US3880579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermo-printing process
Assignee: P Lamaire & Cie Ets SA
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Filing: 1973-03-19
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Granted: 1975-04-29
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Expires: 1993-03-19
Abstract
Abstract Improvements to the process known as thermo-printing of fabric, consisting of carrying out a second partial vaporisation of the dyes already fixed to the material, when this material has been separated from the inert support upon which the dyes are fixed and has fallen to a temperature below the vaporisation temperature, by means of a heat flux circulating from the printed surface of the material towards the non-printed surface.
Inventors
- 👤 Henri Renaut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:35
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/025; B41M5/035; B41M5/0358; D; D06; D06P; D06P5/00; D06P5/003; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/921; Y10S8/922; Y10S8/924; Y10S8/929; Y10S8/933
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
179 words
AN IMPROVED PROCESS FOR THE THERMOPRINTING OF FABRICS PROVIDING PENETRATION OF THE PRINTED DESING INTO AND THROUGH THE BODY OF THE FABRIC, WHEREIN DESIGNS IN VAPORIZABLE DYES ARE TRANSFERRED BY HEAT FROM A MOVING CARRIER SHEET ONTO THE SURFACE OF THE MOVING FABRIC, WHICH COMPRISES THE STEPS OF: A. CONTACTING THE CARRIER SHEET, BEARING DESIGNS IN VAPORIZABLE DYES, WITH THE SURFACE OF THE FABRIC; B. HEATING SAID CARRIER SHEET TO VAPORIZE SAID DYES; C. TRANSFERRING THE DESIFN FROM SAID CARRIER TO THE SURFACE OF SAID FABRIC BY CONDENSING THE VAPORS OF SAID DYES THEREON; D. SEPARATING THE CARRIER SHEET FROM THE DESIGN-BEARING SURFACE OF SAID FABRIC AND COOLING SAID FABRIC E. DISTRIBUTING THE DYE-DESIGN, CONDENSED ON SAID FABRIC, THROUGH THE BODY OF SAID FABRIC BY A SECOND HEATING STEP COMPRISING THE APPLICATION OF A PRESSURIZED HEATED GAS STREAM DIRECTED SUBSTANTIALLY PERPENDICULAR TO THE SURFACE AND THROUGH THE BODY OF SAID FABRIC, TO FORCE VAPORS OF SAID DYES FROM THE SURFACE OF THE FABRIC SUBSTANTIALLY PERPENDICULARLY TO THE SURFACE AND INTO THE BODY OF SAID COOLED FABRIC TO CONDENSE THEREIN.
Claim 2
Dependent Claim
179 words
AN IMPROVED PROCESS FOR THE THERMOPRINTING OF FABRICS PROVIDING PENETRATION OF THE PRINTED DESING INTO AND THROUGH THE BODY OF THE FABRIC, WHEREIN DESIGNS IN VAPORIZABLE DYES ARE TRANSFERRED BY HEAT FROM A MOVING CARRIER SHEET ONTO THE SURFACE OF THE MOVING FABRIC, WHICH COMPRISES THE STEPS OF: A. CONTACTING THE CARRIER SHEET, BEARING DESIGNS IN VAPORIZABLE DYES, WITH THE SURFACE OF THE FABRIC; B. HEATING SAID CARRIER SHEET TO VAPORIZE SAID DYES; C. TRANSFERRING THE DESIFN FROM SAID CARRIER TO THE SURFACE OF SAID FABRIC BY CONDENSING THE VAPORS OF SAID DYES THEREON; D. SEPARATING THE CARRIER SHEET FROM THE DESIGN-BEARING SURFACE OF SAID FABRIC AND COOLING SAID FABRIC E. DISTRIBUTING THE DYE-DESIGN, CONDENSED ON SAID FABRIC, THROUGH THE BODY OF SAID FABRIC BY A SECOND HEATING STEP COMPRISING THE APPLICATION OF A PRESSURIZED HEATED GAS STREAM DIRECTED SUBSTANTIALLY PERPENDICULAR TO THE SURFACE AND THROUGH THE BODY OF SAID FABRIC, TO FORCE VAPORS OF SAID DYES FROM THE SURFACE OF THE FABRIC SUBSTANTIALLY PERPENDICULARLY TO THE SURFACE AND INTO THE BODY OF SAID COOLED FABRIC TO CONDENSE THEREIN.
Claim 3
Dependent Claim
72 words
A thermo-printing process according to claim 1, in which air, from a pressurized source and raised to a temperature higher than the vaporisation temperature of the dyes, is blown through the body of said fabric from the design bearing surface of the fabric towards the virgin surface, across the whole width of the moving material, but over successively very small segments of its length as the fabric moves past said gas source.
Claim 4
Dependent Claim
32 words
A thermo-printing process according to claim 2 in which the flow speed of the heated gas stream through said successive fabric length segments is high relative to the movement of the fabric.
References Cited (Backward Citations)
US1819264A
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US1895243A
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US3490371A
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US3455687A
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US3454764A
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US3768280A
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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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |