US4465389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosensitive inked element for non-impact printers
Assignee: TIM SpA
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Filing: 1982-09-13
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Granted: 1984-08-14
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Expires: 2002-09-13
Abstract
Abstract The inked element in the form of a ribbon comprises a plastics support coated on one side with a thin layer (2 to 4 mm) of thermotransferable inking mixture which comprises, in addition to a pigment or dye, a binder of thermoplastic resin, in particular a styrene or terpene resin, a plasticizer and a softening compound constituted by one or more waxes in a percentage between 18 and 50%. The plasticizer is constituted by an ester of phthalic or phosphoric acid or another polymer.
Inventors
- 👤 Franco Knirsch
- 👤 Giovanni Gianolini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:18
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/3825; B41M5/392; Y; Y10; Y10S; Y10S428/00; Y10S428/914
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
162 words
A thermosensitive inked element for a non-impact printer of the thermal type, comprising a base support of plastics material having a thickness comprised between 7 and 20μ, said base support being coated on one side with a layer 2 to 4μ thick of a mixture transferable from said base support to a printing paper when said inked element is subject to heat and is pressed against said paper, said mixture comprising a pigment or dye, a binder including one or more hydrocarbon resins with a softening point around 100° C., and a plasticizer, characterized in that said binder includes a softener constituted by one or more natural or synthetic waxes and esters of said waxes having a low melting point and in a proportion ranging between 20 and 50% of the mixture so as to lower the melting point of the mixture and to improve its penetration in said paper, said plasticizer being in a proportion not exceeding 5% of said mixture.
Claim 2
Dependent Claim
162 words
A thermosensitive inked element for a non-impact printer of the thermal type, comprising a base support of plastics material having a thickness comprised between 7 and 20μ, said base support being coated on one side with a layer 2 to 4μ thick of a mixture transferable from said base support to a printing paper when said inked element is subject to heat and is pressed against said paper, said mixture comprising a pigment or dye, a binder including one or more hydrocarbon resins with a softening point around 100° C., and a plasticizer, characterized in that said binder includes a softener constituted by one or more natural or synthetic waxes and esters of said waxes having a low melting point and in a proportion ranging between 20 and 50% of the mixture so as to lower the melting point of the mixture and to improve its penetration in said paper, said plasticizer being in a proportion not exceeding 5% of said mixture.
Claim 3
Dependent Claim
48 words
An inked element according to claim 1 characterised in that the resin is a terpene resin, the softener comprising a natural wax in a proportion ranging between 12 and 40% of the mixture and an esterified wax in a proportion ranging from 6 to 10% of the mixture.
Claim 4
Dependent Claim
23 words
An inked element according to claim 2, characterised in that the softener moreover comprises a paraffinic wax in a proportion not exceeding 10%.
Claim 5
Dependent Claim
68 words
An inked element according to claim 1 characterised in that the plasticizer is one of the following compounds: esters of phthalic or phosphoric acid with higher alcohols, dioctyl phthalate, didodecyl phthalate, tributyl phosphate, triisobutyl phosphate or another polymer, in a percentage ranging between 4 and 5%, so as to improve the fluidity of the melted layer and to facilitate the detachment of said binder from said base support.
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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) | 1987-08-14 | 1988-02-13 | 1988-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-14 | 1992-02-13 | 1992-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-14 | 1996-02-13 | 1996-08-14 | $7700.00 | Window Closed / Lapsed |