08F253/00C08F279/02C08F255/10C08F220/18C08F218/08C08F220/44C08F220/56C08F212/08C08F220/14C08F220/06C08F220/28C08F220/34C08F222/06
Inventor 葛允林张曙明王炎杨其文陈伟
Owner 滁州云林数码影像耗材有限公司
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