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High-waterproof nano modified water-based environment-friendly labeled binder easy in alkaline cleaning and preparation method thereof

A nano-modification and adhesive technology, applied in adhesive types, protein adhesives, starch adhesives, etc., can solve the problem of casein adhesive viscosity increase or decrease, high unit consumption, water-based synthetic paste The problem of shear thinning of the standard adhesive is eliminated, and the effect of excellent water resistance and alkali cleaning performance, stable physical and chemical properties, and excellent shear resistance is achieved.

Active Publication Date: 2012-08-01
GUANGZHOU JUNHE INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing labeling adhesives are mainly traditional casein labeling adhesives and water-based synthetic labeling adhesives, both of which have deficiencies such as: 1. Traditional casein labeling adhesives Because casein is soluble in normal temperature water, its water resistance is poor, which cannot meet the normal temperature water resistance of beer labels; casein adhesives are sensitive to temperature, and when the temperature decreases or increases, the viscosity of casein adhesives will increase or decrease rapidly. Affect the stability of the product in use; casein adhesive has the disadvantage of high-speed shear thinning. When used in high-speed machines, the product has poor stability and is easy to splash out from the sizing roller and cause machine pollution and a lot of loss. consumption is also very high
2. Water-based synthetic labeling adhesive uses a large amount of polymer water-resistant resin as raw material, which solves the water-resistant problem of the label, reduces a certain unit consumption and product sensitivity to temperature, but because the polymer resin is difficult to dissolve in Water, the glue residue cannot be completely cleaned when the recovery bottle is eluted online, and it cannot meet the requirements of food grade
In addition, polymer resin is difficult to degrade, which greatly increases the cost of sewage treatment
Also, water-based synthetic labeling adhesives also suffer from shear thinning when used on high-speed machines

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A preparation method of a nano-modified water-based environmentally friendly labeling adhesive with strong water resistance and easy alkali washing, comprising the following steps:

[0053] Add 10% casein (Lanzhou Longruan), 4% isolated soybean protein (Anyang Mantianxue), 6% starch (Foshan Gaofeng) and 0.2% defoamer (Eastman, defoamer 691) Add 45% deionized water, heat to 90°C while stirring, keep the temperature for 1h; add 3.2% ammonia water, stir for 40min, then add 2% nano-zinc oxide and 3% nano-zirconia, stir at constant temperature for 2h; cool down To 75°C, add 26% water-based tackifying resin (Neupace, DA1216), stir at 75°C for 1 hour, add 0.2% rheological agent (DSM, PX104), 0.2% fungicide (Rohm and Haas , 342) and 0.2% defoamer (Eastman, defoamer 691), stirring for 30 minutes, that is, a nano-modified water-based environmentally friendly labeling adhesive with strong water resistance and easy alkali cleaning. The stated percentage is the percentage of the to...

Embodiment 2

[0056] A preparation method of a nano-modified water-based environmentally friendly labeling adhesive with strong water resistance and easy alkali washing, comprising the following steps:

[0057] Combine 18% casein (Hualing, fresh milk grade), 2% isolated soybean protein (Anyang Mantianxue), 2% starch (Foshan Gaofeng) and 0.2% defoamer (Eastman, defoamer Add 691) to 48% deionized water, heat to 90°C while stirring, and keep the temperature for 2 hours; add 2.4% ammonia water, stir for 40 minutes, then add 3% nano-zinc oxide and 3% nano-zirconia, and stir at constant temperature 3h; cool down to 75°C, add 20.8% water-based tackifying resin (New Pace, DA1216), stir at 75°C for 1h, add 0.2% rheological agent (DSM, PX104), 0.2% fungicide (Ro Menhas, 342) and 0.2% defoamer (Eastman, defoamer 691), stirred for 50 minutes, that is, a nano-modified water-based environmentally friendly labeling adhesive with strong water resistance and easy alkali washing. The stated percentage is th...

Embodiment 3

[0060] A preparation method of a nano-modified water-based environmentally friendly labeling adhesive with strong water resistance and easy alkali washing, comprising the following steps:

[0061] Add 5% casein (Lanzhou Longruan), 20% isolated soybean protein (Anyang Mantianxue), 4% starch (Foshan Gaofeng) and 0.2% defoamer (Eastman, defoamer 691) Add 40% deionized water, heat to 80°C while stirring, keep the temperature for 2 hours; add 2.8% ammonia water, stir for 1 hour, then add 4% nano-zinc oxide and 2% nano-zirconia, keep stirring for 2 hours; cool down To 75°C, add 21.4% water-based tackifying resin (Neupace, DA1216), stir at 75°C for 1 hour, add 0.2% rheological agent (DSM, PX104), 0.2% fungicide (Rohm and Haas , 342) and 0.2% defoamer (Eastman, defoamer 691), stirring for 30 minutes, that is, a nano-modified water-based environmentally friendly labeling adhesive with strong water resistance and easy alkali cleaning. The stated percentage is the percentage of the tota...

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PUM

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Abstract

The invention discloses a high-waterproof nano modified water-based environment-friendly labeled binder easy in alkaline cleaning and a preparation method and application thereof. The high-waterproof nano modified water-based environment-friendly labeled binder is prepared by 1-25% of casein, 2-20% of soy protein, 5-50% of water-based tackifying resin, 0.5-20% of amylum, 0.1-20% of nano zinc oxide, 0.1-20% of nano zirconium dioxide, 0.1-5% of ammonia water, 0.1-0.5% of bacteriacide, 0.1-0.5% of defoamer, 0.1-10% of rheological agent and 10-60% of water. The high-waterproof nano modified water-based environment-friendly labeled binder easy in alkaline cleaning is impurity-free, stable in physical and chemical property and high in initial binding force and has excellent comprehensive effectto labels made of different paper, viscosity thereof ranges from 40000cps to 100000cps, and the pH (potential of hydrogen) value ranges from 7.0 to 8.0. Furthermore, the high-waterproof nano modifiedwater-based environment-friendly labeled binder easy in alkaline cleaning has excellent waterproof performance, alkaline cleaning performance and shearing resistance and can be applicable to higher-speed machines.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a water-based environmentally friendly labeling adhesive, in particular to a nano-modified water-based environmentally friendly labeling adhesive that is strong in water resistance and easy to be washed by alkali and can be applied to high-speed machines and its preparation method and application. [0002] Background technique [0003] In recent years, with the development of the beer industry and food condiment industry, as well as the introduction and localization of high-speed labeling machines, new requirements have been put forward for adhesives used in label pasting: 1. The beer industry requires good labels It has strong water resistance, that is, the label cannot fall off during the water cooling period of the beer freezer and when the consumer consumes the batch of beer. This index is defined as the normal temperature water resistance of the adhesive, which generally re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/00C09J189/00C09J103/02C09J11/04G09F3/10
Inventor 黄应敏岑锦常钟飞燕
Owner GUANGZHOU JUNHE INDAL
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