JPS5855263B2 - Fabric untwisting and embossed processing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention continuously applies actions such as beating and kneading to fabrics such as woven and knitted fabrics made of highly twisted yarns to untwist the fabric knitting yarns and generate effective rasping. The present invention relates to a method for untwisting and embossing a fabric.

The present inventor has been conducting research for many years on a device that untwists the knitting yarns of a continuously moving long fabric by applying a beating force or a kneading force to the fabric to create a embossed texture.

For example, a device of this type which is a prior art is provided with a pair of upper and lower conveyors that move back and forth or up and down in liquid, or a combination of these, and the fabric to be treated is passed between the upper and lower conveyors, and the There are various types of structures, such as those in which fluid is injected onto the fabric to be processed and the fabric is shaken as it is conveyed, or those in which beating or kneading force is applied to the fabric by other mechanical operating means. However, since the conventional methods consume a large amount of mechanical energy, thermal energy, and water resources, there has been a need for an improved method or device for crimp cloth.

The present invention satisfies such demands and provides a method for untwisting and graining a fabric, which is capable of efficiently graining a processed fabric and continuously producing grains of good quality. It is something.

The present invention will be explained in detail below based on embodiments shown in the drawings.

Example 1 In this example, a predetermined length of the fabric to be treated is made into an endless shape, and the fabric to be treated is repeatedly subjected to kneading force and tapping force in a humid heat treatment chamber at normal pressure. ) is used for processing.

That is, 1 is a moist heat treatment chamber that can be sealed,
Inside this moist heat treatment chamber 1, two vertically spaced endless net conveyors 2 and 2' extend laterally.

Reference numeral 3 denotes a nozzle for injecting a fluid, for example, a fluid or a mixed fluid of liquid and gas, at high pressure into the gap a formed by the upper and lower net conveyors 2 and 2'. 3 are arranged in a vertical staggered manner in the transport direction of the net conveyors 2, 2'.

Reference numeral 4 denotes a liquid receiving tank provided at the inner bottom of the moist heat treatment chamber 1, and inside this liquid receiving tank 4 there is a steam blowing pipe 6 for heating the liquid 5, and a steam injection pipe 6 for heating the liquid 5.
A temperature controller 7 is provided to adjust the temperature of the air conditioner.

The liquid 5 in the liquid receiving tank 4 is ejected under strong pressure from each nozzle 3 by a pump (not shown).

Reference numeral 8 denotes a treated fabric having a predetermined length and an endless shape, and this treated fabric is made of polyester 10, for example.
Woven or georgette knitted fabric made from 0% filament high twist yarn or 65% polyester - 35% cotton
There are various kinds of fabrics such as broad cloth.

The most important thing in the present invention is the height of the gap a formed between the upper and lower net conveyors 2 and 2'.

That is, the gap a formed between the upper and lower net conveyors 2 and 2'
While the fabric 8 to be treated is being transferred as the net conveyors 2 and 2' rotate, the fabric 8 to be treated is subjected to necessary and sufficient kneading by the fluid jet pressure from the nozzle 3. The height of the gap a is set so that force and knocking force are applied.

The height of this gap a differs depending on the type of fabric to be treated, for example, thick fabrics and thin fabrics, and also varies depending on the fluid injection pressure from the nozzle 3.
The aim is to make the meandering width (equal to the gap a) of the meandering fabric 8 formed between both net conveyors as large as possible by the liquid injection pressure.

This is because the meandering width is dog-shaped, which causes effective vibrations in the rising and falling parts of the fabric 8, and this vibration causes a kneading force to act on the fabric.

If the gap a between the net conveyors on both sides is narrow, effective vibration will not occur because the rising and falling lengths of the meandering fabric will be shortened.

In addition, if the gap a between the net conveyors on both sides is wide, the fabric will not be able to be rolled up by the net conveyor, and as a result, the fabric will not be able to be rolled in the gap a, but the fabric will float in the gap a. As a result, the fabric cannot be transferred as the net conveyor rotates.

As is clear from the above explanation, the main point of the present invention is to clamp the fabric to be treated between the upper and lower net conveyors and to transfer the fabric by following the rotation of the net conveyors. The method is to apply the jetting force of the liquid from the nozzle to the cloth to apply an effective beating force and kneading force to the fabric.
A gap a is set between the fabric and the fabric in this gap, and a fluid is blown onto the fabric in this gap to generate vibrations and kneading force on the fabric to be treated, and at the same time, the fabric to be treated is struck onto the net conveyors 2 and 2'. A high-quality graining process is performed by applying beating force.

In other words, the longer the gap a between the upper and lower net conveyors is, the longer the length of the fabric's rise and fall will be. Therefore, the vibration of the fabric at the time of rising and falling is large and an effective kneading force is applied, but if the gap a is made larger than necessary, the contact pressure surface of the fabric net conveyor disappears, and conversely, Tension is applied to the fabric by the liquid injection pressure, and it does not follow the rotation of the net conveyor and is transferred.Furthermore, the fabric is no longer able to be folded onto the net conveyor, causing the desired fabric to be wrinkled. It becomes difficult.

Therefore, when setting the gap a, the type of fabric to be treated must be taken into account. The length of the net conveyor contact surface of the fabric, ie, the net conveyor contact pressure length b per pile of serpentine fabric, was as shown in the following table.

