CH86196A - A method of making a black dye. - Google Patents
A method of making a black dye.Info
- Publication number
- CH86196A CH86196A CH86196DA CH86196A CH 86196 A CH86196 A CH 86196A CH 86196D A CH86196D A CH 86196DA CH 86196 A CH86196 A CH 86196A
- Authority
- CH
- Switzerland
- Prior art keywords
- black dye
- added
- making
- sodium sulphide
- water
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- UFBJCMHMOXMLKC-UHFFFAOYSA-N 2,4-dinitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O UFBJCMHMOXMLKC-UHFFFAOYSA-N 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- DVHCUTKQUSEJRY-UHFFFAOYSA-N 2-methyl-3-nitrosophenol Chemical compound CC1=C(O)C=CC=C1N=O DVHCUTKQUSEJRY-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B49/00—Sulfur dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Procédé de fabrication d'un colorant noir. La présente invention se rapporte à titi procédé de fabrication d'un colorant noir pré sentant les qualités du colorant noir ordinaire au dinitrophénol mais avec une meilleure ré sistance au chlore. Suivant ce procédé, on fait agir du sulfure de sodium sur du nitrisocrésol. puis après réaction on introduit du dinitro- phénol et après condensation, on ajoute du sulfure de sodium additionné d'eau, on opère une nouvelle réduction en chauffant à 85" le mélange, puis on ajoute du soufre, et porte à ébullition jusqu'à formation complète du colorant noir.
Ce procédé peut être rais en oeuvre, par exemple, de la façon suivante.
On fait agir 35 à 70 kg de sulfure de sodium cristallisé, additionné de leur poids d'eau, sur 35 kg de nitrisocrésol.
Après réaction, on introduit 45 kg de dinitrophénol et ensuite après condensation, 140 kg de sulfure de sodium additionnés de leur poids d'eau. On opère une nouvelle ré duction en chauffant à 85" centigrades le mélange, puis on ajoute 70 kg de soufre et l'on porte à ébullition jusqu'à formation conr- plète de noir en faisant refluer l'eau vaporisée après condensation dans l'appareil par l'inter médiaire d'titr dispositif approprié.
L'opération dure de 18 à 24 heures. On précipite ensuite le colorant formé par addition d'acide ou par titi courant d'air ou de chlore gazeux. Le produit ainsi obtenu est liltré et séché pour être ainsi employé en teinture après dissolution dans un sulfure alcalin.
A method of making a black dye. The present invention relates to a process for the manufacture of a black dye having the qualities of the ordinary black dye to dinitrophenol but with better resistance to chlorine. According to this process, sodium sulphide is allowed to act on nitrisocresol. then after reaction, dinitrophenol is introduced and after condensation, sodium sulphide is added to which water is added, a further reduction is carried out by heating the mixture to 85 ", then sulfur is added and brought to the boil until complete formation of the black dye.
This process can be implemented, for example, as follows.
35 to 70 kg of crystallized sodium sulphide, added to their weight of water, are made to act on 35 kg of nitrisocresol.
After reaction, 45 kg of dinitrophenol are introduced and then after condensation, 140 kg of sodium sulphide plus their weight of water. A further reduction is carried out by heating the mixture to 85 "centigrade, then 70 kg of sulfur is added and the mixture is brought to the boil until complete black formation is carried out by refluxing the vaporized water after condensation in the tank. apparatus by means of a suitable device.
The operation lasts 18 to 24 hours. The dye formed is then precipitated by addition of acid or by a current of air or of gaseous chlorine. The product thus obtained is filtered off and dried in order to be thus used for dyeing after dissolution in an alkali sulphide.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH86196T | 1919-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH86196A true CH86196A (en) | 1920-08-02 |
Family
ID=4342709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH86196D CH86196A (en) | 1919-04-16 | 1919-04-16 | A method of making a black dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH86196A (en) |
-
1919
- 1919-04-16 CH CH86196D patent/CH86196A/en unknown
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