JPS58144139A - Fancy 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] The present invention provides a design yarn, * having at least three filament yarns (
Flat yarn) K & 11@Relates to slub yarns that have been crimped to form long slabs without traps.

By using the false twist and crimping technique, the circumference D of one yarn (core yarn) is
A design yarn in which the other yarn (wrapped yarn) is wound twice or three times is known from Japanese Patent Publication No. 5G-31147.

With the recent trend toward natural fibers, this type of textile design has been modified in various ways to reflect the demand for more vivid changes in appearance.

For example, attempts have been made to obtain changes such as those seen in silk chasiton by increasing the length of the multiple winding part represented by the triple part (Japanese Unexamined Patent Publication No. 5-14111
121 Publication, *See Kaimei 5m-1O7.1 Publication),
':' However, the decorative yarn described in the former publication No. 5 has problems with lack of gloss and loose hardness due to the first twisting, and the latter decorative yarn described in the publication No. 0 has a fine denier winding yarn, so it is not sufficient. The disadvantage is that you cannot obtain a fancy effect. In order to provide these design yarns with a Luxantane-like luster and fancy effect, as well as a stable slab that can withstand hardening, the slab length is approximately
The reality is that the false twisting process cannot be expected to have a tonne greater than that. One of the reasons for this is that the length of the multiple winding section, or triple winding section, depends on the traverse length of the winding yarn that is fed under overfeed to the core yarn during false twist rotation. Due to. If this traverse length reaches 203 or more, the slab length will be correspondingly long, which may be surprising. However, in the false twisting process, as is well known, there is a limit to the number of rotations of the core yarn that can absorb the overfeed amount of the wrapped yarn, and under an overfeed member that exceeds this limit, the number of rotations of the core yarn in the wrapped yarn system With this type of paper, which wraps loosely and in a flower-like shape, this slab will inevitably come loose, making it no longer suitable for use in the weaving and knitting process.

The present inventors have overcome the limitations of the above-mentioned false twisting process, and have succeeded in creating a fabric with excellent workability (yarn handling) and long slab (Lon).
As a result of extensive research, we found that the desired slab length can be formed when using a filament yarn with a larger number of intertwined parts than the value of the wrapped yarn and using a relatively low number of false twists. I learned that.

Thus, according to the present invention, (1) at least two filament yarns are used, one of which is used as a core yarn, and the other yarn (wrapped yarn) is wound around it in double and triple layers. In the design yarn obtained by false twisting and crimping, the length of the triple-wound part was made 20mm or more by arranging interlaced yarn with an interlacing degree of 1°6 or more as the wrapping yarn. Design yarn and 1 □□□) Interlaced filament yarn with an interlacing degree of 10 + 7 m or more is 5a91 for the core yarn during false twist rotation.
A method for producing a decorative yarn, characterized in that it is fed under an overfeed of 6 or more, and is wound with a false twist coefficient α of at most 1.0 or less.

is provided.

In the present invention, the degree of interlacing refers to the degree of interlacing by floating an interlaced yarn of 2 seconds length on water or an aqueous solution containing a surfactant, opening the non-interlaced portions, and unifying the number of remaining interlaced portions. and convert it to the number of pieces per m.

The process for obtaining the designed yarn of the present invention is shown in FIG. Between the cores, the core yarn 1 is removed from the package 2 and introduced via the guide 3.3' from the feed roller 4 to the false twister: between the false twist spindle 5 and the feed roller 4 it is given a false twist. Rotate.

On the other hand, the wrapped yarn 7Fi is taken out from the package 8, passed through the guide 3, processed through the interlace nozzle 11lfc provided between the co-feeding roller 9 and the take-up roller 1G, and turned into an interlaced yarn 12. It merges and wraps under an overfeed of 80 or more. At that time, the interlaced yarn 12
traverses intermittently as shown by the arrows, resulting in a triple wrapped portion. Next, the wrapped state of both prefectures is set by a heater, and after being unwound by a spindle 5 and later, it is taken up by a delivery roller 13 and wound up to a cheese 14. In this case, a secondary heater may be provided between the delivery roller 13 and the rolled cheese 14 to perform reheating.

In such a process, long slabs, especially 20csm
In order to obtain a slab that exceeds the above, it is necessary to satisfy at least the conditions U) and trunk) below.

0) Use a yarn that can provide a certain degree of convergence as the wrapping yarn. For this purpose, an interlaced yarn is most suitable for K, with an interlacing degree of at least 1 G'y/m, preferably 20 + 7 m~@Oφ12).

←) The false twist coefficient a is at most 1. o1 good stage is 0.7
Select a from the range of 5 to 0.85.

Furthermore, the slab length can also be adjusted by changing the number of filaments of the winding yarn and the cross section of the filaments.

Regarding this point, it has been known for a long time that when the number of filaments is small and the single fiber denier is large, the slab length generally tends to increase. . Conversely, as the number of filaments of the wound yarn increases and the crushed fiber denier decreases, it becomes extremely difficult to make long slabs. On the other hand, the present invention employs an interlaced yarn as the winding yarn, and as a matter of course, it is necessary to use a filament yarn with good interlacing (convergence) effect.

However, 1. Such an effect is improved as filament yarns, which were conventionally not suitable for making long slabs, have a large number of filaments and a small single fiber denier O. In this sense, the effects of the present invention are best exhibited when, in addition to the conditions 0) and ←) above, the number of filaments in the wound yarn is 36 or more, the filament denier is at most 2d, and WK is a filament This is when the cross section is irregular. Of course, even if the filament is circular, a desired slab length can be obtained by adding interlace to the filament.