■Constant liquid speed ■Constant nozzle pitch ■Constant nozzle width 30m/sec 50mm 8m Seed Testro 1 //62 /I63 /164 T/C Gabardine T/C Weather Cotton Gabardine T/C Mixed Woven Fabric Width x Length 91. 8 x 10 90.6 x 10 92.6 x 10 107.8 If you select a range that has a pressure contact surface of, for example, 120 mm to 85 mm and has a gap a of 50 to 50 mm,
It is preferable that the diameter is 200 mm, and it can be seen that within this range, meandering formation occurs and effective pie flasion occurs.

An embodiment of how to wrinkle a fabric using the upper and lower net conveyors 2, 2' with the gap a set according to the type of fabric to be treated as described above will be described with reference to FIG.

First, the liquid in the liquid receiving tank 4 is heated to about 70° C., and then both the upper and lower net conveyors 2 and 21 are rotated in the same direction to supply the endless fabric 8 into the gap a.

Furthermore, by injecting the liquid in the liquid receiving tank 4 from each nozzle 3 via a pump, the fabric is swollen by the heated liquid at 70°C, and both net conveyors 2 and 2'
The net conveyors 2 and 21 are conveyed in a meandering manner as the net conveyors 2 and 21 rotate.

Therefore, the fabric transferred by both net conveyors 2 and 2' is repeatedly hit by the upper and lower net conveyors under the pressure of the liquid jetted from the nozzle 3, and furthermore, when the meandering fabric rises and falls, the liquid is jetted out. In this way, the endless fabric 8 is repeatedly kneaded and beaten with a liquid jet force of about 70°C, which causes vibrations due to the force, and an effective kneading force is exerted. After that, the temperature of the liquid is raised to about 85°C. The kneading force and the beating force are repeatedly applied to the fabric 8.

Next, the temperature of the liquid is further increased to about 98° C., and then kneading force and beating force are applied to the fabric with the high temperature liquid.

By repeatedly applying kneading force and tapping force to the fabric while gradually increasing the liquid temperature in this manner, fine graining of good quality is uniformly produced.

Thereafter, the temperature of the rear portion of the cloth is lowered to about 50° C. to slowly cool the cloth on which the graining has occurred.

Embodiment 2 In FIG. 2, this embodiment is an embodiment in which a long fabric 8' is embossed continuously by the same action as described above.

That is, in this embodiment, two vertically spaced endless net conveyors 2, 2' are horizontally installed in a moist heat treatment chamber 1' having a fabric inlet and an outlet, and the upper and lower net conveyors Nozzles 3 for spraying a pressurized liquid or a mixed fluid of liquid and gas into the created gap a are arranged in a vertical staggered manner in the transport direction of the net conveyors 2, 2'.

In addition, three liquid receiving tanks 40, 42, 43 are arranged at the inner bottom of the moist heat treatment chamber 1' along the transfer direction of the net conveyor 21.
is provided.

The liquid receiving tank 4□ holds a liquid at about 70°C, the liquid receiving tank 42 holds a liquid at about 85°C, and the liquid receiving tank 4□ holds a liquid at about 85°C.
3 holds a liquid at about 95°C.

The liquid in each liquid receiving tank is injected at high pressure from a nozzle 3 installed at the top of each liquid receiving tank to the gap a between the upper and lower net conveyors via a pump (not shown). It is.

In this embodiment, when the fabric 8' supplied into the moist heat treatment chamber 1' is continuously transferred and passed by the upper and lower net conveyors 2 and 21, a liquid at about 70°C is first blown onto both nets. The fibers are transferred between conveyors in a meandering manner while being subjected to kneading and beating forces as in the previous embodiment, and gradually begin to untwist.

Next, the untwisting progresses further as kneading force and tapping force are applied to the heated liquid at about 85°C, and wrinkles occur.Then, the entire fabric is loosened by applying kneading force and beating force to the heated liquid at about 95°C. A grain of good quality with uniformity and fineness is produced.

As described above, the present invention provides an endless net conveyor having liquid permeability separated vertically so that the gap a between the conveyors is 50 to 2.
A large number of nozzles that form a 00mm fabric passage and inject heated fluid toward the fabric passage are arranged in a staggered manner along the moving direction of the endless net conveyor, and the fluid pressure ejected from these nozzles The fabric to be transferred in the fabric passage is beaten by a net conveyor, and further vibration is generated to cause the fabric to be swelled and subjected to beating and kneading forces to be applied to the fabric to be transferred between the upper and lower conveyors. Since this is a retwisting and raising method, according to the present invention, the kneading force due to vibration and the beating force due to jet force are effectively applied to the fabric transferred by the upper and lower conveyors using liquid jet pressure. This method has the advantage of producing an effective strainer while saving energy and resources.

[Brief explanation of drawings]

The drawings all show embodiments of the apparatus used to carry out the present invention, and FIG. 1 is a sectional view of the apparatus according to the first embodiment;
FIG. 2 is a sectional view showing the second embodiment. 1.1'...Moist heat treatment chamber, 2,21...
・Endless net conveyor, 3... Tuzzle, 4
,41,4°. 43...Liquid receiving tank, 5...Liquid, 6...
... Heating steam blowing pipe, 7 ... Temperature controller, 8
, 8'... Fabric to be treated.

Claims (1)

[Claims] 1 An endless net conveyor having liquid permeability is arranged vertically to form a fabric passage with a gap (a) of 50 to 200 mm, and a large number of nozzles that spray heated fluid toward the fabric passage are installed in the endless net. They are arranged in a staggered manner along the moving direction of the conveyor, and the fluid pressure ejected from these nozzles knocks the fabric to be transferred in the fabric path against the net conveyor, and further generates vibration, A method for untwisting and embossing a fabric, characterized by applying a beating force and a kneading force to the fabric being transferred between conveyors in addition to swelling.