JPH0236698B2 - FUKUGOKAKOITOOYOBISONOSEIZOHOHO - Google Patents

Description

[Detailed description of the invention]

(Field of Industrial Application) The present invention relates to a composite textured yarn having a spun-like appearance and texture and excellent post-processability, and a method for producing the same. (Prior art) Conventionally, when two types of filament yarns with different elongations are drawn together and fed by a supply roller for false twisting, the yarn with low elongation is difficult to stretch, so the It is well known that the threads that constitute the core and have a high elongation are easily stretched, so they are twisted so as to surround the outer layer of the threads. When two yarns with different elongations are aligned and false-twisted, in order to create a wool-like soft feel, it is necessary to use false-twisting conditions at high magnification and low temperatures. Yarn cracks occur, making it difficult to pass through the knitting and weaving process, leading to trouble. In addition, if false twisting conditions at low magnification and high temperatures are used to improve thread cohesiveness in order to improve passability in subsequent processes, knitted fabrics will have a hard texture and a soft feel. However, it is far from wool-like. (Problems to be Solved by the Invention) The present invention solves the problem that yarn cracking occurs in the conventional manufacturing method of composite processed yarn, and the passability of the knitting and weaving process is poor, and the knitted fabric has a hard texture and a soft feel. This is an attempt to solve problems such as not being able to obtain the desired results. (Means for Solving the Problems) Therefore, the present invention is composed of a low elongation filament and a high elongation filament, and has a crimp waveform and phase of the filaments randomly in the longitudinal direction of the yarn, and It has an integral assembly structure consisting of a part where filaments of different elongation are mixed and intertwined and a part where both filament groups made of filaments of the same elongation intersect with each other and are arranged side-by-side with their orientation reversed. It is a composite processed yarn which locally contains a converged structure in which the waveforms and phases of the crimp of the filaments are approximated and converged between the integrally assembled structures, and two types of filament yarns with different elongations are used to reduce the A post-twisting guide in which the high elongation yarns are fed separately and mixed and entangled with a fluid under the condition that the ratio of the high elongation yarn feed speed Vh to the elongation yarn feed speed Vl satisfies 0.85≦Vh/Vl≦1.02. It is obtained by simultaneously stretching and false-twisting the fibers, and this is used as a means to solve the problem. (Function) In the present invention, the high elongation yarn and the low elongation yarn are separately
After the interlacing treatment is performed by supplying the low elongation yarn equal to or more than the high elongation yarn, the yarn is doubled in the false twisting area, and the yarn at the time of doubling is Composite processing is achieved by reversing the orientation of the twisted yarn, that is, the orientation of the twisted yarn such that the low elongation yarn is wrapped around the high elongation yarn during false twisting, retrospective twisting and twisting, on the false twisting heater. get thread. (Example) An example of the present invention will be described below based on the drawings. Fig. 1 shows an outline of a manufacturing apparatus according to an example of the present invention, where 1 is a package of high elongation yarn, and 2 is a package of low elongation yarn. It is a package cage of elongation yarns, and the high elongation yarn 1 is the first
The low elongation yarn 2 is separately supplied from the supply roller 3 and the second supply roller 4 . At this time, the supply speed of the first supply roller 3 is Vh, the supply speed of the second supply roller 4 is Vl, and 0.85≦Vh/Vl≦1.02.
Subsequently, both yarns are supplied to the false twisting area via the fluid interlacing and twisting guide 6 in the fluid mixing and entangling device 5. Further, 7 is a guide, 8 is a heater, 9 is a false twister, 10 is a first delivery roller, 11 is a second
A delivery roller 12 indicates a wound composite processed yarn. Now, when Vh/Vl exceeds 1.02, the high elongation yarn will wrap around the low elongation yarn, and the resulting composite textured yarn will become neps-like, causing problems in passing through the subsequent process. Also, if you set it to 1.05 or higher,
Sagging of the yarn is likely to occur at the point where it exits the first supply roller 3, and yarn breakage occurs frequently. If Vh/Vl≦1.02 is too small, side-by-side inverted configuration will not occur and the desired composite textured yarn will not be obtained. In addition, thread breakage still occurs on the exit side of the second supply roller 4, so Vh/Vl is
Must be 0.85 or higher, preferably 0.90≦
Excellent composite textured yarn can be obtained in the range of Vh/Vl≦1.00. In the yarn obtained by the method of the present invention, the low elongation filament and the high elongation filament have crimp waveforms and phases randomly, and are entangled with each other between filaments of the same kind of elongation or with filaments of different kinds of elongation,
It has an aggregate structure in which fibers are mixed and intertwined together, a low elongation filament group and a high elongation filament group are inverted side by side, and the crimp waveform and phase are locally similar, resulting in a concentrated focusing structure. It is a composite textured yarn that partially incorporates the fibers. Further, the fiber/entanglement device 5 is extremely important for interlacing, mixing, and reversing filaments of the same type and different elongation and both groups of filaments, and a commonly used interlace device, taslan device, etc. can be used. However, the false twisting and retrospective twisting of the false twisting machine is guide 7.
Therefore, in order to maximize the effect of entangling, mixing and reversing filament groups, it is essential to provide a twisting guide immediately after the device 5. It is necessary to minimize retroactive twisting. However, there is a slight difference in effectiveness between using an interlacing device and a Taslan device for the fiber entangling device 5. In the former case, the effect of stopping retrotwisting can be achieved even if it is small, but in the latter case, In some cases, it is necessary to securely stop twisting to the extent that retroactive twisting has almost no effect. Note that the twist stopper guide 6 is not particularly limited in its specifications, but generally 1
~Good results can be obtained with a 3-point pin guide. The false twister 9 may be of a spindle type, but a circumferential friction false twister is preferable in order to improve operability and cohesiveness of the composite processed yarn. The false twist draw ratio is the maximum draw ratio (MDR) of low elongation yarn in normal processing.
However, especially when aiming for a deep color dyeing effect, a magnification that is at most less than the natural draw ratio (NDR) of high elongation yarn is adopted. Highly drawn yarn has a spinning speed of 3000 m/min (MDR: 2.6 times)
or more, preferably 3500m/min (MDR: 2.3 times)
Above, the spinning speed for low elongation yarn is 2000m/min (MDR: 3.5)
The composite processed yarn of the present invention can be obtained in the following manner. Note that FIG. 2A shows a structural diagram that includes a locally crimped waveform and a convergent structure in which the phases are approximated and focused, and FIG. 2B shows the other general structural diagram. Hereinafter, the present invention will be explained in detail with reference to the following specific examples. Low elongation polyester filament yarn 115d/36f obtained at a spinning speed of 3000 m/min (MDR: 2.6 times),
Highly elongated polyester filament yarn 130d/36f obtained at a spinning speed of 1600 m/min (MDR: 4.0) was subjected to composite stretching friction false twisting using the apparatus shown in FIG. 1st delivery speed 400m/min, heater temperature
Table 1 shows the results obtained by changing the overfeed of each supplied filament under the conditions of 180°C, surface speed of the friction false twister of 740 m/min, and air pressure of the fluid entangling device of 3.0 Kg/cm. In Table 1, Vh/Vl is 1.08,
At 1.05, it becomes a net-like composite yarn with poor yarn running stability, and at 0.08, it becomes a two-layered core/sheath yarn. The yarn running stability was also a step further, but as a result, a side-by-side structured yarn containing the mixed fiber interlacing portion of the present invention was obtained with a value of 1.02 to 0.85.
It had excellent yarn running stability and excellent weaving texture. In addition, the fiber texture is determined by using individual composite processed yarns obtained by false twisting to make a fabric, and
A sensory test of the texture after color washing using Dianix Blue BG.FS (Mitsubishi Kasei) at a dye concentration of 4.0%, a bath ratio of 1:50, and 100°C is shown.

