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Method for producing modified cation polyester filament and product thereof

A technology of cationic polyester and production method, which is applied in the directions of single-component copolyester rayon filament, melt spinning method, stretch spinning method, etc. Good skin affinity, good anti-pilling performance, process control elimination effect

Active Publication Date: 2011-06-15
ZHEJIANG HENGYI PETROCHEMICAL RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also have similar other documents to mention adopting isophthalic acid-5-sulfonic acid sodium, polyethylene glycol as the 3rd, the 4th monomer development a kind of normal pressure dyeable modified cationic polyester and filament, but all The false twist processing technology adopted in the present invention is not involved, and the properties of the modified cationic polyesters used are not the same, so the properties of the fibers obtained are also very different.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Preparation of modified cationic polyester

[0041] On the continuous polymerization equipment (produced by China Textile Institute, the same below), the output is set to 2000kg / h, and the two are beaten according to the molar ratio of terephthalic acid: ethylene glycol = 1:1.18, and the relative The catalyst ethylene glycol antimony with phthalic acid weight of 0.03% is continuously transported to the esterification tank I for esterification reaction. The esterification rate is measured to be 89.1% and then transported to the esterification tank II.

[0042] Continuously add 2% ethylene glycol isophthalate-5-sodium sulfonate relative to the molar weight of terephthalic acid and polyethylene glycol 5-sulfonate 8% relative to the weight of terephthalic acid to the esterification kettle II. Alcohol (molecular weight: 600), and a stabilizer trimethyl phosphate of 0.06% relative to the weight of terephthalic acid was added, and the temperature was controlled at 230-245°...

Embodiment 2

[0051] (1) Preparation of modified cationic polyester

[0052] On the continuous polymerization equipment, set the output to 2000kg / h, beat the two according to the molar ratio of terephthalic acid: ethylene glycol = 1:1.23, and add 0.05% catalyst relative to the weight of terephthalic acid Antimony trioxide is continuously transported to the esterification kettle I for esterification reaction, and the esterification rate is measured to be 92.1%, and then transported to the esterification kettle II.

[0053] Continuously add ethylene glycol isophthalate-5-sodium sulfonate which is 4% relative to the molar weight of terephthalic acid, and polyethylene glycol 5-sulfonate which is 5% relative to the weight of terephthalic acid to the esterification kettle II. Alcohol (molecular weight: 1000), and adding 0.04% stabilizer triphenyl phosphate relative to the weight of terephthalic acid, and controlling the temperature at 230-245°C for 40 minutes.

[0054] Finally, the homogeneously...

Embodiment 3

[0062] (1) Preparation of modified cationic polyester

[0063] On the continuous polymerization equipment, set the output to 2000kg / h, beat the two according to the molar ratio of terephthalic acid: ethylene glycol = 1:1.28, and add 0.07% catalyst relative to the weight of terephthalic acid Ethylene glycol antimony is continuously transported to the esterification tank I for esterification reaction. The measured esterification rate is 95.0%, and then transported to the esterification tank II.

[0064] Continuously add 7% ethylene glycol isophthalate-5-sodium sulfonate relative to the molar weight of terephthalic acid and 2% polyethylene disulfide relative to the weight of terephthalic acid to the esterification kettle II. Alcohol (molecular weight 4000), and a stabilizer triphenyl phosphate of 0.02% relative to the weight of terephthalic acid was added, and the temperature was controlled at 230-245°C for 50 minutes.

[0065] Finally, the homogeneously mixed esterified product...

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Abstract

The invention belongs to the field of manufacture of chemical fibers, in particular to a method for producing a modified cation polyester filament imitating a cellulose fiber. The method comprises the following steps of: preparing modified cation polyester; carrying out melting spinning by aiming at the characteristics of the modified cation polyester to obtain an orientated filament; and carrying out false twisting on the orientated filament under the condition of a special elasticizing process. The invention also provides a modified cation polyester filament prepared with the production method. The cation polyester filament disclosed by the invention has favorable fuzzing and pilling resistance, can be dyed at normal pressure without high-temperature and high-pressure conditions, saves the dyeing cost and has bright color after being dyed and high skin intimacy, and the hygroscopicity is better than that of common cation terylene filament.

Description

technical field [0001] The invention belongs to the field of chemical fiber manufacture, and in particular relates to a production method of modified cationic polyester filament imitating cellulose fiber and a product obtained by the production method. Background technique [0002] Cellulose fiber refers to natural plant fibers such as cotton and hemp, and regenerated cellulose fibers formed by processing plant fibers, such as viscose, modal fiber, Lyocell fiber, etc. Cellulose fiber has a series of characteristics that synthetic fibers cannot fully possess, such as good skin contact, wearing comfort, physiological safety, hygroscopicity and easy finishing, and easy biodegradability. Therefore, textile fabrics made of cellulose fiber And non-woven fabrics have unique uses in the fields of textiles and clothing, medical and health care, and home textiles. [0003] As the market demand for cellulose fibers such as cotton and viscose increases day by day, the price also rises....

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/12D01D5/08C08G63/688D01F6/84
Inventor 缪国华曾伟忠赵伟峰
Owner ZHEJIANG HENGYI PETROCHEMICAL RES INST CO LTD
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