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公开(公告)号:DE19940068A1
公开(公告)日:2001-03-01
申请号:DE19940068
申请日:1999-08-24
Applicant: BASF AG
Inventor: SCHNEIDER REINHARD , MAIER PETER , BECKMANN EBERHARD , KARL ULRICH
Abstract: Controlled partial de-coloring of textiles (especially denim) dyed or printed with vat or sulfur dyes comprises treatment with one or more aminoalkane sulfinates at pH 4-7, optionally followed by post-treatment with H2O2. Controlled partial de-coloring of textiles (especially denim) dyed or printed with vat or sulfur dyes comprises treatment with one or more aminoalkane sulfinates of formula R 3-zN(CR R -SO2M)z (I) at pH 4-7, optionally followed by post-treatment with H2O2. z = 1, 2 or 3; R = (a) H, 1-8C alkyl or HOCH2CH2- when z = 1 or 2; (b) as per (a) but also OH when z = 2; or (c) when z = 1 either both are as per (a) or one is as per (a) and the other as per (b); R and R = H or 1-4C alkyl with the total C atoms not more than 4; and M = equivalent of a mono- or di-valent metal.
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公开(公告)号:DE19603401A1
公开(公告)日:1997-08-07
申请号:DE19603401
申请日:1996-01-31
Applicant: BASF AG
Inventor: KRUEGER RUDOLF DR , MAIER PETER
IPC: D06M11/50 , D06M13/402 , D06M13/463 , D06M15/643 , D06P1/22 , D06P1/52 , D06P1/673 , D06P5/02 , D06P5/06 , D06P5/08
Abstract: Stabilisation of ready-made textile goods, which are dyed with vat dyes, against yellowing in air comprises treatment with an aqueous liquor containing peroxide(s) and optionally fabric conditioner and then drying. Also claimed are aqueous liquors for this purpose, which contain peroxide(s) and conditioner(s) in 1:4-4:1 weight ratio.
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公开(公告)号:AU7211300A
公开(公告)日:2000-11-17
申请号:AU7211300
申请日:2000-04-17
Applicant: BASF AG
Inventor: SCHROTT WOLFGANG , GRUND NORBERT , MAIER PETER , SCHNITZER GEORG , SUTSCH FRANZ , BECHTOLD THOMAS , KRUGER RUDOLF
Abstract: From 5 to 60% by weight aqueous alkaline solutions of reduced indigoid dyes are prepared by reducing the indigoid dye electrochemically in the presence of a mediator.
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公开(公告)号:DE19919746A1
公开(公告)日:2000-11-02
申请号:DE19919746
申请日:1999-04-29
Applicant: BASF AG
Inventor: SCHROTT WOLFGANG , GRUND NORBERT , MAIER PETER , SCHNITZER GEORG , SUETSCH FRANZ , BECHTOLD THOMAS , KRUEGER RUDOLF
Abstract: The invention relates to a method for producing 5 to 60 wt. % aqueous alkaline solutions of reduced indigoid dyes by reducing the indigoid dye electrochemically in the presence of a mediator.
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公开(公告)号:DE3720974A1
公开(公告)日:1989-01-05
申请号:DE3720974
申请日:1987-06-25
Applicant: BASF AG
Inventor: BOEHM UDO , MAIER PETER , DOERR KURT DR
IPC: G11B5/84
Abstract: The invention relates to a process for the surface treatment of metallic thin-film magnetic discs, which are provided with carbon protective layers, by polishing with a strip of non-woven fabric moving along a sector of the rotating magnetic disc.
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