DE498116C - Process for the production of sulfur dye pastes - Google Patents
Process for the production of sulfur dye pastesInfo
- Publication number
- DE498116C DE498116C DEC36820D DEC0036820D DE498116C DE 498116 C DE498116 C DE 498116C DE C36820 D DEC36820 D DE C36820D DE C0036820 D DEC0036820 D DE C0036820D DE 498116 C DE498116 C DE 498116C
- Authority
- DE
- Germany
- Prior art keywords
- production
- sulfur dye
- dye pastes
- addition
- pastes
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Landscapes
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Description
Verfahren zur Herstellung von Schwefelfarbstoffpasten Bis jetzt war es möglich, Schwefelfarbstoffe in Teigform nur in bestimmten Stärken herzustellen, da man sonst Gefahr lief, daß sich bei mehr oder weniger starker Verdünnung Wasser und besonders bei erhöhten Zusätzen von Salzen Kristalle ausschieden.Process for making sulfur dye pastes Until now it is possible to produce sulfur dyes in dough form only in certain strengths, otherwise there was a risk that water would form with more or less strong dilution and crystals separated out, especially with increased addition of salts.
Es wurde nungefunden, daß durch Kohlenhydrate, welche durch Alkalien aufgeschlossen werden bzw. quellen, homogene Pasten b Uewonnen werden, welche selbst bei längerem Stehen keine Kristalle oder Wasiser abscheiden. Selbst bei Zusatz von so viel Schwefelnatrium, als zum Färben nötig ist, findet keine ,##,usscheidung statt. Man kann solche Schwefelfarbstoffpasten genau wie Direktfarbstoffe unter Zusatz von Salz und So-da färben. Überraschend ist es, daß selbst bei hohen Salzzusätzen keine Ausflockung des Kolloidsstattfindet. Der Zusaitz von gequollener Stärke hat noch den Vorteil, daß die Färbungen besonders bei schwerer egalisierenden Farbstoffen gleichmäßiger ausfallen und außerdem der Faden geschont wird.It has not been found that by carbohydrates, which by alkalis be digested or swell, homogeneous pastes are obtained, which themselves Do not deposit any crystals or washer when standing for a long time. Even with the addition of no, ##, is excreted as much sodium sulphide as is necessary for dyeing instead of. Such sulfur dye pastes can be used just like direct dyes under Color addition of salt and so-da. It is surprising that even with high salt additions there is no flocculation of the colloid. The addition of swollen starch has still have the advantage that the dyeings are especially difficult to level with dyes turn out more evenly and also the thread is spared.
Durch Zusatz baktericider Mittel, wie zum Beispiel Rohkresol oder Toluolsulfochloramidnatrium, wird Schimmelbildung verhindert. Letzteres Mittel hat gleichzeitig die Wirkung, die Stärke beim Erhitzen der Farbflotte in lösliche Stärke überzuführen. Die Kristallausscheidung kann durch Zusatz von Schwefel, welcher sich mit vorhandenem Schwefelalkall zu Polysulfid vereinigt, noch weiter erschwert werden. Ein Zusatz hygroskopischer Mittel, wie Melasse, Glycerin, Pottasche usw., ist zweckmäßig, um derWasserverdunstung entgegenzuwirken.By adding bactericidal agents such as raw cresol or Toluenesulfochloramide sodium, prevents mold formation. The latter means has at the same time the effect, the strength when heating the dye liquor into soluble starch convict. The crystal precipitation can by adding sulfur, which is combined with the existing sulfur alkali to form polysulphide, are made even more difficult. It is advisable to add hygroscopic agents such as molasses, glycerine, potash, etc. to counteract water evaporation.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC36820D DE498116C (en) | 1925-06-17 | 1925-06-17 | Process for the production of sulfur dye pastes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC36820D DE498116C (en) | 1925-06-17 | 1925-06-17 | Process for the production of sulfur dye pastes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE498116C true DE498116C (en) | 1930-05-17 |
Family
ID=7022478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEC36820D Expired DE498116C (en) | 1925-06-17 | 1925-06-17 | Process for the production of sulfur dye pastes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE498116C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE865591C (en) * | 1946-02-01 | 1953-02-02 | Ciba Geigy | Process for the production of reducing agents for dyeing purposes and dye preparations containing them |
-
1925
- 1925-06-17 DE DEC36820D patent/DE498116C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE865591C (en) * | 1946-02-01 | 1953-02-02 | Ciba Geigy | Process for the production of reducing agents for dyeing purposes and dye preparations containing them |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE498116C (en) | Process for the production of sulfur dye pastes | |
DE564738C (en) | Process for the production of sulphite pulp | |
DE637274C (en) | Process for the production of dyed artificial threads, ribbons, strips or the like from viscose | |
DE710373C (en) | Process for the regeneration of viscose spun balls containing ammonium sulphate and sodium sulphate | |
DE398406C (en) | Process for the production of aluminum formate solutions | |
DE441101C (en) | Process for the production of easily soluble dyestuff preparations | |
DE507969C (en) | Process for the production of pulp | |
DE360001C (en) | Process for the production of colored threads from viscose solutions | |
DE691176C (en) | Process for printing fabrics with anthraquinone dyes | |
DE385768C (en) | Process for the production of structures from viscose | |
DE413778C (en) | Process for the production of organic bismuth compounds | |
DE340212C (en) | Process for the extraction of sugar and dextrins from wood and other cellulose-containing material | |
DE251569C (en) | ||
DE966067C (en) | Process for the production of colored structures from regenerated cellulose | |
DE453938C (en) | Dye preparation for dyeing cellulose acetate or fibrous materials containing it | |
AT33316B (en) | Process for the production of etching reserves under vat dyes on dyeings that can be etched by means of hydrosulfites. | |
DE637908C (en) | Process for the production of coarse-grain ammonium sulphate | |
DE376760C (en) | Process for the production of pulp from peat | |
DE739466C (en) | Screen mesh | |
DE88847C (en) | ||
DE431509C (en) | Process for the extraction of alkali carbonate from alkali sulphate by the wet method by reacting the dissolved sulphates with freshly precipitated alkaline earth carbonate, in particular barium carbonate | |
DE536808C (en) | Stain for glass leather | |
DE207593C (en) | ||
DE697853C (en) | Process for the production of coeruleinsulfonic acid | |
DE557446C (en) |