Year: 1881

page_text: I THOMAS HOLLIDAY of the Firm of Read Holliday and Sons of Huddersfield in
the County of York Manufacturing Chemist seek leave to amend the specification
of Letters Patent, No. 1638 of 1881, as shown in red ink in the copy of the original
specification hereunto annexed, that is to say:-at Page 2 line 30 after the words
"understood that" insert the words "I do not claim the process of producing azo
" colors on cotton or other vegetable fibre disclosed in the specification of the
Letters Patent granted to myself and Robert Holliday dated July 6th 1880 and
"numbered 2757 nor any part of such process but "
"
My reasons for making this amendment are as follows:-To prevent any
misunderstanding as to the matters intended to be claimed in the specification of
the said Letters Patent No 1638 of 1881.
Dated this 13th day of July 1885.

page_text: LETTERS PATENT to Thomas Holliday, of the Firm of Read Holliday and
Sons, of Huddersfield, in the County of York, Manufacturing Chemists, for
an Invention of "IMPROVEMENTS IN PRODUCING AŽO COLORS ON COTTON
OR OTHER VEGETABLE FIBRE."
PROVISIONAL SPECIFICATION left by the said Thomas Holliday at the
Office of the Commissioners of Patents on the 14th April 1881.
THOMAS HOLLIDAY of the Firm of Read Holliday and Sons of Huddersfield
in the County of York Manufacturing Chemists. "IMPROVEMENTS IN PRODUCING
AZO COLORS ON COTTON OR OTHER VEGETABLE FIBRE."
In effecting my improvements I first oil the cotton or other vegetable fibre by
any suitable known process such as is employed when oiling fibre for dyeing with
alizarinė dye I then proceed to form on such oiled fibre the colors made by the
combination of diazo or diazo azo compounds with the napthols or other phenolic
bodies.
As an example of the manner in which my Invention may be carried into
effect:-
Cotton yarn may be steeped in a solution of (say) 10 per centum sulphonated
oil neutralized with soda, the superfluous oil in the yarn is then wrung out and
the yarn dried and after the oil is sufficiently oxidised on the fibre I proceed to
wash off in a weak solution of carbonate of soda I then dry the yarn then wash
off in water and again dry the yarn-the yarn is then ready for the formation
thereon of an azo color.
To effect this formation of color the yarn thus prepared may be passed through
a 1 per centum solution of napthol in hot water and when cooled then passed
through a 1 per centum solution of (say) the diazo compound of amido azo benzole;
then into a weak .alkaline solution. The color thus being formed in combination
with the oxidised oil as well as the fibre.
These particulars may be varied.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas Holliday in the Great Seal Patent Office on the 13th October
1881.
THOMAS HOLLIDAY of the Firm of Read Holliday and Sons of Huddersfield
in the County of York Manufacturing Chemists. "IMPROVEMENTS IN PRODUCING
AZO COLORS ON COTTON OR OTHER VEGETABLE FIBRE."
In effecting my improvements I first oil the cotton or other vegetable fibre by
any suitable known process such as is employed when oiling fibre for dyeing with
alizarine dye but in such manner that alkali be fixed on the fibre with the oil.
I then proceed to form on such oiled fibre the colors made by the combination
of diazo or diazo azo compounds with the napthols or other phenolic bodies.
As an example of the manner in which my Invention may be carried into effect
without confining myself thereto
Cotton yarn may be steeped in a solution of (say) 10 per centum sulphonated
oil neutralized with say soda, the superfluous oil in the yarn is then wrung out
and the yarn dried and after the oil is sufficiently oxidized on the fibre I proceed
to wash off in a weak solution of carbonate of soda I then dry the yarn, then
wash off in water and again dry the yarn-the yarn is then ready for the formation
thereon of an azo color.
These operations may be repeated when required. .
To effect this formation of color the yarn thus prepared may be passed through
a 1 per centum solution of napthol in hot water and when cooled then passed
through a 1 per centum solution of (say) the diazo compound of amido azo benzole,
then into a weak alkaline solution. The color thus being formed in combination
with the oxidized oil as well as the fibre.
If the azo solution is not too acid, or too strong, the color will be at once
developed without the additional use of the weak alkaline solution.
These particulars may be varied.
Having thus described my Invention and means which I adopt in carrying the
same into effect I would have it understood that I do not claim the process of
producing azo colors on cotton or other vegetable fibre disclosed in the specification
of the Letters Patent granted to myself and Robert Holliday dated July 6th 1880
and numbered 2757 nor any part of such process but what I claim is--the improve-
ments in producing azo colors on cotton or other vegetable fibre in manner
substantially as described.
In witness whereof I the said Thomas Holliday have hereunto set my
hand and seal this Twelfth day of October One thousand eight hundred and
THOS HOLLIDAY. (L.S.)

