US241005A

US241005A - bacon

Info

Publication number: US241005A
Authority: US
Publication date: 1881-05-03
Anticipated expiration: 1898-05-03

Description

NETEE NATHAN HART AND ROBERT A. BACON, OF NEW YORK, N. Y.

DECORATING CELLULOID.

SPECIFICATION forming part of Letters Patent No. 241,005, dated May 3, 1881.

Application filed February 2, 1880.

To all whom it may concern Be it known that we, NATHAN HART and ROBERT A. BACON, said HART being a citizen of the United States and said BACON being a citizen of Canada, both residing at the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Printing or Marking Upon Compounds of Pyroxyline, such as celluloid and analogous substances; and we do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

Heretofore all attempts, so far as we know, to make permanent decorations upon surfaces made of compounds ofpyroxyline, such as celluloid and similar substances, have failed, the tints or colors being easily washed orrubbed off. Attempts have been made to overcome this difficulty by giving the article so colored a coating of varnish or colorless celluloid; but this, although it overcame the difficulty to some extent, did not entirely do so, as the varnish and color could be readily scraped or worn off. Besides this, it added considerably to the expense of manufacture. Celluloid had also been colored in the mass by the addition of various pi gments, so as to make one uniform color throughout; or, by partially mixing the pigments and celluloid, a cloudy or mottled appearance had been produced, which, although durable, was not capable of being used to produce regular designs.

The object of our invention is to enable figures or designs or letters, in tints or colors, to be permanently printed or marked upon surfaces composed wholly or in part of compounds of pyroxyline, such as celluloid, Xyloidine,and similar substances. To accomplish this result we dissolve aniline colors in a liquid which is a solvent both of such aniline colors and of compounds of pyroXyline, such as celluloid and similar substances, which solvent, when evaporated, will leave the coloring-matter in intimate union or incorporated with such com pounds without injury to its substance. The solvent which we claim in the present application is a mixture of alcohol and ether,substantially as hereinafter described, and with this equal parts of alcohol and cthersay forty minims of each. The coloring-pigment so formed can be then used for painting or marking the color .upon a surface made of a compound of pyroxyline, such as celluloid andlike substances, by a brush or pencil; but if it is desired to print with such colors upon such surface we have found it preferable to add and thoroughly mix with the solution above described, also, forty minims of carbolic acid, which will prevent the solution from drying too rapidly upon the types or other printing-surface; and as such carbolic acid is also to some extent a solvent of the colors and the celluloid it will aid in the operation. We then allow the substance or surface marked as foresaid to dry, and when the moisture has evaporated marks will be found intimately and permanently united with such substance or surface, and in that condition the decorations so applied cannot be washed off or rubbed off, and the surface may be polished without injury to the colors.

e do not intend to limit ourselves closely to the proportions above named, though the proportion of color to the said solvent may be varied within reasonable limits, as may be also the relative proportions of the alcohol and ether, and that of the carbolic acid when used, such variations affecting the intensity of the color or tint produced or the rapidity of absorption of the color by the celluloid surface or the rapidity of drying of the solution.

It is also evidei'itthatcolors which are analogous to aniline colors by being solublein combined alcohol and ether maybe substituted for aniline colors.

Having fully described our invention, that which we desire to claim and secure by Letters Patent is 1. The process of decorating surfaces composed wholly or in part of compounds of pyroxyline, such as celluloid, Xyloidine,and simisimilar substances, by the application of aniline or equivalent colors, dissolved in alcohol, ether, and carbolic acid, and applied substan- 15 tially as described.

WVitncss our hands this 29th day of January, 1880.

NATHAN HART. ROBERT A. BACON.

Witnesses:

ARTHUR S. HENDRICKS, MICHAEL H. UARDOZO.