US4482350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactive dye composition for cellulose fiber
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1983-02-14
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Granted: 1984-11-13
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Expires: 2003-02-14
Abstract
Abstract A reactive dye composition which comprises a combination of 20 to 99% by weight of a dye represented by a free acid of the formula, ##STR1## and 1 to 80% by weight of an alkylnaphthalenesulfonic acid/formaldehyde condensate having a sulfonation degree of 50 to 150% and an average condensation degree of 1.1 to 3.0, which is very readily soluble in water and aqueous alkali liquors, resistant to coagulation when prepared into a color paste for printing, and useful for dyeing or printing cellulose fiber materials yellow with a high color yield, particularly by a one-bath pad dyeing method or printing method.
Inventors
- 👤 Takemi Tokieda
- 👤 Sadaharu Abeta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:41
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0072; D; D06; D06P; D06P1/00; D06P1/38; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
53 words
A reactive dye composition comprising a combination of 20 to 99% by weight of a dye represented by a free acid of the formula, ##STR6## and 1 to 80% by weight of an alkylnaphthalenesulfonic acid/formaldehyde condensate having a sulfonation degree of 50 to 150% and an average condensation degree of 1.1 to 3.0.
Claim 2
Dependent Claim
53 words
A reactive dye composition comprising a combination of 20 to 99% by weight of a dye represented by a free acid of the formula, ##STR6## and 1 to 80% by weight of an alkylnaphthalenesulfonic acid/formaldehyde condensate having a sulfonation degree of 50 to 150% and an average condensation degree of 1.1 to 3.0.
Claim 3
Dependent Claim
26 words
A reactive dye composition according to claim 1, wherein the alkylnapthalenesulfonic acid is at least one member selected from methyl-, ethyl-, propyl- and butylnaphthalene sulfonic acids.
Claim 4
Dependent Claim
30 words
A reactive dye composition according to claim 1, wherein the composition further comprises at least one member selected from hydrotropic agents, builders, electrolytes, dust-preventing agents, pH stabilizers and water softeners.
Claim 5
Independent Claim
65 words
A method for dyeing or printing cellulse fiber materials, which comprises using a reactive dye composition comprising a combination of 20 to 99% by weight of a dye represented by a free acid of the formula, ##STR7## and 1 to 80% by weight of an alkylnaphthalenesulfonic acid/formaldehyde condensate having a sulfonation degree of 50 to 150% and an average condensation degree of 1.1 to 3.0.
Claim 6
Independent Claim
65 words
A method for dyeing or printing cellulse fiber materials, which comprises using a reactive dye composition comprising a combination of 20 to 99% by weight of a dye represented by a free acid of the formula, ##STR7## and 1 to 80% by weight of an alkylnaphthalenesulfonic acid/formaldehyde condensate having a sulfonation degree of 50 to 150% and an average condensation degree of 1.1 to 3.0.
Claim 7
Independent Claim
125 words
A method for dyeing or printing cellulose fiber materials, which comprises dissolving a reactive dye composition comprising a combination of 20 to 99% by weight of a dye represented by a free acid of the formula, ##STR8## and 1 to 80% by weight of an alkylnaphthalenesulfonic acid/formaldehyde condensate having a sulfonation degree of 50 to 150% and an average condensation degree of 1.1 to 3.0 in water, adding water or a printing paste to the solution to prepare a dyeing medium having a predetermined dye concentration, adding an alkali and if desired additives to the medium, and contacting the fiber materials with the medium, followed by steam treatment or dry heat treatment or by allowing to stand to fix the dye to the fiber materials.
Claim 8
Independent Claim
125 words
A method for dyeing or printing cellulose fiber materials, which comprises dissolving a reactive dye composition comprising a combination of 20 to 99% by weight of a dye represented by a free acid of the formula, ##STR8## and 1 to 80% by weight of an alkylnaphthalenesulfonic acid/formaldehyde condensate having a sulfonation degree of 50 to 150% and an average condensation degree of 1.1 to 3.0 in water, adding water or a printing paste to the solution to prepare a dyeing medium having a predetermined dye concentration, adding an alkali and if desired additives to the medium, and contacting the fiber materials with the medium, followed by steam treatment or dry heat treatment or by allowing to stand to fix the dye to the fiber materials.
Claim 9
Dependent Claim
10 words
Cellulose fiber materials dyed by the method of claim 4.
Claim 10
Dependent Claim
10 words
Cellulose fiber materials dyed by the method of claim 5.
References Cited (Backward Citations)
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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) | 1987-11-13 | 1988-05-14 | 1988-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-13 | 1992-05-14 | 1992-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-13 | 1996-05-14 | 1996-11-13 | $7700.00 | Window Closed / Lapsed |