Ink-jet printing process using polymeric biguanides
AssigneeAvecia Limited
InventorsAidan Joseph Lavery, Janette Watkinson, Tom Annable
Life of this patent
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Abstract
An ink-jet printing process comprising the steps (a) and (b) in any order or simultaneously: (a) applying by means of an ink jet printer an ink to a substrate in a localised manner to form an image on the substrate; and (b) applying to the substrate a composition comprising a binder and a polymeric biguanide which has a repeat unit of Formula (1) or a salt thereof: wherein X and Y are the same or different and represent divalent organic linking groups.
Claims25
An ink jet printing process comprising the steps (a) and (b) in any order or simultaneously:
- (a) applying by means of an ink jet printer an ink to a substrate in a localised manner to form an image on the substrate;
- and
- (b) applying to the substrate a composition comprising a binder and a polymeric biguanide which has a repeat unit of the Formula (1) or a salt thereof:
- wherein:
- X and Y are the same or different and represent divalent organic linking groups.
A set of liquids suitable for use in an ink jet printer comprising:
- (a) a first liquid comprising:
- (i) 0.01 to 50 parts of a polymeric biguanide;
- (ii) 50 to 99.8 of a liquid medium selected from water, one or more water-soluble organic solvents and a mixture of water and one or more water-soluble organic solvents;
- and
- (iii) 0.01 to 50 parts of a binder;
- wherein the parts are by weight and the total number of parts (i)+(ii)+(iii)=100;
- and
- (b) an ink comprising a colorant and a liquid medium.
A recording sheet comprising a substrate bearing on at least one surface thereof a composition comprising a polymeric biguanide and a binder, wherein the polymeric biguanide has a repeat unit of the Formula (1) or a salt thereof:
- wherein:
- X and Y are the same or different and represent divalent organic linking groups.
A composition comprising a polymeric biguanide, a binder and a liquid medium comprising water and water soluble organic solvent, wherein the polymeric biguanide has a repeat unit of the Formula (1) or a salt thereof:
- wherein:
- X and Y are the same or different and represent divalent organic linking groups.
Dependencies are inferred from the claim text.