JP3258185B2 - Method and apparatus for continuous dyeing of fabric - Google Patents

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 band-shaped cloth, and more particularly to a continuous dyeing method and apparatus suitable for dyeing the entire front and back surfaces of the cloth in the same color. is there.

[0002]

2. Description of the Related Art As a method of dyeing the entire front and back surfaces of a band-shaped fabric in the same color, a batch method and a continuous method are known. The batch-type dyeing method is a method in which a fabric is immersed in a dyeing solution placed in a container and heated and stirred for a predetermined time to perform dyeing, and the fabric is put into the container and the dyed fabric is taken out of the container. The transport of the taken out fabric to the drawing 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 fabric 15. Is arranged, and the fabric 15 continuously conveyed along the conveyance path 1 is first immersed in the dyeing solution 20,
The excess dyeing liquid is squeezed out by the squeezing device 19, the dye on the fabric is fixed by the HT steamer 12, and then the dyeing is carried out through washing and finishing steps. In this continuous dyeing method, the loading and unloading of the fabric to and from each device is performed by continuous feeding of the fabric, so that labor saving can be realized.

[0004]

The above-mentioned batch type dyeing method requires labor and labor, and cannot be said to have a good working environment. A large amount of waste liquid containing dye is produced. Therefore, there is a problem that the continuous operation of the apparatus is difficult, and that the work cannot be performed in an environment such as a so-called factory due to a large amount of dye and vapor leaking out of the apparatus.

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

The present invention has been made for the purpose of obtaining improved technical means for dyeing the entire front and back surfaces of a band-shaped fabric in the same color, and enables unmanned continuous operation and dark color dyeing. In addition, it is an object of the present invention to obtain a technical means which is significantly improved in the amount of waste liquid and the working environment as compared with the conventional apparatus.

[0007]

According to the present invention, the above-mentioned object is achieved by jetting a dye solution of the same color without gaps on both sides of a belt-like fabric conveyed along a conveying path without gaps. are doing. Although a method and an apparatus for dyeing a fabric using an ink jet nozzle are already known, the dyeing using a conventional ink jet nozzle is performed on a single side of the fabric for a small lot such as a sample product before mass production. Only a multicolor pattern is dyed. When dyeing a pattern on a fabric, only one surface of the fabric is dyed, and it has not been conventionally performed to dye both sides of the fabric using an inkjet nozzle. In addition, there has been no practice of dyeing the same color on the entire surface of the fabric using an ink jet nozzle without gaps.

The invention according to claim 1 of the present application is directed to a belt-like fabric 15.
Ink jet nozzles 7 and 8 are arranged along both sides of the cloth that passes through the conveyance path 1 along the conveyance path 1 and the ink jet nozzles 7 and 8 apply the same color dye solution to both sides of the cloth 15. That is, a continuous dyeing method for fabric, characterized in that a dyeing liquid of the same color is jetted without gaps.

According to a second aspect of the present invention, a large number of the ink jet nozzles 7 and 8 according to the first aspect of the present invention are provided. And the method according to claim 1 is carried out.

The invention according to claim 3 of the present application is directed to a belt-like fabric 15.
, A first inkjet nozzle 7 directed to one surface of the fabric along the transport path, a second inkjet nozzle 8 directed to the other surface of the fabric, A steamer 12 for fixing the dye solution attached to the fabric is arranged, and a squeezing device for removing excess dye solution attached to the fabric is provided between the ink jet nozzles 7 and 8 and the steamer 12. A continuous dyeing apparatus for fabrics, characterized in that there is no dyeing apparatus.

According to a fourth aspect of the present invention, in the apparatus of the third aspect, a large number of ink jet nozzles 7 and 8 are arranged in the width direction of the cloth 15 so that no gap is formed in an ink jetting area of each nozzle element. It is assumed that.

