US3966400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and device for the irregular dyeing of textiles
Assignee: Hoechst AG
•
Filing: 1974-08-22
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Granted: 1976-06-29
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Expires: 1994-08-22
Abstract
Abstract Process for the irregular dyeing of textile material, preferably in a continuous operation, by applying a mixture of dyestuffs and salts containing crystal water in powder form irregularly onto the material and melting the salt by means of a heat treatment, the bondage between the dyestuff and the material to be dyed being brought about by means of the liquid phase which forms thereby, and then finishing the dyeing in the usual manner according to known methods for the fixation of the dyestuffs used.
Inventors
- 👤 Walter Birke
- 👤 Hans-Ulrich von der Eltz
- 👤 Franz Schon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:26
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/673; D06P1/67333; D06P1/6735; D06P1/67366; D06B; D06B11/00; D06B11/0056; D06B11/0063; D06B11/0079; D06B11/0089; D06B11/0093; D06B21/00; D06P1/0004; D06P1/0016; D06P1/0096; D06P1/02; D06P1/12; D06P5/00; D06P5/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
90 words
A process for the irregular dyeing of textile material, which comprises: applying a mixture of dyestuffs and salts containing crystal water in powder form irregularly onto the material and melting the salt by means of a heat treatment sufficient to melt and release water from said salts, the bondage between the dyestuffs and the material to be dyed being brought about by means of the liquid phase which forms thereby; and then finishing the dyeing in the usual manner according to known methods for the fixation of the dyestuffs used.
Claim 2
Dependent Claim
90 words
A process for the irregular dyeing of textile material, which comprises: applying a mixture of dyestuffs and salts containing crystal water in powder form irregularly onto the material and melting the salt by means of a heat treatment sufficient to melt and release water from said salts, the bondage between the dyestuffs and the material to be dyed being brought about by means of the liquid phase which forms thereby; and then finishing the dyeing in the usual manner according to known methods for the fixation of the dyestuffs used.
Claim 3
Dependent Claim
28 words
A process as claimed in claim 1, wherein the dyestuffs and salts containing crystal water are applied onto the material separately in powder form in any succession desired.
Claim 4
Dependent Claim
30 words
A process as claimed in claim 1, wherein in admixture with the dyestuff salt combination, chemicals or aids necessary for the fixation of the dyestuffs are applied onto the material.
Claim 5
Dependent Claim
15 words
A process as claimed in claim 1, wherein the textile material is a predyed material.
Claim 6
Dependent Claim
54 words
A process for the irregular dyeing of textile material, which comprises applying a mixture of a resist agent or chemical which destroys dyestuff and salts containing crystal water in powder form onto a predyed textile material and then heating the mixture in contact with said material to melt and release water from said salts.
Claim 7
Dependent Claim
54 words
A process for the irregular dyeing of textile material, which comprises applying a mixture of a resist agent or chemical which destroys dyestuff and salts containing crystal water in powder form onto a predyed textile material and then heating the mixture in contact with said material to melt and release water from said salts.
Claim 8
Dependent Claim
42 words
A process as recited in claim 1, werein one component of a coupling dyestuff is first applied evenly to the material and a second component is applied irregularly in admixture with said salts in powder form, for producing a pattern or design.
References Cited (Backward Citations)
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US2928712A
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US1527446A
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US3248219A
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US3726640A
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US3716330A
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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) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |