JPH0274639A - Method and device for preparing - Google Patents

Abstract

PURPOSE:To prevent the generation of the breakage of warps caused by ramie blended therein on the weaving thereof to provided a high quality woven fabric by successively sizing the ramie-blended warps, brushing the sized warps, dividing the brushed warps, drying the divided warps with hot air and subsequently drying the warps with cylinders. CONSTITUTION:Ramie-blended warps 2 for ramie-blended woven fabrics are sized with a sizing box 1, brushed with a brushing roll 11, divided with dividing rods 3 and 4, dried with a hot air and subsequently dried with cylinders.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for preparing hemp blend warp yarns for obtaining eaves textiles, and an apparatus used therefor.

[Conventional technology]

The eaves fabric, which is obtained by mixing wool and linen thread, has a cool texture and is widely used as a material for outer clothing such as suits. When manufacturing such eaves textiles, the warp threads are sized and warped using, for example, a device as shown in FIG. In the figure, 1 is the size box, warp 2
Apply glue to the paper and squeeze the glue. 3.4 is a dividing rod, and thread separation is performed between these two rods. 5 is a hot air drying chamber, and the warp yarns are dried by about 20% of the moisture content by passing through the hot air drying chamber. Reference numerals 6, 7, 8 and 9 are drying cylinders, and the remaining moisture in the warp threads is dried and removed by passing between these cylinders. The dried warp threads are then wound around a warping beam (not shown). The warp yarns prepared in this way are passed through a loom and the weft yarns are woven into the fabric to obtain the eaves fabric.

[Problem that the invention seeks to solve]

However, as shown in FIG. 7, the hemp threads 10 are partially arranged in the warp threads, and therefore various troubles are likely to occur due to the quality of the hemp threads 10 themselves. In other words, hemp yarn 10 has a lot of uneven 9-knot yarns and tends to fuzz, so
The threads tend to get tangled with each other, and thread breakage is likely to occur during weaving or weaving after gluing. In addition, a large amount of sizing agent adheres to the knotted portions of the hemp yarn and the above-mentioned tangled portions, resulting in uneven adhesion of the sizing agent, which is likely to cause trouble.
Although this is not a problem due to this problem, conventional hot air drying chambers have poor thermal efficiency and cannot dry the warp yarns all at once. In other words, the hot air drying chamber can only dry about 20% at most, and complete drying cannot be achieved until the subsequent drying cylinder 6.
There are whales on 7, 8 and 9. However, when drying to about 20%, the sizing agent attached to the warp threads is quite wet, and if the warp threads are directly brought into close contact with the heated drying cylinder 6 in this state,
The sizing agent adheres to the drying cylinder surface and the warp threads stick to it, and the warp threads are forced to run while being forcibly peeled off, causing severe damage to the warp surface.

The present invention was made in view of the above circumstances, and provides an excellent warp preparation method that eliminates thread breakage caused by hemp threads and does not damage the warp threads due to drying with a drying cylinder, and an apparatus used therefor. is its purpose.

[Means for solving problems]

In order to achieve the above object, the present invention includes a sizing process of sizing hemp blend warp yarns for linen blend fabrics, and a leading side side-setting process in which the warp yarns after sizing are pasted through a dividing rod. The method for preparing linen blend warp yarns includes a drying step, a hot air drying step, and a cylinder drying step. Drying rate 30%
The first gist is the above-mentioned hemp blend warp preparation method, which includes a sizing means for sizing the hemp blend warp yarns for a hemp blend fabric, and a warp running surface after sizing using brush bristles planted on the surface. A dividing rod that presses the warp yarns after passing through the brushing rolls, a dividing rod that applies the warp yarns after passing through the brushing rolls, a hot air drying chamber that dries the warp yarns that have been dried with the hot air, and a dividing rod that applies the warp yarns directly after the hot air drying. The second gist is a linen blend warp preparation device that includes at least one drying cylinder for winding and drying.

[Effect]

In other words, the present inventors conducted a series of studies on how to divide the hemp yarn portion on the front side of the dividing rod in the preparation process of hemp mixed warp yarn. It was discovered that by providing a brushing roll and pressing the warp running surface with this roll, the fuzz on the surface of the hemp yarn is laid down in one direction by the brush, improving the tip side.Also, it was found that the above-mentioned improvement in the tip side was not enough. Not enough,
Since it is not possible to obtain eaves textiles of desirable quality unless the thermal damage caused by the drying cylinder is eliminated, further research was conducted on this issue. As a result, if we take measures such as reducing the internal volume of the hot air drying chamber to increase the drying rate of the warp yarns by hot air drying to 30% or more, they will not be thermally damaged by the drying cylinder and will maintain good quality. The inventors have discovered that something can be obtained and have arrived at the present invention.

Next, the present invention will be explained in detail based on examples.

〔Example〕

FIG. 1 shows a linen blend warp preparation device used in one embodiment of the present invention. In this hemp blend warp yarn preparation device, a brushing roll 11 is provided between a size box 1 and a dividing rod 3. As shown in FIG. 2, this brushing roll 11 has nylon brush bristles 11a planted uniformly in a direction perpendicular to the roll surface. The brushing roll 11 is configured to press the ends of the brush bristles 11a against the warp running surface after sizing. Therefore, if the warp is run in this state and the brushing roll 11 is rotated forward (rotation in a direction similar to the warp running direction) at a speed slower than the running speed,
The tips of the brush bristles 11a act to comb the surface of the warp threads, as shown in FIG. Due to this action, the hemp thread 10 changes from the structure shown in FIG. 4(a) to the structure shown in FIG. 4(b).
The structure shown in is formed, and the fluff is arranged in one direction, and the distortion of the entire system is also corrected.

In addition, the hot air drying chamber 5 of this hemp blend warp yarn preparation device is 1/3 the height (and 1/3 the internal volume) compared to the conventional one (see Figure 6).
3). Therefore, this hot air drying chamber 5 has superior thermal efficiency compared to conventional ones, and can dry the warp threads much more efficiently than conventional ones using the same heat source as conventional ones. By the way, by passing through this hot air drying chamber 5, the moisture content of the warp yarns can be dried by 30 to 40%.

The other parts are the same as those in FIG. 6, and the same parts are given the same numbers.

Using the hemp blend warp yarn preparation device described above, warp yarns can be prepared, for example, in the following manner. That is, first, a glue to be supplied to the size box 1 is prepared.

As the sizing agent, it is preferable to use a poval-based sizing agent with excellent thread handling properties in combination with a smoothing oil agent. Examples of the poval-based adhesive include commercially available Elvanol T25 (manufactured by DuPont) and PVA-117 (manufactured by Kuraray), and examples of the smoothing oil include commercially available Rogel P-80 (manufactured by Heian Yushi Chemical Co., Ltd.). (manufactured by Yushiro Chemical Industry Co., Ltd.) and Tsuruvil wax (manufactured by Yushiro Chemical Industry Co., Ltd.). Further, it is preferable that the concentration of the mixed sizing agent, which is a mixture of the above-mentioned sizing agent and oil agent, is set to about 6% by weight.

Then, the hemp-mixed warp yarns as shown in FIG. 7 are applied to the above-mentioned apparatus, and the warp yarns are prepared in the same manner as normal sizing and warping.

In the warp preparation method described above, it is preferable that the amount of glue applied to the warp is set so that the weight of the glue after drying is about 6% by weight. Therefore, it is desirable to adjust the gluing conditions so as to achieve the above-mentioned adhesion amount.

Further, in the warp preparation method described above, the speed of the brushing roll 11 is preferably set so that the peripheral speed is about 1/4 to 115 of the warp speed. By providing a difference between the yarn speed and the circumferential speed of the brushing roll 11 in this way, the effect of combing the warp yarns by the brush bristles 11a of the brushing roll 11 can be enhanced. However, depending on the type of warp, the speed of the warp, etc., the rotation direction of the brushing roll 11 may be set to rotate in the opposite direction to the warp running direction. Alternatively, instead of the brushing roll 11, a flat brush 30 as shown in FIG. 5 may be fixedly arranged.

Therefore, according to the warp yarn preparation method, the warp yarns are combed by the brushing roll 11 before the yarns are separated by the dividing rods 3 and 4, in order to smooth out the fuzz on the yarn surface by laying it in one direction. There is no entanglement, and thread breakage during the thread handling process and subsequent weaving process is eliminated. In addition, since the hot air drying chamber 5 is made small (to improve thermal efficiency), the drying rate in the hot air drying chamber can be significantly increased by more than 30%, and the paste when passing through the drying cylinder 6.7, 8°9. There is no sticking and damage to the warp threads is reduced.These effects work together, even with hemp blend warp threads.
Warping and weaving can be performed smoothly without any trouble.

In addition, when we actually prepared the warp threads as described above using the device shown in Figure 1, the occurrence of yarn breakage during weaving was reduced to 1/3 of that when using the conventional device (the one shown in Figure 6). It decreased to below.

〔Effect of the invention〕

As described above, according to the present invention, since the warp threads are brushed, the hemp thread becomes smooth, and thread breakage in the thread handling process and the subsequent weaving process is almost eliminated.

Furthermore, since the warp yarns are dried by 30% or more by hot air drying, thermal damage caused by cylinder drying is reduced, resulting in better weaving. Therefore, the quality of the obtained textile product is also superior to that of conventional products.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing one embodiment of the warp preparation device used in the present invention, FIG. 2 is a perspective view showing a brushing roll used in the above embodiment, and FIG. 3 is an explanatory diagram illustrating its operation.
Fig. 4(a) and Fig. 4(b) are explanatory diagrams for explaining the effect of the brushing roll on the hemp yarn, Fig. 5 is a perspective view showing a modified example of the brushing roll, and Fig. 6 is a conventional warp preparation. FIG. 7 is an explanatory diagram showing the configuration of the apparatus and the aspect of linen mixed warp yarns. 1... Size box 2... Warp threads 3, 4...
Dividing rod 5...Hot air drying chamber 6,7,
8゜9...Drying cylinder 10...Hemp thread 11...
・Brushing roll

Claims (3)

[Claims] (1) A sizing step of sizing the hemp blend warp yarns for the hemp blend fabric;
In a linen blend warp preparation method that includes a yarn handling process in which the warp yarns after sizing are passed through a dividing rod to separate the yarns, a hot air drying process, and a cylinder drying process, the warp yarns before passing through the dividing rod are brushed with brush hairs. A method for preparing linen blend warp yarns, characterized by providing a brushing step in which the warp yarns are brought into contact with each other and passing through the warp yarns, and in which the drying rate of the warp yarns in the hot air drying step is set to 30% or more. (2) a sizing means for sizing the hemp blend warp yarns for the hemp blend fabric;
A brushing roll that presses the warp running surface after sizing with brush bristles planted on the surface, a dividing rod that separates the warp after passing through the brushing roll, and a drying of the warp after the separation. A hot air drying room and
A hemp blend warp preparation device characterized by comprising at least one drying cylinder for directly winding and drying the warp after hot air drying. (3) The brushing roll rotates in the normal direction with respect to the warp running direction, and its circumferential speed is 1/4 to 1/5 of the warp yarn speed.
The linen blend warp preparation device according to claim 2, wherein the speed is set to .