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Water-based paper-plastic laminating adhesive and preparation method thereof

A technology of laminating adhesive and paper plastic, applied in the direction of monocarboxylate copolymer adhesive, adhesive type, etc., can solve the problems of easy delamination, easy occurrence of "snowflakes, poor stability, etc."

Active Publication Date: 2019-09-10
BLUE OCEAN & BLACK STONE TECH CO LTD FUJIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are some defects in the use of the emulsion, mainly manifested in insufficient bonding strength at low temperature, easy delamination, poor stability; insufficient covering power for printed matter after powder spraying treatment, prone to "snowflake" phenomenon

Method used

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  • Water-based paper-plastic laminating adhesive and preparation method thereof
  • Water-based paper-plastic laminating adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The water-based paper-plastic laminating adhesive in this example is prepared by the seed emulsion polymerization process, and the main raw materials include deionized water, monomers, compound emulsifiers, initiators, buffers, pH regulators, protective colloids and water-based additives.

[0049] Composition ratio (weight): 350 parts of deionized water, 350 parts of vinyl acetate, 15 parts of methyl methacrylate, 25 parts of acrylonitrile, 3 parts of methyl acrylate, 25 parts of butyl acrylate, 20 parts of isooctyl acrylate, 0.5 parts, 2 parts of hydroxypropyl acrylate, 2.5 parts of N-methylol acrylamide, 3 parts of nonylphenol polyoxyethylene ether, 5 parts of sodium dodecylbenzenesulfonate, 0.3 parts of DNS-86 (Qingyuan Chemical Industry) , 0.8 part of buffering agent sodium bicarbonate, 5 parts of protective glue PVA1788 (Taiwan Changchun Chemical Industry), 0.6 part of defoamer, and 0.5 part of bactericide.

[0050] Preparation of pre-emulsion: Put 30-60wt% deioniz...

Embodiment 2

[0055] In this embodiment, the water-based paper-plastic laminating glue is prepared by seed emulsion polymerization process, specifically,

[0056] Composition ratio (weight): 350 parts of deionized water, 340 parts of vinyl acetate, 25 parts of methyl methacrylate, 20 parts of acrylonitrile, 10 parts of butyl acrylate, 14 parts of isooctyl acrylate, 0.5 parts of acrylic acid, methacrylic acid 2 parts of hydroxypropyl ester, 2 parts of N-methylolacrylamide, 3 parts of nonylphenol polyoxyethylene ether, 8 parts of sodium dodecylsulfonate, 0.2 part of DNS-86 (Qingyuan Chemical Industry), buffer bicarbonate 1 part of sodium, 5 parts of protective glue PVA1788 (Taiwan Changchun Chemical Industry), 0.6 part of defoamer, and 0.5 part of fungicide.

[0057] Preparation of pre-emulsion: Put 30-60wt% deionized water and 60-70wt% emulsifier into the emulsification kettle, add all the monomers, start stirring and emulsifying for more than 30 minutes Obtain pre-emulsion;

[0058] Prepa...

Embodiment 3

[0062] In this embodiment, the water-based paper-plastic laminating glue is prepared by seed emulsion polymerization process, specifically,

[0063] Composition ratio (weight): 350 parts of deionized water, 320 parts of vinyl acetate, 65 parts of acrylonitrile, 45 parts of butyl acrylate, 14 parts of ethyl acrylate, 3 parts of acrylic acid, 3 parts of N-methylol acrylamide, nonyl 4 parts of phenol polyoxyethylene ether, 6 parts of sodium dodecylbenzenesulfonate, 0.3 part of DNS-86 (Qingyuan Chemical Industry), 0.8 part of buffer sodium bicarbonate, 5 parts of protective glue PVA1799 (Taiwan Changchun Chemical Industry), defoaming 0.6 parts of agent, 0.5 parts of fungicide.

[0064] Pre-emulsion preparation: put deionized water accounting for 30-60% of the total weight of deionized water into the emulsification kettle, and emulsifier accounting for 60-70% of the total weight of the emulsifier, add all the monomers, start stirring and emulsifying for more than 30 minutes Obtain...

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Abstract

The invention relates to a water-based paper-plastic laminating adhesive and a preparation method thereof, and discloses an emulsion paper-plastic laminating adhesive with a high content of vinyl acetate. The paper-plastic laminating adhesive is prepared by adopting a seed emulsion polymerization process, wherein monomers used in the seed emulsion polymerization process comprise a hard monomer, asoft monomer and a functional monomer, the hard monomer is mainly the vinyl acetate accounting for 80-90% by weight of the hard monomer, and the other hard monomer is one or more selected from the group consisting of acrylonitrile, methyl methacrylate and methyl acrylate. The water-based paper-plastic laminating adhesive provided by the invention has good initial adhesion and peeling force, can beapplied to hard paper-plastic composite film packaging materials including but not limited to paper-plastic composite films used for cigarette cases, paper-plastic composite films used for mobile phone cases, paper-plastic composite films used for handbags, paper-plastic composite films used for beer packaging boxes and the like, and has a wide market application value.

Description

technical field [0001] The invention belongs to the technical field of laminating glue for paper-plastic composite films, and in particular relates to a water-based vinyl acetate emulsion laminating glue and a preparation method thereof. Background technique [0002] Paper-plastic composite refers to compounding a layer of plastic film on the surface of paper-based printed matter. It is a composite material commonly used in the printing industry. It combines the advantages of paper and plastic. It is waterproof, durable, and highly decorative, so that the text and patterns can be protected for a long time. . [0003] Paper-plastic laminating adhesive not only requires good adhesion to the surface of non-polar, low surface energy plastic film, but also requires good adhesion to the surface of polar paper; it must also have good affinity for ink Sex, which puts forward some special requirements for paper-plastic laminating glue. Based on the special requirements of paper-pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J131/04C08F218/08C08F220/14C08F220/48C08F220/18C08F220/20C08F220/58C08F220/06C08F2/26C08F2/30C08F2/24C08F4/40
CPCC08F2/24C08F2/26C08F2/30C08F4/40C08F218/08C09J131/04
Inventor 罗贺斌尹勇强
Owner BLUE OCEAN & BLACK STONE TECH CO LTD FUJIAN