JPS5947740B2 - Glue-free weaving method - Google Patents

Description

[Detailed description of the invention] The present invention relates to a method of weaving without glue.

More specifically, the present invention relates to a method of weaving without glue using a single spun yarn made of short fiber bundles.

Conventionally, when weaving using single yarns of spun yarns made of short fiber bundles, it is common to weave after gluing the yarns in the process to improve their convergence, smoothness, fluffing, etc.

However, this gluing process occupies most of the weaving preparation process, and not only does it inevitably complicate the process, but it also increases costs. Usually, processes were simplified and costs were reduced by reducing the amount of glue attached.

Therefore, attention has been paid to the superiority of weaving methods that do not require such gluing processes, and in recent years, research has also been conducted on direct dyeing finishing processes that do not require scouring in terms of dyeing finishing processes. Focusing on the provision of a fabric that would enable this, there was a desire to realize a weaving method without glue.

However, for filament yarns made of long fiber yarns, there are polyester yarns, polyamide yarns, crimped polyester yarns, etc., which are process-rationalized yarns, that is, yarns that do not require gluing. However, with regard to spun yarns made of short fiber bundles, there are problems such as focusing acids and fuzz, and a glue-free weaving method for these yarns has not yet been put into practical use. be.

In view of the above-mentioned points, the present inventors provide a method that enables glue-free weaving using spun yarn single yarn consisting of short fiber bundles by subjecting the yarn to simple and rational treatment. As a result of intensive research aimed at this purpose, we arrived at an inventive weaving method without glue.

The purpose is to:
The yarn is pulled out while maintaining its sheet state, subjected to a burning process, and then wound up on a second beam. Thereafter, a large number of sheets in a plurality of sheets are pulled out from a plurality of second beams. This is achieved by a glueless weaving method in which threads are combined and wound around a loom beam, and the threads pulled out from the loom beam are supplied to a glueless weaving process.

The glueless weaving method of the present invention will be further explained below with reference to the drawings.

FIGS. 1 and 2 schematically show an example of the processing steps from the first beam to the second beam in the glueless weaving method of the present invention.

A large number of single yarns consisting of staple fiber bundles subjected to weaving without glue are aligned and wound around the first beam 1 in the form of a sheet.

A large number of yarns in such a sheet state are passed through a nip roller 2 and then a comb 6 provided to prevent sheet disturbance.

Thereafter, the yarn is subjected to a burning process using a burning hot plate 5 or a burning burner 51 to impart fluff, convergence, and smoothness to the yarn. It passes through a twisted comb 6, guide rollers, etc., and is wound onto the second beam 4.

Thereafter, as shown in FIG. 3, a plurality of such second beams 4 are prepared, and a rewinding machine is used to combine the yarns in the form of a plurality of sheets pulled out from the second winding beams. The yarn is wound around a loom beam 7, and the yarn drawn out from the loom beam is supplied to a glueless weaving process.

The number of threads wound into a sheet in the first beam and the second beam is preferably about several hundred to 1,000.

The method of the present invention burns the sheet using two types of beams (this makes the process significantly simpler than when burning is performed in other processes, and it also allows for control over the burning process). However, this effect cannot be expected if the burning process is performed in another process.

The degree of fluffing can be adjusted by adjusting the temperature of the hot plate or burner, the length of the contact surface, the yarn speed, the tension between the nip rollers 2 and 3, etc.

As a guideline for machiorinote, it is preferable to perform the fluffing treatment so that the number of fuzz of 3 mm or more is 30 strands/m or less, although it varies depending on the yarn type, fabric standard, etc.

The fiber material used in the method of the present invention is preferably a material such as cotton, wool, rayon, polyester, polyacrylic, or polyamide.

This is especially effective for cotton, wool, rayon, etc., because after burning, no fusion is formed due to burning.

In addition, synthetic fibers such as polyester and polyamide fibers are fused during weaving due to excessive tension, ironing with reeds, heddles, etc., and other deposits that adhere to the thread surface due to burning are removed, so the burning conditions must be adjusted appropriately. By adjusting the settings, it is possible to obtain sufficiently excellent glue-free woven products.

Although any yarn count can be used for the present invention, yarn counts of 108 to 50S are particularly effective.

When the yarn count becomes thinner than 508, the yarn strength decreases significantly.
Thread breakage occurs when passing through the burning process.

Furthermore, in the case of a thick yarn count of 08 or less, there are many yarns that can be woven without glue without burning.

There are various methods for forming short fiber bundles into threads, such as ring spinning, open-end spinning, and other innovative spinning methods, but the method of the present invention can be used regardless of the type of these spinning methods. Glue weaving becomes possible.

The method of the present invention described above can easily improve fluffing, convergence,
It can provide smoothness, etc., and has made it possible to weave yarn made of short fiber bundles without glue, which was previously considered difficult, and it can also be treated during the process of rewinding from beam to beam. This method does not complicate the process and is extremely effective industrially.

Examples will be described below.

Example 1 Polyester staple L5dX38mm (45%)
A yarn of 2O8 was spun using a ring spinning machine with a coefficient of 3.2 using cotton (55%).

A sheet of 600 yarns was prepared from the yarn using a rough warping machine, and the sheet was fed to a fluffing device in the manner shown in FIG. 1 and fired on the upper body.

The number of fluffs after firing is 11.2 pieces/m for those over 3 meters.
Met.

The four sheets after fluffing were rewound onto a weaving beam, and then a plain weave with a warp density of 58 threads/in and a weft thread density of 52 threads/in was woven without glue.

Weavability and product customization were obtained using the conventional sizing method using similar yarn (conventional method I), and those obtained by weaving using the same yarn without burning and without glue. Table 1 shows the results of comparison with the conventional method (conventional method ■).

As is clear from Table 1, according to the weaving method without glue of the present invention, it is possible to perform weaving that is as good as or better than the conventional "C" weaving with glue.

Examples 2 to 7 Example 2 is a polyester staple 2dX51mm1
00%, Example 3 is polyester staple 2d
51mm (75%), rayon table 2dX51m
In Examples 4 and 5, 100% cotton was spun using a ring spinning machine.

In addition, Examples 6 to 7 are polyester staples 2dX
51mm (65%), rayon staple 2dX51m
m (35%) were each spun on an open-end spinning machine.

Each of the obtained yarns was subjected to a burning treatment in the process shown in FIG.

The hair burning conditions are as shown in the arrow. (1) Hot plate surface temperature near 00°C to 720'C (2) Draft between nip rollers 2 and 3: 1.02 (3) Winding speed: 150 m/
After that, various types of weaving without glue were carried out using each yarn, and the obtained results are shown in Table 2.

As can be seen from Table 2, weavability (warp thread breakage) was good with 1 to 4 warp threads in each example, and fuzz occurred during weaving.
There was no fluff or anything that would impede weaving.

In addition, there are almost no neps on the fabric surface of both the gray fabric and the product, and the quality is good.

[Brief explanation of the drawing]

Figures 1 and 2 show the first weaving process in the glueless weaving method of the present invention.
FIG. 3 is a process schematic diagram showing an example of a processing process from a plurality of second beams to a second beam, and FIG. 3 is a schematic diagram showing an example of a process for winding a plurality of second beams into a weaving beam. 1°゛...first beam, 2. Total...Nip roller, 4...Second beam, 5...Hot plate for hair burning, 5/...Burner for hair burning, 6...
... Comb, 7 ... Beam for loom.

Claims (1)

[Claims] 1. From the first beam, in which a large number of single yarns consisting of short fiber bundles are aligned and wound into a sheet, the yarns are pulled out while maintaining the sheet state, subjected to a burning treatment, and then directly transferred to the second beam. After that, a large number of yarns in a plurality of sheets pulled out from the plurality of second beam forces 1 are combined and wound around a loom beam, and then pulled out from the loom beam. A method for weaving without glue, characterized in that the yarn is supplied to a weaving process without glue.