A kind of ultra-bright three-lobed special-shaped FDY fiber and its preparation method

A special-shaped and bright technology, applied in the field of polyester fiber, can solve the problems of destroying the regularity of the chain segment, the difficulty of coloring polyester fiber, and the difficulty of dyeing PET fiber.

CN104480564BActive Publication Date: 2016-05-11JIANGSU HENGLI CHEM FIBER

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: JIANGSU HENGLI CHEM FIBER
Publication Date: 2016-05-11

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Abstract

The invention relates to super-bright light trefoil irregular FDY fiber and a preparation method thereof. The super-bright light trefoil irregular FDY fiber is made of modified polyester and is manufactured by spinning the modified polyester by using a trefoil irregular spinneret plate of which the spinneret orifice has a Y-shaped structure; the modified polyester consists of polyester and amino fatty acid gylcol ester; the amino fatty acid gylcol ester is dispersed among molecular chains of the polyester and has hydrogen-bond interaction to the polyester, so that the relative positions of the molecular chains of the amino fatty acid gylcol ester and the polyester are fixed; under the condition of 90-130 DEG C, the free volume space of a part of the molecular chains inside the super-bright light trefoil irregular FDY fiber is increased by 20-30v / v%. Under the condition that identical pigment such as disperse red 3B is used, the super-bright light trefoil irregular FDY fiber has a dyeing rate which is much higher than that of ordinary fiber, and color flooding is reduced after dyeing. The super-bright light trefoil irregular FDY fiber can be used in fields such as woven satin fabrics and imitated silk fabrics.

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Description

technical field

[0001] The invention belongs to the technical field of polyester fibers, and relates to a super-bright three-lobed special-shaped FDY fiber and a preparation method thereof. Background technique

[0002] Since its appearance, polyethylene terephthalate (PET) fiber has developed rapidly because of its excellent performance, and its output has become the crown of synthetic fibers in the world. Polyester fiber has a series of excellent properties such as high breaking strength and elastic modulus, moderate resilience, excellent heat setting, good heat resistance and light resistance, acid resistance, alkali resistance and corrosion resistance, and the fabric has the advantages of wrinkle resistance and good stiffness, so , Polyester fibers are widely used in clothing, home textiles and other fields.

[0003] PET is a symmetrical linear macromolecule, the molecular chain does not contain side chain groups, and its regularity is very good. Its main chain contains...

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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