US4302202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile treating composition and method of use thereof
Assignee: Northwestern Laboratories Inc
•
Filing: 1979-10-09
•
Granted: 1981-11-24
•
Expires: 1999-10-09
Abstract
Abstract A composition useful as a dyeing, fixing and leveling agent for acid dyestuffs on polyamide fibers, as a reserving agent in dyeing of polyamide-cellulosic blends with direct dyes and as an aftertreating agent for improving wet fastness and perspiration resistance of polyamides dyed with an acid dyestuff consists essentially of an aqueous solution of 60-85% by weight of solute of phenolsulfonic acid-formaldehyde condensate and 15-40% by weight of solute of an alkylene glycol of up to 3-10 carbon atoms or a polyoxyethylene or -thio glycol or molecular weight up to 1000.
Inventors
- 👤 Jeffery L. Sumner
- 👤 Arthur L. Tinsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:02
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/41; D06M15/412; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/56; D06P1/64; D06P1/651; D06P1/65168; D06P1/65187; D06P3/00; D06P3/02; D06P3/04; D06P3/24; D06P3/241; D06P5/00; D06P5/02; D06P5/04; D06P5/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
93 words
A method for uniform dyeing of polyamide fibers or fabrics and leveling and fixing acid dyes thereto comprising adding to a dye bath containing an acid dye a composition consisting essentially of an aqueous solution of 60-85% by weight of solute of phenolsulfonic acid-formaldehyde condensate and 15-40% by weight of solute of an alkylene glycol of up to 3-10 carbon atoms or a polyoxyethylene or -thio glycol of molecular weight up to 1000, in an amount of 0.5-15% by weight of added solute and dyeing the polyamide fiber or fabric at the boil.
Claim 2
Independent Claim
93 words
A method for uniform dyeing of polyamide fibers or fabrics and leveling and fixing acid dyes thereto comprising adding to a dye bath containing an acid dye a composition consisting essentially of an aqueous solution of 60-85% by weight of solute of phenolsulfonic acid-formaldehyde condensate and 15-40% by weight of solute of an alkylene glycol of up to 3-10 carbon atoms or a polyoxyethylene or -thio glycol of molecular weight up to 1000, in an amount of 0.5-15% by weight of added solute and dyeing the polyamide fiber or fabric at the boil.
Claim 3
Dependent Claim
19 words
The method of claim 1, wherein the composition contains polyethylene glycol of molecular weight from 62 to about 600.
Claim 4
Dependent Claim
18 words
The method of claim 1, wherein the composition contains polythioglycol of molecular weight from 122 to about 1000.
Claim 5
Independent Claim
97 words
A method of reserving polyamide in a polyamide-cellulosic fiber or fabric blend from the action of a direct dye comprising treating the fiber of fabric, before dyeing with a direct dye, with a bath containing a composition consisting essentially of an aqueous solution of 60-85% by weight of solute of phenolsulfonic acid-formaldehyde condensate and 15-40% by weight of solute of an alkylene glycol of up to 3-10 carbon atoms or a polyoxyethylene or -thio glycol of molecular weight up to 1000, in an amount of 0.5-15% by weight of added solute at 110°-130° F. for 10-30 minutes.
Claim 6
Independent Claim
97 words
A method of reserving polyamide in a polyamide-cellulosic fiber or fabric blend from the action of a direct dye comprising treating the fiber of fabric, before dyeing with a direct dye, with a bath containing a composition consisting essentially of an aqueous solution of 60-85% by weight of solute of phenolsulfonic acid-formaldehyde condensate and 15-40% by weight of solute of an alkylene glycol of up to 3-10 carbon atoms or a polyoxyethylene or -thio glycol of molecular weight up to 1000, in an amount of 0.5-15% by weight of added solute at 110°-130° F. for 10-30 minutes.
Claim 7
Dependent Claim
19 words
The method of claim 4, wherein the glycol is polyethylene glycol of molecular weight from 62 to about 600.
Claim 8
Dependent Claim
19 words
The method of claim 4, wherein the glycol is a polythioglycol of molecular weight from 122 to about 1000.
Claim 9
Independent Claim
115 words
A method of improving wet fastness and resistance to perspiration of polyamide fibers dyed with an acid dyestuff, comprising adding to an exhausted dye bath from dyeing the polyamide fiber or fabric with an acid dyestuff a composition consisting essentially of an aqueous solution of 60-85% by weight of solute of phenolsulfonic acid-formaldehyde condensate and 15-40% by weight of solute of an alkylene glycol of up to 3-10 carbon atoms or a polyoxyethylene or -thio glycol of molecular weight up to 1000, in an amount of 0.5-15% by weight of added solute, adjusting pH of the resulting bath to 4.5-5.5 and heating the polyamide fiber in the thus-produced bath at 180°-200° F. for 15-45 minutes.
Claim 10
Independent Claim
115 words
A method of improving wet fastness and resistance to perspiration of polyamide fibers dyed with an acid dyestuff, comprising adding to an exhausted dye bath from dyeing the polyamide fiber or fabric with an acid dyestuff a composition consisting essentially of an aqueous solution of 60-85% by weight of solute of phenolsulfonic acid-formaldehyde condensate and 15-40% by weight of solute of an alkylene glycol of up to 3-10 carbon atoms or a polyoxyethylene or -thio glycol of molecular weight up to 1000, in an amount of 0.5-15% by weight of added solute, adjusting pH of the resulting bath to 4.5-5.5 and heating the polyamide fiber in the thus-produced bath at 180°-200° F. for 15-45 minutes.
Claim 11
Dependent Claim
20 words
The method of claim 7, wherein the glycol is a polyethylene glycol of molecular weight from 62 to about 600.
Claim 12
Dependent Claim
19 words
The method of claim 7, wherein the glycol is a polythioglycol of molecular weight from 122 to about 1000.
References Cited (Backward Citations)
US2726920A
Cited
US3178309A
Cited
US3167517A
Cited
US3377130A
Cited
US3118723A
Cited
GB975307A
Cited
US3669611A
Cited
US3493981A
Cited
US3845113A
Cited
US3619124A
Cited
US3781169A
Cited
US3993439A
Cited
US3788807A
Cited
US3933424A
Cited
JPS514380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-23 | 1985-05-25 | 1985-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-23 | 1989-05-25 | 1989-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-23 | 1993-05-25 | 1993-11-24 | $7700.00 | Window Closed / Lapsed |