Ciba Specialty Chemicals Corporation

Ciba-geigy Corporation

Superba

Mickael Mheidle

Peter Scheibli

Roger Lacroix

Robert Enderlin

Didier Thibault

Stefan Koller

Véronique Hall-Goulle

Roland Bauhofer

Marc Burglin

B&eacute;n&eacute;dicte Gal&eacute;a

The invention relates to an ink composition containing (a) a compound of formula (I), L&#x2212;Ln(Ch)(I), wherein Ln represents a lanthanide, CHis a negatively charged ligand containing at least one UV absorbing double bond, n denotes 3 or 4, m denotes a number from 1 to 4, in case n is 3, m denotes a number from 1 to 4 and L is a neutral monodentate or polydentate nitrogen-, oxygen- or sulfur-containing UV absorbing ligand with the exception of 2,2'-bipyridyl or, in case n is 4, m denotes 1 and L is a single-charged cation; and (b) a liquid ink carrier, which can be used for applying hidden mark on objects which can only be revealed under UV exposure.

Ink compositions containing lanthanide complexes

The invention relates to a method for printing fibrous textile materials using the ink-jet printing technique, wherein the fibrous materials are printed with an aqueous ink that comprises at least one acid dye according to claim 1 and that has a viscosity of from 1 to 40 mPa&middot;s.

Method for printing fibrous textile materials using the ink jet technique

Method for printing fibrous textile materials according to the ink jet printing technique

The invention relates to a process for printing textile fibre materials by the ink-jet printing process, wherein the fibre materials are printed with an aqueous ink comprising at least one disperse dye, an anionic copolymer and/or a nonionic block polymer and/or a dispersant, and to the inks comprising these components.

Process for ink-jet printing textile fibre materials

The present invention relates to a process for the continuous dyeing of cellulose fibre yarns with reactive dyes and to an apparatus for carrying out this process. The process essentially comprises steps of impregnating yarn which has been continuously unwound at high speed from one or several supports (1) and rewound onto one or several supports (3) with at least one fibre-reactive dye in aqueous solution and at least one alkaline reagent in aqueous solution, and fixing the dye. The invention can be applied especially in the technical field of dyeing cellulose fibres.

Apparatus for carrying out a process for the continuous dyeing of yarns

Disclosed is a process for printing fibre material with reactive dyes, which comprises the fibre material to be printed first being treated with an aqueous alkaline liquor, optionally dried and then printed with a print paste comprising at least one reactive dye, a thickener and optionally further additives with the exception of an alkali or an alkali donor.

Printing of fibre materials

A process for printing textile fiber materials in accordance with the ink-jet printing process, wherein the fiber materials are printed with an aqueous ink comprising a) at least one reactive dye of formulae (1a) to (1i) as indicated herein and b) 1,2-propylene glycol or N-methyl-2-pyrrolidone. The process is especially suitable for printing cellulosic fiber materials. The prints obtained have good fastness properties while having a high color yield.

Process for printing textile fibre materials in accordance with the

A process for printing textile fiber materials in accordance with the inkjet printing process, wherein the fiber materials are printed with an aqueous ink, comprising

The present invention relates to a process for the continuous dyeing of cellulose fiber yarns with reactive dyes and to an apparatus for carrying out this process. The process essentially comprises steps of impregnating yarn which has been continuously unwound at high speed from one or several supports (1) and rewound onto one or several supports (3) with at least one fiber-reactive dye in aqueous solution and at least one alkaline reagent in aqueous solution, and fixing the dye. The invention can be applied especially in the technical field of dyeing cellulose fibers.

Process for the continuous dyeing of yarns with reactive dyes and

A process for printing textile fiber materials in accordance with the ink-jet printing process, wherein the fiber materials are printed with an aqueous ink comprising a) at least one reactive dye of formula ##STR1## or at least one reactive dye of formula ##STR2## wherein the substituents are as defined in claim 1, and b) a water-soluble, non-ionic cellulose ether or an alginate.

Process for printing textile fiber materials in accordance with the

A substrate capable of being wound is transported to a substrate carrier and wound onto the latter. For that purpose the substrate is first held in a defined storage position. With the substrate in that storage position the substrate carrier is moved into a threading position and brought into engagement with the substrate. The substrate is then automatically threaded around the substrate carrier. When the threading operation is complete, the substrate carrier is moved into a winding position in which the substrate is wound onto the substrate carrier. The rate of feed at which the substrate is transported by a motor to the substrate carrier is regulatable. The substrate carrier is motor-driven in a controllable manner, at a uniform torque and in dependence on the feed rate at which the substrate is transported to the substrate carrier. When the winding operation is complete the substrate is cut and the end of the substrate belonging to the winding is automatically fixed to the winding, while the other end of the substrate is again held in the defined storage position.

Method and apparatus for winding substrates that are capable of being

An apparatus (1) for metering dry and pulverulent pourable material, for example dye powder in a laboratory dyeing line for textiles, the apparatus (1) having a discharge container (8) which has a closable outlet (9) in its lower region, scales (10) for metering the amount of material that is to be conveyed from the outlet (9) of the container (8), with outlet (9) being arranged on the underside of the container (8) and having as closure a valve body (12) that tapers towards the top and can be displaced vertically downwards, the valve body (12) being drivable in rotation and rotating while it is in its open position and having the capability for conveying the material in the direction towards the outlet opening (14), therefore performing a dual function.

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Sausheim, France

Mickael Mheidle