page_text: LETTERS PATENT to Thomas Holliday, of the Firm of Read Holliday and
Sons, of Huddersfield, in the County of York, Manufacturing Chemists, for
an Invention of "IMPROVEMENTS IN PRODUCING AZO COLORS ON COTTON
OR OTHER VEGETABLE FIBRE."
PROVISIONAL SPECIFICATION left by the said Thomas Holliday at the
Office of the Commissioners of Patents on the 14th April 1881.
THOMAS HOLLIDAY, of the Firm of Read Holliday and Sons, of Huddersfield,
in the County of York, Manufacturing Chemists. "IMPROVEMENTS IN PRODUCING
Azo COLORS ON COTTON OR OTHER VEGETABLE FIBRE."
In effecting my improvements I first oil the cotton or other vegetable fibre by
any suitable known process, such as is employed when oiling fibre for dyeing with
alizarine dye. I then proceed to form on such oiled fibre the colors made by the
combination of diazo or diazo azo compounds with the napthols or other phenolic
bodies.
As an example of the manner in which my Invention may be carried into
effect-
Cotton yarn may be steeped in a solution of (say) 10 per centum sulphonated
oil neutralized with soda; the superfluous oil in the yarn is then wrung out and
the yarn dried, and after the oil is sufficiently oxidised on the fibre I proceed to
wash off in a weak solution of carbonate of soda; I then dry the yarn, then wash
off in water and again dry the yarn; the yarn is then ready for the formation
thereon of an azo color.
To effect this formation of color the yarn thus prepared may be passed through
a1 per centum solution of napthol in hot water, and when cooled then passed
through a 1 per centum solution of (say) the diazo compound of amido azo benzole,
then into a weak alkaline solution, the color thus being formed in combination
with the oxidised oil as well as the fibre.
These particulars may be varied.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas Holliday in the Great Seal Patent Office on the 13th October
1881.
THOMAS HOLLIDAY, of the Firm of Read Holliday and Sons, of Huddersfield,
in the County of York, Manufacturing Chemists. "IMPROVEMENTS IN PRODUCING
Azo COLORS ON COTTON OR OTHER VEGETABLE FIBRE."
In effecting my improvements I first oil the cotton or other vegetable fibre by
any suitable known process, such as is employed when oiling fibre for dyeing with
alizarine dye, but in such manner that alkali be fixed on the fibre with the oil.
I then proceed to form on such oiled fibre the colors made by the combination
of diazo or diazo azo compounds with the napthols or other phenolic bodies.
As an example of the manner in which my Invention may be carried into effect
without confining myself thereto―
Cotton yarn may be steeped in a solution of (say) 10 per centum sulphonated
oil neutralized with, say, soda; the superfluous oil in the yarn is then wrung out
and the yarn dried, and after the oil is sufficiently oxidized on the fibre I proceed
to wash off in a weak solution of carbonate of soda; I then dry the yarn, then
wash off in water and again dry the yarn; the yarn is then ready for the formation
thereon of an azo color.
These operations may be repeated when required.
To effect this formation of color the yarn thus prepared may be passed through
a 1 per centum solution of napthol in hot water, and when cooled then passed
through a 1 per centum solution of (say) the diazo compound of amido azo benzole,
then into a weak alkaline solution, the color thus being formed in combination
with the oxidized oil as well as the fibre.
If the azo solution is not too acid or too strong the color will be at once
developed without the additional use of the weak alkaline solution.
These particulars may be varied.
Having thus described my Invention, and means which I adopt in carrying the
same into effect, I would have it understood that what I claim is, the improve-
ments in producing azo colors on cotton or other vegetable fibre in manner
substantially as described.
In witness whereof, I, the said Thomas Holliday, have hereunto set my
hand and seal, this Twelfth day of October, One thousand eight hundred
and eighty one
THO³. HOLLIDAY. (L.S.)