CH230193A - Process for the preparation of an azo dye. - Google Patents
Process for the preparation of an azo dye.Info
- Publication number
- CH230193A CH230193A CH230193DA CH230193A CH 230193 A CH230193 A CH 230193A CH 230193D A CH230193D A CH 230193DA CH 230193 A CH230193 A CH 230193A
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- azo dye
- preparation
- man
- dye
- Prior art date
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
- C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
- C09B1/16—Amino-anthraquinones
- C09B1/20—Preparation from starting materials already containing the anthracene nucleus
- C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
- C09B1/32—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups
- C09B1/34—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated
-
- 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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
- C09B29/08—Amino benzenes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
verfahren zur Herstellung eines Azofarbstoffes.
EMI0001.0003
Es <SEP> wurde <SEP> gefunden, <SEP> dass <SEP> man <SEP> einen
<tb> neuen, <SEP> wertvollen <SEP> Azofarbstoff <SEP> erhält, <SEP> wenn
<tb> man <SEP> diazotiertes <SEP> 4-Nitro-2-ch1or-l-am@ino henzol <SEP> mit <SEP> ss-N- <SEP> Äthyl-N <SEP> -3-methylphenyl aminopropionsäure-ss'-oxy-ä.thylest.er <SEP> entspre chend <SEP> der <SEP> Formel:
EMI0001.0004
EMI0001.0005
Der <SEP> neue <SEP> Azofarbstoff <SEP> eignet <SEP> sich <SEP> beson ders, <SEP> zum <SEP> Färben <SEP> von <SEP> Celluloseestern <SEP> und
<tb> -äthe,rn, <SEP> wobei <SEP> man <SEP> klare <SEP> rubinrote <SEP> Töne <SEP> von
<tb> ausgezeichneter <SEP> Lichtechtheit <SEP> erhält.
<SEP> Der
<tb> Farbsrtoff <SEP> lässt <SEP> sich <SEP> mit <SEP> Hilfe <SEP> geeigneter
<tb> Dispiergiermitted <SEP> so <SEP> fein <SEP> in <SEP> ZVasser <SEP> verteilen,
<tb> dass <SEP> man <SEP> kolloiidarle <SEP> Lösungen <SEP> erhält, <SEP> die <SEP> sich
<tb> nicht <SEP> von <SEP> echten <SEP> Lösungen <SEP> unterscheiden.
<tb> Solehe <SEP> Lösungen <SEP> besitzen <SEP> ein <SEP> vorzügliches
<tb> Durehfärbevermö,gen <SEP> für <SEP> dichtgeschla.g@enes Acetatseidengeweibe und stark gezwirntes Acetatseidengarn.
<I>Beispiel:</I> Die Diazoverbindung aus 172,5 Teilen l.-Amino-2-chilor-4-nitrobenzol wird bei 0 bis 5 C langsam in die mit Wasser auf etwa 5000 Teile verdünnte Lösung von 264 Teilen ss-N-Äthyl-N-3-methyl-phenylaminopropioon- säure-ss'-oxyäthylester in 110 Teilen 35%iger Salzsäure eingegossen.
Die guppilung ist nach einigen Stunden beendet. Man versetzt mit so viel Natriumacetat oder verdünnter Natronlauge, dass das pH der Lösung 5 be trägt, saugt ab, wäscht gut aus:, trocknet bei 50 C und vermahlt mit der gleichen Menge .eines Dispengiermifelss.
Der Farbstoff bildet ein schwarzes Pulver und liefert aus Glaubersalz oder Chlor- ammonium enthaltenden wässrigen Bädern kräftigre rubinrote Färbungen auf Aoetat- seide, die :gut durchgefärbt und lichtecht sind. '
process for the production of an azo dye.
EMI0001.0003
<SEP> was found <SEP>, <SEP> that <SEP> man <SEP> one
<tb> receives new, <SEP> valuable <SEP> azo dye <SEP>, <SEP> if
<tb> man <SEP> diazotized <SEP> 4-nitro-2-chloro-l-am @ ino henzol <SEP> with <SEP> ss-N- <SEP> ethyl-N <SEP> -3-methylphenyl aminopropionic acid -ss'-oxy-ä.thylest.er <SEP> according to <SEP> the <SEP> formula:
EMI0001.0004
EMI0001.0005
The <SEP> new <SEP> azo dye <SEP> is <SEP> particularly suitable for <SEP>, <SEP> for <SEP> coloring <SEP> of <SEP> cellulose esters <SEP> and
<tb> -äthe, rn, <SEP> where <SEP> man <SEP> clear <SEP> ruby red <SEP> tones <SEP> of
<tb> excellent <SEP> light fastness <SEP> obtained.
<SEP> The
<tb> Color <SEP> can be <SEP> more suitable <SEP> with <SEP> help <SEP>
<tb> Dispensing medium <SEP> so <SEP> fine <SEP> in <SEP> ZVasser <SEP> distribute,
<tb> that <SEP> one receives <SEP> colloidal <SEP> solutions <SEP>, <SEP> the <SEP> itself
<tb> does not distinguish <SEP> from <SEP> real <SEP> solutions <SEP>.
<tb> Solehe <SEP> solutions <SEP> have <SEP> an <SEP> excellent
<tb> Durehfärbebarkeit, gen <SEP> for <SEP> Dichtgeschla.g@enes Acetatseidengeweibe and strongly twisted acetate silk yarn.
<I> Example: </I> The diazo compound from 172.5 parts of l.-amino-2-chloro-4-nitrobenzene is slowly added to the solution of 264 parts diluted with water to about 5000 parts at 0 to 5 C N-ethyl-N-3-methyl-phenylaminopropioonic acid-ss'-oxyethyl ester poured into 110 parts of 35% hydrochloric acid.
The formation is over after a few hours. Sodium acetate or dilute sodium hydroxide solution is added so that the pH of the solution is 5, suctioned off, washed well, dried at 50 ° C. and ground with the same amount of a dispersant.
The dyestuff forms a black powder and, from aqueous baths containing Glauber's salt or chlorammonium, produces strong ruby-red colorations on acetate silk, which: are well dyed and lightfast. '
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH212647T | 1940-11-25 | ||
CH230193T | 1940-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH230193A true CH230193A (en) | 1943-12-15 |
Family
ID=25725295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH230193D CH230193A (en) | 1940-11-25 | 1940-11-25 | Process for the preparation of an azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH230193A (en) |
-
1940
- 1940-11-25 CH CH230193D patent/CH230193A/en unknown
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