Methods and compositions for cooling yarns and fabrics, and articles comprising same

Abstract

In one aspect, the disclosure relates to composite yarns having a structure comprising a core component and sheath layer, wherein each of the core component and the sheath layer independently comprise a polymer and a disclosed cooling composition. In various further aspects, the present disclosure pertains to double covered yarns comprising an elastic core comprising an elastic core; a first yarn in contact with the elastic core, and wherein the first yarn comprises a disclosed yarn comprising a core component and a sheath layer; and a second yarn in contact with the first yarn, and wherein the second yarn comprises a yarn comprising a cellulosic fiber. In still further aspects, the present disclosure pertains to a fabric, such as a denim fabric. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

1 - 20 . (canceled) 
     
     
         21 . A composite yarn comprising a core component and a sheath layer, wherein:
 (a) the core component comprises a polyester polymer and a first cooling composition; and   (b) the sheath layer comprises a polyamide polymer and a second cooling composition;   wherein the first cooling composition comprises a first cooling compound; and   wherein the second cooling composition comprises a second cooling compound.   
     
     
         22 . The composite yarn of  claim 21 , wherein the first cooling composition comprises about 0.02 wt % to about 0.07 wt % of the first cooling compound; and wherein the wt % is based on the total weight of the polyester polymer and the cooling composition. 
     
     
         23 . The composite yarn of  claim 21 , wherein the first cooling compound comprises a particle; and 
     
     
         24 . The composite yarn of  claim 23 , wherein the particle has a size of about 10 nm to about 100 nm. 
     
     
         25 . The composite yarn of  claim 23 , wherein the particle has a size of about 10 μm to about 200 μm. 
     
     
         26 . The composite yarn of  claim 21 , wherein the first cooling compound comprises magnesium oxide, silicon carbide, silicon dioxide, silicon carbide, silicon dioxide, titanium dioxide, or combinations thereof. 
     
     
         27 . The composite yarn of  claim 21 , wherein the first cooling composition further comprises a first cooling salt selected from a Group II carbonate, a Group II halide, a Group II nitrate, or combinations thereof. 
     
     
         28 . The composite yarn of  claim 21 , wherein the first cooling composition further comprises a first cooling material selected from silver oxide, aluminum oxide, copper oxide, or combinations thereof. 
     
     
         29 . The composite yarn of  claim 21 , wherein the second cooling composition comprises about 1 wt % to about 15 wt % of the second cooling compound; and wherein the wt % is based on the total weight of the polyamide polymer and the cooling composition. 
     
     
         30 . The composite yarn of  claim 21 , wherein the second cooling compound comprises magnesium oxide, silicon carbide, silicon dioxide, silicon carbide, silicon dioxide, titanium dioxide, or combinations thereof. 
     
     
         31 . The composite yarn of  claim 21 , wherein the second cooling composition further comprises a second cooling salt selected from a Group II carbonate, a Group II halide, a Group II nitrate, or combinations thereof. 
     
     
         32 . The composite yarn of  claim 21 , wherein the second cooling composition further comprises a second cooling material selected from silver oxide, aluminum oxide, copper oxide, or combinations thereof. 
     
     
         33 . The composite yarn of  claim 21 , wherein the polyamide polymer is a nylon 6, nylon 4/6, nylon 6/6, nylon 6/10, nylon 6/12, nylon 11, nylon 12, or combinations thereof. 
     
     
         34 . The composite yarn of  claim 21 , wherein the yarn the yarn comprises about 45 wt % to about 55 wt % of the polyester and the first cooling composition, and about 45 wt % to about 55 wt % of the polyamide and the second cooling composition. 
     
     
         35 . A fabric comprising:
 a weft yarn comprising a double-covered yarn; and   a warp yarn comprising cotton fibers;   wherein the double-covered yarn comprises:   (a) an elastic core comprising an elastic yarn;   (b) a first yarn comprising a composite yarn of claim  1 ; and   (c) a second yarn comprising a cellulosic fiber.   
     
     
         36 . The fabric of  claim 35 , wherein the fabric comprises about 50 wt % to about 70 wt % cotton fibers; about 1 wt % to about 15 wt % of a polyester polymer; about 1 wt % to about 10 wt % of a polyamide polymer; and about 0.1 wt % to about 5 wt % of an elastic fiber or elastic filament. 
     
     
         37 . The fabric of  claim 35 , wherein the fabric has a Qmax value of about 0.15 to about 0.50 when determined in accordance with FTTS-FA-019 as specified by Committee of Conformity Assessment of Accreditation and Certification on Functional and Technical Textiles (Taiwan). 
     
     
         38 . The fabric of  claim 35 , wherein the fabric has a Qmax value that is about 20% greater than the Qmax value for a reference denim fabric; wherein the Qmax value is determined in accordance with FTTS-FA-019 as specified by Committee of Conformity Assessment of Accreditation and Certification on Functional and Technical Textiles (Taiwan); and wherein the reference denim fabric consists essentially of cotton yarn, having a fabric weight that is ±10% of the fabric, and the same weave pattern as the fabric. 
     
     
         39 . The fabric of  claim 35 , wherein the fabric has a drying rate of less than about 2.5 ml/hr when determined in accordance with AATCC Test Method 200. 
     
     
         40 . An article of clothing comprising the fabric of  claim 35 .