US2025109531A1PendingUtilityA1

Towel cloth and manufacturing method thereof

Assignee: IZAWA TOWEL CO LTDPriority: Apr 25, 2023Filed: Apr 19, 2024Published: Apr 3, 2025
Est. expiryApr 25, 2043(~16.7 yrs left)· nominal 20-yr term from priority
Inventors:Shoji Izawa
D10B 2201/02D02G 3/28D06M 11/40D10B 2401/00D02J 1/223D02G 3/02D03D 15/217D10B 2503/00D03D 15/41D03D 27/06D03D 27/08
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Claims

Abstract

There are provided a towel cloth having a favorable uprightness of a pile, having a soft and bulky texture, and having a water absorbency in combination, and a manufacturing method thereof. The towel cloth is configured such that a warp pile yarn is engaged in a warp ground yarn and a weft ground yarn. The warp pile yarn is a siro spun yarn 19, and is a nontwisted or low twisted spun yarn applied with secondary twisting in the opposite direction to the primary twisting direction of a plurality of rovings 12 a and 12 b, namely, the untwisting direction. The twisting habit of primary twisting and migration of primary twisting cause entanglement between fibers. In addition, each fiber is a nontwisted yarn or a low twisted yarn, and hence each constituent fiber is present in a free state. This results in a pile yarn with a favorable uprightness and a soft and bulky texture.

Claims

exact text as granted — not AI-modified
1 . A towel cloth comprising a warp ground yarn, a weft ground yarn, and a warp pile yarn, the warp pile yarn being engaged with the warp ground yarn and the weft ground yarn, wherein
 the warp pile yarn is a siro spun yarn,   the silo spun yarn is a single yarn of a nontwisted or low twisted spun yarn applied with secondary twisting in an opposite direction to a primary twisting direction of a plurality of rovings, namely, in an untwisting direction, and   the siro spun yarn has a twist multiplier K of 0 to 3.0,   where the twist multiplier (K) is calculated by the following equation (Math. 1):   
       
         
           
             
               
                 
                   
                     
                       twist 
                       ⁢ 
                           
                       multiplier 
                       ⁢ 
                          
                       
                         ( 
                         K 
                         ) 
                       
                     
                     = 
                     
                       t 
                       / 
                       
                         √ 
                         S 
                       
                     
                   
                 
                 
                   
                     [ 
                     
                       Math 
                       . 
                           
                       1 
                     
                     ] 
                   
                 
               
             
           
         
         where t: number of twists (twists/25.4 mm), S: cotton count (English cotton count). 
       
     
     
         2 . The towel cloth according to  claim 1 , wherein the siro spun yarn is cotton 100%. 
     
     
         3 . The towel cloth according to  claim 1 , wherein the siro spun yarn is cotton having a micronaire of 4 to 7 μg, and an average fiber length of 28 to 45 mm,
 where the micronaire represents an average mass per inch (25.4 mm), unit: microgram (μg). 
 
     
     
         4 . The towel cloth according to  claim 1 , wherein the siro spun yarn is mercerized. 
     
     
         5 . The towel cloth according to  claim 1 , wherein the siro spun yarn has a cotton count of 8 or more and less than 40. 
     
     
         6 . A method for manufacturing the towel cloth according to  claim 1 , wherein
 the warp pile yarn is a siro spun yarn, and   secondary twisting is applied in an opposite direction to a primary twisting direction of a plurality of rovings aligned in same twisting direction, resulting in one nontwisted or low twisted spun yarn.   
     
     
         7 . The method for manufacturing the towel cloth according to  claim 6 , wherein
 the siro spun yarn is immersed in an alkali aqueous solution in a yarn state to be subjected to a tension treatment, thereby to be mercerized.   
     
     
         8 . The method for manufacturing the towel cloth according to  claim 6 , wherein
 a number of twists of secondary twisting of the siro spun yarn is equal to a number of twists of the primary twisting, or larger than the number of twists of the primary twisting.

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