JP3805716B2 - Method for dyeing warp of pile fabric - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for dyeing textiles such as towels, towelets, sheets, clothing fabrics, curtains, carpets and the like.
[0002]
[Prior art]
The woven fabric is a woven structure in which warp and weft are orthogonally crossed according to a certain rule, and typical production processes are a warping process, a weaving process, and a dyeing process.
[0003]
The warping process is a preparation process of the weaving process, and is a process of correcting the necessary number of warp yarns, appropriately adjusting the spacing, length, tension, and the like, and winding them around a beam or the like. The weaving process is a process for forming a woven structure, and the warp and weft warped in the warping process are made to be woven into the woven structure by crossing them vertically. The dyeing process is a process of coloring a thread or fabric with a dye or the like by a method such as dip dyeing or printing.
[0004]
The dyeing process may be colored before weaving the fabric or colored after weaving the fabric. Specifically, (1) yarn dyed at the yarn stage (pre-dyed yarn) or dobby loom or jacquard There were a method of expressing a pattern on a loom, (2) a method of expressing a pattern by printing on a woven fabric, and (3) a method of dyeing and coloring the woven fabric.
[0005]
However, the above dyeing method has drawbacks. That is, according to the method (1), even if multiple colors can be used for the entire woven fabric, since each of the yarns constituting the fabric itself is one color, a complex pattern full of colors can be expressed. Was difficult. In addition, a pattern symmetrical to the front surface was expressed on the back side of the fabric, and it was not possible to express a pattern only on the front surface or a completely different pattern on the front and back sides.
[0006]
In addition, according to the method (2), it is possible to express a complex pattern full of colors, but the dye penetrates only the surface of the fabric, and the depth of the color is higher than that of the pre-dyed fabric. It was missing. This was prominently observed in thick fabrics such as pile fabrics or fabrics having long hairs, and pattern collapse occurred due to the piles or hairs falling during dyeing. In order to improve this, there is a method of printing after applying shirring (cutting the surface of the pile or hairy feet), but the dye can penetrate into the interior to some extent because the fabric has become thinner, but it is not complete, Moreover, there has been a problem that the water retention rate and heat retention of the fabric itself are lowered by cutting the surface of the pile or the hair.
[0007]
The pile woven fabric is a kind of woven fabric, and is composed of warp and weft made of pile warp and ground yarn, and forms a pile on the fabric surface of the woven fabric. It has improved heat retention. The pile is formed by a part of the pile warp jumping out on the surface of the woven fabric by stretching the tension of the pile warp very loosely than the ground yarn.
[0008]
Furthermore, according to the method (3), when the whole can be dyed only in one color and it is desired to express a pattern, the pattern or character is expressed by devising the weaving method, or a post process represented by embroidery. I had to rely on it, and it took time and effort.
[0009]
Japanese Patent Laid-Open No. 5-86538 discloses a method for producing a fabric that can express a complex pattern full of colors and is dyed even inside the fabric. In the method for producing a woven fabric described in JP-A-5-86538, a pile warp is divided into two groups of yarn sheets, each of which is printed, one of the two groups of pile warps is arranged on the front side, and the other is It is arranged on the back side, and weaving a double-sided pile towel fabric together with ground warp and weft so that the pattern, characters, or both based on the printing of the pile warp on both sides of the fabric appears asymmetrically on both sides This is a method for producing a printed towel fabric.
[0010]
Specifically, as shown in FIG. 7, the first group of pile warps 1 wound around the blank beam 11a in the first step is fed in the form of a yarn sheet, and a desired pattern is printed by several flat screen printing machines 12. Then, it is wound around the first beam 13a. Similarly, in the second step, the pile beam 2 of the second group of the blank beam 11b is printed and wound around the second beam 13b. Thereafter, in the third step, the yarns 1 and 2 are sent from the first beam 13a and the second beam 13b so that the two groups of yarn sheets 1 and 2 are turned up and down simultaneously, and wound around one weaving beam (finished beam) 5, It is subjected to a weaving process.
[0011]
According to this method, since the pattern of the printing applied to the pile warp divided into two groups of yarn sheets appears on the surface of the towel fabric as it is, a complicated pattern full of colors can be expressed. Further, by printing the pile warp yarn in the form of a yarn sheet, the pile yarn in the printed portion is colored to the root, and therefore, the root of the towel fabric pile is colored. Further, the pile warp is divided into two groups of yarn sheets, each of which is printed, and either one of the two groups of printed pile warps is arranged on the front side and the other is arranged on the back side. Since the towel fabric is woven, all the printings applied to one group appear on the front side, and all the printings applied to the other group appear on the back side, and there is no relationship between the two. Therefore, the pattern based on the printing of the pile warp, the character, or both of them can appear asymmetrically on both sides of the fabric.
