US3841830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blending neutral dyeing 1:2 premetallized azo dyed acid modified acrylic fiber with the same fiber undyed and disperse or cationic dyeing the blend
Assignee: Japan Exlan Co Ltd
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Filing: 1972-06-05
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Granted: 1974-10-15
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Expires: 1992-06-05
Abstract
Abstract An acrylic fiber containing acid groups but no basic groups is dyed with a neutral dyeing 1:2 type premetallized acid dye in a bath containing at least one water-soluble inorganic monovalent metal salt, divalent metal salt or ammonium salt. The resultant dyed material is deeply colored and of excellent fastness, is characterized by minimum dye migration, and is therefore useful in the manufacture of multi-colored dyed acrylic fiber materials.
Inventors
- 👤 T Shibukawa
- 👤 M Hoten
- 👤 N Hayasaki
- 👤 S Mizutani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:45
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/36; D06P1/44; D06P1/673; D06P1/67333; D06P1/67341; D06P1/6735; D06P1/67375; D06P3/00; D06P3/70; D06P3/74
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
157 words
IN A PROCESS FOR PREPARING MULTI-COLORED ACRYLIC FIBER TEXTILE MATERIAL WHICH COMPRISES DYEING A FIRST TEXTILE MATERIAL OF AN ACRYLIC FIBER CONTAINING AN AUGMENTED NUMBER OF ACID GROUPS BUT NO BASIC GROUPS, COMBINING THE DYED TEXTILE MATERIAL WITH A SECOND TEXTILE MATERIAL OF AN UNDYED ACRYLIC FIBER CONTAINING AN AUGMENTED NUMBER OF ACID GROUPS BUT NO BASIC GROUPS BY BLENDING THE DYE AND UNDYED TEXTILE MATERIALS, AND THEREAFTER DYEING THE RESULTANT MATERIAL WITH A CATIONIC OR DISPERSE DYE, THE IMPROVEMENT ACCORDING TO WHICH THE DYEING OF THE FIRST TEXTILE MATERIAL IS CONDUCTED AT A TEMPERATURE OF AT LEAST 100*C IN A FIRST DYE BATH CONTAINING A DILUTE SOLUTION OF A NEUTRAL DYEING 1:2 TYPE PRE-METALLIZED ACID DYE AND 0.5-5.0 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE DHY BATH, OF AT LEAST ONE SALT SELECTED FROM THE GROUP CONSISTING OF CALCIUM CHLORIDE, BARIUM CHLORIDE, ZINC CHLORIDE, MAGNESIUM CHLORIDEE CADMIUM CHLORIDE, ZINC SULFATE, MAGNESIUM SULFATE, ZINC NI-
Claim 2
Dependent Claim
157 words
IN A PROCESS FOR PREPARING MULTI-COLORED ACRYLIC FIBER TEXTILE MATERIAL WHICH COMPRISES DYEING A FIRST TEXTILE MATERIAL OF AN ACRYLIC FIBER CONTAINING AN AUGMENTED NUMBER OF ACID GROUPS BUT NO BASIC GROUPS, COMBINING THE DYED TEXTILE MATERIAL WITH A SECOND TEXTILE MATERIAL OF AN UNDYED ACRYLIC FIBER CONTAINING AN AUGMENTED NUMBER OF ACID GROUPS BUT NO BASIC GROUPS BY BLENDING THE DYE AND UNDYED TEXTILE MATERIALS, AND THEREAFTER DYEING THE RESULTANT MATERIAL WITH A CATIONIC OR DISPERSE DYE, THE IMPROVEMENT ACCORDING TO WHICH THE DYEING OF THE FIRST TEXTILE MATERIAL IS CONDUCTED AT A TEMPERATURE OF AT LEAST 100*C IN A FIRST DYE BATH CONTAINING A DILUTE SOLUTION OF A NEUTRAL DYEING 1:2 TYPE PRE-METALLIZED ACID DYE AND 0.5-5.0 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE DHY BATH, OF AT LEAST ONE SALT SELECTED FROM THE GROUP CONSISTING OF CALCIUM CHLORIDE, BARIUM CHLORIDE, ZINC CHLORIDE, MAGNESIUM CHLORIDEE CADMIUM CHLORIDE, ZINC SULFATE, MAGNESIUM SULFATE, ZINC NI-
Claim 3
Dependent Claim
17 words
The improvement as claimed in claim 1, wherein the first textile material is dyed at 100*-130* C.
References Cited (Backward Citations)
US2636802A
Cited
US3273956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |