JPS6028536A - Synthetic fiber yarn using flat decorative yarn 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] [Technical Field] The present invention includes a core yarn and a wrapped yarn, and the wrapped yarn uses a yarn of a special shape, and the wrapped yarn on the decorative thread is made in a flat state. The present invention relates to a flat decorative small yarn which has a unique appearance and texture by giving the same, and a method for manufacturing the same.

<Conventional technology> Many types of threads are known as decorative threads.

In other words, the spun yarn of each building uses natural fibers, recycled fibers, synthetic fibers, etc. as materials used for decorative small yarns.

Filament yarns and processed yarns are used, and decorative yarns can be manufactured by using special means in the yarn manufacturing process such as the spinning process, or by using a twisting machine or winding machine. method has been adopted. By appropriately combining the above-mentioned materials and the above-mentioned manufacturing methods, various decorative threads are manufactured and used.

However, these decorative small threads are essentially used for fashion pieces, and therefore, as their use increases, decorative small threads with known forms become relatively less fashionable, and their value in use decreases. There is a strong tendency to lose it. This trend is becoming more and more severe with the recent rapid changes in fashion, and therefore the fashion industry is constantly looking forward to the emergence of special T=AB yarns with unprecedented new appearance and texture.

<Object of the Invention> The present invention comprises a core yarn and a wound yarn, and the wound yarn is a yarn of a special form using a plurality of synthetic fiber multifilaments, and is flat on the decorative thread. It is an object of the present invention to provide a flat decorative staple yarn which is given a unique appearance and feel to a conventionally known decorative staple yarn, and a method for producing the flat decorative staple yarn.

Structure of the Invention The object of the present invention is to provide a biased "f'-decorative small yarn comprising a core yarn and a wound yarn wound around the periphery of the core yarn. Using a plurality of synthetic fiber multifilaments that have been twisted with single or double threads, then aligned and false-twisted, tjij decorative reinforcements, small threads, and winding threads are wound around the core thread. the winding portion and a projecting portion that is separated from the core yarn and projects in a direction substantially perpendicular to the axis of the core yarn; The part where the threads are intertwined in parallel at intervals, and the part where one or more or all of the threads constituting the wrapped thread are separated from each other and there is a snarl-like joint part in each system. It is noted that at least the protruding portions of the decorative system are arranged in a flat state substantially parallel to a plane containing the axis of the core yarn. Characterized by oblate decoration) achieved by threads.

Synthetic fiber multifilament yarn is used as the winding yarn, and as will be clarified in the explanation of the method for producing a flattened decorative staple yarn according to the present invention described later, the flattened state is imparted by a heating pressing device, so that the flattened yarn is not flattened. The condition is stable against water treatment etc. during use of decorative thread.

In addition, the flattened state is applied not only to the protruding part of the winding thread in the decorative flap system, but also to the winding part of the winding thread and the core thread, as well as to the presser thread used as necessary. good. In this case, if synthetic fiber yarn is used for the core yarn and the presser yarn used as necessary, the flat state can be maintained even more stably.

Another object of the present invention is the method for producing flat decorative threads, the object of which is to heat a plurality of synthetic fiber multifilament threads and then false-twist them after stretching them ninety times. After each yarn is heated, the yarn is pulled and aligned, and the yarn is heated and then false-twisted to create a wrapped yarn. Wrapped and twisted sb
This is achieved by a method for producing unevenly half-decorated staple yarn, which is characterized in that the yarn is made and the decorative staple yarn is passed through at least one heated pressing device.

In addition, when manufacturing the flat cylindrical multifilament yarn according to the present invention, at least one synthetic fiber multifilament yarn is wound and twisted at a feed rate of 2 times or less around the first core yarn made of synthetic fiber multifilament yarn. Then, a plurality of the first decorative threads are arranged and false twisted to create the winding thread, and the winding thread is applied to the second core thread. 2x or more 20
A second decorative yarn may be produced by winding and twisting at a feed rate of twice or less, and the M2 decorative yarn may be passed through at least one heating pressing device.

By using a pair of heating rollers as the heating pressing device and performing heating pressing by passing the decorative thread between the pair of heating rollers, at least the protruding portion of the decorative thread is flattened. be able to.

In this case, by using two pairs of heating rollers and passing the decorative threads successively through the two pairs of heating rollers, at least the protruding portions of the decorative threads can be more reliably flattened.

