Abstract: The present invention relates to time-temperature indicator (TTI) systems comprising indolenin based spiropyrans containing a cyclohexyl residue of formula (I), a method of manufacturing the time temperature indicator system, and a method of determining the time temperature history of perishable goods using the system. Moreover, the invention relates to a matrix selected from a printing ink or printing ink concentrate, paint, varnish, label, packaging material, and polymeric material comprising the system.

Abstract: The present invention is directed to 2-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxo-propyl]azo]-benzoic acid (C.I. Pigment Yellow 151): (I), characterized by a ?E* (black/white) in masstone below 22.0±0.7, a process for its preparation and its use for pigmenting macromolecular organic materials of natural or synthetic origin. The pigment has high opacity and high color strength.

Abstract: The present invention relates to compositions such as coatings, printing inks or cosmetics, which contain pigments comprising or consisting of a layer made of a material with an index of refraction that is higher than the index of refraction of the adjacent material by at least 0.25; whereas said layer has a zero-order diffractive micro-structure; whereas said layer acts as an optical waveguide and whereas said layer has a thickness between 50 nm and 500 nm; to processes for its manufacture and to its use. These pigments show a colour effect upon rotation and/or tilting, and it is believed that this colour effect is based on zero-order diffraction.

Abstract: The present invention is in the field of security documents, more particularly in the field of security elements aimed to protect security documents against copying (illegal reproduction) and counterfeiting. It discloses a security element having a coating layer(s) which changes its visual appearance after irradiation with light, especially with UV light and reverts back to the original state within a few seconds. Security documents comprising said security element, as well as a method for producing said security element, are also disclosed.

Abstract: The present invention relates to a method of printing a substrate, comprising (a) printing onto the substrate at least one time temperature indicator with chromic properties based on an azo coupling reaction between a capped diazonium component and a coupling component.

Abstract: A time temperature indicator for indicating temperature change over time is provided, comprising an immobilized enzyme and a substrate of the enzyme, wherein the reaction of the substrate catalyzed by the enzyme produces a reaction product in a time and temperature dependent manner and wherein the formation of the reaction product can be detected by monitoring a physical characteristic of the substrate and/or the product which is linked to its concentration. Also provided is a method of time temperature indication comprising the step of an enzyme-catalyzed reaction, a method of printing the enzyme-based time temperature indicator on a packaging material or a label, a printing ink or printing ink concentrate comprising components of the enzyme-based time temperature indicator and a packaging material or a label comprising the enzyme-based time temperature indicator.

Abstract: The present invention relates to an indicator system comprising (a) an indicator system comprising a) a photo- or thermochromic indicator compound and b) a luminescent colorant which increases the color difference of the color change of the reagent by at least 0.5 units.

Abstract: The present invention relates to a time temperature indicator for indicating temperature change over time, comprising an immobilized enzyme and a substrate of the enzyme, wherein the reaction of the substrate catalyzed by the enzyme produces a reaction product in a time and temperature dependent manner and wherein the formation of the reaction product can be detected by monitoring a physical characteristic of the substrate and/or the product which is linked to its concentration. The invention further relates to a method of time temperature indication comprising the step of an enzyme-catalyzed reaction, a method of printing the enzyme-based time temperature indicator on a packaging material or a label, a printing ink or printing ink concentrate comprising components of the enzyme-based time temperature indicator and a packaging material or a label comprising the enzyme-based time temperature indicator.

Abstract: The invention relates to novel inorganic brighteners, a process for their preparation and their use for brightening substrates. More specifically, the novel inorganic brighteners are phosphors characterized in that they have (i) an absorption maximum in the range of from 350 to 375 nm; (ii) a steep decrease of the absorption band near 400 nm; (iii) a quantum yield of the phosphorescence of at least 0.8; and (iv) a phosphorescence maximum in the range between 415 and 445 nm.

Abstract: The present invention is directed to 2-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxo-propyl]azo]-benzoic acid (C.I. Pigment Yellow 151): (I), characterized by a ?E* (black/white) in masstone below 22.0±0.7, a process for its preparation and its use for pigmenting macromolecular organic materials of natural or synthetic origin. The pigment has high opacity and high color strength.

Abstract: The present invention is directed to SiOy flakes with 0.70?y?1.95, especially 0.70?y?1.80, very especially 1.0?y?1.8, comprising reactive centres, a process for their production, and their use for providing chemically modified SiOy flakes.

