WO2019200294A1 – October 17, 2019 – STITCHBONDED, WASHABLE NONWOVEN TOWELS AND METHOD FOR MAKING

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Inventors :

LEE, Maxwell, James - 167 Commerce Blvd Suite A, Loveland, OH 45140; BUSCH, Robert, Charles - 167 Commerce Blvd Suite A, Loveland, OH 45140

Owner :

AMTEX INNOVATIONS LLC

Application Number :

WOUS19027283

Document Number :

WO2019200294A1

Priority Date :

April 13, 2018

Filing Date :

April 12, 2019

Date of Grant/ Publication :

October 17, 2019

Class :

A47L13 / 16; D04H1 / 52; D04H1 / 498; D04H1 / 425

Abstract

A stitchbonded washable towel made from a stitchbonded fabric having a cellulosic nonwoven sheet of cellulosic fibers, and an integrated nonwoven sheet of an outer sublayer of wood pulp fibers, and an inner layer of textile fibers substantially entangled with the wood pulp fibers, and confronting the cellulosic nonwoven sheet of cellulosic fibers. The stitchbonded fabric as uses a pattern of stitching yarns that fixes the cellulosic nonwoven sheet to the integrated nonwoven sheet. A post-treatment of the stitchbonded fabric in a heated aqueous solution containing soil release polymer gathers the fabric into the towel, and provides stain and soil re- deposition resistance.

Claim(s)

claim 1: 1. A composite stitchbonded fabric, comprising: a cellulosic nonwoven sheet comprising a nonwoven layer of cellulosic fibers along a technical front of the composite stitchbonded fabric; an integrated integrated nonwoven sheet comprising an outer sublayer of wood pulp fibers and an inner sublayer of textile fibers, wherein the textile fibers of the inner sublayer are entangled with the wood pulp fibers of the outer sublayer to form the integrated nonwoven sheet, the inner sublayer of textile fibers confronts the cellulosic nonwoven sheet, and an outer surface of the outer sublayer wood pulp fibers is along a technical back of the composite stitchbonded fabric; and a pattern of stitching yams that fixes the cellulosic nonwoven sheet to the integrated nonwoven sheet, comprising a plurality of yam overlaps on the technical front of the composite stitchbonded fabric, and a plurality of yarn underlaps on the technical back of the composite stitchbonded fabric.;
claim 2: 21. A method for making a composite stitchbonded fabric, comprising the steps of: a) providing a cellulosic nonwoven sheet comprising a nonwoven layer of textile cellulosic fibers; b) providing an integrated nonwoven sheet comprising an outer sublayer of wood pulp fibers and an inner sublayer of textile fibers, wherein the textile fibers of the inner sublayer are entangled with the wood pulp fibers of the outer sublayer to form the integrated nonwoven sheet, with the inner sublayer of textile fibers providing an inner surface of the integrated nonwoven sheet; c) placing the cellulosic nonwoven sheet over the inner surface of the integrated nonwoven sheet; and d) stitching the cellulosic nonwoven sheet to the integrated nonwoven sheet, to form a linear pattern of overlap wales on a technical front of the composite stitchbonded fabric aligned with the cellulosic nonwoven sheet, and a pattern of crisscrossing yarn underlaps on a technical back of the composite stitchbonded fabric aligned with the wood pulp sublayer of the outer sublayer of the integrated nonwoven sheet.;
claim 3: 32. A stitchbonded washable towel, comprising: i) a gathered cellulosic nonwoven face sheet comprising a nonwoven layer of cellulosic fiber; ii) a gathered integrated nonwoven back sheet comprising an outer sublayer of wood pulp fibers and an inner sublayer of textile fibers that are heavily entangled with the wood pulp fibers of the outer sublayer, with the inner sublayer confronting the cellulosic nonwoven face sheet; and iii) a multiplicity of partially-extendable stitching yams, which fix the gathered cellulosic nonwoven face sheet to the gathered integrated nonwoven back sheet and cause the composite to gather.

Summary

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