JP3265160B2 - Water jet loom weaving method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid jet loom using an incompressible fluid such as water, and more particularly to a weaving method using a water jet loom.

[0002]

2. Description of the Related Art Conventionally, weaving using a water jet loom has been generally performed. In such a water jet loom, the weft is caused to fly along with the jet water to reliably and stably perform the warp between the vertically opened warps (hereinafter, referred to as a "shutter"), thereby improving the weaving efficiency. Needed above. The improvement of the weaving property becomes more important as the weaving speed increases as in recent years.

In general, it is important to bundle the weft in order to stably and reliably fly the weft together with the jet water. As a method of bundling the weft, for example, in Japanese Patent Application Laid-Open No. 51-15068, before injecting the weft from a water injection nozzle, the weft is subjected to an entanglement treatment or an adhesive is applied, so that the weft is Focusing has been proposed.

However, in such a method, since the entangled portion of the weft and the sizing agent remain in the woven fabric as they are,
There is a problem that the quality of the fabric is deteriorated. Further, since the weft to which the sizing agent has adhered adheres to the inner wall of the water injection nozzle, there is also a problem that the jetting ability of the water injection nozzle is reduced due to this.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention can stably and reliably transfer the weft to the shed even when the weaving speed is increased, An object of the present invention is to provide a weaving method for a water jet loom that does not cause a decrease in the injection performance of an injection nozzle.

[0006]

According to the present invention, there is provided a weaving method using a water jet loom.
While associated with weft injected water from the water jet nozzles, when inserted between the warp group having an open weft yarn, the
Water jet nozzle, and a weft provided on the water jet nozzle side
Set the sizing agent application position at the cloth fell position between the cutter
The weft that moves to the cloth fell position by beating is used as a sizing agent.
A weaving method using a water jet loom, wherein the weaving method is performed by applying a sizing agent to the weft .

[0007]

The sizing agent is not particularly limited, but is preferably a water-soluble polymer having a hydrophilic group in the molecule such as polyethylene oxide or a sizing agent such as acrylic or polyvinyl alcohol. .
The property of the sizing agent may be any of a liquid, a powder, and a gel. However, in consideration of the adhesion of the sizing agent to the weft, the sizing agent is preferably in a liquid state. Further, as for the sizing agent, an agent commonly used in a water jet loom is preferable in consideration of wastewater treatment, and in this sense, a sizing agent that facilitates the above-described wastewater treatment is preferable.

By doing so, it is possible to increase the weight of the weft thread inserted into the shed while converging the end thereof, and thereby, when the yarn end flies through the shed, its inertia is increased. The speed (inertial force) can be increased, and as a result, the weft can stably fly through the shed.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a weaving method according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a schematic plan view showing a relevant main portion of a water jet loom necessary for explaining the weaving method of the present invention. In the figure, 1 is a weft, 2 is a water jet nozzle, 3 is a weft cutter, 4 is a reed, and 5 is a sizing agent applying device.

In the present invention, it is important that the sizing agent applying device (5) is installed at the cloth fell position between the water jet nozzle (2) and the cutter (3). The meaning of installing the sizing agent applying device (5) at such a position means that the sizing agent applying device (5) is removed from the flight path on which the weft (1) flies, and the weft (1) travels. The goal is to avoid obstacles.

Another important point is that the movement of the weft (1) to the cloth fell position by the beating movement is skillfully used. That is, when the weft (1) moves to the weaving position, the weft is brought into contact with the sizing agent supplied from the sizing agent applying device (5) installed at the weaving position, and the sizing agent is automatically attached to the weft. Is to be provided.

The device for applying the sizing agent to the weft is not particularly limited. For example, a system for spraying the sizing agent onto the weft, a rotating roller provided in a container containing the sizing agent, A film made of a sizing agent is formed thereon, and the film is brought into contact with the weft (the method indicated by reference numeral 5 in FIG. 1 of the present invention is this method), or an oil supply hole is provided in the yarn path guide. A method of supplying a fixed amount of the oil agent to the supply hole to form a sizing agent reservoir in the yarn path guide and introducing a weft into the sizing agent reservoir can be adopted.

In FIG. 1, weaving by a water jet loom involves weft (1) accompanying jet water jetted from a water jet nozzle (2), and flying the weft (1) between sheds. This is performed by gripping the weft (1) with a catch cord (not shown) provided facing the water injection nozzle (2). The weft (1) held by the catch cord in this manner is subsequently beaten by the reed (4), and is woven into the warp. As described above, the sizing agent is applied to the weft (1) moving to the weaving position during the beating.

Then, the weft inserted into the shed is completed by cutting both ends of the weft inserted between the warps by cutters provided on the water injection nozzle side and the catch cord side.

In the water jet loom in which the weft is inserted as described above, it has been repeatedly described that it is important that the weft fly to the shed stably. The significance and operation will be specifically described with reference to FIG.

If the weft does not fly in the shed stably, the weft comes into contact with the warp, thereby causing the weft to become entangled with the warp. When such a phenomenon occurs, stable weaving is not performed, and weaving is interrupted. Further, if the weft does not fly stably, a catch error of the weft by the catch cord is caused, which also hinders stable weaving.

In the present invention, in order to prevent the above-mentioned unstable flight of the weft yarn and to promote the stable flight of the weft yarn, the position immediately after the weft yarn (1) exits the water jet nozzle (2) is used. The sizing agent is applied to the weft yarn (1) by the sizing agent applying device (5). By doing so, the weight of the leading end of the flying weft (1) can be increased, and as a result, the inertia force of the flying weft (1) can be increased, and finally the weft (1) ) Can improve the straightness (stable flight).

Moreover, since the sizing agent is applied only to the leading end of the weft, if the portion of the catch cord to which the sizing agent is adhered is cut by the cutter provided on the catch cord side, weaving is performed. The subsequent sizing agent does not remain in the fabric, and the quality of the fabric can be maintained.

Finally, just in case, when the weft (1) is caused to fly, the jet water is jetted from the water jet nozzle (5), and the leading end of the weft (1) is cut in advance by the cutter (3). ) Is directed to the jetting direction, and then the main jet water is jetted, and the wefts fly with the jet water.

[0022]

EXAMPLE A water jet loom manufactured by Nissan Texis Corp. was used as a loom, and its rotation speed was 750 rpm as a representative value. Taffeta was woven using a 75 de / 36 fil non-twisted polyester yarn as the weft to be run and a 50 de / 24 fil polyester yarn as the warp. At this time,
The sizing agent is 10,000 PPM of polyethylene oxide.
Using the aqueous solution, the sizing agent was brought into contact with the weft moved at the time of beating at the cloth fell position between the water jet nozzle and the cutter on the water jet nozzle side. At this time, the weaving test was performed by variously changing the amount of the sizing agent attached. Further, as a comparative example, a fabric woven under the same conditions as in the example except that the sizing agent was not applied to the weft was tested in order to compare the effect with the example.

As a result, the weaving method of the present invention in which the sizing agent was adhered to the weft was clearly higher in weaving performance (number of stops per day per loom) than the comparative example in which the sizing agent was not adhered. Was excellent.

[0024]

As described above, according to the method of the present invention, the weft can be stably and reliably fly to the shed, and the weaving speed can be reduced without deteriorating the quality of the woven fabric. This has an extremely remarkable effect that the speed can be increased.

[Brief description of the drawings]

FIG. 1 is an explanatory view (plan view) of a main part for describing a weaving method of the present invention.

[Explanation of symbols]

 Reference Signs List 1 weft 2 water jet nozzle 3 weft cutter 4 reed 5 sizing agent applying device

Claims (2)

(57) [Claims] In a weaving method using a water jet loom, when the weft is inserted between the opened warp groups while accommodating the weft with the water jetted from the water jet nozzle, the water jet nozzle includes: Provided on the nozzle side on the water injection side
Position of the sizing agent at the cloth fell position between the set weft cutters
The weft that moves to the cloth fell position by beating.
A weaving method using a water jet loom, wherein the weft yarn is provided with a sizing agent by contacting the sizing agent with the sizing agent . 2. The sizing agent has a hydrophilic group in the molecule.
2. The warp according to claim 1, which is a water-soluble polymer or a paste.
Weaving method with a tag jet room .