JPH04119163A - Dyeing of piece article such as stockings - Google Patents

Abstract

PURPOSE:To uniformly dye for a short time by rotating a dyeing drum received piece articles such as stockings, etc., as articles to be dyed at a low speed, sending fixed dyeing solution into the drum under pressure through a pump by transferring positions of the articles to be dyed and sufficiently penetrating the dyeing solution into the articles to be dyed. CONSTITUTION:Bags 1a filled with piece articles to be dyed 1 such as seamless stockings are charged to a rotatable dyeing drum A having many hole parts 2a on the periphery and water is poured into a dyeing tank B, and the drum A is rotated at a low speed, then fixed dyeing solution is jetted into the drum A from jetting holes of dyeing solution-jetting part materials 8 through a pump. The bags 1a filled with said articles to be dyed 1 are dipped in the dyeing solution and the dyeing solution is flowed out from said hole parts 2a, then discharged from a lower part of the dyeing tank B, thus again circulated into the drum A from said dyeing solution-jetting part materials through a circulation pump to dye the articles to be dyed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for dyeing piece articles such as pantyhose and seamless stockings.

BACKGROUND ART Conventionally, drum-type dyeing machines and jet-type dyeing machines are generally known as techniques for dyeing piece articles such as stockings.

A drum-type dyeing machine has a fixed outer dyeing tank, and a perforated plate inside the drum, which is formed into a drum shape. The outer dyeing tank is further provided with a means for supplying and draining water, a means for supplying the dye and an auxiliary agent, and a means for heating the dye liquor, which is a mixture of water, the dye and the auxiliary agent, with steam or the like. In addition, the dyeing drum is configured to be able to rotate at a relatively high speed (around 20 m/win in circumferential speed of the outer circumference of the dyeing drum) using a deceleration motor or the like.

Then, the items to be dyed, such as stockings, are separated into one bag at a time, and the dyeing bags are placed in each room of the dyeing drum in a well-balanced manner, several to several dozen bags per room, and the dye solution is injected to the center of the dyeing drum. After that, it is automatically rotated forward and backward at regular intervals to allow the dye solution to flow naturally.

In addition, the jet dyeing machine dyes items such as stockings in one
Separate the bags into individual bags, push the bags uniformly into at least several dozen bags, and store the baskets in a dyeing tank that is designed to circulate the liquid flow. This is a device that dyes the dyed object in a stationary state through forced circulation.

Problems to be Solved by the Invention However, these techniques have the following problems.

In a drum-type dyeing machine, the dyeing drum that holds the dyed object rotates and the dyed object moves in a floating state, so the dye liquid flows through the dyed object and it can be dipped and drained frequently. Therefore, although it has the advantage that the dye solution penetrates into the object to be dyed better and can dye the object uniformly, it also has the following disadvantages.

(b) Because the dyeing drum rotates at a high speed (around 20 m/win at the circumferential speed of the outer circumference of the dyeing drum), the dyed object moves violently during dyeing, resulting in twisting and twisting of the dyed object.
There are many occurrences of entanglement, disordered Jg-grain loops, and scratches, resulting in poor product yield.

This is especially noticeable in the case of 5ectY (spantex covering yarn).

(b) Since there is little exchange of the dye solution, the dyeing time is long (generally, about 90 minutes for dyeing socks).

On the other hand, a liquid jet dyeing machine uses a high-pressure liquid flow, and compared to a drum dyeing machine, the dyed object does not move, so it has the advantage of shorter dyeing time and fewer scratches. , it has the following drawbacks.

(b) If the objects to be dyed are not pushed into the basket inserted into the dyeing tank and arranged evenly, the flow of the dye solution will vary and uneven dyeing will occur. Furthermore, in order to prevent uneven dyeing, the objects to be dyed must be arranged uniformly within the basket, which requires skill and requires extra time.

(b) Since high pressure is applied from above the dyed object, creases form during dyeing, and these creases are difficult to remove even with setting treatments.

(c) Since the dyed object is pressed down from above, there is less shrinkage of the dyed object during dyeing.

(d) During the softening process, the dyed material is tightly packed,
Moreover, since the particles of fabric softener are rough, there is more adhesion on the surface and less on the inside.

Uneven adhesion of fabric softener occurs.

(e) When there are few objects to be dyed, a dummy is required.

The present invention was developed with the aim of eliminating the various drawbacks mentioned above and utilizing the advantages of both dyeing machines.

Means to solve problems The present invention is as shown in FIGS. 1 to 4.

It is equipped with a plurality of divided rooms 5 that can accommodate the objects 1 to be dyed,
A dyeing drum A that has an opening 2a that can eject a pressurized dye solution into the chamber and that allows the amount of outflow to be smaller than the amount of inflow.
and.

a dyeing tank B that accommodates and rotatably supports the dyeing drum A and stores a dye solution;

a pressurized dye liquid circulation means C for pressurizing the dye liquid and circulating it through the dyeing drum A to the dyeing tank B; a heating means for heating the dye liquid; and rotating the dye drum A at a low speed. It is composed of a driving means E.

With this configuration, the dyed object 1 is accommodated in each part m5 of the dyeing drum A, and while the dyeing drum A is rotated at a low speed, a pressurized dyeing liquid is ejected into the dyeing drum A. The object to be dyed 1 in the upper chamber 5 is pressurized by flowing in, and the dye solution is passed through the object to be dyed, and at the same time
As the dyeing drum A rotates, the dyed object 1 in the upper chamber 5 is immersed in the dye liquid, and the pressure on the dyed object is released to float the dyed object 1 in the dye liquid. moves downward, and the dyed object 1 in the lower chamber 5 moves upward, and dyeing is carried out by alternately passing the dye liquid by pressurizing the dye liquid and floating it in the dye liquid by releasing the pressure. Process.

Example Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The dyeing drum A has a perforated plate 2 having apertures 2a that allows the flow of outflow to be smaller than the flow of inflow, as shown in FIG. As shown in FIG. 2, an opening/closing layer 7 for inserting and taking out the dyed object 1 is provided on the drum 6, which is divided into two chambers 5.5, and a pressurized dye solution is inserted into the drum 6. Dye liquid spouting members 8 having jetting holes 8a (in the embodiment, elongated slots as shown in FIG. 3) for spouting the dye liquid into the perforating drum A are provided at two symmetrical locations on the outer circumference of the perforating drum 6. There is. Further, as shown in FIGS. 1 and 2, a support shaft 9 is inserted through the komai drum, and one side of the support shaft is provided with a branch pipe 10 in the form of a tube through which the dye liquor flows, and branching in the middle. , the flow shaft 11, which joins the tip of the branch pipe to the side surface of the dye liquid jetting member, is passed through the dyeing tank B and fitted onto the support shaft 9, and is fixed and integrated with the side surface of the perforation drum 6. There is. The circulation shaft 11 is connected to a bearing stand 14.
The support shaft 9 is rotatably supported by a bearing 12 provided above, and the dye liquid passes through the dye liquid spouting member 8 via the circulation shaft 11, and the dye liquid spouting hole 8a of the dye liquid spouting member. The liquid is ejected from the hole portion 2a and flows out from the opening portion 2a, but the amount of outflow is smaller than the amount of inflow, and pressure is generated within the perforated drum A.

In the embodiment of the present invention, the kōmei drum A is divided into two to provide two chambers 5, and the dye liquid jetting members 8 are provided at two symmetrical locations on the outer circumference of the kōmei drum 6. For example,
The method of the present invention can be carried out even if the Kōmei drum 6 is divided into three to provide three chambers, and the dye liquid jetting members 8 are provided at three arbitrary positions on the outer periphery of the Kōmei drum. In the invention, the number of the chambers 5 and the number and attachment of the dye liquid jetting members 8 are not limited to the positions.

As shown in Figs. 1 and 2, the staining tank B has a cross section of approximately U.
A tank 15 is formed in a letter shape and has both side plate portions 15a supported by support frames 16, and one side of the tank is attached with a flange 17 that supports a bearing 13, and the other side is attached to a flow shaft 1.
It is attached to a seal flange 18 that seals 1. Further, although the upper part of the tank 15 is open, a door 19 for closing the tank 15 is attached to the opening. The dyeing drum A is housed and rotatably supported, and the dyeing liquid can be stored therein.

In addition, this dyeing tank B is equipped with a water supply valve 2 as shown in FIG.
It is provided so that water can be supplied through 0.

Further, a drain valve 21 is provided on the lower surface of the dye tank B so that water can be drained from the dye tank B.

The dye solution pressurization circulation means C is piped from the bottom of the dye tank B to the inlet side of the pressurization pump 23 via the filter 22.
The outlet side of the pump is connected to a flow rate regulating valve 25 via a check valve 24.
The flow regulating valve is connected to the rotary joint 26.
The pipes are installed in such a way that they can be connected and shut off. Furthermore, it is connected to the piping part of the dye liquid supply mechanism F that supplies the dye liquid.

As shown in FIG. 4, the dye liquid supply mechanism F includes a dye tank 27. Auxiliary agent tank 28゜Fix agent tank 2
9, etc., so as to be able to communicate and shut off via automatic valves 30, 31, and 32, and are arranged so as to communicate with the piping section of the pressurized dye liquid circulation means C.

Then, the dye liquid supply mechanism F is operated to mix the required amount of dye and auxiliary agent into a dye liquid, which is pressurized by the pump 23, and the pressurized dye liquid is distributed from the rotary joint 26 to the distribution shaft 11
Branch pipe 10 - Spouting from the spouting hole 8a of the dye liquid spouting member 8 - Outflowing from the opening 2a of the dyeing drum A - Once stored in the dyeing tank B - Discharged from the lower part - Circulating to the pump 23 It is constructed so that the pressure inside the dyeing drum A can be adjusted by operating the flow rate regulating valve 25 to adjust the inflow amount.

As shown in FIGS. 1 and 2, the heating means includes a heat exchanger 34 that heats the dye liquid at a position below the dyeing tank B, and in the embodiment, a number of steam pipes are installed. As shown in FIG. 4, a control valve 36. The strainer 37 is provided to be able to communicate and shut off via the main valve 38, and the used drain is stored in the trap 39.
．． It is provided to be discharged to the outside via a discharge valve 40.

Furthermore, a temperature sensor 41 is inserted into the lower part of the dyeing tank B.
The signal from the temperature sensor is transmitted to the temperature controller 42, and when the temperature of the dye liquid becomes lower than the set temperature, the control valve 36 is operated,
The structure is such that a predetermined temperature can be maintained.

As shown in FIG. 1, the active means E has a motor stand 43 fixed to the side surface of the tank 15 supported by the support frame 16, and a motor 44 such as a variable speed motor or a deceleration motor is attached to the motor stand. A sprocket 45 is inserted through and locked onto the output shaft of the motor.

On the other hand, a sprocket 47 is located at the tip of the flow shaft 11.
is inserted through and locked into the flow shaft, and is connected to the sprocket 45 by an endless chain 46. Then, by operating the motor 44, the sprockets 45~
The dyeing drum A is configured to be able to rotate at a low speed (2 to 5 m/win and around that at the circumferential speed of the outer circumference of the dyeing drum) via an endless chain 46, a sprocket 47, and a flow shaft 11.

Next, its effect will be explained.

First, piece articles 1 such as pantyhose and seamless stockings are divided into many bags 1a.
Insert one bag at a time. Then, the bag 1a is inserted into the Komei drum 6.

Next, as shown in FIG. 4, water is supplied to the dyeing tank B and the circulation pump 23 is operated to circulate the water.

Next, the motor 44 shown in FIG. 1 is operated to rotate the dyeing drum A, and the heating means is also operated.Next, the dye liquid supply mechanism F is operated to mix the required amount of dye and auxiliary agent, and to make the dye liquid. The dye liquid is then pressurized by the pump 23, and the pressurized dye liquid is ejected from the flow rate regulating valve 25 - the rotary joint 26 - the distribution shaft 11 - the branch pipe 10 - the spout hole 8a of the dye liquid spouting member 8 - the dyeing drum A. It flows out from the opening 2a of the dyeing tank B, is temporarily stored in the dyeing tank B, is discharged from the lower part of the dyeing tank B, and circulates to the pump 23. During this circulation, the flow rate adjustment valve 25
may be operated to adjust the inflow amount and the pressure inside the dyeing drum A. During this time, the dye liquor is heated to a predetermined temperature.

Then, as shown in FIG. 2, a pressurized dyeing liquid is jetted into the dyeing drum A to pressurize the dyed object 1 in the upper chamber 5, and the dyeing liquid is passed through the dyed object, and the dyeing liquid is passed through the dyed object in the lower chamber M5. The dyed object 1 on the lower side is immersed in the dye liquid, and the dye liquid ejected from the spout hole 8a of the dye liquid spouting member 8 on the lower dyed object 1 is spouted into the dye liquid stored in the dye tank B. As a result, the pressure disappears,
The pressure on the dyed object is released and the dyed object 1 is suspended in the dye liquor.

