EP0442823A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Thermal printing medium and label incorporating the same
Assignee: Tomoegawa Co Ltd
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Filing: 1991-02-15
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Granted: —
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Expires: 2011-02-15
Abstract
Abstract A thermal printing medium having high mechanical strength, and a label and tag incorporating such a thermal printing medium is disclosed. In addition to high mechanical strength, the thermal printing medium of the present invention provides for excellent printing density and resolution, for which reason the medium is very applicable to bar codes and the like. The thermal printing medium which includes a multilayer structure consisting of a support substrate comprised of polyolefin type cross-laminate film; a thermal developing layer over the above mentioned under layer, comprised chiefly of colorless or lightly colored leuco-type dye and color developer agent; and a protective layer over the above mentioned thermal developing layer.
Inventors
- 👤 Akira C/O Tomoegawa Paper Co. Ltd. Suzuki
- 👤 Takayuki C/O Tomoegawa Paper Co. Ltd. Norizuki
- 👤 Yasuhiro C/O Tomoegawa Paper Co. Ltd. Yamanashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 11:33
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/02; B; B41; B41M; B41M5/00; B41M5/26; B41M5/30; G09F3/08; G09F3/10; G09F2003/0202; G09F2003/0208; G09F2003/021; G09F2003/0254; G09F2003/0255
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
73 words
A thermal printing medium comprising: a) layer formed support substrate comprised of polyolefin type cross-laminate film and having an upper and lower surface; b) thermal developing layer formed over an upper surface of said support substrate, said thermal developing layer including at least one of colorless and lightly colored leuco-type dye, and color developer agent as principle components thereof; and c) protective layer formed over an upper surface of said thermal developing layer.
Claim 2
Dependent Claim
96 words
A thermal printing medium comprising: a) layer formed support substrate comprised of polyolefin type cross-laminate film and having an upper and lower surface; b) under layer formed over an upper surface of said support substrate, said under layer including hydrophobic polymer as a principle component thereof; c) thermal developing layer formed over an upper surface of said under layer, said thermal developing layer including at least one of colorless and lightly colored leuco-type dye, and color developer agent as principle components thereof; and d) protective layer formed over an upper surface of said thermal developing layer.
Claim 3
Dependent Claim
26 words
A thermal printing medium in accordance with claim 2 above, wherein said hydrophobic polymer has a glass transition temperature (Tg) of no greater than 50° C.
Claim 4
Dependent Claim
101 words
A thermal printing medium comprising: a) layer formed support substrate comprised of polyolefin type cross-laminate film and having an upper and lower surface; b) thermal developing layer formed over an upper surface of said support substrate, said thermal developing layer including at least one of colorless and lightly colored leuco-type dye, and color developer agent as principle components thereof; c) protective layer formed over an upper surface of said thermal developing layer; and d) peelable sheet affixed to said lower surface of said support substrate via and adhesive layer between said peelable sheet and said lower surface of said support substrate.
Claim 5
Dependent Claim
124 words
A thermal printing medium comprising: a) layer formed support substrate comprised of polyolefin type cross-laminate film and having an upper and lower surface; b) under layer formed over an upper surface of said support substrate, said under layer including hydrophobic polymer as a principle component thereof; c) thermal developing layer formed over an upper surface of said under layer, said thermal developing layer including at least one of colorless and lightly colored leuco-type dye, and color developer agent as principle components thereof; d) protective layer formed over an upper surface of said thermal developing layer; and e) peelable sheet affixed to said lower surface of said support substrate via and adhesive layer between said peelable sheet and said lower surface of said support substrate.
Claim 6
Dependent Claim
26 words
A thermal printing medium in accordance with claim 5 above, wherein said hydrophobic polymer has a glass transition temperature (Tg) of no greater than 50° C.
Claim 7
Dependent Claim
99 words
A label comprising: a) layer formed support substrate comprised of polyolefin type cross-laminate film and having an upper and lower surface; b) thermal developing layer formed over an upper surface of said support substrate, said thermal developing layer including at least one of colorless and lightly colored leuco-type dye, and color developer agent as principle components thereof; c) protective layer formed over an upper surface of said thermal developing layer; and d) peelable sheet affixed to said lower surface of said support substrate via and adhesive layer between said peelable sheet and said lower surface of said support substrate.
Claim 8
Dependent Claim
122 words
A label comprising: a) layer formed support substrate comprised of polyolefin type cross-laminate film and having an upper and lower surface; b) under layer formed over an upper surface of said support substrate, said under layer including hydrophobic polymer as a principle component thereof; c) thermal developing layer formed over an upper surface of said under layer, said thermal developing layer including at least one of colorless and lightly colored leuco-type dye, and color developer agent as principle components thereof; d) protective layer formed over an upper surface of said thermal developing layer; and e) peelable sheet affixed to said lower surface of said support substrate via and adhesive layer between said peelable sheet and said lower surface of said support substrate.
Claim 9
Dependent Claim
24 words
A label in accordance with claim 8 above, wherein said hydrophobic polymer has a glass transition temperature (Tg) of no greater than 50° C.
Claim 10
Dependent Claim
99 words
A tag comprising: a) layer formed support substrate comprised of polyolefin type cross-laminate film and having an upper and lower surface; b) thermal developing layer formed over an upper surface of said support substrate, said thermal developing layer including at least one of colorless and lightly colored leuco-type dye, and color developer agent as principle components thereof; c) protective layer formed over an upper surface of said thermal developing layer; and d) peelable sheet affixed to said lower surface of said support substrate via and adhesive layer between said peelable sheet and said lower surface of said support substrate.
Claim 11
Dependent Claim
122 words
A tag comprising: a) layer formed support substrate comprised of polyolefin type cross-laminate film and having an upper and lower surface; b) under layer formed over an upper surface of said support substrate, said under layer including hydrophobic polymer as a principle component thereof; c) thermal developing layer formed over an upper surface of said under layer, said thermal developing layer including at least one of colorless and lightly colored leuco-type dye, and color developer agent as principle components thereof; d) protective layer formed over an upper surface of said thermal developing layer; and e) peelable sheet affixed to said lower surface of said support substrate via and adhesive layer between said peelable sheet and said lower surface of said support substrate.
Claim 12
Dependent Claim
24 words
A tag in accordance with claim 11 above, wherein said hydrophobic polymer has a glass transition temperature (Tg) of no greater than 50° C.
References Cited (Backward Citations)
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