Laminated adhesive and preparation method thereof

A technology of adhesives and solvents, applied in the direction of adhesives, polymer adhesive additives, adhesive additives, etc., can solve the problems of poor ink layer affinity, difficult coating, environmental pollution, etc., and achieve improved adhesion, Ease of application and cost reduction

Active Publication Date: 2016-11-23
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, most SBS laminating adhesives are solvent-based. Although the adhesion is good, a large amount of organic solvents will directly volatilize into the air during operation, causing environmental pollution and poisoning to the human body.
People find that SBS glue still has some shortcomings in use: (1) the peel strength of the laminated paper decreases rapidly; (2) the viscosity is high, the fluidity is poor, and the coating is difficult; (3) the affinity for the ink layer Poor performance, when the laminated paper is peeled off, the ink is difficult to remove, and the phenomenon of "light film" is easy to appear

Method used

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  • Laminated adhesive and preparation method thereof
  • Laminated adhesive and preparation method thereof
  • Laminated adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Compound the modified SBS in Table 1 according to the laminating adhesive formula in Table 2, add modified SBS, tackifying resin and organic solvent into the container, and after fully dissolving, add emulsifier and deionized water to Cut emulsifier for emulsification to obtain water-emulsion laminating adhesive. The properties of the obtained water-emulsion laminating adhesive are shown in Table 3 below.

[0038] Table 1 Characteristic parameters of modified SBS

[0039] Sample serial number

corresponding sample

1#

S / B=3 / 7, Mn=89,000

2#

S / B=3 / 7, Mn=108,000

3#

S / B=3 / 7, Mn=127,000

4#

S / B=2 / 8, Mn=82,000

5#

S / B=2 / 8, Mn=104,000

6#

S / B=4 / 6, Mn=83,000

7#

S / B=4 / 6, Mn=105,000

[0040] Table 2 Formula composition of modified SBS water-emulsion laminating adhesive

[0041] components

parts by weight

Modified SBS

2 copies

Terpene resin

5 copies

Rosi...

Embodiment 2

[0046] Except that modified SBS adopts 5# of Table 1 and emulsifier adopts anionic and nonionic emulsifier combination (SDBS+OP-10), others are the same as Example 1. The obtained laminating adhesive emulsion is a white uniform emulsion with a pH of 6.7, a viscosity of 265 at 25° C., a peel strength of 25, and the coating film has no foaming and a smooth plate.

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Abstract

The invention discloses a laminated adhesive and a preparation method thereof. The laminated adhesive is prepared from matrix resin, tackifying resin, auxiliaries and a solvent. One end of the matrix resin is provided with amino, and the other end of the matrix resin is provided with an SBS three-section embedded copolymer. The laminated adhesive has the advantages of being good in flowability, strong in binding power and good in printing ink affinity, the defects that an existing SBS adhesive is poor in affinity to the printing ink layer, when printing oil is hard to uncover when laminated paper is peeled off, and the plain membrane phenomenon is likely to occur are overcome, and the laminated adhesive is environmentally friendly, low in cost and capable of meeting the requirement for industrial production and application.

Description

technical field [0001] The invention relates to a laminating adhesive and a preparation method thereof, belonging to the field of composite polymer materials. Background technique [0002] Lamination is a combination of plastic film coated with adhesive and paper printed matter after heating and pressure to form a paper-plastic product. It is one of the common post-press processing technologies for paper printed matter. The printed matter after lamination has a smoother and brighter surface due to the addition of a thin and transparent plastic film on the surface, which not only improves the gloss and fastness of the printed matter, but also prolongs the service life of the printed matter. Antifouling, abrasion resistance, folding resistance, chemical corrosion resistance and other protective effects. At present, common paper-plastic laminated packaging products include cartons, cartons, handbags, fertilizer bags, seed bags, self-adhesive labels, etc. According to differen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J153/02C09J11/08
Inventor 梁红文许安军刘先珍李望明蒋文英黄丽芳
Owner CHINA PETROLEUM & CHEM CORP
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