Ink jet recording ink and method
First Claim
1. An ink jet recording method, comprising the step of positing a reaction solution and an ink composition onto a recording medium to perform printing,the reaction solution comprising a polyvalent metal salt, polyallylamine, or a derivative of the polyallylamine,the ink composition comprising a colorant, an inorganic oxide colloid, and an aqueous solvent and having a pH value of not less than 9.
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Abstract
A good ink composition for ink jet recording, especially an ink composition that can be stably ejected from a recording head and can yield an image possessing excellent rubbing/scratch resistance. An ink jet recording method comprising the step of printing two solutions of a first solution and an ink composition that, even in the case of printing on a recycled paper, can realize a good printed image, especially an image having no significant feathering and free from unevenness of printing and an image free from color bleeding. The ink composition comprises a combination of an inorganic oxide colloid with an alkali metal hydroxide.
43 Citations
25 Claims
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1. An ink jet recording method, comprising the step of positing a reaction solution and an ink composition onto a recording medium to perform printing,
the reaction solution comprising a polyvalent metal salt, polyallylamine, or a derivative of the polyallylamine, the ink composition comprising a colorant, an inorganic oxide colloid, and an aqueous solvent and having a pH value of not less than 9.
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20. A combination comprising:
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(a) an ink composition comprising a colorant, an inorganic oxide colloid, and an aqueous solvent and having a pH value of not less than 9, and (b) a reaction solution comprising a polyvalent metal salt, polyallylamine, or a derivative of the polyallylamine. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification