DE917139C - Pigment dyes - Google Patents

Description

Pigment dyes It has been found that the reaction products of compounds which at least once form the group contain, in which R is hydrogen or any organic radical, preferably an alkyl group, in particular of perinaphthindanedione- (i, 3), with aromatic aldehydes, are valuable pigment dyes, which are excellent for pigmenting paints, printing inks, paper, rubber or Plastics such as polyvinyl chloride, polystyrene or polyacrylic ester, or also for spin dyeing viscose, acetate rayon, polyamides or Pdlyacrylonitril are suitable. The extensive colors that are retained in this way are very lightfast, sublimation-fast, oily and heat-resistant.

The parts mentioned in the following examples are parts by weight.

Example i q. Parts of the reaction of perinaphthindandione- (i, 3) The yellow reaction product obtained with Benzaldehyde is mixed with 100 parts of barite finely ground. 40 to 5o parts of the dry paint thus obtained are with 4o to 50 parts of linseed oil varnish rubbed, and the oil color obtained is optionally still diluted with turpentine oil to the desired spreadability. The one with this oil paint made yellow paints are characterized by good Lightfastness, sublimation fastness, overspray fastness and heat resistance.

Example 2 20 parts of alumina raw material are mixed with 20 parts of the reaction product from Perinaphthindandione- (i, 3) and p-nitrobenzal, dehyd (melting point 297 ° with decomposition) intimately mixed. The whole thing is then on the three-roll mill with 60 parts of pressure varnish rubbed. A very lightfast printing ink is obtained in this way.

Example 3 100 parts post-chlorinated polyvinyl chloride, 50 parts dioctyl phthalate and so parts of chalk are intimately mixed on the kala. Then you give 0.4 to o; 8 parts of the reaction product of perinaphthindanedione- (i, 3) with benzaldehyde or nitrobenzaldehyde and toss the mixture further until it is evenly colored is achieved. A yellow-colored synthetic material of high lightfastness is obtained in this way.

Example q.

80 parts of heavy spar are mixed with a solution of 20 parts of aluminum sulfate in zoo parts of water. 100 parts are then stirred into this mixture 100% aqueous solution of sodium carbonate, 3o parts of a dyestuff paste, which about i2% of the reaction product of perinaphthindanediOn- (i, 3) with benzaldehyde and finally a solution of 25 parts of barium chloride in 250 parts of water a. The precipitate which has separated out is filtered off with suction and the residue is washed with it Water out. Zoo parts of this preflight are then sent with So parts of a 2oo / oigen Animal glue solution thoroughly mixed and the mass homogenized well in the turbo mixer. A yellow wallpaper printing ink of very good lightfastness is obtained in this way.

Example In a mixture of 27 parts of nitrocellulose, which is about 35 % Butanol contains 7 parts of P, ht'halsäuredibutyleste @ r, 5 parts of one from cyclohexanone synthetic resin obtained by treating with sodium hydroxide, 19.5 parts of ethyl acetate, 15.5 parts of butyl acetate, 5 parts of ethyl glycol and 2r parts of a mixture Toluene and xylene (i: i) are 5 to 7 parts of finely divided, yellow condensation product from Perinaphthindandione- (i, 3) rolled in with p-nitrobenzaldehyde and homogenized. The lacquer produced in this way gives good lightfast yellow lacquers.

Claims (1)

PATENT CLAIM: The use of the reaction products of compounds that at least once the grouping contain, in which R is hydrogen or any organic radical, preferably an alkyl group; with aromatic aldehydes as pigment dyes.