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Polymer alloy fiber and fiber structure formed from same

An alloy fiber, polymer technology, applied in the direction of conjugated synthetic polymer rayon, fiber processing, single-component polyolefin rayon, etc., can solve the problem of reduced wear resistance, reduced mechanical properties, compatibility Low problems such as excellent abrasion resistance, suppression of fiber diameter deviation, and suppression of uneven dyeing

Active Publication Date: 2019-05-03
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the compatibility of the composite polymers is low, not only the improvement effect of the polymer alloy cannot be obtained, but also problems such as a decrease in mechanical properties and a decrease in wear resistance are caused.

Method used

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  • Polymer alloy fiber and fiber structure formed from same
  • Polymer alloy fiber and fiber structure formed from same
  • Polymer alloy fiber and fiber structure formed from same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] Add 70 parts by weight of polypropylene (PP) ("Novatec" (registered trademark) MA2 manufactured by Japan Polypropylene Corporation), 28 parts by weight of polyethylene terephthalate (PET) (T701T manufactured by Toray), 2 parts by weight Parts of styrene-ethylene-butylene-styrene copolymer (C) (25 parts by weight of styrene block, ethylene block / butylene block=0.25), using a twin-screw extruder, at a mixing temperature of 280 °C for mixing. After the strands discharged from the twin-screw extruder were cooled with water, they were cut into about 5 mm in length using a pelletizer to obtain pellets. After the obtained pellets were vacuum-dried at 150° C. for 12 hours, they were supplied to an extruder-type melt spinning machine to be melted, and the spinning temperature was 285° C., and the discharge amount was 31.5 g / min. 0.18mm, the length of the discharge hole is 0.23mm, the number of holes is 36, and the circular hole) is discharged to obtain the spun yarn. The spun ...

Embodiment 2～6

[0119] A stretched yarn was produced in the same manner as in Example 1 except that the functional group of the styrene-ethylene-butylene-styrene copolymer (C) was changed as shown in Table 1. Table 1 shows the evaluation results of fiber properties and fabric properties of the obtained fibers.

Embodiment 7～11

[0121] A stretched yarn was produced in the same manner as in Example 5 except that the content of the styrene block (C1) in the styrene-ethylene-butylene-styrene copolymer (C) was changed as shown in Table 2. Table 2 shows the evaluation results of fiber properties and fabric properties of the obtained fibers.

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Abstract

Provided is a polymer alloy fiber that comprises a polyolefin (A), a polyester (B) and a styrene-ethylene-butylene-styrene copolymer (C), and is characterized by the fiber diameter CV% being 0.1 to 2.5% and the dispersion diameter of island components in the fiber cross-sectional surface being 1 to 1000 nm. It is possible to provide a polymer alloy fiber that is provided with the characteristics of both polyolefin and polyester, in which variations in fiber diameter among single threads are suppressed and also dyeing unevenness are suppressed, that has superior mechanical characteristics and abrasion resistance, and that can be suitably used for a fiber structure.

Description

technical field [0001] This invention relates to polymer alloy fibers. More specifically, it relates to a polymer alloy fiber that combines the characteristics of polyolefin and polyester, has suppressed variation in fiber diameter between single yarns, has excellent mechanical properties and abrasion resistance, and has suppressed uneven dyeing , can be suitably used in the form of a fiber structure. Background technique [0002] Polyolefins are excellent in lightness, abrasion resistance, heat retention, and water resistance, and polyesters are excellent in heat resistance, mechanical properties, dyeability, and chemical resistance. Therefore, polyolefins and polyesters are used as fibers, films, etc. The raw materials of molded products such as are widely used. [0003] Composite polymer alloys based on heterogeneous polymers can make use of the advantages of each polymer and compensate for their disadvantages, and thus are an effective method for developing new materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/06D01F8/10D01F8/14
CPCD01F6/46D01F8/06D01F8/10D01F8/14D01D5/34C08L23/12C08L23/20C08L67/02C08L2203/12C08L2205/03
Inventor 鹿野秀和长尾优志望月克彦
Owner TORAY IND INC
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