DE560546C - Process for the production of resistant prints on metal, wood, paper, textiles, leather, synthetic resins or other plastics of an organic nature, stones or artificial stones - Google Patents

Description

Process for the production of resistant prints on metal, Wood, paper, textiles, leather, synthetic resins or other organic plastics Nature, stones or artificial stones It has been found earlier that one can use signs, Images, inscriptions, decorations and d-1. using varnishes made from cellulose esters or ethers by means of the usual oil printing or gravure printing machines or others Printing machines can print on substrates made of metal, wood, plastics, etc. The advantages of printing with cellulose-derived varnishes are based on the abbreviation of Drying time and the greater resistance of the prints to the usual ones Detergents such as soap solutions and organic solvents. That mentioned However, the method has the disadvantage that in some documents as a result of their uneven Texture on the surface of the print job in terms of gloss and appearance uneven will. So is z. B. often changes and influences the absorbency of the subsurface the imprint like that. that a surface inconsistent in gloss and color, etc. arises.

It has now been found that these: Avoid disadvantages and on any T-Tiiterlagen, z. B. metal, wood, paper, textiles, leather, resin compounds, Plastics, stone, artificial stone, etc., very resistant, quick-drying Can produce even prints if you look at the surface of the documents to be printed first with a coating of oil paints, oil varnishes, resin or synthetic resin varnishes or these containing mixtures provided as a printing base and then on this printing base a varnish made from cellulose esters or ethers using any printing process printed with the exclusion of the use of stencils. By using a Such a printing base is one in all cases for the production of the print suitable surface created, and it is possible at the same time to change the character cover or change the material to be printed if desired.

The composition of the printing base is expediently chosen so that During the printing process, there is a sufficient bond between the printing ground and the applied one Ink enters, so that a pulling up of the latter is avoided. Depending on the nature of the objects to be printed one is more spatula or Use more varnish-like materials to create the printing ground. When a a single layer is not sufficient for the formation of a level printing substrate, you can build this up through repeated assignments. To create the printing ground are suitable all known 'methods; he can z. B. by spreading, Spraying, rolling or printing can be generated.

The printing of varnishes made from cellulose esters or ethers on the printing base can be done using any printing process. You can z. B. oil printing or gravure printing machines or work by hand or in offset printing.

The prints produced in the manner described can by deliberation a suitable transparent varnish still be specially protected.

It has already been proposed to use metal foils, papers and the like for the subsequent printing with oil paints or other common printing inks prepare by priming. With lacquers made from cellulose esters or ethers one has not yet printed on the so primed documents. llan already has Sheets of fabric or paper with printing inks; to which nitrocellulose solutions are added were, printed, "but in this case the documents were not primed Mistake. The lacquers made of cellulose esters or ethers adhere to and for themselves very good on all relevant documents, so that there is no reason at all to provide the documents with a better adhesive layer. Still will in the case of the present method, first coat the base with an oil paint primer, Oil varnish, resin or synthetic resin varnish and then coated with a cellulose derivative varnish printed because in this way it is possible to achieve printing layers that have a have extremely high resistance to all kinds of influences.

Example i A coating with a white nitrocellulose spray lacquer is applied to black plate from 100 parts dry nitrocellulose, 3o parts mastic resin, 100 parts zinc white, 65 parts of dibutyl phthalate, 100 parts of alcohol, 300 parts of toluene, z50 parts Butyl acetate and 45 parts of butanol are produced. After the spray paint has dried a nitrocellulose varnish from aoo parts by means of an ordinary oil printing machine dry nitrocellulose, 100 parts dibutyl phthalate, 300 parts diethyl phthalate, 70 parts of lamp black and aoo parts of ethyl glycolate are printed. Instead of the printing base described can also be colorless or any colored oil varnish, Oil paints, etc. find use. The printed varnish can also be mixed with earth colors, organic pigments, aluminum or bronze powder and the like by treatment the hopper mill, the three-roller mill, etc. be colored. There can also be others similarly composed nitrocellulose lacquers are used in which a pigment dye is contained in such a fine distribution that it is even when the Color varnish solution practically does not set to the ground.

The printing described above can be done with a colorless varnish, e.g. B. a nitrocellulose lacquer made of 100 parts of dry nitrocellulose, 70 parts of dibutyl phthalate, 250 parts of butyl acetate, 45 parts of butanol, 100 parts of alcohol and 40 parts of toluene, are sprayed over. This protective lacquer coating can be sanded and polished to achieve a high gloss.

Example z A sheet of tinplate is placed on the coating machine with a white. Oil primer coated. After drying this primer is applied this, also on the painting machine, a white nitrocellulose paint, which through Mixing 55 parts of liquid nitrocellulose (35% alcohol) with 30 parts Rosin, 100 parts zinc white, 70 parts phthalic acid dibutyl ester, 145 parts Butanol, 300 parts of glycol monoethyl ether and zoo parts of glycol monoethyl ether acetate was made, applied. Gravure printing is used to apply to this substrate the desired pressure using nitrocellulose lacquers.

Claims (1)

PATE NT ANSPRU Cli method of manufacturing resistant Printing on metal, wood, paper, textiles, leather, synthetic resins or other plastics of organic nature, stones or artificial stones, characterized in that one has the first with coatings of oil paints, oil varnishes, resin or synthetic resin sheets or these containing mixtures provided as a printing base and then on this printing base Varnishes made from cellulose esters or ethers using any printing process under Exclusion of the use of stencils imprinted.