JPS58203140A - Fabric woven by freely changing warp yarn tensile force and production thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fabric woven by freely changing the warp tension, and a method for producing the fabric.

Traditionally, woven fabrics with different warp tensions are called sakkana. When woven by arranging tensioned warp threads and loosely tensioned warp threads in a striped pattern, the loosely tensioned warp threads are woven long and create ridges. There are fabrics that are woven and have shriveling on the surface of the fabric, or are woven by arranging one or several warp threads with tension and loose warp threads.

However, in both cases, the warp is warped with a strong tension thread and a weak warp thread, or in other words, two warp beams are used and the amount of warp sent out from one warp beam is increased, so that the warp thread with strong tension and the weak warp thread are warped. It was made as it should be when it was raw.

In this invention, instead of preparing a force difference in advance, the warp yarns are normally warped to have an even tension, and the tension is freely increased or decreased on the loom. An embodiment of the present invention, which aims to obtain a fabric with a tensile strain of 0.
FIG. 1 shows a first embodiment of the invention. First, to explain the warp path in order, warp beam (1)
The warp threads (3) sent out from the back roll (4) pass through the pack tension roll (2) and reach the back roll (4).

The warp (3) usually runs from the back roll (4) to the belt (8)
The presser bar (7) is placed on the warp line.
) is fixed, and a tension increasing/decreasing protruding roll (5) is pivotally supported between the back roll (4) and the presser bar (7).

Therefore, the yarn (3) passes from the back roll (4) over the tension increasing/decreasing protruding roll (5), and then passes through the presser bar (7).
Go under it and go to the belt (8).

At that time, the protruding roll (5) for increasing/decreasing tension is applied to the bottom shaft (1).
5) is applied to the collapsing chain (16) and reduction gear (17).
) through the transmission chino (16) so that it rotates at an appropriate speed. Aiwa, belly band roll (13
) Rotation may be performed by transmitting the rotational force of the shaft.

Warp threads with increased tension (3') and warp threads without (3')
The process is to pass through the belt (8), pass through the reed (9), insert the weft thread with a silatl, etc., and then press the reed to make the fabric (
10).

The fabric (10) passes through the breast roll (11), the guide roll (J2), the belly roll (13), the guide press roll (12'), and then the cloth roll (1).
4).

FIG. 2 shows a second embodiment of the invention. In the first embodiment, the tension was increased or decreased using the tension increasing/decreasing projecting roll (5), but in the second embodiment, the tension was increased or decreased using the dobby (22).

A pull bar (18) is provided between the back roll (4) and the presser bar (7), and the warp threads (3') whose tension is to be increased or decreased are placed on top of it, and the other warp threads (3) are passed underneath. put.

Dobby (22) moves the jack lever (21) according to instructions from the dobby card (23), and the movement passes through the wire lob (19), pulls the pull bar (18), and returns to the original position.

In this way, the warp (3) (3'
) passes through the belt (8) and the reed (9) to become the fabric (10), as in the first embodiment.

FIG. 3 shows a third embodiment of the present invention, in which a dobby (22) is used instead of the pulling rod (18), as in the second embodiment.
Attach the warp threads (3) whose tension you want to increase or decrease to the tension adjustment belt (24).
’), and then tighten the tension increasing/decreasing belt frame (25) through the dobby (
22) to create a tension difference. The subsequent warp path is the same as in the previous example.

In the second and third embodiments, by using a dobby (22),
It is easy to increase the number of pulling rods (18) and belt frames (25) for increasing/decreasing tension, and thus it is possible to increase/decrease the warp tension in a complicated manner.

Figures 4, 5, and 6 show what kind of fabric will be produced by freely selecting the warp threads (3') and freely increasing or decreasing the tension. Illustrated in.

- Figure 4 is an example where the warp (3') is partially concentrated to increase or decrease the tension, and the weft (26) causes a partial density change. Utilizing this, it is possible to create wavy patterns, wind pattern patterns, etc. on the surface of the fabric using areas with dense and coarse weft density.

FIG. 5 shows an example in which the warp (3') tension is increased or decreased over the entire warp, and the weft (26) changes density over its entire width, resulting in a horizontal striped pattern. However, if the proportion of the warp yarns (3') that increase or decrease the tension is uniform over the entire width, such a surface change will occur not only in the entire system but also in about one-fifth of the system.

Figure 6 shows how the weft (
26) at intervals that do not change the density of the warp (
3'), select one or several warp threads (3') to create a tensioned part (3a) and a loose part (3b), and weave them into the fabric surface. This is an example of how the tension strain causes wrinkles.

Needless to say, although the examples shown in Figures 4, 5, and 6 are for lay organizations, it is possible to create any organization.

As is clear from the explanation in Section 9A regarding the above configuration, this invention provides the following excellent effects.

First, in the fabric manufacturing method, it is easy to weave a fabric by freely selecting the warp threads and freely increasing or decreasing the tension.

As a result, complex and elegant patterns such as horizontal stripes, waves, and wind patterns can be obtained on the surface of the fabric due to changes in the density of the weft threads.

In addition, due to the tension strain in the warp threads, bulges occur, which also creates a woven fabric rich in elegance.

In this way, this textile is extremely innovative and full of elegance.
It can be used for dress fabrics and decorative fabrics, and has great commercial value.

[Brief explanation of drawings]

FIG. 1 is a simplified perspective view of a warp path on a loom in a first embodiment of the present invention. FIG. 2 is a simplified perspective view of the second embodiment. FIG. 3 is a simplified perspective view of the third embodiment. FIG. 4 is a plan view of changes in the surface of the fabric. FIG. 5 is a plan view of changes in the surface of the fabric. FIG. 6 is a plan view of the fabric surface and changes. Code (1), warp beam (2), pack tension roll (3), warp thread (3'), warp thread that increases or decreases tension (4), back roll (5), protruding roll for increasing or decreasing tension (6), protrusion (7), presser bar (8), belt (9), reed (10), fabric (11), breast roll (12), guide roll (12'), guide press roll (13), belly band roll (14) , cloth roll (15), bottom shaft (16), transmission chain (17)', reduction gear (18), pulling rod (19), wire rope (20), wire lobe guide roller (21), jack lever (22) , Dobby (23), Dobby card (24), Belt for increasing/decreasing tension (25), Belt frame for increasing/decreasing tension (26), Weft (3a), Tense part of warp woven by increasing/decreasing tension (3b) , the loosened part of the warp threads woven by increasing or decreasing the tension Patent applicant: Osamu Kase

Claims (1)

[Claims] / The warp (3) on the loom is arbitrarily selected before it reaches the belt (8), and the tension can be freely increased or decreased by pulling up or lowering the warp (3'). change. A textile manufacturing method that creates surface changes in the fabric by incorporating uneven density in the weft and tension strain in the warp through weaving. 2. A woven fabric obtained by the woven fabric manufacturing method described in claim 1. 3. A tension increasing/decreasing protruding roll (5), which is optionally provided with protrusions (6) on its cylindrical surface, is pivoted in contact with the warp (3) and rotated. The warp described in claim 1 (
, 3') to freely increase or decrease the tension by raising or lowering the device. A t1 pulling rod (18) is provided on the warp (3), an arbitrarily selected warp (3') is placed on it, and the dobby (2) is placed on top of the warp (3').
2) to raise and lower. By pulling up and lowering the warp threads (3') as described in claim 1,
A device for freely increasing and decreasing tension. An arbitrarily selected warp (
The belt frame (25) for increasing and decreasing the tension is pulled up and lowered by the dobby (22) through the warp (3') as described in claim 1. A device for freely changing the increase or decrease.