摘要:
A process for preparing an encapsulated pigment dispersion suitable for use in an ink jet printing ink comprising the following steps in the order I) followed by II): I) providing a dispersion comprising a pigment, a liquid medium and a dispersant comprising the repeat units from copolymerising the ethylenically unsaturated monomers in components a) to c): a) from 75 to 97 parts of one or more hydrophobic ethylenically unsaturated monomers comprising at least 50 parts benzyl (meth) acrylate; b) from 3 to 25 parts one or more hydrophilic ethylenically unsaturated monomers having one or more ionic group(s); c) from 0 to 2 parts of one or more hydrophilic ethylenically unsaturated monomers having a hydrophilic non-ionic group; and wherein the parts are by weight and the sum of the parts a) to c) add up to 100; II) cross-linking the dispersant in the presence of the pigment and the liquid medium.
摘要:
A process for preparing an encapsulated pigment dispersion suitable for use in an ink jet printing ink comprising the following steps in the order I) followed by II): I) providing a dispersion comprising a pigment, a liquid medium and a dispersant comprising the repeat units from copolymerizing the ethylenically unsaturated monomers in components a) to c): a) from 75 to 97 parts of one or more hydrophobic ethylenically unsaturated monomers comprising at least 50 parts benzyl (meth)acrylate; b) from 3 to 25 parts one or more hydrophilic ethylenically unsaturated monomers having one or more ionic group(s); c) from 0 to 2 parts of one or more hydrophilic ethylenically unsaturated monomers having a hydrophilic non-ionic group; and wherein the parts are by weight and the sum of the parts a) to c) add up to 100; II) cross-linking the dispersant in the presence of the pigment and the liquid medium.
摘要:
A process for preparing a dispersion of encapsulated solid particles in a liquid medium comprising: i) comminuting a composition comprising a solid, a liquid medium and a polyurethane dispersant having an acid value of from 0.55 to 3.5 mmoles per g of dispersant, said composition comprising from 5 to 40 parts of polyurethane dispersant per 100 parts of solid, the parts being by weight; and ii) cross-linking the polyurethane dispersant in the presence of the solid and the liquid medium so as to encapsulate the solid particles; wherein the polyurethane dispersant contains less than 10% by weight of repeat units from polymeric alcohols, each polymeric alcohol having a number averaged molecular weight of more than 500 daltons.
摘要:
A process for ink jet printing an image on a substrate is described, which includes applying to the substrate a composition including a liquid medium, a pigment and a polymer having a chain of the Formula (1) or a salt thereof: wherein X, Q1, Q2, Q3, A, m and n are as defined, and the polymer having a chain of Formula (1) or salt thereof is used to comminute the pigment.
摘要:
An ink comprising: a) an aqueous medium; b) colorant; and c) a compound of Formula (1); M[X]n (1) wherein: M is a copper, nickel, cobalt or manganese cation; X is a carboxylic acid anion comprising at least four carbon atoms; and n is from 1 to 2 inclusive.
摘要:
A process for preparing a dispersion of encapsulated solid particles in a liquid medium is described, which includes providing a dispersion comprising solid particles, a liquid medium and a polymer comprising at least one repeat unit of the Formula (1) or a salt thereof: and cross-linking the polymer, wherein X, Q1, Q2, Q3, A and m are as defined.
摘要:
A process for preparing a patterned, cross-linked, acrylic-polymer, film coating on a substrate; the process comprising the steps of: a) applying to the substrate by an ink-jet printing process a mixture comprising: i) one or more cross-linkable, thermally ink-jettable, water-dissipatable, precursor(s) for one or more cross-linked acrylic-polymer(s); ii) one or more cross-linker(s) capable of cross-linking the precursor(s) for the acrylic-polymer(s); and iii) one or more colorant(s); and b) thereafter curing the mixture in situ to form the patterned, cross-linked, acrylic-polymer, film coating on the substrate. Preferably the substrate is a color filter suitable for use in an LCD display and the mixture is applied in a single pass. The precursor may itself comprise polymers, e.g. acrylic polymers. Ink for use in this process and substrates printed by this process are also described.
摘要:
Compounds of Formula (1) have utility as dyes for ink-jet printing where Formula (1) comprises:T.sub.q --W Formula (1)which includes all acceptable forms of such compounds selected from one or more of the following (including mixtures thereof and combinations thereof in the same species): stereoisomers, zwitterions, polymorphs, solvates, isotopic forms; and all suitable salts thereof; in which:q represents from 1 to 4 inclusive;W comprises an optionally substituted hydrocarbyl group (preferably an optionally substituted aromatic group, or an optionally substituted aliphatic group); andeach T independently comprises a group of the Formula (2):B--N.dbd.N--J--Y-- Formula (2)in which:B comprises an optionally substituted indanyl group;Y comprises a carbonyl group or a sulphonyl group; andJ comprises a group of Formula (3): ##STR1## in which: R.sup.1 comprises H or optionally substituted hydrocarbyl (preferably H or optionally substituted alkyl); andn represents from 0 to 3 inclusive; the compounds of Formula (1) being substantially free from fiber reactive groups.
摘要:
A process for defining a substrate is provided. The process comprises applying to the substrate a water soluble dye having at least two electrophilic groups and a nucleophilic agent having a molecular weight below 600 and at least one group selected from aliphatic primary amino groups and secondary amino groups.
摘要:
A process for preparing a dispersion of encapsulated solid particles in a liquid medium is described, which includes providing a dispersion comprising solid particles, a liquid medium and a polymer comprising at least one repeat unit of the Formula (1) or a salt thereof: and cross-linking the polymer, wherein X, Q1, Q2, Q3, A and m are as defined.