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Warm-keeping and moisture-absorbing composite polyester fiber with synergistic effect of skin-core components and preparation method thereof

A synergistic, composite polyester technology, applied in the direction of fiber chemical characteristics, conjugated synthetic polymer rayon, rayon manufacturing, etc., to achieve high-efficiency light-to-heat conversion, reduce frictional resistance, and good lubricity

Active Publication Date: 2021-12-28
JIANGSU JIANGNAN HIGH POLYMER FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing research on skin-core composite fibers, few involve the synergistic effect of skin-core components to form functional modifications.

Method used

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  • Warm-keeping and moisture-absorbing composite polyester fiber with synergistic effect of skin-core components and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] A method for preparing a warm-keeping and moisture-absorbing composite polyester fiber with synergistic effect of sheath and core components, comprising:

[0073] Step 1: Preparation of modified polyester A.

[0074] (1.1) Esterification reaction:

[0075] Esterification of dibasic acid, mixed diol and catalyst according to a certain molar ratio;

[0076] The dibasic acid is one of terephthalic acid, isophthalic acid, succinic acid, adipic acid, suberic acid and sebacic acid;

[0077] The mixed glycol is composed of a short-chain glycol and a long-chain glycol, the short-chain glycol is one of ethylene glycol, propylene glycol and butanediol, and the long-chain glycol is diethylene glycol , one of pentanediol and hexanediol;

[0078] The molar ratio of described dibasic acid and mixed dibasic alcohol is 1:1.1, and wherein the molar ratio of short-chain dibasic alcohol and long-chain dibasic alcohol is 4:6;

[0079] The catalyst is one of antimony ethylene glycol, an...

Embodiment 2

[0111] A method for preparing a warm-keeping and moisture-absorbing composite polyester fiber with synergistic effect of sheath and core components, comprising:

[0112] Step 1: Preparation of modified polyester A.

[0113] (1.1) Esterification reaction:

[0114] Esterification of dibasic acid, mixed diol and catalyst according to a certain molar ratio;

[0115] The dibasic acid is one of terephthalic acid, isophthalic acid, succinic acid, adipic acid, suberic acid and sebacic acid;

[0116] The mixed glycol is composed of a short-chain glycol and a long-chain glycol, the short-chain glycol is one of ethylene glycol, propylene glycol and butanediol, and the long-chain glycol is diethylene glycol , one of pentanediol and hexanediol;

[0117] The molar ratio of described dibasic acid and mixed dibasic alcohol is 1:1.5, and wherein the molar ratio of short chain dibasic alcohol and long chain dibasic alcohol is 6:4;

[0118] The catalyst is one of antimony ethylene glycol, an...

Embodiment 3

[0150] A method for preparing a warm-keeping and moisture-absorbing composite polyester fiber with synergistic effect of sheath and core components, comprising:

[0151] Step 1: Preparation of modified polyester A.

[0152] (1.1) Esterification reaction:

[0153] Esterification of dibasic acid, mixed diol and catalyst according to a certain molar ratio;

[0154] The dibasic acid is one of terephthalic acid, isophthalic acid, succinic acid, adipic acid, suberic acid and sebacic acid;

[0155] The mixed glycol is composed of a short-chain glycol and a long-chain glycol, the short-chain glycol is one of ethylene glycol, propylene glycol and butanediol, and the long-chain glycol is diethylene glycol , one of pentanediol and hexanediol;

[0156] The molar ratio of described dibasic acid and mixed dibasic alcohol is 1:2.0, and wherein the molar ratio of short-chain dibasic alcohol and long-chain dibasic alcohol is 8:2;

[0157] The catalyst is one of antimony ethylene glycol, an...

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Abstract

The invention relates to a warm-keeping and moisture-absorbing composite polyester fiber with a synergistic effect of skin-core components and a preparation method thereof. A skin layer is modified polyester A prepared from dibasic acid, mixed dihydric alcohol, polysiloxane and light-absorbing heating powder; a core layer is modified polyester B prepared from dibasic acid, dihydric alcohol and polyethylene glycol through polymerization; the dried modified polyester A is used as the skin layer; the dried modified polyester B is used as the core layer; and the mass ratio of the skin layer to the core layer is 2: 8 to 8: 2. The skin layer component and the core layer component are respectively extruded and melted into melts in respective screw extruders, and then the melts are subjected to spinning, circular blowing cooling, winding and forming to prepare the bi-component skin-core structure fiber. The skin-core composite structure endows the fiber with good elasticity, and meanwhile, the skin-core components have a synergistic effect in the use process and play a role in keeping warm. The composite polyester fiber disclosed by the invention is comfortable to wear, is particularly a textile used outdoors in autumn and winter, and has a wide application market.

Description

technical field [0001] The invention belongs to the field of polyester preparation, and relates to a warm-keeping and moisture-absorbing composite polyester fiber with synergistic effect of sheath-core components and a preparation method thereof. Background technique [0002] Chemical fiber is the basic material of the textile industry. The output of chemical fiber has developed rapidly in recent years. In 2020, the total amount of chemical fiber in China has reached more than 60 million tons. At the same time, the consumption of terminals continues to upgrade, requiring chemical fibers to continuously endow products with functionality through innovations in raw materials and technologies during the manufacturing process. Conjugated fibers are two or more polymer fibers that are not mixed in the same fiber section. It is a physically modified fiber developed in the 1960s. Bicomponent fibers that combine the properties of both polymers can be obtained using composite fiber ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F1/10
CPCD01F8/14D01F1/10Y02A30/14
Inventor 吉鹏陶冶钱燕明
Owner JIANGSU JIANGNAN HIGH POLYMER FIBER
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