The Manufacture or Production of Waterproof Coloured Textile Fabrics.
Year: 1894

page_text: Date of Application, 24th. Oct.,. 1.894
Complete Specification Left, 24th July, 1895-Accepted, 24th Aug., 1895
PROVISIONAL SPECIFICATIVA
***
The Manufacture or Production of Waterproof Coloured Textile
Fabrics.
I WILHELM BOEDDINGHAUS, Junior, of 107 Königstrasse, Elberfeld in the
Empire of Germany, Manufacturer, do hereby declare the nature of this invention
to be as follows:-
TM
1
The waterproofing of cloth and other textile fabrics by means of ammoniacal
copper is well known, but all attempts to secure to such waterproofed fabrics a fast
color have been without any practical result, for the reason, that the vegetable dyes
which have been hitherto used in the dyeing of the fabrics, are practically
decomposed by the copper oxide contained in the ammoniacal copper, the result
being that the shades produced therewith become unstable, and quickly fade when
exposed to the action of light.
I have now found that coal-tar dyes, when used in the manufacture of these
waterproof colored textile fabrics do not exhibit the bad qualities hereinbefore
named, and I have now, for the first time, succeeded, in preparing waterproof
flexible textile fabrics in various colors (particularly such as red, orange brown,
yellow, green, blue, and black), which are fast against the action of light.
My new process (of great technical value) is illustrated by the following example,
which is merely typical, and in which I make use of the coal tar dye known
as "diphenylamine orange."
EXAMPLE.
B.
The fibre, yarn, or, fabric, is first dyed in a suitable dye bath prepared from
diphenylamine orange, and containing common salt. The dyed material is carefully
washed and dried, and, if fibre or yarn, is woven. It is then placed in a bathi
prepared from ammoniacal copper, and treated therein in the well-known manner.
When dried, the material will show a color from greyish-green to greyish-yellow,
which color does not fade when the material is exposed to sunlight. The material
thus treated is waterproof and flexible.
It will be obvious that other coal-tar dyes may be used in place of diphenylamine.
orange. For instance, a waterproof and flexible textile fabric showing a blue color,
with olive hue, is obtained, if benzoazurine is used in place of diphenylamine
orange, whilst chloramine yellow yields, in a similar way, a pure yellow fabric.
Diamine black also will produce a deep-black colored fabric.
My new process may be used with fabrics made from any vegetable fibre, that is
to say, cotton, linen, ramie, jute, or the like,, and any coal-tár dyes which are
capable of dyeing the fibre, either directly, or with the aid of suitable mordants,
and which will withstand the action of copper oxile contained in the ammoniacal
copper, may also be used.
The materials thus obtained are waterproof and flexible, and, at the same time, the
colors produced thereon perfectly withstand the action of air and light.
4/11

page_text: UUMI LEIE SPECIFICATION.
The Manufacture or Production of Waterproof Coloured Textile
Fabrics.
I, WILHELM BOEDDINGHAUS, Junior of 107 Königstrasse, Elberfeld in the
Empire of Germany, Manufacturer, 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:-
The waterproofing of cloth and other textile fabrics by means of ammonical
copper is well known, but all attempts to secure to such waterproofed fabrics a fast
colour have been without any practical result, for the reason that the vegetable
dyes which have been hitherto used in the dyeing of the fabrics, are practically
decomposed by the copper oxide contained in the ammoniacal copper, the result
being, that the shades produced therewith become unstable, and quickly fade when
exposed to the action of light.
have now found that coal-tar dyes,, when used in the manufacture of these
waterproof coloured textile fabrics do not exhibit the bad qualities herein-before
named, and I have now, for the first time, succeeded in preparing, waterproof
flexible textile fabrics in various colours (particularly such as red, orange, brown,
yellow, green, blue, and black) fast against the action of light.
My new process (of great technical value) is illustrated by the following
example, which is merely typical, and in which I make use of the coal tar dye
known ab 66
diphenylamine" orange.
EXAMPLE.
The fibre, yarn, or fabric, is first dyed in a suitable dye bath prepared from
diphenylamine orange, and containing common salt. The dyed material is carefully
washed and dried, and, if fibre or yarn, is woven. It is then placed in the
waterproofing bath prepared from ammoniacal copper, and treated therein in the
well-known manner. When dried, the material will show a colour from greyish-
gréén to greyish-yellow, which colour does not fade when the material is exposed
to sunlight.
The material thus treated is waterproof and flexible.
It will be obvious that other coal-tar dyes may be used in place of diphenylamine
orangé.
For instance, a waterproof and flexible textile fabric, shewing a blue colour with
olive hue, is obtained, if benzoazurine is used in place of diphenylamine orange,
whilst chlórainine yellow yields, in a similar way, a pure yellow fabric.
Diamine black also will produce a deep black coloured fabric.
My new process may be used with fabrics made from any vegetable fibre, that is
to say, cotton, linen, ramie, jute, or the like, and any coal-tar dyes, which are
capable of dyeing the fibre, either directly or with the aid of suitable mordants, and
which will withstand the action of copper oxide, contained in the ammoniacal copper,
may also be used.
The materials thus obtained are waterproof and flexible, and, at the same time,
the colours produced therefrom perfectly withstand the action of air and light.
14
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The process of preparing waterproof flexible coloured vegetable textile fabrics,
which consists in dyeing vegetable fibres yarns or fabrics with coal-tar dyes
capable of withstanding the action of ammoniacal copper, or of the copper oxide

page_text: contained therein, washing and drying the dyed goods, subsequently treating
the goods with ammoniacal copper in the usual way, and finally drying them, as set
forth.
2. As a new article of manufacture, a waterproof flexible coloured textile fabric
produced by the process herein before defined, or by any other means affording the
same result.
3. The use in the preparing of a waterproof flexible coloured fabric by means of
ammoniacal copper, of coal-tar dyes capable of resisting the action of the
waterproofing bath, or the copper oxide contained therein, as set forth.
Deted this 24th day of July 1895.
NEWTON & SON,
Agents for the Applicant.