Abstract: An elastic double-knit or interlock fabric of non-elastomeric-elastic yarn which exhibits improved breathability and case of recyclability as compared to conventional elastic double-knit or interlock spandex fabrics, while maintaining the fabric weight and length and width stretch of conventional elastic double-knit or interlock spandex fabrics is provided. Also provided are methods for production of the elastic double-knit or interlock fabric and garments produced from the fabric.

Abstract: Methods for hosiery production and knit hosiery garments produced by these methods are provided which exhibit reduced sheerness difference between the foot portion and leg portion of the garment and assist with correct positioning of the garment during donning, thus improving fit and appearance of the knit hosiery garments.

Abstract: The present invention provides an easy settable stretch fabric comprising three types of yarns: a rigid fiber, an elastic fiber, and a low-melt fiber, wherein the low-melt fiber comprises low-melt polymer which can be fused in the temperature between 60° C. to 200° C.?, being higher than the temperature used for normal textile process and household laundry, but lower than the temperature used for heat setting elastic fiber. The low-melt fiber can be selected from a group of fibers made from modified polyester, nylon, and polypropylene and the copolymer from them in the form of staple or filament.

Abstract: Articles, such as garments, including films comprising dried aqueous polyurethane dispersions are disclosed, whereby the garment has an altered stress which is exhibited during wear of the garment and/or has one or more sections of waterproof or water-resilient fabric. The film may be bonded to the fabric of the article to provide a fabric or film laminate.

Abstract: A method of making polyurethane or polyurethane urea strands containing siloxane in the polyurethane or polyurethane urea backbone including the steps of: (a) reacting a macroglycol with a diisocyanate to form a prepolymer; (b) reacting the prepolymer with a diamine to form a spinning solution; (c) spinning the spinning solution to form polyurethane or polyurethane urea strands, wherein: i. a diol-polydimethylsiloxane is reacted with the macroglycol and the diisocyanate in step (a); ii. a diamine-polydimethylsiloxane is reacted with the prepolymer prior to the reaction of the prepolymer with the diamine in step (b); or iii. a diamine-polydimethylsiloxane is reacted at the same time as the prepolymer and diamine in step (b), and wherein the polyurethane or polyurethane urea strands comprise less than or equal to 6% of siloxane by weight based on the weight of the polyurethane or polyurethane urea strands and elastic fibers made thereby.

Abstract: Included are multiple component elastic fibers prepared by a solution-spinning process such as dry spinning or wet spinner of spandex fibers including polyurethaneurea and polyurethane compositions. These fibers have a cross-section including at least two separate regions with definable boundaries wherein at least one region defined by the boundaries of the cross-section includes a polyurethaneurea or polyurethane composition. One region of the fiber includes a fusibility improvement additive to enhance adhesion to itself or to a substrate.

Abstract: An elastic multiple component fiber comprising a cross-section, wherein at least a first region of said cross-section comprises a polyurethaneurea composition; and comprising a second region.

Abstract: Articles, such as garments, including films comprising dried aqueous polyurethane dispersions are disclosed, whereby the garment has an altered stress which is exhibited during wear of the garment. The film may be bonded to the fabric of the article to provide a fabric or film laminate.

Abstract: A polyurethaneurea composition comprises a reaction product of at least one diisocyanate compound, a polymeric glycol, a poly(tetramethylene-co-ethyleneether) glycol comprising constituent units derived by copolymerizing tetrahydrofuran and ethylene oxide (EO) wherein the portion of the constituent units derived from ethylene oxide is present in the poly(tetramethylene-co-ethyleneether) glycol from greater than about 37 to about 70 mole percent, at least one diamine chain extender, and at least one chain terminator. The invention further relates to the use of blends of polymeric glycols and poly(tetramethylene-co-ethyleneether) glycols as the soft segment base in spandex compositions. The invention also relates to new polyurethane compositions comprising polymeric glycols and poly(tetramethylene-co-ethyleneether) glycols, and their use in spandex.

Abstract: Aqueous polyurethane dispersions, prepolymers for formation of these dispersions, methods for their use in shaping articles, as well as shaping articles produced thereby are provided.

Abstract: Knit structures and processes for constructing knit structures which can be used as a replacement for double layer bands in articles of clothing such as, but not limited to, pantyhose, stockings, stay ups and socks are provided.

Abstract: Included are segmented polyurethane elastic fibers or spandex fibers, capable of bonding to polymer fiber such as nylon or polyamide fibers, in addition to bonding to itself, for apparel textile applications. More particularly the invention relates to bicomponent spandex fibers, with a heat resistant core and a heat sensitive sheath, spun from polymer solutions. The nylon fabrics containing such spandex fibers have enhanced stretch performance and improved surface appearance after heat treatment to activate the fusing and bonding between nylon fibers and spandex fibers.

Abstract: Spandex fiber compositions with reduced grin-through effect are provided. Also provided are methods for production and use of these compositions.

Abstract: A method and system that facilitates the size selection for garments such as hosiery or pantyhose with the aim to improve comfort and fit for the wearer is provided.

Abstract: Knit structures and processes for constructing knit structures which can be used as a replacement for double layer bands in articles of clothing such as, but not limited to, pantyhose, stockings, stay ups and socks are provided.

Abstract: Compositions containing spandex and quaternary amine additives for use in filaments, fiber and articles of manufacture having improved wash fastness when dyed with acid dyes are provided. Methods for production of these compositions are also provided.

Abstract: Processes for steam jet bulking of multicomponent yarns, yarns produced via these processes, packages of wound multicomponent yarns produced via these processes, and stretch fabrics and articles of manufacture of these yarns and stretch fabrics are provided.

Abstract: Methods for improving localized shaping and/or support functionalities, shape retention, comfort and/or stay of apparel and other fabric articles by applying an aqueous polyurethane dispersion at a selected intensity and/or at one or more selected locations of the apparel or other fabric article are provided. Apparel and other fabric articles with improved localized shaping and/or support functionalities, shape retention comfort and/or stay prepared in accordance with these methods are also provided.

Abstract: Included is a stretchable fabric composite laminate, which includes two outer layers of fabric with a bonded inner layer of elastomeric fibers. The stretchable fabric composite laminate is attached to the garment fabric as an edgeband or strap or within an edgeband or strap to provide a more comfortable garment or greater fit range.

Abstract: Polymer compositions and processes for extended glycols and under-capping glycols for production of polymer compositions with engineered hard and soft segment molecular weights are provided. Also provided are fibers and articles of manufacture such as fabrics and garments produced from these polymer compositions and processes.