SU151738A1 - Method for producing pigment monoazo dyes - Google Patents

Method for producing pigment monoazo dyes

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Publication number
SU151738A1
SU151738A1 SU758445A SU758445A SU151738A1 SU 151738 A1 SU151738 A1 SU 151738A1 SU 758445 A SU758445 A SU 758445A SU 758445 A SU758445 A SU 758445A SU 151738 A1 SU151738 A1 SU 151738A1
Authority
SU
USSR - Soviet Union
Prior art keywords
monoazo dyes
producing pigment
nitro
pigment
monoazo
Prior art date
Application number
SU758445A
Other languages
Russian (ru)
Inventor
А.Н. Высокосов
Н.Г. Лаптев
Original Assignee
А.Н. Высокосов
Н.Г. Лаптев
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by А.Н. Высокосов, Н.Г. Лаптев filed Critical А.Н. Высокосов
Priority to SU758445A priority Critical patent/SU151738A1/en
Application granted granted Critical
Publication of SU151738A1 publication Critical patent/SU151738A1/en

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Description

где R - ароматический остаток, содержащий нитро-, мето-кси-, галоид-, метильную группы и другие заместители, не сообщающие водорастворимость .where R is an aromatic residue containing nitro, methoxy, halogen, methyl groups and other substituents that do not impart water solubility.

№ 151738- 2 Пример . 12,2 г 1-(4-карбоМоилфенил)-3-метил-5-пиразолона раствор ют в 600 мл воды и 0,06 г мол едкого натра. Добавл ют 13 г кристаллического ацетата натри  и полученный раствор нейтрализуют уксусной кислотой. К полученной суспензии добавл ют при 15-20° постепенно , в течение часа, раствор 3-:нитро-4-диазоа:Низола, полученного из 0,05 г мол З-нитро-4-аминоанизола. Смесь перемешивают 1 час пр.и той же температуре, затем нагревают до кипени  и фильтруют.No. 151738-2 Example. 12.2 g of 1- (4-carboMoylphenyl) -3-methyl-5-pyrazolone is dissolved in 600 ml of water and 0.06 g of sodium hydroxide. 13 g of crystalline sodium acetate was added and the resulting solution was neutralized with acetic acid. To the resulting suspension, a solution of 3-: nitro-4-diazo: Nizol, obtained from 0.05 g mol 3-nitro-4-aminoanisole, is gradually added over 15-20 ° C. The mixture is stirred for 1 hour at the same temperature and then heated to boiling and filtered.

Осадок красител  на фильтре промывают гор чей водой до бесцветного фильтрата. Получают оранжевый пигмент, окрашивающий поливинилхлорид в красно-оранжевый цвет, обладающий хорошей миграционной у.стойчивостью, термостойкостью и светопрочностью.The dye precipitate on the filter is washed with hot water to a colorless filtrate. An orange pigment is obtained, dyeing polyvinyl chloride in red-orange color, which has good migration stability, heat resistance and light resistance.

Аналогично получают из 2,5-дихлора«илина, 2-нитрО анилина,2-нитро-4-толуидина такие же прочные, но менее глубоко окрашенные моноазопигменты .Similarly, the same strong, but less deeply colored monoazo pigments are obtained from 2,5-dichloroyl or 2-nitro-aniline, 2-nitro-4-toluidine.

Предмет «зоб.ретени The subject of "goiter.

Способ получени  пигментных моноазокрасителей, прочных к миграции и пригодных дл  окраски поливинилхлорида, путем сочетани  диазотированных ароматических аминов с соединени ми, содержащими группировку - CONH - , отличающийс  тем, что, с целью расширени  гаммы оттенков получаемых окрасок, в качестве азосоставл ющей примен ют 1-(4-карбомоил1фенил)-3-метил-5-пиразолон.The method of obtaining pigment monoazo dyes, durable to migration and suitable for dyeing polyvinyl chloride, by combining diazotized aromatic amines with compounds containing the group CONH -, characterized in that, in order to expand the range of shades of the obtained colors, 1- (4-carbomoyl 1-phenyl) -3-methyl-5-pyrazolone.

SU758445A 1962-01-03 1962-01-03 Method for producing pigment monoazo dyes SU151738A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU758445A SU151738A1 (en) 1962-01-03 1962-01-03 Method for producing pigment monoazo dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU758445A SU151738A1 (en) 1962-01-03 1962-01-03 Method for producing pigment monoazo dyes

Publications (1)

Publication Number Publication Date
SU151738A1 true SU151738A1 (en) 1962-11-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU758445A SU151738A1 (en) 1962-01-03 1962-01-03 Method for producing pigment monoazo dyes

Country Status (1)

Country Link
SU (1) SU151738A1 (en)

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