JPS60146036A - Production of partially bulky 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 [Technical Field of the Invention] The present invention relates to a technique for producing partially bulk crystalline systems from multifilament yarns.

[Prior art and its problems]

A method of manufacturing a bulkhead by subjecting two multifilamen 1 having different feeding rates to a fluid entangling process is known, but the method is uniform in the longitudinal direction and has little variation.

Therefore, a method for manufacturing partially curled high yarns having thick sections in the longitudinal direction has been devised using this fluid entanglement processing technology. One of the methods is to first oversupply multifilament yarn into a negative pressure box, temporarily store the excess supply, and then, when the multifilament yarn system is subjected to fluid entanglement treatment, the excess yarn is folded over and over again from the box. It was not possible to control the fineness of the resulting cap height, and there were restrictions on the ratio of the force 4 no-tall area to the non-bump height area and the setting of the length of the bulge area.

It is also difficult to control excess supply stored in the negative pressure box.

[Object of the present invention]

In view of the improvement of the prior art, the present invention allows the fineness and length of the high part of the umbrella to be freely set, as well as the length ratio of the high part of the umbrella to the non-forced high part, and the fineness of the high part of the umbrella can be freely changed. The purpose is to manufacture partially bulky high parts.

[Configuration of the present invention]

The present invention has the following configuration.

[Multifilament yarn (A) is wound and engaged with the friction roller for regulating the upper limit of yarn supply speed 1! After that, the two yarns are engaged with the nip roller and guided to a fluid jet disturbance nozzle, while the multifilament yarn (B) supplied from another supply roller is guided to the nozzle, and the two yarns are subjected to fluid jet disturbance treatment and pulled. When picking up the friction roller, the surface speed of the friction roller is varied, and the multifilament yarn (A
＞ is intermittently nipped with the nip roller to increase or decrease the supply of the multifilament yarn (Δ) to the nozzle. ” Partial force υ of the present invention
The crystal system Illll method will be explained in more detail.

The multifilament yarn to be supplied may be either recycled fiber or synthetic fiber, and is not particularly limited in terms of fineness, number of filaments, single fiber fineness, etc.

The multifilament yarn (A) is wound around a friction roller and engaged in contact with it, and is intermittently nipped with a two-knob roller, and then guided to a copper agitation nozzle for fluid. The nozzle has a pulling force, and when the multifilament yarn (A) is in a non-nip state at the nip roller section, the pulling force of the nozzle is transmitted to the upstream side of the nip roller, and the multifilament yarn (A) is transferred downstream of the friction roller. <The thread tension of A) is
Multi-fiscimen 1 on the friction roller
~The frictional force between the yarn (Δ) and the roller surface increases, and the multifilament yarn (A) is guided to the nozzle at a speed that is the upper limit of the friction roller surface speed.

At this time, since the surface speed of the friction roller is changing, the upper limit speed for guiding the multifilament yarn (A) to the nozzle also changes. Next, the multifilament thread (
When A) is in a nip state at the nip roller section, the pulling force of the nozzle is not transmitted to the upstream side of the nip roller, and the yarn (A) is not transferred to the multifilament 1 downstream of the friction roller.
) decreases, and the multifilament yarn (A) on the friction roller reduces the friction angle with the surface of the friction roller, slips, and is guided to the nozzle at a speed regulated by the nip roller. On the other hand, the multifilament 1-type (B) supplied from the supply roller merges with the multifilament yarn (A) at the nozzle entrance and passes through, thereby imparting entanglement to both yarns. In other words, the multifilament yarn system (Δ) intertwines with the multifilament yarn (B) while intermittently changing the feeding speed into the nozzle, thereby forming yarns with uneven fineness in the length direction. Then, it is guided to a take-off roller, and the partially kaza crystal system according to the invention is produced.

Here, the friction roller is a roller that substantially changes the degree of engagement between the roller and the yarn when the yarn tension downstream of the roller changes. This is a roller in which when the frictional force increases and the yarn tension decreases, the bottom of the friction horn between the roller surface and the yarn becomes in a re-slip state. The surface condition of this sunglass is not particularly limited, but it is preferable to use matte plating, matte rotoring, ceramic, or the like, with a suitably small dielectric III coefficient.

