Ink jet recording sheet

• US 5,677,067 A
• Filed: 08/02/1995
• Issued: 10/14/1997
• Est. Priority Date: 03/02/1993
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Paper Mills Limited
• Original Assignee: Mitsubishi Paper Mills Limited
• Inventors: Tomimasu, Hiroshi, Tsubaki, Masayuki, Kojima, Osamu, Yoshida, Yasumine
• Primary Examiner(s): Hess, Bruce H.
• Application Number:
  US08/495,679
• Time in Patent Office: 804 Days
• Field of Search: 428/195, 428/478.2, 428/532, 428/478.8, 428/480, 428/513, 428/535, 347/105
• US Class Current: 428/32.27
• CPC Class Codes: B41M 5/506 Intermediate layers
• CPC Class Codes: B41M 5/508 Supports
• CPC Class Codes: B41M 5/52 Macromolecular coatings
• CPC Class Codes: B41M 5/5218 characterised by inorganic additives, e.g. pigments, clays
• CPC Class Codes: B41M 5/5227 characterised by organic non-macromolecular additives, e.g. UV-absorbers, plasticisers, surfactants
• CPC Class Codes: B41M 5/5236 characterised by the use of natural gums, of proteins, e.g. gelatins, or of macromolecular carbohydrates, e.g. cellulose
• CPC Class Codes: B41M 5/5272 Polyesters; Polycarbonates
• CPC Class Codes: B41M 5/5281 Polyurethanes or polyureas
• CPC Class Codes: Y10T 428/259 Silicic material
• CPC Class Codes: Y10T 428/31775 Paper
• CPC Class Codes: Y10T 428/31786 Of polyester [e.g., alkyd, etc.]
• CPC Class Codes: Y10T 428/31902 Monoethylenically unsaturated
• CPC Class Codes: Y10T 428/31913 Monoolefin polymer
• CPC Class Codes: Y10T 428/31971 Of carbohydrate
• CPC Class Codes: Y10T 428/31982 Wood or paper

Abstract

Disclosed are ink jet recording sheets comprising specific ink-receiving layers on supports. The ink jet recording sheets give excellent images.

Claims

1. An ink jet recording sheet consisting essentially of a support and an ink-receiving layer provided on the support wherein the ink-receiving layer contains a low-molecular weight gelatin having a molecular weight of 100,000 or less in an amount of 30% by weight or more in solid content based on the total solid content of the ink-receiving layer, mucochloric acid in an amount of 0.1-1.0% by weight in solid content based on the content of gelatin and carboxymethylcellulose having a molecular weight of 100,000 or less and an etherification degree of 1% or less.

2. An ink jet recording sheet according to claim 1, wherein the support is a polyolefin resin-coated paper.

3. An ink jet recording sheet according to claim 1, wherein the support is a polyester film.

4. An ink jet recording sheet according to claim 2, wherein the polyolefin resin is a polyethylene resin.