Ultra-soft polyester fiber-polyester fiber complex yarn and preparation method thereof
A composite silk, polyester-polyester technology, applied in the manufacture of rayon, conjugated synthetic polymer rayon, melt spinning, etc., can solve the problems of easy pilling, poor antistatic performance, low hygroscopicity, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0057] A method for preparing supersoft polyester-polyester composite yarn, the preparation steps are as follows:
[0058] (1) prepare modified polyester;
[0059] (1.1) Esterification reaction;
[0060] Make a slurry of terephthalic acid, ethylene glycol, dimethylsilanediol and 5-tert-butyl-1,3-benzenedicarboxylic acid, add antimony trioxide, titanium dioxide and triphenyl phosphate and mix evenly, The esterification reaction is carried out under normal pressure in a nitrogen atmosphere. The temperature of the esterification reaction is 255 ° C. When the amount of water distilled in the esterification reaction reaches 95% of the theoretical value, it is the end point of the esterification reaction. The molar ratio of formic acid to ethylene glycol is 1:1.8, the sum of the added amount of dimethylsilanediol and 5-tert-butyl-1,3-benzenedicarboxylic acid is 5mol% of the added amount of terephthalic acid, dimethyl The molar ratio of dibasic acid of silicon diol and 5-tert-butyl...
Embodiment 2
[0085] A method for preparing supersoft polyester-polyester composite yarn, the preparation steps are as follows:
[0086] (1) prepare modified polyester;
[0087] (1.1) Esterification reaction;
[0088] Make a slurry of terephthalic acid, ethylene glycol, dimethyldiphenyldisiloxanediol and 5-tert-butyl-1,3-phthalic acid, add antimony ethylene glycol, titanium dioxide and triphosphate After the methyl ester is mixed evenly, pressurize the esterification reaction in a nitrogen atmosphere. The pressurized pressure is 0.3MPa, and the temperature of the esterification reaction is 250°C. is the end point of the esterification reaction, wherein the molar ratio of terephthalic acid to ethylene glycol is 1:1.2, and the ratio of dimethyldiphenyldisiloxane diol and 5-tert-butyl-1,3-phthalic acid The sum of the addition amount is 3.5mol% of the addition amount of terephthalic acid, and the mol ratio of the dibasic acid of dimethyldiphenyldisiloxane diol and 5-tert-butyl-1,3-phthalic ac...
Embodiment 3
[0101] A method for preparing supersoft polyester-polyester composite yarn, the preparation steps are as follows:
[0102] (1) prepare modified polyester;
[0103] (1.1) Preparation of 2-tert-butyl-1,6-hexanedicarboxylic acid;
[0104] First mix tungstic acid and hydrogen peroxide, stir at room temperature for 12 minutes, then add 2-tert-butylcyclohexanol to react at 83°C for 1.5h, then raise the temperature to 92°C for 2.5h, during the reaction, the reaction The product is always in a reflux state, and finally undergoes cooling crystallization, washing and refining to obtain 2-tert-butyl-1,6-hexanedicarboxylic acid. At the beginning of the reaction, the molar ratio of tungstic acid, 2-tert-butylcyclohexanol and hydrogen peroxide is 1 :35:140;
[0105] (1.2) Esterification reaction;
[0106] Make a slurry of terephthalic acid, ethylene glycol, tetramethyldisiloxane diol and 2-tert-butyl-1,6-hexanedicarboxylic acid, add antimony acetate, titanium dioxide and trimethyl phosph...
PUM
Property | Measurement | Unit |
---|---|---|
Monofilament denier | aaaaa | aaaaa |
Fineness | aaaaa | aaaaa |
Breaking strength | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com