The invention according to claim 5 of the present application is directed to a belt-like cloth 15.
And a first inkjet nozzle 7 directed to one surface of the fabric along the transport path, and a second inkjet nozzle 8 directed to the other surface of the fabric. The first inkjet nozzle 7 is arranged downward above the horizontal portion 5 of the transport path, and the first inkjet nozzle 7
Guide means 2 and 3 for refracting the cloth conveying path 1 in a right angle direction or in a reverse feeding horizontal direction are provided between the ink jet nozzles 8 and the second ink jet nozzles 8. A continuous dyeing device for fabric, characterized in that the device is arranged sideways or downward.

According to a sixth aspect of the present invention, in the apparatus of the fifth aspect, a drying apparatus for drying a dye solution is provided in the refraction area of the transport path.
7 are arranged.

According to a seventh aspect of the present invention, there is provided the apparatus of the fifth and sixth aspects, wherein the first ink jet nozzle 7 jets two or more colors of nozzle elements 9C for jetting dyes of different colors.
9Y, 9M, and 9B.

[0015]

According to the method described in the first and second aspects, the ink jet nozzle is used while the cloth 15 is continuously (including intermittently sent in small steps) along the conveying path 1. By the solid printing of the same color dyes 7 and 8, the same color dyes adhere to the entire front and back surfaces of the fabric 15 without excess or shortage. Therefore, as in the past, this fabric was used as a steamer,
By passing through a washing machine and a finishing machine, it is possible to perform the same dyeing as that conventionally performed in the dip dyeing process.

The amount of dye liquor jetted from the ink jet nozzles 7 and 8 can be electrically controlled, so that it is possible to easily apply a sufficient amount of dye liquor to both sides of the fabric. Therefore, the excess dye solution does not leak out of the apparatus, and therefore, it is not necessary to squeeze the excess dye solution before fixing the dye. Further, the amount of waste liquid can be greatly reduced, and the apparatus can be operated in an extremely clean environment.

According to the method of the second aspect of the present invention, the dye solution can be adhered to the entire front and back surfaces of the cloth without gaps without moving the inkjet nozzles 7 and 8 in the width direction of the cloth 15. Can be increased, and productivity is improved.

According to the apparatus described in claims 3 and 4 of the present application, it is possible to obtain an optimum dyeing apparatus for carrying out the method described in claims 1 and 2.

When the ink jet nozzle is arranged so as to jet the dye solution downward, the position at which the dye solution adheres to the fabric 15 can be controlled most accurately. When the entire surface of the fabric is solid-filled with the same color, a slight shift in the adhesion position of the dyeing liquid does not cause a great problem. Therefore, claim 1 of the present invention
If the apparatus is used only for carrying out the method of the second aspect, the jet direction of the dye solution from the inkjet nozzles 7 and 8 may be horizontal.

According to the apparatus according to the fifth, sixth and seventh aspects of the present invention, an apparatus optimal for carrying out the method according to the first and second aspects of the present invention can be obtained, and a desired single-color pattern can be formed on one surface of the fabric 15. In addition, a highly versatile device capable of dyeing a multicolor pattern with accurate accuracy is obtained. That is, when a pattern is dyed on one side of the cloth 15 by the apparatus according to 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. Dyeing operations similar to those performed by a dyeing apparatus using a nozzle can be performed.

According to the apparatus of the sixth aspect, the drying of the dye liquor jetted by the first ink jet nozzle 7 is accelerated, so that the dye liquor is prevented from adhering to the guide rollers 4 for guiding the fabric. By providing the transport path in a Z- or S-shape, a compact and reasonable dyeing line can be obtained from the viewpoint of equipment arrangement.

[0022]

FIG. 1 is a side view schematically showing a first embodiment of the present invention. The cloth transport path 1 is bent in an S-shape by guide rollers 2, 3 and 4 on the upstream side.
The first inkjet nozzle 7 is arranged on the horizontal portion 5 with the nozzle element 9 facing downward. A second inkjet nozzle 8 is arranged in the S-shaped second horizontal portion 6 with its nozzle element 9 facing downward. The transport path 1 is vertical between the first guide roller 2 and the second guide roller 3, and a drying device 11 for blowing hot air 10 toward this portion is arranged. This drying device 1
1 dries the dyeing liquid jetted from the first inkjet nozzle 7 onto the cloth 15 to prevent the dyeing liquid from adhering to the peripheral surface of the third guide roller 4. The fabric that has passed through the third guide roller 4 passes through an HT steamer 12, a cleaning device 13, and a finishing machine 14 having the same structure as in the related art, and becomes a product.

FIG. 2 and FIG.
8 is a plan view showing an arrangement example of No. 8; In FIG. 2, a plurality of ink jet nozzles 7 and 8 in a row are mounted on a traverser 16 which reciprocates in the width direction of the fabric 15, and the dyes of the same color are continuously ejected from a plurality of nozzle elements 9. The nozzle element 9 scans the entire surface of the fabric 15 by the reciprocating motion of the traverser 16 and the feed movement of the fabric 15, and the same color dye solution adheres uniformly to the entire surface of the fabric 15.

The arrangement of the ink jet nozzles 7 and 8 shown in FIG.
So as to cover the entire width of the ink jet nozzle 7,
8 are arranged in a plurality of rows in a staggered manner such that the gaps of the nozzle elements 9 in one row are covered by the nozzle elements 9 in another row. In the arrangement shown in FIG.
Is continuously jetting a dye of the same color, and the dye of the same color adheres uniformly to the entire surface of the fabric 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, in which a first horizontal portion 5 and a second horizontal portion 5 are formed.
A large-diameter heater drum 17 is disposed at a refraction portion between the horizontal portion 6 and the horizontal portion 6. The heater drum 17 refracts the fabric 15, and the first inkjet nozzle 7 dries a dye solution adhered to the fabric 15. Let me.

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

FIGS. 6 to 8 show still another example of the nozzle arrangement portion of the conveying path. In the case of FIG. 6, the cloth 15 is sent in an inclined zigzag shape by two guide rollers 2 and 3. In addition, the first inkjet nozzle 7 and the second inkjet nozzle 8 are both arranged obliquely downward. In FIG. 7, the first and second inkjet nozzles 7 and 8 are horizontally arranged on the vertical transport path. In FIG. 8, the first and second ink jet nozzles 7, 8 in the structure of FIG. 7 are arranged facing each other at the same position.

As described above, the shape of the transfer 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, As shown in FIGS. 1, 4 and 5, a structure in which the first inkjet nozzle 7 is disposed downward in the horizontal portion 5 of the transport path should be adopted.

According to the structure in which the ink jet nozzles 7 are arranged downward on the horizontal transport path, it is possible to accurately control the point at which the dye solution jetted from the ink jet nozzles 7 reaches the cloth 15. Therefore, an accurate pattern can be dyed with the cloth 15. This is very important when a fabric is dyed with a multicolor pattern and when an intermediate color is expressed by dot arrangement of dyes of different colors.

On the other hand, in the structure shown in FIGS. 7 and 8 in which the ink jet nozzles 7 and 8 are arranged sideways, the dye solution jetted from the nozzles is deflected downward by gravity, and the ink jet nozzles 7 and 8 are shaken by the cloth 15 or the like. Even when the distance between the fabric and the fabric 15 changes minutely, the arrival point of the dye solution on the fabric changes, and it is difficult to improve the accuracy of the positional relationship between the dots particularly when a multicolor nozzle is used. become.

FIG. 9 schematically shows, in plan view, an example of a structure in which the first ink jet nozzle 7 is a multicolor nozzle. In the example shown in the figure, nozzle elements 9M, 9C, 9 of four colors of magenta M, cyan C, yellow Y, and black B are used.
Nozzles with Y, 9B as one set
These nozzles 7 are mounted on a traverser 16 that reciprocates in the width direction of the fabric 15. 4 in each set
The nozzle elements 9M, 9C, 9Y, and 9B are slightly shifted in the feed direction of the fabric 15, and when the same color is dyed on the entire surface of the fabric 15, all the nozzle elements 9M, 9C, If the same color dye is jetted from 9Y and 9B, the dyeing speed will be 4 times higher than when multicolor patterns are printed.
It is designed to be doubled.

[0032]

According to the present invention described above, it is possible to obtain a cloth dyeing apparatus which can be used in place of the conventional batch type or continuous type of dyeing. Thus, an apparatus for dyeing the same color can be obtained.

According to the method and the apparatus of the present invention, unmanned continuous operation of the apparatus is possible, and dyeing of a dark color is possible, and the amount of waste liquid can be reduced to one tenth or less of the conventional apparatus. No leakage of dye liquor or vapor outside the device
Dyeing work in a very clean environment is possible.

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

[Brief description of the 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 embodiment of a transport path in a nozzle arrangement portion.

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

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

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

FIG. 8 is a partial side view showing a modification of FIG. 7;

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

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyance path 2, 3 Guide means 5 Horizontal part 7 1st inkjet nozzle 8 2nd inkjet nozzle 9 (9C, 9Y, 9M, 9B) Nozzle element 11, 17 Drying device 12 Steamer 15 Cloth

Continuation of front page (56) References JP-A-5-330085 (JP, A) JP-A-4-327262 (JP, A) JP-A-7-150481 (JP, A) JP-A-7-252784 (JP) , A) JP-A-8-108531 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) D06P 5/00 B41J 2/01 B41J 21/00

Claims (7)

(57) [Claims] An ink jet nozzle (7, 8) is arranged along a belt-like cloth transport path (1) toward both front and back sides of a cloth (15) passing through the transport path, and these ink jet nozzles (7, 8) are arranged. The continuous dyeing method for fabrics, characterized in that the dyeing liquid of the same color is solid-flushed on both sides of the fabric (15). 2. A method according to claim 1, wherein a plurality of ink jet nozzles are arranged in the width direction of the cloth so that no gap is formed in an ink jetting area of each nozzle element.
A continuous dyeing method for the described fabric. 3. A transport path (1) for continuously passing a band-shaped cloth (15), a first inkjet nozzle (7) directed to one surface of the cloth along the path, and a cloth A second ink jet nozzle (8) directed to the other surface of the ink jet nozzle, and a steamer (12) for fixing a dye solution adhered to the fabric, and the ink jet nozzle (7, 8) and the steamer (12) are arranged. 12. A continuous dyeing apparatus for fabrics, characterized in that there is no squeezing device for removing excess dyeing liquid adhering to the fabric between the step 12). 4. A method according to claim 3, wherein a number of ink jet nozzles are arranged in the width direction of the cloth so that no gap is formed in an ink jetting area of each nozzle element.
An apparatus for continuous dyeing of the described fabric. 5. A transport path (1) for continuously passing a band-shaped cloth (15), a first inkjet nozzle (7) directed to one surface of the cloth along the path, and a cloth And a second inkjet nozzle (8) facing the other surface of the paper path, and the first inkjet nozzle (7) is arranged above the horizontal portion (5) of the transport path, facing downward. The cloth transport path (1) is located 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 in a reverse feed horizontal direction are provided, and the second inkjet nozzle (8) is arranged so that the jetting direction of the dyeing liquid is horizontal or downward. A continuous dyeing device for fabrics. 6. An apparatus for drying a dye solution in a refraction area of the transport path.
6. The method according to claim 5, wherein (11,17) is arranged.
An apparatus for continuous dyeing of the described fabric. 7. A nozzle element (9C, 9Y, 9M, 9C, 9M, 9M, 9M, 9M) for ejecting dyes of different colors by a first ink jet nozzle (7).
9B), characterized in that:
An apparatus for continuous dyeing of the described fabric.