Manufacturing method of carboxymethyl cellulose nonwoven fabric and use of carboxymethyl cellulose nonwoven fabric manufactured thereby
US9481963B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2013 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Oct 23, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/80
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a manufacturing method of a carboxymethyl cellulose nonwoven fabric which includes the carboxymethylation of cellulose fibers and the subsequent paper-making process to prepare a carboxymethyl cellulose nonwoven fabric. Comparing with the conventional method involving carboxymethylation of a nonwoven fabric, the method of the present invention has convenience and easiness of the process and thus enables production on a large scale. Further, the carboxymethyl cellulose nonwoven fabric manufactured by the present invention is susceptible to gelation upon contact with body fluids or water and thus useful as a medical nonwoven fabric or a mask pack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.