Agfa Nv

Agfa Gevaert Nv

Ellen Bertels

Johan August Loccufier

Hubertus Van Aert

Lionel Petton

Luc Decoster

Tim Desmet

Jos Louwet

Sonny Wynants

Amandine Ligot

Sara Matheussen

Sophie Lingier

An aqueous dispersion of resin particles comprising a dispersing group covalently bonded to the resin and at least one repeating unit of formula I, II and/or III and which is obtainable by contacting a compound A comprising at least 2 functional groups selected from the group of functional groups —X—C(═O)—CHR1-C(═O)—R2, —X—C(═O)—C≡C—R2; or —X—C(═O)—CR1═CR2-NR11R12, with a compound B comprising at least two —NH, —NHor —N═C═O, wherein X, R1, R2, R3, R11 and R12 have the same meaning as that defined in the claims and wherein compound A and/or B comprise a dispersing group. The invention also includes a method of producing the aqueous dispersion and further relates to an aqueous inkjet ink comprising the resin particles.

Aqueous dispersion of resin particles

An aqueous dispersion of resin particles comprising a dispersing group covalently bonded to the resin and at least one repeating unit of formula I, II and/or III and which is obtainable by contacting a compound A comprising 2 functional groups selected from the group of functional groups —X—C(═O)—CHR1-C(═O)—R2, —X—C(═O)—C≡C—R2; or —X—C(═O)—CR1═CR2-NR11 R12, wherein X, R1, R2, R3, R11 and R12 have the same meaning as that defined in the claims, with a compound B comprising at least two —NH, —NHor —N═C═O, with a crosslinking agent C. The invention also includes a method of producing the aqueous dispersion and further relates to an aqueous ink jet ink comprising the resin particles.

An aqueous dispersion of a capsule composed of a polymeric shell surrounding a core, the core containing an amine blocked isocyanate, the amine blocked isocyanate comprises at least two isocyanate groups blocked by a blocking group, the blocking groups are independently from each other represented by a secondary amine. The aqueous dispersion is suitable as reactive binder chemistry in coatings and inks.

Encapsulated amine blocked isocyanates

An aqueous inkjet ink for textile printing comprising a disperse dyestuff and a glycerol ester of two or three long-chain fatty acids. The invention also includes an inkjet printing method for dyeing fabrics comprising hydrophobic fibres using the above described aqueous inkjet ink.

Aqueous inkjet ink comprising disperse dyestuff

An aqueous polyurethane resin dispersion includes a cationic group and a polyalkylene oxide in a side chain thereof. The polyurethane resin is obtainable by reacting a polyester polyol, a polyether diol, a polyol containing a quaternary N-atom or tertiary amino group, and a polyisocyanate. The polyester polyol is obtained by reacting an aromatic polycarboxylic acid and a polyol. The polyurethane resin is suitable as a resin in treatment liquids of substrates and images made by inkjet printing.

Aqueous polyurethane resin dispersion

An aqueous polyurethane resin having a cationic group in a side chain thereof is obtainable by reacting a polyester polyol, a polyisocyanate, and a diol containing a quaternary N-atom or amino group, the quaternary N-atom or amino group being not present in the carbon chain between the two hydroxyl groups of the diol. The polyester polyol is obtained by reacting an aromatic polycarboxylic acid and a polyol. The polyurethane resin is suitable as a resin in treatment liquids for inkjet printing.

A radiation curable polyurethane resin includes an ionic group, a polyalkylene oxide in a side chain thereof, and a (meth)acrylate or (meth)acrylamide having a hydroxyl functional group. The polyurethane resin is obtainable by reacting a polyester polyol, a polyether diol, a polyol containing an ionic group, a (meth)acrylate or (meth)acrylamide having a hydroxyl functional group, and a polyisocyanate. The polyester polyol is obtained by reacting a polycarboxylic acid and a polyol. The radiation curable polyurethane resin can be used as binder in an aqueous ink jet ink.

Radiation curable polyurethane resin for ink jet ink

A polyurethane resin having an anionic group and a polyalkylene oxide in a side chain thereof is obtainable by reacting a polyester polyol, a polyether diol, a polyol containing an anionic group, and a polyisocyanate, and the polyester polyol is obtained by reacting an aromatic polycarboxylic acid and a polyol. The polyurethane resin can be used as binder in an ink jet ink and provides excellent scratch and solvent resistance of printed images.

Polyurethane resin for ink jet ink

A method for manufacturing printed textiles includes the steps of: a) inkjet printing an image onto a textile substrate with one or more inkjet printing liquids containing thermally reactive composite resin particles in an aqueous medium; and b) fixing the inkjet printed image by applying directly and/or indirectly a heat treatment to the image; wherein the thermally reactive composite resin particles contain at least one thermal cross-linker and at least one polymeric resin containing functional groups suitable for reacting with the thermal cross-linker.

Methods for manufacturing printed textiles

An ink jet ink includes water, a water-soluble organic solvent, a resin, and an anionic heptamethine cyanine dye including a substituted or unsubstituted five or six membered ring in the heptamethine chain, the dye having a maximum absorption between 800 and 1200 nm to increase drying speed and improve image quality when dried with NIR or CIR dryers.

Ink jet inks having IR-absorbing dye

An inkjet printing liquid contains thermally reactive composite resin particles in an aqueous medium, wherein the thermally reactive composite resin particles contain: a) at least one thermal cross-linker; and b) at least one polymeric resin containing functional groups suitable for reacting with the thermal cross-linker.

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Mortsel, Belgium

Ellen Bertels