Method of producing fabric with improved shrink and crease resistance utilizing an enzyme composition and a polymeric resin composition
CA 2470052 C · Owner: Guangdong Esquel Textiles Co. Ltd. · Inventors: Zhang, Yu-Gao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Embodiments of the invention provide a method for manufacturing woven or knit fabrics with improved shrink and crease resistance and good shape memory after repeated washing. The method comprises (a) contacting an enzyme treatment composition with a cellulosic material (e.g. cotton fabric) the enzyme , composition comprising an enzyme; and (b) treating the cellulosic material with a polymeric resin composition. Embodiments of the invention also provide a fabric manufactured by sequentially treating the fabric with an enzyme composition and a resin treatment agent.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed January 17, 2003 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 17, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.