US3909191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cold gelatin dye impregnation and sub-gelation warming to set dye
Assignee: Individual
•
Filing: 1973-05-25
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Granted: 1975-09-30
•
Expires: 1993-05-25
Abstract
Abstract The method and apparatus for dyeing textiles, including the dyeing of synthetic or partially synthetic textiles with disperse dyes, wherein a dye mixture is applied to the textile and subsequently maintained in a gelled but unfrozen condition during drying to prevent migration of the dye.
Inventors
- 👤 Lyle E Mccoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:14
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/34; D06P3/52; D06P3/54; D06B; D06B21/00; D06P1/00; D06P1/0004; D06P1/0016; D06P1/44; D06P1/46
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
99 words
IN THE METHOD OF DYEING TEXTILES, THE STEPS WHICH COMPRISES: PREPARING A MIXTURE OF DYE, GELATIN AND SOLVENT IN WHICH THE GELATION TEMPERATURE OF THE GELATIN IS ABOVE THE FREEZING TEMPERATURE OF THE SOLVENT: APPLYING THE MIXTURE TO TEXTILE METERIAL: MAINTAINING THE APPLIED MIXTURE AT A TEMPERATURE BETWEEN SAID GELATION AND FREEZING TEMPERATURE: REMOVING THE SOLVENT FROM THE MIXTURE TO RAISE THE GELATIN CONCENTRATION AND GELATION TEMPERATURE: RAISING THE MAINTAINED TEMPERATURE OF SAID MIXTURE BELOW SAID GELATION TEMPERATURE AS THE LATTER INCREASES TO ACCELARATE REMOVAL OF SOLVENT: APPLYING HEAT TO COMPLETE DYE REACTION: AND REMOVING GELATIN FROM THE TEXTILE.
Claim 2
Dependent Claim
99 words
IN THE METHOD OF DYEING TEXTILES, THE STEPS WHICH COMPRISES: PREPARING A MIXTURE OF DYE, GELATIN AND SOLVENT IN WHICH THE GELATION TEMPERATURE OF THE GELATIN IS ABOVE THE FREEZING TEMPERATURE OF THE SOLVENT: APPLYING THE MIXTURE TO TEXTILE METERIAL: MAINTAINING THE APPLIED MIXTURE AT A TEMPERATURE BETWEEN SAID GELATION AND FREEZING TEMPERATURE: REMOVING THE SOLVENT FROM THE MIXTURE TO RAISE THE GELATIN CONCENTRATION AND GELATION TEMPERATURE: RAISING THE MAINTAINED TEMPERATURE OF SAID MIXTURE BELOW SAID GELATION TEMPERATURE AS THE LATTER INCREASES TO ACCELARATE REMOVAL OF SOLVENT: APPLYING HEAT TO COMPLETE DYE REACTION: AND REMOVING GELATIN FROM THE TEXTILE.
Claim 3
Dependent Claim
28 words
The method of dyeing textiles according to claim 1, further characterized in maintaining said applied mixture at a wet bulb temperature adjacent to and below said gelation temperature.
Claim 4
Dependent Claim
38 words
The method of dyeing textiles according to claim 2, further characterized in raising the maintained temperature of said mixture while maintaining the mixture wet bulb temperature below said gelation temperature as the latter increases to accelerate said drying.
Claim 5
Dependent Claim
19 words
The method of dyeing textiles according to claim 1, further characterized in effecting said solvent removal by air flow.
Claim 6
Dependent Claim
25 words
The method of dyeing textiles according to claim 1, further characterized in continuously effecting said mixture application, solvent removal, temperature raising, heating, and gelatin removal.
Claim 7
Dependent Claim
24 words
The method of dyeing textiles according to claim 1, further characterized in effecting said application of heat by introducing steam to effectively exclude oxygen.
Claim 8
Dependent Claim
18 words
The method of dyeing textiles according to claim 1, further characterized in effecting said gelatin removal by washing.
Claim 9
Dependent Claim
40 words
The method of dyeing textiles according to claim 1, further characterized in removing solvent sufficiently to form an outer gelatin skin and applying heat to complete the dye reaction before complete removal of solvent, to minimize the requireD solvent removal.
References Cited (Backward Citations)
US1923043A
Cited
US2014007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |