一种浅色多羧基氧化多糖鞣剂及其制备方法和应用

    公开(公告)号:WO2022166201A1

    公开(公告)日:2022-08-11

    申请号:PCT/CN2021/117900

    申请日:2021-09-13

    Applicant: 四川大学

    Abstract: 本发明属于皮革、毛皮鞣剂的技术领域,公开了一种浅色多羧基氧化多糖鞣剂及其制备方法和应用。本发明提供的浅色氧化多糖鞣剂的制备方法,采用了双相溶液体系,与现有的氧化多糖鞣剂制备技术相比,能高效萃取脱除氧化过程中产生的有色物质,及时阻断其与氧化多糖的聚合反应,从而达到显著降低氧化产物色度的效果。同时,本发明使用的催化剂和过氧化氢组成的催化氧化体系可以确保氧化多糖具有足够的羧基含量,与非铬金属盐具有优良的配位能力,使得氧化多糖鞣剂在皮革或毛皮鞣制中具有优良的应用效果。

    METHOD FOR TREATING AN ANIMAL SUBSTRATE
    3.
    发明申请
    METHOD FOR TREATING AN ANIMAL SUBSTRATE 审中-公开
    用于处理动物基质的方法

    公开(公告)号:WO2016051189A1

    公开(公告)日:2016-04-07

    申请号:PCT/GB2015/052879

    申请日:2015-10-01

    Applicant: XEROS LTD

    Abstract: A method for tanning an animal substrate comprising the steps: i)agitating the animal substrate with a chromium-free tanning agent; and ii)agitating the animal substrate with a tanning agent having an oxazolidine group; wherein at least some of the agitation is performed in the presence of a solid particulate material having an average particle size of from 1 to 500mm.

    Abstract translation: 一种鞣制动物基质的方法,包括以下步骤:i)用无铬鞣剂搅拌动物基质; 和ii)用具有恶唑烷基团的鞣剂搅拌动物基质; 其中至少一些搅拌在平均粒度为1至500mm的固体颗粒材料的存在下进行。

    LEATHER TANNING
    4.
    发明申请
    LEATHER TANNING 审中-公开
    皮革鞣制

    公开(公告)号:WO01009392A1

    公开(公告)日:2001-02-08

    申请号:PCT/EP2000/007140

    申请日:2000-07-26

    CPC classification number: C14C3/08

    Abstract: Skins are tanned by (1) impregnating them with a THP salt at a pH below that required to cause substantial conversion of the salt to THP (e.g. below 4); (2) contacting the impregnated skins with a nitrogenous compound such as urea or melamine which is capable of copolymerising with THP; and (3) raising the pH sufficiently to effect substantial conversion of the THP salt to THP (e.g. 4.5 to 7).

    Abstract translation: 通过(1)在低于使盐剧烈转化为THP所需的pH(例如低于4)所需的pH下,用THP盐浸渍皮肤,将皮肤鞣制; (2)使浸渍的皮肤与能够与THP共聚的含氮化合物如脲或三聚氰胺接触; 和(3)充分提高pH以使THP盐显着转化为THP(例如4.5至7)。

    PROCESS FOR TANNING LEATHERS WITH TRIAZINE DERIVATIVES
    6.
    发明申请
    PROCESS FOR TANNING LEATHERS WITH TRIAZINE DERIVATIVES 审中-公开
    用三嗪衍生物鞣制皮革的方法

    公开(公告)号:WO2015044971A2

    公开(公告)日:2015-04-02

    申请号:PCT/IT2014/000226

    申请日:2014-08-27

    CPC classification number: C14C3/08

    Abstract: Process for tanning leathers with triazine derivatives comprising at least the steps of transforming a raw animal skin into a de-calcined leather, placing the de- calcined leather in a container with water at room temperature, rotating said container, adding a triazine derivative, dissolved in water, in a concentration ranging between 5.5% and 22%, with respect to the pelt weight, or adding water soluble condensing agents, and draining and washing in water.

    Abstract translation: 用三嗪衍生物鞣制皮革的方法至少包括以下步骤:将生动物皮肤转化为脱煅烧皮革,将煅烧过的皮革置于室温下的带有水的容器中,使所述皮革 容器中,相对于毛皮重量,加入溶解在水中的三嗪衍生物,浓度范围为5.5%至22%,或加入水溶性缩合剂,并排干并在水中洗涤。

    VERFAHREN ZUR HERSTELLUNG VON LEDER
    8.
    发明申请
    VERFAHREN ZUR HERSTELLUNG VON LEDER 审中-公开
    用于生产皮革

    公开(公告)号:WO2011158168A1

    公开(公告)日:2011-12-22

    申请号:PCT/IB2011/052561

    申请日:2011-06-14

    CPC classification number: C14C3/08

    Abstract: Verfahren zur Herstellung von Leder, dadurch gekennzeichnet, dass man Halbzeuge oder Blößen in wässriger Flotte behandelt mit einer Mischung von (A) mindestens einem Alkoxylat von mindestens einem Triazin mit mindestens zwei funktionellen Gruppen pro Molekül und (B) mindestens einem Alkoxylat von Ammoniak oder mindestens einer Verbindung mit mindestens zwei funktionellen Gruppen, gewählt aus primären oder sekundären Aminogruppen und Hydroxylgruppen.

    Abstract translation: 一种用于生产皮革的方法,其特征在于,一个半成品或生皮在与(A)的混合物处理的水性液体的每分子具有与(B)至少两个官能团的至少一种三嗪的至少一种氨的烷氧基化物或至少至少一种烷氧基化 具有伯或仲氨基和羟基基团中选出的至少两个官能团的化合物。

    METHOD FOR TANNING OF HIDES BY MEANS OF TANNING AGENTS
    10.
    发明申请
    METHOD FOR TANNING OF HIDES BY MEANS OF TANNING AGENTS 审中-公开
    用于通过TANNING代理进行HIDES扫描的方法

    公开(公告)号:WO0250313A3

    公开(公告)日:2002-09-19

    申请号:PCT/DK0100848

    申请日:2001-12-20

    CPC classification number: C14C3/08

    Abstract: The method for tanning of hides by means of tanning agents in a tanning bath is characterized by the fact that the bath besides the hides comprises a laccase derived from Myceliophthora , and as tanning agent an aromatic compound and possibly other compounds which are able to react with the hides and/or the aromatic compound, and that an oxidation agent is introduced into the equilibrated tanning bath. In this manner it is possible to increase the degree of fixation considerably in comparison to the prior art methods of this kind.

    Abstract translation: 在鞣制浴中通过鞣剂鞣制皮革的方法的特征在于除了皮革之外的浴还包含源自丝霉菌的漆酶,以及作为鞣剂的芳香族化合物和可能的其它能够与 皮革和/或芳族化合物,并且将氧化剂引入平衡的鞣制浴中。 以这种方式,与现有技术的这种方法相比,可以显着提高固着度。

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