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Water-tolerant type starch-based label adhesive

A starch-based, label adhesive technology, used in adhesives, non-polymer adhesive additives, instruments, etc., can solve the problems of poor water resistance and mechanical properties of label adhesives, and achieve improved mechanical properties, water resistance and flow. The effect of performance improvement

Inactive Publication Date: 2018-12-21
FOSHAN WANYANG BIOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is to provide a water-resistant starch-based label glue for the problems of poor water resistance and mechanical properties of traditional label glue

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0028] Put cornstarch and water in the No. 1 beaker at a mass ratio of 1:20, stir and mix for 60 minutes at a speed of 500 r / min, and then drop 30% of the mass fraction of Adjust the pH to 2.4 with hydrochloric acid, then add 0.08 times the mass of cornstarch to the No. 1 beaker and add a potassium permanganate solution with a mass fraction of 10%. Stir and mix for 60 minutes at a speed of 500r / min, and then add to No. 1 beaker 0.2 times the mass fraction of cornstarch and 20% sodium hydroxide solution, under the condition of rotating speed of 500r / min, stir and mix for 60min to obtain the pretreated starch liquid; put the bamboo fiber in a pulverizer to pulverize, and pass through a 120-mesh sieve , to get bamboo fiber powder, in parts by weight, 30 parts of bamboo fiber powder, 5 parts of biogas slurry, 2 parts of glycerol, 2 parts of glucose solution with a mass fraction of 0.5%, 40 parts of water are placed in the fermenter, and the Under the conditions of 200r / min and 35°...

example 2

[0030]Put cornstarch and water in the No. 1 beaker at a mass ratio of 1:20, stir and mix for 60 minutes at a speed of 500 r / min, and then drop 30% of the mass fraction of Adjust the pH to 2.4 with hydrochloric acid, then add 0.08 times the mass of cornstarch to the No. 1 beaker and add a potassium permanganate solution with a mass fraction of 10%. Stir and mix for 60 minutes at a speed of 500r / min, and then add to No. 1 beaker Sodium hydroxide solution with a mass fraction of 0.2 times the mass of corn starch and 20% was stirred and mixed for 60 minutes at a rotation speed of 500r / min to obtain a pretreated starch solution; calcium-based montmorillonite and water were mixed in a mass ratio of 1:20 Put it in the No. 2 beaker, put the No. 2 beaker in a water bath, heat and stir for 50 minutes at a temperature of 60°C and a rotation speed of 600r / min, and then add calcium-based montmorillonite with a mass of 0.3 times of sodium carbonate, at a temperature of 55°C and a rotation s...

example 3

[0032] Put cornstarch and water in the No. 1 beaker at a mass ratio of 1:20, stir and mix for 60 minutes at a speed of 500 r / min, and then drop 30% of the mass fraction of Adjust the pH to 2.4 with hydrochloric acid, then add 0.08 times the mass of cornstarch to the No. 1 beaker and add a potassium permanganate solution with a mass fraction of 10%. Stir and mix for 60 minutes at a speed of 500r / min, and then add to No. 1 beaker 0.2 times the mass fraction of cornstarch and 20% sodium hydroxide solution, under the condition of rotating speed of 500r / min, stir and mix for 60min to obtain the pretreated starch liquid; put the bamboo fiber in a pulverizer to pulverize, and pass through a 120-mesh sieve , to get bamboo fiber powder, in parts by weight, 30 parts of bamboo fiber powder, 5 parts of biogas slurry, 2 parts of glycerol, 2 parts of glucose solution with a mass fraction of 0.5%, 40 parts of water are placed in the fermenter, and the Under the conditions of 200r / min and 35°...

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Abstract

The invention discloses a water-tolerant type starch-based label adhesive and belongs to the technical field of adhesive preparation. The water-tolerant type starch-based label adhesive is prepared bythe following steps of crushing bamboo fibers, sieving the crushed bamboo fibers with a 120-mesh sieve to obtain bamboo fiber powder, performing mixing and fermentation on the components in parts byweight: 20-30 parts of the bamboo fiber powder, 3-5 parts of biogas slurry, 1-2 parts of glycerin, 1-2 parts of glucose solution and 3-40 parts of water, performing filtering, liquid nitrogen freezingand ball milling, sieving a product with a 240-mesh sieve, performing drying to obtain a modified additive, and stirring and mixing a pretreatment starch liquid, the modified additive, butyl acrylate, vinyl acetate, acrylic acid, modified montmorillonite, chitosan liquid, a crosslinking agent and rear earth to obtain the water-tolerant type starch-based label adhesive. The water-tolerant type starch-based label adhesive provided by the invention has excellent water tolerance and mechanical properties.

Description

technical field [0001] The invention discloses a water-resistant starch-based label glue, which belongs to the technical field of binder preparation. Background technique [0002] Adhesive is a kind of organic or inorganic, natural or synthetic substance that can combine two or more homogeneous or heterogeneous parts or materials into a whole through the surface, and has sufficient strength after curing. agent. Can be divided into organic adhesives and inorganic adhesives. Trademark adhesive, known as label glue, is widely used in the outer packaging process of cartons, food and other products. Label adhesives are generally required to have the characteristics of high bonding strength, good fluidity, short curing time, no label drop during low temperature storage, and no deterioration in humid environments. [0003] The general requirements for label adhesives are good fluidity, strong initial adhesion, fast drying speed, and stable performance. The types of label glue c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/04C09J11/06C09J11/08G09F3/02
CPCC09J4/06C09J11/04C09J11/06C09J11/08G09F3/02G09F2003/023
Inventor 刘茂龙兰梅菊朱东东
Owner FOSHAN WANYANG BIOLOGICAL TECH CO LTD
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