Improvements in Aniline Black Dyeing or Printing Processes for Obtaining a Fast Aniline Black in Textile Fibres and Fabrics.
Year: 1886

page_text: Date of Application, 28th Oct., 1886
Complete Left, 26th July, 1887.
Complete Accepted, 13th Sept., 1887
Improvements in Aniline Black Dyeing or Printing Processes for
Obtaining a Fast Aniline Black in Textile Fibres and Fabrics.
We, ALFRED AYKROYD and WILLIAM EDWARD AYKROYD, and JOHN SMITH, all of
Oakwood Dye Works, Thornton Road, Bradford, in the County of York, Dyers do
hereby declare the nature of our said invention to be as follows
--
Our Invention has for its object the production of aniline black dyed, or printed
textile fibres and fabrics of a fast nature and which will resist the operations of
scouring milling and bleaching.
In the preparation of textile materials according to our Invention for dyeing, or
printing fast aniline black, the material is padded with an oily, or soapy emulsion
which may be made either from a sulphated oil, or a mixture of oil and alkali, such as
is used in preparing textile materials previously to dyeing them Turkey red, or the
soap refuse resulting from calico printing processes, wool scouring processes, or from
any other suitable source may be used.
After the material is thus treated it may be dried, or washed and then dyed, or
tinted with any suitable colouring matter, capable of imparting to it a distinct shade,
or colour.
The preparation of the material may consist of either, or all of the above described
processes; that is it may be effected without the dyeing, or tinting above
described, or the tinting, or dyeing may be employed and the padding with the oily,
or soapy emulsion omitted.
When the preparation of the material is effected by the combined processes, the
padding of the material in the oily, or soapy emulsion and the dyeing, or tinting may
be carried out simultaneously if desirable.
After preparing as above described the goods, or material may be either dried, or
washed when they are dyed, or printed with aniline black. This may be effected by
any known method, or means.
Apparatus of convenient and suitable construction may be employed in the carrying
out of the processes above set forth.

page_text: This Invention is applicable to the preparation and dyeing, or printing of all kinds
of textile fibres in the raw state and to partly, or completely manufactured textile
fabrics a fast aniline black.
By the employment of the processes of dyeing, or printing textile fibres and
fabrics a fast aniline black, as herein set forth, we produce a fast black dyed, or printed
textile fibre, or fabric which will resist, or not be detrimentally affected by the
operations of scouring, milling and bleaching.

page_text: Obtaining a Fast Aniline Black in Textile Fibres and Fabrics.
We ALFRED AYKROYD and WILLIAM EDWARD AYKROYD and JOHN SMITH all of
Oakwood Dye Works, Thornton Road Bradford, in the County of York Dyers, do
hereby declare the nature of our said invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
Our Invention has for its object the production of aniline black dyed, or printed
textile fibres and fabrics of a fast nature; and such as will resist the operation of
scouring, milling and bleaching.
In the preparation of textile materials that is fibres, or fabrics according to our
Invention for dyeing, or printing a fast aniline black, they are padded in an oily, or
soapy emulsion, which may be made either with a sulphated oil, or a mixture of oil
and alkali, such as is used in preparing textile materials previously to dyeing them
Turkey red or the soap refuse resulting from calico printing processes wool scouring
process may be used; or any equivalent liquid capable of rendering oil soluble in
water is suitable for the purpose.
After the material is thus treated it is preferably dried, or washed in cold water or
both and then dyed, or tinted with any suitable colouring matter, capable of imparting
to it a distinct shade, or colour including black. This may be effected by any known
suitable dyeing, or colouring process.
When the material is thus far treated, or prepared, it is dyed, or printed with
aniline black by any known suitable method, or means. Previously however to the
dyeing, or printing, it is preferably dried, or washed in cold water or both.
The above three combined processes we have found to be most effective and
economical in the quantity of aniline black dye used, but we have also found that fast
aniline black dyed, or printed materials may also be obtained by omitting the tinting
process above described and employing previously to dyeing, or printing with aniline
black, only the padding process above specified. We have also found that an effective
and fast aniline black may be imparted to the material by employing only the tinting,
or dyeing process above described, previously to dyeing it black, thus omitting the
padding process.
When the two preparatory processes of padding and tinting are employed, such
processes may, if desired be carried out as a single process by mixing the padding
liquor and the tinting or colouring liquor together and subjecting the material to such
combined liquors; thereby carrying out the two processes simultaneously-and we
would have it understood that we may employ both the padding and tinting processes
previously to dyeing, or printing goods aniline black that the above described order
of such two preparatory processes may be reversed without departing from this
Invention.

page_text: This Invention is applicable to the dyeing, or printing of all kinds of textile fibres
in the raw state and to partly, or completely manufactured textile fibres, or fabrics a
fast aniline black.
By the employment of the processes of dyeing, or printing textile fibres and fabrics
a fast aniline black as herein set forth we produce a fast black dyed, or printed
material which will resist, or not be detrimentally affected by the operations of
scouring, milling, or bleaching, or become discoloured under the influence of acids.
Also a smaller quantity of aniline dye is required than by any processes heretofore
proposed; the diminution of the quantity of dye required is greatest when both the
padding and tinting processes are employed.
Having now particularly described and ascertained the nature of our said Invention
and in what manner the same is to be performed we wish it to be understood that we
make no claim to any of the sub-processes hereinbefore mentioned separately, except
in so far as they go to make up the improvements in respect of aniline black dyeing
process described in this Specification; but what we claim is :--
First. The process herein described of dyeing, or printing textile fibres, or fabrics
aniline black consisting of the use in combination of the sub-processes, as follows, that
is to say (1) Padding the material in an oily, or soapy emulsion, or equivalent
matter; (2) Tinting, or colouring such material; and (3) then dyeing, or printing
the material thus padded and tinted, or coloured with aniline black; all substantially
as set forth.
Second. The process herein described of dyeing, or printing textile fibres, or fabrics
aniline black, consisting of the use in combination of the sub-processes, as follows,
that is to say :-
-(1) Simultaneously padding the material in an oily or soapy emulsion,
or equivalent matter, and tinting, or colouring it a distinct shade, or colour; and (2)
dyeing, or printing the material thus padded and tinted, with aniline black; all
substantially as set forth.
Third. The process herein described of dyeing, or printing fibres and fabrics
aniline black consisting of the use in combination of the sub-processes as follows,
that is to say (1) Tinting or colouring the material; and (2) dyeing, or printing
the material thus tinted, or coloured with aniline black; all substantially as
set forth.
Fourth. The process herein described of dyeing, or printing textile fibres and
fabrics aniline black, consisting of the use in combination of the sub-processes, as
as follows, that is to say :-(1) Padding the material in an oily, or soapy emulsion,
or equivalent matter; and (2) dyeing, or printing the material thus padded with
aniline black; all substantially as set forth.
Fifth. The process herein described of dyeing, or printing fibres and fabrics aniline
black consisting as a whole of the sub-processes as follows, that is to say :-(1)
Padding the material in the soapy, or oily emulsion and then drying and washing
such material as described; (2) Tinting or colouring such material and then drying
and washing such material as described; and (3) dyeing, or printing the material,
thus treated with aniline black; all substantially as set forth.
Dated this 25th day of July 1887