Improvements in the Manufacture of Printers' Inks or Paints."
Year: 1897

page_text: Date of Application, 22nd Oct., 1897-Accepted, 11th Dec., 1897
COMPLETE SPECIFICATION.
"Improvements in the Manufacture of Printers' Inks or Paints."
I, ADRIAAN STOOP, of No. 12 Doelenstreet, Amsterdam, Holland, Director of the
Dordsche Petroleum Maatschappy 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.
This invention relates to a process for the manufacture of pigments particularly
printers ink without the use of drying vegetable oils (linseed oil and the like) or of
dryers. This object is obtained principally by the use of a drying mineral oil as
basis for the paint or pigment. A mineral oil, especially useful for the purpose, is
the so called Grisee oil obtained at Grisee near Soerabaya, in Java, which is a drying
mineral oil.
The drying mineral oil is mixed with water, sand and other impurities when it is
obtained from the earth, which impurities must be removed by refining. However
the latter operation must not be carried out with sulphuric acid as it would destroy
the drying properties of the oil. In order to refine or purify the oil, benzine is added
thereto, or the raw oil may be heated to a temperature of from 70° to 80° Cent:
and maintained at this temperature for some time.
When the oil has been refined or purified in this manner, the colours are added
and a valuable paint or pigment is obtained at once, which dries quickly without the
addition of linseed or other fat oil or other dryers.
It may be desirable in some cases to retard the drying of the paint or pigment in
which case a small quantity of petroleum or vaseline is added, but never any fatty
oil.
This process is a great advance in the manufacture of paints or pigments, because
valuable printers ink and other pigments are obtained by the application of the above
described drying mineral oil, without the use of any fatty oil. In consequence the
printers ink can be used much more liquid than that made of linseed oil or similar
substances, and fine lines can be printed more effectively particularly for artistic
printing and illustrations than formerly. These pigments will be found particularly
valuable for autotype, zincography and similar processes, because they yield an
excellent black or coloured illustration and do not smudge on the paper.
The drying of the paint or pigment takes place partly by evaporation and partly
by the oxidation of the mineral oil.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I
claim is :-
1st A process for the manufacture of paints and pigments consisting in grinding
or mixing the colours with drying mineral oils, such as Grisee oil, as basis
substantially as described.
2nd In the carrying out of the process claimed in claim 1, the refining or
purification of the raw drying mineral oil by continued heating, preferably to a
temperature of from 70° to 80° C or by treatment with Benzine. or similar substances
substantially as described.

page_text: 3rd In the process claimed in claims 1 and 2 the addition of petroleum, vaseline,
and the like for retarding the drying of the paint or pigment substantially as
described.
FELL & JAMES
Agents for the applicant.