Patent US4770934A successfully refreshed from Google Patents.
US4770934A
Expired / Lapsed
US
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Ink jet recording medium
Assignee: Mitsubishi Paper Mills Ltd
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Filing: 1986-12-31
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Granted: 1988-09-13
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Expires: 2006-12-31
Abstract
Abstract An ink jet recording medium having at least one ink receptive layer containing synthetic silica of fine particle form as a main pigment, having a recording surface dried by pressing said recording surface against a heated mirror surface, and having ink receptive layer having an absorption capacity of at least 10 g/m2 is disclosed. That is, the present invention provides an ink jet recording medium which has a gloss without requiring any post-treatment for imparting the gloss, has a high ink absorbability and gives a high color reproducibility and a high color density in printing with a water-base ink, particularly a recording medium for full color ink jet recording having a gloss.
Inventors
- 👤 Takeshi Yamasaki
- 👤 Masao Suginaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:38
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5218; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/24934; Y10T428/25; Y10T428/259; Y10T428/27; Y10T428/273; Y10T428/277; Y10T428/31504; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
77 words
An ink jet recording medium for forming a recorded image using a water base ink comprising a substrate, and formed thereon at least one ink receptive layer containing synthetic silica of fine powder form as a main pigment, a recording surface of said ink receptive layer having been dried by pressing a wet surface thereof with a heated mirror surface, and said ink receiptive layer having an ink absorbtion capacity of at least 10 g/m 2 .
Claim 2
Dependent Claim
77 words
An ink jet recording medium for forming a recorded image using a water base ink comprising a substrate, and formed thereon at least one ink receptive layer containing synthetic silica of fine powder form as a main pigment, a recording surface of said ink receptive layer having been dried by pressing a wet surface thereof with a heated mirror surface, and said ink receiptive layer having an ink absorbtion capacity of at least 10 g/m 2 .
Claim 3
Dependent Claim
22 words
An ink jet recording medium according to claim 1, wherein the recording surface has a 75° specular gloss of at least 15%.
Claim 4
Dependent Claim
37 words
An ink jet recording medium according to any one of claims 1 and 2, wherein th recording surface has a half-width of a reflected light distribution curve of 10° or below at an incident angle of 75°.
Claim 5
Dependent Claim
42 words
An ink jet recording medium according to any one of claims 1 and 2 wherein the synthetic silica of fine particle form has a specific surface area of at least 100 m 2 /g when measured in accordance with the BET method.
Claim 6
Dependent Claim
46 words
An ink jet recording medium according to any one of claims 1 and 2 wherein the synthetic silica of fine particle form as a main pigment is added in an amount of at least 80 parts by weight per 100 parts by weight of total pigments.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-13 | 1992-03-14 | 1992-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-13 | 1996-03-14 | 1996-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-13 | 2000-03-14 | 2000-09-13 | $7700.00 | Window Closed / Lapsed |