US 8,784,954 B2Granted

Recording medium

AssigneeCanon Kabushiki Kaisha

InventorsYasuhiro Nito, Hisao Kamo, Naoya Hatta

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Abstract

A recording medium includes, in sequence, a support; a first ink-receiving layer including an inorganic particle, a water-soluble polymer having a hydroxyl group, a water-soluble polymer not having a hydroxyl group, and a boric acid compound; and a second ink-receiving layer including an inorganic particle, a water-soluble polymer having a hydroxyl group, and a boric acid compound. The second ink-receiving layer does not include the water-soluble polymer not having the hydroxyl group, or the second ink-receiving layer includes the water-soluble polymer not having the hydroxyl group but the content of the water-soluble polymer not having the hydroxyl group relative to that of the inorganic particle in the second ink-receiving layer is smaller than the content of the water-soluble polymer not having the hydroxyl group relative to that of the inorganic particle in the first ink-receiving layer.

Claims8

Dependent claims

A recording medium comprising:

a support;
a first ink-receiving layer;
and
a second ink-receiving layer in that order,
wherein the first ink-receiving layer includes an inorganic particle, a water-soluble polymer having a hydroxyl group, a water-soluble polymer not having a hydroxyl group, and a boric acid compound, and
the second ink-receiving layer includes an inorganic particle, a water-soluble polymer having a hydroxyl group, and a boric acid compound, and satisfies a condition (1) or (2) below:
Condition (1):
The second ink-receiving layer does not include the water-soluble polymer not having the hydroxyl group.
Condition (2):
The second ink-receiving layer includes the water-soluble polymer not having the hydroxyl group, but the content of the water-soluble polymer not having the hydroxyl group relative to the content of the inorganic particle in the second ink-receiving layer is smaller than the content of the water-soluble polymer not having the hydroxyl group relative to the content of the inorganic particle in the first ink-receiving layer.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/050,981Filed 10 Oct 2013
Priority: JP 2012-22614811 Oct 2012
Published: US 2014/0106092 A117 Apr 2014
Granted: 22 Jul 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B41M 5/502
Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording:…
B41M 5/506
Characterised by structural details, e.g. multilayer materials: intermediate layers
B41M 5/508
Characterised by structural details, e.g. multilayer materials: supports
B41M 5/52
Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording:…

Family

US 2014/0106092 A1Pre-grant publication · published 17 Apr 2014
US 8,784,954 B2This patent

From the US filing history. Foreign family members aren’t listed.

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