Title:
MANUFACTURING METHOD OF CARBOXYLIC ACID METAL SALT GRAFTED CELLULOSE FIBER AND MANUFACTURING METHOD OF HYGROSCOPIC HEAT-GENERATING FIBER STRUCTURE
Document Type and Number:
Japanese Patent JP2023150376
Kind Code:
A
Abstract:
To provide a manufacturing method of carboxylic acid metal salt grafted cellulose fiber, which suppresses carboxyl groups introduced into sliver-like cellulose fiber from turning into alkali metal salts such as Na salts having high affinity with water.SOLUTION: A manufacturing method of carboxylic acid metal salt grafted cellulose fiber includes: a grafting step of grafting a carboxyl group-containing compound containing ethylenic unsaturated double bonds onto a sliver-like cellulose fiber to introduce carboxyl groups; and a blocking step of bringing the grafted cellulose fibers into contact with a treatment liquid containing at least one metal ion selected from Ca, Mg, and Zn to convert the carboxyl groups into metal salts thereof.SELECTED DRAWING: Figure 1
Inventors:
YAMAGATA KEISUKE
KOBAYASHI YASUHIRO
MORITA HIROSHI
OSHIMA KUNIHIRO
KOBAYASHI YASUHIRO
MORITA HIROSHI
OSHIMA KUNIHIRO
Application Number:
JP2022059469A
Publication Date:
October 16, 2023
Filing Date:
March 31, 2022
Export Citation:
Assignee:
KURASHIKI BOSEKI KK
International Classes:
D06M14/22; D06M11/155; D06M14/04; D06M15/263
Attorney, Agent or Firm:
Ikeuchi & Partners Patent Attorney Corporation
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