JPS5943135A - Composite spun yarn - 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 composite spun yarn consisting of a fine polyester fiber stable and a multifilament yarn or processed yarn, which is uniform, soft, and has sufficient practical performance.

Synthetic spun yarn consisting of stable and multifilament yarns has uniformity and firmness that cannot be compromised by conventional spun yarns consisting only of stable yarns, and also has improved operability in each process.
Although it has the advantage of being excellent in operability, due to the latitude of the stable Toganari MV fiber, it is important to produce fine count yarn. Especially for manufacturing fine count yarn, K11″i,
It is necessary to reduce the aIk (denier) of the constituent fibers of the stable, but in the past, as the wood (denier) becomes smaller, the body and fiber length must also be made smaller to determine the true parallelism of the fibers. However, it was not possible to obtain a yarn with small uniformity unevenness in the longitudinal direction. However, by shortening the fiber length, disadvantages such as an increase in the number of fuzz, a lack of bonding with the filament yarn, an increase in slubs or neps, and the occurrence of pilling are caused, and the resulting yarn is not suitable for practical use. Not good.

The present invention 2+ takes advantage of these circumstances and makes efforts to solve the problems of conventional composite spun yarns, combines the advantages of both stable and filament yarns, and is suitable for fine count yarns.
3) It fully demonstrates its advantages even if it is made of ultra-fine fibers.
The present invention was achieved as a result of extensive efforts to develop a composite spun yarn that exhibits unique softness and does not lose the luster of fibers. In other words, it is an object of the present invention to provide a composite spun yarn consisting of a stable polynisder fiber and a multifilament yarn or a poly-Nysdel fiber, which is uniform, soft, and has practical performance.

For this purpose, the present invention has the following configuration 1. That is, according to the present invention, polynisdel 14i has a fin length of 1.0 denier or less, and a ratio of the average needle fiber length (fin) to the square root of the fin length (denier) of 60 or more.
K'm, Stable 4 Mt Multifilament yarn or processed yarn is a glue blended yarn fed yarn characterized in that the blending rate of the stable polyester fiber is 30% to 70%.

Polynisdel Ji4%, which is commonly used as a base material for continuous multifilament yarns or processed yarns, such as Polynisdel-tei, 1-ya-fi, and nylon-fiber-1, can be used, but considering its versatility, Polynisdel-Ji 4% can be used. The truth is so beautiful.

b m k multifinment yarn! , ni&;111jl
The fineness (denier) of the rlt fiber of the bobbin thread should be thicker than the thickness (denier) of the single fiber of the stable to be made into a composite thread, which is the desired fat attachment! -j4 is possible.

More preferably, it is more than 1 denier and 3 denier or less. Knitted fabric using a single thread of double yarn! When making a single knitted fabric at t''=i, by using a processed yarn and making it into a composite yarn, the torque of the processed yarn and the torque of the interlocking yarn can be equalized, making it a non-torque extracted yarn. 11", which is preferable.

Also, the stable rectangle to be used ^);
denier) is ], 0 denier or more,! l] or less than 0.8 denier.

The reason for this is that it not only exhibits the suppleness, soft feel, and drape characteristics of ultra-fine fibers, but also
This is to ensure the number of klJ fibers in the stable structure during manufacturing and to obtain a composite spun yarn with excellent uniformity. Furthermore, the composite spun yarn using the ultrafine fibers can eliminate the lack of softness (tq), which is a drawback of conventional high-density fabrics, and
It has the great advantage of not requiring texture removal through alkali weight reduction processing.

The average fiber length (denier) and fineness (denier) of the ultra-fine W' fibers are
The ratio of the square root of must be 60 or more and 250 or less.

This is so that billing does not occur even if the fineness (denier) of the single fibers becomes small, and it is similar to that of the original fiber yarn, and has a good texture that is one of the characteristics of composite spun yarn. I don't like being called.

This is because the external fluff on the yarn surface and the internal fluff located inside the yarn are less than necessary.

