EP0076044A2
Expired / Lapsed
EP
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Thermosensitive inked element for non-impact printers
Assignee: Olivetti SpA
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Filing: 1982-09-02
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Granted: —
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Expires: 2002-09-02
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 4mm) 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
EP
Data Source
google_patents
Last Synchronized
2026-10-30 19:26
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: 10
Claim 1
Independent Claim
112 words
1 A thermosensitive inked element for non-impact printers of tehrmal type, comprisiong a base support of plastics material coated on one side with a thin layer 2 to 4p thick of a mixture transferable to paper when it is subjected to heat and pressure, the mixture comprising a pigment or dye, a binder having a relatively high melting point and a plasticizer having a low melting point, characterised in that binder is constituted by a thermoplastic resin and a softener constituted by one or more waxes and corresponding derivatives having a low melting point which is adapted to lower the melting point of the mixture and its penetration into the printing support.
Claim 2
Dependent Claim
112 words
1 A thermosensitive inked element for non-impact printers of tehrmal type, comprisiong a base support of plastics material coated on one side with a thin layer 2 to 4p thick of a mixture transferable to paper when it is subjected to heat and pressure, the mixture comprising a pigment or dye, a binder having a relatively high melting point and a plasticizer having a low melting point, characterised in that binder is constituted by a thermoplastic resin and a softener constituted by one or more waxes and corresponding derivatives having a low melting point which is adapted to lower the melting point of the mixture and its penetration into the printing support.
Claim 3
Dependent Claim
32 words
2 An inked element according to claim 1, characterised in that the waxes and corresponding derivatives are chosen from among the natural waxes, the synthetic waxes and the esters of those waxes.
Claim 4
Dependent Claim
27 words
3 An inked element according to claim 1 or 2, characterised in that the softener is in a proportion ranging between 20 and 50% of the mixture.
Claim 5
Dependent Claim
27 words
4 An inked element according to any of the preceding claims, characterised in that the resin is of hydrocarbon type with a softening point arount 100 C.
Claim 6
Dependent Claim
34 words
5 An inked element according to claim 4, characterised in that the resin is a terpene resin, the softener comprising a natural wax in a proportion ranging between 18 and 40% of the mixture.
Claim 7
Dependent Claim
29 words
6 An inked element according to claim 5, characterised in that the softener moreover comprises an esterified wax in a proportion ranging between 4 and 10% of the mixture.
Claim 8
Dependent Claim
24 words
7 An inked element according to claim 6, characterised in that the softener moreover comprises a paraffinic wax in a proportion not exceeding 10%.
Claim 9
Dependent Claim
50 words
8 An inked element according to any of the preceding claims, 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 10%.
Claim 10
Dependent Claim
32 words
9 An inked element according to any of the preceding claims, characterised in that the base support is in the form of a ribbon with a thickness ranging between 7 and 20µ
References Cited (Backward Citations)
No citation records indexed.
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