Processing for rendering leather hydrophobic and oleophobic by
impregnation with fluoro chemicals
    1.
    发明授权
    Processing for rendering leather hydrophobic and oleophobic by impregnation with fluoro chemicals 失效
    通过用氟化学品浸渍来提炼皮革疏水性和疏油性的加工

    公开(公告)号:US4971835A

    公开(公告)日:1990-11-20

    申请号:US235037

    申请日:1988-08-22

    CPC classification number: C14C9/00 Y10T428/3154

    Abstract: The leather is treated with a resin, quaternary ammonium compound, amine or polymer before the impregnation with the fluoro chemicals. With these auxiliaries, a uniform effectiveness of the fluoro chemicals which act on the surface is achieved, regardless of the procedure or the chemicals previously introduced into the leather. These auxiliaries can optionally also be applied to the leather together with the fluoro chemicals.

    Abstract translation: 在用氟化学品浸渍之前,用树脂,季铵化合物,胺或聚合物处理皮革。 使用这些助剂,可以实现作用于表面的氟化学品的均匀有效性,而不考虑先前引入皮革的程序或化学品。 这些助剂还可任选地与氟化学品一起应用于皮革。

    Bath pigmentation of leather
    4.
    发明授权
    Bath pigmentation of leather 失效
    皮肤色素沉着

    公开(公告)号:US4914764A

    公开(公告)日:1990-04-10

    申请号:US379574

    申请日:1989-07-12

    CPC classification number: D06P1/44 D06P1/6135 D06P3/32

    Abstract: Process for the bath pigmentation of leather, which comprises dyeing the leather with pigment dispersions which contain a compound of the formula (I) ##STR1## where Ar is benzene or naphthalene,X is --CH.sub.2 --CH.sub.2 -- and/or --CH.sub.2 --CH(CH.sub.3)--,0 to (m-1) of the radicals A are hydrogen,1 to m of the radicals A are benzoyl and/or naphthoyl,1 to m of the radicals A are --CO--CH.dbd.CH--COOM and/or --CO--CH.sub.2 --CH(SO.sub.3 M)--COOM, where M is a cation,R.sup.1, R.sup.2 and R.sup.3 are hydrogen or alkyl of 1 to 14 carbon atoms,R is hydrogen and/or alkyl of 1 to 9 carbon atoms, n is a number from 1 to 150 and m is a number from 2 to 12,The pigment having an average particle size of 50 to 500, preferably 80 to 300, nm. By using these dispersions, which contain the pigments in a very finely divided form, it is possible to obtain thorough penetration of the leather with improved light fastness.

    Abstract translation: 包括用含有式(I)化合物(I)的颜料分散体染色皮革的方法,其中Ar是苯或萘,X是-CH 2 -CH 2 - 和/或 - 基团A的CH 2 -CH(CH 3) - ,0至(m-1)为氢,基团A的1至m为苯甲酰基和/或萘甲酰基,基团A的1至m为-CO-CH = CH -COOM和/或-CO-CH 2 -CH(SO 3 M)-COOM,其中M是阳离子,R 1,R 2和R 3是氢或1至14个碳原子的烷基,R是氢和/或1至9的烷基 碳原子,n为1〜150的数,m为2〜12的数。该颜料的平均粒径为50〜500,优选为80〜300nm。 通过使用含有非常精细分散形式的颜料的这些分散体,可以获得具有改善的耐光性的皮革的彻底渗透。

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