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Hot-melt adhesive for cover binding

A hot-melt adhesive and cover technology, which is applied in the field of daily chemicals, can solve the problems that hot-melt adhesives are hard to reach, and achieve the effect of fast curing speed and high bonding strength

Inactive Publication Date: 2012-11-28
WUJIANG QINGYI TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Currently commonly used hot melt adhesives are difficult to meet the above requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A case binding hot melt adhesive, in parts by weight, consists of the following substances:

[0019] Ethylene-vinyl acetate copolymer: 30, chloroprene resin: 10,

[0020] Hydrogenated Rosin: 10, White Oil: 10, Paraffin: 10,

[0021] Barium sulfate: 3, light calcium carbonate: 5,2,6-di-tert-butyl-p-cresol: 0.1.

[0022] In the above-mentioned technical scheme, the preparation process of the described case binding hot melt adhesive is as follows:

[0023] (1) Add paraffin to the reaction kettle first, raise the temperature to 100-120°C, make it completely dissolved, then add other materials, heat up to 160-180°C under full stirring, and react for 2-5 hours;

[0024] (2) After the reaction is over, discharge the material while it is hot, and put it through the die opening on the cooling steel belt to cool and form.

Embodiment 2

[0026] A case binding hot melt adhesive, in parts by weight, consists of the following substances:

[0027] Ethylene-vinyl acetate copolymer: 50, chloroprene resin: 30,

[0028] Hydrogenated rosin: 20, white oil: 20, paraffin: 20,

[0029] Barium sulfate: 8, light calcium carbonate: 8, 2,6-di-tert-butyl-p-cresol: 0.3.

[0030] The preparation method is the same as in Example 1.

Embodiment 3

[0032] A case binding hot melt adhesive, in parts by weight, consists of the following substances:

[0033] Ethylene-vinyl acetate copolymer: 40, chloroprene resin: 20,

[0034] Hydrogenated rosin: 16, white oil: 16, paraffin: 16,

[0035] Barium sulfate: 6, light calcium carbonate: 6, 2,6-di-tert-butyl-p-cresol: 0.2.

[0036] The preparation method is the same as in Example 1.

[0037] Product application: put the hot-melt adhesive into the glue tank and heat it to 140-160°C to make it into a molten state, and then apply the hot-melt adhesive to the book with any glue coating method to make the glue penetrate into the book. To each page of the book, the hot melt adhesive is quickly solidified by forced cooling.

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PUM

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Abstract

The invention discloses a hot-melt adhesive for cover binding, which is prepared from 30-50 parts of ethylene-vinyl acetate copolymer, 10-30 parts of chlorobutylene resin, 10-20 parts of hydrogenated rosin, 10-20 parts of white oil, 10-20 parts of paraffin, 3-8 parts of barium sulfate, 5-8 parts of light calcium carbonate and 0.1-0.3 part of 2,6-di-tert-butyl-para-cresol. The adhesive film formed after being coated can adapt to the bending shape of the book back, can be kept round forever, has high adhesive strength and high curing speed, and can be used for binding continuously produced round hard covers.

Description

technical field [0001] The invention belongs to the technical field of daily chemicals, and more specifically relates to a case binding hot melt adhesive. Background technique [0002] When binding a case, hot-melt glue is usually used, and the quality of the hot-melt glue has a great influence on the binding of the book cover. [0003] It is usually required that the hot melt adhesive has good thermal stability and strong anti-aging ability, otherwise the color of the glue will become muddy after aging, which will affect the appearance of the book and also affect the bonding strength of the book. After the glue for books and periodicals has the above characteristics, it has excellent strength, toughness and anti-aging performance, so that the quality of book binding can be guaranteed. [0004] Currently commonly used hot melt adhesives are difficult to meet the above requirements. Contents of the invention [0005] The purpose of the present invention is to overcome the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/08C09J11/04C09J11/06C09J11/08
Inventor 钱雪根
Owner WUJIANG QINGYI TEXTILE
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