Inks for ink jet printers contain an aqueous carrier medium; a colorant that is insoluble in the aqueous carrier, a polymer dispersant; and a linear polymer additive selected from the group consisting of an water soluble, elastomeric ABA block polymer comprising an elastomeric B block and non-elastomeric A blocks; anionic polymers selected from neutralized acrylic and methacrylic acid polymers; cationic polymers selected from neutralized or quaternized amine polymers; water-dispersible .beta.-diketone containing polymers and ethylene oxide containing polymers.

As tintas para impressoras do jato da tinta contêm um meio aqueous do portador; um colorant que seja insoluble no portador aqueous, um dispersant do polímero; e um aditivo linear do polímero selecionado do grupo que consiste em uma água soluble, no polímero elastomeric do bloco do ABA que compreende um bloco elastomeric de B e uns blocos non-non-elastomeric de A; polímeros anionic selecionados dos polímeros ácidos acrílicos e methacrylic neutralizados; os polímeros cationic selecionados do neutralizado ou quaternized polímeros do amine; beta.-beta.-diketone water-dispersible que contem polímeros e óxido do etileno que contem polímeros.

 
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