Patent US3990840A successfully refreshed from Google Patents.
US3990840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and device for the dyeing and/or finishing of textile plane articles
Assignee: Hoechst AG
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Filing: 1975-10-08
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Granted: 1976-11-09
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Expires: 1995-10-08
Abstract
Abstract Process for the dyeing and/or finishing textile of plane articles made of synthetic or natural fibers or of mixtures of such fibers, by applying in a foamed form and at room temperature onto the goods with the acid of a gaseous propellant, a liquor containing at least one dyestuff and/or finishing agent suitable for the corresponding type of fiber, if required, chemical products necessary for their fixation as well as surface-active substances and subjecting the material thus treating for fixing the dyestuffs and/or finishing agents optionally after the decomposition or destruction of the foaming layer and if necessary by means of oxydating agents to the action of heat or subjecting it to a wet development operation by passing it through a bath consisting of an acid or an alkali, or dwelling it at room temperature or at a moderately raised temperature.
Inventors
- 👤 Hans-Ulrich von der Eltz
- 👤 Walter Gulden
- 👤 Richard Bruno Wassner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:43
CPC Classifications
D; D06; D06P; D06P7/00; D06P1/00; D06P1/0096; D06P1/96; D06P1/965; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922; Y10S8/924; Y10S8/927; Y10S8/929
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
117 words
In a process for the dyeing and/or textile finishing of flat articles made of synthetic or natural fiber materials or mixtures of such fibers, with at least one dyestuff and/or textile finishing agent suitable for the type of fiber in said article, and for the fixation of the dyestuff and of the finishing agent, the improvement of which comprises: applying, continuously, a liquor containing the said dyestuff and/or finishing agent to the goods, at room temperature, in the form of a foam having a gaseous propellant, so as to produce on the surface of the fibers, a layer of the foamed treating agent, the height of which foamed layer is controlled according to the desired liquor pick-up.
Claim 2
Dependent Claim
117 words
In a process for the dyeing and/or textile finishing of flat articles made of synthetic or natural fiber materials or mixtures of such fibers, with at least one dyestuff and/or textile finishing agent suitable for the type of fiber in said article, and for the fixation of the dyestuff and of the finishing agent, the improvement of which comprises: applying, continuously, a liquor containing the said dyestuff and/or finishing agent to the goods, at room temperature, in the form of a foam having a gaseous propellant, so as to produce on the surface of the fibers, a layer of the foamed treating agent, the height of which foamed layer is controlled according to the desired liquor pick-up.
Claim 3
Dependent Claim
23 words
A process as claimed in claim 1 wherein multicolor effects according to the type of shadow dyeings are obtained by a different doctoring.
Claim 4
Dependent Claim
32 words
A process as claimed in claim 1, wherein multicolor effects are obtained by applying mixable and unmixable foams and/or by applying color foams of different durability or consistence in form of designs.
Claim 5
Dependent Claim
22 words
A process as claimed in claim 1, wherein the foam nozzles are regulated according to a program for imitating determined dyeing techniques.
Claim 6
Dependent Claim
32 words
A process as claimed in claim 1, wherein after application of the foam to the material the height of the foam is adjusted by means of a doctor knife or a roll.
Claim 7
Dependent Claim
24 words
A process as claimed in claim 5, wherein the height of the foam is adjusted to different levels over different parts of the material.
Claim 8
Dependent Claim
19 words
A process as claimed in claim 5, wherein, after adjusting the height of the foam, the foam is destroyed.
Claim 9
Dependent Claim
17 words
A process as claimed in claim 7, wherein the foam is self-decomposing after a period of time.
Claim 10
Dependent Claim
18 words
A process as claimed in claim 7, wherein the foam is destroyed by the application of a defoamer.
Claim 11
Dependent Claim
21 words
A process as claimed in claim 1, wherein the average vesicle size of the foam is from 0.01 to 0.1 mm.
Claim 12
Dependent Claim
38 words
A process as claimed in claim 1, wherein the liquid portion of the foam consists of an organic solvent or a mixture of organic solvents or of an azeotropic mixture of one or more organic solvents and water.
Claim 13
Dependent Claim
20 words
A process as claimed in claim 1, wherein two or more foams which are miscible with one another are applied.
Claim 14
Dependent Claim
20 words
A process as claimed in claim 12, wherein two or more foams which are miscible with one another are applied.
Claim 15
Dependent Claim
21 words
A process as claimed in claim 12, wherein two or more foams which are not miscible with one another are applied.
Claim 16
Dependent Claim
17 words
A process as claimed in claim 12, wherein two or more foams of different stability are applied.
Claim 17
Dependent Claim
17 words
A process as claimed in claim 12, wherein two or more foams of different consistency are applied.
Claim 18
Dependent Claim
19 words
A process as claimed in claim 1, wherein the application of the foam is regulated by a predetermined program.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-09 | 1980-05-10 | 1980-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-09 | 1984-05-10 | 1984-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-09 | 1988-05-10 | 1988-11-09 | $7700.00 | Window Closed / Lapsed |