Ink-jet recording sheet
AssigneeKonica Minolta Holdings, Inc.
InventorsYukako Taka, Yoshinori Tsubaki
Life of this patent
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Abstract
An ink-jet recording sheet is disclosed. The ink accepting porous layer comprises a hydrophilic binder containing a polymer compound crosslinked via irradiation of ionizing radiation, micro particles, and at least one component selected from the group consisting of (A) a nitrogen-containing compound, (B) a sulfur-containing compound, (C) a phenol compound and (D) a polyvalent metal salt.
Claims15
1-15. (canceled)
The preparation method of claim 28, further comprising, before crosslinking the coated layer, the step of applying a coating liquid containing at least one component selected from the group consisting of (A) a nitrogen-containing compound, (B) a sulfur-containing compound, (C) a phenol compound and (D) a polyvalent metal salt onto the coated.
(canceled)
The preparation method of claim 28, wherein the nitrogen-containing compound is selected and is at least one selected from the group consisting of a hindered amine compound, a hydroxylamine compound and a water-soluble aliphatic tertiary amine compound.
The preparation method of claim 28, wherein the nitrogen-containing compound is selected and is an polyallylamine compound.
The preparation method of claim 28, wherein the nitrogen-containing compound is selected and is a tertiary amine compound.
The preparation method of claim 28, wherein the sulfur compound is selected and is a compound represented by Formula 1 or Formula 2:
- R—S—R′ Formula 1
- wherein R and R′ are each an alkyl group or an aryl group,
- wherein M is a hydrogen atom, an ammonium ion or a metal atom;
- X is a group of non-metal atoms necessary to form a five- through seven-member ring.
The preparation method of claim 28, wherein the polyvalent metal salt is selected and is a water-soluble salt of one selected from the group consisting of cesium, magnesium, aluminum and zirconium.
The preparation method of claim 28, wherein the phenol compound is selected and is a hindered phenol compound or a hydroquinone diether compound.
The preparation method of claim 28, wherein the polymer compound is selected and is a polymer compound crosslinked through side chains of a hydrophilic polymer compound having a polymerization degree of not less than 300 and the plurality of side chains on a main chain by irradiation via ionizing radiation.
The preparation method of claim 28, wherein the ink accepting porous layer further comprises polyvinyl alcohol or its derivative.
A preparation method of an ink-jet recording sheet comprising a support having thereon an ink accepting porous layer containing at least one component selected from the group consisting of (A) a nitrogen-containing compound, (B) a sulfur-containing compound, (C) a phenol compound and (D) a polyvalent metal salt;
- the method comprising the steps of:
- forming a coated film comprising an aqueous suspension of a hydrophilic resin having a dimer formable photosensitive group and micro particles, on the support;
- drying the coated film;
- and thereafter,
- crosslinking the hydrophilic resin by ultraviolet irradiation to form the ink accepting porous layer on the support.
The preparation method of claim 1, wherein the coated film comprises at least one component selected from the group consisting of (A) a nitrogen-containing compound, (B) a sulfur-containing compound, (C) a phenol compound and (D) a polyvalent meta-salt.
Dependencies are inferred from the claim text.