JPS59223357A - Supply of spun yarn to sizing machine - 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 method for feeding one spun yarn into a sizing machine.

In recent years, methods have been developed in which fiber bundles containing staple fibers are drafted and false-twisted, or tow or filament yarns are cut and made into yarn either as is or after being drafted and then false-twisted to make yarn. Research has been conducted on the effects of this phenomenon (Special Publication No. 39139/1983).

This yarn is called a bound spun yarn and has a structure consisting of a single core fiber and bound fibers that are swirled and bound around the single core fiber. However, when we investigated the use of this bundled spun yarn as a warp for threading KQ l'4 in the same way as conventional ring spun yarn, an unexpected fact was discovered. That is, if this bundled spun yarn is supplied to a sizing machine under the same conditions as before and used as the warp of a loom, problems such as neps and yarn breakage occur.

The occurrence of such troubles lowers the quality of the fabric and lowers the efficiency of the milling process.

An object of the present invention is to provide a method for supplying bound spun yarn to a sizing machine that does not cause any yarn breakage or neps when weaving on a loom using bound spun yarn as warp yarns, and does not reduce the quality of the fabric. purpose.

To this end, the present invention has the following configuration. That is, the present invention provides a method of supplying the bound spun yarn to the sizing machine by using the method in a direction opposite to the winding direction of the bound spun yarn when supplying the bound spun yarn to the sizing machine for sizing. This is a method for supplying spun yarn to a sizing machine, which is characterized by the following.

The present invention will be explained in detail below with reference to the drawings. As a result of extensive research, this has become clear that the orientation of the bound spun yarn has a significant impact on the operability and quality in subsequent processes. Here, the directionality of the bound spun yarn refers to the relationship between the feeding direction of the bound spun yarn to the sizing machine and the winding direction of the bound spun yarn in the spinning machine. The bound spun yarn must be fed to the sizing machine in a direction opposite to the winding direction of the bound spun yarn. This is considered to be due to the following phenomenon. That is, in FIG. 1, a fiber bundle S is supplied to one front roller I, exits one front roller I, and is subjected to a false twisting action at a point 2 to be formed into a bound spun yarn. Here, when forming the bundled spun yarn, the bundled fibers 3 are subjected to a heating effect with a heating efficiency different from that of the core fiber bundle 4 during heating during false twisting, and the core fiber bundle 4 is subjected to a heating effect that is different from that of the core fiber bundle 4 by the subsequent untwisting action. It is thought that it wraps around. However, the opposite side (B
The bundled fibers in the direction) are relatively strongly restrained by the frictional force with the core fiber bundle, the gripping force of the 70 controller 1, etc. On the other hand, on the spinning take-up side (input direction), although the binding fibers are relatively free, there is a lot of fluff at the tips of the binding fibers, and the winding near the tips of the binding fibers is loose, and the binding fibers are in a relatively free state. The fact that the core fiber bundle is bound tightly by the subsequent bundled fibers on the rear end side of the fibers also promotes the directional tendency of the bundled fibers on the winding side of one spin to be relatively loosely wound. Therefore, 1. When feeding such directional yarn to a sizing machine, if the bundled spun yarn is used in the winding direction, the bundled fibers will be skewed by the thread guide of the sizing machine, etc.
The state will be as shown in FIG. As a result, it becomes fluffy or nappy, and a lot of glue adheres to this area and solidifies as it dries, causing the solidified nappy to get caught in the gluing process and the subsequent process, causing the thread to become thread-like. Problems such as breakage and skipping of yarns occur, and if the fabric is woven as is, the quality of the fabric will be impaired.

However, if the bound spun yarn is used in the direction opposite to the winding direction of the yarn as in the present invention, it will not be biased by a guide or the like as shown in FIG.

Furthermore, the binding of the core fiber bundle does not become partially loose due to the unevenness of the bundled fibers, and the yarn strength in these areas does not decrease and yarn breakage does not occur. As mentioned above, the winding direction of the bound spun yarn in the present invention refers to the direction in which the yarn moves from the false twisting device to the winding device in the spinning machine. Of ``use in the opposite direction to the winding direction'' - ``Use the spun bundled yarn as it is after spinning'', that is, pull out the bundled spun yarn from the spun yarn as it is and apply it to the sizing machine. It is most preferable to wind the bundled spun yarn back even number of times, as it is most preferable because there is no unwinding and can make the most of the cheese removal effect of the bound spun yarn.

In either case, an increase in unwinding has a negative effect on the binding fibers. Among the even number of turns, it is preferable to turn back two times because it has less negative effect on the bundled fibers.

Next, the bound spun yarn used in the present invention refers to a fiber bundle containing at least stable fibers, that is, a fiber bundle made of 100% stable fibers, and a composite fiber bundle consisting of stable fibers and filaments that is formed by spinning at least one fluid swirl. It refers to something that is configured to maintain its yarn shape by a flow or at least one fluid entangling flow, and it refers to something that has been subjected to appropriate processing, such as heat treatment, if necessary. Examples of fiber materials include polyester fibers, polyamide fibers, polyacrylonitrile fibers, composite fibers such as polybutylene terephthalate m-fibers, semi-synthetic fibers, regenerated fibers, natural fibers, etc. alone or in combination. In addition, materials having different melting points, materials having different cross-sectional shapes, materials having different reliability characteristics, materials having the same fiber length, and materials having different fiber lengths may be appropriately combined.

In addition, as the gluing machine, various commonly used press gluing machines such as beam slasher 1 warping slasher, 1
Examples include this sizing machine (po-guri-zuki 10-ra-guri-zuki). The bound spun yarn that has been subjected to the sizing treatment is woven into a loom such as a shuttleless loom (air jet loom 1) with or without warping.
(water jet loom, etc.), shuttled looms, etc., as warp threads, or knitting machines as needed. In addition, the bundled spun yarn treated with 1wJ can be used for various purposes depending on its properties, especially for use as warp threads of looms. It is preferable if

As described above, according to the present invention, the binding fibers are fed to the sizing machine with the aim of preventing fluffing and shifting, so that in the sizing machine, the binding spun yarn gets tangled or gets caught in the guide, resulting in yarn breakage. In addition, the variation in tension between each bound spun yarn is reduced, which does not cause yarn breakage in the subsequent process, and there are almost no adhesive spots of glue, and as a result, there are no nep-like parts. Thread breakage and skipping in the post-process are significantly reduced, the quality of knitted fabrics is improved, and one more thing.
Density unevenness caused by unevenness due to abrasion of the bundled fibers does not occur, and variations in yarn strength are also reduced, which has the remarkable effect of preventing yarn breakage in the sizing machine and subsequent processes. .

Example A stable fiber bundle of 1.4 denier x 38 mm cut (equal length) of ordinary polyester fiber was used to create a
(English style cotton count) bound spun yarn was manufactured.

Next, the bound spun yarn of spun Agari Cheese was rewound twice and pasted with a roller glue + I machine, but no yarn breakage occurred during the pasting process, and the appearance of the resulting pasted yarn was excellent. . Ring spun yarn 6 produced by using this sized yarn as the warp of a shirttle loom after warping and using the staple fiber bundle as the weft.
When a plain woven fabric was woven using 0'B, the warp breakage on the loom was very small at 0.2 threads/machine/hour, and the quality of the obtained fabric was good with almost no fuzz or neps. Met.

In addition, for comparison, 1 piece of bound spun yarn from Aga Richies was prepared.
When I tried to glue the thread with a sizing machine after winding it up, the thread broke frequently and the slugged thread had a lot of neps and fluff, making it unusable.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an outline of the apparatus for producing bundled spun yarn, FIG. 2 is a schematic side view showing the state of the bundled spun yarn when it is pulled out in the spinning and winding direction, and FIG. The figure is a schematic side view showing the state of the bound spun yarn when the bound spun yarn is pulled out in a direction opposite to the winding direction. S...Fiber bundle 3...Bundled fiber 4...Core fiber bundle 5...Bundled spun yarn Patent applicant Toyobo Co., Ltd. Procedural amendment (method) 1 Case description 1988 Patent Application No. No. 96552 No. 2 Name of the invention Spun yarn sizing machine supply method & Person making the amendment Relationship to the case Patent applicant address 2-2-8 Tung, Dojima Ko 2-chome, Kita-ku, Osaka Date of amendment order August 10, 1982 Hiyo 1, 2, 3, et al.

Claims (1)

[Scope of Claims] L: When supplying bound spun yarn to one gluing machine for sizing, supplying the bound spun yarn to the sizing machine by using the bound spun yarn in a direction opposite to the spinning winding direction of the bound spun yarn. A method for supplying spun yarn to a sizing machine, characterized by: 2. The method for supplying spun yarn to a sizing machine according to claim 1, which uses the spun cheese of the bundled spun yarn as it is. 3. The method for supplying spun yarn to a sizing machine according to claim 1, which uses cheese obtained by turning the bundled spun yarn an even number of times.