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Modified paper-plastic composite adhesive and preparation method thereof

A technology of composite adhesive and modified paper, applied in the field of adhesive materials, can solve the problems of plastic film opening and foaming, poor bonding effect, poor environmental protection, etc. and the effect of temperature resistance

Active Publication Date: 2021-06-22
浙江金仕文化用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects that the chemical paper-plastic composite glue in the prior art has poor environmental protection and high cost, and at the same time, the bonding effect between animal glue and plastic film is poor, resulting in the plastic film on the surface of the paper-plastic folder. The unfavorable phenomenon of glue opening and foaming is prone to occur, so the invention provides a modified paper-plastic composite glue and its preparation method

Method used

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  • Modified paper-plastic composite adhesive and preparation method thereof

Examples

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Embodiment 1

[0025] A modified paper-plastic composite glue, comprising 40 parts by weight of hide glue, 15 parts of maltose, 10 parts of superfine talcum powder with a particle size of 0.5-1 μm, 0.1 part of transglutaminase, 0.1 part of collagenase, 30 parts of water.

[0026] A preparation method of modified paper-plastic composite glue, comprising the following steps:

[0027] (S.1) Put hide glue and maltose in water, heat up to 50°C to dissolve, then add superfine talc powder to form a stable colloid;

[0028] (S.2) Adjust the temperature of the colloid to 35°C, add transglutaminase to the colloid, and stir the enzymolysis for 30 minutes to obtain a primary enzymatic hydrolyzate;

[0029] (S.3) Add collagenase to the first enzymatic hydrolyzate, enzymatically hydrolyze at 35°C for 15 minutes, then raise the temperature to 70°C, keep for 10 minutes to inactivate the enzyme, and naturally cool to room temperature to obtain the modified paper-plastic composite glue .

Embodiment 2

[0031] A modified paper-plastic composite glue, comprising 60 parts by weight of bone glue, 30 parts of maltose, 25 parts of superfine talcum powder with a particle size of 0.5-2 μm, 0.5 part of glutamine transaminase, 0.5 part of collagenase, water 40 parts and 5 parts boric acid.

[0032] A preparation method of modified paper-plastic composite glue, comprising the following steps:

[0033] (S.1) Put bone glue and maltose in water, heat up to 65°C to dissolve, then add ultra-fine talc powder to form a stable colloid;

[0034] (S.2) Adjust the temperature of the colloid to 42°C, add transglutaminase to the colloid, and stir for 45 minutes for enzymolysis to obtain a primary enzymatic hydrolyzate;

[0035] (S.3) Add collagenase to the first enzymatic hydrolyzate, 40°C, enzymolysis for 30 minutes, add boric acid, raise the temperature to 75°C, keep for 30 minutes to inactivate the enzyme, naturally cool to room temperature to obtain modified paper Plastic compound.

Embodiment 3

[0037] A modified paper-plastic composite glue, comprising 50 parts by weight of gelatin, 20 parts of maltose, 15 parts of superfine talcum powder with a particle diameter of 5-10 μm, 0.3 parts of glutamine transaminase, 0.3 parts of collagenase, water 35 parts and 3 parts of trimethyl borate.

[0038] A preparation method of modified paper-plastic composite glue, comprising the following steps:

[0039] (S.1) Put gelatin and maltose in water, heat up to 60°C to dissolve, then add ultra-fine talc powder to form a stable colloid;

[0040] (S.2) Adjust the temperature of the colloid to 38°C, add transglutaminase to the colloid, and stir for 40 minutes for enzymolysis to obtain a primary enzymatic hydrolyzate;

[0041] (S.3) Add collagenase to the first enzymatic hydrolyzate, hydrolyze at 40°C for 20 minutes, add trimethyl borate, raise the temperature to 72°C, keep for 20 minutes to inactivate the enzyme, and naturally cool to room temperature to obtain Modified paper-plastic ...

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Abstract

The invention relates to the field of binder materials, in particular to a modified paper-plastic composite adhesive and a preparation method thereof. The modified paper-plastic composite adhesive comprises the following components in parts by weight: 40-60 parts of animal glue, 15-30 parts of maltose, 10-25 parts of superfine talcum powder, 0.1-0.5 part of glutamine transaminase, 0.1-0.5 part of collagenase, 30-40 parts of water and 0-5 parts of auxiliaries. According to the invention, the modified paper-plastic composite adhesive overcomes the defects of poor environmental protection property and high cost of chemical paper-plastic composite adhesive and the undesirable phenomena of glue failure and foaming of a plastic film on the surface of a paper-plastic folder caused by poor bonding effect of animal glue and the plastic film in the prior art; the crosslinking density in the adhesive is effectively improved, so that the viscosity of the animal glue can be greatly improved, and the modified animal glue cannot become liquid and lose the viscosity after being heated.

Description

technical field [0001] The invention relates to the field of adhesive materials, in particular to a modified paper-plastic composite glue and a preparation method thereof. Background technique [0002] Paper-plastic composite packaging material is a kind of paper-based structural material, which is combined with another or more than one film material through one or more composite processes to form a composite material with certain functions. Usually, the film is made of BOPP, PET, CPP, PE, etc. are used as base materials, and refined composite special paper is used for paper. Paper-plastic composite material has the characteristics of high strength, good water resistance, and beautiful appearance. It is one of the most popular packaging materials at present. It is widely used in food, daily chemical, sanitary products and other industries. being widely used. [0003] In the prior art, the paper-plastic composite materials used for folders usually need to pursue the charact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J189/00C09J11/04C09J11/06C08H1/00
CPCC09J189/00C09J11/04C09J11/06C08H1/00C08K2003/387C08K3/34C08K5/1545C08K13/02C08K3/38C08K5/55
Inventor 耿小虎
Owner 浙江金仕文化用品有限公司
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