In the present invention, the reason why slabs exceeding 20 crn are obtained is not clear at present, but when considered from the perspective of the traverse length of the wound yarn, the interlaced yarn having intermittent convergence parts is The winding behavior of yarn is different from that of normal flat yarn, and the traverse length changes in some way.
And this preferably has an a value of 1.0 or less. Fio, 75
It is presumed that the width will be increased in conjunction with the adoption of a low a of ~0.85.

Here, if the degree of interlace of the wound yarn is less than 10+/m, a strong and long slab can be obtained no matter how α is adjusted. It is not possible to do so, and the upper limit is at most 8
A value of 0 is appropriate; if this is exceeded, the winding may become loose or loose. On the other hand, regarding α, ﾾ1.
It needs to be 0, and under α larger than this, for example,
No matter how the degree of interlacing is changed, a slab exceeding 20t:xm cannot be expected. In this sense, the above-mentioned conditions 0) and ←) are inseparably combined conditions as far as the long slab intended by the present invention is concerned.

Of course, since the winding yarn is wrapped around the core yarn with a difference in thread length, it is necessary to overfeed the winding yarn during processing. It is necessary to have such a degree that one turn of the yarn can be tightly wound around it, and usually 110% or more, especially about 90 to 100% is appropriate.

As long as the yarn used in the present invention is a filament yarn, regardless of whether it is a synthetic fiber or a semi-synthetic fiber, it may be drawn or drawn depending on the function and texture of the final product.

A highly oriented undrawn yarn or the like can be appropriately arranged on the yarn wrapped in nine turns of the core yarn. As for the processing method, in addition to the usual number-inside/outside over-twisting processing or under-stretch processing, there is also an in-draw processing method using highly oriented undrawn yarn or unstretched yarn for the core yarn. good.

As described above, according to the present invention, it is possible to obtain a processed yarn having a Y-shape and a slab length that are found in natural fancy yarns by using the false twisting and crimping process of synthetic or semi-synthetic fibers.
It provides a valuable product as an exterior material.

Hereinafter, the present invention will be explained in detail with reference to Examples.

Example 1 In the process shown in Figure 1, 100 d of polyester was used as the core thread 1.
y' 24 flll, polyester 1io as wrapping thread
Processing is performed using sl/48fo under the following conditions.9.

Processing conditions (1) Wound yarn interlacing degree 43 pieces, 1 (2
) Provisional number (T)・21221G! ! /m(3
) False twist coefficient (α) 0.8 0) Overfeed between supply roller 4 and delivery sealer 13 10 inches (5) Wound yarn overfeed 95% (6)
Heater temperature: 190°C The appearance of the designed yarn thus obtained is as shown in Fig.
The length of No. 5 ranged from 10cIM to 4fiJK, and the average length was 30cm at the top.

On the other hand, in the above example, when the wound yarn was subjected to the same processing without being interlaced, a designed yarn as shown in FIG. 3 was obtained.

Furthermore, in the above example, polyester 75d/a s tit and sod/24 were used as the winding thread, respectively.
In this case, the slab portion 16 is in the range of 13 to 12 m,
Its average length was about 4 crs.

Example 1 In Example 1, processing was carried out by changing the interlace degree and a of the wound yarn, and the results shown in the following table were obtained.

From the above results, it can be seen that an extremely long slab can be formed when the degree of interlacing of the wound yarn and the value of α in the false twisting process satisfy the range of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a route diagram showing an example of the manufacturing process of the designed thread of the present invention, and FIG. 2 is a side view of the designed thread of the present invention. FIG. 3 is a side view of a conventional design thread. In Fig. 1, 1... core thread, 2... winding thread. 3...Interlaced nozzle. 4... Supply roller. 5...False twisting spindle. 6... Heater. 12...Interlaced yarn, 13...Nariberry roller. 15 in FIG. 2 is a long slab, and 16 in FIG. 3 is a normal slab.

Claims (1)

[Claims] (1) At least two filament yarns are used, one of them is used as a core yarn, and the other yarn (wrapped yarn) is false-twisted so that it is wrapped in double and triple layers. In the design yarn obtained by crimping, by arranging interlaced yarn with an interlacing degree of 10 or more as the wrapping yarn, the length of the triple wrapping part can be made 1 (151 or more). Design yarn. @) The degree of interlacing of the wrapped yarn is 20) y/vn~
The design yarn according to claim 181, which is SO+,-. (3) The designed yarn according to claim $9!1, wherein the number of filaments of the wound yarn is 36 or more. (4) The designed yarn according to claim @IJJi or item 3, wherein the filament denier of the wound yarn is 2- or less. (5) The designed yarn according to claim 1, wherein the filament cross section of the wound yarn is irregularly shaped. (6) For the core and yarn during false twist rotation, add 80% interlaced filament yarn with an interlacing degree of lo 'y/m or more.
- A method for producing a decorative yarn, which is characterized in that it is fed under overfeed and wound with a false twist coefficient α of at most 1.0 or less. @) The designed yarn according to claim 6, wherein the interlacing degree of the wound yarn is 206. -) The designed yarn according to claim 6, wherein the number of filaments of the wound yarn is 36 or more. (4) Claim 1fl# in which the filament denier of the winding thread is 2d· or less! The design thread described in Section 6 or Section 3. (5) Claim i in which the filament cross section of the wound thread is irregular! 1. Design thread as described in item 6.