PL895B3 - Method of obtaining nitrosamine dyes against indigo background in multi-color printing. - Google Patents

Method of obtaining nitrosamine dyes against indigo background in multi-color printing. Download PDF

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Publication number
PL895B3
PL895B3 PL895A PL89520A PL895B3 PL 895 B3 PL895 B3 PL 895B3 PL 895 A PL895 A PL 895A PL 89520 A PL89520 A PL 89520A PL 895 B3 PL895 B3 PL 895B3
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PL
Poland
Prior art keywords
nitrosamine
indigo
dyes
background
obtaining
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Application number
PL895A
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Polish (pl)
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Publication date
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Publication of PL895B3 publication Critical patent/PL895B3/en

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Najdluzszy czas trwania patentu do dn. 27 sierpnia 1939 r.Znany jest sposób wytwarzania barwi¬ ków azowych z mieszanin nitrozoaminów i naftoli w druku wielobarwnym, przy- czem potrzebny jest proces zaparzania.Sposób ten polega na tern, ze stosuje sie do drukowania takie barwiki nitrozoami- nowe, do których dodaje sie obojetne chromiany lub inne sole metaliczne, two¬ rzace z barwikami azowemi laki odporne na zaparzanie.Znaleziono dalej,ze barwiki nitrozoami- nowe dla druku, o ile zawieraja chromia¬ ny, moga byc uzyte równiez do wywabów kolorowych na indygo i ze udaje sie z ich pomoca osiagnac ladne i trwale wywaby, o ile te barwiki nitrozoaminowe po nadru¬ kowaniu poddac procesowi zaparzania.W ten sposób stalo sie mozliwem stosowa¬ nie barwików nitrozoaminowych do wielo¬ barwnych wywabów na indygo, poniewaz np. obok bieli i czerwieni nitrozoamino- wej moga byc stosowane i zólte lub inne barwiki pigmentowe z albumina i chro¬ mianem lub inne barwiki, wymagajacg zaparzania.Znany jest równiez sposób postepowa¬ nia w celu drukowania barwikami nitro- zoaminowemi z dodatkiem chromianów na wyrobach bialych, aby te barwiki, po wywolaniu ich przez kwas octowy, re¬ zerwowac w kadzi indygowej lub nastep¬ nie wywabiac. Od tych sposobów róznisie wymieniony tutaj zasadniczo tern, ze barwiki nitrozoaminowe sa nadrukowy- wane na tkanine zabarwiona indygiem, poczem tworzy sie lak chromowy przez proces zaparzania, ,L.aby dopiero potem wywabiac w znanych kapielach z kwasu szczawiowego i siarkowego lub z kwasu szczawiowego i solnego.Jest to korzystne poniewaz z jednej strony udaje sie jednoczesne stosowanie i innych barwików, wymagajacych zapa¬ rzania, z drugiej zas strony jest ten- spo¬ sób prostszy i tanszy, gdyz moga byc sto¬ sowane wyroby juz przedtem zabarwione.Równiez i Mullerus (patrz. Lehnes Far- berzeitung 1893/94 str. 197) proponowal juz barwik nitrozoaminowo - chromowy do wywabów na indygo, lecz bez procesu zaparzania, przez co jednak nie bylo moz¬ liwe otrzymywanie w praktyce ladnych i do uzytku nadajacych sie wywabów.Przytoczone wyzej metody posiadaja te wade, ze laczenie musi sje odbywac w mocno kwasnej kapieli przy niesprzyjaja¬ cych warunkach.Ta wada usunieta jest w przytoczonym tu sposobie przez to, ze skutkiem otrzyma¬ nego w procesie zaparzania laku chromo¬ wego, barwik zupelnie jest zabezpieczo¬ ny od szkodliwego dzialania kwasnej ka¬ pieli.Przyklady: Drukuje sie na wyrobie, zabarwionym blekitem indygowym: a) Barwiki nitrozoaminowe. 1) 20 g p-naftolu, 20 cm3 lugu sodowego 34° Be, 100 cm3 wody, 500 g zageszczenia, 120 g nitrozoaminy p-nitro- o-anizydyny? zawieraja¬ cej 17fo zasady, 150 g obojetnego chromianu po¬ tasowego, 90 cm3 wody lkg. c 2) 22 g 2.3-anilidu kwasu oksynaftoesowego, 20 cm3 lugu sodowego 34° Be, 208 cm3 wody, 500 g zageszczenia, 100 *g nitrozoaminy m-nitro-p- toluidyny, zawierajacej 25# zasady, 150 g obojetnego chromianu potasowego 1 kg. b) Barwiki wtórujace. 