Ink compositions
AssigneeCiba-Geigy Corporation
InventorsVien V. Toan, Hugh S. Laver, David G. Leppard
Life of this patent
Estimating the term…
Abstract
The invention relates to ink compositions, in particular for ink-jet printing, containing as stabiliser a water-soluble compound of formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, L, M and n are as defined in claim 1, to said compounds and to recording materials containing them, and to a process for stabilising ink-jet prints, the stabiliser being a compound of formula (I) or (II).
Claims11
An ink composition containing as stabiliser at least one water-soluble compound of formula ##STR21## wherein R.sub.1 is H, C.sub.1 -C.sub.18 alkyl, C.sub.7 -C.sub.9 phenylalkyl, phenyl or a group of formula III ##STR22## R.sub.2 is H, C.sub.1 -C.sub.18 alkyl, C.sub.7 -C.sub.9 phenylalkyl, phenyl, a group of formula III or group of formula IV --CH.sub.2 CH.sub.2 COOR.sub.6 (IV);
- R.sub.3 is H, C.sub.1 -C.sub.4 alkyl;
- M is H, an alkali metal ion or a group (R.sub.7)(R.sub.8)(R.sub.9)(R.sub.10)N;
- wherein R.sub.7, R.sub.8, R.sub.9 and R.sub.10 are each independently of one another H, unsubstituted C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkyl which is substituted by 1 to 3 OH groups, C.sub.3 -C.sub.20 alkyl which is interrupted by one or more than one oxygen atom, or are allyl, cyclopentyl, cyclohexyl, phenyl, benzyl or tolyl;
- L is a direct bond, --C(R.sub.11)(R.sub.12)-- or --S--;
- wherein R.sub.11 and R.sub.12 are each independently of the other H or C.sub.1 -C.sub.8 alkyl;
- or R.sub.11 and R.sub.12, together with the linking carbon atom, form a cyclopentylene, cyclohexylene or cycloheptylene ring, each unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 alkyl groups;
- R.sub.4 and R.sub.5 are are each independently of the other H or C.sub.1 -C.sub.8 alkyl;
- R.sub.6 is M, unsubstituted C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkyl which is substituted by one --OH group, or is C.sub.3 -C.sub.20 alkyl which is interrupted by one or more than one oxygen atom;
- and
- n is 0 or 1.
A recording material that contains at least one compound of formula ##STR28## wherein R.sub.1 is H, C.sub.1 -C.sub.18 alkyl, C.sub.7 -C.sub.9 phenylalkyl, phenyl or a group of formula III ##STR29## R.sub.2 is H, C.sub.1 -C.sub.18 alkyl, C.sub.7 -C.sub.9 phenylalkyl, phenyl, a group of formula III or group of formula IV --CH.sub.2 CH.sub.2 COOR.sub.6 (IV);
- R.sub.3 is H, C.sub.1 -C.sub.4 alkyl;
- M is H, an alkali metal ion or a group (R.sub.7)(R.sub.8)(R.sub.9)(R.sub.10)N;
- wherein R.sub.7, R.sub.8, R.sub.9 and R.sub.10 are each independently of one another H, unsubstituted C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkyl which is substituted by 1 to 3 OH groups, C.sub.3 -C.sub.20 alkyl which is interrupted by one or more than one oxygen atom, or are allyl, cyclopentyl, cyclohexyl, phenyl, benzyl or tolyl;
- L is a direct bond, --C(R.sub.11)(R.sub.12)-- or --S--;
- wherein R.sub.11 and R.sub.12 are each independently of the other H or C.sub.1 -C.sub.8 alkyl;
- or R.sub.11 and R.sub.12, together with the linking carbon atom, form a cyclopentylene, cyclohexylene or cycloheptylene ring, each unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 alkyl groups;
- R.sub.4 and R.sub.5 are are each independently of the other H or C.sub.1 -C.sub.8 alkyl;
- R.sub.6 is M, unsubstituted C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkyl which is substituted by one --OH group, or is C.sub.3 -C.sub.20 alkyl which is interrupted by one or more than one oxygen atom;
- and
- n is 0 or 1.
