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Polyvinyl butyral (PVB) adhesive and preparation process thereof

An adhesive, polyvinyl butyral technology, applied in the field of adhesives, can solve the problems of poor adhesive force, dull coating, easy discoloration, etc., and achieve the effect of low cost, easy operation and not easy to change color

Inactive Publication Date: 2011-05-18
张维民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems existing in the above-mentioned prior art, and through a large amount of research and continuous exploration, a kind of PVB adhesive is provided, which solves the problem of poor adhesion of PVB-6# adhesive in the prior art, dull coating, Easy to discoloration problem, and the cost is lower

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] It is prepared from the following raw materials in parts by weight: polyvinyl butyral: 95% ethanol: cyclopropane: rosin: aldol: stearyl alcohol: dibutyl phthalate: talcum powder = 226 :135:46:5:4:3:2:22.

[0020] The preparation process of the present invention is as follows:

[0021] Stirring: First add ethanol solution into the reaction kettle according to the above weight ratio, slowly add polyvinyl butyral at room temperature, stir for 70 minutes, add cyclopropane and stir evenly;

[0022] Dissolution: raise the temperature of the above solution to 50°C, and after slowly adding polyvinyl butyral at room temperature to completely dissolve, lower the temperature in the kettle to room temperature;

[0023] Miscibility: Add crushed rosin and talcum powder according to the above weight ratio, and after stirring evenly, add aldol resin, stearyl alcohol and dibutyl phthalate for miscibility;

[0024] Filtration: Filter the above miscible solution to obtain the finished p...

Embodiment 2

[0026] It is prepared from the following raw materials in parts by weight: polyvinyl butyral: ethanol: cyclopropane: rosin: aldol: stearyl alcohol: dibutyl phthalate: talcum powder = 180:90 :30:4:3:2:1:10.

[0027] Its preparation process is with embodiment 1.

Embodiment 3

[0029] It is prepared from the following raw materials in parts by weight: polyvinyl butyral: ethanol: cyclopropane: rosin: aldol resin: stearyl alcohol: dibutyl phthalate: talc = 320:210 :0:9:8:6:5:45.

[0030] Its preparation process is with embodiment 1.

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PUM

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Abstract

The invention relates to a polyvinyl butyral (PVB) adhesive and a preparation process thereof. The PVB adhesive and the preparation process are mainly used in the production processes of tipping paper and aluminium-foil paper for cigarettes and outer wrapping paper for cigarette cases. The PVB adhesive is prepared from the following raw materials in parts by weight: PVB, ethanol, cyclopropane, rosin, alcohol soluble phenolic resins, octadecanol, dibutyl phthalate and talc. The invention has the following advantages and beneficial effects: the PVB adhesive has strong adhesion, can not only brighten the films but also further brighten the films during friction, is not easy to change color and has low cost; and the preparation process is simple and convenient to operate and easy to implement.

Description

technical field [0001] The invention relates to an adhesive, in particular to a PVB adhesive and a preparation process thereof, which are mainly used in the production of cigarette tip paper, aluminum foil paper and cigarette case outer wrapping paper. Background technique [0002] At present, with the continuous development of cigarette technology and the continuous improvement of people's living standards, higher requirements are put forward for cigarette materials. For example, tipping paper should be bright and not faded, and color printing or even three-dimensional printing on tipping paper should be easier; aluminum foil paper The light does not take off the powder; the decorative outer packaging box is bright and shining. To meet the above requirements, PVB-6# glue must have strong adhesion, bright coating film and not easy to change color. And PVB-6# glue in the prior art can not satisfy above-mentioned characteristic far away. Contents of the invention [0003] ...

Claims

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Application Information

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IPC IPC(8): C09J129/14
Inventor 张维民
Owner 张维民
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