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Multifunctional water-based environmentally friendly thermal transfer adhesive composition and preparation method thereof

A technology of thermal transfer printing and composition, applied in the direction of non-polymer organic compound adhesives, adhesives, adhesive additives, etc., which can solve the problem of ironing effect on thermal transfer film, poor fastness, solvent release, environmental protection, etc. problems, to achieve the effect of wide application range, good fastness and good corrosion resistance

Active Publication Date: 2018-08-14
SHANGHAI WEIKAI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the development of hot stamping technology, more and more packaging adopts this decoration technology, but the important adhesive layer, currently for special substrates such as PP, glass, stainless steel, the hot stamping effect of the existing heat transfer film , poor fastness
Moreover, organic solvents such as toluene are currently used in large quantities, and there are environmental problems such as solvent release.

Method used

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  • Multifunctional water-based environmentally friendly thermal transfer adhesive composition and preparation method thereof
  • Multifunctional water-based environmentally friendly thermal transfer adhesive composition and preparation method thereof
  • Multifunctional water-based environmentally friendly thermal transfer adhesive composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment relates to a thermal transfer back adhesive, the preparation method of which comprises the following process steps:

[0032] (1) Put all the solvents, that is, 10 parts of N,N-dimethylacetamide and 5 parts of dimethyl sulfoxide into the reaction kettle, and stir;

[0033] (2) Keep stirring and put 10 parts of carboxypropyl-chlorinated polypropylene, 10 parts of hydroxyethyl methacrylate, 10 parts of aldehyde and ketone resin, 8 parts of polyurethane resin, and 5 parts of hydroxyethyl cellulose into the reaction kettle in turn medium, stir for about 1 hour;

[0034] (3) After all the solids are dissolved and mixed evenly, add 0.01 parts of emulsifier and 50 parts of dispersant (water / ethanol=2 / 1) and slowly put them into the reaction kettle for dispersion and emulsification;

[0035] (4) Shut down and mature for more than 12 hours;

[0036] (5) Measure the solid content and adjust to the theoretical value.

[0037] No carboxypropyl-chlorinated polyprop...

Embodiment 2

[0039] This embodiment relates to a thermal transfer back adhesive, the preparation method of which comprises the following process steps:

[0040] (1) Put all the solvents, that is, 10 parts of N,N-dimethylformamide and 5 parts of triethyl phosphate into the reaction kettle, and stir;

[0041] (2) Keep stirring and put 10 parts of hydroxyethyl-chlorinated polypropylene, 15 parts of hydroxyethyl methacrylate, 5 parts of aldehyde and ketone resin, 5 parts of polyurethane resin, and 5 parts of carboxymethyl cellulose into the reaction kettle in turn medium, stir for about 1 hour;

[0042] (3) After all the solids are dissolved and mixed evenly, add 0.1 part of emulsifier and 70 parts of dispersant (water / ethanol=3 / 1) and slowly put them into the reaction kettle for dispersion and emulsification;

[0043] (4) Shut down and mature for more than 12 hours;

[0044] (5) Measure the solid content and adjust to the theoretical value.

[0045] No hydroxyethyl-chlorinated polypropylen...

Embodiment 3

[0047] This embodiment relates to a thermal transfer back adhesive, the preparation method of which comprises the following process steps:

[0048] (1) Put all the solvents, that is, 10 parts of N,N-dimethylacetamide and 20 parts of tributyl phosphate into the reaction kettle, and stir;

[0049] (2) keep stirring and will have the group (R=C) shown in formula (II) 2 h 5 ) of 20 parts of chlorinated polypropylene, 15 parts of butyl methacrylate, 20 parts of aldehyde and ketone resin, 10 parts of polyurethane resin, and 3 parts of carboxymethyl cellulose are put into the reaction kettle in turn, and stirred for about 1 hour;

[0050] (3) After all the solids are dissolved and mixed evenly, add 1 part of emulsifier and 60 parts of dispersant (water / ethanol=4 / 1) and slowly put them into the reaction kettle for dispersion and emulsification;

[0051] (4) Shut down and mature for more than 12 hours;

[0052] (5) Measure the solid content and adjust to the theoretical value.

[0...

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Abstract

The invention discloses a multifunctional water-based environment-friendly heat transfer printing back glue composition and a preparation method thereof. The composition comprises, 10-20 parts of modified chlorinated polyolefin, 10-20 parts of acrylic resin, 5-10 parts of urethane resin, 5-20 parts of keto-aldehyde resin, 1-5 parts of cellulose resin, 10-30 parts of a solvent, 50-70 parts of a dispersing agent and 0.01-1 part of an assistant. The preparation method comprises the steps that the solvent is put into a reaction kettle, and the modified chlorinated polyolefin, the acrylic resin, the keto-aldehyde resin, the urethane resin and the cellulose resin are sequentially put into the reaction kettle with stirring and stirred to be dissolved; an emulsifying agent and a dispersing agent are slowly put in for dispersion and emulsifying; halting is performed and then curing is performed for more than 12 h, so that the multifunctional water-based environment-friendly heat transfer printing back glue composition is obtained. The heat transfer printing back glue has the good adhesive strength on the surfaces of various base materials such as preprocessed and unprocessed paper, PP, glass and stainless steel, and is good in firmness, good in water and corrosion resistance and wide in application range.

Description

technical field [0001] The invention relates to the field of transfer coatings, in particular to a multifunctional water-based environmentally friendly thermal transfer adhesive composition and a preparation method thereof. Background technique [0002] Thermal transfer printing is a new printing process. The pattern is pre-printed on the surface of the film, and the exquisite pattern on the transfer film is transferred to the surface of the product through a heat transfer machine (heating and pressing). After forming, the ink layer and The surface of the product is integrated, which can greatly improve the grade of the product. [0003] With the development of hot stamping technology, more and more packaging adopts this decoration technology, but the important adhesive layer, currently for special substrates such as PP, glass, stainless steel, the hot stamping effect of the existing heat transfer film , Poor fastness. Moreover, organic solvents such as toluene are used in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/08
Inventor 虞明东杜德谢允斌
Owner SHANGHAI WEIKAI CHEM