发明名称 |
Method for the production of microfibrous suede-finish non-woven fabric without using organic solvents |
摘要 |
A method of preparation of microfibrous non-woven fabric of the suede-finish type comprising the steps of: spinning of a bi-component fiber of the "islands in the sea" type in which the "island" comprises a polymer chosen from among those employed in textile applications while the "sea" is a polymer that can dissolve and be removed by means of treatment with water, alkaline or acidic aqueous solutions, with non-polluting organic solvents alone or in aqueous solution; preparing a felt with the bi-component fiber; impregnating the felt with aqueous solution of polyvinylalcohol with reduced solubility in water; removing the "sea" component by treatment with solvents step; impregnating with emulsion or polyurethane dispersion; removing the polyvinylalcohol; and finishing the non-woven fabric obtained.
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申请公布号 |
US2003017773(A1) |
申请公布日期 |
2003.01.23 |
申请号 |
US20020096324 |
申请日期 |
2002.03.12 |
申请人 |
LATINI DAVID;ROMANI GIANNI |
发明人 |
LATINI DAVID;ROMANI GIANNI |
分类号 |
D06N3/00;D06N3/14;(IPC1-7):B32B9/00 |
主分类号 |
D06N3/00 |
代理机构 |
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代理人 |
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主权项 |
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