Abstract: The present invention relates to luminescent SiOz, flakes, especially porous luminescent SiOz flakes, wherein 0.70?z?2.0, especially 0.95?z?2.0, comprising an organic, or inorganic luminescent compound, or composition, which can provide enhanced (long term) luminescent efficacy.

Abstract: The present invention relates to a method of printing a substrate, comprising (a) printing onto the substrate at least one time temperature indicator with chromic properties based on an azo coupling reaction between a capped diazonium component and a coupling component.

Abstract: Reactive dyes of formula wherein A is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan or dioxazine chromophore, R1, R2 and R3 are each hydrogen or unsubstituted or substituted C1-C4alkyl, X1 and X2 are halogen, B is an organic bridging member, T is a reactive radical as defined herein and V1 and V2 are each independently of the other N, C—H, C—Cl or C—F, give prints that are distinguished by brilliant color shades and good all-round properties.

Abstract: Reactive dyes of formula 1

Abstract: A method of printing cellulosic fiber materials in which the fiber material is brought into contact with reactive dyes of formula: wherein A is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan or dioxazine chromophore, R1, R2 and R3 are each independently of the others hydrogen or unsubstituted or substituted C1-C4alkyl, X1 and X2 are halogen, B is an organic bridging member, T is a reactive radical of formula: R4 is hydrogen, C1-C4alkyl unsubstituted or substituted by hydroxy, sulfo, sulfato, carboxy or by cyano, or a radical  wherein R5 is as defined hereinbelow, R5 is hydrogen, hydroxy, sulfo, sulfato, carboxy, cyano, halogen, C1-C4alkoxycarbonyl, C1-C4alkanoyloxy, carbamoyl or a group —SO2—Y, R6 is hydrogen or C1-C4alkyl, alk and alk1 are each independently of the other linear or branched C1-C6alkylene, arylene is an unsubstituted or sulfo-, carboxy-, hydroxy-, C1-C4alkyl-, C1-C4al

Abstract: Reactive dyes of the formula (1) in which R1, R2, R3 and R4 independently of one another are hydrogen or substituted or unsubstituted C1-C4alkyl, (R5)0-2 and (R6)0-2 independently of one another are 0 to 2 identical or different substituents from the group consisting of C1-C4alkyl, C1-C4alkoxy, C2-C4alkanoylamino, halogen, carboxyl, sulfo, carbamoyl, N-C1-C4alkylcarbamoyl, N,N-di-C1-C4alkylcarbamoyl, C1-C4alkylsulfonyl, sulfamoyl, N-C1-C4alkylsulfamoyl and N,N-di-C1-C4alkylsulfamoyl, A is hydrogen or C1-C4alkyl which is unsubstituted or substituted by hydroxyl, sulfo, carboxyl or sulfato, phenyl or naphthyl which are unsubstituted or substituted by C1-C4alkyl, C1-C4alkoxy, C2-C4alkanoylamino, hydroxyl, carboxyl, carbamoyl, sulfo or halogen, phenyl-C1-C4alkylene which is unsubstituted or substituted in the phenyl ring by C1-C4alkyl, C1-C4alkoxy, C2-C4alkanoylamino, hydroxyl, carboxyl, sulfo, carbamoyl, ureido or halogen, or C5-C7cycloalkyl which is unsubstituted or substituted by C1-C4alky

Abstract: A method of printing cellulosic fiber materials in which the fiber material is brought into contact with reactive dyes of formula 1

Abstract: Reactive dyes of formula (1) wherein R1, R2, R3 and R4 are each independently of the others hydrogen or unsubstituted or substituted C1-C4alkyl, X1 and X2 are halogen, B is a C2-C12alkylene radical which may be interrupted by 1, 2 or 3 —O— members and is unsubstituted or substituted by hydroxy, A is a formazan radical of formula (2) or (3) D is a radical of formula (4) or (5)  wherein m, n and R5 are as defined in the claims are suitable especially for dyeing or printing hydroxy-group-containing or nitrogen-containing fiber materials. Olive-green dyeings are obtained having good fastness properties and a high tinctorial yield.

Abstract: Dye mixtures comprising at least one compound of the formula ##STR1## and at least one compound of the formula ##STR2## in which the variables are as defined in the claims,which are suitable as fibre-reactive dyes for dyeing widely varying fibre materials, are described.