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    PROCESS FOR DYEING GRAIN LEATHER
    36.
    发明专利
    PROCESS FOR DYEING GRAIN LEATHER 未知

    公开(公告)号：DE2966862D1

    公开(公告)日：1984-05-03

    申请号：DE2966862

    申请日：1979-12-13

    Applicant: BASF AG

    Inventor： LACH DIETRICH DR DIPL CHEM ,  STREICHER ROLF ,  FEICHTMAYR FRANZ DR DIPL CHEM

    IPC: D06P1/41 ,  D06P1/60 ,  D06P3/32

    Abstract: A process for dyeing grain leather with anionic dyes under the conventional conditions for exhaustion methods, in the presence of two specific surfactants. The combined use of the two surfactants results, in the case of cationically tanned (essentially mineral-tanned) leather, in an improvement in the levelness and dye penetration and in the case of anionically tanned (synthetics-tanned or vegetable-tanned) or retanned leather, in an increase in depth of the color. The two surfactants are (a) an aliphatic alcohol of 9 to 24 carbon atoms oxyethylated with from 3 to 120 ethylene oxide units and (b) an aliphatic amine of 8 to 20 carbon atoms oxyethylated with from 6 to 80 ethylene oxide units, and they are used in a weight ratio of a:b of from 1:4 to 4:1 and in a total amount of from 0.3 to 3%, based on shaved weight.

    AN IMPROVED PROCESS FOR DYEING BOTH CATIONICALLY TANNED AND/OR ANIONIOALLY TANNED GRAIN LEATHER WITH ANIONIC DYES
    37.
    发明专利
    AN IMPROVED PROCESS FOR DYEING BOTH CATIONICALLY TANNED AND/OR ANIONIOALLY TANNED GRAIN LEATHER WITH ANIONIC DYES 未知

    公开(公告)号：IN151944B

    公开(公告)日：1983-09-10

    申请号：IN1339CA1979

    申请日：1979-12-24

    Applicant: BASF AG

    Inventor： LACH DIETRICH ,  STREICHER ROLF ,  FEICHTMAYR FRANZ

    IPC: D06P1/41 ,  D06P1/60 ,  D06P3/32 ,  D06P1/82

    Abstract: A process for dyeing grain leather with anionic dyes under the conventional conditions for exhaustion methods, in the presence of two specific surfactants. The combined use of the two surfactants results, in the case of cationically tanned (essentially mineral-tanned) leather, in an improvement in the levelness and dye penetration and in the case of anionically tanned (synthetics-tanned or vegetable-tanned) or retanned leather, in an increase in depth of the color. The two surfactants are (a) an aliphatic alcohol of 9 to 24 carbon atoms oxyethylated with from 3 to 120 ethylene oxide units and (b) an aliphatic amine of 8 to 20 carbon atoms oxyethylated with from 6 to 80 ethylene oxide units, and they are used in a weight ratio of a:b of from 1:4 to 4:1 and in a total amount of from 0.3 to 3%, based on shaved weight.

    DYEING OF GRAIN LEATHER
    38.
    发明专利
    DYEING OF GRAIN LEATHER 未知

    公开(公告)号：CA1132307A

    公开(公告)日：1982-09-28

    申请号：CA342436

    申请日：1979-12-20

    Applicant: BASF AG

    Inventor： LACH DIETRICH ,  STREICHER ROLF ,  FEICHTMAYR FRANZ

    IPC: D06P1/41 ,  D06P1/60 ,  D06P3/32 ,  C09B67/00

    Abstract: A process for dyeing grain leather with anionic dyes under the conventional conditions for exhaustion methods, in the presence of two specific surfactants. The combined use of the two surfactants results, in the case of cationically tanned (essentially mineral-tanned) leather, in an improvement in the levelness and dye penetration and in the case of anionically tanned (synthetics-tanned or vegetable-tanned) or retanned leather, in an increase in depth of the color. The two surfactants are an aliphatic alcohol of 9 to 24 carbon atoms oxyethylated with from 3 to 120 ethylene oxide units and an aliphatic amine of 8 to 20 carbon atoms oxyethylated with from 6 to 80 ethylene oxide units, and they are used in a weight ratio of a:b of from 1:4 to 4:1 and in a total amount of from 0.3 to 3%, based on shaved weight.

    DYEING OF GRAINED LEATHER
    39.
    发明专利
    DYEING OF GRAINED LEATHER 未知

    公开(公告)号：AU5422779A

    公开(公告)日：1980-07-03

    申请号：AU5422779

    申请日：1979-12-28

    Applicant: BASF AG

    Inventor： LACH DIETRICH ,  STREICHER ROLF ,  FEICHTMAYR FRANZ

    IPC: D06P1/41 ,  D06P1/60 ,  D06P3/32 ,  D06P1/607 ,  D06P1/613 ,  C08L71/02

    Abstract: A process for dyeing grain leather with anionic dyes under the conventional conditions for exhaustion methods, in the presence of two specific surfactants. The combined use of the two surfactants results, in the case of cationically tanned (essentially mineral-tanned) leather, in an improvement in the levelness and dye penetration and in the case of anionically tanned (synthetics-tanned or vegetable-tanned) or retanned leather, in an increase in depth of the color. The two surfactants are (a) an aliphatic alcohol of 9 to 24 carbon atoms oxyethylated with from 3 to 120 ethylene oxide units and (b) an aliphatic amine of 8 to 20 carbon atoms oxyethylated with from 6 to 80 ethylene oxide units, and they are used in a weight ratio of a:b of from 1:4 to 4:1 and in a total amount of from 0.3 to 3%, based on shaved weight.

    40.
    发明专利
    未知

    公开(公告)号：DE2856628B1

    公开(公告)日：1979-08-16

    申请号：DE2856628

    申请日：1978-12-29

    Applicant: BASF AG

    Inventor： LACH DIETRICH DIPL-CHEM DR ,  STREICHER ROLF ,  FEICHTMAYR FRANZ DIPL-CHEM DR

    IPC: D06P1/41 ,  D06P1/60 ,  D06P3/32

    Abstract: A process for dyeing grain leather with anionic dyes under the conventional conditions for exhaustion methods, in the presence of two specific surfactants. The combined use of the two surfactants results, in the case of cationically tanned (essentially mineral-tanned) leather, in an improvement in the levelness and dye penetration and in the case of anionically tanned (synthetics-tanned or vegetable-tanned) or retanned leather, in an increase in depth of the color. The two surfactants are (a) an aliphatic alcohol of 9 to 24 carbon atoms oxyethylated with from 3 to 120 ethylene oxide units and (b) an aliphatic amine of 8 to 20 carbon atoms oxyethylated with from 6 to 80 ethylene oxide units, and they are used in a weight ratio of a:b of from 1:4 to 4:1 and in a total amount of from 0.3 to 3%, based on shaved weight.

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