IMPROVEMENTS IN THE MANUFACTURE OF PRINTED FABRICS
Year: 1882

page_text: LETTERS PATENT to John Imray, of No 28, Southampton Buildings, Chancery
Lane, in the County of Middlesex, for an invention of "IMPROVEMENTS IN
THE MANUFACTURE OF PRINTED FABRICS."- -A communication from abroad by
PROVISIONAL SPECIFICATION left by the said John Imray at the Office
of the Commissioners of Patents on the 17th March 1882.
"
JOHN IMRAY of No 28 Southampton Buildings Chancery Lane in the County
of Middlesex "IMPROVEMENTS IN THE MANUFACTURE OF PRINTED FABRICS [A
communication from abroad by Theophile Grison, of Paris, France, Manufacturer.]
This invention relates to the manufacture of ornamental fabrics by printing with
special preparations of colours on dyed fabrics. Hitherto, in printing with colours
on dyed fabrics, either deep colour has been used on a clear ground; or when the
ground is deep a mordant colour has been applied, but these methods give imperfect
results, and in the latter case the fabric is more or less deteriorated by the action
of the mordant. Now according to this invention special colours are employed
which may be termed substitution colours, acting by oxidating or reducing and
colouring the existing tints and taking their place without injuring the fibres.
Thus, on grounds black, blue, gray or of other tints deep or clear, can be produced
substitution colours, red, green, violet, yellow and others; whether the fabric be
entirely of wool or of wool mixed with vegetable fibres. The substitution colours
are composed of salts or solutions baving for base, iron, copper, tin, zinc, chromium,
lead, aluminium and other metals and soluble salts of manganese, chlorates of soda
or potassa and other oxidating salts with glucose, sugar, molasses or other vehicles.
With these bases are mixed aniline colours, yellow, violet, green, red, blue or others
made up with the mucilages usually employed in printing. Several of the salts
may be mixed so as to produce complex bases resulting in very fast colours. The
printing may be applied to fabrics already dyed and several of the substitution
colours may be printed thereon, also on clear tints ordinary colours may be applied
to give depth. After steaming and washing, the colours come out brilliant and
quite fast. As an example, for producing a substitution yellow, one of the metallic
bases above mentioned is dissolved in a quantity depending on the greater or less
depth of tint of the fabric, and to this are added one of the salts mentioned and a
solution of aniline yellow. The mixture being thickened is printed in the usual
way and in like manner other colours are obtained.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Imray in the Great Seal Patent Office on the 4th September
1882.
"
"
JOHN IMRAY of No 28, Southampton Buildings Chancery Lane in the County of
Middlesex IMPROVEMENTS IN THE MANUFACTURE OF PRINTED FABRICS
A com-
munication from Abroad by Theophile Grison of Paris France Manufacturer.
This Invention relates to the manufacture of ornamental fabrics by printing with
special preparations of colours on dyed fabrics. Hitherto in printing with colours
on dyed fabrics either deep colour has been used on a clear ground, or when the
ground is deep a mordant colour has been applied, but these methods give imperfect
results, and in the latter case the fabric is more or less deteriorated by the action of
the mordant. Now according to this invention special colours are employed which
may be termed substitution colours, acting by oxidating or reducing and colouring
the existing tints and taking their place without injuring the fibres. Thus on
grounds black, blue, grey, or of other tints deep or clear, can be produced substitution
colours, red, green, violet, yellow, and others whether the fabric be entirely of wool
or of wool mixed with vegetable fibres. The substitution colours are composed of
salts or solutions having for base, iron, copper, tin, zinc, chromium, lead, aluminium,
and other metals and soluble salts of manganese, chlorates of soda or potassa and
other oxidating salts with glucose, sugar, molasses or other vehicles. With these
bases are mixed aniline colours, yellow, violet, green, red, blue, or others made up
with the mucilages usually employed in printing. Several of the salts may be mixed
so as to produce complex bases resulting in very fast colours. The printing may be
applied to fabrics already dyed, and several of the substitution colours may be
printed thereon, also on clear tints ordinary colours may be applied to give depth.
After steaming and washing the colours come out brilliant and quite fast. As an
example for producing a substitution yellow, one of the metallic bases above mentioned
is dissolved in a quantity depending on the greater or less depth of tint of the
fabric, and to this are added one of the salts mentioned and a solution of aniline
yellow. The mixture being thickened is printed in the usual way. And in like
manner other colours are obtained.
Having thus described the nature of this invention and in what manner the same
is to be performed as communicated to me by my foreign correspondent, I
claim in respect of the manufacture of printed fabrics:-
The use in lieu of mordants of substitution colours prepared and applied
substantially as herein described.
In witness whereof I the said John Imray have hereunto set my hand and
seal this seventeenth day of August in the year of our Lord One thousand
eight hundered and eighty-two.
JOHN IMRAY. (LS.)