Transfer printing PP glue and preparation method thereof

A technology of resin and chlorinated polypropylene, applied in adhesives, adhesive types, aldehyde/ketone condensation polymer adhesives, etc., can solve the problems of harsh preparation methods, high surface crystallinity, and low surface energy, and achieve Excellent adhesion, good leveling, good drying effect

Inactive Publication Date: 2015-02-11
RESPLENDENT SHANGHAI SPECIALDECAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its high surface crystallinity, low polarity and low surface energy, polypropylene is difficult to bond with ordinary glue. Most of the PP glue used in the domestic thermal transfer printing industry relies on imports, and the price is relatively high.
[0003] The Chinese patent with the application number 200510037855.2 discloses a watermark-free thermal transfer adhesive, the raw materials used include water, polyvinyl alcohol, polyvinylpyrrolidone, boric acid, acrylamide, etc. The raw materials used in this thermal transfer adhesive are relatively More, so the cost is higher. In addition, in the preparation, it is necessary to consider the compatibility between different raw materials and the preparation process that various raw materials can adapt to, such as reaction temperature, reaction pressure, etc., to prevent the raw materials from occurring during the preparation process. Variation, so the preparation method is relatively harsh

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Add 20 parts of chlorinated polypropylene resin successively in batching kettle, can choose the CPP that chlorine content is 25%; Add 5 parts of EVA resin again, can choose the EVA that vinyl acetate content is 25%; Add 5 parts of phenolic resin again, You can choose phenolic resin with a softening point of 80-120°C, 3 parts of anti-adhesive additives, you can choose fumed silica; 40 parts of toluene, 27 parts of ethyl acetate; then start the mixer at a speed of 5000 rpm and stir for 90 The glue can be properly diluted with toluene according to the viscosity requirement during use.

Embodiment 2

[0031] Add 10 parts of chlorinated polypropylene resin successively in batching kettle, can choose the CPP that chlorine content is 30%; Add 8 parts of polyolefin adhesion promoter resin again, can choose DX-526P resin; Add 5 parts of EVA resin again, You can choose EVA with a vinyl acetate content of 25%; add 5 parts of phenolic resin, you can choose phenolic resin with a softening point of 70-140°C, and 2 parts of anti-sticking additives, you can choose silicone-based anti-sticking and slipping additives ; 50 parts of toluene, 10 parts of ethyl acetate, 10 parts of methyl ethyl ketone; then start the mixer, the speed is 8000 rpm, and stir for 60 minutes. The glue can be properly washed with toluene according to the viscosity requirements during use. dilute.

Embodiment 3

[0033] Add 15 parts of chlorinated polypropylene resin successively in batching kettle, can choose the CPP that chlorine content is 28%; Add 5 parts of polyolefin adhesion promoter resin again, can choose DX-526P resin; Add 8 parts of EVA resin again, You can choose EVA with a vinyl acetate content of 25%; add 6.5 parts of phenolic resin, you can choose phenolic resin with a softening point of 75-120 ° C, 0.5 parts of anti-sticking additives, you can choose organic polyethylene wax; 30 parts of toluene, 20 parts of ethyl acetate and 15 parts of methyl ethyl ketone; then start the mixer at a speed of 10,000 rpm and stir for 30 minutes. The glue can be properly diluted with toluene according to the viscosity requirements during use.

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PUM

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Abstract

The invention relates to a transfer printing PP glue and a preparation method thereof. The transfer printing PP glue is prepared from the following raw materials by weight part: 5-40 of chlorinated polypropylene resin, 0-40 of polyolefin adhesion promotion resin, 0-20 of EVA resin, 0-20 of phenolic resin, 0.1-5 of an anti-adhesive additive, and 60-90 of an organic solvent. The preparation method includes: when the raw materials are not 0 at the same time, under room temperature and atmosphere pressure, conducting stirring mixing for 40-120min at a stirring speed of 2000-10000 rpm, thus obtaining the transfer printing PP glue. Compared with the prior art, the preparation method provided by the invention is simple and is safe to operate. The prepared glue has the advantages of good stability, no denaturation after long-term placement, and is good drying property, good leveling property, easy gravure coating, and excellent adhesion to PP substrates and a variety of ink layers and coatings.

Description

technical field [0001] The invention relates to a thermal transfer glue and a preparation method thereof, in particular to a PP glue for transfer printing and a preparation method thereof. Background technique [0002] Thermal transfer printing is a relatively new printing process, which consists of a printing carrier (usually PET biaxially oriented polyester film), a release layer, an ink layer, and an adhesive layer, and then passes through a hot stamping machine under a certain pressure, The temperature will peel off the ink layer from the printing carrier, and the pattern will be firmly attached to the transferred substrate through the bonding effect of the glue. This technology is widely used in packaging and decoration of daily necessities, building materials, oil drums, etc. Depending on the material of the substrate to be transferred, different glues are required. Polypropylene (PP) is a widely used transfer printing substrate in the packaging industry of daily nec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/28C09J123/08C09J161/06
Inventor 金哲
Owner RESPLENDENT SHANGHAI SPECIALDECAL CO LTD
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