US1879417A - Process for printing inscriptions and drawings intended to be placed upon wood, fabrics, and other absorbent materials - Google Patents

Description

sept. 27, 1932. G MUZZlOL] 1,879,417

PROCESS FOR PRINTING INSCRITTIONS AND DRAWINGS INTENDED TO BE PLACED UPON WOOD, FABRICS, AND OTHER ABSORBENT MATERIALS Filed April 12, 1929 Patented Sept. 27, 1932 UNITED STATES PATENT. OFFICE ammo :tuzzronr, or arm, nan

PROCESS FOR PRINTING INSCBIITIONS AND DRAWINGS INTENDED TO DE PLACED UPON WOOD, FABRICS, AND OTHEB ABBOBBENT MATERIALS Application filed April 12, 1989, Serial lto. 854,761, and in Italy Kay 22, 1928.

The present invention has for its obiect a process. for printing, by means of ithographic or typographic machines, mscri tions or drawings in one or several indehb e colors ca able of being transferred upon wood, fabric or any other absorbent material, thesaid transfer being effected by a simple superposition, of the rlntlng to be transferred upon the surface intendedto reccive it in a hot and moist condition. The present process is characterized substantially by: p

1. A preparation of the paper intended to prevent this latter absorbing the mks or colors which are applied thereto and to permit the transfer therefrom on to surfaces of wood, fabric or otherv materials:

2. A preparation of the printing mks or colors to render the employment of them posm sihle in ordinary lit graphic machines and to retain them in such a condition that they can be transferred at the desired time, by pressure and heating and moistening, upon surfaces of wood,'fabas ric and the like.

3. A treatment of the sheets whlch have just been printed to enable them to be immediately stacked and to render them suitable to retain unaltered their property of m transferring even after long periods of tlme,

for example after many years.

The preparation of the paper referred to in paragraph 1 consists substantially in coating it with a special mucilage which 1s obsodium and 400 grammes. of very pure French colophony in powder and the whole is boiled and is continually mixed, until the W colophony is completely liquefied. Finally ographic and typo-.

- tained, according to the invention, in the fol-- dered rice starch and the whole is allowed the whole is poured into the composition indicated in paragraph (a).

(c) There is placed in a litre of water about 200 grammes of albumen of eggs a few hours before effecting the other operations, so that the albumen may be entirely liquefied by the time when it should be used. This solution is poured into the composition indicated in paragraph (a immediately after having poured therein t e preparation indicated in paragraph (b).

(d At the same time as thepreparation (a) t ere is poured into the composition indicated in paragraph (a) about 200 grammes of flowers of sulphur and 400 grammes of gum arabic and finally 2 kilos of pale glycerine at 28 Beaum.

The mucilage thus obtained is sieved, conveniently three times,.in order to obtain from it a perfect liquid. Finally the printing paper is coated with it, either by hand or by means of a machine.

Packing paper will be employed with advantage, having a weight of about 60 grammes per sheet measuring 7 5 c. m. b 100 c. m., having a base of cellulose and perf ectly smooth and this smooth surface is coated.

The printing inks or colors referred to in paragraph 2, are prepared inthe following manner:

There is placed in a container about 5 litres of French spirit of turpentine, one kilo and a half about of very pure beeswax, 250 grammes of stearine (or preferably 'paraf fine) and 2 kilos of powdered French colophony the whole is heated in a water bath until all the substances are completely dissolved. Finally the composition is passed through a sieve. I

' The preparation thus obtained ought to be mixed with printing inks or colors in the proportion of about 300 grammes for each kilo of ink or colors; the inks ought to be of the best quality and the printing should befat.

Referring toparagraph 3, when the inscriptions and drawings have been printed, the sheets are immediately dusted with very pure French colophony reduced to a very fine powder; this operation may be effected either by hand or mechanically. ;J

The invention therefore comprises the following three preparatory processes:

The paper to e printed is coated with a special mucilage to prevent the penetration of the color or of the ink and to render the transfer possible upon surfaces of wood or fabric, there is vadded a chemical composition to the inks or color in order to retain them active and to give to them the properties necessary for the transfer and finally the sheets which have just been printed are dusted with powdered colophony, to enable them to be stacked immediately, notwithstanding the fat printing, in order to maintain the colors fresh and to ermit the transfer of them even after severa years.

The transfer is based upon the absorption of the surfaces to be covered, which ought therefore to possess suitable absorbent properties for example to be constituted of wood or fabric. The transfer is made by placing the sheet of paper printed upon the surface in question, by covering the sheet with a moist cloth or moistening the sheet, and finally by exerting upon the same pressure accompanied by heating.

In the case of fine fabric, such as silk, white cloth and the like, the pressure of a smoothing iron duringthree or four seconds will be sufficient, whilst for all other materials such as wood, packing cloth and the like, it will be. necessary to employ mechanical pressure which should however always have a duration of three to four seconds.

The accompanying drawing shows, without limiting the invention, a transfer according to this application applied on a wooden board on which it is desired to transfer the inscription or drawing, the view being a conventional, exaggerated cross-sectional show- Iteferring to the figure, 1 is a supporting paper sheet, 2 the layer of mucilage, 3 is the impression carried by the sheet 1, and 4 is the wooden board on which it is desired to transfer the impression 3. As shown on the drawing, the sheet is placed on the board with the impression 3 turned toward the board surface, and a pressure is then exerted on the sheet 1 by means of rolls, pressure plate or other suitable means. In order to facilitate transferring the impression, the transfer is first moistened and the pressure roll or plate.

is heated by known means.

What I claim is:

1. The method of printing on absorbent materials which comprises coating a sheet with mucilage composed of dextrine of white maize, rice starch carbonate of sodium, colophony, albumen, flowers of sulphur, gum arabic and pale glycerine, printin a design or inscription onto the coated s eet with printers ink or colors mixed with spirit of turpentine,beeswax, parafline and powdered colophony md offsetting the design or inscription from the sheet onto wood, fabric or 12th? absorbent materials by pressure and 2. In the method of printing, on absorbent materials as claimed in claim 1 the step which comprises coating a sheet with mucilage consisting of about 12 kilos of dextrine of white maize, 2 kilos of powdered rice starch boiled in 18 kilos of water for about 5 minutes, adding to the above 400 grammes of carbonate of sodium and 400 grammes ofpure powdered French colophony placed in 2 liters of cold water stirred and boiled until the colophony is completely liquefied, adding to the above mixture simultaneously a solution containing 200 grammes of egg albumen completely liquefied in a litre of water and a mixture of about 200 grammes of flowers of sulphur, 400 grammes of gum arabic, 2 kilos of pale glycerine distilled at 28 Beaum and straining the above.

3. In the method of printing on absorbent material as claimed in claim 1, in which the mixture added to ordinary printers ink or colors is composed of about 5 liters of spirit of turpentine, one and one-half kilos of beeswax, 250 grammes of stearine and about 2 kilogrammes of powdered French colophony heated in a water bath until all the substances are completely dissolved.

In testimony that I claim the foregoing as my invention, I have si ned my name.

' GAET NO MUZZIOLI.

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