Further, the flattened state can be adjusted by adjusting the temperature and pressing force of the heating roller. That is, by heating the heating roller to an allowable high temperature in consideration of the thermal properties of the synthetic fibers used and increasing the pressing force of the heating roller to treat the decorative yarn, not only the protruding portions of the decorative multi-thread but also the winding The attached part and even the core yarn can be flattened.

Furthermore, by fixing the synthetic fiber multifilaments together in the flattened portions, it is possible to provide a thread with fixed irregularities.

Furthermore, the presser thread is wound in the opposite direction to the winding direction of the winding thread, as is done in the conventional production of decorative thread using winding thread, before being passed through the heating pressing device. It may also be used. If a pressing thread is used, the wrapped thread can be stably fixed around the circumference of the core thread. However, in the flat decorative yarn according to the present invention, the wrapping yarn is flattened by the heating pressing device and fixed to the periphery of the core yarn. Except for the purpose of preventing the wrapped portion from shifting on the core thread due to a guide or the like, it is smaller than conventionally known wrapped threads.

Note that the term "false twisting" used in carrying out the method of the present invention is used in a broad sense and includes secondary set.

<Example> The flat cylindrical multi-filament according to the present invention and the manufacturing method thereof will be described in detail with reference to the accompanying drawings showing an example of the decorative small yarn according to the present invention.

FIG. 1 is a perspective view schematically showing the structure of flat #9 yarn according to the present invention. As shown in FIG. 1, the flat tube multi-filament according to the present invention consists of a core thread 1 and a wound thread generally designated by 2. In the embodiment shown in FIG. 1, the wrapped yarn 2 is wound around the circumference of the core yarn 1 in two directions. Also, if necessary, wrap thread 2
After winding, a pressing thread (not shown) may be wound in a direction opposite to the winding direction of the winding thread 2 to increase the stability of the flat decorative thread.

In the flattened multifilament yarn according to the present invention, the winding yarn is made of synthetic fiber multifilament yarn, and in the embodiment shown in FIG. 1, three synthetic fiber multifilament yarns 21, 22, and 23 are used. The number of synthetic fiber multifilaments constituting the wound yarn 2 is not limited as long as it is two or more.

In the embodiment shown in FIG. 1, three synthetic fiber multifilament yarns 21, 22, and 23 are heated as single yarns, aligned, and then false twisted to form a wound yarn. In this case, the three aligned synthetic fiber filaments may be further heated and subjected to false twisting to form a wound yarn. In addition, for each of the synthetic fiber multifilament yarns 21, 22, and 23, at least one synthetic fiber multifilament yarn is wound and twisted by feeding the core yarn of the synthetic fiber multifilament, etc. Good too. In short, it is only necessary that the individual yarns to be aligned be subjected to a normal twisting process or a winding twisting process to impart twisting torque to the yarns on the sides before being subjected to the false twisting process.

As shown in FIG. 1, the wound yarn 2 in the flat decorative multi-system according to the present invention has wound portions A, , A2 wound around the core yarn 1, and is separated from the core yarn 1 and substantially away from the axis of the core yarn 1. It consists of protruding portions Bl, B2*B3 that protrude in a direction perpendicular to . The protruding conditions of the protruding portions B1 a B2 a B3 are random in the protruding position, the form of the protruding portion, and the length of the protruding portion. For example, in some cases, synthetic fiber multifilaments 21, 22, 23 as shown in FIG.
are intertwined in parallel with each other at intervals. (In Fig. 1, in order to simply show the structure of the flat decorative yarn according to the present invention, the synthetic fiber multifilament is shown as a thick curve, and the form of the single filament in the false-twisted multifilament is omitted. Furthermore, the entanglement of individual multifilaments is also shown in a simplified manner.) On the other hand, in other protruding parts of the winding yarn, for example, the first
As shown by B in the figure, three synthetic fiber multifilaments are separated from each other, and a snarl-shaped joint portion is formed in each synthetic fiber filament. This intertwined portion is formed in a snarl shape because the twisting torque generated before the false twisting process remains even after the false twisting process.

In reality, the shape of the protruding portion of the wound yarn of the flat decorative multi-filament according to the present invention cannot be clearly classified into two types as shown by B or B2 in FIG. 1, and for example, B3 in FIG. As shown in , both forms are mixed. And furthermore, the first
The deformation of the synthetic fiber multifilament into a single filament by false twisting, which is not shown in the figure, is taken into account, and the overall appearance and texture is complex and unique, which is unprecedented.

