Note: Descriptions are shown in the official language in which they were submitted.
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This invention relates to a method which permi-ts
advantageously processing thin knitted cloth material through
a high pressure steamer for dyeing, scouring, etc.
A method for dyeing a cloth material through a high
pressure steamer under a high humidity and high temperature has
been known. In such a conventional dyeing method, in general
a long sheet-like material of cloth is singly introduced into
the steamer to carry out a hygro-thermic treatment there.
According to such a method, therefore, the mass producible
quantity of dyed cloth products are limited, though the speed
of treating such cloth materials has been increased as increase
in the humid heat has become possible in these days.
Further, in accordance with the conventional method,
one unit of a high humid heat dyeing device can be used for
processing only one kind of cloth material. Therefore, for
dyeing many kinds of cloth materials, many units of such a
high humid heat dyeing device have been necessary. Particularly,
in cases where a thin knitted cloth material is to be subjected
to such a high humid heat treatment, the knitted cloth material
tends to have an excessive tension, which makes an effective
treatment process hardly possible. In an attempt to solve
such a problem, therefore, such a knitted cloth material is
superposed upon an under-cloth material to prevent the former
from slacking and shrinking or stretching out during the treat-
ment process. However,such an under-cloth material is a consum-
able material and becomes unserviceable in a short period of
time. Besides, such under-cloth material is expensive. The
use of such, therefore, is disadvantageous in terms of economy.
It is an object of this invention to provide a
continuous treatment method which permits efficient mass produc-
tion of treated cloth by simultaneously subjecting more than
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two sheets of cloth -to a dyeing or scouring treatment with the
above mentioned shortcomings of the conventional method elimi-
nated. More specifically stated, in carrying out a dyeing,
scouring or weight reduction -treatment through a hygro-thermic
process in a high pressure steamer (normally operated in a
temperature range from 102 to 160C and at a pressure of from
1 to 5.5 kg/cm2) in accordance with the invented method, two
kinds of cloth materials including one or a plurality of sheets
of knitted cloth and one or a plurality of sheets of woven
cloth are superposed one on top of the other; then, the super-
posed cloth materials are simultaneously supplied to the inside
of the high pressure steamer either after they are partly or
wholly treated with liquid as required or without such prior
liquid treatment. ~hen, the hygro-thermic treatment process
is continuously carried out.
It is another object of this invention to provide a
dyeing process wherein a knitted or woven cloth material to be
dyed is superposed with one or more than one knitted or woven
cloth materials of different kinds; the superposed cloth
materials are immersed in a combined dyeing liquid tank contain-
ing a mixture of dyestuffs capable of sticking fast to the
desired fiber constituents of these cloth materials; and then
these immersed cloth materials are simultaneously subjected to
a hygro-thermic treatment inside a high pressure steamer to
simultaneously obtain dyed products of different kinds.
In accordance with the invented method, more than
two long cloth materials can be simultaneously and continuously
processed under high humidity and high temperature to permit
high efficiency mass production. Besides, in the case of a
knitted cloth material, such a material can be processed under
a no-tension condition as it is superposed on a wove-~ cloth
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material. In o-ther words, such a woven cloth material on which
the knitted cloth is superposed serves as under cloth to
prevent the elongation or shrinking of the knitted cloth mate-
rial under high humidity and high temperature, s~) that the
knitted cloth material can be treated with such high humid
heat in a no-tension state without use of any under cloth.
Further, in accordance with this invention, many
dyed cloth materials OL different kinds can be simultaneously
and continuously obtained. Since many dyed cloth materials
of different kinds are obtainable through a single bath and
a single unit of high pressure steamer, the energy consumption
required for the dyeing process can be reduced to only 20%
or thereabout of the energy consumption by the conventional
method. This is a great advantage of the invented method over
the conventional method in terms of cost.
The above and other related objects and features of
the invention will become apparent from the following detailed
description of preferred embodiments and claims taken in
connection with the accompanying drawings.
The accompanying drawings illustrate embodiments of
this invention, Fig. 1 illustrating a first embodiment example
and Fig. 2 a second embodiment example.
EXAMPLE 1
In the embodiment example illustrated in Fig. 1, a
knitted cloth material is dyed simultaneously with a woven
cloth material. Referring to Fig. 1, a reference numeral 1
indicates a knitted cloth material, and 2 indicate a woven
cloth material. The knitted cloth 1 and the woven cloth 2 are
superposed one on top of the other and are thus simultaneously
guided into a dyeing liquid tank 3 to be impregnated with a
suitable dye. The two cloth materials thus impregnated with
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the dye are guided out of the liquid tank 3 still in the state
of being superposed on each other. The degree of impregnation
is adjusted to a predetermined degree by means of a roll
arrangement 4 before they are introduced together into a high
pressure steamer 5. Inside the high pressure steamer 5, the
two superposed cloth materials are subjected to treatment with
high humidity and high temperature of about 160 C while they
are moved forward by a group of guide rolls 6 in the state of
being superposed on each other. The hygro-thermic process
causes the dye to be fixed to these cloth materials before they
are further moved to the outside of the high pressure steamer.
