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Polyester slurry and production method thereof

A technology of polyester size and formulation, applied in the field of ester-polymerized polyester size

Inactive Publication Date: 2012-12-12
苏州市华元化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the molecular chain of starch size is relatively large, the fluidity is poor, and the penetration ability to the yarn is poor during sizing. Over time, the size film will be brittle and hard, and it is easy to gel during size adjustment; while using polyvinyl alcohol and acrylic size, Adhesion, moisture absorption and re-viscosity are poor, the effect is not very good when used on polyester fibers, especially polyester filaments, and the use of this kind of slurry will cause certain pollution when finishing fabrics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Below by embodiment the present invention is further described:

[0020] The main component of the polyester slurry is terephthalate; its formula ratio is calculated by mass fraction, terephthalic acid: 15-20 parts, alcohol: 3-15 parts, water: 5-10 parts, catalyst For: 2-3 parts, polymerization aid: 2-3 parts, base: 1-5 parts, emulsifier: 0.1-0.3 parts.

[0021] Take the preparation method of a kind of described polyester size as example below, adopt following process steps: its formula ratio is by weight fraction:

[0022] 1. Prepare the preliminary reaction solution: Add 15-20 parts of terephthalic acid, 3-15 parts of alcohol, and 5-10 parts of water in sequence in the container, heat to 20°C-40°C, and stir until the liquid is evenly mixed.

[0023] Esterification reaction: heat the mixed solution obtained in step 1 to 50°C-70°C, then add 2-3 parts of catalyst evenly, and stir until the esterification reaction is completed.

[0024] Extraction: The mixed solution ob...

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PUM

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Abstract

The invention provides a polyester slurry, which belongs to the technical field of textile slurry. The main component of the polyester slurry is methyl terephthalate; a formula for the polyester slurry comprises the following components expressed in mass percentage: 15 to 20 parts of terephthalic acid, 3 to 15 parts of alcohol, 5 to 10 parts of water, 2 to 3 parts of a catalyst, 2 to 3 parts of auxiliary agents for polymerization, 0.1 to 0.3 part of emulsifier and 1 to 2 parts of alkali. The polyester slurry has the characteristics of high molecular weight, strong adhesion strength, good water-solubility, excellent film forming ability, moderate hygroscopicity, a little foam and easy biodegradation and is a new-generation high performance green environment-friendly product.

Description

technical field [0001] The invention relates to a textile size, in particular to an ester-polymerized polyester size and a production method thereof. Background technique [0002] As an important process in the fabric printing and dyeing industry, sizing has different requirements for the material of the sizing material for different fabrics. In order to meet people's higher and higher quality requirements, the cloth printing and dyeing industry is constantly trying to improve traditional materials. Many new materials are gradually accepted by people because of their superior cost performance, but there will also be some new problems in printing, dyeing and sizing. ; For example, polyester fiber has excellent performance in terms of strength, heat resistance, elasticity, wear resistance, etc. The strength of polyester fiber is nearly 1 times higher than that of cotton and 3 times higher than that of wool. It can be used at 70 ~ 1700C. It is a synthetic fiber. It has the bes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/183D06M15/507D06M101/32
Inventor 徐永华
Owner 苏州市华元化工有限公司