HIDE PROCESSING METHODS AND COMPOSITIONS
    1.
    发明公开
    HIDE PROCESSING METHODS AND COMPOSITIONS 审中-公开
    VERFAHREN UND ZUSAMMENSETZUNGEN ZUR VERARBEITUNG VONTIERHÄUTEN

    公开(公告)号:EP2601316A1

    公开(公告)日:2013-06-12

    申请号:EP10855559.0

    申请日:2010-11-09

    IPC分类号: C14C1/06 C12R1/385

    摘要: The invention relates to a rawhide dehairing process comprising contacting a rawhide with a solution including a lipase and/or a protease for a predetermined amount of time, wherein the pH of the solution is substantially neutral, and removing hair from the rawhide. The invention also relates to cultures comprising enzyme-secreting Pseudomonas aeruginosa strains A/C2 and B/GZN.

    摘要翻译: 本文部分提供了包含分离的微生物酶的组合物,例如可用于脱皮皮革的蛋白酶,脂肪酶。 还提供了用于从微生物中分离蛋白酶,脂肪酶的方法,以及在环境友好过程中多次循环使用这些酶的方法。

    ENZYMATIC UNHAIRING AGENT FOR USE IN TANNING FOR PRODUCING LEATHER AND METHOD FOR ENZYMATIC UNHAIRING TREATMENT
    2.
    发明授权
    ENZYMATIC UNHAIRING AGENT FOR USE IN TANNING FOR PRODUCING LEATHER AND METHOD FOR ENZYMATIC UNHAIRING TREATMENT 有权
    酶法脱毛FOR USE制革为酶法ENTHAARUNGSBEHANDLUNG皮革生产及方法

    公开(公告)号:EP1304389B1

    公开(公告)日:2008-04-16

    申请号:EP00979100.5

    申请日:2000-12-05

    申请人: Daiwa Kasei K.K.

    IPC分类号: C14C1/06

    CPC分类号: C14C1/065

    摘要: An enzymatic unhairing agent for use in an unhairing step in the tanning for producing a leather which comprises alkaline protease as an active ingredient; a treatment solution comprising the enzymatic unhairing agent and a pH adjusting agent; a method for enzymatic unhairing treatment in the tanning for producing a leather which comprises contacting a law hide with the treatment solution; and a leather produced by the method. The method can be employed for providing a leather and recovered hairs both of good quality, while markedly reducing the pollution load of an unhairing waste water from the unhairing step.

    ENZYMATIC UNHAIRING AGENT FOR USE IN TANNING FOR PRODUCING LEATHER AND METHOD FOR ENZYMATIC UNHAIRING TREATMENT
    3.
    发明公开
    ENZYMATIC UNHAIRING AGENT FOR USE IN TANNING FOR PRODUCING LEATHER AND METHOD FOR ENZYMATIC UNHAIRING TREATMENT 有权
    酶法脱毛FOR USE制革为酶法ENTHAARUNGSBEHANDLUNG皮革生产及方法

    公开(公告)号:EP1304389A1

    公开(公告)日:2003-04-23

    申请号:EP00979100.5

    申请日:2000-12-05

    IPC分类号: C14C1/06

    CPC分类号: C14C1/065

    摘要: The invention provides an enzymatic unhairing agent for use in an unhairing step in tanning for producing leather comprising an alkaline protease as an active component; a treatment solution comprising a pH-adjusting agent and the enzymatic unhairing agent; a method for enzymatic unhairing treatment in tanning for producing leather comprising contacting the treatment solution with a raw hide or skin; and a leather thus produced. According to the invention, it is attained markedly reduction of the pollution load in the unhairing waste water and leather and recovered hairs both of good quality can be obtained.

