DE1128446B - Printing ink for making rubber prints - Google Patents

Description

The subject of the patent 1 088 518 is a process for the production of rubber prints with basic Dyes, which is characterized in that an alcoholic or aqueous alcoholic solution of basic dyes is used for printing, those from oxydiarylsulfones and aromatic oxycarboxylic acids or aryloxy fatty acids by means of formaldehyde contains manufactured condensation products in the form of the free acids.

The subject of the present invention is a further development of this method; she consists in that the condensation products are those of oxydiarylsulfones and aromatic oxycarboxylic acids or aryloxy fatty acids using formaldehyde in the form of the free acids used, which are prepared with the addition of hydrocarbon compounds, which at least one Contain phenyl radical and at least one hydroxyl group bonded to a phenyl radical.

Suitable condensation products are in particular those derived from 4,4'-dioxydiphenylsulfone and Oxybenzoic acids using formaldehyde with the addition of o-oxydiphenyl, p-oxydiphenyl, o-oxydiphenylmethane and / or o-dioxybenzene are produced.

The amounts of condensation products required to carry out the present invention depend on the nature of the basic dyes away; they can easily be determined from case to case by means of preliminary tests.

The process according to the invention permits the use of relatively small amounts of condensation products to produce rubber prints on paper, metal foils or plastic foils, for example, the animals are fixed in a protruding manner. In addition, neither occur when performing the procedure odor nuisance even when using the printed materials. These advantages are at Use of the previously known fixatives is not given to the same extent.

The prints obtained by the process of the present invention are remarkably even deeper in color than the prints produced by the process of the main patent. In addition, the condensation products to be used according to the invention have a greater solubility in alcohol compared to the condensation products of the main patent; As a result, those dyes or dye stock solutions can now also be used for the production of rubber prints which cannot be used with full success in the process of the main patent because the condensation printing ink used there for production
of rubber prints

Addendum to patent 1,088,518

Applicant:

Paint factories Bayer Aktiengesellschaft,
Leverkusen-Bayerwerk

Dr. Rudolf Fingado and Dr. Helmut Meier,

Leverkusen,
have been named as inventors

products are not soluble in the amount required for complete fixation of the dyes is.

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

example 1

15 parts of a 4,4'-dioxydiphenyl sulfone from 625 parts, 587 parts of salicylic acid, 127 parts of o-oxydiphenyl with 820 parts of 30% formaldehyde Addition of 295 parts of concentrated hydrochloric acid and 750 parts of water produced condensation product are dissolved in a mixture of 70 parts of ethyl alcohol and 5 parts of ethyl glycol and then with 10 parts of a basic dye (e.g. dye No. 752, No. 760, No. 822 or No. 930 from Schultz, Dye Tables, 7th Edition, Vol, I). With the clear dye solution is then Paper printed on the rubber printing machine. The prints obtained are completely odorless and waterproof fixed and real to paraffin and fats.

Instead of the 15 parts of the condensation product listed above, the same can be used Success also use one of the following condensation products in the specified amount.

a) 15 parts of the _{condensation product prepared from 250 parts of 4 5} 4'-dioxydiphenyl sulfone, 587 parts of salicylic acid, 170 parts of o-oxydiphenyl with 330 parts of 30% formaldehyde with the addition of 115 parts of concentrated hydrochloric acid and 300 parts of water;

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b) 15 parts of the 250 parts of 4,4'-dioxydiphenyl sulfone, 235 parts of salicylic acid, 51 parts of o-oxydiphenyl with 250 parts of 30% formaldehyde with the addition of 115 parts of concentrated hydrochloric acid and 600 parts of water Condensation product;

c) 15 parts of 250 parts of 4,4'-dioxydiphenyl sulfone, 235 parts of salicylic acid, 52 parts of p-oxydiphenyl with 330 parts of 30% formaldehyde with the addition of 100 parts of concentrated hydrochloric acid and 300 parts of water Condensation product;

d) 15 parts of 250 parts of 4,4'-dioxydiphenylsulfone, 230 parts of salicylic acid, 60 parts of 4-oxydiphenylmethane with 310 parts of 30% formaldehyde with the addition of 90 parts of concentrated hydrochloric acid and 300 parts of water Condensation product;

e) 15 parts of the 250 parts of 4,4'-dioxydiphenyl sulfone, 235 parts of salicylic acid, 35 parts of o-dioxybenzene with 300 parts of 30% formaldehyde prepared with the addition of 100 parts of concentrated hydrochloric acid and 700 parts of water Condensation product;

f) 10 parts of one of the condensation products listed above in a mixture with 10 parts of an alcohol-soluble resin, e.g. B. a cyclohexanone-formaldehyde resin.

Example 2

Parts of one of the condensation products listed in Example 1 are in a mixture from 50 parts of ethyl alcohol and 5 parts of ethyl glycol dissolved and mixed with 15 parts of the dye no. 930 from Schultz, loc. a. O., displaced. With the clear dye solution paper is printed on the rubber printing machine. The prints obtained correspond largely to the prints produced according to Example 1 in terms of their properties.

Example 3

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Parts of one of the condensation products listed in Example 1 are in 55 parts of ethyl alcohol dissolved and mixed with 10 parts of dye no. 864 and 5 parts of dye no. 752 Schultz, a. a. O., displaced. With the clear dye solution, paper is made on the rubber printing machine printed. The properties of the prints obtained correspond to those produced according to Example 1 To press.

Example 4

In a mixture of 58 parts of ethyl alcohol and 5 parts. Ethyl glycol will initially be 10 parts one of the condensation products listed in Example 1, 10 parts of an alcohol-soluble resin - e.g. B. a cyclohexanone-formaldehyde resin -, 5 parts of an alcohol-soluble, oil-modified alkyd resin and 2 parts of ethyl cellulose dissolved. 10 parts of one of the im Example 1 listed basic dyes added.

The clear solution prepared in this way is used to print aluminum foils on the rubber printing machine. The prints obtained are odorless, the dyes are well fixed and resistant to fats, Waxes and paraffins real. The adhesion and friction resistance of the prints on the film is also Well. Instead of aluminum foils, foils made of cellulose hydrate, polyethylene or the like can also be used. can be printed.

Claims (1)

PATENT CLAIM: Printing ink for the production of rubber prints according to patent 1 088 518 with an alcoholic or aqueous-alcoholic solution of basic dyes, the condensation products made from oxydiarylsulfones and aromatic oxycarboxylic acids or aryloxy fatty acids by means of formaldehyde in the form of free acids, characterized in that the printing ink contains condensation products of oxydiarylsulfones and aromatic oxycarboxylic acids or aryloxy fatty acids produced by means of formaldehyde in the form of the free acids, which are prepared with the addition of hydrocarbon compounds which contain at least one phenyl radical and at least one hydroxyl group bonded to a phenyl radical. © 209 577/175 4.62