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A kind of label paper adhesive for glass bottled food packaging

A food packaging and adhesive technology, applied in the directions of adhesives, adhesive types, cellulose adhesives, etc., can solve the problems of difficult peeling and difficult removal of adhesives, and achieve the effect of high safety and favorable recycling and reuse.

Active Publication Date: 2018-11-09
江苏金旺新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the recycling process, the label paper needs to be peeled off, but it is basically difficult to completely peel off, and a large amount of adhesive will remain on the glass bottle, and it is difficult to remove the adhesive with ordinary cleaning methods and cleaning agents

Method used

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  • A kind of label paper adhesive for glass bottled food packaging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Add 3g of stearic acid and 0.5g of polyethylene oxide to 20g of hydroxyethyl cellulose under grinding, and microwave at a microwave frequency of 2450MHz and an output power of 700W for 5min, and then add 0.5g of nano-titanium dioxide after standing for 5min , after mixing evenly, continue the microwave treatment for 5 minutes, after standing still for 5 minutes, microwave treatment for 5 minutes again, the obtained mixture is naturally cooled to room temperature under grinding, and the modified hydroxyethyl cellulose is obtained;

[0020] (2) Add 0.2 g of trimethylolpropane triglycidyl ether and 0.1 g of polydimethyldiallyl ammonium chloride to 2 g of pregelatinized wheat starch, and grind at a heating rate of 5 °C / min Heat up to 110-120°C and grind for 30 minutes, then naturally cool to room temperature to obtain modified starch;

[0021] (3) Add 10g of hydrogenated ricinoleic acid / polyglutamic acid, 0.5g of polyacrylamide and 0.2g of cetyl alcohol to the modified ...

Embodiment 2

[0025] (1) Add 5 g of stearic acid and 1 g of polyoxyethylene to 25 g of hydroxyethyl cellulose under grinding, and microwave at a microwave frequency of 2450 MHz and an output power of 700 W for 5 min, then add 0.5 g of nano-titanium dioxide after standing for 5 min, After mixing evenly, continue microwave treatment for 5 minutes, let stand for 5 minutes, then microwave treatment for 5 minutes again, and the obtained mixture is naturally cooled to room temperature under grinding to obtain modified hydroxyethyl cellulose;

[0026] (2) Add 0.3 g of trimethylolpropane triglycidyl ether and 0.05 g of polydimethyldiallyl ammonium chloride to 2 g of pregelatinized wheat starch, and grind at a heating rate of 5 °C / min Heat up to 110-120°C and grind for 30 minutes, then naturally cool to room temperature to obtain modified starch;

[0027] (3) Add 10g of hydrogenated ricinoleic acid / polyglutamic acid, 1g of polyacrylamide and 0.3g of cetyl alcohol to the modified hydroxyethyl cellulo...

Embodiment 3

[0051] The same amount of adhesives prepared in Example 1, Example 2, Comparative Example 1, Comparative Example 2, Comparative Example 3, and Comparative Example 4 were respectively used for pasting the same batch of glass bottle label paper with the same specification, and the adhesion after 8 hours was measured. After 6 months, soak the glass bottle in water for 30 minutes, then peel off the label paper, and measure the residual amount of adhesive. The results are shown in Table 1.

[0052] Table 1 The performance of the adhesive made by the embodiments of the present invention and comparative examples

[0053]

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Abstract

The invention discloses an adhesive of label paper for packaging of glass bottled food, and relates to the technical field of adhesives. The adhesive is prepared from the following raw materials in parts by weight: 15 to 25 parts of hydroxyethyl cellulose, 5 to 10 parts of hydrogenated ricinoleic acid / polyglutamic acid, 3 to 5 parts of stearic acid, 0.5 to 2 parts of pregelatinized wheat starch, 0.5 to 2 parts of polyoxyethylene, 0.5 to 2 parts of nano titanium dioxide, 0.1 to 1 part of polyacrylamide, 0.1 to 1 part of trimethylolpropane triglycidyl ether, 0.05 to 0.5 part of poly dimethyl diallyl ammonium chloride, 0.05 to 0.5 part of cetyl alcohol and 200 to 250 parts of deionized water. The adhesion strength of the adhesive disclosed by the invention is up to 4 MPa after the label paper is adhered to a glass bottle for 8 hours, and the label paper can be completely removed at a single time by immersing the glass bottle in water for 30 minutes; meanwhile, the residual amount of the adhesive on the glass bottle is just 0.05 percent, and the adhesive can be completely removed after being flushed by high-pressure water.

Description

Technical field: [0001] The invention relates to the technical field of adhesives, in particular to a label paper adhesive for packaging food in glass bottles. Background technique: [0002] Packaging food in glass bottles is one of the common ways of food packaging, including seasonings, cans, honey, etc. Trademark paper is used to paste on the product to mark the product information. Glass bottled food usually wraps the label paper on the glass bottle. The requirements for the adhesive used are often focused on the need for strong adhesion and water resistance, while ignoring its peelability after use. [0003] In order to realize the rational reuse of resources, the recycling and reuse of glass bottles is being carried out in an orderly manner in recent years. During the recycling process, the label paper needs to be peeled off, but it is basically difficult to completely peel off, and a large amount of adhesive will remain on the glass bottle, and it is difficult to re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J101/28C09J11/04C09J11/06C09J11/08
CPCC08K2003/2241C08K2201/011C08L2205/035C09J11/04C09J11/06C09J11/08C09J101/284C08L3/04C08K13/02C08K5/09C08K3/22
Inventor 许炳初
Owner 江苏金旺新材料科技有限公司