US2023167589A1PendingUtilityA1

Water-repelling fabric, and textile product

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Assignee: TEIJIN FRONTIER CO LTDPriority: Apr 21, 2020Filed: Apr 14, 2021Published: Jun 1, 2023
Est. expiryApr 21, 2040(~13.8 yrs left)· nominal 20-yr term from priority
D06M 2200/12D06M 15/643D06M 15/423D06M 15/277D06M 15/263D02G 3/32D03D 15/527D03D 15/33D10B 2331/04D03D 15/573D10B 2401/061D10B 2501/00D10B 2401/063D01D 5/32D01D 5/34D03D 15/283D01F 8/14D10B 2401/062D03D 13/008D10B 2401/021D03D 15/47D03D 15/56D03D 15/292
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Claims

Abstract

The invention addresses the problem of providing a water-repellent cloth that is excellent in water repellency as well as stretchability and also a textile product using the water-repellent cloth. A means for resolution is a water-repellent cloth given water repellent processing, and the cloth is configured to include a composite yarn containing a stretch fiber and an ultrafine fiber having a single fiber fineness of 1 dtex or less.

Claims

exact text as granted — not AI-modified
1 . A water-repellent cloth given water repellent processing,
 the water-repellent cloth being characterized in that the cloth includes a composite yarn containing a stretch fiber and an ultrafine fiber having a single fiber fineness of 1 dtex or less.   
     
     
         2 . The water-repellent cloth according to  claim 1 , wherein the stretch fiber is a conjugate fiber made of two components joined in a side-by-side manner or an eccentric sheath-core manner or is a polytrimethylene terephthalate fiber. 
     
     
         3 . The water-repellent cloth according to  claim 1 , wherein the cloth is a woven fabric having a cover factor CF of 1,000 or more,
 the cover factor CF being defined by the following formula:
   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)].   
     
     
         4 . The water-repellent cloth according to  claim 1 , wherein a surface of the cloth has formed thereon fine fiber loops composed of the ultrafine fiber. 
     
     
         5 . The water-repellent cloth according to  claim 1 , wherein a surface of the cloth has a water-repellent roll-off angle of 15° or less. 
     
     
         6 . The water-repellent cloth according to  claim 1 , wherein the degree of water repellency measured in accordance with JIS L1092-2009 7.2, Test for Resistance to Surface Wetting (Spray Method), is Level 4 or higher. 
     
     
         7 . The water-repellent cloth according to  claim 1 , wherein after 10 washes as specified in JIS L0217-1995 (using the JAFET standard combination detergent), the degree of water repellency measured in accordance with JIS L1092-2009 7.2, Test for Resistance to Surface Wetting (Spray Method), is Level 3 or higher. 
     
     
         8 . The water-repellent cloth according to  claim 1 , wherein the stretchability in the warp direction or the weft direction measured in accordance with JIS L1096-2010 8.16, B Method, is 10% or more. 
     
     
         9 . The water-repellent cloth according to  claim 1 , wherein the recovery of stretchability in the warp direction or the weft direction measured in accordance with JIS L1096-2010 8.16, B-1 Method, is 85% or more. 
     
     
         10 . The water-repellent cloth according to  claim 1 , wherein the tear strength in the warp direction or the weft direction measured in accordance with JIS L1096-2010 8.17, D Method, is 7 N or more. 
     
     
         11 . A textile product comprising the water-repellent cloth according to  claim 1 . 
     
     
         12 . The water-repellent cloth according to  claim 2 , wherein the cloth is a woven fabric having a cover factor CF of 1,000 or more,
 the cover factor CF being defined by the following formula:
   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)].

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