US5538550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet recording method, normally solid recording material and recording apparatus for the method
Assignee: Canon Inc
•
Filing: 1993-09-15
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Granted: 1996-07-23
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Expires: 2013-09-15
Abstract
Abstract A normally solid recording material is heat-melted in a path defined by a nozzle leading to an ejection outlet and is imparted with a thermal energy from a heater corresponding to a recording signal to generate a bubble. As a result, a droplet of the recording material is ejected out of the ejection outlet under the action of the bubble while the bubble is caused to communicated with ambience. The normally solid recording material preferably contains a colorant, a first heat-fusible solid substance having a melting point Tm of 36°-150° C. and a boiling point Tb of 150°-370° C., and a second heat-fusible solid substance having a melting point Tm and a solidifying point Tf satisfying a relationship of Tm-Tf≦30° C. The distance between the heater and the ejection outlet, the sectional size of the nozzle and the thermal energy imparted by the heater are controlled to cause the bubble to communicate with ambience.
Inventors
- 👤 Hisao Yaegashi
- 👤 Yoshihisa Takizawa
- 👤 Katsuhiro Shirota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:07
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/34; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/14; B41J2/14016; B41J2/14032; B41J2/1404; B41J2/14088; B41J2/14112; B41J2/17; B41J2/175; B41J2/17593; B41J2002/14169; B41J2002/14379; B41J2002/14387
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
168 words
A normally solid recording material for use in a jet recording method, said normally solid recording material for being melted in a path defined by a nozzle leading to an ejection outlet and imparted with a thermal energy to generate a bubble therein so that a droplet of the recording material is ejected under the action of the bubble while the bubble is caused to communicate with ambience, said normally solid recording material comprising: a colorant, a first heat-fusible solid substance having a melting point Tm of 36°-150° C. and a boiling point Tb of 150°-370° C., and a second heat-fusible solid substance having a melting point Tm and a solidifying point Tf satisfying a relationship of Tm-Tf≦30° C., wherein said colorant is contained in a proportion of 1-20 wt. % of the recording material, said first heat-fusible solid substance occupies 30-90 wt. % of the total of the first and second heat-fusible solid substances, and said first and second heat-fusible solid substances are compatible with each other.
Claim 2
Dependent Claim
168 words
A normally solid recording material for use in a jet recording method, said normally solid recording material for being melted in a path defined by a nozzle leading to an ejection outlet and imparted with a thermal energy to generate a bubble therein so that a droplet of the recording material is ejected under the action of the bubble while the bubble is caused to communicate with ambience, said normally solid recording material comprising: a colorant, a first heat-fusible solid substance having a melting point Tm of 36°-150° C. and a boiling point Tb of 150°-370° C., and a second heat-fusible solid substance having a melting point Tm and a solidifying point Tf satisfying a relationship of Tm-Tf≦30° C., wherein said colorant is contained in a proportion of 1-20 wt. % of the recording material, said first heat-fusible solid substance occupies 30-90 wt. % of the total of the first and second heat-fusible solid substances, and said first and second heat-fusible solid substances are compatible with each other.
Claim 3
Dependent Claim
29 words
A recording material according to claim 1, wherein the melting point Tm and the solidifying point Tf of the second heat-fusible solid substance satisfy a relationship of Tm-Tf15° C.
Claim 4
Dependent Claim
34 words
A recording material according to claim 1, wherein at least one of said first and second heat-fusible solid substances has a melting Tm and a solidifying point Tf satisfying a relationship of Tm-Tf≧7° C.
Claim 5
Dependent Claim
31 words
A recording material according to claims 1, wherein said first heat-fusible solid substance comprises ethylene carbonate, and said second heat-fusible solid substance comprises a compound having 2-8-hydroxyl groups in its molecule.
Claim 6
Dependent Claim
23 words
A recording material according to claim 4, wherein said second heat-fusible solid substance comprises a compound having 2-5 hydroxyl groups in its molecule.
Claim 7
Dependent Claim
31 words
A recording material according to claim 1, wherein said first heat-fusible solid substance comprises ethylene carbonate, and said second heat-fusible solid substance comprises a substance having a hydroxyl value of 300-1000.
Claim 8
Dependent Claim
22 words
A recording material according to claim 6, wherein said second heat-fusible solid substance comprises a substance having a hydroxyl value of 330-960.
Claim 9
Dependent Claim
20 words
A recording material according to claim 4, wherein said second heat-fusible solid substance has a melting point of 50°-120° C.
Claim 10
Dependent Claim
20 words
A recording material according to claim 6, wherein said second heat-fusible solid substance has a melting point of 50°-120° C.
Claim 11
Dependent Claim
41 words
A recording material according to claim 1, wherein said first heat-fusible solid substance comprises ethylene carbonate, and said second heat-fusible solid substance comprises at least one member selected from the group consisting of 1,12-dodecanediol, 1,10-decanediol, 1,8-octanediol, glycerin mono-12-hydroxystearate, and methyl 9,10-dihydroxystearate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-07-23 | 2000-01-22 | 2000-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-23 | 2004-01-22 | 2004-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-23 | 2008-01-22 | 2008-07-23 | $7700.00 | Window Closed / Lapsed |