摘要:
The invention relates to nonwoven fabrics containing polymeric multiple component fibers which include a core component and a plurality of wing components attached to the core. The polymeric core component has an elasticity that is greater than the elasticity of at least one of the wing polymeric components. The fibers assume a spiral twist configuration in which the plurality of wings substantially spiral about the core. In a preferred embodiment, the nonwoven fabrics have elastic stretch and recovery properties with a textile-like hand.
摘要:
The invention provides a woven fabric comprising at least about 18% available stretch in at least a first direction and less than about 5% growth in at least the first direction, wherein the fabric consists essentially of staple fiber yarns in at least the first direction, and wherein the staple fiber yarns comprise poly(ethylene terephthalate) and poly(trimethylene terephthalate) bicomponent staple fiber.
摘要:
Disclosed herein is a process for preparing 4-(2-sulfoethylcyclohexane)-1,2-diol sodium salt, at ambient condition and in the presence of a buffer and an initiator, from vinylcyclohexane-1,2-diol. Also disclosed is a process for preparing 3-(2-sulfoethyl) hexanedioic acid, sodium salt by oxidizing 4-(2-sulfoethylcyclohexane)-1,2 diol sodium salt with hydrogen peroxide in the presence of tungstic acid.
摘要:
The invention provides a stitchbonded nonwoven fabric comprising a nonwoven web, stitches of a first yarn, and stitches of a second yarn wherein the first yarn comprises polyester bicomponent fibers exhibiting latent crimp and comprising poly(ethylene terephthalate) and poly(trimethylene terephthalate). The invention further provides a process for making such stitch-bonded nonwoven fabric.
摘要:
A binder system for applying microcapsules to textile materials includes microcapsules in a binder composition. The binder composition includes: (i) a component selected from the group consisting of: an alkoxylated fatty acid amide, alkyl sulfonate salt, an amino-silicone softener, and mixtures thereof; an (ii) a component selected from the group consisted of: a global type wrinkle resistant resin, an imidazole type wrinkle resistant resin, a cationic polyamide, a curable silicone resin, a polyurethane resin, and mixtures thereof. Methods for making the binder system as well as methods for applying the binder system to textile materials are also provided.
摘要:
Novel aqueous polyurethane dispersions and adhesive films formed therefrom are provided. The aqueous polyurethane dispersions are provided in solvent-free systems of a prepolymer comprising at least one polyether or polyester polyol, a mixture of MDI isomers, and a diol. The adhesive films from such dispersions can be heat-activated for bonding, lamination, and adhesion of textile fabrics, including stretch fabrics.
摘要:
Commercial spandex can be prepared with greater efficiency, improved consistency and at lower costs from a high-solids content polyurethaneurea polymer solution. The polyurethaneurea is prepared using a combination of 4,4′-MDI and 2,4′-MDI, and an amount of chain extenders and chain terminators such that the polymer solution, prior to spinning, is highly soluble and has an appropriate pre-spun IV and primary amine content. Such spandex fibers, and the fabrics and garments comprising them, have good dyeability and colorfastness, as well as other desirable characteristics.
摘要:
Disclosed is a process for the preparation of 1,2-cycloaliphatic diamines from 1,2-aromatic diamines. In one embodiment, the process provides a method for making 1,2-diaminocyclohexane by the reaction of 1,2-phenylenediamine contained in a polar, protic solvent with hydrogen in the presence of a supported rhodium catalyst, ammonia, and an inorganic borohydride, and having enhanced overall conversion and selectivity.
摘要:
A method for preparing stretchable bonded nonwoven fabrics which involves forming a substantially nonbonded nonwoven web of multiple-component continuous filaments or staple fibers which are capable of developing three-dimensional spiral crimp, activating the spiral crimp by heating substantially nonbonded web under free shrinkage conditions during which the nonwoven remains substantially nonbonded, followed by bonding the crimped nonwoven web using an array of discrete mechanical, chemical, or thermal bonds. Nonwoven fabrics prepared according to the method of the current invention have an improved combination of stretch-recovery properties, textile hand and drape compared to multiple-component nonwoven fabrics known in the art.