The flat knot poly yarn according to the present invention is characterized in that at least the protruding portion of the decorative yarn is arranged in a flat state substantially parallel to a plane (indicated by C in Figure 1) containing the axis of the core yarn. shall be. This flattened state is formed by passing the decorative multi-fiber made of synthetic fiber filaments described above through at least one heating pressing device, so that it has an uneven axial cross section and a flattened portion as shown in FIG. With this method, it is possible to obtain a flat knot multifilament in which synthetic fiber multifilaments are bonded together. Furthermore, if the above-mentioned snarl remains clearly and becomes flat, as shown in Figure 3, the snarl-like protruding parts 24 and 25 will form a flat knot polyfilament protruding from the uneven surface. Obtainable. Furthermore, if there are a particularly large number of snarled portions, the winding yarn 2 is thinly entangled around the circumference of the core yarn 1, resulting in a large number of snarled portions 26.2, as shown in FIG.
It is possible to obtain a prolate polyfilament in which 7 protrudes from the part.

The appearance and texture of the flat-knotted multifilament according to the present invention depends on the type of thread used, the thickness of the core thread, the thickness of the synthetic multifilament used as the winding thread, and the number of threads arranged.

By changing the false twisting processing conditions, the feed rate of the winding yarn to the core yarn, the winding rotation, the temperature and pressure of the heating press device, and other materials and manufacturing conditions, we have created a unique appearance that is not found in conventional decorative multi-threads. A wide variety of flat knot yarns with different textures can be obtained.

Hereinafter, several specific examples of the method for manufacturing the flat decorative thread of this ◆4 light will be shown.

Example 1 Polyester multifilament yarn 75 d 1 strand to 2
The yarn is heated to a twist of 1500'r/M, and the two yarns are pulled together and heated to an S twist of 850T/M. The heated yarn is twisted twice at 2,800 T/M at a temperature of 210° C. to produce a wound yarn. This yarn was wound using a hollow spindle winding machine to create a polyester multifilament yarn of 150 d1.
Feed rate 1.8 times that of the actual core yarn, S twist 1,200
T/M winding and twisting, then 2 twists of 800T using one polyester multifilament 150d as a presser thread.
/M winding and twisting process to obtain decorative multi-thread. This decorative multi-filament is run between a pair of heating rollers at a temperature of 205° C. and a pressure of 10 kg/cm to obtain a flat-axis multi-filament according to the present invention.

The obtained oblate-axis polyfilament has the appearance shown in FIG.

Example 2 d? One 50d polyester multifilament yarn is twisted twice and heated at 1000 T/M, and the three heated yarns are pulled together and subjected to false twisting at an S twist of 2.200 T/M and a temperature of 205° C. to make a wrapped yarn. This wound yarn was processed using a hollow spindle winding machine at a feed rate of 13.5 times for one core yarn of 150 d of polyester multifilament yarn, with an S twist of 800 T/
Wrap and twist with M, then use 1 polyester multifilament yarn 150d as a presser yarn and twist 2 times at 700T/M
A decorative multi-thread yarn is obtained by winding and twisting the yarn. Temperature 2 of this ornamental thread
Embodiment 3 of flattened decoration according to the present invention by passing through a heating pressing device having two pairs of heating rollers with a pressure of 10 kg/cm at 05° C. Polyester multifilament yarn 50d1 is attached to a core yarn consisting of one polyester multifilament yarn 50d. The book is twisted at a twist rate of 1.5 times and 85oT/M to obtain a first decorative multi-thread. Pull these two first decorative threads together and S
A twisted yarn is obtained by false twisting at a twist of 2,200 T/M and a temperature of 205°C. This wound yarn was wound and twisted using a hollow spindle winding machine at a feed rate of 15 times for one core yarn of 150 d of polyester multifilament yarn, and a S twist of 600 T/M to form a second decorative yarn. obtain. This second decorative multi-thread is run through a heating pressing device having two pairs of heating rollers at a temperature of 205° C. and a pressure of 13 kg/cx to obtain a flat decorative thread according to the present invention. The obtained oblate-axis polyfilament has the appearance shown in FIG.

