Mitsui Toatsu Chemicals, Incorporated

Akitoshi Igata

Hitoshi Koshida

Keisuke Takuma

Tsukasa Ohyama

Isamu Ghoda

Tamio Mikoda

Masao Imai

Yasushi Shimokawa

Takayuki Nakayama

Hiroshi Suwa

Tetsuo Sakagawa

Fumio Fujii

Koji Kurahara

Toshihiro Koga

A magenta dyestuff for sublimation heat transfer recording is here disclosed which is represented by the formula (I) ##STR1## wherein R.sup.1 is an alkyl group or alkoxy group, R.sup.2 is an alkyl group, aryl group or halogenoalkyl group, R.sup.3 is an alkyl group, aryl group, alkoxyalkyl group, cyanoalkyl group, alkylcarboxyalkyl group or halogenoalkyl group, X is a hydrogen atom or alkoxy group, and Y is a hydrogen atom, alkoxy group, alkylcarbonylamino group or alkyl-sulfonylamino group, and this dyestuff is excellent in solubility, ribbon shelf stability, dye-fixing properties, durability and light resistance.

Transfer sheet for sublimation recording

Disclosed are magenta anthraquinone dyestuffs for sublimation thermaltransfer printing of one of the formulas ##STR1## wherein R is a halogen atom, methyl or methoxy; wherein R.sub.1 is a hydrogen atom, hydroxyl, a halogen atom, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms; and wherein R.sub.2 is a hydrogen atom, a halogen atom, alkyl or 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms, with the proviso that in formula (3) either R.sub.1 or R.sub.2 is not a hydrogen atom.

Sublimation thermal transfer printing sheet comprising novel magenta

Disclosed are a novel compound represented by the formula ##STR1## and compositions for sublimation transfer records and for color toners containing the same.

Isopropyl 1-amino-4-m-toluidinoanthraquinone-2-carboxylate

Sublimation thermaltransfer printing sheet comprising novel magenta

Denim cotton warp yarns are rope-dyed with a benzoquinone dye of formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.1 ', R.sub.2 ' and R.sub.3 ' commonly or independently represent a hydrogen atom, a halogen atom, alkyl, cycloalkyl, alkenyl, aryl, aralkyl, alkoxyl or alkoxyalkyl alone or in combination with a red .DELTA..sup.2,3' -biindolin-3,2'-dione dye and/or a blue indigoid dye or sequentially with the latter dye.

Benzoquinone dye, rope-dyeing dye compositions, cotton rope-dyeing

Disclosed are a novel compound represented by the formula ##STR1## a composition for sublimation transfer record containing the above-mentioned compound, and a composition for color toner containing the above-mentioned compound.

Isopropyl 1-amino-4-m-toluidinoanthraquinone-2-carboxylate, cyan

A novel negative charge color toner composition for electrostatic charge development having good light resistance and copy sharpness which contains, as a dyestuff in a toner resin, a 1-amino-2-phenoxy- or 2-thiophenoxy-4-hydroxyanthraquinone whose phenoxy or thophenoxy group is substituted and/or a 1,4-diamino-2,3-phenoxyanthraquinone whose phenoxy group is substitited, which can be conventionally produced.

Color toner composition

Surface active agents are obtained by reacting, in water as solvent and under normal pressure, cresol, formaldehyde, sodium sulfite, and 2-hydroxynaphthalene. The surface active agents exhibit excellent high dispersing power upon finely grinding with disperse dyes and in use at high temperatures whereby they are effective in giving level dyeing to polyester fibers in high temperature dyeing processes and give little or no cellulose staining in dyeing a polyester/cellulose blended yarn or fabric by the thermosol process.

Growing community of inventors

Ohmuta, Japan

Akitoshi Igata