Sumitomo Chemical Company, Limited

Takemi Tokieda

Nobuzi Nishimura

Utazi Sawa

Toshiyuki Araki

Yasuo Tezuka

Yasuyoshi Ueda

Sadaharu Abeta

Shin-ichi Yabushita

Shun-ichi Hayakawa

Bunzi Tsukise

Naoki Harada

Yutaka Kayane

Kunihiko Imada

Tetsuya Miyamoto

Noriaki Yamauchi

Shuhei Hashizume

Masaki Sunami

Shinei Ikeou

Shigeru Kawabata

Suketsugu Koumura

Hiroyuki Suzuki

Seizo Konishi

Nobuaki Kawamura

Masayuki Tsuji

Tadashi Yamamoto

Koiti Ishii

A phthalocyanine monoazo compound which is represented by the following formula (I): ##STR1## wherein Pc represents a phthalocyanine group; M represents nickel, cobalt or copper; R.sub.1 represents a hydrogen atom or a lower alkyl group; R.sub.2 and R.sub.3 represent a hydrogen atom, a lower alkyl group, a lower alkoxy group or a sulfo group; R.sub.4 represents a hydrogen or a lower alkyl group; A represents a group containing a triazine group or a pyrazole group and/or --SO.sub.2 X wherein X represents --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 Y and Y represents a group splittable by the action of an alkali; p is a number of 0-2; q is a number of 1-3; r is a number of 1-2; p+q+r is 4 or less or which is a salt of the compound of formula (I).

Fiber reactive phthalocyanine monoazo compounds having improved dyeing

A phthalocyanine monoazo compound which is represented by the following formula (I): ##STR1## wherein the variable radicals have the meaning given in the description, and the phthalocyanine monoazo compound has green color.

Phthalocyanine monoazo compounds and a process for producing the same

A reactive dye composition containing a reactive dye and a salt of polyoxyethylene substituted-phenyl ether ester produces excellent solubility in water and in an aqueous alkali solution and can be used to dye a fiber material uniformly.

Reactive dye composition and method for dyeing or printing fiber

An aqueous liquid dye composition comprising a dye represented by the following formula in a free acid form, ##STR1## wherein Y is --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 X in which X is a group splittable by the action of an alkali, and a pH buffer, the dye being in the form of a lithium salt, and the liquid dye composition having a pH value of from 3 through 7 and a dye content of from 5 through 50% by weight based on the weight of the liquid dye composition, which can be stored stably for a long period of time even at a low temperature such as 0.degree. C. or lower, and a high temperature such as 40.degree. C. or higher.

Aqueous liquid composition of vinylsulfone type reactive dyes in lithium

An improved process for producing sulfuric acid semiesters of the formula:

Process for producing aminoaryl-.beta.-sulfatoethylsulfone

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.

Reactive dye composition for cellulose fiber

A reactive dye composition containing a dye mixture comprising 60 to 97 wt. % of C.I. Reactive Orange 16 and 40 to 3 wt. % of C.I. Reactive Orange 7, and 5 to 100 parts by weight per 100 parts by weight of said dye mixture of a naphthalenesulfonic acid/formaldehyde condensate having a sulfonation degree of 100 to 200%, which is very readily soluble in water and an aqueous alkaline solution and useful for dyeing cellulose fibers with a high color yield.

Reactive dye composition and its use for dyeing

A dye composition comprising at least one disazo dye of the formula (I) expressed in the form of a free acid, ##STR1## wherein each X.sub.1 and X.sub.2 is --SO.sub.2 CH.sub.2 CH.sub.2 OCOCH.sub.3, --SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H or --SO.sub.2 CH.dbd.CH.sub.2, provided that at least one of X.sub.1 and X.sub.2 is --SO.sub.2 CH.sub.2 CH.sub.2 OCOCH.sub.3, and at least one disazo dye of the formula (II) expressed in the form of a free acid, ##STR2## Wherein each Y.sub.1 and Y.sub.2 is --SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H, --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 OH, provided that one of Y.sub.1 and Y.sub.2 is --SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H or --SO.sub.2 CH.dbd. CH.sub.2, is produced by diazotizing a mixture of 4-aminophenyl-.beta.-sulfatoethylsulfone and 4-aminophenyl-.beta.acetoxyethylsulfone in a weight ratio of 30 to 70: 70 to 30 with a nitrite, and coupling the resulting mixture of the diazonium salts with 1-amino-8-naphthol-3,6-disulfonic acid. The dye composition is suitable for dyeing natural or regenerated cellulosic fiber materials in black.

Disazo dye composition

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Nara, Japan

Takemi Tokieda