Alumina dispersant, alumina dispersion liquid, agent for treating inkjet-printing materials, and inkjet-printing materials
AssigneeTaiho Industries Co., Ltd.
InventorsKousuke Okura, Tetsuya Ochiai, Kenji Kawada
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Abstract
This invention provides an alumina dispersant mainly comprised of a nitrogen-containing monocarboxylic acid, an alumina dispersion liquid comprised of alumina particles dispersed well in an aqueous dispersing medium, a treating agent for use in making inkjet-printing materials, comprised of the alumina dispersion, and the inkjet-printing materials prepared by using the treating agent to have a high glossiness, high absorption, high water resistance, high reproducibility and good roundness of dots.
Claims16
An alumina dispersion composition liquid which consists essentially of
- an alumina dispersant consisting essentially of a heterocyclic compound having a heterocyclic structure containing a nitrogen atom as heteroatom and having a carboxyl group bonded thereto,
- optionally a binder,
- alumina particles and
- an aqueous dispersing medium.
An alumina dispersion composition liquid which comprises
- an alumina dispersant comprising a monocarboxylic acid containing at least one nitrogen atom in the molecule thereof,
- alumina particles,
- an aqueous dispersing medium, and
- an aqueous solvent-soluble polyvinyl acetal resin binder, acetalized with an aromatic aldehyde to have a degree of acetalization of 5 to 10 mol %, and having a molecular weight of 1.5×104 or more.
Dependencies are inferred from the claim text.