Title:
METHOD FOR PRODUCING FIBER MATERIAL, AND FIBER MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/187426
Kind Code:
A1
Abstract:
The present invention provides a method for producing a fiber material, said method being capable of performing a scouring treatment without using sodium hydroxide that is strongly alkaline, while being also capable of performing the scouring treatment and a bleaching treatment at the same time in a single bath. A method for producing a fiber material that contains at least one kind of fibers selected from among natural fibers and regenerated cellulose fibers, said method comprising: preparation of a fiber material that is to be subjected to a scouring treatment and a bleaching treatment; and treatment of the fiber material with a treatment liquid that has an initial pH of from 9 to 11, while containing (1) a chelating agent, (2) a surfactant, (3) a bleaching agent, and (4) an alkali treatment agent that does not contain sodium hydroxide.
Inventors:
YAMADA MASAHIKO (JP)
KUBO MASAHIKO (JP)
FUKUDA MIZUKI (JP)
KUBO MASAHIKO (JP)
FUKUDA MIZUKI (JP)
Application Number:
PCT/JP2021/010403
Publication Date:
September 23, 2021
Filing Date:
March 15, 2021
Export Citation:
Assignee:
DAIWA SPINNING CO LTD (JP)
International Classes:
D06L1/12; D06L4/13; D06M11/00; D06M13/332; D06M101/06
Foreign References:
| JPS4957164A | 1974-06-03 | |||
| CN1526875A | 2004-09-08 | |||
| CN104264491A | 2015-01-07 | |||
| CN102797146A | 2012-11-28 | |||
| CN103061104A | 2013-04-24 | |||
| CN108277658A | 2018-07-13 | |||
| JP2007084947A | 2007-04-05 | |||
| JP2017510721A | 2017-04-13 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
Download PDF: