JPH08127983A - Method for continuously dyeing fabric and device therefor - Google Patents

Abstract

PURPOSE: To provide a method for continuously dyeing beltlike fabric, capable of carrying out unmanned continuous operation, dyeing in a dark color, improving amount of waste liquor and operation environment so as to dye especially the whole surface and black of fabric in the same color. CONSTITUTION: Ink-jet nozzles 7 and 8 are arranged toward both the sides of the surface and the back of beltlike fabric passing through a route 1 of the fabric. Both the sides of the fabric are sprayed with a dyeing solution of the same color without forming a gap. While the fabric is continuously sent along the route 1 and the dyeing solution of the same color from the ink-jet nozzles 7 and 8 is evenly attached to both the sides of the surface and the back of the fabric. An excessive dyeing solution is not leaked out of a device, squeezing of the dyeing solution is not required before fixing the dye, the amount of waste liquor is extremely reduced and the device can be operated in a clean environment. Productivity can be raised by arranging a great number of ink-jet nozzles 7 and 8 in the width direction of the, fabric so as not to form a gap between jetting zones of respective nozzle elements.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for continuously dyeing a belt-shaped cloth, and more particularly to a continuous dyeing method and apparatus suitable for dyeing the entire front and back surfaces of the cloth with the same color. is there.

[0002]

2. Description of the Related Art A batch method and a continuous method are known as methods for dyeing the entire front and back surfaces of a belt-shaped cloth with the same color. The batch-type dyeing method involves dyeing by dipping the fabric in a dyeing solution placed in a container and heating and stirring for a predetermined time. Putting the fabric in the container and taking out the dyed fabric from the container. Further, the transportation of the taken out fabric to the squeezing device or the steamer is usually performed manually.

On the other hand, in the continuous dyeing method, as shown in FIG. 10, a dye tank 18, a squeezing device (mangle roller) 19, an HT steamer 12, a washing machine 13, and a finishing machine 14 are arranged along a conveying path 1 of a cloth 15. And the cloth 15 continuously conveyed along the conveying path 1 is first immersed in the dyeing liquid 20,
The squeezing device 19 squeezes the excess dyeing liquid, the HT steamer 12 fixes the dye on the cloth, and then the washing and finishing steps are performed for dyeing. In this continuous dyeing method, since the cloth is carried in and carried out from each device by continuously feeding the cloth, labor saving can be realized.

[0004]

The above-mentioned batch-type dyeing method requires labor to perform the work and does not say that the work environment is good, a large amount of waste liquid containing the dye is discharged, and the cloth is carried in and out manually. Therefore, there is a problem that it is difficult to continuously operate the apparatus, and because there is a large amount of dyeing liquid or steam leaking to the outside of the apparatus, work can be performed only in an environment called a so-called factory.

On the other hand, when the conventional continuous dyeing method as shown in FIG. 10 is used, labor saving can be realized and the apparatus can be continuously operated, but the fabric cannot be dyed in a dark color. There was a technical problem. Also, the amount of waste liquid and the working environment are better than those of the batch type, but they cannot be said to be at a satisfactory level.

The present invention was made for the purpose of obtaining an improved technical means by dyeing the entire front and back surfaces of a belt-shaped cloth with the same color. Unmanned continuous operation is possible and dark color can also be dyed. In addition, it is an object to obtain a technical means in which the amount of waste liquid and the working environment are significantly improved as compared with the conventional device.

[0007]

According to the present invention, the above-mentioned problems are solved by jetting dyeing liquid of the same color with ink jet nozzles 7 and 8 on both sides of a strip-shaped cloth conveyed along a conveying path without any gap. are doing. Although a method and an apparatus for dyeing a cloth by using an inkjet nozzle are already known, the conventional dyeing by using an inkjet nozzle is performed on one side of the cloth for a small lot such as a sample product before mass production. It is for dyeing multicolored patterns only. When a pattern is dyed on a cloth, only one side of the cloth is dyed, and it has not been conventionally performed to dye both sides of the cloth using an inkjet nozzle. Further, it has not been performed that the same color is dyed on the entire surface of the cloth with an ink jet nozzle without a gap.

According to the invention of claim 1 of the present application, the belt-shaped cloth 15 is provided.
Inkjet nozzles 7 and 8 are arranged along the conveying path 1 of the cloth toward both the front and back surfaces of the cloth, and these inkjet nozzles 7 and 8 solidly apply the dyeing liquid of the same color to both surfaces of the cloth 15. That is, it is a continuous dyeing method for cloth, which is characterized in that dyeing liquids of the same color are sprayed without gaps.

Further, the invention of claim 2 is provided with a large number of ink jet nozzles 7, 8 of the invention of claim 1, and the plurality of ink jet nozzles 7, 8 are formed in the width direction of the cloth 15 in the ink ejection area of each nozzle element. Is arranged so as not to occur, and the method according to claim 1 is performed.

According to the invention of claim 3 of the present application, the belt-shaped cloth 15 is provided.
A first ink jet nozzle 7 directed toward one surface of the fabric and a second ink jet nozzle 8 directed toward the other surface of the fabric, A steamer 12 for fixing the dye liquor adhering to the cloth is arranged, and a diaphragm device for removing the excess dye liquor adhering to the cloth is provided between the inkjet nozzles 7 and 8 and the steamer 12. It is a continuous dyeing device for fabrics, which is characterized in that it does not exist.

The invention of claim 4 is characterized in that, in the device of claim 3, a large number of ink jet nozzles 7 and 8 are arranged in the width direction of the cloth 15 so that no gaps are formed in the ink ejection regions of the respective nozzle elements. It is what

According to the invention of claim 5 of the present application, the belt-like cloth 15 is provided.
A first inkjet nozzle 7 directed toward one side of the fabric and a second inkjet nozzle 8 directed toward the other side of the fabric. The first inkjet nozzles 7 are disposed so as to face downward above the horizontal portion 5 of the transport path.
The guide means 2, 3 for refracting the cloth conveying path 1 in the right-angled direction or the reverse feed horizontal direction are provided between the second ink-jet nozzle 8 and the position where the ink-jet nozzle 8 is arranged. Is a fabric continuous dyeing device.

According to a sixth aspect of the present invention, in the apparatus of the fifth aspect, the drying devices 11 and 1 for dyeing liquid are provided in the refraction region of the conveying path 1.
7 is arranged.

According to a seventh aspect of the present invention, in the apparatus of the fifth and sixth aspects, the first ink jet nozzle 7 has two or more color nozzle elements 9C for ejecting dye liquids of different colors.
It is characterized by including 9Y, 9M and 9B.

[0015]

According to the method of claims 1 and 2, the ink jet nozzle is provided while the cloth 15 is continuously fed along the conveying path 1 (including the case where the cloth 15 is intermittently fed in minute steps). By solid-printing the dye liquors 7 and 8 of the same color, the dye liquors of the same color adhere to the entire front and back surfaces of the fabric 15 in just proportion. Therefore, this cloth is steamer as before,
By passing through a washing machine and a finishing machine, it is possible to perform the same dyeing as has been conventionally carried out by the dip dyeing treatment.

The jetting amount of the dyeing liquid from the ink jet nozzles 7 and 8 can be electrically controlled, so that it is possible to easily deposit a proper amount of dyeing liquid on both sides of the cloth. Therefore, the excess dye liquor does not leak out of the apparatus, and therefore it is not necessary to squeeze the excess dye liquor before fixing the dye. In addition, the amount of waste liquid can be greatly reduced, and the device can be operated in an extremely clean environment.

According to the method of claim 2 of the present application, the dye liquor can be adhered to the entire front and back surfaces of the cloth 15 without leaving the ink jet nozzles 7 and 8 running in the width direction of the cloth 15. The transport speed can be increased, and the productivity is improved.

According to the apparatus according to claims 3 and 4 of the present application, it is possible to obtain a dyeing apparatus most suitable for carrying out the method according to claims 1 and 2.

When the ink jet nozzle is arranged so as to jet the dyeing liquid downward, the position where the dyeing liquid adheres to the cloth 15 can be controlled most accurately. When the entire surface of the cloth is solid-printed with the same color, the minute deviation of the adhesion position of the dye liquor does not cause a big problem. Therefore, claim 1 of the present invention
Also, as long as the apparatus is used only for carrying out the method of claim 2, the jet direction of the dyeing liquid of the inkjet nozzles 7 and 8 may be horizontal.

According to the apparatus described in claims 5, 6 and 7 of the present invention, an apparatus suitable for carrying out the method described in claims 1 and 2 of the present application can be obtained, and a desired monochromatic pattern can be formed on one side of the cloth 15. It is also possible to obtain a highly versatile device capable of dyeing a multicolor pattern with accurate accuracy. That is, when a pattern is dyed on one side of the cloth 15 with the device according to any one of claims 5 to 7, only the first inkjet nozzle 7 is used, and the ejection timing of each nozzle element is controlled by a computer, whereby a conventional inkjet is realized. The same dyeing operation as that performed with a dyeing apparatus using a nozzle can be performed.

Further, according to the apparatus of claim 6, the dyeing liquid jetted by the first ink jet nozzle 7 dries quickly, so that the dyeing liquid is prevented from adhering to the guide roller 4 for guiding the cloth. By providing the transport path in a Z or S shape, it is possible to obtain a dyeing line which is compact and rational in terms of equipment arrangement.

[0022]

1 is a side view schematically showing a first embodiment of the present invention. The cloth conveying path 1 is bent in an S shape by the guide rollers 2, 3 and 4 on the upstream side.
The first inkjet nozzle 7 is arranged on the horizontal portion 5 of the device with the nozzle element 9 facing downward. A second inkjet nozzle 8 is arranged on the second horizontal portion 6 of the S-shape with its nozzle element 9 facing downward. The conveyance path 1 is vertical between the first guide roller 2 and the second guide roller 3, and a drying device 11 that blows warm air 10 toward this portion is arranged. This drying device 1
In No. 1, the dyeing liquid sprayed from the first inkjet nozzle 7 onto the cloth 15 is dried to prevent the dyeing liquid from adhering to the peripheral surface of the third guide roller 4. The cloth that has passed through the third guide roller 4 passes through the HT steamer 12, the cleaning device 13, and the finishing machine 14 having the same structure as the conventional one, and becomes a product.

2 and 3 show the ink jet nozzle 7,
8 is a plan view showing an arrangement example of No. 8. In FIG. 2, a plurality of ink jet nozzles 7 and 8 arranged in a row are mounted on a traverser 16 that reciprocates in the width direction of the cloth 15. A plurality of nozzle elements 9 continuously eject a dyeing liquid of the same color. Accordingly, the nozzle element 9 scans the entire surface of the cloth 15 by the reciprocating movement of the traverser 16 and the feeding movement of the cloth 15, and the dye liquor of the same color is uniformly attached to the entire surface of the cloth 15.

In the arrangement of the ink jet nozzles 7 and 8 shown in FIG.
A large number of inkjet nozzles 7, so as to cover the entire width of
8 are arranged in multiple rows in a staggered manner so that the void portions of the nozzle elements 9 in one row are covered by the nozzle elements 9 in the other row. Also in the arrangement of FIG. 3, each nozzle element 9
Continuously jets the dyeing liquid of the same color, and the dyeing liquid of the same color is uniformly attached to the entire surface of the fabric 15 by feeding the fabric 15 in the direction of the arrow.

FIG. 4 shows another structure for forming an S-shape in the nozzle arrangement portion of the transport path, which includes a first horizontal portion 5 and a second horizontal portion.
A large-diameter heater drum 17 is arranged in the bent portion with respect to the horizontal portion 6, and the heater drum 17 refracts the cloth 15, and the first ink jet nozzle 7 dries the dyeing liquid attached to the cloth 15. I am letting you.

FIG. 5 shows another refraction shape of the nozzle arrangement portion of the conveying path. In this example, two guide rollers 2 and 3 form a Z-shaped conveying path. The first inkjet nozzle 7 is arranged in the horizontal portion 5 of the conveying path, and the second inkjet nozzle 8 is arranged obliquely downward in the portion where the conveying path is oblique.

FIGS. 6 to 8 show still another example of the nozzle arrangement portion of the conveying path. In FIG. 6, the two guide rollers 2 and 3 feed the cloth 15 in an inclined zigzag shape. Therefore, both the first inkjet nozzle 7 and the second inkjet nozzle 8 are arranged obliquely downward. Further, in the case of FIG. 7, the first and second inkjet nozzles 7 and 8 are laterally arranged on the vertical transport path. In FIG. 8, the first and second inkjet nozzles 7 and 8 are arranged at the same position in the structure of FIG. 7 so as to face each other.

As described above, the shape of the conveying path 1 in the nozzle arrangement portion and the directions of the ink jet nozzles 7 and 8 can be various, but when it is desired to dye a pattern with the apparatus of the present invention, A structure in which the first inkjet nozzle 7 is arranged downward in the horizontal portion 5 of the transport path as shown in FIGS. 1, 4 and 5 should be adopted.

According to the structure in which the ink jet nozzle 7 is arranged downward in the horizontal conveying path, the arrival point of the dyeing liquid ejected from the ink jet nozzle 7 on the cloth 15 can be accurately controlled. Therefore, the cloth 15 can dye an accurate pattern. This is very important when dyeing a multicolored pattern on a cloth and when expressing an intermediate color by the dot arrangement of dyeing liquids of different colors.

On the other hand, in the structure of FIGS. 7 and 8 in which the ink jet nozzles 7 and 8 are arranged sideways, the dyeing liquid ejected from the nozzles is biased downward due to gravity, so that the ink jet nozzles 7 and 8 are swayed by the shaking of the cloth 15. Even when the distance between the cloth 15 and the cloth 15 changes slightly, the arrival point of the dyeing liquid on the cloth changes, and it is difficult to improve the accuracy of the positional relationship between the dots especially when a multicolor nozzle is used. become.

FIG. 9 is a plan view schematically showing an example of a structure in which the first ink jet nozzle 7 is a multicolor nozzle. In the illustrated example, the four color nozzle elements 9M, 9C, 9 of magenta M, cyan C, yellow Y, and black B are used.
Nozzle with Y and 9B as one set, 4 sets of nozzles 7
And the nozzles 7 are attached to a traverser 16 that reciprocates in the width direction of the cloth 15. 4 for each set
The individual nozzle elements 9M, 9C, 9Y, 9B are arranged so as to be slightly displaced in the feeding direction of the cloth 15, and when dyeing the same color on the entire surface of the cloth 15, all the nozzle elements 9M, 9C, If the same color dye is sprayed from 9Y and 9B, the dyeing speed will be 4 times as compared with the case of printing a multicolor pattern.
It is designed to be doubled.

[0032]

According to the present invention described above, it is possible to obtain a cloth dyeing device which can be used in place of the conventional batch-type or continuous-type dip dyeing, and the entire front and back surfaces of the belt-shaped cloth are continuously operated unattended. A device for dyeing the same color can be obtained.

Further, according to the method and apparatus of the present invention, unattended continuous operation of the apparatus can be performed, dark color can be dyed, and the amount of waste liquid can be reduced to less than one tenth of the conventional apparatus. It is possible, and there is no leakage of dyeing liquid or vapor to the outside of the device,
Dyeing work in a very clean environment is possible.

