Special purpose fabrics made with core-spun yarns

Abstract

Three fabrics for special technical applications have been made with uniquely engineered corewrap yarns produced by the USDA patented, exclusively licensed^a core-spinning technology. They are: a strong and durable, flame-retardant fabric for military tents which has an almost 100% cotton surface

and contains only 10% ultrastrong, gel-spun polyethylene staple fiber (mostly in the yarn core); a flameretardant, cotton-rich, fiberglass filament-core yarn fabric for protective covering, providing an excellent fire barrier; and an absorbent, yet strong and durable foundation cloth made with cotton covered polyester-core yarn for use in industrial abrasives and sandpapers. SRRC core-spinning

techniques involved and certain mechanical and functional properties of the various core-wrap yarns and fabrics produced have been discussed along with a comparison with the corresponding conventional yarns and fabrics. Results indicate that the fabrics made with custom-engineered core-wrap bi-component

yarns offer superior mechanical and functional properties than the traditional 100% cotton equivalents. Generally, the selected core material, usually a synthetic fiber, provides the required mechanical and functional characteristics, while the cover, which typically is cotton, provides the desired excellent aesthetic, comfort and, especially, substrate (required for application of special

<span style="font-size:14.0pt;line-height:115%;font-family:" times="" new="" roman";="" mso-fareast-font-family:"times="" roman";color:black;mso-ansi-language:en-in;="" mso-fareast-language:en-in;mso-bidi-language:hi"="" lang="EN-IN">chemical finishes and/or adhesives) properties. Unlike the conventional partially-covered, stripsensitive, barberpoled core-spun yarns, the core-wrap yarns produced on the ARS core-spinning systems are truly co-axial, strip-resistant and almost totally covered.</span>