Example 4 2 twists per 50d polyester multifilament yarn
Heating is performed at 500 T/M, and the three heated yarns are pulled together and subjected to false twisting at an S twist of 2,300 T/M and a temperature of 205° C. to make a wound yarn. This wound yarn is twisted using a hollow spindle winding knitting machine at a feed rate of 10.5 times for one core yarn of polyester multifilament yarn 75d and an S twist of 600 T/M to obtain a decorative multifilament yarn. The temperature of this decorative multi-thread is 205
"C, the flat shaft polyfilament according to the present invention is obtained by passing through a heating pressing device having two pairs of heating rollers with a pressure of 8 kg/cm. The obtained flat shaft polyfilament has the appearance shown in FIG. have

<Effects of the Invention> Since the flat-axis multi-thread according to the present invention is configured as described above, a decorative multi-thread that is flat and has a unique appearance and texture, which is not found in conventional decorative multi-threads, can be obtained. As a result, knitted fabrics made using the flat axis multifilaments according to the present invention, and products made from these knitted fabrics, are extremely novel and fashionable. In addition, since the flat-axis multi-filament according to the present invention uses synthetic fibers for the wound yarn, the flat state is not stable, and the flat state may be disrupted by external forces applied to the knitted fabric or product during the process or during use. There aren't many things.

Furthermore, the flat shaft multi-filament according to the present invention has the characteristic that its unique appearance and texture can be varied over a wide range by changing its constituent elements, that is, the type and thickness of the thread used, processing conditions, etc. have Therefore, it is possible to change the appearance or feel of products using the flat axis multi-filament according to the present invention in response to changes in fashion.

[Brief explanation of the drawing]

1 is a plan view schematically showing the appearance of each example of a flat decorative thread according to the present invention. 1... Core thread, 2... Winding thread, 21.22.23...
・Turn. Individual synthetic fiber filament yarns constituting the threads, 24.
25, 26... Snarl-shaped protruding part, A1゜A2・
... Winding part of winding thread, B1 e B2 # Bs...
・Protruding part of the winding yarn, C... A plane containing the axis of the core yarn. $1 Figure 2 Figure 3 Figure 4

Claims (1)

[Scope of Claims] 1. A core yarn and a flat decorative yarn which is wound around the circumference of the core yarn and includes fc winding, wherein the wound yarn is preliminarily coated with a single yarn or double yarn. Using a plurality of synthetic fiber multifilaments that have been twisted with yarn, then aligned and false-twisted, the wrapped portion is wrapped around the MiJ-marked wrapped core thread on the decorative thread. a protruding portion that is separated from the core yarn and protrudes in a direction substantially perpendicular to the axis of the core yarn, and a plurality of threads constituting the wrapped yarn are spaced apart from each other on the wrapped yarn in the protruded portion; A part where one or more or all of the threads constituting the wrapped thread are separated from each other and a snarl-like entangled part is formed in each system. and furthermore, at least the protruding portion of the decorative thread system is arranged in a flat state substantially parallel to a plane including the axis of the core thread.
The characteristic feature is flat-shaft threads. 2. After heating several synthetic fiber multifilament yarns, they are pulled together and false-twisted, or after heating, several synthetic fiber multifilament yarns are heated, pulled together, and then the pulled yarns are heated and then false-twisted. After twisting the thread to produce a thread, the thread is twisted at a feed rate of 2 times or more and less than 20 times the core thread to produce a decorative thread. A method for producing a flat shaft yarn, which comprises passing the yarn through at least one heating pressing device. 3. The manufacturing method according to claim 2, wherein the # moving yarn is passed through at least one pair of heating rollers. 4. The manufacturing method according to claim 3, wherein the decorative thread is passed through two pairs of heating rollers in succession. 5. The decorative thread has the winding thread at least twice as large as the core thread.
3. The manufacturing method according to claim 2, wherein the presser yarn is formed by winding and twisting at a feed rate of 0 times or less and then winding and twisting the presser yarn in a direction opposite to the twisting direction of the winding and twisting. 6. Wrap and twist at least one synthetic fiber multifilament yarn at a feed rate of 2 times or less with respect to the first core yarn made of synthetic fiber multifilament yarn to produce a first @small yarn; A plurality of the first decorative threads are aligned and false twisted to create a winding thread, and the winding thread is at least twice as large as the second core thread.
a second decorative thread is produced by winding and twisting at a feed rate of 0 times or less], and the second decorative thread is passed through at least one heating pressing device. How to make yarn. 7. The manufacturing method according to claim 6, wherein the second decorative multi-thread is passed through at least one pair of heating rollers. 8. The manufacturing method according to claim 6, wherein the second S multi-filament is continuously passed through two pairs of heating rollers. 9. After the second decorative yarn wraps and twists the winding yarn at a feed rate of 2 times or more and 20 times or less of the core yarn, press the yarn in the opposite direction to the twisting direction of the winding and twisting process. 7. The manufacturing method according to claim 6, wherein the material is formed by winding and twisting.