JPS587747B2 - Low liquor ratio jet dyeing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the improvement of a jet dyeing machine, and its purpose is to prevent ``tangles'' and ``entanglements'' from the endless dyed fabrics set up inside the machine. To provide a low bath ratio dyeing machine capable of smoothly circulating circulation in ideal conditions without causing any trouble, and capable of dyeing in large quantities at surprisingly low bath ratios.

Another object of the present invention is to provide a low-liquid-ratio jet dyeing machine with a new mechanism that can circulate and move dyed fabrics without applying excessive tension to the fabrics.

Furthermore, another object of the present invention is to provide a low-liquid ratio jet dyeing machine at low cost, which does not have wasted space in the dye tank and is easy to maintain.

A liquid flow path is provided in the longitudinal direction of the upper part of the horizontally long dye liquid tank, and the dyed fabric is placed in an endless manner in these liquid flow paths and the dye liquid tank to generate a continuous flow of dye liquid in the liquid flow path. A dyeing machine that dyes by circulating and moving the dye is conventionally known as a jet dyeing machine.

Various types of jet dyeing machines have been proposed, such as overflow one-way type and jet jet type, but in all types, a large amount of dye liquid is accumulated inside the dye liquid tank. A method is used in which the cloth to be dyed is moved while being undulated in a distilled dye solution.

However, in such conventionally known jet dyeing machines,
The following difficulties were pointed out.

(a) The bath ratio (quantitative ratio of dye solution to dyed fabric) is too large and does not meet the requirements from the viewpoint of resource conservation and pollution prevention.

(b) When the fabric to be dyed is pulled up from the dyeing liquid and transferred to the liquid flow path, it is subjected to excessive tension by the combined dyeing liquid,
Not suitable for dyeing delicate fabrics.

(c) The dyed fabric flowing down the liquid flow path is affected by the vortex generated by the collision between the flowing dye liquid and the standing dye liquid.
This causes tangles and tangles, causing trouble when the reel pulls the liquid up into the liquid flow path.

The present inventor has discovered the above (a) to (a) in conventional jet dyeing machines.
In order to solve the problem of (c), we should first use JP-A-55-1075.
He achieved great results by developing No. 70 ``Low Liquor Ratio Flow Dyeing Machine,'' which had a configuration in which a belt conveyor was installed along almost the entire length of the dye tank. As a result, the dye tank had to become significantly larger, and there was still room for improvement and rationalization in terms of cost and maintenance management.

The present invention is a further improvement of the previously developed "Low Liquor Ratio Liquid Flow Dyeing Machine" disclosed in JP-A-107570. In a liquid jet dyeing machine that moves and circulates dyed fabric C arranged in an endless manner between tanks 2 by causing a continuous dye liquid flow in the liquid flow path 1, the liquid flow path 1 is A casing 32 integrally communicates and surrounds the terminal end d and the dye liquid tank 2, and a sliding plate 3 having a large number of guide vertical grooves 31 is interposed at the bottom of the casing 32 to connect the liquid flow path 1. The dyeing liquid flowing down from the cloth C is used as an anti-friction medium.
Furthermore, a belt conveyor 4 having a water-permeable transfer belt 41 inside the dye solution tank 2 is installed along a pull-up port U from the sliding port S of the cloth C to be dyed to the liquid flow path 1. This invention provides a low-liquid-ratio jet dyeing machine characterized in that the dyeing machine is arranged so that the dyeing machine has an upward slope and the upper transfer surface of the conveying belt 41 is higher than the liquid level.

To add further notes regarding the present invention, in the illustrated embodiment, the dye liquid tank 2 is disposed below the upstream part u of the pipe-shaped liquid flow path 1, and the dye liquid tank 2 is disposed below the terminal end d of the liquid flow path 1. A sliding plate 3 is arranged from the dye liquid tank 2 toward the dye liquid tank 2,
It constitutes a part of the dyed fabric circulation path between the liquid flow path 1 and the dye liquid tank 2.

The dye liquid tank 2 has a drum shape as a whole, and has a liquid flow path 1.
It is located below the upstream part of.

The dye liquor D is collected in this dye liquor tank 2, and the dye liquor D collected here is sucked into the liquor delivery pipe 5 by the action of the circulation pump P, and is interposed in the middle of the liquor delivery pipe 5. The liquid is heated to a required temperature through the installed heat exchanger H, and is discharged from the discharge port 11 provided at the upstream starting end of the liquid flow path 1 to generate a continuous liquid flow in the liquid flow path 1.

In the illustrated example, the sliding plate 3 is airtightly encapsulated by a casing 32 that integrally communicates with the liquid flow path 1 and the dye liquid tank 2, and the liquid flow path 1 and the sliding plate 3 have a large number of water permeable holes 61. The water permeable reversing plate 6 is connected to the dyeing liquid tank 2, and the other end of the sliding plate 3 is connected to the dyeing liquid tank 2. From the end d of the flow path, it transfers to the water-permeable reversing plate 6, where it is drained, turns around, moves to the sliding plate 3, and further slides down this sliding plate 3 into the dye liquid tank 2.

In this case, since corrosion resistance and smoothness are required as the material for the sliding plate 3, it is preferable to use a corrugated stainless steel plate (see FIG. 2).

A slit-shaped spring opening 33 is provided in the sliding plate 3 in the vicinity of the connecting portion with the water-permeable reversing plate 6 over substantially the entire width thereof.

Therefore, the dye liquid flowing down the liquid channel 1 and poured into the water permeable reversing plate 6 is absorbed from the water permeable holes 61 and flows on the lower surface of the water permeable reversing plate 6, but a part of it flows from the water permeable reversing plate 6. The liquid flows out from the liquid opening 33 onto the surface of the sliding board 30 and assists in the sliding movement of the cloth C to be dyed.

In FIG. 3, reference numeral 34 denotes a water guiding plate for uniformly flowing the dye liquid onto the surface of the sliding board 3.

As the belt conveyor 4 disposed inside the dye solution tank 2, a wire mesh conveyor is used, for example, since the transfer belt is required to have water permeability. It is set to have an upward slope from the port S toward the suction port U of the liquid flow path 1.

The upper transfer surface of the transfer belt 41 on which the dyed cloth C is placed must be located above the liquid level.

In the figure, reference numeral 8 denotes a cloth feeding reel installed in the pulling opening u.

In this way, the dyed cloth C set in an endless manner flows down the liquid flow path 1 while being assisted by the rotation of the cloth feed reel 8, and transfers to the sliding plate 3 while reversing the transfer direction with the water permeable reversing plate 6, where it is transferred. The dye fluid is given a cyclical motion in which it slides down, is transferred to the belt conveyor 4 in the dye solution tank 2, and is transferred to the lower part of the draw-up port u of the solution flow path 1.

By the way, when dyeing a rope-shaped cloth by circulating it at high speed at a low bath ratio, the most important point is to aim for the maximum bath ratio and to perform high-speed circulation without damaging the fabric. , regarding the realization of the minimum bath ratio,
Although the problem was solved by the invention of No. 5-107570, depending on the quality of the target fabric, it was not sufficient in terms of dyeing the fabric with a good texture without damaging it.

Generally, as the cloth speed increases, the pulling tension by the reel increases in proportion to the pulling height x the square of the speed x (weight of cloth + weight of water-containing liquid + weight of entrained liquid).

Increasing the speed to obtain level dyeing generates large pulling resistance and excessive tension.

The present invention can solve these problems all at once,
In order to minimize the resistance during pulling up, the conveyor is arranged above the liquid level of the dye liquid tank 2 to minimize the moisture content of the cloth during pulling up, to eliminate the generation of entrained liquid, and to tilt the arrangement of the conveyor 1. The lifting height is kept as small as possible by transferring the material on an upward slope.

In addition, the sliding plate 3 is adopted to address the shortcoming of the conveyor set, which is the small effective internal volume, and it is possible to dye a large amount of cloth with a small device at high speed in a short time and with small tension, eliminating all dyeing defects. This is possible.

In this way, according to the present invention, it is possible to perform high-speed, low-liquid ratio dyeing that cannot be expected from conventional jet dyeing machines, and because it uses a sliding plate system, the entire machine becomes huge. This provides many advantages, such as being able to prevent this from occurring and being significantly advantageous in terms of production costs and maintenance.

Although the dyeing machine of the present invention is generally constructed as described above, the present invention is not limited to the illustrated embodiment, and various modifications are possible within the scope of the claims.
For example, regarding the water permeability of the transfer belt 41 in the belt conveyor 4, any type may be used as long as the dye liquid impregnated into the cloth to be dyed can be dripped and removed during transfer, and any type of liquid flow generation method in the liquid flow path 1 may be used. Regarding this, various conventionally used means such as an overflow type or a jet type can be adopted.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a mechanical explanatory diagram schematically showing the internal structure of the dyeing machine of the present invention, and FIG.
The figure is a slope view showing an example of the sliding plate used in the same dyeing machine.
FIG. 3 is an enlarged explanatory view of the spring outlet portion of the sliding board. 1...liquid flow path, 2...dye liquid tank, 3
・・・・・・Sliding plate, 31 ・・・Guide vertical groove, 4
...Belt conveyor, 41...Transfer belt. C...Dyed fabric, S...Slip opening, d...
...Terminal end (of the liquid flow path), u... Pull-up port (to the liquid flow path).

Claims (1)

[Scope of Claims] 1. The dyed fabric C arranged in an endless manner between the liquid flow path 1 and the dye liquid tank 2 is moved and circulated by causing a continuous flow of dye liquid in the liquid flow path 1. In a jet dyeing machine for dyeing, a casing 32 integrally communicates and surrounds the terminal end d of the liquid flow path 1 and the dye liquid tank 2, and a guide vertical groove 31 is provided at the bottom of the casing 32. A large number of sliding plates 3 are interposed to allow the dyed fabric C to slide down using the dye liquid flowing down from the liquid flow path 1 as an anti-friction medium, and a water-permeable transfer belt is provided in the dye liquid tank 2. 41, so that the belt conveyor 4 having the transfer belt 41 has an upward slope along the pull-up port U from the slip-in port S of the dyed fabric C to the liquid flow path 1, and the upper transfer surface of the transfer belt 41 is placed at a level above the liquid level. A low liquor ratio jet dyeing machine characterized by being arranged higher.