Patent US3784355A successfully refreshed from Google Patents.
US3784355A
Expired / Lapsed
US
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Solvent dyeing or solvent creaseproofing with steam and solvent vapor drying
Assignee: Imperial Chemical Industries Ltd
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Filing: 1971-11-08
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Granted: 1974-01-08
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Expires: 1991-11-08
Abstract
Abstract A process for the application of a finishing agent to a substrate which comprises treating the substrate with a solution, or a dispersion, or an emulsion of the finishing agent in an organic solvent and then treating the substrate with steam for a time sufficient to remove a major proportion of the organic solvent, and subsequently finally treating the substrate with superheated steam or with the vapor of an organic solvent.
Inventors
- 👤 B Fielding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:21
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/02; D06P5/04; D06P5/08; D06M; D06M23/00; D06M23/10; Y; Y10; Y10S; Y10S8/00; Y10S8/01
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
15 words
A process as claimed in claim 1 wherein the textile material is an unmade-up textile.
Claim 2
Dependent Claim
16 words
A process as claimed in claim 1 wherein the said solvent comprises a chlorinated hydrocarbon solvent.
Claim 3
Dependent Claim
16 words
A process as claimed in claim 3 wherein the chlorinated hydrocarbon solvent is trichloroethylene or perchloroethylene.
Claim 4
Dependent Claim
24 words
A process as claimed in claim 1 wherein the textile is finally treated with solvent vapour at a temperature of at least 120* C.
Claim 5
Dependent Claim
16 words
A process as claimed in claim 5 wherein the temperature is not greater than 200* C.
Claim 6
Dependent Claim
16 words
A process as claimed in claim 5 wherein the temperature is from 130* to 160* C.
Claim 7
Dependent Claim
26 words
A process as claimed in claim 1 wherein the textile is finally treated in a treatment vessel provided with means to heat the solvent vapour therein.
Claim 8
Dependent Claim
12 words
A process as claimed in claim 3 wherein the solvent is recovered.
Claim 9
Dependent Claim
25 words
A process as claimed in claim 1 wherein the final treatment with solvent vapour is for a period of from 30 seconds to 5 minutes.
References Cited (Backward Citations)
US1859084A
Cited
US3523749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |