The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 1988
Filed:
Sep. 09, 1986
Robert J Harper, Jr, Metairie, LA (US);
Abstract
Process for producing smooth dry-cellulose containing fabrics with durable softness and dyeable properties are disclosed. Cellulose containing fabric is treated with a solution of crosslinking agent, acid catalyst and a longchain alkyl bishydroxyethyl quaternary amine salt additive. The resultant fabric is smooth-dry durably softened and can be dyed. Printdyeing is accomplished by selective application of the alkyl quaternary to a fabric padded with a crosslinking agent. This treatment is then followed by curing and dyeing. Differential dyeing is accomplished by first treating separate yarns with different solutions containing crosslinking agent with and without the alkyl quaternary, drying, knitting, curing and then dyeing the knitted fabric. Multicolored crossdyed cellulosic fabrics which are partly crosslinked are produced by crosslinking preselected areas of fabric with a grafted cationic group and leaving other areas untreated; immersing the fabric in an acidic anionic dyebath to dye the cationic areas and then immersing in a different colored alkaline, reactive dyestuff dyebath to dye the untreated areas.