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Adhesive for corrugated cardboard explosion-proof line and preparation method thereof

A corrugated cardboard and adhesive technology, applied in the field of corrugated cardboard explosion-proof adhesives and its preparation, can solve the problems of insignificant effect and insufficient toughness of cardboard

Active Publication Date: 2021-06-04
HUBEI HENGDA PACKING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the root cause of the cracking line is the insufficient toughness of the cardboard, the effect of the above solution is not obvious, and the cracking line problem still occurs

Method used

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  • Adhesive for corrugated cardboard explosion-proof line and preparation method thereof
  • Adhesive for corrugated cardboard explosion-proof line and preparation method thereof
  • Adhesive for corrugated cardboard explosion-proof line and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0017] The preparation method of the above-mentioned adhesive for corrugated cardboard explosion-proof line is specifically: first mix chitosan solution, corn starch solution, and toughening agent according to the required ratio to obtain the pre-preparation liquid, and then add catalase to the pre-preparation liquid Mix evenly, then adjust the pH value of the system to 8-9 with hydrochloric acid, and raise the temperature to 70-80°C to react to obtain the adhesive.

[0018] Principle of the present invention is described as follows:

[0019] The present invention uses catechol and diethylenetriamine to polymerize under the catalysis of catalase to form three kinds of long-chain polymers containing multiple reactive active sites, and these long-chain polymers are combined with chitosan and cellulose of cornstarch And other organic matrix, the fiber molecules of corrugated base paper form intermolecular and intramolecular chemical bonds and hydrogen bonds, so that a high-streng...

Embodiment 1

[0044] An adhesive for corrugated cardboard explosion-proof wire, its raw material composition and weight ratio are: pre-prepared liquid 80, catalase 0.1, the raw material composition and weight ratio of the described pre-prepared liquid are: chitosan solution 40, corn Starch solution 80, toughening agent 10, the raw material composition and weight ratio of described chitosan solution are: chitosan 8, the acetic acid solution that volume percent content is 1% according to 80, the raw material composition of described cornstarch solution and its weight ratio The weight ratio is: corn starch 15, distilled water 80, polyvinyl alcohol 4, borax 1, defoamer emulsified silicone oil 0.5, isothiazolone 0.5, calcium sulfate whisker 3, the raw material composition and weight of the toughening agent The ratio is: Tris 10, Distilled water 100, Catechol 5, Diethylene triamine 5.

[0045] The preparation method of the adhesive for the above-mentioned corrugated cardboard explosion-proof line...

Embodiment 2

[0051] The difference with Example 1 is:

[0052] The adhesive for corrugated cardboard explosion-proof line, its raw material composition and weight ratio are: pre-prepared liquid 90, catalase 0.2, the raw material composition and weight ratio of the described pre-prepared liquid are: chitosan solution 50, corn Starch solution 90, toughening agent 17, the raw material composition and weight ratio of described chitosan solution are: chitosan 9, the acetic acid solution that volume percent content is 1% according to 90, the raw material composition of described cornstarch solution and its weight ratio The weight ratio is: corn starch 18, distilled water 90, polyvinyl alcohol 5, borax 1.5, defoamer 0.7, isothiazolone 0.7, calcium sulfate whisker 4, the raw material composition and weight ratio of the toughening agent are : Trishydroxymethylaminomethane 12, distilled water 110, catechol 7, diethylenetriamine 7.

[0053] In the step of preparing the adhesive, the pH of the system...

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Abstract

An adhesive for corrugated cardboard explosion-proof line, its raw material composition and weight ratio are: pre-prepared solution 80-100, catalase 0.1-0.3, the raw material composition and weight ratio of pre-prepared solution are: chitosan solution 40 -60, corn starch solution 80-100, toughening agent 10-20, the raw material composition and weight ratio of toughening agent include: catechol 5-10, diethylenetriamine 5-10, during preparation, first Mix chitosan solution, cornstarch solution, and toughening agent in the desired ratio to prepare a premix, then add catalase to the premix and mix well, then adjust the pH of the system to 8–9 with hydrochloric acid , and heat up to 70–80°C for reaction. This design significantly improves the bonding strength of the adhesive, the toughness and folding resistance of the cardboard.

Description

technical field [0001] The invention belongs to the technical field of corrugated cardboard production, and in particular relates to an adhesive for corrugated cardboard explosion-proof lines and a preparation method thereof. Background technique [0002] Cardboard cracking is the cracking of the surface layer, inner layer or surface layer and inner layer or even corrugated paper along the pressing line when corrugated cardboard is cut and pressed, folded, boxed and stacked. The cracked line seriously affects the quality of cartons. Appearance is one of the major quality defects of cartons. Especially in the dry season, the problem of broken wires is more frequent, which has troubled many carton companies. It not only seriously affects the quality of cartons and on-time delivery, but also causes a sharp increase in the scrap rate, causing companies to suffer economic losses. The main reasons for cardboard cracking are the quality of base paper used for corrugated cardboard,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J103/02C09J105/08C09J11/04C09J11/06C09J11/08C08B37/08C08B31/00
CPCC08B31/006C08B37/003C08K2003/387C08L2205/03C08L2205/06C08L2312/00C09J11/04C09J11/06C09J11/08C09J103/02C08L5/08C08L29/04C08K13/04C08K7/08C08K3/38C08K5/47
Inventor 陈智敏
Owner HUBEI HENGDA PACKING CO LTD
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