Abstract: Aqueous leucoindigo solution comprising an aromatic amine, in particular aniline or aniline and N-methylaniline, wherein the concentration of the aromatic amine is below 200 ppm, wherein the leucoindigo salt in the solution is in the form of a mixed sodium and potassium salt, wherein the molar ratio of sodium to potassium is in the range of from above 3:1 to 10:1, preferably wherein the concentration of the salt is in the range of from above 25 to 45% by weight, based on the total weight of the solution.

Abstract: Stable aqueous leucoindigo solution comprising an aromatic amine in the form of aniline or aniline and N-methylaniline, wherein said leucoindigo is in the form of an alkali metal salt; wherein the concentration of the aromatic amine is below 40 ppm determined according to ISO 14362-1:2017(E); and wherein the concentration of the leucoindigo salt is in a concentration range of from 10 to 45% by weight based on the total weight of the solution, and wherein the stability of the solution is measured at a temperature of 23° C.; or wherein the concentration of the leucoindigo salt is in a concentration range of from 45 to 65% by weight based on the total weight of the solution, and wherein the stability of the solution is measured at a temperature of 60° C.

Abstract: The present invention relates to a copolymer comprising at least one hydrophilic monomer; at least one hydrophobic monomer and at least 10% by weight of methyl styrene, particularly suitable to be used as detackifying agent for reducing negative effects caused by natural pitch and/or adhesive contaminants in both pulping and papermaking operations.

Abstract: The invention relates to an optical brightener for whitening and brightening of paper, board, textiles and non-wovens, a process for manufacturing said optical brightener, the use of said brightener in paper making processes and a process for whitening paper.

Abstract: Colorant of formula (I): wherein A signifies a monovalent organic residue comprising a chromophore group; B signifies a bivalent organic residue selected from the class consisting of aromatic, heteroaromatic, cycloaliphatic and aliphatic groups containing from 2 to 10 carbon atoms, optionally substituted; and C signifies the residue of compound comprising at least one amido group, one primary amino group, and one secondary amino group, wherein C is linked to B via a nitrogen atom of an amino group, wherein said compound is a poly(amidoamine).

Abstract: Composition, comprising at least components (A) and (B) and optionally at least one of components (C) to (E): (A) polyacrylate obtained in the polymerisation of components (M1) CH2?CR3COO—R1 with (M2) CH2?CR3COO—R2 and optionally (M3) CH2?CR3—X—R4 (B) wax (C) blocked isocyanate (D) organic polysiloxane; (E) melamine resin; wherein R1 is a residue containing from 1 to 8 carbon atoms; R2 is a residue containing from 9 to 40 carbon atoms; R3=H, CH3, C2H5; X=COO, CONH R4=glycidyl or CH2(CH2)n—OR5, wherein n is an integer in the range of from 1-10 and R5 is H or a residue containing from 1 to 6 carbon atoms; and wherein the composition is based on water and/or an organic solvent and is fluorine-free.

Abstract: Method of making a substrate comprising cellulosic fibres such as paper comprising at least steps (a) and (b): (a) providing an aqueous suspension comprising cellulosic fibres; (b) adding to the suspension provided in step (a) an acrylate copolymer containing carboxyl groups or a salt thereof and ester groups; wherein the acrylate copolymer is the polymerization product of monomers at least selected from an acrylic acid ester of general formula I CH2?CR1—CO2R2 and an acrylic acid of general formula II CH2?CR3—COOH or a salt thereof, wherein R1 and R3 are independently selected from H, CH3, or C2H5; and R2 is a C1-10 alkyl group.

Abstract: Composition, comprising at least components (A) and (B) and optionally at least one of components (C) to (E): (A) a polyacrylate obtained in the polymerisation of monomers (M1) CH2?CR3COO—R1 with (M2) CH2?CR3COO—R2 and optionally (M3) CH2?CR6COO—Y—RF (M4) CH2?CR3—X—R4; (B) a wax; (C) a blocked isocyanate; (D) an organic polysiloxane; (E) a melamine resin.

