US2023257912A1PendingUtilityA1

Highly absorbent composite fibre, highly absorbent non-woven fabric, and article comprising same

Assignee: TORAY ADVANCED MAT KOREA INCPriority: Oct 16, 2020Filed: Apr 14, 2023Published: Aug 17, 2023
Est. expiryOct 16, 2040(~14.2 yrs left)· nominal 20-yr term from priority
D04H 1/43828D04H 1/5412D01F 8/06D01F 8/10D10B 2321/02D10B 2321/06D10B 2401/04D10B 2401/022D10B 2509/00A45D 44/00D01D 5/34D04H 1/4291D04H 1/4382A45D 44/002D04H 3/007D04H 3/147D10B 2321/022D01F 6/04D01F 1/10
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Claims

Abstract

Disclosed are a highly absorbent composite fiber, a highly absorbent non-woven fabric, and an article including the non-woven fabric. The disclosed highly absorbent composite fiber includes: a core including a polyolefin-based resin; and a sheath including ethylene vinyl alcohol (EVOH) resin.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A composite fiber comprising:
 a core comprising a polyolefin-based resin; and a sheath comprising ethylene vinyl alcohol (EVOH) resin.   
     
     
         2 . The composite fiber of  claim 1 , wherein in the composite fiber, a weight ratio of the core to the sheath is about 50 to 90:about 10 to 50. 
     
     
         3 . The composite fiber of  claim 1 , wherein in the composite fiber, a melting index of the sheath is about 10 g/10 min to about 60 g/10 min. 
     
     
         4 . A non-woven fabric comprising a composite fiber according to  claim 1 . 
     
     
         5 . The non-woven fabric of  claim 4 , having a moisture absorption rate of about 550% to about 1,500% and a thermal conductivity of about 0.1 W/m·K or more. 
     
     
         6 . An article comprising a non-woven fabric of  claim 4 . 
     
     
         7 . The article of  claim 6 , wherein the article is a sanitary material or a cosmetic mask pack.

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