400 g zólci chromowej w ciescie, 225 g zageszczenia tragan- towego 1 : 20., 120 g dwuchromianu sodu, 20 cm3 amonjaku, 35 cm3 wody, 200 g roztworu bialka jajecz¬ nego 1 : 1 lkg.Po wysuszeniu parzy sie przez 3 do 5 minut w aparacie Mather i Platta i na¬ stepnie wywabia przez 10 sekund w go¬ racej kapieli zawierajacej 50 g kwasu szczawiowego i 200 cm3 kwasu solnego 20° Be w litrze. Nastepnie dobrze sie plócze. PL PLThe longest term of the patent until On August 27, 1939, there is a known method of producing azo dyes from mixtures of nitrosamines and naphthols in multi-color printing, but an infusion process is required. This method consists in using such nitrosamine dyes to which it is added Neutral chromates or other metallic salts with azo dyes form steaming-resistant lacquers. It was further found that nitrosamines for printing, if they contain chromates, can also be used for indigo colored lures and are successful in With their help, it would be possible to achieve a nice and durable elimination by subjecting these nitrosamine dyes to the infusion process after printing. In this way it became possible to use nitrosamine dyes for multi-colored indigo washouts, because, for example, next to nitrosamine white and red yellow or other pigment dyes with albumin and chromium or other dyes requiring infusion can be used. The procedure for printing is also known. They are applied with nitrosamine dyes with the addition of chromates on white products, so that these dyes, after being induced by acetic acid, can be stored in an indigo vat or then lured. These methods differ essentially in the fact that the nitrosamine dyes are printed on indigo-stained fabrics, and then the chromium lake is formed by the infusion process, only then to be decanted in the known baths of oxalic and sulfuric acid or oxalic acid and It is advantageous because, on the one hand, it is possible to use simultaneously other dyes that require brewing, and on the other hand, it is simpler and cheaper, as it is possible to use products already colored. (see Lehnes Farberzeitung 1893/94, p. 197) already proposed a nitrosamine-chromium dye for indigo lunges, but without the infusion process, which made it impossible to obtain in practice nice and useful lunges. The above methods have the disadvantage that the joining must take place in a strongly acid bath under unfavorable conditions. This disadvantage is removed in the method presented here. Therefore, due to the chromium lacquer obtained in the infusion process, the dye is completely protected against the harmful effects of acid bath. Examples: Printed on a product colored with indigo blue: a) Nitrosamine dyes. 1) 20 g of p-naphthol, 20 cm3 of sodium hydroxide 34 ° Be, 100 cm3 of water, 500 g of concentration, 120 g of p-nitrosamine p-nitro-anisidine? containing 17% of base, 150 g of neutral potassium chromate, 90 cm 3 of water, 1 kg. c 2) 22 g of oxynaphthoic acid 2.3-anilide, 20 cm3 of sodium salt 34 ° Be, 208 cm3 of water, 500 g of concentration, 100 * g of m-nitro-p-toluidine nitrosamine, containing 25 # of base, 150 g of inert potassium chromate 1 kg. b) Supplementary colors. 400 g of chrome yellow in the dough, 225 g of a 1: 20 concentration of tragamate, 120 g of sodium dichromate, 20 cm3 of ammonium, 35 cm3 of water, 200 g of egg white solution 1: 1 l kg. 5 minutes in the Mather and Platt apparatus, and then delicates for 10 seconds in a hot bath containing 50 g of oxalic acid and 200 ml of hydrochloric acid at 20 ° B per liter. Then it sleeps well. PL PL

Claims (1)

1. Zastrzezenie patentowe. Sposób otrzymywania barwików azo- wych, z mieszanin nitrozoaminów i naftoli,, w druku wielobarwnym, przy stoso¬ waniu procesu zaparzania, tern znamien¬ ny, ze stosowane nitrozoaminowe barwiki dla druku, zawierajace chromiany, wywo¬ lywane sa na tle indygowem. Chemische Fabrik Griesheim-Elektron. Zastepca: Cz. Raczynski, rzecznik patentowy. ZAtt.MAF.MKUAailCH W W«57A*IE PL PL1. Patent claim. The method of obtaining azo dyes from mixtures of nitrosamines and naphthols in multi-color printing, using the infusion process, is characterized by the fact that the nitrosamine printing dyes used, containing chromates, are developed on the indigo background. Chemische Fabrik Griesheim-Elektron. Deputy: Vol. Raczynski, patent attorney. ZAtt.MAF.MKUAailCH W W «57A * IE PL PL
PL895A 1920-07-03 Method of obtaining nitrosamine dyes against indigo background in multi-color printing. PL895B3 (en)

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PL895B3 true PL895B3 (en) 1924-11-29

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