CN105734872B

CN105734872B - Capstan dyeing device and capstan dyeing method

Info

Publication number: CN105734872B
Application number: CN201510963395.XA
Authority: CN
Inventors: 藤泽道宪; 星加忠厚
Original assignee: Kuraray Co Ltd
Current assignee: Kuraray Co Ltd
Priority date: 2014-12-26
Filing date: 2015-12-21
Publication date: 2020-07-28
Anticipated expiration: 2035-12-21
Also published as: JP2016125187A; JP6630131B2; CN105734872A

Abstract

Provided are a capstan dyeing device and a dyeing method, which can inhibit the generation of dyeing spots caused by uneven dye concentration in a dye liquid tank. The capstan dyeing device is provided with: a dye liquid tank; a rotating roller disposed above the dye solution tank, the rotating roller supporting an endless annular fabric connecting both ends of the long fabric in a spiral shape, and dipping the lower part of the endless annular fabric into the dye solution while hanging down, and repeating a process of sequentially dipping each part of the endless annular fabric into the dye solution and then lifting up; a guide member that sequentially receives and supports, on a first end portion side of the rotating roll, portions of the endless fabric lifted up from the dye liquid up to a second end portion side of the rotating roll; and a transfer roller that receives the respective portions of the endless fabric sequentially from the guide member at the second end side and transfers the endless fabric to the rotating roller.

Description

Capstan dyeing device and capstan dyeing method

Technical Field

The present invention relates to a capstan dyeing apparatus and a capstan dyeing method for dyeing a long fabric.

Background

As a method for dyeing a fabric, a capstan dyeing method is known. The capstan dyeing method is a method of dyeing a long fabric with a low tension by repeatedly passing the fabric through a dye solution stored in a dye solution tank using a rotating roll (also referred to as a capstan roll or a main drum).

In the capstan dyeing method, the rotation of the rotating roller causes twisting or entanglement of the long fabric, thereby causing spots. As a technique for suppressing such stain, for example, patent document 1 below discloses an automatic spreading type winch dyeing machine in which screw-like projections or grooves are provided in opposite screw directions from the center portion of the crossbar of the main drum to the left and right, and grooves are provided in opposite directions from the center portion to the left and right on the fixed guide near the main drum. In the case of using such an automatic spreading type capstan dyeing machine, the long fabric is guided by fixing when it is lifted from the dye solution tank, and then the cross bar is rotated in the main drum around which the long fabric is wound, so that the fabric is expanded to some extent in the width direction when it passes through the dye solution tank. As a result, the fabric is less likely to twist or wind.

Further, for example, non-patent document 1 below discloses a capstan dyeing method of a spiral loading type in which a long fabric is wound in a spiral shape for a plurality of times so as not to be entangled with each other between a main bobbin and a dye bath, and the fabric is repeatedly passed through the dye bath to be dyed.

Patent document 1: japanese unexamined patent publication No. Hei 09-3765

Non-patent document 1: 'soluble dust coated article dyeing process hidden character ', P.17, Stadium printing Co., Ltd, Shanben Junxiong, flat 10 years 10 months 20 days old

In a conventional spiral loading type capstan dyeing method, a long fabric is wound around the outer periphery of a capstan roller, and a spiral having a shape hanging down into a dye liquid tank is formed on the long fabric. Then, the long fabric is rotated in a spiral manner by the capstan roller, and the long fabric is repeatedly passed through the dye bath. In such a method, since the positions of the dye bath through which the respective portions of the long fabric pass are substantially the same, the amount of the fabric passing through the dye bath per unit time in the vicinity of the wall surface is smaller than that in the vicinity of the center of the dye bath. Therefore, the dye absorption rate in the vicinity of the wall surface of the dye tank is slower than that in the vicinity of the center, and the dye concentration in the vicinity of the wall surface tends to be higher than that in the vicinity of the center. As a result, a difference in dye concentration occurs between the vicinity of the center and the vicinity of the wall surface in the dye tank, which causes spotting. As a method for solving this problem, a method of providing a pump, a pipe, or the like for stirring or circulating the dye liquid in the dye liquid tank is known. However, in such a method, a stirring device for the dye solution such as a pump and a pipe is required in addition to the main mechanism for rotating the long fabric. Therefore, it is difficult to modify only a general winch dyeing apparatus. Therefore, a new capstan dyeing apparatus is required, and in the case of new equipment, the equipment itself is complicated and large-sized, and a large amount of equipment cost is newly generated.

Disclosure of Invention

The invention aims to provide a capstan dyeing device and a dyeing method, which can inhibit the generation of dyeing spots caused by uneven dye concentration in a dye liquid tank.

In a conventional capstan dyeing method for dyeing a long fabric by forming a spiral on the long fabric, as represented by a spiral loading method, only one end of the spiral formed on the outer periphery of a capstan roller is fixed to an endless chain which is engaged with a sprocket arranged on the outer periphery of the capstan roller and circulates, and the other end of the spiral is not fixed to the long fabric. In the long fabric formed with a spiral and fixed at one end, each part of the long fabric repeatedly passes through the same position of the dye liquid tank even if the spiral rotates. Therefore, the dye is concentrated once passing through the region having a high dye concentration in the dye tank, and is diluted once passing through the region having a low dye concentration. Therefore, there is a problem that stains occur on the long fabric depending on the area through which the fabric passes in the dye bath. The present inventors have found that, in a capstan dyeing method of a spiral loading type, by circulating each part of a long fabric so as to uniformly pass through the entire region in a dye solution tank, the entire long fabric can be uniformly dyed, and have obtained the present invention.

That is, a capstan dyeing apparatus according to one aspect of the present invention includes: a dye tank which stores dye liquid; a rotating roller (capstan roller) disposed above the dye solution tank, supporting an endless annular fabric (closed-loop rope-shaped fabric) connecting both ends of the long fabric in the longitudinal direction in a spiral shape, and dipping the lower part of the endless annular fabric into the dye solution while hanging down, and repeating a process of sequentially dipping each part of the endless annular fabric into the dye solution and then lifting up; at least one guide member that sequentially receives and supports, on one end side (first end side) of the rotating roll, the respective parts of the endless fabric lifted up from the dye solution up to the other end side (second end side) of the rotating roll; and a transfer roller that receives the respective portions of the endless annular fabric from the guide member in order on the other end side (second end side) and transfers the endless annular fabric to the rotating roller. According to such a capstan dyeing apparatus, the endless fabric can be sequentially moved from the second end side to the first end side of the capstan roller by the capstan roller disposed above the dye solution tank. Further, the part of the endless fabric moving to the first end portion side returns from the capstan roller to the second end portion side of the capstan roller again via the guide and the transfer roller, and passes through each region of the dye liquid tank uniformly. According to such a capstan dyeing apparatus, the entire endless fabric can be uniformly dyed without providing any equipment such as a pump and piping.

Another aspect of the present invention is a capstan dyeing method using the above capstan dyeing apparatus, including the steps of: winding a long fabric along the outer periphery of a rotating roller, and forming a spiral on the long fabric, the lower part of which hangs down and is immersed in a dye solution; forming an endless loop fabric by connecting both end portions in the longitudinal direction of the long fabric formed in a spiral shape; and repeatedly performing immersion into and lifting from the dye solution on each part of the endless annular fabric while circularly moving the endless annular fabric by the rotating roller and the transfer roller. In addition, in the case where the step of forming the spiral further includes a step of bonding both ends of the long fabric in the width direction to form the long fabric into a rope-like fabric before the step of forming the spiral, twisting, and rubbing are less likely to occur in the long fabric, and the long fabric is more likely to move circularly.

