US4388077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for washing fabric
Assignee: WE GREER Ltd 14704-119 AVENUE EDMONTON ALBERTA
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Filing: 1981-08-07
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Granted: 1983-06-14
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Expires: 2001-08-07
Abstract
Abstract A composition is provided for washing fabric, particularly denim, prior to sale. The composition includes an amphoteric surfactant, a builder which ensures that the surfactant in a washing solution, is initially in an anionic state, and a pH builder which causes the pH of the washing solution to decrease to thereby change the amphoteric surfactant to its cationic state. In its anionic state the surfactant acts as a wetting agent to encourage such actions as pre-shrinking and dye-bleeding by the washing solution. In its cationic state the surfactant can be adsorbed onto the fabric so as to exhibit fabric softening and anti-static effects. A lubricant is preferably included in the composition to reduce uneven dye-bleeding caused by fabric to fabric abrasion in the wash cycle.
Inventors
- 👤 Jules B. Ruck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:09
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/88; C11D1/90
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
94 words
A method of washing denim, containing excess dye and sizing, comprising: washing the denim in an aqueous solution containing an amphoteric surfactant, selected from the group consisting of at least one of a dicarboxylic aliphatic acid derivative of about 8 to 18 carbon atoms and a disubstituted imidazoline of about 6 to 22 carbon atoms, one or more builders, selected from the group consisting of perborate salts, phosphate salts, and organic builders, a carbonate salt pH builder, a metal carboxylate salt lubricant, and a light mineral oil lubricant; and rinsing and drying the denim.
Claim 2
Independent Claim
94 words
A method of washing denim, containing excess dye and sizing, comprising: washing the denim in an aqueous solution containing an amphoteric surfactant, selected from the group consisting of at least one of a dicarboxylic aliphatic acid derivative of about 8 to 18 carbon atoms and a disubstituted imidazoline of about 6 to 22 carbon atoms, one or more builders, selected from the group consisting of perborate salts, phosphate salts, and organic builders, a carbonate salt pH builder, a metal carboxylate salt lubricant, and a light mineral oil lubricant; and rinsing and drying the denim.
Claim 3
Dependent Claim
39 words
The method as set forth in claim 1 wherein: the surfactant is selected from the group consisting of a distearyl imidazoline, a cocohydroxyethyl imidazoline, a dicarboxylic caprylic derivative sodium salt, a dicarboxylic linoleic derivative, and a dicarboxylic myristic derivative.
Claim 4
Dependent Claim
24 words
The method as set forth in claim 2 wherein: the builder is selected from the group of sodium perborate, trisodium phosphate and carboxymethyl cellulose.
Claim 5
Dependent Claim
26 words
The method as set forth in claim 3 wherein: the builder is a carbonate salt selected from the group consisting of sodium carbonate and sodium bicarbonate.
Claim 6
Dependent Claim
75 words
The composition as set forth in claim 1 wherein: the amphoteric surfactant is provided in an amount between about 0.5 to 10 percent by weight; the builder is provided in an amount between about 1.0 to 25 percent by weight; the carbonate salt pH builder is provided in an amount between about 10 to 70 percent by weight; and the lubricants together are provided in an amount between about 0.5 to 15 percent by weight.
Claim 7
Dependent Claim
74 words
A composition for washing denim, containing excess dye and sizing, comprising: an amphoteric surfactant selected from the group consisting of a dicarboxylic aliphatic acid derivative of 8 to 18 carbon atoms and a disubstituted imidazoline of 6 to 22 carbon atoms; one or more builders selected from the group consisting of perborate salts, phosphate salts, and organic builders; a carbonate salt pH builder; a metal carboxylate salt lubricant; and a light mineral oil lubricant.
Claim 8
Dependent Claim
74 words
A composition for washing denim, containing excess dye and sizing, comprising: an amphoteric surfactant selected from the group consisting of a dicarboxylic aliphatic acid derivative of 8 to 18 carbon atoms and a disubstituted imidazoline of 6 to 22 carbon atoms; one or more builders selected from the group consisting of perborate salts, phosphate salts, and organic builders; a carbonate salt pH builder; a metal carboxylate salt lubricant; and a light mineral oil lubricant.
Claim 9
Dependent Claim
39 words
The composition as set forth in claim 6 wherein: the surfactant is selected from the group consisting of a distearyl imidazoline, a cocohydroxyethyl imidazoline, a dicarboxylic caprylic derivative sodium salt, a dicarboxylic linoleic derivative, and a dicarboxylic myristic derivative.
Claim 10
Dependent Claim
24 words
The composition as set forth in claim 7 wherein: the builder is selected from the group of sodium perborate, trisodium phosphate and carboxymethyl cellulose.
Claim 11
Dependent Claim
24 words
The composition as set forth in claim 7 wherein: the carbonate salt is selected from the group consisting of sodium carbonate and sodium bicarbonate.
Claim 12
Dependent Claim
73 words
The composition as set forth in claim 6 wherein: the amphoteric surfactant is provided in an amount between about 0.5 to 10 percent by weight; the builder is provided in an amount between about 1.0 to 25 percent by weight; the pH builder is provided in an amount between about 10 to 70 percent by weight; and the lubricants together are provided in an amount between about 0.5 to 15 percent by weight.
Claim 13
Dependent Claim
73 words
The composition as set forth in claim 7 wherein: the amphoteric surfactant is provided in an amount between about 0.5 to 10 percent by weight; the builder is provided in an amount between about 1.0 to 25 percent by weight; the pH builder is provided in an amount between about 10 to 70 percent by weight; and the lubricants together are provided in an amount between about 0.5 to 15 percent by weight.
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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) | 1986-06-13 | 1986-12-13 | 1987-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-13 | 1990-12-13 | 1991-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-13 | 1994-12-13 | 1995-06-14 | $7700.00 | Window Closed / Lapsed |