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Artificial hair fiber

A technology of artificial hair and fiber, applied in the direction of fiber processing, rayon manufacturing, fiber chemical characteristics, etc., can solve the problems of low gloss, low gloss, low gloss grip, spinning, etc., and achieve low gloss Excellent performance and stable spinning effect

Active Publication Date: 2019-12-31
DENKA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with regard to fibers for artificial hair containing polyvinyl chloride-based fibers, there are still no satisfactory designs in terms of low gloss, grip during weaving, and spinnability, and repeated attempts have been made.
[0003] In Patent Document 1, a concave portion is provided on each side of the cross section to achieve low gloss, but this alone is not sufficient
In Patent Document 2, a crosslinked vinyl chloride resin is added to impart low gloss to the vinyl chloride resin, and an alkyl methacrylate is added to improve spinnability, but the low gloss is insufficient in this combination.
In Patent Document 3, it is proposed that the cross-sectional shape is composed of a resin composition composed of a vinyl chloride resin and a cross-linked vinyl chloride resin with a predetermined viscosity-average molecular weight, but the gloss is low. In addition, there is a problem that when knitting the yarn, the yarn slips and it is difficult to knit
[0004] In Patent Document 4, the bulkiness and the ease of weaving of the yarn are imparted to the Y-shape having protrusions in three directions. Reflection occurs on the straight line, so low gloss is not sufficient

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0087] Although an Example and a comparative example are shown below and the specific embodiment of this invention is demonstrated in more detail, this invention is not limited only to this Example.

[0088] Raw materials used in Examples and Comparative Examples are shown below.

[0089] (polyvinyl chloride resin (A))

[0090] A-1: an independent polymer of vinyl chloride, with a viscosity-average degree of polymerization of 500 (TH-500 manufactured by Taiyang Polyvinyl Chloride Co., Ltd.).

[0091] A-2: An independent polymer of vinyl chloride, the viscosity-average degree of polymerization is 1100 (TH-1000 manufactured by Taiyang Polyvinyl Chloride Co., Ltd.).

[0092] A-3: A single polymer of vinyl chloride, with a viscosity-average degree of polymerization of 1350 (TH-1400 manufactured by Taiyang Polyvinyl Chloride Co., Ltd.).

[0093] A-4: An independent polymer of vinyl chloride, the viscosity-average degree of polymerization is 2000 (TH-2800 manufactured by Taiyang P...

Embodiment 2～19、 comparative example 1～10

[0106] Examples 2 to 19 were obtained in the same manner as in Example 1, except that the compounding of the polyvinyl chloride-based resin composition and the cross-sectional shape of the fibers obtained by melt spinning were changed as shown in Tables 1 to 3. Fibers for artificial hair of Examples 1-10.

Embodiment 20、21

[0108] In addition to the length L of the first protrusion 1 , the length L of the second protrusion 2 and the length L of the third protrusion 3 All were set to 78 μm or 75 μm, and the fibers for artificial hair of Examples 20 and 21 were obtained in the same manner as in Example 1.

[0109] [Evaluation]

[0110] About the fiber for artificial hair of an Example and a comparative example, spinnability, low glossiness, and the grip property at the time of weaving were evaluated based on the following evaluation methods and reference|standard. The results are shown in Tables 1-4.

[0111] (1) Spinnability

[0112] While melt spinning was performed to form an undrawn yarn, the state of occurrence of yarn breakage was visually observed and evaluated on a 5-point scale as follows.

[0113] 1: Yarn breakage was 10 to 15 times / 1 hour.

[0114] 2: Yarn breakage was 7 to 9 times / 1 hour.

[0115] 3: Yarn breakage was 4 to 6 times / 1 hour.

[0116] 4: Yarn breakage was 2 to 3 tim...

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Abstract

[Problem] To provide a polyvinyl chloride-type artificial hair fiber that exhibits an excellent low glossiness, is grippable during weaving, and can be stably spun. [Solution] The artificial hair fiber according to the present invention uses a polyvinyl chloride resin composition that contains, in a prescribed proportion, (A) a polyvinyl chloride resin having a viscosity-average degree of polymerization of 450 to 1,700 and (B) a crosslinked vinyl chloride resin having a viscosity-average degree of polymerization for the tetrahydrofuran-soluble component of 1,800 to 2,300, wherein the difference between the viscosity-average degree of polymerization of the polyvinyl chloride resin (A) and the viscosity-average degree of polymerization of the THF-soluble fraction of the crosslinked vinyl chloride resin (B) is in a prescribed range. In addition, the shape of the cross section of the artificial hair fiber has a first projection, a second projection and a third projection, and their lengthand width satisfy a prescribed condition.

Description

technical field [0001] The present invention relates to fibers for artificial hair using a polyvinyl chloride resin composition. 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, with respect to fibers for artificial hair containing polyvinyl chloride-based fibers, there are no satisfactory designs regarding low glossiness, grip during weaving, and spinnability, and repeated attempts have been made. [0003] In Patent Document 1, a concave portion is provided on each side of the cross section to achieve low gloss, but this alone is not sufficient. In Patent Document 2, a crosslinked vinyl chloride resin is added to impart low gloss to the vinyl chloride resin, and an alkyl methacrylate is added to improve spinnability. However, in this combination, the low gloss is insufficient. In Patent Document 3, a proposal is made: a resin co...

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/48A41G3/00A61L27/16A61L27/50C08L27/06
CPCA61L27/16A61L27/50C08L27/06D01F6/48C08L2205/025D01F6/10D01F1/10D01D5/253A41G3/0083D01F1/09D01F1/07C08K3/014C08K5/005A61L2430/18C08L2203/12D10B2503/08
Inventor 赤羽拓也金冈正道久米雅士
Owner DENKA CO LTD
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