In this process, as the dyeing drum A rotates, the dyed object 1 in the upper chamber 5 moves downward, and the dyed object 1 in the lower chamber 5 moves upward, and the dyeing liquid is increased by pressurizing the dyeing liquid. and the passage of
The dyeing process is performed by alternately releasing the pressure and floating it in the dye solution.

When the dyeing work is completed, the heating of the dye solution is stopped, and the drain valve 21 is operated to drain the dye solution, and then the drain valve 21 is closed, and the water supply valve 20 is operated to supply water and perform the washing operation.
Alternatively, one process is completed by performing fix processing work.

Effect of the invention As described above, according to the present invention, the following effects are achieved.

Since the present invention is configured as described above, the object to be dyed housed in the dyeing drum that rotates at a low speed is pressurized by the pressure dyeing liquid, the dyeing liquid is passed through the object to be dyed, and the dyeing liquid is applied to the object to be dyed. Since sufficient penetration is possible and the position of the dyed object is moved by the rotation of the dyeing drum, uniform dyeing can be achieved, which is an advantage of the drum method, and the dyeing time can be shortened, which is an advantage of the liquid flow method.

Furthermore, since the object to be dyed is immersed in the dye liquid, the object to be dyed floats in the dye liquid and the pressure is released, eliminating creases during dyeing, which are considered to be a disadvantage of the liquid flow method, and improving the quality of the product. (Object to be dyed)
contraction takes place.

Furthermore, since the dyeing drum is rotated at a low speed, the occurrence of twisting, tangles, disordered stitch loops, scratches, etc. in the drum type is greatly reduced, and the yield of the product is improved.

Furthermore, since the objects to be dyed can be easily inserted into the dyeing drum with a gap, there is no need for skill in arranging the objects to be dyed uniformly in the basket in the liquid flow method, and workability can be improved.

Furthermore, since the dyed objects housed in the five dyeing drums can be pressurized by the pressure dyeing liquid, there is no need for a dummy when there are few objects to be dyed, which is a disadvantage of the liquid flow method.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway schematic side view of an apparatus for carrying out the present invention, FIG. 2 is a schematic front view of FIG. FIG. 4 is a partially cutaway schematic perspective view showing one embodiment of the hole, and FIG. 4 is a simplified piping diagram of an apparatus for carrying out the present invention. A: Dyeing drum, B: Dyeing tank, C: Dye liquid pressurized circulation means,
D: heating means, E: driving means, F: dye liquid supply mechanism, 1:
Object to be dyed, 1a: Bag of object to be dyed, 2: Perforated plate, 2a: Opening part, 4: Partition plate, 5: Room, 6: Kongming drum, 7: Door, 8
: Dye liquid ejection member, 8a: Spout hole, 9: Support shaft, 10: Branch pipe, 11: Distribution shaft, 12: Bearing, 13: Bearing, 14: Bearing stand, 15: Tank, 15a: Both side plates, 16 : Support frame, 1
7: Flange, 18: Seal flange, 19: Door, 2o
: Water supply valve, 21: Drain valve, 22: Filter 23 = pump, 24: Check valve, 25: Flow rate adjustment valve.

Claims (1)

[Claims] A rotatable dyeing drum is provided with a plurality of divided chambers capable of accommodating objects to be dyed, and has an aperture that allows a pressurized dye solution to be ejected into the interior of the chamber and that allows an outflow amount to be smaller than an inflow amount. and storing objects to be dyed in each chamber of the dyeing drum, and while rotating the dyeing drum at a low speed, pressurized dyeing solution is jetted into the dyeing drum to pressurize the objects to be dyed in the upper chamber, The process of passing the dyeing liquid through the dyed object, immersing the dyed object in the lower chamber in the dyeing liquid, and releasing the pressure on the dyed object to float the dyed object in the dyeing liquid is carried out in the dyeing drum. As it rotates, the dyed objects in the upper chamber move downwards, and the dyed objects in the lower chamber move upwards. A method for dyeing piece items such as socks, which is characterized by alternating floating and dyeing processes.