Although such arrangement to introduce a cloth
material to which a dyeing liquid has been applied into a
high pressure steamer 5 for dyeing under high humid heat is
known, the invented method differs from such a conventional
arrangement in that: It is a principal object of this invention
to superpose a knitted cloth material on a woven cloth material
in supplying them to the inside of the high pressure steamer
for treatment under high humid heat. In accordance with the
method of this invention, the woven cloth material serves
as under cloth for the knitted cloth material to prevent the
latter from elongating, shrinking or slacking and thereby
ensures effective and homogeneous hygro-thermic treatment on
the knitted cloth material. Also, in accordance with the
invented method, such hygro-thermic treatment can be simulta-
neously accomplished for a plurality of cloth materials to
permit efficient mass production as well as economization of
the heat energy required.
Further, in accordance with this invention, the use
of under cloth is no longer required for continuous hygro-
thermic treatment on a very thin knitted cloth material. This
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dispenses with an under cloth material which is a consumable
material and is expensive, so that the invented method is
quite advantageous also in terms of cost reduction.
In this particular example of embodiment, one knitted
cloth material is superposed on one woven cloth material.
However, this invention is not limited to such and is appli-
cable to simultaneous processing of a greater number of cloth
materials. According to results of experiments, two knitted
cloth materials are alternately superposed on two woven cloth
materials to simultaneously process a total of four cloth
materials together to obtain a good result as desired. Also,
in this particular embodiment example, the high humid tempe-
rature treatment process is carried out for dyeing cloth
materials. This invention, however, is not limited to such
a dyeing process but is al,o applicable to a scouring, bleaching
or felting purpose or the like th_t requires a high humid
temperature treatment process.
_XAMPLE 2
Fig. 2 illustrates another embodiment example in
20 which a desired liquid is applied to some parts of the cloth
materials 1 and 2. In Fig. 2, reference numerals 7 and 7'
indicate guide rolls made of rubber for guidirg the cloth
materials 1 and 2 in their state of being superposed on each
other. A liquid contained in a liquid tank 8 is applied to
the circumferential faces of these guide rolls 7 and 7' by
liquid transferring rolls 9 and 9' which are respectively
provided with,for example, raised and recessed parts arranged
in a suitable pattern on their circumferential surfaces. With
the patterned surfaces of the liquid transferring rolls 9 and
9' pressed against the circumferential surfaces of the guide
rolls 7 and 7', the liquid contained in the tanks8 (such as
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a dyeing liquid or a caustic liquid or -the like) is applied to
parts of the cloth materials 1 and 2 being guided by these
guide rolls 7 and 7'. Following this, these cloth materials
are subjected -to a humid heat treatment while they are caused
to travel by a conveyer 10 arranged inside the high pressure
steamer, so that the desired partial treatment, such as dyeing,
scouring, weight reduction can be accomplished as desired.
EXAMPLE 3
The knitted cloth material 1 is prepared using 100%
polyester fiber while the woven cloth material 2 is prepared
using 100% cotton fiber. A disperse dye, an acid dye, a
cationic dye or the like is employed for dyeing the polyester
fiber and a reactive dye, a direct cotton dye, or a durene
dye is employed for dyeing the cotton fiber. One of the
above stated dyes for synthetic fibers and one of these cotton
fiber dyes are selected and mixed in the liquid tank 3. The
cloth materials 1 and 2 are simultaneously immersed in the
mixed dyeing liquid with the cloth materials kept in their
state of being superposed on each other. By this, these
cloth materials 1 and 2 are dyed in solid color either in the
same color or in different colors according to the dyes
employed.
EXAMPLE 4
The knitted cloth material 1 is prepared either in
a pattern or without any pattern using 50% polyester and 50%
wool. The woven cloth material 2 is prepared either in a
pattern or wi'~hout any pattern using 50% polyester and 50%
cotton. As for the dyes employed, for example, a disperse
dye is used for dyeing the polyester fiber, a metallized
chrome dye for the wool and a reactive dye for the cotton.
These dyes are mixed in the liquid tank 3 of a single bath in
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the same manner as in Example 1 above. Then, -the cloth
materials are superposed on each other and are immersed
together in the mixture liquid con-tained in the tank 3. By
this, these cloth materials are simul-taneously dyed in a
plain solid color of a yarn dyed tone or in a pattern
respectively.