[0012]
[Problems to be solved by the invention]
However, the first group pile warp and the second group pile warp are wound on separate beams (first beam and second beam) during the printing process, so that the tension of the pile warp of both groups is kept the same. It ’s difficult. This is because the tension of the yarn varies even with subtle differences in the atmosphere such as temperature and humidity.
[0013]
Therefore, even if it is wound around the same finished beam, the printing pattern applied to both groups is displaced, and one of the pile warps of both groups is arranged on the front side of the towel fabric and the other is arranged on the back side. In some cases, the pattern is displaced between the front and back surfaces of the towel fabric. Further, when winding the first beam and the second beam around the same weaving beam, it is troublesome and difficult to align the pattern on the front surface and the pattern on the back surface.
[0014]
In this way, when the pattern on the front side and the back side of the towel fabric has shifted, if the towel fabric is cut into one piece, the pattern on the back side is halfway as shown in FIGS. 8 (2) and (3). It was cut and did not sell. Usually, if the misalignment between the front and back patterns is 5 mm or more, it cannot be sold.
[0015]
Further, in the textile manufacturing method described in Japanese Patent Laid-Open No. 5-86538, a flat screen printing machine is used as a printing means and dyed one by one with several flat screen printing machines. In the flat screen printing machine, the belt stops at the time of squeezing and moves after squeezing is completed. Therefore, the beam is sent out by repeated braking and sudden starting for several hundreds of kilometers of pile warp. If the print misalignment is 1 cm, it will not be a commercial product, so it is very difficult to send out the beam, and it is very difficult. Further, with the sudden braking and sudden start, the front pile warp and the back pile warp may be stretched differently, which also causes the pattern to shift.
[0016]
Also, when printing with a flat screen printing machine, the pile warp sheet must be firmly fixed to the belt with glue so as to prevent squeezing. However, when the pile warp is fed into the loom in the subsequent weaving process, the pile warp must be completely demarcated so that each of the 50 pieces of comb-like wrinkles can be inserted independently between 3.79 cm. After drying, when the thread fixed on the belt with glue is peeled off from the belt or when the threads are bonded together with glue, it is difficult to completely scatter them without cutting a single piece. It is a technique. Even if it is intended to handle the yarn by providing a heel before drying, the yarn is stained in various colors by printing, so that the heel becomes dirty and the subsequent yarn is contaminated.
[0017]
Furthermore, according to flat screen printing, print glue accumulates between pile warp yarns, and these print glues are not absorbed by the yarn, contaminating the back side of the subsequent screen, It will be contaminated. Thus, it is very difficult to print a sheet-like yarn using a flat screen printing machine.
[0018]
In view of the above, an object of the present invention is to provide a method for dyeing a woven fabric in which the front and back patterns do not deviate.
[0019]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is characterized in that warp yarn wound around the same beam is separated into a front yarn and a back yarn into a sheet shape, dyed, and then wound around the same completed beam. This is a method for dyeing fabrics. By winding the front yarn and the back yarn wound around the same beam around the same completed beam, the yarn is wound under the same atmosphere such as temperature and humidity, and the tension of the front yarn and the back yarn between the beams and The moving speed can be kept the same. Therefore, the pattern dyed at the same distance from the finished beam by the front yarn and the back yarn between the beams is wound around the finished beam at the same time, so that the patterns appearing on the front and back sides of the fabric are displaced. Absent.
[0020]
In addition, the warp yarn applied to the creel may be separated into a front yarn and a back yarn in a sheet shape, dyed under the same tension and the same speed, and then wound on the same completed beam. . By making the tension of the front yarn and the back yarn the same, and the speed of movement being the same, the pattern dyed at the same position from the finished beam by the front yarn and the back yarn is wound around the finished beam at the same time. Therefore, there is no deviation between the patterns appearing on the front and back sides of the fabric.
[0021]
As dyeing means, various dyeing methods such as hand-printing (hand screen), auto-screen, rotary screen, roller printing, transfer printing, printer, discharging, anti-dyeing, waxing, pouring, etc. can be taken, It is optimal to use a non-contact type printer in which the header dyes the fabric without contact. In other words, non-contact type ink jet printers and the like do not contact and dye dyes on fabrics, so that there is no fluctuation in warp tension, and there is no sheet on the belt as in flat screen printing machines. There is no need to fix the warp with glue. Therefore, there is no need for an operation process for separating yarn before weaving.
[0022]
Inkjet printers can perform printing while transferring sheet-like warp at a constant speed without repeating sudden braking and sudden start. It will not take. Therefore, the pattern does not shift on the front and back surfaces of the fabric.
[0023]
Further, in the flat screen printing machine, since it is necessary to contact the warp directly by squeezing, the back of the subsequent screen is contaminated by the print paste accumulated between the warps as described above, and the subsequent warp is contaminated. However, if an inkjet printer is used, such a problem does not occur because it is not in contact with the fabric. Note that dyes and pigments can be used as dyeing materials.
[0024]
If the front yarn and the back yarn are pile yarns, the surface of the fabric is hidden by the pile formed by the front yarn, and the back yarn of the fabric is hidden by the pile formed by the back yarn. The pattern dyed on the front yarn can appear only on the surface of the fabric, and the pattern dyed on the back yarn can appear only on the back surface of the fabric.
[0025]
Moreover, if the front yarn and the back yarn are dyed with different patterns, patterns are formed on the front and back surfaces of the fabric, and different patterns can be expressed on the front and back surfaces.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the dyeing process method of a pile fabric is demonstrated as an example of the dyeing process method of the textile fabric of this invention. As shown in FIG. 5, the pile fabric is a woven structure in which the warp yarn and the weft yarn 4 composed of the front pile warp 1, the back pile warp 2 and the ground yarn 3 are orthogonal to each other. It is formed through a process, and is subjected to other processes such as a sizing process or an embroidery process as necessary.
[0027]
As shown in FIGS. 1 and 2, the dyeing method of this pile fabric is obtained by separating the warp of the beam 5a after the warping process into a sheet shape into a front pile warp yarn 1 and a back pile warp yarn 2, and dyeing them respectively. Is applied, and is wound around the same weaving completed beam 5b.
[0028]
That is, the warp of the beam 5a is separated into a front pile warp 1 and a back pile warp 2, and is passed through a ridge 6 to form a sheet. The sheet-like warp yarns 1 and 2 are dyed by the ink jet printer 7 and further dried by a dryer 8 provided on the downstream side, and then wound around the same completed beam 5b.
[0029]
The inkjet printer 7 dyes the front pile warp 1 and the back pile warp 2 arranged in a sheet shape with the same pattern as the pattern expressed on the finished pile fabric surface. At this time, the dyeing of the sheet-like front pile warp 1 and back pile warp 2 is carried out so that the opposing patterns are applied on the front and back surfaces of the pile fabric at the same distance to the completed beam 5b. In addition, since the pattern of a textile surface shrinks and warps by forming a pile, it is preferable to dye | stain the adjusted pattern on the front pile warp yarn 1 in consideration of the ratio of the distortion. Although the ink jet printer 7 is used as the dyeing means, other dyeing means may be used.
[0030]
In addition, although the sheet-like front pile warp 1 and the back pile warp 2 are arranged up and down, as shown in FIG. 3, they may be arranged side by side. At this time, both may be dyed at the same time with one ink jet printer.
[0031]
The completed beam 5b on which the front pile warp 1 and the back pile warp 2 that have undergone the above dyeing process are wound is then subjected to a weaving process. The weaving process is a process of forming a woven structure, and is performed using a loom (not shown). The front pile warp 1 and the back pile warp 2 wound on the completed beam 5b are set on the loom as warped in the warping process, and the ground yarn 3 and the weft 4 are also set on the loom. And the pile weave structure which consists of the front pile warp 1, the back pile warp 2, the ground yarn 3, and the weft 4 is formed by the basic operation of the opening movement, the weft insertion movement, and the hammering movement of the loom.
[0032]
According to the above configuration, when the same beam 5a is wound back to the same completed beam 5b, the front pile warp yarn 1 and the back pile warp yarn 2 between the beams 5a, 5b can be maintained at a constant tension. Since it can be drawn out in the form of a sheet under the same moving speed, if dyeing is performed between the beams 5a and 5b by the ink jet printer 7, it is wound around the completed beam 5b at the same time, and the front pile warp 1 and the back pile warp The pattern dyed in 2 does not shift. Therefore, the pattern expressed on the front and back surfaces of the pile fabric can be prevented from shifting.
[0033]
Then, the front pile warp 1 and the back pile warp 2 wound and dyed around the completed beam 5b are woven while maintaining their arrangement, spacing and tension, so that the sheet-like front pile warp 1 and back pile warp 2 are The dyed pattern appears on the front and back of the fabric without shifting. Further, as shown in FIG. 6, the portion of the front pile warp 1 that passes through the back side of the weft 4 is hidden by the pile of the back pile warp 2, so that the color of the front pile warp 1 does not easily echo on the back surface. On the contrary, the portion of the back pile warp 2 that passes through the front side of the weft 4 is hidden by the pile of the front pile warp 1, so that the color of the back pile warp 2 does not easily echo on the front surface. Further, unlike the case where a pattern is expressed using dyed yarn, weaving is easy because weaving can be performed without worrying about the arrangement of the yarn. At this time, if the front pile warp 1 and the back pile warp 2 are dyed with different patterns, different patterns can be expressed on the front and back surfaces.