As long as the physical properties such as the entanglement with the stable and continuous multifilament yarns or processed yarns constituting the silver yarn, the number of fluff, and the uniformity of the yarn are satisfied, , J two F) W? But that's fine.

Particularly when productivity is taken into consideration, a yarn form such as a binding yarn that effectively uses a false twist nozzle is preferable to a ring interspun &j yarn that is actually twisted by a ring traveler. In particular, the yarn obtained according to the yarn structure 41, ie, the island of the binding yarn and the stabilization of the yarn form by the binding fiber, generally tends to be hard, so in the present invention, the yarn of the binding yarn W
By using fAk, the yarn becomes highly versatile. When considering how to exhibit luster as a co-spun yarn, a yarn form with added actual twist of 15≦heating twist and 1≦25 is likely to be desirable.

Here, the heating index refers to s/polyester weaving coefficient - G x twist coefficient (the following formula).

This is the square bar f5 of the composite caking yarn axis and the structure 1 cotton:fiber axis.
This is because by reducing the size of the rabbit, the woven spun yarn is softer than L, and the luster inherent in the weft yarn is better exhibited.

The method for producing the composite spun yarn of the present invention will be explained with reference to FIGS. 1, 2, and 3.

It can be obtained by ordinary polyester manufacturing methods, such as a method of transesterifying dicarboxylic m-ester and glycol followed by polycondensation reaction, or a method of esterifying dicarboxylic acid and glycol followed by polycondensation reaction. The polyester was melt-spun (!stretched to 1. The fineness (denier) of the multifilament yarn and the single fiber was 1.
．． A tow made of polyester filaments of 0 denier or less is produced.

The tow can be made stable by the usual cutting method, and the fiber parallelism is high by the tension cutting method.1. tl-
) A stable sliver with a ratio of the average fiber length (to) to the square root of the single fiber fiber density (denier) of 60 or more was directly produced, and the sliver was hung on the rover with roving 2. Then, as shown in Fig. The continuous multifilament yarn or processed yarn 7 is fed into a treetop spindle, and the continuous multifilament yarn or processed yarn 7 is air-opened at a high voltage % of 8 nl, and is made into a composite yarn by a front roller 5, and the heating index is set to 15 or more.
Effective production can be achieved by limiting the number to 5 or less. In addition, 1 is Shinomaki, 3 is a back roller, 4 is a second roller, 6 is a burn, 9-kei-spun pongee yarn, IO is a guide,
1] is a package, and 12 is a guide.

When the tow is cut and made into a staple, the fineness of the single fiber (
As the denier (denier) becomes smaller, the slippage between the laces becomes worse, and loose toe denier (denier) becomes less likely to cause group breakage. When this sliver breakage occurs, the uniformity of the sliver becomes significantly less than L', and the periodic unevenness becomes noticeable. The spun yarn subjected to Vi cannot be put to practical use. The key to preventing this group breakage is to make the density I9:i in the width direction of the tow as small as possible.

FIG. 2 is a road side view of foil production for producing a binding yarn type of composite spun yarn. The difference from FIG. 1 is that a fluid nozzle 14 is used instead of actual twisting.

Here, 16 is a package and 17 is a winding roller.

3 shows a cross section of the fluid nozzle, 0) is a longitudinal sectional view, and (B) is a cross sectional view taken along the Ro-Ro line in FIG. 3←) in the direction of the arrow. 19 is a thread passage, and 20 is a fluid passage.

As described above, according to the present invention, polyester is made of polyester that does not lose the luster that Takeo itself has, has excellent uniformity, excellent stain resistance, has a firm texture, and is soft.
The remarkable effect is that a product with excellent anti-build properties can be obtained.

Example 1゜1) Stable ordinary polyethylene terephthalate was spun at a temperature of 290
A tow of 100,000 denier (1 degree single fiber forest is 0.4 denier) was produced by spinning, doubling, and drawing at a winding speed of 900 m/win. I pulled it out and got a sliver.

The total draft magnification in the tension cutting device tf was 5.52, and the obtained sliver was cut into li thread (42, +
Mr. S was set at 15 yas.

11) Continuous multifilament yarn ordinary polyethylene terephthalate spinning temperature 290”
Spinning and processing at C1 winding speed of 900I+I/target 11,
A 30 denier 18 filament 1 (1 pattern) multifilament yarn was produced.

The roving 2 is fed to a spinning rod (shown in FIG. 1),
Behind the front roller 5? Tracing t+5it multifilament yarn 7 on shoulder, η1. Open cotton with H-rectangle 1 pole 8;
The drafted braided yarn was superimposed on the front roller 5] to produce a kami-spun yarn of 00'8 (the following formula count). Using this composite spun yarn, 120 pieces/i
++, a flat item was produced with a fineness of 1.05 pieces/■.

Two comparative examples are also shown in Table 1. The method for measuring the physical property values shown in Table 1 is described below.

Measurement method: Measurement was performed using an F-index tester manufactured by Shikishimabo Co., Ltd.

0 Building resistance This is the value after 10 hours of treatment with J Engineering SL 1076 (Method A).

A larger number indicates better anti-pilling properties.

The O uniformity U% and the P work were measured using a U% evenness tester manufactured by Keizoku Kogyo Co., Ltd.

○ Average Fiber Length The average fiber length was measured using a staple-ograph manufactured by Bonai Denki Seisakusho A.

Table 1 0 Resistance to stiffness Using a bonding force tester (manufactured by Maeguchi 1), the number of Iqj of stiffening until the staple group and the continuous multifilament yarn become molecules with each other is determined as the resistance to stiffness. . Load per sample: 50! /, L, the length is 3 cM.

As is clear from Table 1, the N blended lead system according to the present invention has excellent uniformity, has a small number of fuzz, and has excellent resistance to staining, and the resulting fabric has a uniform appearance. It had a good anti-pilling property of grade 4.5, had a soft and firm texture, and was a high-quality, high-grade fabric.

Also, by twisting the sakin spun yarn of the present invention, can you make a single voile thread? l
! When strung and tied, a woven fabric with uniform In- and a crisp feel was obtained, which was most suitable for use as a sari.

Example 2 Example 1. Using the stable and continuous multifilament yarns used in the above, a so-called binding yarn type yarn was manufactured using the equipment Wj shown in FIG. An example of the false twisting fluid nozzle used at that time is shown in FIG. The spinning conditions are as follows.

Air pressure of fluid nozzle...4 Ky/cda Spinning speed-150+a/in Spinning count...so'B (following formula) Good results.

In addition, the single yarn strength and single yarn strength OV F listed in Table 2
i is a value determined using a normal Worcester single yarn tester.

[Brief explanation of the drawing]

Figures 1, 2 and 3 are schematic side views of the apparatus i'i used to obtain the azure spun yarn of the present invention. Of course, the drawings are for illustrative purposes only, and some changes may be made without departing from the spirit of the invention. 1. Shinomaki 2.. Roving 3.. Back roller 4.. Second roller 5..・Composite spun yarn 1O・・Snail wire 11・・Package 12φ・Guide 13 Kaya delivery roller 14・・Fluid nozzle /i/. Patent applicant Keyaki 1, Toyobo Co., Ltd.

Claims (1)

[Claims] (1) The fineness is 1.0 denier or less, and the average fiber length (
It is characterized by being made of stable polyester fibers having a ratio of the square root of the fineness (denier) to the square root of the fineness (denier) of 60 or more and continuous multifilament yarn or processed yarn, and having a blending ratio of the stable polyester fibers of 30% to 70%. A spun yarn made with prayer. (2) The paddy spun yarn according to claim 1, characterized in that the continuous "1" multifilament yarn or processed yarn is a polyester fiber. (8) The paddy spun yarn is heated at 15≦. The interwoven spun yarn according to claim 1, characterized in that a real twist with an index of ≦25 is added.Here, the heating index and 1Iiv' average fiber length of the polyester fiber (-1- ) × X twist coefficient (English formula).