Profiled fiber and spinneret plate and preparation method thereof

A special-shaped cross-section and spinneret technology, which is applied in fiber processing, short fiber formation, textiles and papermaking, etc., to achieve the effects of increasing specific surface area, accelerating liquid evaporation, and novel cross-sectional characteristics

Active Publication Date: 2013-09-18
CHINESE TEXTILE ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other patents related to cross-shaped or four-groove fibers also include: CN101139740A, CN1401020A, CN2898068Y, CN101195928A, US3109220, US5707737, US3616633A, etc., all of which have no reports identical to the present invention

Method used

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  • Profiled fiber and spinneret plate and preparation method thereof
  • Profiled fiber and spinneret plate and preparation method thereof
  • Profiled fiber and spinneret plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] The spinneret hole size used was the data shown in Table 1a. PET chips with an intrinsic viscosity of 0.680dl / g are used. The spinning and drawing equipment adopts a common single-screw melt spinning machine and a common hot roller drawing machine. The spinning process parameters are shown in Table 1b, and the drawing process parameters are shown in Table 1c. The properties of the fibers are listed in Table 1d. Both the spinneret hole and the spinning process have adopted the conditions in the invention, and the fiber shape and performance have reached the conditions in the invention.

[0077] Table 1a. Spinning hole size of Example 1

[0078] project

parameters

The ratio of the height to the upper base of the smallest circumscribed trapezoid T of leaf A(C)

1.3

The ratio of the height to the upper base of the smallest circumscribed trapezoid T of leaf B(D)

4.5

The ratio of the height of the smallest circumscribed trapezoid T o...

Embodiment 2

[0086] The spinneret hole size used is the data shown in Table 2a. PET chips with an intrinsic viscosity of 0.668dl / g are used. The spinning and drawing equipment adopts a common single-screw melt spinning machine and a common hot roller drawing machine. The spinning process parameters are shown in Table 2b, and the drawing process parameters are shown in Table 2c. The properties of the fibers are shown in Table 2d. Both the spinneret hole and the spinning process have adopted the conditions in the invention, and the fiber shape and performance have reached the conditions in the invention.

[0087] Table 2a. Spinning hole size of Example 2

[0088] project

parameters

The ratio of the height to the upper base of the smallest circumscribed trapezoid T of leaf A(C)

1.5

The ratio of the height to the upper base of the smallest circumscribed trapezoid T of leaf B(D)

3.6

The ratio of the height of the smallest circumscribed trapezoid T of ...

Embodiment 3

[0096] The spinneret hole size used is the data shown in Table 3a. PET chips with an intrinsic viscosity of 0.665dl / g are used. The spinning and drawing equipment adopts a common single-screw melt spinning machine and a common hot roller drawing machine. The spinning process parameters are shown in Table 3b, and the drawing process parameters are shown in Table 3c. The properties of the fibers are shown in Table 3d. Both the spinneret hole and the spinning process have adopted the conditions in the invention, and the fiber shape and performance have reached the conditions in the invention.

[0097] Table 3a. Spinning hole size of Example 3

[0098]

[0099] The spinning process parameter of table 3b. embodiment 3

[0100] condition

parameters

Spinning temperature °C

281

Spinning speed m / min

3000

Number of spinneret holes

96

blowing method

outer ring blow

Blowing speed m / s

0.5

The distance between ...

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Abstract

The invention relates to a profiled fiber and a spinneret plate and a preparation method thereof. The cross section of the fiber is in an approximately axisymmetric long cross shape and is divided into a long blade B1, a long blade D1, a short blade A1 and a short blade C1, wherein the long blade B1 and the long blade D1 are respectively provided with a middle section H the width of which is approximately constant and a slightly narrow blade tail end R, and the length ratio w5:w6 of the long blade B1 and the long blade D1 is 1-5:1; the ratio of the length w2 of the long blade B1 or the long blade D1 to the width w1 of the long blade B1 or the long blade D1 is 1.1-5:1; the ratio of the length w4 of the short blade A1 or the short blade C1 to the width w3 of the widest part of the short blade A1 or the short blade C1 is 0.5-2:1; and the ratio of the length w2 of the short blade B1 or the long blade D1 to the length w4 of the short blade A1 or the short blade C1 is 1.5-8:1. The fiber has a moisture transfer quick drying function, and meanwhile, the fiber can have an antibiotic function, an anti-ultraviolet function and an antistatic function.

Description

technical field [0001] The invention relates to textile technology, which is a fiber manufacturing technology and its products, specifically, a spinneret for preparing special-shaped cross-section fibers and the produced special-shaped cross-section fibers. Background technique [0002] Due to the presence of grooves, fibers with special-shaped cross-sections with a multi-groove structure have better moisture absorption and perspiration effects than fibers with round cross-sections. They are welcomed by high-quality clothing fabrics, and the added value of fibers is higher. The excellent properties of fine denier and micro-denier fibers are also the driving force behind the increasing pursuit of fine denier for various functional fibers, such as anti-ultraviolet, antibacterial, and antistatic fibers. It can be seen that the combination of special-shaped cross-section, fine denier and functionalization will undoubtedly increase the overall value of the fiber, and has a broad ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/253D01D5/26
Inventor 李健李鑫刘玉来俞炜周骥
Owner CHINESE TEXTILE ACAD
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