A process for stabilising ink-jet prints, which comprises applying to a recording material for ink-jet printing an ink composition in the form of an aqueous solution comprising a water-soluble dye and at least one compound of formula ##STR30## wherein R.sub.1 is H, C.sub.1 -C.sub.18 alkyl, C.sub.7 -C.sub.9 phenylalkyl, phenyl or a group of formula III ##STR31## R.sub.2 is H, C.sub.1 -C.sub.18 alkyl, C.sub.7 -C.sub.9 phenylalkyl, phenyl, a group of formula III or group of formula IV --CH.sub.2 CH.sub.2 COOR.sub.6 (IV);
- R.sub.3 is H, C.sub.1 -C.sub.4 alkyl;
- M is H, an alkali metal ion or a group (R.sub.7)(R.sub.8)(R.sub.9)(R.sub.10 )N;
- wherein R.sub.7, R.sub.8, R.sub.9 and R.sub.10 are each independently of one another H, unsubstituted C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkyl which is substituted by 1 to 3 OH groups, C.sub.3 -C.sub.20 alkyl which is interrupted by one or more than one oxygen atom, or are allyl, cyclopentyl, cyclohexyl, phenyl, benzyl or tolyl;
- L is a direct bond, --C(R.sub.11)(R.sub.12)-- or --S--;
- wherein R.sub.11 and R.sub.12 are each independently of the other H or C.sub.1 -C.sub.8 alkyl;
- or R.sub.11 and R.sub.12, together with the linking carbon atom, form a cyclopentylene, cyclohexylene or cycloheptylene ring, each unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 alkyl groups;
- R.sub.4 and R.sub.5 are are each independently of the other H or C.sub.1 -C.sub.8 alkyl;
- R.sub.6 is M, unsubstituted C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkyl which is substituted by one --OH group, or is C.sub.3 -C.sub.20 alkyl which is interrupted by one or more than one oxygen atom;
- and
- n is 0 or 1,
- and drying said recording material.
A process for stabilising ink-jet prints, which comprises applying to a recording material for ink-jet printing that contains at least one compound of formula ##STR32## wherein R.sub.1 is H, C.sub.1 -C.sub.18 alkyl, C.sub.7 -C.sub.9 phenylalkyl, phenyl or a group of formula III ##STR33## R.sub.2 is H, C.sub.1 -C.sub.18 alkyl, C.sub.7 -C.sub.9 phenylalkyl, phenyl, a group of formula III or group of formula IV --CH.sub.2 CH.sub.2 COOR.sub.6 (IV);
- R.sub.3 is H, C.sub.1 -C.sub.4 alkyl;
- M is H, an alkali metal ion or a group (R.sub.7)(R.sub.8)(R.sub.9)(R.sub.10)N;
- wherein R.sub.7, R.sub.8, R.sub.9 and R.sub.10 are each independently of one another H, unsubstituted C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkyl which is substituted by 1 to 3 OH groups, C.sub.3 -C.sub.20 alkyl which is interrupted by one or more than one oxygen atom, or are allyl, cyclopentyl, cyclohexyl, phenyl, benzyl or tolyl;
- L is a direct bond, --C(R.sub.11)(R.sub.12)-- or --S--;
- wherein R.sub.11 and R.sub.12 are each independently of the other H or C.sub.1 -C.sub.8 alkyl;
- or R.sub.11 and R.sub.12, together with the linking carbon atom, form a cyclopentylene, cyclohexylene or cycloheptylene ring, each unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 alkyl groups;
- R.sub.4 and R.sub.5 are are each independently of the other H or C.sub.1 -C.sub.8 alkyl;
- R.sub.6 is M, unsubstituted C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkyl which is substituted by one --OH group, or is C.sub.3 -C.sub.20 alkyl which is interrupted by one or more than one oxygen atom;
- and
- n is 0 or 1,
- an ink composition in the form of an aqueous solution that contains a water-soluble dye, and drying said recording material.
Dependencies are inferred from the claim text.