| http://www.w3.org/ns/prov#value | - As to the thickener, for example, one or more selected from water-soluble polymers such as carboxymethyl cellulose, sodium carboxymethyl cellulose, hydroxypropyl cellulose, polyvinyl alcohol, polyglutamic acid and its salts, and polyaspartic acid and its salts, etc. are proposed.
|
