DE433413C - Method for preventing caking of Kuepen dye pastes - Google Patents

Method for preventing caking of Kuepen dye pastes

Info

Publication number
DE433413C
DE433413C DEB115736D DEB0115736D DE433413C DE 433413 C DE433413 C DE 433413C DE B115736 D DEB115736 D DE B115736D DE B0115736 D DEB0115736 D DE B0115736D DE 433413 C DE433413 C DE 433413C
Authority
DE
Germany
Prior art keywords
kuepen
pastes
preventing caking
dye
dye 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
Application number
DEB115736D
Other languages
German (de)
Inventor
Dr Ernst Theobald
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JG Farbenindustrie AG
Original Assignee
JG Farbenindustrie AG
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 JG Farbenindustrie AG filed Critical JG Farbenindustrie AG
Priority to DEB115736D priority Critical patent/DE433413C/en
Application granted granted Critical
Publication of DE433413C publication Critical patent/DE433413C/en
Expired legal-status Critical Current

Links

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Verhinderung des Zusammenbackens von Küpenfarbstoffpasten. Viele wasserunlösliche Küpenfarbstoffe zeigen die unangenehme Eigenschaft, daß sie nach kürzerem oder längerem Stehen aus ihren Pasten sich absetzen und dann oft zu zähen Massen zusammenbacken, die sich nur schwer «nieder zu homogenen Pasten anrühren lassen.Method for preventing caking of vat dye pastes. Many water-insoluble vat dyes show the unpleasant property that they after standing for a short or long time from their pastes settle and then often to to bake together tough masses which are difficult to stir down to form homogeneous pastes permit.

Es hat sich nun gezeigt, daß- dieses Zusammenbacken verhindert und in vielen Fällen auch das Absetzen vermieden werden kann, wenn man den Farbpasten geringe Mengen von Permanganaten zusetzt.It has now been shown that this caking prevents and In many cases the settling can also be avoided by using the color pastes adds small amounts of permanganates.

Beispiel i.Example i.

5oo Teile chloriertes Pyranthron in Teig (i oprozentig) werden unter gutem Rühren mit einer konzentrierten wäßrigen Lösung von o,25 Teilen Kaliumpermanganat versetzt. Die homogene Suspension bleibt sehr lange erhalten, und es tritt nur ein mäßiges Absetzen des Farbstoffs und kein Zusammenbacken ein.500 parts of chlorinated pyranthrone in dough (10 percent) are under good stirring with a concentrated aqueous solution of 0.25 parts of potassium permanganate offset. The homogeneous suspension remains for a very long time, and it just occurs moderate dye settling and no caking.

Beispiele. 5oo Teile N-Dihydro-i - 2 --2 - i'-Antlirachinonazin-Teig (ioprozentig) (s. S c 1i u 1 t z, Farbstofftabellen, 5. Aufl., S. 287 N r. 837) werden unter gutem Rühren mit einer konzentrierten wäßrigen Lösung von o,5 Teilen Kaliumpermanganat versetzt. Auch nach längerem Stehen läßt sich die Paste wieder leicht anrühren, während die nicht mit Permanganat versetzte Paste eine zähe Masse abgeschieden hat.Examples. 500 parts of N-dihydro-i - 2 --2 - i'-antlirachinonazine batter (iop%) (see S c 1i u 1 t z, color tables, 5th edition, p. 287 no. 837) are with thorough stirring with a concentrated aqueous solution of 0.5 parts Potassium permanganate added. The paste can also be used again after standing for a long time Stir gently while the paste not mixed with permanganate becomes a tough mass has deposited.

Beispiel 3. Example 3.

5oo Teile 5 - 5'-Dibromindigo (40prozentig) (Schultz, Farbstofftabellen, 5. Aufl., S. 300 Nr. 88o) werden unter gutem Rühren mit einer konzentrierten wäßrigen Lösung von i Teil Kaliumpermanganat versetzt. Die Wirkung ist die gleiche wie die in den vorhergehenden Beispielen beschriebene.A concentrated aqueous solution of 1 part of potassium permanganate is added to 500 parts of 5-5'-dibromoindigo (40 percent) (Schultz, Dye Tables, 5th Edition, p. 300 No. 88o) with thorough stirring. The effect is the same as that described in the previous examples.

Bei anderen Farbstoffpasten und Permanganaten ist das zweckmäßigste Mengenverhältnis jeweils von Fall zu Fall verschieden und leicht zu ermitteln.With other dye pastes and permanganates, the most appropriate is Quantity ratio varies from case to case and is easy to determine.

Claims (1)

PATENTANSPRUCH Verfahren zur Verhinderung des Zusammenbackens von Küpenfarbstoffpasten, dadurch gekennzeichnet, daß man diesen Pasten Permanganate zusetzt. PATENT CLAIM A process for preventing caking of vat dye pastes, characterized in that permanganates are added to these pastes.
DEB115736D 1924-09-18 1924-09-18 Method for preventing caking of Kuepen dye pastes Expired DE433413C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB115736D DE433413C (en) 1924-09-18 1924-09-18 Method for preventing caking of Kuepen dye pastes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB115736D DE433413C (en) 1924-09-18 1924-09-18 Method for preventing caking of Kuepen dye pastes

Publications (1)

Publication Number Publication Date
DE433413C true DE433413C (en) 1926-08-28

Family

ID=6994115

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB115736D Expired DE433413C (en) 1924-09-18 1924-09-18 Method for preventing caking of Kuepen dye pastes

Country Status (1)

Country Link
DE (1) DE433413C (en)

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