AN IMPROVED PROCESS OF AND PRINTING INK FOR TRANSFERRING DESIGNS, PATTERNS, OR DEVICES ON TO VITREOUS OR GLAZED SURFACES
Year: 1875

page_text: PROVISIONAL SPECIFICATION left by Walter Rowland Holyoako at
the Office of the Commissioners of Patents, with his Petition, on
the 27th May 1875.
I, WALTER ROWLAND HOLYOAKE, of Marylebone Road, in the County
of Middlesex, Artist, do hereby declare the nature of the said
Invention for "AN IMPROVED PROCESS OF AND PRINTING INK FOR TRANSFERRING
DESIGNS, PATTERNS, OR DEVICES ON TO VITREOUS OR GLAZED SURFACES," to be as
follows:-
I transfer from a design, pattern, or device, drawn on stone, zinc,
steel, wood, or any convenient original, with a special transferring or
printing ink containing or embodying in its composition the substance
or material necessary by the after treatment of baking, fusing, or
vitrifying, to produce the desired result, I take the transfer on a
substance which will allow it to be readily transferred to any object, no
matter what shape or form. The material best fitted for this purpose is
a paper prepared by being floated upon a solution of indian rubber, in
coal tar or naptha, or any flexible varnish or glutinous substance that
will prevent the impression from sinking into the paper. When dry it

page_text: is again floated on collodion, albumen, strong solution of soap (in
water), or on water containing flour or on size; or instead of floating it
can be applied with a brush. Sometimes instead of the above transfer
paper I employ a sheet of glue and molasses or of vulcanized caoutchouc
or other elastic material capable of depositing an indelible ink or varnish {
upon various surfaces, or ordinary transfer paper may be used, to which
however there is the objection that it has to be wetted before it will leave
⚫ the article and expose the transfer.
'
The object to be ornamented is prepared by being thoroughly cleaned
with alcohol, ammonia, lime, or a solution of hydrochloric acid, and 1
water. The part to receive the design may then (if necessary), be
covered with turpentine, varnish, or any transparent substance, that will
produce a viscous surface, and so take the ornamentation better than a
polished surface. It is then brought into contact with the transfer, and
after the necessary pressure has been applied the substance on which the
design or device was printed is carefully raised and the impression is
seen on the vitreous article to which it was applied. It will sometimes
happen that the impression is not sufficiently dark because it must be
one or two shades darker than the required result, as it loses a little
depth in burning in, but it can be strengthened to any amount by :
painting or dusting over with the same compound (in a dry state) that
the transfer may be printed in what is termed a flux or varnish, and the
oxides or coloring matter added afterwards with a brush.
The object of transferring in varnish or flux only is to enable the
artist to produce the ornamentation in several colors, according to his :
taste. The work must now be allowed to dry for some little time; not
more than a day is necessary before it is completed by being placed in
'an oven or kiln and submitted to a heat sufficient to cause fusion, by:
which means the impression is fixed upon the vitreous material and
made indelible or really unchangeable by the action of air, water, or
gases.