Improvement in the Preparation of Barytes for Use as a Pigment.
Year: 1889

page_text: Date of Application, 9th Jan., 1889
Complete Specification Left, 10th Sept., 1889-Accepted, 12th Oct., 1889
PROVISIONAL SPECIFICATION.
Improvement in the Preparation of Barytes for Use as a Pigment.
MILES WILLIAMS 5 St. Albans Road Bootle, Liverpool Manufacturing Chemist do
hereby declare the nature of this invention to be as follows:-
This invention has for its object the Colouring, Dyeing and Staining Barytes, for
use as a pigment or to mix with ordinary pigments or paints and for other purposes.
I take Sulphate of Barium or Baryta in lump or ground to which may be added and
intermixed in varying proportions, Chalk, Pipeclay Alum or Alumina, Oyster shell
white Calcined bones, Paris white, Whiting Lime, Oxides, or Metallic substances and
Colour, Dye or Stain them with solutions of colouring matter from Dye-stuffs, Aniline
colours or dyes decoctions or infusions of colouring substances made with Alkali lyes
and solutions of Alum, as when preparing Lakes, Extracts or essences in water or
spirits of Alcohol, Ethers Ethyls, Aniline Oil, Tar Spirits Oils or other Hydrocarbons
& Glycerine with Indigo Chromates, Sulphates, Gamboge or other drugs yielding
colouring matter. The real object is to colour, dye or stain Barytes and any extract,
decoction infusion, essence or solution of Dye, Dye-stuffs, Stain or other colouring
matter may be used for this purpose either in water or spirits separately or conjointly.
Such colouring matter may be added to or otherwise mixed, mechanically or by hand
with Barytes, with or without a mordant. The Barytes after being dyed or coloured
can be dried, ground, packed or used or if a coloured spirit solution is used the paste
may be put into a close vessel and heated to expell the spirits. Such spirits may be.
condensed in a suitable worm and reused.
I claim for novelty and advantages a coloured dyed or stained Barytes in any
colour which may be used to mix with ordinary pigments without reducing their colour
and value for paints and printing purposes. A coloured Baryte which may be used
alone as a pigment for paints or printing thus reducing the cost-Simplicity of
manufacture The use of Dyes or colouring matter not hitherto used for pigments.
Hitherto Barytes is manufactured and sold as a white or semiwhite powder which
when mixed with pigments or paint materially reduces their opacity, brilliancy, colour
and wearing properties, the object being to reduce the cost. This invention will
reduce the cost and improve the colour when intermixed with pigments. Barytės is
is not now used alone as a pigment or paint but when dyed or stained can be then used
with advantage both with regards effect and cost.
Dated this 7th day of January 1889
MILES WILLIAMS.
COMPLETE SPECIFICATION.
Improvement in the Preparation of Barytes for Use as a Pigment.
MILES WILLIAMS 5 St. Albans Road Bootle Liverpool Varnish Manufacturer do
hereby declare the nature of the invention for IMPROVEMENT IN THE PREPARATION
OF BARYTES FOR USE AS A PIGMENT and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
This invention has for its object the colouring, dyeing and staining Barytes for use
as a pigment or to mix with ordinary pigments or paints and for other purposes. I
take Sulphate of Barium or Barytes in lump or ground to which may be added and
intermixed in varying proportions, Chalk, pipeclay, Alum or Alumina, Oyster shell
white, Calcined bones, Paris white, Whiting, Lime Oxides or other metallic substances
and colour, dyo or stain them with solutions of colouring matter from dyestuffs,
Aniline colors or dyes, decoctions or infusions of colouring substances made with as

page_text: when preparing Lakes, Extracts or Essences in water or Spirits of Alcohol Ethers,
Ethyls, Aniline Oil, Tar spirits, Oil or other Hydrocarbons and Glycerine with Indigo,
Chromates Sulphates Gamboge or other drugs yielding colouring matter. The real
object is to colour dye or stain Barytes alone or mixed with chalk, whiting or similar
substances with any extract decoction, infusion, essence or solutions of dye, dyestuffs
stains or other colouring matter may be used for the purpose, either in water or
spirits separately or conjointly such colouring matter may be added to or otherwise
mixed with Barytes with or without a mordant. As an example I take a solution of
Analine yellow and scarlet dye and chromate of potash and add it to Barytes until it
is sufficiently dyed or stained to produce a red or orange lead substitute. I then dry
it and if desired add to it or add it to a proportion from 10 to 50 per cent. of red or
orange lead and thoroughly mix them in a suitable mixing machine, or I pricepate
the colouring matter especially Carmines and other lakes and then add it to the other
ingredients, a lighter body of pigment being obtained with the addition of chalk,
whiting and similar substances.
The Barytes after being dyed or stained can be dried, ground packed or used, or
if a coloured spirit solution is used the paste may be put into a close vessel and
heated to expell the spirits. Such spirits may be condensed in a suitable worm and
re-used.
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
1st. A coloured, dyed or stained Barytes in any colour, which may be used alone
or to mix with ordinary pigments or paints without reducing their colour or
staining properties and value for paints or painting purposes.
2nd. Reduction in the cost of pigments or paints with cheap material.
3rd. The use of dyes or colouring matter not hitherto used for pigments.
4th. Hitherto Barytes is manufactured and sold as a white or grey powder which
when mixed with pigments or paints materially reduces their opacity, brilliancy and
staining properties the object of adding the Barytes being to reduce the cost. This
invention will reduce the cost and at the same time prevent a loss of staining
body.
Dated this 7th day of September 1889.
MILES WILLIAMS.