Preferably, the winch dyeing apparatus further includes a spiral forming unit including: the endless chain is engaged with the sprocket and suspended in the dye solution tank, and the spiral screw is disposed substantially parallel to the longitudinal direction of the rotating roll.

Preferably, the transport roller includes a drive roller and an opposed roller opposed to the drive roller, and the distance between the drive roller and the opposed roller can be set to a distance at which the endless annular fabric is not substantially compressed. Preferably, the transfer roller is driven by the counter roller. According to this aspect, since the endless annular fabric passes through the dye solution substantially without being compressed, occurrence of stain due to pressing of the absorbed dye or wrinkle due to compression can be suppressed.

Another aspect of the present invention is a capstan dyeing method using the above capstan dyeing apparatus, including the steps of: continuously winding the long fabric around the outer periphery of the rotating roll by circulating and moving the endless chain in a state in which one end of the long fabric is fixed to the endless chain, and forming a spiral in which the lower part hangs down and is immersed in the dye solution on the long fabric by rotating the spiral screw to feed the other end of the long fabric to the other end side (second end side) of the rotating roll; forming an endless loop fabric by connecting both end portions in the longitudinal direction of the long fabric wound around; and repeatedly performing immersion into and lifting from the dye solution on each part of the endless annular fabric while circularly moving the endless annular fabric by the rotating roller and the transfer roller. In addition, in the case where the step of forming the spiral further includes a step of bonding both ends of the long fabric in the width direction to form the long fabric into a rope-like fabric before the step of forming the spiral, twisting, and rubbing are less likely to occur in the long fabric, and the long fabric is more likely to move circularly.

According to the capstan dyeing apparatus and the capstan dyeing method of the present invention, in the capstan dyeing method for dyeing a long fabric by forming a spiral on the long fabric, such as a spiral loading type, it is possible to uniformly dye the entire long fabric without adding a stirring device of a dye solution for eliminating a difference in dye concentration in a dye solution tank.

Drawings

Fig. 1 is an explanatory view of a capstan dyeing apparatus 10 according to an embodiment of the present invention, as viewed from above.

Fig. 2 is a partially sectional explanatory view of the capstan dyeing apparatus 10 of fig. 1 viewed from the front.

Fig. 3 is a partial sectional explanatory view of the capstan dyeing apparatus 10 of fig. 1 viewed from the left side.

Fig. 4(a) to 4(d) are explanatory views illustrating a step of forming a spiral on a long fabric in a dyeing method using the capstan dyeing apparatus 10 of fig. 1.

Fig. 5 is an explanatory view illustrating a step of forming an endless ring-shaped fabric by connecting both ends of a long fabric formed in a spiral shape in a dyeing method using the winch dyeing apparatus 10 of fig. 1.

Description of the reference numerals

1 dye liquid groove

2 capstan roller (rotating roller)

First end of E1 capstan roller 2

Second end of E2 capstan roller 2

3 spiral screw

4 a-4 e guide

5 transfer roller

5a drive roller

5b drive roll (opposite roll)

5c guide roller

6 a-6 d motor

7 support roller

8 endless chain

10 dyeing device

11 dye liquid

12 Sewing machine

20 endless loop fabric

20' rope fabric

20a, 20b rope-like fabric 20

S chain wheel

Detailed Description

Hereinafter, an embodiment of a capstan dyeing apparatus (hereinafter, also simply referred to as a dyeing apparatus) and a dyeing method using the same of the present invention will be described with reference to the drawings.

Fig. 1 is an explanatory view of a dyeing apparatus 10 according to an embodiment of the present invention, as viewed from above. Fig. 2 is a partially sectional explanatory view of the dyeing apparatus 10 of fig. 1 viewed from the front. Fig. 3 is a partial sectional explanatory view of the dyeing apparatus 10 of fig. 1 viewed from the left side.

In fig. 1 to 3, reference numeral 1 denotes a dye solution tank, reference numeral 2 denotes a capstan roller (rotating roller) having a first end E1 and a second end E2 in the longitudinal direction, reference numeral 3 denotes a spiral screw constituting a spiral forming member, reference numerals 4a to 4E denote guides, and reference numeral 5 denotes a transfer roller constituted by a drive roller 5a opposed to each other and a drive roller (opposed roller) 5b opposed to the drive roller 5 a. Either one of the drive roller 5a and the drive roller 5b may be a non-drive roller which is not driven. Further, reference numeral 5c is a guide roller provided between the transfer roller and the capstan roller, reference numeral 6a is a motor for rotating the capstan roller 2, reference numeral 6b is a motor for rotating the drive roller 5b, reference numeral 6c is a motor for rotating the drive roller 5a, and reference numeral 6d is a motor for rotating the helical screw 3. The spiral screw 3 is disposed substantially parallel to the longitudinal direction of the capstan roller 2.

Reference numeral 7 denotes a support roller which is disposed substantially parallel to the longitudinal direction of the capstan roller 2 and supports the endless loop fabric which is separated from the capstan roller 2 and hangs down in the dye solution tank 1, thereby stabilizing the circling. Further, reference numeral 8 denotes a shape for continuously forming a rope-like fabric 20' fixed at one end by its rotation, which is wound around the capstan roller 2 and hangs down to the dye solution tank 1, and the shape is sequentially moved from the E1 side to the E2 side by the rotation of the spiral screw 3 to form a spiral endless chain. The endless chain 8 is engaged with a sprocket S provided on the outer periphery of the capstan roller 2 on the side of the end E1.

A dye solution 11 is stored in the dye solution tank 1. Reference numeral 20 denotes an endless annular fabric as a dyed object. The spiral portion formed on the endless loop fabric 20 is dipped into the dye solution 11 in the dye solution tank 1 below the capstan roller 2. As shown in fig. 3, each part of the endless fabric 20 is cyclically moved in one direction by the rotation of the capstan roller 2 and the

drive rollers

5a and 5b in the arrow direction.

Fig. 4(a) to 4(d) are explanatory views for explaining a step of forming a spiral on a string-shaped fabric (a closed loop string-shaped fabric) 20'. Fig. 5 is an explanatory view for explaining a step of forming the endless loop fabric 20 by connecting the

respective end portions

20a, 20b of the rope fabric 20' formed into a spiral shape by the step explained in fig. 4.

In the winch dyeing method using the winch dyeing apparatus 10 of fig. 1, first, as shown in fig. 4(a), the end portion 20a of the rope-shaped fabric 20' is fixed to the endless chain 8 engaged with the sprocket S provided on the first end portion E1 side of the winch roller 2. Then, the capstan roller 2 is rotated to circulate the endless chain 8, and the rope-shaped fabric 20' is introduced into the dyeing apparatus 10.

Here, the rope-shaped fabric is a fabric obtained by bending a long fabric into a tubular shape in the width direction, and continuously joining the ends in the width direction by sewing or the like so as to maintain the tubular shape in the longitudinal direction, thereby forming a rope-shaped fabric. By forming the rope-shaped fabric, twisting, entanglement, and friction are more likely to occur in the long fabric, and the circulation movement described later is made easier. Instead of forming a rope-shaped fabric, both ends of a long fabric may be joined to form an endless loop-shaped fabric. In this embodiment, an example of forming a rope-shaped fabric is described.

The type of fabric is not particularly limited. Specifically, for example, a leather-like sheet such as artificial leather, a woven fabric, a knitted fabric, or the like can be used without particular limitation. The fiber material for forming the fabric may be, but is not particularly limited to, a synthetic fiber such as polyester, polyamide, propylene, polypropylene, or polyurethane, a semi-synthetic fiber such as acetate fiber, triacetate fiber, or protein copolymer fiber, a regenerated fiber such as rayon fiber or cuprammonium fiber, or a natural fiber such as cotton, hemp, wool, or silk, alone or in combination.

