DE227319C - - Google Patents
Info
- Publication number
- DE227319C DE227319C DENDAT227319D DE227319DA DE227319C DE 227319 C DE227319 C DE 227319C DE NDAT227319 D DENDAT227319 D DE NDAT227319D DE 227319D A DE227319D A DE 227319DA DE 227319 C DE227319 C DE 227319C
- Authority
- DE
- Germany
- Prior art keywords
- indigo
- parts
- white
- preparations
- dryness
- 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.)
- Active
Links
- 238000002360 preparation method Methods 0.000 claims description 6
- VIFKLIUAPGUEBV-UHFFFAOYSA-N 2-(3-hydroxy-1H-indol-2-yl)-1H-indol-3-ol Chemical compound N1C2=CC=CC=C2C(O)=C1C1=C(O)C2=CC=CC=C2N1 VIFKLIUAPGUEBV-UHFFFAOYSA-N 0.000 claims description 5
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical class [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 claims description 3
- -1 indigo white alkali salts Chemical class 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 229920001353 Dextrin Polymers 0.000 description 3
- 239000004375 Dextrin Substances 0.000 description 3
- 229940097275 Indigo Drugs 0.000 description 3
- 241001062009 Indigofera Species 0.000 description 3
- 235000000177 Indigofera tinctoria Nutrition 0.000 description 3
- 235000019425 dextrin Nutrition 0.000 description 3
- JVBXVOWTABLYPX-UHFFFAOYSA-L Sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000006188 syrup Substances 0.000 description 2
- 235000020357 syrup Nutrition 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000000126 substance Substances 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
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
- C09B67/0077—Preparations with possibly reduced vat, sulfur or indigo dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Medicinal Preparation (AREA)
- Coloring (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE Qm. GRUPPECLASS Qm. GROUP
Patentiert im Deutschen Reiche vom 11. November 1909 ab. Patented in the German Empire on November 11, 1909.
'. In den letzten Jahren haben die Indigweißpräparate eine große Bedeutung gewonnen, da sie den Indigo im reduzierten Zustand enthalten und infolgedessen jederzeit gebrauchsfertig sind. Die bisher bekannten Präparate weisen indessen leicht den Nachteil auf, daß sie mehr oder weniger unreduzierten Indigo enthalten. '. In recent years, the indigo white preparations have gained great importance, as they contain the indigo in a reduced state and are therefore ready to use at any time. The previously known preparations, however, easily have the disadvantage that they contain more or less unreduced indigo.
Es wurde nun gefunden, daß man indigofreie Indigweißpräparate erhält, wenn man Lösungen von Indigweißalkalisalzen unter Zusatz von löslichen Hydrosulfiten zweckmäßig im Vakuum zur Trockne eindampft. Diese Präparate besitzen den weiteren Vorteil, daßIt has now been found that indigo-free indigo white preparations are obtained if Solutions of indigo white alkali salts with the addition of soluble hydrosulfites are advisable evaporated to dryness in vacuo. These preparations have the further advantage that
sie infolge ihres Gehaltes an Hydrosulfit selbst in sauerstoffhaltigem Wasser leicht und vollkommen löslich sind und eine Küpenführung ohne weitere Zusätze und ohne Abwarten der Gärung ermöglichen. Um die für die vollkommene Haltbarkeit der Produkte vorteilhafte völlige Entwässerung zu erleichtern, ist es zweckmäßig, das Eindampfen in dünnen Schichten oder unter Zusatz von Stoffen, welche ein Schäumen und eine Blasenbildung der Masse bewirken, wie Dextrin, Sulntzelluloseablauge usw., vorzunehmen ; ferner kann man auch Sirup oder ähnliche Körper hinzusetzen.they are easy and even in oxygenated water due to their hydrosulphite content are completely soluble and a vat management without further additives and without waiting allow fermentation. To ensure complete drainage, which is beneficial for the perfect shelf life of the products facilitate the evaporation in thin layers or with the addition of substances that cause foaming and cause blistering of the mass, such as dextrin, sulnt cellulose waste liquor, etc. to carry out ; you can also add syrup or similar bodies.
Beispiel I. 500Teile einer Indigweißlösung, enthaltend 100 Teile Indigweiß und 23,5 Teile Ätznatron, werden mit 20 Teilen Natriumhydrosulfit, vorteilhaft in emaillierten Gefäßen, möglichst rasch und in dünnen Schichten im Vakuum zur Trockne eingedampft. Die Temperatur wird anfangs nicht wesentlich über 40 ° gehalten; nach dem Festwerden kann sie noch einige Zeit auf etwa 70 ° gesteigert werden.Example I. 500 parts of an indig white solution containing 100 parts indig white and 23.5 parts Caustic soda, with 20 parts of sodium hydrosulfite, advantageously in enamelled vessels, if possible evaporated to dryness quickly and in thin layers in a vacuum. The temperature is initially not kept significantly above 40 °; after solidification it can be increased to about 70 ° for some time.
Man erhält ein dunkelrot gefärbtes, blasiges Produkt, welches sich in Wasser ohne Indigoabscheidung löst.A dark red colored, vesicular product is obtained which dissolves in water without depositing indigo solves.
Beispiel II. 500Teile Indigweißlösung, enthaltend 100 Teile Indigweiß und 23,5 Teile Ätznatron, werden mit 25 Teilen Natriumhydrosulfit und 32 Teilen Dextrin im Vakuum zur Trockne eingedampft. An Stelle von Dextrin kann auch Sirup, Sulntzelluloseablauge usw. verwendet werden.Example II. Containing 500 parts of indigo white solution 100 parts of indigo white and 23.5 parts of caustic soda are combined with 25 parts of sodium hydrosulfite and 32 parts of dextrin evaporated to dryness in vacuo. Instead of dextrin, you can also use syrup, sulnt cellulose waste liquor, etc. be used.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE227319C true DE227319C (en) |
Family
ID=487787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT227319D Active DE227319C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE227319C (en) |
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0
- DE DENDAT227319D patent/DE227319C/de active Active
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