Improvements in the Preparation of Colors for Distempering.
Year: 1890

page_text: Date of Application, 30th Oct., 1890-Accepted, 7th Mar., 1891
.
COMPLETE SPECIFICATION.
Improvements in the Preparation of Colors for Distempering.
1, JULIUS HAAKE, of 9, Albertstrasse, Radebeul, Dresden, Saxony, in the
Empire of Germany, Manufacturer, do hereby declare the nature of my said inven-
tion, and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :—
Whereas the present method of preparing and mixing colors for distempering,
are both defective and inconvenient in many respects the artisan and wall paper
manufacturer and others having to first soak the size cold and then boil the same
the next day, adding the colors thereto after the size has become sufficiently dark.
In consequence of this unmethodical manner of mixing, it continually occurs that
even skilled operatives either add too much size to the various colors, whereby the
color is rendered liable to crack or peel off; or, by mixing too small a quantity of
size, the various colors are liable to be readily wiped off by any moving article
coming in contact with the same; thus spoiling the work and rendering it necessary
to do it over again.
Now the object of my invention is to remedy such defects, and to prepare colors
for distempering in such a manner that they may be always ready for immediate
use, without the addition of size or other ordinary binding material, by merely
mixing the materials in cold water; the colors prepared by my improved process
being intended to be called "precious moment colors."
In carrying out my invention I prepare a binding material, consisting of a strong
gum containing thick albumen, which is formed by boiling two parts of rye husks
and one part of potato starch, well mixed together. 25 per cent. of this binding
material is added to 75 per cent. of coloring material. But such proportions are
varied according to the nature of the materials; some coloring matters requiring
more binding material and others less. Also in the various branches of the
decorator's art, sometimes a starchy binding material is required, and sometimes an
clastic material.
The advantages attending the use of my invention are as follows:-
The colors may be taken to the work in a dry state, and rendered fluid by mixing
with water on the spot, so that they may be used at once without any fear of the
colors being too strongly or too weakly sized. Also the work may be proceeded
with without loss of time in very cold weather; whereas hitherto the operative ran
the risk of obtaining a thick and gelatinous color, in cold weather, which required
fire heat to render it fit for use. Also moisture or dampness, such as may be
observed in churches, cloisters, convents, schools, barracks, prisons, cellars and the
like, has no influence on these colors, which remain firm and durable producing no
unpleasant smells, as with ordinary wall papers in which the size becomes decomposed
and loses its binding properties. My improved colors are free from corrosive acids,
mordaunts and salts. The usual soaping of walls, which has hitherto been rendered
necessary, dispensed with, as the new colors dry slowly, thus imparting great
uniformity of colored surface and preventing "sets."
When the work is completed the colors remaining in the pots may be allowed to
dry, and may be again made ready for use by the addition of water only ordinary
colors being wasted under similar circumstances, the binding power of the size being
lost by decomposition.
Such sensitive colors as ultramarine blue and green, as well as burnt earths
(terra sienna) may, by my process, be advantageously employed and laid evenly
without losing color or peeling off; a delicate, velvety and firm coating being
produced.

page_text: 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 :-
-
1. The improvements in the preparation of colors, substantially as and for the
purposes herein before described.
2. In the preparation of colors for the purposes aforesaid, the application and
use of vegetable starchy gums in substitution of ordinary size substantially as herein
before described.
Dated 20th Antahan 1800
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent for Applicant.