SU151738A1 - Method for producing pigment monoazo dyes - Google Patents
Method for producing pigment monoazo dyesInfo
- 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
Links
Landscapes
- Coloring (AREA)
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.
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 |
Family
ID=48306389
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) |
-
1962
- 1962-01-03 SU SU758445A patent/SU151738A1/en active
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