All-transfer elastic film and preparation method thereof

A technology of elastic film and PU resin, which is applied in the field of full-turn elastic film and its preparation, can solve the problems of large pollution, large loss, and low processing efficiency in the tanning process, and achieve increased production yield, reduced loss, and improved stability and efficiency

Inactive Publication Date: 2018-12-14
东莞市鼎盛塑胶膜有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the leather industry, most of them are directly sprayed or rolled on the carrier, which has defects such as large loss and low processing efficiency in the original process, and in the case of the country's increasing environmental protection, the pollution of traditional tanning processes is also extremely high. Big

Method used

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  • All-transfer elastic film and preparation method thereof
  • All-transfer elastic film and preparation method thereof
  • All-transfer elastic film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A full-turn elastic membrane, comprising the following raw materials in parts by weight:

[0027]

[0028]

[0029] The solid content of the oily PU resin is 20%.

[0030] The preparation method of the oily PU resin is as follows: react 80 parts by weight of polyol, 30 parts by weight of polyisocyanate, and 0.01 part by weight of catalyst at 70° C. for 2 hours, then add 5 parts by weight of polyol chain extender for chain extension reaction for 2 hours, Cool down to 30°C, add 5 parts by weight of triethylamine for neutralization reaction for 20 minutes; add organic solvent and stir evenly to obtain oily PU resin.

[0031] The polyol is a mixture composed of polycarbonate diol, polycaprolactone diol and polytetrahydrofuran diol in a weight ratio of 2:1:1, and the number average molecular weight of the polyol is 1000.

[0032] The polyisocyanate is composed of diphenylmethane diisocyanate, xylylene diisocyanate and methylcyclohexyl diisocyanate in a weight ratio of...

Embodiment 2

[0039] A full-turn elastic membrane, comprising the following raw materials in parts by weight:

[0040]

[0041] The solid content of the oily PU resin is 30%.

[0042] The preparation method of the oily PU resin is as follows: react 90 parts by weight of polyol, 35 parts by weight of polyisocyanate, and 0.02 parts by weight of catalyst at a temperature of 75° C. for 1.8 hours, then add 8 parts by weight of polyol chain extender for chain extension reaction 2.5 h, lower the temperature to 35°C, add 8 parts by weight of triethylamine to neutralize and react for 25 minutes; add an organic solvent and stir evenly to obtain an oily PU resin.

[0043] The polyol is a mixture composed of polycarbonate diol, polycaprolactone diol and polytetrahydrofuran diol in a weight ratio of 2.5:1.2:1, and the number average molecular weight of the polyol is 1500.

[0044] The polyisocyanate is composed of diphenylmethane diisocyanate, xylylene diisocyanate and methylcyclohexyl diisocyanate in...

Embodiment 3

[0051] A full-turn elastic membrane, comprising the following raw materials in parts by weight:

[0052]

[0053] The solid content of the oily PU resin is 35%.

[0054] The preparation method of the oily PU resin is as follows: react 100 parts by weight of polyol, 40 parts by weight of polyisocyanate, and 0.03 parts by weight of catalyst at 80°C for 1.5 hours, then add 10 parts by weight of polyol chain extender for chain extension reaction for 3 hours , lower the temperature to 40°C, add 10 parts by weight of triethylamine to neutralize and react for 30 minutes; add an organic solvent and stir evenly to obtain an oily PU resin.

[0055] The polyol is a mixture composed of polycarbonate diol, polycaprolactone diol and polytetrahydrofuran diol in a weight ratio of 3:1.5:1, and the number average molecular weight of the polyol is 2000.

[0056] The polyisocyanate is composed of diphenylmethane diisocyanate, xylylene diisocyanate and methylcyclohexyl diisocyanate in a weight...

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Abstract

The invention relates to the technical field of a heat transfer film, in particular to an all-transfer elastic film and a preparation method thereof. The all-transfer elastic film comprises the following raw materials in parts by weight: 80 to 120 parts of oily PU resin, 1 to 50 parts of aid, 5 to 25 parts of pigment and 50 to 300 parts of solvent. According to the all-transfer elastic film, the oily PU resin serves as a main body and is compounded with the aid, the pigment and the solvent, a PET base material is coated with coating through intaglio roller or comma coating, the prepared all-transfer elastic film can transfer a PU coating on a carrier (fur, leather and cloth) through heat transfer, and one layer of imitated fur with elasticity is attached to the carrier and can be used forrepairing defects on the leather, avoiding wool or changing color, so that bad fur takes on better fur feeling, or the leather or cloth has the effect of fur feeling; and the stability and the efficiency of leather production can be improved, loss can be reduced and the production yield can be increased.

Description

technical field [0001] The invention relates to the technical field of thermal transfer film, in particular to a full-transfer elastic film and a preparation method thereof. Background technique [0002] In the leather industry, most of them are directly sprayed or rolled on the carrier, which has defects such as large loss and low processing efficiency in the original process, and in the case of the country's increasing environmental protection, the pollution of traditional tanning processes is also extremely high. big. Contents of the invention [0003] In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide a full-rotation elastic film, which can be used to repair defects on leather, avoid velvet or change color, and make bad leather appear more Good leather feeling, or leather or cloth has a leather feeling effect, which can also improve the stability and efficiency of tanning production, reduce loss, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08L75/06C08L71/02C08L1/28C08L71/00C08L83/04C08G18/32C08G18/42C08G18/44C08G18/48C08G18/75C08G18/76C08G18/66C08J5/18
CPCC08G18/3206C08G18/3212C08G18/4018C08G18/4277C08G18/44C08G18/4854C08G18/6607C08G18/758C08G18/7642C08G18/7671C08J5/18C08J2375/06C08J2375/08C08J2401/28C08J2471/00C08J2471/02C08J2483/04
Inventor 吴凤如陈良雨
Owner 东莞市鼎盛塑胶膜有限公司
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