Polyester cotton-like yarn-dyed fabric, and manufacturing method and application thereof

Abstract

Disclosed are a polyester cotton-like yarn-dyed fabric, and a manufacturing method and application thereof. The polyester cotton-like yarn-dyed fabric is interwoven by warp and weft, the warp adopts dyed polyester as a covering layer and low-temperature spandex as a core-spun yarn of a core yarn, a weight ratio of the polyester to the low-temperature spandex is 4-49:1, and the polyester is subjected to alkali deweighting treatment to form an eroded surface. The polyester cotton-like yarn-dyed fabric has good cotton feeling, high elasticity, high color fastness and low ironing shrinkage rate, and is suitable for making high-quality clothing, especially shirts. The manufacturing method of the yarn-dyed fabric is energy-saving and emission-reducing, and can manufacture a novel polyester yarn-dyed fabric with low ironing shrinkage rate, high color fastness and cotton-like hand feeling. Use of the yarn-dyed fabric for making clothing such as shirts increases the selectivity and functionality.

1 - 28 . (canceled) 
     
     
         29 . A polyester cotton-like yarn-dyed fabric, interwoven by warp and weft, wherein the warp adopts dyed polyester as a covering layer and low-temperature spandex as a core-spun yarn of a core yarn, a weight ratio of the polyester to the low-temperature spandex is 4-49:1, and the polyester is subjected to alkali deweighting treatment to form an eroded surface. 
     
     
         30 . The yarn-dyed fabric according to  claim 29 , wherein a fineness of the low-temperature spandex is 20D-40D, and the core-spun yarn is made of polyester and low-temperature spandex by a machine packaging process with a twist of 5-8 twist/cm and a draw ratio of 2.5-3.5. 
     
     
         31 . The yarn-dyed fabric according to  claim 29 , wherein a deweighting rate of alkali deweighting treatment carried out on the polyester is not higher than 5%. 
     
     
         32 . The yarn-dyed fabric according to  claim 29 , wherein the polyester is selected from at least one of polyester filament, polyester composite fiber and polyester staple fiber;
 wherein the polyester filament is selected from at least one of draw textured yarn DTY, fully drawn yarn FDY, air textured yarn ATY and high stretch yarn; the polyester composite fiber comprises elastic composite polyester fiber T400; the polyester staple fiber comprises cotton-like polyester.   
     
     
         33 . The yarn-dyed fabric according to  claim 29 , wherein the polyester is polyester with an F number not lower than 24. 
     
     
         34 . The yarn-dyed fabric according to  claim 29 , wherein a dye used for dyeing the polyester is a disperse dye with high temperature resistance, washing resistance and alkali resistance, and a dyeing temperature of the dye is 130±5° C. 
     
     
         35 . The yarn-dyed fabric according to  claim 29 , wherein a color fastness of the yarn-dyed fabric measured according to GB/T3920-2008 is not lower than grade 4. 
     
     
         36 . The yarn-dyed fabric according to  claim 35 , wherein the color fastness of the yarn-dyed fabric measured according to GB/T3920-2008 is not lower than grade 5. 
     
     
         37 . The yarn-dyed fabric according to  claim 29 , wherein an ironing shrinkage rate of the yarn-dyed fabric treated for 6 times at 170° C. and for 15 s is not higher than 3%. 
     
     
         38 . A manufacturing method of the polyester cotton-like yarn-dyed fabric according to  claim 29 , comprising the following steps:
 1) interweaving provided weft and sized warp to obtain a coarse yarn-dyed fabric;   2) first desizing: performing continuous desizing on the coarse yarn-dyed fabric by a desizing mixed solution I, wherein a temperature of the first desizing is 91-91.5° C. and a time of the first desizing is not more than 20 min, and the desizing mixed solution I comprises 2-3 wt % of strong alkali and 2-3 wt % of desizing agent;   3) pre-setting: enabling a temperature of pre-setting to be 180-200° C.;   4) second desizing: performing intermittent desizing by a desizing mixed solution II, wherein a temperature of the second desizing is 60-90° C. and a time of the second desizing is not more than 45 min, and the desizing mixed solution II comprises 2-5 wt % of strong alkali and 2-5 wt % of sodium hydrosulfite; and   5) setting: enabling a temperature of setting to be 100-140° C., so as to obtain the yarn-dyed fabric;   wherein, the warp comprises dyed polyester yarns as a covering layer and low-temperature spandex as a core-spun yarn of a core yarn; a size for the sizing comprises acrylic size.   
     
     
         39 . The manufacturing method of the yarn-dyed fabric according to  claim 38 , wherein a dye used in the dyed polyester is a disperse dye with high temperature resistance, water resistance and alkali resistance;
 and a dyeing temperature is 130±5° C.   
     
     
         40 . The manufacturing method of the yarn-dyed fabric according to  claim 38 , wherein a fineness of the low-temperature spandex is 20D-40D, and the core-spun yarn is made of polyester and low-temperature spandex by a machine packaging process with a twist of 5-8 twist/cm and a draw ratio of 2.5-3.5. 
     
     
         41 . The manufacturing method of the yarn-dyed fabric according to  claim 38 , wherein a temperature of the sizing is 130±5° C.; and
 a concentration of the size is 10-15 wt %, and a speed of sizing is 40-50 m/min. 
 
     
     
         42 . The manufacturing method of the yarn-dyed fabric according to  claim 38 , wherein the continuous desizing is desizing with a continuous process desizing machine, the temperature of the first desizing is 91° C., the speed of desizing is 40-50 m/min, and the time of the first desizing is not more than 15 min. 
     
     
         43 . The manufacturing method of the yarn-dyed fabric according to  claim 38 , wherein a speed of the pre-setting is 30-40 m/min; and
 a speed of the setting is 30-50 m/min.   
     
     
         44 . The manufacturing method of the yarn-dyed fabric according to  claim 38 , wherein the intermittent desizing is in-jigger washing, the temperature of the second desizing is 70° C., and the time of the second desizing is not more than 45 min, and the desizing mixed solution II comprises 4-5 wt % of strong alkali and 4-5 wt % of sodium hydrosulfite. 
     
     
         45 . The manufacturing method of the yarn-dyed fabric according to  claim 38 , wherein a pre-setting auxiliary agent I is added during the pre-setting, and the pre-setting auxiliary agent I comprises a dry hand feeling auxiliary agent and acetic acid;
 wherein the dry hand feeling auxiliary agent comprises an antibacterial auxiliary agent.   
     
     
         46 . The manufacturing method of the yarn-dyed fabric according to  claim 45 , wherein the antibacterial auxiliary agent is a zinc ion antibacterial agent;
 a setting auxiliary agent II is added during the setting, and the setting auxiliary agent II comprises a smooth hand feeling auxiliary agent;   wherein the smooth hand feeling auxiliary agent comprises a moisture absorption and perspiration agent and/or a softening agent.   
     
     
         47 . Clothing, wherein the clothing is made from a yarn-dyed fabric, and the yarn-dyed fabric is selected from at least one of the yarn-dyed fabrics described in  claim 29 . 
     
     
         48 . A manufacturing method of the yarn-dyed fabric according to  claim 47 , wherein the clothing is a shirt.