Next, as shown in fig. 4(b), the capstan roller 2 and the endless chain 8 are further circulated, and the spiral screw 3 is rotated, whereby a rope-like fabric 20' is wound around the capstan roller 2 and the lower part hangs down to the dye solution tank 1. At this time, the unfixed end portion 20b of the string-shaped fabric 20' is gradually fed from the side of E1 to the side of E2 by the rotation of the spiral screw 3.

As shown in fig. 4(c), the fabric rope 20' is wound around the capstan roller 2 from the first end E1 to the second end E2 in the longitudinal direction.

Next, as shown in fig. 4(d), the unfixed end portion 20b of the rope fabric 20' is passed through the transfer roller 5 and the guides 4e to 4 a. And, the end portion 20a fixed to the endless chain 8 is released. Then, the

end portions

20a and 20b are connected to form the endless loop fabric 20. As a connecting method, for example, as shown in fig. 5, a method of overlapping and sewing the end portion 20a and the end portion 20b by using a sewing machine 12 prepared on the left side surface side of the dyeing apparatus 10 is exemplified.

Next, a step of sequentially transferring each part of the endless annular fabric 20 from the transfer roll 5 to the capstan roll 2, moving the endless annular fabric 20 from the first end E1 to the second end E2 while circling the endless annular fabric with the rotation of the capstan roll 2, repeatedly immersing each part of the endless annular fabric 20 in the dye solution 11, and then transferring the endless annular fabric 20 lifted up from the dye solution 11 to the transfer roll again will be described.

As shown in fig. 1 to 3, in the dyeing apparatus 10, an endless annular fabric 20 is wound around a capstan roller 2 and a support roller 7. Further, the lower side of the spiral is immersed in the dye solution 11.

The portion of the endless loop fabric 20 not forming a loop is lifted from the dye solution tank 1 on the first end E1 side of the capstan roller 2, supported by the guides 4a to 4E in this order, and guided to the transfer roller 5 on the second end E2 side of the capstan roller 2. The transfer roller 5 sequentially moves the endless loop fabric 20 introduced from the guide 4E to the second end E2 of the capstan roller 2.

The endless loop fabric 20 is formed into a loop along a path passing through the capstan roller 2, the dye solution tank 1, the guides 4a to 4e, and the transfer roller 5. The endless loop fabric 20 is dyed while being circularly moved in one direction in accordance with the rotation of the capstan roller 2 and the

drive rollers

5a and 5b in the direction of the arrow shown in fig. 3.

The circulation path at any one point of the endless loop fabric 20 will be specifically described. Referring to fig. 1 or 2, one point of the endless fabric 20 hangs down into the dye solution tank 1 at the first end E1 side of the capstan roller 2, and is then supported by the guide 4 a. Then, any one point of the endless loop fabric 20 supported by the guide 4a is further moved while being sequentially supported by the guides 4b to 4 e. As shown in fig. 3, any point of the endless fabric 20 reaching the guide 4e passes through the driving

rollers

5b and 5a, and then reaches the guide roller 5 c. The transfer roll 5 changes the traveling direction of the endless loop fabric 20 to, for example, a substantially 90-degree direction. Further, the driving roller 5a and the driving roller 5b do not form a kneading roller. Specifically, the outer periphery of the driving roller 5a and the outer periphery of the driving roller 5b are spaced apart from each other to such an extent that the endless annular fabric 20 is not compressed. Any point of the endless loop fabric 20 sequentially comes into contact with the outer peripheral surfaces of the

rotating drive rollers

5b and 5a, and moves in the direction of the arrow in fig. 3. Then, the guide roller 5c supports any one of the

