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    • 10. 发明申请
    • PRODUCTION OF TANNED LEATHER AND PRODUCTS SUITABLE THEREFORE
    • 生产适合其的鞣制皮革和产品
    • WO2002059382A1
    • 2002-08-01
    • PCT/IB2002/000231
    • 2002-01-25
    • CLARIANT INTERNATIONAL LTDKITTMER, RoyMA, SongWALKER, Mathew, P.
    • KITTMER, RoyMA, SongWALKER, Mathew, P.
    • C14C3/20
    • C14C3/20C14C3/28
    • The invention provides a process for the production of tanned and optionally retanned leather by treatment of an optionally (pre)tanned animal hide or pelt with an aldehyde-based treatment agent (A), wherein the optionally (pre) tanned animal hide or pelt is treated with (A) an aldehyde-based treatment agent which may e.g. be (F) a tanning aldehyde or an aldehyde-based stability and/or fastness improving agent or (S) an aldehyde-based syntan, and with (H) at least one hydrazine compound which is semicarbazide or aminoguanidine or a salt thereof, which may include semicarbazide or aminoguanidine salts (H S ) of phenolsulphonic acid, napthalene sulphonic acid or naphtholsulphonic acid, in any desired sequence, or is treated with a reaction product (A H ') of (A) with (H¿ S?), or with a reaction product (E S ) of (S) with (H), or with a mixture of (H) with a reaction product (A H ) of (A) with (H), or with a mixture of (H S ) with (A) salts (H S ), their produc tion and use, treatment agents for the production of leather, which are mixtures of (H S ) with (F) or with (S'), or reaction products (E S ) of (S) with (H), or mixtures of (H) with reacti on products (A H ) of (A) with (H), the reaction products (E¿ S?), their compositions, their production and their use.
    • 本发明提供了一种通过用任选的(预先)鞣制的动物皮或皮肤用醛基处理剂(A)处理来制造鞣制和任选的鞣革的方法,其中任选地(预)鞣制的动物皮或毛皮是 用(A)醛基处理剂处理,其可以例如 是(F)鞣制醛或基于醛的稳定性和/或坚牢度改善剂或(S)醛基合成鞣剂,和(H)至少一种作为氨基脲或氨基胍的肼化合物或其盐,其 可以以任何所需的顺序包括苯磺酸,萘磺酸或萘磺酸的氨基脲或氨基胍盐(HS),或者用(A)与(HS)的反应产物(AH')或与反应产物 (H)与(A)与(H)的反应产物(AH)的混合物或(H)与(A)盐的混合物(的)的(S) (HS)与(F)或(S')的混合物,或(S)与(H)的反应产物(ES)的混合物的生产和使用,生产和使用的处理剂, (H)与(A)与(H)的产物(AH)反应的混合物,反应产物(ES),它们的组成,它们的生产及其用途。