Recording materials for ink-jet printing

Claim 1

A recording material for ink jet printing comprising a carrier having a surface which can be printed on or a carrier coated on one side with a material which can be printed on, wherein said carrier or said coating contains as a stabilizer, at least one compound of the formula I ##STR17## in which R 1 and R 2 independently of one another are C 1 -C 4 alkyl which is unsubstituted or substituted by one or two --OH, --COO.sup.⊖ M.sup.⊕ and/or --SO 3 .sup.⊖ M.sup.⊕ groups, C 3 -C 5 alkenyl, C 3 -C 5 alkynyl, ##STR18## --CH 2 CH(OH)CH 2 --SO 3 .sup.⊖ M.sup.⊕, --CO-alkyl(C 1 -C 4 ) which is unsubstituted or substituted by --COOR o or --CO--N(R 5 )(R 6 ) or, if OR 1 and OR 2 are in the ortho-position relative to one another, R 1 and R 2 together are C 1 -C 6 alkylene, M.sup.⊕ being H.sup.⊕, a monovalent, divalent or trivalent metal cation or a group (R 12 ')N.sup.⊕ (R 12 ")(R 13 ')(R 14 '), wherein R 12 ', R 12 ", R 13 and R 14 independently of one another are H, C 1 -C 4 alkyl which is unsubstituted or substituted by 1 or 3 OH, C 1 -C 4 alkyl interrupted by O, allyl, cyclopentyl, cyclohexyl, phenyl, benzyl or tolyl, or R 1 is a group ##STR19## in which p' is a number from 2 to 6, R 5 and R 6 independently of one another are H or C 1 -C 4 alkyl which is unsubstituted or substituted by an OH, COOR o , --COO.sup.⊖ M.sup.⊕, SO 3 R o , SO 3 .sup.⊖ M.sup.⊕, P(O)(O.sup.⊖ M.sup.⊕) 2 or P(O)(OR o ) 2 group, R 3 ' and R 4 ' independently of one another are H, C 1 -C 4 alkyl, OH or C 1 -C 4 alkoxy, R 3 and R 4 independently of one another are H, halogen, --OR 7 , --COOR o , --COO.sup.⊖ M.sup.⊕, --OOC--R 5 , --CO--N(R 5 )(R 6 ), --(R 5 )N--CO--R 6 , --CO--R 5 , --SO 3 .sup.⊖ M.sup.⊕, --SO 2 N(R 5 )(R 6 ), --P(OR 5 ) 3 , --(O)P(O.sup.⊖ M.sup.⊕).sub. 2, --(O)P--(OR o ) 2 , C 1 -C 8 alkyl which is unsubstituted or substituted by 1 to 7 --OR 5 or --OOC--R 5 groups, by 1 or 2 --COOR o , --COO.sup.⊖ M.sup.⊕, or --CO--N(R 5 )(R 6 ) groups or by one or two --SO 3 .sup.⊖ M.sup.⊕, --SO 2 N(R 5 )(R 6 ) or --(O)P--(OR o ) 2 or --(O)P(O.sup.⊖ M.sup.⊕) 2 groups, where M.sup.⊕, R 5 and R 6 are as defined above, or C 5 -C 6 cycloalkyl or allyl, R o being C 1 -C 4 alkyl which is unsubstituted or substituted by an --OH group or --(CH 2 CH 2 O) r --H in which r is 1 to 12, and R 7 being C 1 -C 4 alkyl or --CO-alkyl(C 1 -C 4 ) each of which is unsubstituted or substituted by 1 or 2 --OH groups or R 3 and R 4 independently of one another are one of the groups of the formulae II-IV ##STR20## in which R 8 is a direct bond or methylene, R 9 is H, C 1 -C 8 alkyl, --COO.sup.⊖ M.sup.⊕ or --SO 3 .sup.⊖ M.sup.⊕, where M.sup.⊕, R 1 and R 2 are as defined above, R 15 is --CO--, --(O) g --C p H 2p --CO--, --OOC--C p H 2p --, --COO--C p H 2p --, --O--CH 2 CH(OH)--CH 2 -- or ##STR21## in which g is 0 or 1 and p is 1 to 6 and R 24 is --OR 5 , --N(R 5 )(R 6 ) or a group ##STR22## and R 16 is one of the following radicals: ##STR23## in which R 25 is H or C 1 -C 4 alkyl, R 17 is H, C 1 -C 4 alkyl which is unsubstituted or substituted by an --OH group, --CH 2 --CH(OH)--CH 2 --OH, C 1 -C 4 -alkoxy, --OH, --CO-alkyl(C 1 -C 4 ), --COCH═CH 2 , allyl, benzyl or a group ##STR24## in which s is the number 2 or 3, t is a number from 0 to 2 and R 21 and R 22 independently of one another are H, C 1 -C 4 alkyl or phenyl.