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Fabric for protective clothing, and spun yarn for same

A fabric and spinning technology, applied in the spinning field, can solve problems such as wearing comfort, and achieve good dyeability, less carbonization, and good wearing feeling

Inactive Publication Date: 2013-01-16
JAPAN WOOL TEXTILE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the fiber compositions proposed in Patent Documents 1 and 2 also have problems with sweating during work or wearing comfort during hot periods.

Method used

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  • Fabric for protective clothing, and spun yarn for same
  • Fabric for protective clothing, and spun yarn for same
  • Fabric for protective clothing, and spun yarn for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] 1. Fiber used

[0071] (1) Polyetherimide fiber

[0072] The polyetherimide fiber is "ULTEM" manufactured by SABIC INNOVATIVE PLASTICS (limiting oxygen index (LOI) is 32), the single fiber fineness is 3.3 deci tex (3 denier), and the average fiber length is 89mm. Raw cotton is dyed olive green color. As a dyeing machine, a high-pressure dyeing machine manufactured by Nissen Corporation was used, and as dyes and other additives, KAYARON POLYESTER YELLOW FSL (Nippon Kayaku) 3.60% o.w.f., KAYARON RED SSL (Nippon Kayaku) 0.36% o.w.f., and KAYARON POLYESTER BLUE SSL were added (Nippon Kayaku) 1.24% o.w.f., acetic acid (68wt%) 0.0036% o.w.f., sodium acetate 0.0067% o.w.f., dyed at 135°C for 60 minutes.

[0073] (2) wool fiber

[0074] Non-modified wool (average fiber length: 75 mm) of Australian Merino sheep was used as the wool fiber, and it was dyed olive green by a conventional method using an acid dye.

[0075] (3) Para-aramid fiber

[0076] The Teijin Co., Ltd. prod...

Embodiment 2

[0091] In Example 2, it carried out similarly to Example 1 except having made the compounding quantity of the fiber into Table 5.

[0092] table 5

[0093]

[0094] (Remarks 1) The * of the experiment No. indicates a comparative example.

[0095] (Note 2) PEI is the abbreviation of polyetherimide.

[0096] From Table 5, it was confirmed that the fabrics of Examples of the present invention have no thermal shrinkage, have a carbonization length of 10 cm or less, have high heat resistance and flame retardancy, and have good dyeability (appearance).

[0097] On the other hand, the comparative example had the following problems.

[0098] (1) Experiment No. 2-1 was not preferable because it had only polyetherimide fibers and wool, and therefore thermal shrinkage occurred and the carbonization length was long.

[0099] (2) In Experiment No. 2-2, the amount of para-aramid fibers was too small, and thermal shrinkage occurred, which is not preferable.

[0100] (3) From Experimen...

Embodiment 3

[0107] Use 39.5% by mass of flame-retardant rayon, that is, the trade name "Viscose FR" of Austrian Lenzing Company (average fiber length is 75mm, average fineness is 3.3 deci tex) to replace the wool of Example 1, and the spun dyed fabric of Example 1 Raw cotton with 50% by mass of polyetherimide fiber, 10% by mass of para-aramid fiber (pre-spun dyed product) and 0.5% by mass of antistatic fiber was respectively put into the worsted carding machine for fiber opening. Blending is carried out by sliver mixing after the fiber web is formed, and the spinning of double filaments (2 / 44) with a metric count of 44 is made as a warp yarn after the pre-spinning process and the spinning process. Warp and weft are the same product. Table 6 shows the twist direction, twist number, twist coefficient, and yarn count of each yarn.

[0108] Table 6

[0109]

Uniform blend spinning (monofilament)

Uniform blend spinning (double filament)

twist direction

Z

S ...

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Abstract

This heat-resistant, flame-retardant fabric for protective clothing is constituted from a uniform blended spun yarn, and when the fabric contains 100% by mass of the spun yarn, the spun yarn includes 25-75% by mass of a polyetherimide fiber, 20-50% by mass of at least one fiber selected from wool and flame retardant rayon, and 5-25% by mass of a para-aramid fiber. When the fabric is exposed to a heat flux of 80 kW / m2+ / -5% for three seconds in accordance with the ISO 9151 Determination of Heat Transmission on Exposure to Flame test, there is no thermal shrinkage, and in a combustion test in accordance with JIS L 1091A-4, the char length in both the vertical and the horizontal direction is 10 cm or less. Consequently provided are a fabric for protective clothing, and a spun yarn for use therein, said protective clothing remaining comfortable even if the wearer perspires while working or wears the clothing in hot weather, having high heat resistance and flame retardancy, having good dyeability, and low production costs.

Description

technical field [0001] The present invention relates to fabrics for protective clothing and spinning (spun yarns) used therein. Background technique [0002] Protective clothing is used as work clothes for firefighters, first responders, lifeguards, marine rescuers, the military, workers in oil-related facilities, workers in chemical plants, etc. The protective clothing needs to be heat-resistant and flame-retardant, and para-aramid fibers are usually used. However, para-aramid fiber has problems of high cost and difficulty in dyeing. Therefore, the present inventors have proposed a core-sheath spinning in which the core of the core-sheath spinning is stretch-cut spinning using para-aramid fiber, and the sheath is using meta-aramid fiber, flame-retardant acrylic fiber or polyether. Imide fiber (Patent Document 1). Also, Patent Document 2 proposes a blended product of heat-resistant fibers such as para-aramid fibers and carbonized flame-retardant fibers made of flame-retar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/04D02G3/28D03D15/00D03D15/12
CPCD10B2331/021D03D15/12D10B2401/16D10B2211/02D02G3/443D10B2331/06D03D13/008D10B2201/22Y10T428/2936Y10T442/40Y10T442/3976Y10T428/249921D03D15/513
Inventor 高桥雅信大森英城
Owner JAPAN WOOL TEXTILE
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