A kind of production method of special polyester staple fiber for vortex spinning with hydrophilic moisture conduction

A technology of polyester staple fiber and production method, which is applied in the directions of fiber processing, stretch spinning, fiber chemical characteristics, etc., can solve the problems of poor fiber formability, poor spinnability, and many impurities in polyester melt, and achieves a reduction in stiffness. , Good hygroscopicity and stable molecular weight
CN105586660BActive Publication Date: 2019-12-03CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2019-12-03

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Abstract

A production method for hydrophilic moisture-transmitting polyester staple fibers specially used for vortex spinning is disclosed. The method adopts a continuous polyester production device for production. The method includes subjecting a hydrophilic modifying agent, terephthalic acid (PTA for short) and ethylene glycol (EG for short) to ternary copolymerization under action of a titanium catalyst to obtain hydrophilic polyester melt, increasing pressure through a booster pump, delivering directly through a melt pipe to a spinning device, metering through a metering pump, feeding the melt into a spinning box, spinning through a special-shaped section, performing after-treatment, mixing with common terylene according to a ratio, and chopping to obtain the staple fibers. The method allows hydrophobic polyester melt to be turned into the hydrophilic polyester melt and makes the polyester melt more environmental friendly and stabler. The produced polyester staple fibers specially used for vortex spinning has hydrophilic and moisture-transmitting functions, and can be used for manufacturing fabrics with permanent moisture-absorbing and quick-dry properties.
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Description

technical field

[0001] The invention relates to a method for manufacturing polyester staple fiber, in particular to a method for manufacturing polyester staple fiber which has a hydrophilic and moisture-conducting function and is specially used in a vortex spinning process. Background technique

[0002] Vortex spinning has many advantages such as fast speed, high output, short process and high production rate. Since it was launched by Japanese Murata in the 1980s, it has developed rapidly. Theoretically, vortex spinning has wide adaptability, and can be used to process various high-fiber pure or blended yarns such as chemical fiber, viscose fiber, linen or cotton, but in fact, vortex spinning is not suitable for processing pure chemical fiber. It will encounter great troubles. Polyester is a rigid high polymer, and its molecular chain segments have poor mobility, high fiber modulus, low flexibility, and hard hand feeling. It is used as a raw material for eddy current spinnin...

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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