drive rollers

5b and 5a, and moves to the first end E1 of the capstan roller 2. Then, the capstan roller 2 moves to the first end E1 of the capstan roller 2 while circling at any point of the movement to the first end E1 of the capstan roller 2. At this time, after any one point is immersed in the dye liquid tank 1, the lifting process is repeated the same number of times as the number of times of winding the capstan roller. At this time, while moving from the second end E2 to the first end E1 of the capstan roller 2 in a spiral state, any one point passes through the dye solution 11 in the dye solution tank 1 repeatedly. Since any one point passes through the dye solution uniformly over the entire area in the dye solution tank 1, the entire endless fabric 20 is dyed in a state in which it is less likely to be affected by the variation in the dye concentration in the dye solution tank 1. That is, since the endless annular fabric 20 itself circularly moves in one direction with respect to the longitudinal direction thereof, each part of the endless annular fabric 20 passes through the entire region from the vicinity of the center of the dye solution tank 1 to the vicinity of the wall surface without leaving a gap, and thus occurrence of dyeing unevenness in dyeing of the endless annular fabric 20 is greatly suppressed.

Claims

1. A capstan dyeing device is characterized by comprising:

a dye tank which stores dye liquid;

a rotating roller disposed above the dye solution tank, supporting an endless annular fabric connecting both ends of the long fabric in the longitudinal direction in a spiral shape, and repeating a process of immersing and then lifting each part of the endless annular fabric in the dye solution in order while hanging down the lower part thereof and immersing the fabric in the dye solution;

at least one guide member that sequentially receives and supports, on a first end side that is one end side of the rotating roll, the respective portions of the endless fabric lifted up from the dye liquid up to a second end side that is the other end side of the rotating roll; and

a transfer roller that receives the respective portions of the endless loop fabric from the guide in order on the second end side, which is the other end side, and transfers the respective portions to the rotating roller;

the transfer roller includes a drive roller and an opposed roller opposed to the drive roller,

the distance between the drive roller and the counter roller may be set to a distance that does not compress the endless loop fabric.

2. Capstan dyeing unit in accordance with claim 1,

the winding device further comprises a winding member, and the winding member comprises: a sprocket provided on an outer peripheral surface of the rotating roller on the first end side, an endless chain engaged with the sprocket and hanging down to the dye solution tank, and a spiral screw arranged in parallel along a longitudinal direction of the rotating roller.

3. Capstan dyeing unit in accordance with claim 1,

the endless fabric is provided with a rotating roll, and the endless fabric is supported by support rolls which are arranged in parallel along the longitudinal direction of the rotating roll.

4. A dyeing method for a capstan using the dyeing apparatus for a capstan of claim 1, comprising the steps of:

winding the long fabric around the outer periphery of the rotating roller, and forming a spiral on the long fabric, the spiral being immersed in the dye solution with a lower portion hanging down;

forming an endless loop fabric by connecting both end portions in the longitudinal direction of the long fabric wound around the fabric; and

while the endless annular fabric is circularly moved by the rotating roll and the transfer roll, the respective portions of the endless annular fabric are repeatedly subjected to the treatment of immersing in the dye solution and lifting up from the dye solution.

5. A dyeing method for a capstan using the dyeing apparatus for a capstan of claim 2, comprising the steps of:

continuously winding the long fabric around the outer periphery of the rotating roll by circulating and moving the endless chain in a state in which one end of the long fabric is fixed to the endless chain, and forming a spiral that hangs down on the long fabric and is immersed in the dye solution by rotating a spiral screw to feed the other end of the long fabric to the second end side, which is the other end side of the rotating roll;

while the endless annular fabric is circularly moved by the rotating roll and the transfer roll, the respective portions of the endless annular fabric are repeatedly subjected to the treatment of immersing in the dye solution and lifting from the dye solution.

6. Capstan dyeing process according to claim 4 or 5,

the method further includes, before the step of forming the spiral shape, a step of bonding both ends of the long fabric in the width direction to form the long fabric into a rope-shaped fabric.