Cloth and protective product

Patent metadata

Field	Value
Publication number	US-2022010467-A1
Application number	US-201917297845-A
Country	US
Kind code	A1
Filing date	Dec 10, 2019
Priority date	Dec 17, 2018
Publication date	Jan 13, 2022
Grant date	—

Abstract

Provided are a cloth and a protective product, which allow for any color appearance and have excellent protection performance against electric arcs. The cloth has a woven fabric structure, wherein a front-surface spun yarn containing an infrared absorber- and/or electrically conductive agent-containing fiber and not containing carbon is located on a front surface, while a back-surface spun yarn containing a carbon-containing fiber is located on a back surface, and the cloth has an ATPV value of 8.0 cal/cm2 or more in Arc Resistance Test ASTM F1959-1999.

First claim

1 . A cloth comprising a woven fabric structure, characterized in that a front-surface spun yarn containing an infrared absorber- and/or electrically conductive agent-containing fiber and not containing carbon is located on a front surface, while a back-surface spun yarn containing a carbon-containing fiber is located on a back surface, and the cloth has an ATPV value of 8.0 cal/cm 2 or more in Arc Resistance Test ASTM F1959-1999.

2 . The cloth according to claim 1 , wherein the front-surface spun yarn is a spun yarn containing a meta-type wholly aromatic polyamide fiber in an amount of 30 to 95 wt %, a para-type wholly aromatic polyamide fiber in an amount of 3 to 40 wt %, and an infrared absorber- and/or electrically conductive agent-containing fiber in an amount of 2 to 30 wt %.

3 . The cloth according to claim 1 , wherein the front-surface spun yarn contains an aromatic polyamide fiber, and the aromatic polyamide fiber and the infrared absorber- and/or electrically conductive agent-containing fiber contain the same dye in each fiber.

4 . The cloth according to claim 1 , wherein the exposure of the back-surface spun yarn on the front surface of the cloth is smaller than the exposure of the front-surface spun yarn on the front surface of the cloth.

5 . The cloth according to claim 4 , wherein the back-surface spun yarn contains carbon in an amount of 0.5 to 50 wt % based on the spun yarn weight.

6 . The cloth according to claim 4 , wherein the back-surface spun yarn includes a carbon-containing meta-type wholly aromatic polyamide fiber and/or para-type wholly aromatic polyamide fiber.

7 . The cloth according to claim 4 , wherein carbon is contained in an amount of more than 3.0 wt % based on the cloth weight.

8 . The cloth according to claim 1 , wherein the front-surface spun yarn contains the infrared absorber-containing fiber in an amount of 10 to 30 wt %.

9 . The cloth according to claim 1 , wherein the front-surface spun yarn contains the electrically conductive agent-containing fiber in an amount of 2 to 20 wt %.

10 . The cloth according to claim 1 , having a breathability specified in JIS L 1096:2010, A Method (Frazier Method), of 10 to 100 cc/cm 2 ·sec.

11 . The cloth according to claim 1 , having a cover factor (CF) defined by the following formula of 1,700 to 3,500:
CF =( DWp/ 1.1) 1/2 ×MWp +( DWf/ 1.1) 1/2 ×MWf [DWp is the warp total fineness (dtex), MWp is the warp weaving density (yarns/2.54 cm), DWf is the weft total fineness (dtex), and MWf is the weft weaving density (yarns/2.54 cm).]

12 . The cloth according to claim 1 , wherein the weight per unit of the cloth specified in JIS L 1096:2010, A Method, is 120 to 260 g/m 2 .

13 . The cloth according to claim 1 , wherein the thickness of the cloth specified in JIS L 1096:2010 is 0.4 to 0.8 mm.

14 . The cloth according to claim 1 , wherein the cloth has a multi-layered structure.

15 . A protective product comprising the cloth according to claim 1 and selected from the group consisting of arc protective garments, flame-proof protective garments, work garments, activity garments, gloves, aprons for protection, and members for protection.

16 . The cloth according to claim 2 , wherein the front-surface spun yarn contains an aromatic polyamide fiber, and the aromatic polyamide fiber and the infrared absorber- and/or electrically conductive agent-containing fiber contain the same dye in each fiber.

Assignees

• Teijin Ltd

Inventors

• Tanaka Kengo
• Iwashita Kenji
• Shimada Hiroki
• Kitamura Atsushi

Classifications

• D03D15/41

  with specific twist · CPC title

• A41D2500/20

  Woven · CPC title

• D03D15/47

  multicomponent, e.g. blended yarns or threads (multicomponent fibres or filaments D03D15/292) · CPC title

• D03D15/513

  heat-resistant or fireproof · CPC title

• D03D15/283

  synthetic polymer-based, e.g. polyamide or polyester fibres (cellulose-based artificial fibres D03D15/225) · CPC title