Further, by adopting the constructions of claims 5 to 7, not only the same color dyeing on the entire surface of the fabric but also continuous dyeing capable of dyeing a single color or a multicolor pattern similar to the conventional ink jet dyeing can be performed. The effect is that a device can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic side view of a first embodiment.

FIG. 2 is a schematic diagram showing an arrangement of nozzle elements in a plan view.

FIG. 3 is a schematic plan view showing another example of the arrangement of nozzle elements.

FIG. 4 is a partial side view showing a second form of the transport path of the nozzle arrangement portion.

FIG. 5 is a partial side view showing a third mode of the transport path of the nozzle arrangement portion.

FIG. 6 is a partial side view showing a fourth mode of the transport path in the nozzle arrangement portion.

FIG. 7 is a partial side view showing a fifth mode of the transport path of the nozzle arrangement portion.

FIG. 8 is a partial side view showing a modified example of FIG.

FIG. 9 is a schematic plan view showing an arrangement example of multicolor nozzles.

FIG. 10 is a schematic side view of a conventional continuous dyeing device.

[Explanation of symbols]

 1 Transport path 2,3 Guide means 5 Horizontal part 7 First inkjet nozzle 8 Second inkjet nozzle 9 (9C, 9Y, 9M, 9B) Nozzle element 11,17 Dryer 12 Steamer 15 Cloth

Claims (7)

[Claims] 1. An inkjet nozzle (7, 8) is arranged along a conveyor path (1) of a belt-shaped cloth toward both front and back sides of a cloth (15) passing through the conveyor path, and these inkjet nozzles (7) are arranged. A continuous dyeing method for a cloth, characterized in that the dyeing solution of the same color is applied to both sides of the cloth (15) by solid printing. 2. A plurality of ink jet nozzles (7, 8) are arranged in the width direction of the cloth (15) so that no gaps are formed in the ink jetting regions of the respective nozzle elements.
A method for continuously dyeing a fabric as described. 3. A first ink jet nozzle (7) having a conveying path (1) for continuously passing a strip-shaped cloth (15), and directing one surface of the cloth along the conveying path, and a cloth. A second ink jet nozzle (8) directed to the other surface and a steamer (12) for fixing the dyeing liquid adhering to the cloth are arranged, and the ink jet nozzles (7, 8) and the steamer ( A continuous dyeing device for a fabric, characterized in that a squeezing device for removing excess dyeing liquid adhering to the fabric is not provided between the device and 12). 4. A plurality of ink jet nozzles (7, 8) are arranged in the width direction of the cloth (15) so that no gaps are formed in the ink ejection areas of the respective nozzle elements.
A continuous dyeing device for the described fabric. 5. A first ink jet nozzle (7) comprising a conveying path (1) for continuously passing a strip-shaped cloth (15), and directing one surface of the cloth along the conveying path, and a cloth. A second ink jet nozzle (8) facing the other surface of the first ink jet nozzle (8), and the first ink jet nozzle (7) is arranged downward above the horizontal portion (5) of the transport path. A cloth conveyance path (1) between the position of the first inkjet nozzle (7) and the position of the second inkjet nozzle (8).
Guide means (2, 3) for refracting the ink in a right angle direction or a reverse feed horizontal direction is provided, and the second ink jet nozzle (8) is arranged so that the jet direction of the dye solution is horizontal or downward. A characteristic continuous dyeing device for cloth. 6. A device for drying a dye liquor in a refraction region of the conveyance path.
6. (11,17) is arranged, The claim 5 characterized by the above-mentioned.
A continuous dyeing device for the described fabric. 7. A nozzle element (9C, 9Y, 9M, 9C, 9Y, 9M, with which the first ink jet nozzle (7) ejects dye liquids of different colors.
9B) is provided, Claim 5 or 6 characterized by the above-mentioned.
A continuous dyeing device for the described fabric.