Abstract: The instant invention relates to liquid compositions comprising derivatives of diaminostilbene, binders and ink fixing agents such as divalent metal salts for the optical brightening of substrates suitable for high quality ink jet printing.

Abstract: Aqueous formulation comprising at least one alcohol A and at least one reaction product C of N,N?-substituted urea and glyoxal, wherein in the reaction product C at least 80 mol % of the hemiaminalic carbon atoms are bound to unetherified hydroxyl groups and wherein said alcohol A is different from reaction product C.

Abstract: Composition, comprising a first component (I) comprising a polyacrylate (A1) and a wax (B), and a second component (II) comprising a polyacrylate (A2), wherein polyacrylate (A1) comprises moieties derived from (meth)acrylic acid ester monomers (M1) and (M2), and optionally (M3), CH2?CR3COO—R1??(M1) CH2?CR3COO—R2??(M2) CH2?CR3—X—R4;??(M3) wherein R1 is the alcohol moiety in monomer (M1) containing from 1 to 8 carbon atoms; R2 is the alcohol moiety in monomer (M2) containing from 9 to 40 carbon atoms; R3 is H, CH3, or C2H5; X is COO or CONH; R4 is glycidyl or CH2(CH2)n—OR5, wherein n is an integer in the range of from 1-10 and R5 is H or a residue containing from 1 to 6 carbon atoms; and polyacrylate (A2) is a fluorine-containing polyacrylate; wherein the composition is based on water and/or an organic solvent.

Abstract: The present invention relates to storage-stable dye salts, solutions and compositions thereof a process for their preparation and their use for dyeing and/or printing substrates.

Abstract: The present invention relates to novel bisazo dyes, a process for their preparation and their use for dyeing and/or printing substrates.

Abstract: Method of making a substrate comprising cellulosic fibres such as paper comprising at least steps (a) and (b): (a) providing an aqueous suspension comprising cellulosic fibres; (b) adding to the suspension provided in step (a) an acrylate copolymer containing carboxyl groups or a salt thereof and ester groups; wherein the acrylate copolymer is the polymerization product of monomers at least selected from an acrylic acid ester of general formula I CH2?CR1—CO2R2 and an acrylic acid of general formula II CH2?CR3—COOH or a salt thereof, wherein R1 and R3 are independently selected from H, CH3, or C2H5; and R2 is a C1-10 alkyl group.

Abstract: A formulation unit for an inkjet printing machine, wherein the inkjet printing machine comprises a printing unit with a printing device and with an ink supply device for supplying ink to the printing device. The formulation unit comprises at least one preparation device for the preparation of ink and at least one storage tank for storing prepared ink.

Abstract: Concentrated storage stable aqueous solutions (S) comprising components (a), (b) and (c), wherein component (a) is at least one optical brightening agent of formula (1), in which the anionic charge on the brightener is balanced by a cationic charge composed of one or more cations selected from the group consisting of hydrogen, alkali metal cation, alkaline earth metal cation, ammonium, ammonium which is mono-, di- or trisubstituted by a C1-4 linear or branched alkyl radical and ammonium which is mono-, di- or trisubstituted by a C1-4 linear or branched hydroxyalkyl radical, and the concentration of component (a) is 0.08 to 0.

Abstract: A formulation unit for an inkjet printing machine, wherein the inkjet printing machine comprises a printing unit with a printing device and with an ink supply device for supplying ink to the printing device. The formulation unit comprises at least one preparation device for the preparation of ink and at least one storage tank for storing prepared ink.

Abstract: The instant invention relates to mixtures of stilbene compounds which provide superior fluorescent whitening effects when applied to the surface of ink-jet papers.

Abstract: A formulation unit for an inkjet printing machine, wherein the inkjet printing machine comprises a printing unit with a printing device and with an ink supply device for supplying ink to the printing device. The formulation unit comprises at least one preparation device for the preparation of ink and at least one storage tank for storing prepared ink.

Abstract: The instant invention relates to mixed salts of optical brighteners of formula (1), wherein M represents a mixture of Mg2+ with another cation, which provide for superior optical brightening effects when applied to the surface of paper.