[0034]
In addition, this invention is not limited to the said embodiment, Of course, many corrections and changes can be added to the said embodiment within the scope of the present invention. For example, in the above embodiment, dyeing is performed when the warped beam 7 is rewound around the completed beam 5b. However, as shown in FIG. 4, dyeing may be performed during the warping process. That is, the warp yarn applied to the creel is separated into a front yarn and a back yarn in a sheet shape, dyed under the condition that both are adjusted to the same tension and the same speed, and then wound on the same completed beam.
[0035]
The warping step is a step of correcting the necessary number of warps, appropriately adjusting the interval, length, tension, etc. during weaving in the weaving step, arranging them in a sheet shape, and winding them up on a finished beam for weaving. First, as shown in FIG. 4, for each of the front pile warp 1 and the back pile warp 2, the necessary number of cheeses or cones 9 are placed on the creel 10 (frame for setting a large amount of cheese and the like 8). Pull the yarn into two sheets. One sheet-like yarn is the front pile warp 1 and the other sheet-like yarn is the back pile warp 2. At this time, the two sheets 1 and 2 are pulled out while measuring a constant length under a constant yarn interval and a constant tension, and the yarn interval is adjusted by the rod 6. Then, the sheet-like front pile warp 1 and back pile warp 2 are wound around the same completed beam 7. As for the ground yarn 3, the yarn from the cheese or corn 9 is warped in the warping process and wound around the beam.
[0036]
The process of dyeing the warps 1 and 2 is provided in the middle of the warping process. That is, the front pile warp yarn 1 and the back pile warp yarn 2 that are pulled out from the cheese or cone 8 under a constant yarn interval and constant tension and are wound around the finished beam 7 are arranged in a sheet shape. Above, an ink jet printer 7 as a dyeing means is provided, and a dryer 8 is provided downstream of the yarn flow.
[0037]
According to this configuration, as described above, the front pile warp 1 and the back pile warp 2 are dyed under the same tension and the same speed and wound on the same finished beam. There is no need to shift the pattern on the back side.
[0038]
Moreover, the dyeing | staining processing method of this textile fabric is not limited to a pile textile fabric, The textile fabric which does not form a pile may be sufficient.
[0039]
【The invention's effect】
As is clear from the above description, according to the present invention, the front pile warp and the back pile warp wound around the same beam are separated and drawn into a sheet shape, and the same pattern as that desired to be expressed on the fabric surface is obtained. After being dyed, it is wound on the same finished beam. Since the tension and moving speed of the front pile warp and the back pile warp between the beams can be kept the same, the pattern of the front pile warp and the pattern of the back pile warp do not shift. Therefore, the pattern expressed on the front and back surfaces of the pile fabric can be prevented from shifting.
[Brief description of the drawings]
FIG. 1 is a diagram showing a dyeing process of the present embodiment. FIG. 2 is a schematic view thereof. FIG. 3 is a diagram showing a dyeing process of another embodiment. FIG. 4 is a diagram showing a dyeing process of another embodiment. 5] Cross-sectional view of pile woven fabric [Fig. 6] Perspective view of pile woven fabric [Fig. 7] Schematic configuration diagram of conventional dyeing process [Fig. 8] (1) Conventional pile woven fabric (a) ) A plan view of the front surface, (b) a plan view of the back surface (2) a conventional pile fabric in which the pattern of the front and back surfaces has shifted (a) a plan view of the front surface, (b) the Plan view of the back side (3) Conventional pile fabric with a pattern deviation between the front and back sides (a) Plan view of its front side, (b) Plan view of its back side [Explanation of symbols]
1 Front pile warp 2 Back pile warp 3 Ground yarn 4 Weft 5b Finished beam 7 Inkjet printer 8 Dryer

Claims (4)

The warp wound on the same beam is separated into a sheet and Table pile warps and back pile warps, it was subjected to dyeing, the same finished pile fabric, characterized in that for winding the beam warp dyeing Processing method. The warp yarns are subjected to a creel was separated into a sheet and Table pile warps and back pile warps, after dyed under the same tension and the same speed, characterized in that winding on the same finished beam A method for dyeing warp of a pile fabric. 3. The method for dyeing warp of a pile woven fabric according to claim 1 or 2, wherein the dyeing means is an inkjet printer in which a header dyes the woven fabric in a non-contact manner. The staining Table pile warps and dyeing method of the pile fabric warp according to any one of claims 1 to 3, different picture has been subjected respectively to the back pile warps.

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