[Table] (Effects of the Invention) As explained in detail above, the composite processed yarn obtained by the present invention is essentially different from the core-sheath structure as described in the prior art, and has a structure of both components. While the filaments are mixed and entangled, both components are arranged side-by-side, and the arrangement is reversed, forming an integrated structure as shown in Figure 2, which is extremely suitable for post-processing and has a waveform phase of crimp. The convergence part (FIG. 2A) where the particles are locally concentrated is also very useful for improving post-processing efficiency. Further, the mixing and entangling of the respective filaments of both components and the reversal of both components are produced as a result of the fluid mixing and entangling action and the coordination change of both components on the false twist heater.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the running state of yarn in an apparatus for carrying out the method of the present invention, and FIG. 2 is a schematic diagram of the structure of a composite processed yarn obtained by the present invention. Description of the main parts of the figure: 1...High elongation yarn package, 2...Low elongation yarn package, 3...First supply roller, 4...Second supply roller, 5...Fluid mixing and entangling device, 6...Twisting guide, 8...Heater,
9... false twisting tool, 12... winding composite processed yarn.

Claims (1)

[Claims] 1. Consisting of a low elongation filament and a high elongation filament, the waveform and phase of crimp of the filaments are random in the longitudinal direction of the yarn, and filaments of the same type and different types are mixed and entangled. and a part in which both filament groups made of filaments of the same kind of elongation intersect with each other and are arranged side-by-side with their orientations reversed; A composite processed yarn that locally contains a convergent structure in which the waveforms and phases of filament crimp approximate and converge. 2 Two types of filament yarns with different elongations are fed at a feeding speed Vh for a high elongation yarn versus a feeding speed Vl for a low elongation yarn.
A composite material characterized in that the fibers are supplied separately under conditions where the ratio of Vh/Vl satisfies 0.85≦Vh/Vl≦1.02, are mixed and entangled in a fluid, and are then simultaneously stretched and false-twisted through a twisting guide. Processed yarn manufacturing method. 3. The method for producing composite textured yarn according to claim 2, wherein the ratio of the supply rate Vh of the high elongation yarn to the supply rate Vl of the low elongation yarn is 0.90≦Vh/Vl≦1.00.