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Quick-setting water-proof paper tag adhesive and method for preparing same

A label glue, high-speed technology, applied in the field of high-speed water-resistant paper label glue and its preparation, can solve the problems of inability to meet use requirements, limited wide application, poor ice water resistance, etc., and achieves low production cost, simple process, and ice resistance. Excellent water performance

Inactive Publication Date: 2009-12-09
上海天之冠可再生能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The original starch glue and PVA chemical glue used for labeling can no longer meet the requirements of use due to factors such as slow curing speed and poor ice water resistance; while casein glue (casein glue) has excellent performance, but it needs to be prepared. The main raw material casein is made from milk by skimming and weak acid precipitation. The source of raw material is difficult and expensive, which limits its wide application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Add 3 g of phosphate starch into the reaction kettle, add 50 mL of water, keep stirring in a water bath at 100 °C for 150 min, cool down to 5 °C, add 21.5 g of urea, 2.4 g of zinc sulfate, 18 g of gluten, and 1.9 g of sodium carbonate, and stir to form a reaction kettle. To the homogeneous slurry, add 0.2 mL of n-butanol and 0.2 g of sodium benzoate, and stir evenly to obtain the product. Product appearance: yellow viscous liquid, pH: 8.5, viscosity (30±0.5°C): 53000mPa·s, non-volatile content 46%, curing speed: fiber tearing within 30s, resistance to 4°C ice water persistence h≥72 .

Embodiment 2

[0019] Add 9g of acid-thinned starch into the reaction kettle, add 61mL of water, keep stirring in a water bath at 62°C for 20min, cool down to 55°C, add 14g of urea, 0.1g of zinc chloride, 20g of gluten, and 0.1g of sodium carbonate, and stir to form a reaction kettle. To the homogeneous slurry, add 0.15 mL of n-butanol and 0.1 g of sodium benzoate, and stir evenly to obtain the product. Product appearance: yellow viscous liquid, pH: 6.2, viscosity (30±0.5°C): 47000mPa·s, non-volatile content 40%, curing speed: fiber tearing within 30s, resistance to 4°C ice water persistence h≥72 .

Embodiment 3

[0021] Add 6g of phosphate starch into the reaction kettle, add 57mL of water, keep stirring in an 80°C water bath for 60min, cool down to 30°C, add 18g of urea, 1.2g of zinc sulfate, 18g of gluten, and 0.4g of sodium carbonate, and stir to obtain a uniform The pulp is the product. Product appearance: yellow viscous liquid, pH: 7.5, viscosity (30±0.5°C): 23000mPa·s, non-volatile content 41%, curing speed: fiber tearing within 30s, resistance to 4°C ice water persistence h≥72 .

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PUM

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Abstract

The invention discloses a high-speed water-resistant paper label glue and a preparation method thereof. According to the percentage by weight, take 0-10% of modified starch, add 50-62% of water, stir evenly, keep stirring in a water bath at 60-100°C for 15-150min, cool down to 5-55°C, add 14-22% of urea , 0-2.5% cross-linking agent, 16-22% wheat gluten and 0-2% sodium carbonate, stirred to form a homogeneous slurry to obtain the label glue. The invention solves the problems of slow curing speed, poor ice water resistance, difficult source of main raw materials and high price of the existing label glue.

Description

technical field [0001] The invention relates to a label glue and a preparation method thereof, in particular to a high-speed water-resistant paper label glue and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of the beer industry, the speed of labeling machines has increased from thousands of bottles per hour to tens of thousands of bottles per hour, and many domestic beer production lines have increased from the original 20,000 bottles per hour to 30,000-40,000 bottles. / hour, foreign production lines have reached a production speed of 60,000 bottles / hour. The original starch glue and PVA chemical glue used for labeling can no longer meet the requirements of use due to factors such as slow curing speed and poor ice water resistance; while casein glue (casein glue) has excellent performance, but it needs to be prepared. The main raw material of casein is the skimmed milk and weak acid precipitation. The source of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J189/00C09J103/04B65C3/00
Inventor 王良东杜风光史吉平董青山陈伟红孙沛勇闫德冉潘伟李桂芳
Owner 上海天之冠可再生能源有限公司
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