The multifilament yarn (Δ) is wound around the friction roller and brought into contact with the friction roller, and the contact can be set according to the processing state, from contact in a bent state to contact in a bent state to winding and wrapping several times. In addition, when the yarn is wound between a roller attached at a certain angle in the axial direction of the friction roller, a so-called Nelson roller, and the friction roller,
With thread wrapping on the friction roller [the pull position is shifted, allowing stable processing. This can also be replaced by guide Q9.

Also, changing the surface speed of the friction roller means
A method of directly changing the number of rotations of the friction roller by changing the second limit speed limit mark 1 for yarn supply, making the roller shape circular 111, changing the supply point of the supply system, and changing the rotation speed of the friction roller. Any method such as varying the surface velocity for the supply system is effective. Figure 3 shows a conical 7-reaction roller 8.
This shows an example in which the yarn is run 11 times (-). By moving the blade 7 in the direction of the arrow, the upper limit regulating speed of yarn supply can be changed. The speed can be varied slowly, and the fineness of the high part of the cap can be changed in large undulations.

Next, there are various ways to intermittently nip the yarn with a nip roller, but from the standpoint of operability and responsiveness, a kite is moved in front of the nip roller to change the path of the yarn and temporarily create a non-nip state. Good method.

Furthermore, by forming a circumferential groove on at least one of the nip rollers and moving a guide in front of the nip roller to change the thread path of the yarn, the non-nip period can be shortened and the fineness can be increased. It is permissible to make sudden changes.

Next, the nozzle used in the present invention may be any type as long as it has the ability to take up the yarn or provide entanglement (the fluid used is not particularly limited, but compressed air is effective).

FIG. 1 shows one embodiment of the invention. This will be explained in more detail using FIG. 1.

After the multifilament yarn (A) is wound around a friction roller 1 and brought into contact with it, it passes through a nip roller 3 and is guided to an interlacing nozzle 5 having a pulling force. Multifilament yarn (
B) passes through the supply roller 4, is guided to the fluid jet turbulence nozzle 5, merges with the multifilament yarn (A), and removes the entanglement (
=J After being applied, it is guided to the take-up roller 6 and wound up. The nip roller 3 is as shown in Fig. 2, and by moving the yarn path change guide 2, the multifilament yarn (A
) is intermittently nipped to vary the yarn supply speed U supplied to the fluid jet turbulent flow nozzle 5, and further to vary the upper limit supply speed of the multifilament yarn (A) using the 7 traction roller 1 of the device shown in Fig. 3. By doing so, it is possible to produce a partial kazacrystalline system with an extremely rich variety.

However, even if the surface speed of the rollers is varied as described above, the following relationship holds: Friction > Nip ≧ Take-off roller 1 Roller 3 Roller 6 Friction > Supply ≧ Take-off roller 1 Roller 4 Roller 6.

Further, the multifilament yarn (A) may be wound upstream of the 7-reaction roller 1 and provided with tension according to the processing state.

Next, the partial bulkhead portion manufactured by the present invention will be described.

The partial height portion according to the present invention has a height portion and a height portion without umbrella height.

In the non-potassic high part, the multifilament yarns (A) and (B) are hardly intertwined, or even if they are intertwined, they are mainly loop-shaped protrusions made of the constituent filaments of the multifilament yarn (A). The frequency of d-generation is clearly lower than that in the high force region.

In the high potion part, the multifilament yarns (A) and (B) are tightly intertwined and have many loop-shaped protrusions mainly composed of the constituent filaments of the multifilament yarn (△), and the bulk height is increased by the protrusions. The section has a three-dimensional 7S beam. Furthermore, the frequency of occurrence of the protrusions or the shape of the protrusion loops gradually changes within the potash-rich portion.

In addition, the boundary between the bulky high part and the non-bulky high part indicates an intermediate stage of the form of the other, and therefore the fineness gradually decreases at both ends of the force → no high part. However, the boundary between the high bulk area and the non-bulky high area is more abrupt than the gradual change in fineness within the high potash area, and therefore the high bulk area and the non-bulky high area can be clearly distinguished. .

The partially potted high portion manufactured according to the present invention will be explained using FIG. 4. Reference numeral 11 denotes a high part of the umbrella, which has a loop-shaped protrusion. 12 is a non-potassium high part, and the two constituent threads are in a state of being aligned.

