PL8167B1 - The method of obtaining the yellow azo dye. - Google Patents

The method of obtaining the yellow azo dye. Download PDF

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Publication number
PL8167B1
PL8167B1 PL8167A PL816727A PL8167B1 PL 8167 B1 PL8167 B1 PL 8167B1 PL 8167 A PL8167 A PL 8167A PL 816727 A PL816727 A PL 816727A PL 8167 B1 PL8167 B1 PL 8167B1
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PL
Poland
Prior art keywords
azo dye
obtaining
nitro
yellow azo
yellow
Prior art date
Application number
PL8167A
Other languages
Polish (pl)
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Publication date
Application filed filed Critical
Publication of PL8167B1 publication Critical patent/PL8167B1/en

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Description

Wiadomo, ze bardzo znaczna czesc sto¬ sowanych dotychczas kio batrwienia jedwa¬ biu octanowego zóltych jednoazowych barwników daja na jedwabiu octanowym zabarwienia fototropowe.Obecnie wykryto, ze barwnik z dwua- zowanej p-nitroaniliny i /-nitro-2.4-dwua- minobenzenu barwi octan blonnika na piekne nie-fototropowe zóltozlote odcie¬ nie, równiez odporne.Wlasnosci tego nowego produktu sa tern bardziej nieoczekiwanie, ze np, barw¬ nik z m-nitroaniliny i 7-nitro-2.4-dwuami- nobenzemu daje na jedwabiu octanowym bardzo slabe zabarwienia,. Inne polacze¬ nia z nitro - m - feinylenodwuamina, jak np. anilina - nitro - m - fenylendwuamina, p-chloroaniliiia^nitro - m - fenylendwua¬ mina, o-toluidyna -? nitro - m - fenylen¬ dwuamina p - amino - metyloacetamilid -». nitro - m - fenylendwuamina i t, d daja na octanie blonnika wprawdzie piekne i moc¬ ne zabarwienia, to jednak wszystkie sa barwnikami fototropowemi.Przyklad 153 cz, wag. l-nitro-2.4- dwuaminobenzenu rozpuszcza sie w gora¬ cej wodzie i roztwór ten wylewa miesza¬ jac energicznie na lód. Do przygotowanej w ten sposób zawiesiny wlewa sie iw sposób znany zwiazek dwuaziowy, otrzymany ze 138cz. wag. p-nitroaniliny. Po kilkugodzinnem mieszaniu sprzeganie jest zakonczone.Barwnik po odsaczeniu i wysuszeniu two¬ rzy proszek zólty.Barwnik nadaje sie znakomicie do dru¬ kowania jedwabiu octanowego. PL PLIt is known that a very large proportion of the yellow monoazic dyes used so far give phototropic dyes on acetate silk. of the fiber for beautiful non-phototropic yellow-golden shades, also resistant. The properties of this new product are more surprisingly that, for example, the dye of m-nitroaniline and 7-nitro-2,4-diaminobenzene gives very weak colors on acetate silk ,. Other combinations with nitro-m-phenylenediamine, such as, for example, aniline-nitro-m-phenylenediamine, p-chloroaniline, nitro-m-phenylendvuamine, o-toluidine-m-phenylenediamine, nitro - m - phenylene diamine p - amino - methyl acetamilide - ». nitro - m - phenylenediamine and t, give on fiber acetate a beautiful and strong color, nevertheless they are all phototropic dyes. Example 153 parts by weight. The 1-nitro-2,4-diaminobenzene is dissolved in hot water and the solution is poured vigorously over ice. The diazo compound obtained from 138 parts is poured into the suspension prepared in this way. wt. p-nitroaniline. After stirring for a few hours, the bonding is complete. The dye is drained and dried to form a yellow powder. The dye is perfect for printing acetate silk. PL PL

Claims (1)

1. Zastrzezenie patentowe. Sposób otrzymywania barwnika azowe- go nadajacego sie szczególnie do barwie¬ nia jedwabiu octanowego, znamienny tern, ze dwuaziowana p-nitroaniline sprzega sie z 7-nitro-2.4-dwuaminobenzenem. I. G. Farbenindustrie Aktiengesellschaft. Zastepca: M. Skrzypkowski, rzecznik patentowy. Druk L. Boguslawskieqo. Warszawa. PL PL1. Patent claim. A process for the preparation of an azo dye which is particularly suitable for the dyeing of acetate silk, characterized by the fact that the diazinized p-nitroaniline is combined with 7-nitro-2.4-diaminobenzene. I. G. Farbenindustrie Aktiengesellschaft. Deputy: M. Skrzypkowski, patent attorney. Printed by L. Bogusławskieqo. Warsaw. PL PL
PL8167A 1927-04-25 The method of obtaining the yellow azo dye. PL8167B1 (en)

Publications (1)

Publication Number Publication Date
PL8167B1 true PL8167B1 (en) 1928-01-31

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