Polyvinyl chloride fiber reduced in initial coloration

A polyvinyl chloride and fiber-like technology, which is applied in the fields of fiber chemical characteristics, textiles and papermaking, single-component halogenated hydrocarbon artificial filaments, etc., can solve the problems of high coloring, lack of vivid color, and reduced commodity value. Achieve high product value, excellent transparency, and less initial coloration

Inactive Publication Date: 2007-09-05
KANEKA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] As a stabilizer for vinyl chloride, there are currently heavy metal stabilizers (such as Pb, Cd, Ba) and organic Sn stabilizers, but the former has safety problems, and the latter is expensive and exists due to malate, mercapto ( mercapto) caused by the problem of odor, etc.
[0003] Therefore, metal soap-based stabilizers centered on Ca-Zn have been gradually used in recent years (see Patent Documents 1 and 2). However, the effect of preventing initial coloration by this mixed system is insufficient. In the application of mixing chlorinated vinyl chloride resin because of its high initial coloring property, it will turn yellow during processing. In order to eliminate this yellowing, even if the color is supplemented with a blue colorant, the so-called "darkness ( somberness)", the brightness is reduced, so there is a problem that the vividness of the color tone is lacking, and the commercial value as artificial hair is significantly reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～9 and comparative example 1～5

[0052] In a 20-liter Henschel mixer, 6 kg of vinyl chloride resins and 100 parts by weight of chlorinated vinyl chloride resins shown in Table 1 below, each compounding agent and a prescribed common compounding agent were put into a 20-liter Henschel mixer, and after stirring and mixing, the The cross-sectional area of ​​the installation hole in the extruder is 0.1mm 2 1. A nozzle with 120 holes is extruded under the condition of good spinnability at a barrel temperature of 150-190°C and a nozzle temperature of 180±15°C. Heat treatment is performed for about 0.5 to 1.5 seconds in a cylinder (conditions for good spinnability in an atmosphere of 200 to 300° C.), and spinning is performed by the first drawing roll. Then, it was stretched to 3 times by passing through a hot air circulation box at 110° C. between the second stretching roll. Then, it is wound between two pairs of conical rollers installed in a box whose temperature is adjusted to 110° C., and a relaxation treatment...

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Abstract

Polyvinyl chloride fibers having satisfactory transparency and reduced in initial coloration although the fibers are ones formed from a composition comprising a vinyl chloride resin and a chlorinated vinyl chloride resin in combination in order to obtain heat-resistant polyvinyl chloride fibers and containing a metal soap stabilizer. The invention is characterized by adding a specific amount of a ss-diketone to a composition which comprises a combination of a vinyl chloride resin and a chlorinated vinyl chloride resin and has been stabilized with a stabilizer comprising a metal soap and a hydrotalcite.

Description

technical field [0001] The present invention relates to a polyvinyl chloride-based fiber for artificial hair having good transparency and excellent colorability with little initial coloration. Background technique [0002] As a stabilizer for vinyl chloride, there are currently heavy metal stabilizers (such as Pb, Cd, Ba) and organic Sn stabilizers, but the former has safety problems, and the latter is expensive and exists due to malate, mercapto ( mercapto) caused by the problem of odor, etc. [0003] Therefore, metal soap-based stabilizers centered on Ca-Zn have been gradually used in recent years (see Patent Documents 1 and 2). However, the effect of preventing initial coloration by this mixed system is insufficient. In the application of mixing chlorinated vinyl chloride resin because of its high initial coloring property, it will turn yellow during processing. In order to eliminate this yellowing, even if the color is supplemented with a blue colorant, the so-called "d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/48C08K5/07A41G3/00C08K5/098C08K3/26C08L27/06
CPCC08K5/07A41G3/0083C08K5/098D01F1/10D01F6/48C08L27/06A41G3/00
Inventor 川口敏之大山裕一广瀬敏彦
Owner KANEKA CORP
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