| 摘要 |
<p>A deodorizing fiber having persistent deodorizing properties, comprising a base material with an acid group content of 0.01 to 2.5 mol/kg-fiber, and bearing an amino compound in an amount of 0.03 to 3 mol/kg-fiber in terms of an amino group through bonding of at least a part of the amino groups to the acid groups. The acid group is a carboxyl or sulfo group, and the amino compound is a water-soluble polyamine having a molecular weight of 1,000 to 200,000. The fiber is prepared preferably by bringing a water-soluble polyamine compound into contact with a wet gel acrylic fiber which has been wet spun and has never been dried and conducting heat treatment preferably at 100 to 180 °C under wet heat conditions. A fiber product prepared by mixing the above fiber with another deodorizing fiber containing anionic functional groups has the effect or removing a composite odor.</p> |
