Method for manufacturing Water Soluble Fabric for Chemical Laces, US Patent No. 4570311
Sample pages
Page 5, at reduced quality. Open the document to read every page in full.
US Patent 4,570,311 (granted 18 February 1986) describes a method of making water-soluble nonwoven fabric for chemical lace. Webs of hot-water-soluble polyvinyl alcohol fibers are intertwined with fluid jets, impregnated with a water-soluble resin, stretched at least 20% across the width, and heat-dried. The resulting fabric has high tensile strength and low widthwise elongation, so embroidery patterns hold their position on the embroidering machine, and it dissolves away in hot water to leave the lace. The document includes the patent text with claims, an example, a one-figure process flow diagram, and a certificate of correction. The scan combines a USPTO database printout and the original printed patent.
- Type
- Patent
- Date
- February 18, 1986
- Language
- English
- Pages
- 10
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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