New or Improved Process for Transferring Printed Matter from Paper to Glass, Earthenware, and other Enamelled Surfaces.
Year: 1897

page_text: Date of Application, 9th Feb., 1897-Accepted, 3rd Apr., 1897
COMPLETE SPECIFICATION.
New or Improved Process for Transferring Printed Matter from
Paper to Glass, Earthenware, and other Enamelled Surfaces.
I, ERNEST WILLIAM BROCK, of 142, Victoria Street, Bristol Stained Glass Artist,
do hereby declare the nature of this invention and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:-
My invention relates to a new or improved process for decorating and illuminating
glass, earthenware, and other enamelled surfaces by transferring coloured designs or
other printed matter from paper to the material to be decorated, and consists in
preparing the enamelled surface with a coating of special varnish, affixing the paper
thereto, removing the paper when the transfer is effected, and then firing the
material in a kiln to fuse the colours and amalgamate them with the enamelled
surface.
In carrying my invention into effect, I prepare the designs to be transferred,
either on blocks, type, lithographic stones, or plates, showing the design on the
block or stone right way up instead of reversed, as in ordinary printing; from
these, with ceramic or other colours suitable for firing, the impressions are printed
on lithographic transfer paper, and one or any number of different coloured
impressions may be taken on the saine sheet of paper, as in ordinary colour printing:
the design is then ready for transfer to the glass or other material, hereinafter called
the plate; I make a thin varnish of Venice turpentine and spirits of turpentine
ground together in a paint mill; and in a warm dry room the plate is treated with
a coating of this varnish, and when nearly dry, the transfer paper, which has
been previously damped at the back, is laid on the varnished surface of the plate
and pressed cr rolled by a resilient rubber, to ensure the thorough adhesion of every
part; the plate is then put to dry, when this is accomplished, the paper is again
wetted until it is soaked through, when it is easily removed from the plate by tearing
or washing with a soft sponge, leaving all the colour on the plate.
The plates are then ready for firing and are put in any kiln suitable for the purpose,
when the coloured prints will be firmly embedded in the enamelled surface, and be
as durable as any other part of the plate.
By this process a design made up of any number of colours can be transferred from
the paper to the plate at one operation, thereby ensuring the greatest accuracy in
laying on, and a considerable saving of time.
When decorations are required on stained glass for windows, the ordinary glass
stain is used as well as ceramic colours.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
:-
The process of transferring prints from paper to glass, porcelain, and other
enamelled surfaces, consisting of printing the design on lithographic transfer paper,
preparing the plates for the reception of the prints, putting them on the plates
and removing the paper therefrom, ready for firing, substantially as and for the
purpose herein described.
Dated this 8th day of February 1897.