Multifunctional temperature-adaptable yarn, and preparation method and use thereof

Abstract

The present disclosure relates to the field of textiles, and in particular, to a multifunctional temperature-adaptable yarn, and a preparation method and use thereof. A multifunctional temperature-adaptable yarn is prepared from 20-30% of a temperature-adaptable fiber, 20-30% of an antibacterial fiber, and 40-60% of a cotton fiber in mass percentage by blending. The cotton fiber is a short fiber having a length of 10-50 cm. The multifunctional temperature-adaptable yarn has a linear density of 18-45 tex, a single yarn breaking strength of 12.5-12.8 cN/tex, a single yarn breaking strength coefficient of variation (Cv) of 11.5-12.5%, and a coefficient of variation of mass (CVm) of 11.3-11.4%. The multifunctional temperature-adaptable yarn in the present disclosure is made by blending three types of fibers and thus enabled to have good antibacterial and temperature adaptation properties.

What is claimed is: 
     
         1 . A multifunctional temperature-adaptable yarn, prepared from 20-30% of a temperature-adaptable fiber, 20-30% of an antibacterial fiber and 40-60% of a cotton fiber in mass percentage by blending, wherein the cotton fiber is a short fiber having a length of 10-50 cm; and the multifunctional temperature-adaptable yarn has a linear density of 18-45 tex, a single yarn breaking strength of 12.5-12.8 cN/tex, a single yarn breaking strength coefficient of variation (Cv) of 11.5-12.5%, and a coefficient of variation of mass (CVm) of 11.3-11.4%. 
     
     
         2 . A preparation method of the multifunctional temperature-adaptable yarn according to  claim 1 , comprising the following steps:
 S1, pretreatment of fibers: selecting raw materials temperature-adaptable fiber, antibacterial fiber and cotton fiber in proportions, then wetting the fiber raw materials with an antistatic agent solution for a certain time, and after uniform permeation of the antistatic agent, drying the fiber raw materials until a moisture regain of the temperature-adaptable fiber and the antibacterial fiber is 1-1.5% and a moisture regain of the cotton fiber is 2-4%;   S2, opening and picking: opening and removing impurities from the raw materials temperature-adaptable fiber, antibacterial fiber and cotton fiber, respectively, wherein this step is performed under a relative humidity of 25-45% and a temperature of 22° C. to 30° C.;   S3, wetting: wetting the fiber raw materials after opening and picking so that the moisture regain of the temperature-adaptable fiber and the antibacterial fiber is 2-3% and the moisture regain of the cotton fiber is 6-7%;   S4, mixing and coiling: well mixing the temperature-adaptable fiber, the antibacterial fiber and the cotton fiber into a cotton roll, wherein this step is performed under a relative humidity of 55-70% and a temperature of 25° C. to 38° C.;   S5, carding and slivering;   S6, drawing;   S7, roving;   S8, fine spinning;   S9, winding; and   finally obtaining the multifunctional temperature-adaptable yarn.   
     
     
         3 . The preparation method of the multifunctional temperature-adaptable yarn according to  claim 2 , wherein the time for wetting is 24 hours. 
     
     
         4 . The preparation method of the multifunctional temperature-adaptable yarn according to  claim 3 , wherein in step S4, a beater speed during mixing is 400-460 r/min, and the coiled cotton roll has a specified weight of 100-360 g/m and a length of 25-50 in. 
     
     
         5 . The preparation method of the multifunctional temperature-adaptable yarn according to  claim 3 , wherein in step S5, the cotton roll is carded into mixed card slivers by a carding machine with the following process parameters: a relative air humidity of 55-70%, a cylinder speed of 300-350 r/min, a licker-in speed of 720-780 r/min, a doffer speed of 15-25 r/min, and a specified weight of the mixed card sliver of 20-25 g/5 m. 
     
     
         6 . The preparation method of the multifunctional temperature-adaptable yarn according to  claim 3 , wherein in step S6, the mixed card slivers are prepared into a mixed drawn sliver through three passes of drawing with a relative air humidity of 55-70%; and each pass of drawing is performed with a linear speed of front roller of 160-260 m/min, a roller gauge of 8 mm×6 mm×14 mm, 4-8 mixed card slivers, a total draft multiple of 6.5-10.0, and a specified weight of the mixed drawn sliver of 15-18 g/5 m. 
     
     
         7 . The preparation method of the multifunctional temperature-adaptable yarn according to  claim 3 , wherein in step S7, the mixed drawn sliver is formed into a rove, with a relative air humidity of 55-70%, a spindle speed of 500-800 r/min, a total draft multiple of 7.0-10.0, a specified rove weight of 3-7.5 g/10 m, and a roving twist factor of 80-100. 
     
     
         8 . The preparation method of the multifunctional temperature-adaptable yarn according to  claim 3 , wherein in step S8, the rove is spun into a spun yarn on a spinning frame, with a relative air humidity of 60-70%, a speed of 8000-11000 r/min, a total draft multiple of 16-55, a specified spun yarn weight of 1.1-5.9 g/100 in, and a twist factor of 300-380. 
     
     
         9 . The preparation method of the multifunctional temperature-adaptable yarn according to  claim 3 , wherein in step S9, the spun yarn is wound into a cone yarn on an automatic winder; and during winding, a relative air humidity is 60-70%, and a winding speed is 700-1600 m/min. 
     
     
         10 . A knitted fabric or a woven fabric made from the multifunctional temperature-adaptable yarn according to  claim 1  or a multifunctional temperature-adaptable yarn prepared by the preparation method of the multifunctional temperature-adaptable yarn according to any one of  claims 2 - 9 .