US4576867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink jet recording paper
Assignee: Mitsubishi Paper Mills Ltd
•
Filing: 1984-12-27
•
Granted: 1986-03-18
•
Expires: 2004-12-27
Abstract
Abstract By attaching a cationic resin having a structure represented by the following general formula (I) to at least the surface of an ink jet recording paper, the water-resistance and the sunlight fastness of the image formed on said ink jet recording paper can be improved: <IMAGE> (I) wherein R1, R2 and R3 represent alkyl group; m represents a number of 1 to 7; n represents a number of 2 to 20; and Y represents an acid residue.
Inventors
- 👤 Shigehiko Miyamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:11
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5245; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
67 words
An ink jet recording paper, wherein a cationic resin having a structure represented by the following general formula (I): ##STR5## wherein R 1 , R 2 and R 3 represent alkyl group, m represent a number of 1 to 7, n represents a number of 2 to 20, and Y represents an acid residue, is attached to at least the surface of said ink jet recording paper.
Claim 2
Dependent Claim
67 words
An ink jet recording paper, wherein a cationic resin having a structure represented by the following general formula (I): ##STR5## wherein R 1 , R 2 and R 3 represent alkyl group, m represent a number of 1 to 7, n represents a number of 2 to 20, and Y represents an acid residue, is attached to at least the surface of said ink jet recording paper.
Claim 3
Dependent Claim
27 words
An ink jet recording paper according to claim 1, wherein said cationic resin is attached in an amount of 0.1 g/m 2 to 4 g/m 2 .
Claim 4
Dependent Claim
27 words
An ink jet recording paper according to claim 2, wherein said cationic resin is attached in an amount of 0.2 g/m 2 to 2 g/m 2 .
Claim 5
Dependent Claim
42 words
An ink jet recording paper according to claim 1, wherein said cationic resin is attached to its surface by applying an aqueous solution containing a cationic resin and a water-soluble binder to the surface of a base paper and drying the solution.
Claim 6
Dependent Claim
59 words
An ink jet recording paper according to claim 1, wherein said cationic resin is attached to its surface by applying an aqueous solution containing a cationic resin to the surface of the so-called coated paper on which a coating layer containing a pigment having a high ink-absorbing ability and a water-soluble binder is formed, and then drying the solutions.
Claim 7
Dependent Claim
51 words
An ink jet recording paper according to claim 1, wherein said cationic resin is attached to its surface by applying an aqueous solution containing a cationic resin, a pigment having a high ink-absorbing ability and a water-soluble binder to the surface of a base paper and then drying the aqueous solution.
Claim 8
Dependent Claim
35 words
An ink jet recording paper according to claim 5 or claim 6, wherein said pigment having a high ink absorbing ability is selected from the group consisting of synthetic silica, synthetic alumina and calcium carbonate.
Claim 9
Dependent Claim
33 words
An ink jet recording paper according to claim 4, 5 or 6, wherein said water-soluble binder is selected from the group consisting of oxidized starch, polyvinyl alcohol, CMC and other water-soluble cellulose derivatives.
Claim 10
Dependent Claim
43 words
An ink jet recording paper according to claim 1, wherein, in general formula (I), R 1 , R 2 and R 3 are all methyl group, m is a number of 1 to 3, and n is a number of 5 to 15.
Claim 11
Dependent Claim
31 words
An ink jet recording paper according to claim 9, wherein, in general formula (I), m is a number of 1 to 2 and n is a number of 7 to 13.
Claim 12
Dependent Claim
21 words
An ink jet recording paper according to claim 10, wherein, in general formula (I), m is 1 and Y is Cl.
Claim 13
Dependent Claim
43 words
An ink jet recording paper according to claim 1, wherein, in general formula (I), R 1 , R 2 and R 3 are all methyl group, m is a number of 1 to 3, and n is a number of 2 to 10.
Claim 14
Dependent Claim
21 words
An ink jet recording paper according to claim 12, wherein, in general formula (I), m is 1 and Y is Cl.
Claim 15
Dependent Claim
15 words
An ink jet recording paper according to claim 1 which is used for multi-color recording.
Claim 16
Dependent Claim
28 words
An ink jet recording paper according to claim 14, wherein said multi-color recording is carried out with inks of cyan (C), magenta (M), yellow (Y) and black (Bl).
Claim 17
Dependent Claim
31 words
An ink jet recording paper according to claim 1 which is used for the ink jet recording using an aqueous ink containing a water-soluble direct dye and/or a water-soluble acid dye.
References Cited (Backward Citations)
US4371582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-17 | 1989-09-16 | 1990-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-17 | 1993-09-16 | 1994-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-17 | 1997-09-16 | 1998-03-18 | $7700.00 | Window Closed / Lapsed |