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Manufacturing method of polyvinyl chloride type artificial hair fiber

A polyvinyl chloride and artificial hair technology, applied in the direction of single-component halogenated hydrocarbon artificial filaments, etc., can solve the problems of low gloss, loss of touch of vinyl chloride resin, insufficient low gloss, etc., and achieve low gloss , Excellent gear processability and excellent spinnability

Active Publication Date: 2021-06-22
DENKA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Patent Document 2 discloses a method of adding a crosslinked vinyl chloride resin to impart low gloss to the vinyl chloride resin and adding an alkyl methacrylate to improve spinnability. However, under such a combination , still has the problem of insufficient low gloss and loss of touch characteristic of vinyl chloride resin

Method used

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  • Manufacturing method of polyvinyl chloride type artificial hair fiber
  • Manufacturing method of polyvinyl chloride type artificial hair fiber
  • Manufacturing method of polyvinyl chloride type artificial hair fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] 90 parts by mass of polyvinyl chloride resin (A) (TH-500 manufactured by Taiyo Vinyl Corporation), 10 parts by mass of cross-linked vinyl chloride resin (B) (GR-2500S manufactured by Shin-Etsu Chemical Co., Ltd.), antistatic 0.5 parts by mass of additive (New Elegan ASK manufactured by NOF Corporation), 3 parts by mass of hydrotalcite composite heat stabilizer (CP-410A manufactured by Nissan Chemical Industries, Ltd.), epoxidized soybean oil (Asahi Denka Chemical Industry Co., Ltd. A vinyl chloride-based resin composition made of 0.5 parts by mass of O-130P) and 0.8 parts by mass of an ester-based lubricant (EW-100 manufactured by Riken Vitamin Co., Ltd.) was mixed in a ribbon mixer, and the cylinder temperature was used. The range is 130-170°C, and the extruder with a diameter of 40mm performs raw material mixing to produce pellets. The secondary wheelbase of the section using the weak shaft is 5.0×10 －4 mm 4 1. X-type nozzle with 120 holes, the cylinder temperature ...

Embodiment 2～17、 comparative example 1～7

[0077] Tables 1-3 summarize the combinations and evaluation results of Examples 2-17 and Comparative Examples 1-7.

[0078] 【Table 1】

[0079]

[0080] 【Table 2】

[0081]

[0082] 【table 3】

[0083]

[0084] The materials in Tables 1 to 3 are as follows.

[0085] Polyvinyl chloride resin (A)

[0086] Viscosity average degree of polymerization: 500 (manufactured by Taiyo Vinyl Corporation, TH-500)

[0087] Viscosity average degree of polymerization: 1100 (manufactured by Taiyo Vinyl Corporation, TH-1000)

[0088] Viscosity average degree of polymerization: 1350 (manufactured by Taiyo Vinyl Corporation, TH-1400)

[0089] Viscosity average degree of polymerization: 2000 (manufactured by Taiyo Vinyl Corporation, TH-2800)

[0090] Cross-linked vinyl chloride resin (B)

[0091] Viscosity average degree of polymerization of THF-soluble components: 1600 (manufactured by Shin-Etsu Chemical Co., Ltd., GR-1300T)

[0092] Viscosity average degree of polymerization of THF-...

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Abstract

To provide a method for producing polyvinyl chloride-based artificial hair fibers capable of improving low gloss, weaving properties, and gears while maintaining the feel of fibers composed of polyvinyl chloride-based resin fibers containing cross-linked vinyl chloride-based resins processability and spinnability. According to the present invention, there is provided a method for producing polyvinyl chloride-based artificial hair fibers, which includes the step of spinning a resin composition containing polyvinyl chloride-based resin through a nozzle hole; wherein the resin composition contains polyvinyl chloride-based Resin; the polyvinyl chloride resin contains 90 to 99 parts by mass of polyvinyl chloride resin (A) with a viscosity average degree of polymerization of 450 to 1700, and cross-linked chlorine with a viscosity average degree of polymerization of tetrahydrofuran soluble components of 1800 to 2300. Vinyl resin (B) 10 to 1 mass part; the viscosity average degree of polymerization of the polyvinyl chloride resin (A) and the viscosity average degree of polymerization of the tetrahydrofuran soluble components of the crosslinked vinyl chloride resin (B) The difference is 600 to 1850; the minimum value (Imin) of the secondary axis distance of the section of the axis of the centroid of the cross section passing through the nozzle hole for the nozzle hole is 1×10 ‑4 mm 4 ~15×10 ‑4 mm 4 .

Description

technical field [0001] The present invention relates to a method for producing a polyvinyl chloride-based fiber for artificial hair that has a touch unique to polyvinyl chloride and is excellent in low gloss, weaving property, gear processability and spinnability. Background technique [0002] Polyvinyl chloride-based fibers have excellent strength, elongation, etc., and are widely used as fibers for artificial hair constituting hair accessories. However, regarding low glossiness, weaving property, gear workability, and spinnability, there are still no satisfactory designs, and repeated attempts and improvements are still being made (Patent Documents 1 to 3). [0003] prior art documents [0004] patent documents [0005] Patent Document 1: Japanese Utility Model Patent Publication No. 60-14729 [0006] Patent Document 2: Japanese Patent Laid-Open No. 2000-191871 [0007] Patent Document 3: Publication WO2006 / 093009 Contents of the invention [0008] The problem to be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/48
CPCD01F6/48
Inventor 赤羽拓也堀端笃久米雅士
Owner DENKA CO LTD