Improvements in the Method of and Means for Raising Nap on Cotton Fabrios
Year: 1895

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Date of Application, 20th Apr., 1895
Complete Specification Left, 31st Dec., 1895-Accepted, 15th Feb., 1896
PROVISIONAL SPECIFICATION.
Improvements in the Method of and Means for Raising Nap on
Cotton Fabrios:
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I, EDOUARD LARCHER, of Sotteville-les-Rouen, in the Republic of France,
Manufacturer, do hereby declare the nature of this invention to be, as follows
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This invention relates to improvements in the method of and means for raising
nap on cotton fabric which may be in an unbleached, bleached, dyed, printed,
or woven state or woven colours.
According to this invention the said fabric is passed firstly over a raising roller
or teasel and afterwards underneath or over a rotary brush the speed of which may
be regulated which effect the raising of the whole of the nap; the fabric then passes
over a comb which also raises the nap. Afterwards the fabric. passes immediately
over a cutter formed with helicoidal blades arranged around an axis which cuts the
nap uniformly at the desired height.
After this operation the fabric is subjected to the action of a second brush, then
to that of a second comb and finally to that of a cutter for the purpose of obtaining
antabsolute uniform height of the nap.
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The said operation is followed up by a light brush which erects the nap after
which the fabric is damped by means of a spray and passed over copper, drying
cylinders heated by steam-and rotated in a direction reverse to the travel of the
fabric so as to touch it gently.
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After leaving the said cylinders the fabric is brought into contact with a teasel
which has for it object to open and raise the nap gently, the fabric then passes
underneath a brush after which it is carried by means of two rotating rollers to a
folder actuated by a rod and eccentric.
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COMPLETE SPECIFICATION.
Improvements in the Method of and Means for Raising Nap on
Cotton Fabrics.
I, EDOUARD LARCHER, of 'Sotteville-les-Rouen, in the Republic of France,
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:-
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This invention relates to improvements in the method of and means for raising nap
For
on cotton fabrics which may be in an unbleached bleached, dyed or printed condition
or woven in colours, the apparatus used consisting of a series of provisions adapted
to produce successively and concurrently a perfect regular nap on the cotton
fabric.
According to this invention the fabric unbleached, bleached, dyed, printed or
woven in colours is passed once or several times over the roller or rollers of a nap
raising machine called "teaseler." These rollers are mounted adjustably upon the
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frame of the machine in such a manner, that they may be brought more or less in
contact with the fabric and which adjustment varies in accordance with the nature
of the fabric and the amount of nap desired. The fabric afterwards passes below
a brush rotated quickly, the speed of which may be regulated at will in accordance
with the nature of the fabric under treatment; this brush serves to re-dress the
whole of the nap. The fabric then passes over a suitable comb having teeth formed
thin and close together and a rapid oblique up and down movement imparted for the
purpose of assisting the re-dressing and erection of the nap. The nap may also be
raised vertically by other convenient or suitable means which I may choose to
employ, the fabric then passes immediately over a cutter composed of a number of
blades arranged helically around a shaft or cylinder and which serve to cut the nap
to the height desired.
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After this operation the fabric is subjected to the action of a second brush and a
second comb and then to another cutter for the purpose of obtaining absolute
uniformity and regularity in the height of the map of the fabric. The said
operation is followed up by a slight brushing which clears, the surface of
the fabric of all down, then the fabric is damped by a sprayer worked, by an air
compressor. The fabric afterwards passes over one or several copper rollers heated
by steam and rotated in the same direction in which the fabric travels so as to touch
the fabric more gently than wheu rotating in an opposite direction. When leaving
these drying rollers the fabric comes into contact with fixed or movable teasels having
vegetable or other teeth which serve to properly open and geatly raise the nap;
the fabric afterwards passes over a brush, which polishes the whole of the nap
formed by these various successive operations; the cotton fabric thus raised is
passed, by means of rollers situated above each other to a folding device employed
below same and actuated by at rod and eccentric as is the case in other folding
devices.
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It will be readily seen that cotton fabrics thus raised having a soft touch,
completely approaches wool fabrics and that their hygienic properties are consider-
ably increased.
The method described prevents the nap forming wrinkles, knots, and the like when
rolling or gathering the fabric; the strips, square, designs, colours, shades and the
like are also prevented from losing their form as the nap will not, become mixed;
the rapid wear of the fabric, resulting from pulling out nap of unequal length in
the manufacture, is also entirely overcome.
Upon the said raised cotton surface various effects can be produced by covering
the same with very thin sheets of metal in size and number as may be desired,
inserted between the fabric and the cutting device so as to prevent the action of
the latter or by printing with size. any desired design or pattern, or by suitably
sectioning the cutters.
I may also employ any known cutting device, notably such with blades arranged
horizontally and used for cutting the hair of horses and the like, which blades may
be employed in a larger number and actuated by means of an eccentric or by any
other suitable mechanical means I may desire to employ.
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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-
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The improved method of raising' uap upon unbleached, bleached, dyed, printed
or coloured woven cotton fabrics, as hereinbefore described, substantially 'as and
for the purpose set forth.
f.)
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F BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.
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