Fine-denier flat yarn and manufacturing method thereof

A manufacturing method and technology of flat yarn, applied in filament/thread forming, textile and papermaking, melting of filament raw materials, etc., can solve problems such as high fiber flatness, improve internal quality, and improve fiber unevenness rate, to ensure the effect of molding requirements

Inactive Publication Date: 2014-02-26
TONGXIANG ZHONGCHEN CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Fiber flatness is to...

Method used

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  • Fine-denier flat yarn and manufacturing method thereof

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Embodiment 1

[0016] Such as figure 1 As shown, the fine denier flat yarn described in this embodiment has a monofilament fineness of 0.6-0.9 dtex and a hole number specification of 288.

[0017] The preparation method of fine denier flat silk is as follows:

[0018] (1) Preparation of spinning melt

[0019] Purified terephthalic acid (PTA) and ethylene glycol (EG) enter the slurry preparation tank 3 through the PTA delivery pipeline 1 and the EG delivery pipeline 2 respectively, and then enter the slurry feeding tank 5. Under the action of the motor 4, the The slurry is mixed evenly. After the slurry passes through esterification reactor 6, metering injection pump 7, catalyst feeding device 8, precondensation reactor 9, final polymerization reactor 10 and other equipment, the spinning melt is obtained. The vacuum system device 11 ensures that the pre-polycondensation reaction and the final polycondensation reaction have a suitable vacuum degree. The esterification temperature is 270°C,...

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Abstract

The invention relates to the field of polyester fiber production and particularly discloses a fine-denier flat yarn and a manufacturing method thereof. The fine-denier flat yarn has good properties such as glare performance, fluffiness, soiling resistance, pilling resistance and dyeing easiness. According to the manufacturing method, after being pressurized by a booster pump and cooled by a melt cooler through a melt conveying pipeline, spinning melt is distributed into spinning boxes through a distribution valve, then measured through a measuring pump and sent into a special shape yarn spraying assembly for filtering and extrusion and then cooled through circular air blowing to obtain primary fiber; after being processed by an oiling unit, yarn guide hooks, yarn guide plates a pre-weaving unit and the like, the primary fiber enters a winder at a certain tension to obtain the multi-aperture superfine-denier flat yarn. The fine-denier flat yarn has good properties such as glare performance, fluffiness, soiling resistance, pilling resistance and dyeing easiness, overcomes wax type soft and smooth feeling of fabric woven from round-section fiber, provides a specific style and excellent properties for the fabric and is a novel polyester fiber with high added value.

Description

technical field [0001] The invention relates to the production field of polyester fibers, in particular to a fine denier flat yarn and a manufacturing method thereof. Background technique [0002] Usually the fiber cross-section is circular, but the fiber cross-section is in other shapes, such as trilobal, multi-lobal, triangular, star-shaped, flat, hollow, etc., or a mixture of circular cross-section and special-shaped cross-section, these filaments are called special-shaped filaments. The cross-section of the special-shaped yarn is formed when the special-shaped spinneret hole is sprayed. The special-shaped yarn improves the waxy feeling and luster of the round yarn, improves the friction coefficient of the fiber, and increases the specific surface area of ​​the fiber, thereby overcoming some synthetic fibers. some inherent flaws. Flat yarn is a kind of profiled yarn. It is stain-resistant and anti-pilling, and is easier to dye. It can endow the fabric with unique style a...

Claims

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Application Information

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IPC IPC(8): D01D5/253D01D1/04D01D13/00D01F6/62
Inventor 钱卫根施中其孙建杰陈志强杨国权
Owner TONGXIANG ZHONGCHEN CHEM FIBER
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