Hoechst Aktiengesellschaft

Dystar Textilfarben Gmbh & Co. Deutschland Kg

Dy Star Textilfarben Gmbh & Co.

Andreas Schrell

Werner H Russ

Andreas Von Der Eltz

Bernd Huber

Thomas Riehm

Michael Meier

Daniele Negri

Ludger Wilbers

Tilo Vaahs

Stefan Meier

Reinhard Doenges

Uwe Mrotzeck

Rudolf Ehrler

Heinz-Georg Kautz

Joachim Clauss

Heinz Georg Kautz

Jimmy G Welborn

Thomas Nauroschat

Erol Ozcan

Alfred Tressel

Hans-Helmut Steuernagel

Described are aqueous solutions comprising sodium hydroxide and potassium carbonate in a molar ratio of 1:1.7 to 1:0.5, which are useful for preparing alkaline dyeing liquors, especially padding liquors, of fiber-reactive dyes for producing dyeings on cellulosic textile material.

Alkaline aqueous solutions and use thereof in processes for dyeing cellulosic textile materials

The present invention relates to apparatus for the wet-processing of textile material, essentially comprising a vessel ( ) comprising a fabric inlet ( ), at least one nozzle ( ) for applying a treatment liquor, an intensive zone ( ) and a fabric outlet ( ), wherein the vessel does not include a scray and has a minimized dead space through accurate fitment of the nozzle ( ) and the intensive zone ( ) into the vessel ( ), and to a process for the wet-processing of textile material in the apparatus.

Apparatus and process for wet-processing of textile material

Process for continuous dyeing of cellulosic circular knits composed of natural or modified hydroxy-containing or natural, modified or synthetic carboxamido-containing fiber materials with water-soluble dyes comprises initially impregnating the material with an aqueous dye solution, optionally comprising auxiliaries, in the course of the dyeing step, reducing the liquor content to 400% by weight, based on weight of fiber, by squeezing means customary for tubular material, and subsequently subjecting the liquor-comprising material to a leveling and fixing step for the dye applied to the material by transporting the rope of material continuously through the machine unit by means of the flowing dyeing liquor at a liquor ratio of up to 10:1.

Process for continuous dyeing of cellulosic circular knits with

Water-soluble etherified starches

Sulfonation of regenerated cellulose with sulfonated polymers and use of

Disclosed are aminated acetate fiber comprising acetylcellulose and one or more water-insoluble quaternary starch ether esters, said starch ether esters containing ester groups of formulae --O--CO--CH.sub.3 and/or --O--CO--C.sub.2 H.sub.5 and ether groups of the general formula I

Aminated acetate fiber

A dyeing process comprises continuous dyeing of cellulosic circular knit, which comprises impregnating a rope of said circular knit with an aqueous liquor comprising one or more dissolved and/or dispersed dyes, any necessary fixing alkali and optionally further assistants at a temperature between 20 and 95.degree. C., squeezing off said impregnated rope and subsequently feeding said squeezed-off rope without intermediary drying into an apparatus in which said rope is opened out into a crease-free state and said dye is fixed in an unsaturated steam/air mixture which is at 100 to 160.degree. C. at an autogenous wet temperature of the moist rope of between 50 and 95.degree. C. and a fixing time of at least 20 seconds.

Process and apparatus for continuous dyeing of cellulosic circular knits

Cellullosic textile materials are dyed by a pad or spraying process using a solution which contains 5-100 g/l of inorganic polyphosphate and has a pH of 10-13.5.

Alkali system for dyeing cellulosic textiles by padding methods

Aminated cellulosic synthetic fibers are produced by adding an amine-substituted cellulose derivative to a viscose or an alkali cellulose and spinning fibers by the viscose spinning process, or by adding said cellulose derivative to a cellulose solution and spinning fibers from said solution.

Aminated cellulosic synthetic fibers

Spin dyeing process with dyeing salts

UV-active regenerated cellulose fiber Luminescent regenerated cellulose fiber comprising one or more inorganic luminophors selected from the group consisting of the phosphates, tungstates, oxides, silicates and aluminates of the alkaline earth metals, of the subgroup elements or of the rare earths and the halides of the alkali and alkaline earth metals doped with one or more activators selected from the group consisting of Mn.sup.2+, Mn.sup.4+, Sb.sup.3+, Sn.sup.2+, Pb.sup.2+, Cu.sup.+, Ag.sup.+ and the rare earths.

UV-active regenerated cellulose fiber

Water-soluble polysaccharides which contain

Process for the preparation of water-soluble aminoalkyl derivatives of

A 5% strength by weight to saturated aqueous solution of N-(2-sulfatoethyl)piperazine sulfate, having a pH of between 4 and 0, can be used to modify fiber material.

Liquid formulation of N-(2-sulfatoethyl)piperazine sulfate

Fiber materials can be modified by applying heterocycloaliphatic compounds containing at least one primary, secondary or tertiary amino group or quaternary ammonium group, the hetero portion of which in the ring is a carbonic ester radical of the formula --O--CO--O-- or a carbamic acid radical of the formula --O--CO--NH--, in aqueous alkaline solution by exposing the fiber material to these compounds at a temperature of between 60.degree. and 230.degree. C. The characteristic of the modified fiber material is that it can be dyed with dye solutions of water-soluble, anionic textile dyes which are low in electrolytes or entirely free of electrolytes and/or are low in alkali or entirely free of alkali. The advantage of a dyeing process carried out in this manner, in particular for fiber-reactive dyes, is that fixation of the dyes under alkaline conditions is unnecessary.

Growing community of inventors

Frankfurt am Main, Germany

Andreas Schrell