    VERFAHREN ZUR HERSTELLUNG VON LEDER
    6.
    发明公开

    公开(公告)号:EP1556523A2

    公开(公告)日:2005-07-27

    申请号:EP03785620.0

    申请日:2003-10-14

    IPC分类号: C14C3/16

    CPC分类号: C14C1/065

    摘要: The invention relates to a method for producing leather, comprising at least two of the following method steps A) to D): A) using one or more polyelectrolytes during the production of semifinished or intermediate products, involving the addition of one or more polyelectrolytes in at least one of steps (a) to (d): (a) together with 0 to 1.5 % by weight of lime, with regard to the weight of salt, immediately before or in the lime pit; (b) before or during deliming; (c) before or during bating; (d) together with, in total, 0 to 3 % by weight of alkaline salt or alkaline earth salt, with regard to the pelt weight, immediately before or in the pickle solution; B) in the lime pit, treating the skins in an aqueous liquor with one or more compounds of general formula (B.1) or with their corresponding alkali metal salts, alkaline earth metal salts, ammonium salts or phosphonium salts, whereby variables R10 and X1 to X4 have the meanings as cited in the description, with the provision that at least two mercapto groups are contained in the compound or compounds B.1; C) using degreasing agents of general formula (C.1) for degreasing pelts, skins or other intermediate stages and semifinished products during the production of leather, whereby variables n and R16 to R21 have the meanings as cited in the description; D) tanning by using a tanning agent that can be produced by reacting at least one aldehyde of general formula (D.1) with at least one other identical or different aldehyde of formula (D.1) in the presence of an acid catalyst and, optionally, in the presence of at least one additional carbonyl compound of formula (D.2), whereby variables Z and R22 to R25 have the meanings as cited in the description, with the provision that, in the event Z corresponds to a chemical single bond or to a radical without α-hydrogen atoms, at least one additional aldehyde of formula (D.1), in which radical Z contains α-hydrogen atoms, or at least one additional carbonyl compound of formula (D.2) is present. The invention also relates to leather that is produced according to the inventive method.

    摘要翻译: 本发明涉及一种用于生产皮革的方法,其包括以下方法步骤A)至D)中的至少两个:A)在半成品或中间产品的生产过程中使用一种或多种聚电解质,包括将一种或多种聚电解质加入 (a)至(d)中的至少一个:(a)在石灰坑之前或之中,与盐重量0-1.5%重量的石灰一起; (b)在除灰之前或期间; (c)在还款前或还款期间; (d)在腌渍溶液之前或在腌渍溶液中,总共含有0至3重量%的碱性盐或碱土盐,就毛皮重量而言; B)在石灰坑中,用一种或多种通式(B.1)的化合物或用它们相应的碱金属盐,碱土金属盐,铵盐或鏻盐处理含水液体中的表皮,由此变量R10和 X1至X4具有在说明书中引用的含义,条件是在一种或多种化合物B.1中包含至少两个巯基; C)使用通式(C.1)的脱脂剂在皮革生产过程中去除毛皮,毛皮或其他中间阶段和半成品,其中变量n和R16至R21具有如说明书中引用的含义; D)通过使用可通过使至少一种通式(D.1)的醛与至少一种其它相同或不同的式(D.1)的醛在酸催化剂存在下反应制备的鞣剂进行鞣制,和 任选地在至少一种式(D.2)的另外的羰基化合物存在下进行,其中变量Z和R22至R25具有如说明书中引用的含义,条件是在Z对应于化学式 单键或没有α-氢原子的基团,至少一种式(D.1)的另外的醛(其中基团Z含有α-氢原子)或至少一种式(D.2)的另外的羰基化合物为 当下。 本发明还涉及根据本发明方法生产的皮革。

    PROCEDE DE PREPARATION D'UN CUIR A PARTIR D'UNE PEAU BRUTE
    8.
    发明公开
    PROCEDE DE PREPARATION D'UN CUIR A PARTIR D'UNE PEAU BRUTE 审中-公开
    从原皮制备皮革的方法

    公开(公告)号:EP3249058A1

    公开(公告)日:2017-11-29

    申请号:EP17169255.1

    申请日:2017-05-03

    IPC分类号: C14C3/08 C14C1/06 C14C1/08

    CPC分类号: C14C3/08 C14C1/065 C14C1/08

    摘要: La présente invention concerne un procédé de préparation d'un cuir à partir d'une peau brute, le procédé étant exempt de chrome, de permanganate et de sulfure. Ce procédé comprend les étapes suivantes :
    - obtention d'une peau brute ;
    - trempe de la peau brute ;
    - épilage-pelanage de la peau trempée, par traitement enzymatique en l'absence de sulfure ;
    - écharnage de la peau résultant de l'épilage-pelanage ;
    - picklage de la peau ;
    - obtention d'un cuir par tannage de la peau issue du picklage en l'absence de chrome ;
    la peau étant une peau d'un animal choisi dans le groupe comprenant les crocodiliens, les serpents et les lézards.
    La présente invention concerne également le crust de cuir susceptible d'être obtenu selon ce procédé ainsi que son utilisation dans le domaine de la maroquinerie ou de l'horlogerie.

    摘要翻译: 本发明涉及由生皮制备皮革的方法,该方法不含铬,高锰酸盐和硫化物。 该过程包括以下步骤: - 获得生皮; - 粗糙皮肤的韧性; - 在不存在硫化物的情况下通过酶处理浸泡的脱皮肤皮肤; - 由于脱毛而产生的皮肤剥落; - 皮肤捡拾; 通过在没有铬的情况下酸洗皮肤而获得皮革; 皮肤是选自鳄鱼,蛇和蜥蜴的动物的皮肤。 本发明还涉及通过该方法可获得的皮革外壳及其在皮革制品或制表领域的应用。