Sandoz Gmbh

Tibor Robinson

Bruno Kissling

Salvatore Valenti

Jurg Heller

Milica Urosevic

Walter Knobel

Paul Komminoth

Helmut A Moser

Rainer Wolf

Rolf Hasler

Manuel Jose Domingo

Viktor Sanahuja

Brian Acton

Charles Voegtlin

Curt Muller

Pigments (P) obtainable by cationizing desolubilization of (L) the colored leuco form of sulphur dyes and standardization of the desolubilized products and their use, in particular in printing inks.

Pigments, their production and use

A process for flameproofing a substrate comprising applying to the substrate a compound of formula I ##STR1## in which R.sub.1.sup..sym. is a N.sup..sym. cation defined in the Specification and R.sub.2 and R.sub.3 are organic radicals. Substrates to which the compound of formula I can be applied include cellulosic substrates.

Flameproofing compounds

A mixture of a textile auxiliary (T) obtained by reacting epichlorohydrin and ammonia in defined mole ratio, and a polymeric compound (P) which is a water-soluble homopolymer of a mono- or di-allylamine, or a water-soluble copolymer consisting of mono-, di- or tri-allylamine units may be used as an aftertreatment agent for fixation of anionic and sulphur dyeings on cellulosic fibres. The treated dyeings have better fastness properties than dyeings treated with either (T) or (P) alone.

Composition useful for aftertreating dyeings, printings and optical

Cationic fixing agents based on the reaction products of

Cationic polycondensates useful for improving the fastness of dyeings on

Polymeric compounds (A) obtained by the reaction of epihalo-hydrin with a polyalkylene polyamine are useful as textile treatment agents. As pretreatment agents they improve the color yield of the subsequent dyeing, as aftertreatment agents they improve fastness properties. Certain of the products (A) are novel.

Treatment of textile materials to improve the fastness of dyeings made

Aftertreatment of textile fibres which have been optically brightened or dyed or printed with certain direct dyes, or with basic or sulphur dyes, increases wet-fastness properties. The aftertreatment agent is a polymeric, polybasic amino compound, which is applied under alkaline conditions.

Aftertreatment of dyed or printed textiles with a polymeric polybasic

A process for improving the fastness properties of a sulphur dyestuff on a substrate comprising hydroxy group-containing fibres by applying to the dyed or printed substrate the reaction product (R) of

Process for improving fastness of sulphur dyeing on hydroxy group

Dyeings on hydroxy group- or nitrogen-containing fibres are improved by aftertreatment, simultaneously or sequentially, with (A) a polymeric reaction product of an amine with cyanamide, dicyandiamide, quanidine or bisguanidine and (B) a quaternary polyalkylene polyamine. A synergistic effect between (A) and (B) is observed.

After treatment of anionic dyeings, printings and optical brightenings

Polymeric compounds (A) obtained by the reaction of epihalohydrin with a polyalkylene polyamine are useful as textile treatment agents. As pretreatment agents they improve the color yield of the subsequent dyeing, as aftertreatment agents they improve fastness properties. Certain of the products (A) are novel.

Aftertreatment of dyeings on cotton or nylon with (A) a polybasic compound which is the product of reacting a primary or secondary amine with cyanamide, dicyandiamide, guanidine or biguanidine and, sequentially or simultaneously (B) a precondensate formed by reacting a compound of type (A) with an N-methylol derivative gives wet fastness properties superior to those given by either (A) or (B) used alone.

Composition and method for improving the fastness of anionic dyes and

The fastness of direct dyes on cellulose substrates is improved by after-treatment with the reaction product of a quaternary polyalkylene polyamine with an N-methylol resin precursor, and heat curing in the presence of a catalyst. The unfixed portion of reactive dyes substantive to cellulose may also be given improved wet and light fastness by this treatment.

Composition and method for improving the fastness of direct and reactive

The fastness properties of basic dyeings on cellulosic substrates are improved by treating the substrate with a fixing agent comprising a precondensate or mixture of

Method for improving the fastness of dyeings with basic dyes on

A process for accelerating the drying of a wet hydrophilic substrate, e.g. in a washing process, comprising the steps of

Method of accelerating the drying of wet hydropohilic substrates

The wet fastness of direct dyes on cellulose substrates is improved by after-treatment with the reaction product of an amine with cyanamide, dicyanodiamide, guanidine or biguanidine which is further reacted with an N-methylol resin precursor, and heat curing in the presence of a catalyst. The unfixed portion of reactive dyes substantive to cellulose may also be given improved wet fastness by this treatment, so that washing to remove unfixed reactive dye may not be necessary.

Reaction products useful for improving the wetfastness of direct and

The present invention provides a textile finishing process comprising applying to a substrate containing cellulose fibres an aqueous medium comprising

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Basel, Switzerland

Tibor Robinson