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US 4,540,418 AGranted
Reactive dye composition
AssigneeSumitomo Chemical Company, Limited
InventorsKatsumasa Otake, Takashi Omura, Yutaka Kayane, Kunihiko Imada
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AssigneeSumitomo Chemical Company, Limited
InventorsKatsumasa Otake, Takashi Omura, Yutaka Kayane, Kunihiko Imada
Estimating the term…
A reactive dye composition comprising at least one alkylnaphthalenesulfonic acid/formaldehyde condensate and a compound represented by the following formula, ##STR1## wherein D is an organic dye residue having at least one sulfo group, R.sub.1 and R.sub.2 are independently a hydrogen atom or a C.sub.1 to C.sub.4 alkyl group unsubstituted or substituted with a halogen atom or a hydroxy, cyano, alkoxy, carboxy, carbamoyl, alkoxycarbonyl, alkylcarbonyloxy, sulfo or sulfamoyl group, A is a phenylene group unsubstituted or substituted with one or two substituents selected from chlorine and bromine atoms and methyl, ethyl, methoxy, ethoxy and sulfo groups, or a naphthylene group unsubstituted or substituted with one sulfo group, X is a halogen atom, and Y is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z in which Z is a group capable of being split by an alkali, which composition is very readily soluble in water and aqueous alkaline solution, so that a dyeing or printing of cellulose fiber materials can be effectively carried out even by one-bath pad dyeing or one-phase printing methods to give a dyed product of a deep color having excellent levelness and no speck.
A reactive dye composition comprising at least one alkylnaphthalenesulfonic acid/formaldehyde condensate and a compound represented by the following formula, ##STR24## wherein D is an organic dye residue having at least one sulfo group, R.sub.1 and R.sub.2 are independently a hydrogen atom or a C.sub.1 to C.sub.4 alkyl group unsubstituted or substituted with a halogen atom or a hydroxy, cyano, alkoxy, carboxy, carbamoyl, alkoxycarbonyl, alkylcarbonyloxy, sulfo or sulfamoyl group, A is a phenylene group unsubstituted or substituted with one or two substituents selected from chlorine and bromine atoms and methyl, ethyl, methoxy, ethoxy and sulfo groups, or a naphthylene group unsubstituted or substituted with one sulfo group, X is a halogen atom, and Y is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z in which Z is group capable of being split by an alkali.
A process for producing a reactive dye composition, which comprises admixing at least one alkylnaphthalenesulfonic acid/formaldehyde condensate and a compound represented by the following formula, ##STR25## wherein D is an organic dye residue having at least one sulfo group, R.sub.1 and R.sub.2 are independently a hydrogen atom or a C.sub.1 to C.sub.4 alkyl group unsubstituted or substituted with a halogen atom or a hydroxy, cyano, alkoxy, carboxy, carbamoyl, alkoxycarbonyl, alkylcarbonyloxy, sulfo or sulfamoyl group, A is a phenylene group unsubstituted or substituted with one or two substituents selected from chlorine and bromine atoms and methyl, ethyl, methoxy, ethoxy and sulfo groups, or a naphthylene group unsubstituted or substituted with one sulfo group, X is a halogen atom, and Y is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 Z in which Z is a group capable of being split by an alkali.
A process for dyeing or printing cellulose fiber materials, which comprises carrying out the dyeing or printing at a temperature of 10.degree. to 200.degree. C. for 15 seconds to 48 hours in the presence of an alkali using a reactive dye composition comprising at least one alkylnaphthalenesulfonic acid/formaldehyde condensate and a compound represented by the following formula, ##STR26## wherein D is an organic dye residue having at least one sulfo group, R.sub.1 and R.sub.2 are independently a hydrogen atom or a C.sub.1 to C.sub.4 alkyl group unsubstituted or substituted with a halogen atom or a hydroxy, cyano, alkoxy, carboxy, carbamoyl, alkoxycarbonyl, alkylcarbonyloxy, sulfo or sulfamoyl group, A is a phenylene group unsubstituted or substituted with one or two substituents selected from chlorine and bromine atoms and methyl, ethyl, methoxy, ethoxy and sulfo groups, or a naphthylene group unsubstituted or substituted with one sulfo group, X is a halogen atom, and Y is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z in which Z is a group capable of being split by an alkali.
Dependencies are inferred from the claim text.
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No related US applications are recorded in the indexed filing history.
Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions: preparations with anionic…
Natural fiber dyeing: cellulose textile
Organic dyes or closely-related compounds for producing dyes
Technical subjects covered by former uspc cross-reference art collections [xracs] and digests
Term ended 16 Apr 2004 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
The present invention relates to a reactive dye composition. More specifically, the invention relates to a reactive dye composition which is well soluble in water and an aqueous alkaline solution and useful for dyeing or printing cellulose fiber materials.
As well known, so-called one-bath pad dyeing methods, such as a one-bath pad-batch method, a one-bath pad-dry method and a one-bath pad steam method, and one-phase printing methods have been effectively applied for dyeing natural and regenerated cellulose fiber materials. However, in the preparation of a padding liquor and a printing paste usable for such one-bath pad dyeing and one-phase printing methods, respectively, the reactive dyes should be sufficiently soluble in an aqueous alkaline solution. For example, in the preparation of a padding liquor usable for the one-bath pad-batch method, about 100 parts by weight of a reactive dye should be soluble in 1000 parts by weight of an aqueous alkaline solution comprising an alkali such as sodium hydroxide, sodium carbonate or trisodium phosphate, and an electrolyte.
In an exhaustion dyeing method which is also effective for dyeing cellulose fiber materials, reactive dyes are required to be well soluble in an aqueous solution comprising a large amount of an electrolyte and an alkali.
The present invention is explained in more detail with reference to the following Examples, which are only illustrative and are not intended to limit the scope of the present invention. In the Examples, parts are by weight.
Sixty five parts of a compound of the following formula: ##STR8## was thoroughly mixed with 10 parts of diethylnaphthalenesulfonic acid/formaldehyde condensate (sodium salt, sulfonation degree 100%, average condensation degree 2.5), 24 parts of monoethylnaphthalenesulfonic acid/formaldehyde condensate (sodium salt, having the same sulfonation and average condensation degrees as above), and 1 part of mineral oil emulsion to prepare a dye composition.
(a) One hundred grams of the dye composition thus obtained was dissolved into hot water and cooled to 25.degree. C. After adding 15 ml of 32.5% aqueous solution of sodium hydroxide and 150 g of water-glass (50Be) to the solution, the resulting mixture was diluted with water to make the volume one liter at 25.degree. C. Immediately, the solution thus obtained was used as a padding liquor to pad a cotton fabric. The padded cotton fabric was batched up, tightly sealed with a polyethylene film and allowed to stand at 20.degree. C. for 20 hours in a room. The dyed fabric was rinsed with cold water and then with hot water, soaped with a boiling detergent solution, again rinsed with cold water and dried. Thus, there was obtained a very deep scarlet product having no speck.