〔Effect of the invention〕

The effects of the invention will be described below.

■ When forming the high part of the bulk, the fineness of the high part can be set by controlling the surface speed of the friction roller.

■Multificimen 1 supplied to the fluid injection disturbance nozzle
- When changing the yarn amount of system (A), since there is no temporary storage, the bulky high section, the non-bulky high section, and the ratio of the potency high section to the non-bulky high section can be set freely.

■ The high part of the jacket has a loop-shaped protrusion with a three-dimensional bulge, giving it a soft 1-like texture. In addition, the shape of the core-sheath M4Tj is stable against tension.

■ The yarn of the present invention has a bulky high part and a non-bulky high part in the longitudinal direction, and even within the high force part, the yarn has fineness unevenness, so it exhibits a very variable unevenness in the spinning light style. ing.

It is also possible to adjust the appearance of the slab electrical system by changing the ratio of high-bulk areas to non-bulk-high areas, and in that case, it is possible to form yarns with varying fineness in the individual high-bulk areas. It is possible to process a wide variety of yarns.

Example 1 A partially Kaza crystal system of the present invention was produced using a 50 denier 48 filament polyethylene terephthalate yarn as the multifilament yarn (A>, (B, )) using an apparatus as shown in FIG.

The apparatus shown in FIG. 1 (friction roller 1,
The surface speeds of the supply roller 4, nip roller 3, and take-up [J-ra 6] were set at 140 to 2201 Il/min, 101 l/min, respectively.
m/min.
A) is intermittently engaged with the nip roller 3, and the
Nipping was performed for 8 seconds, and a non-nipping state was maintained for 0.2 to 0.4 seconds to produce a partially bulky high part.

The produced yarns were as shown in FIG. 4(a), and had loops in the high bulk area, varied in fineness from 120 to 160 deniers, and had a natural span-like texture.

Example 2 The multifilament yarn (A) is a 100 denier 48 filament polyethylene terephthalate 1 yarn, and the multifilament yarn (B) is a 50 denier 24 filament polyethylene terephthalate 1 yarn as shown in FIG. The partially potash "high part" of the present invention was manufactured using such an apparatus.

In the apparatus shown in FIG.
The surface speeds of the nip roller 3, supply roller 4, and take-up roller 6 were set to 300 to 500 m7min, 182m/min, 182m/min, and 180m/min, respectively, and the air pressure of the fluid jet @ disturbance nozzle 5 was set to 3h/cnfG. Then, the yarn path change guide 2 is actuated to intermittently engage the multifilament 1-system (A) with the nip roller 3 to nip it for 1 to 2 seconds, and then to the non-nip state for 0.05 to 0.07 seconds. In this way, a high yarn with a partial strength of 1 was manufactured.

The manufactured yarn is as shown in Figure 4(b), and the fineness of the high bulk part is about 200-300 deniers and the length is about 15-21 deniers.
It has a spindle-shaped slab with a natural feel.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of one embodiment of the manufacturing apparatus of the present invention. FIG. 2 shows an example of a method of intermittently nipping yarn (△) into a multifilament. Fig. 3 shows a conical friction roller running a multifilament yarn (A>). Fig. 4 shows an example of a partially kaza crystal system produced according to the present invention. 1: 7 rection roller 2: Yarn path change guide 3: Nip roller 4: Supply roller 5: Fluid jet agitation nozzle 6: Take-up roller 7: Yarn path change guide 8: Conical 7 rection roller 11: Umbrella height 12 : Non-Umbrella Takabe Patent Applicant Higashi Shi Co., Ltd.

Claims (1)

[Claims] (1) After the Mardifilamen 1-system (A) is engaged with a friction roller for regulating the upper limit of yarn supply speed in a winding contact state, it is engaged with a nip roller, and then guided to a C fluid injection disturbance nozzle, while another The multifilament yarn (13) supplied from the supply roller is guided to the nozzle, and when the two yarns are subjected to fluid injection disturbance treatment and taken off, the surface stray electricity of the friction roller is varied, and the multifilament yarn (13) is A> is intermittently nipped with the nip roller, and the supply Φ of the multificimen 1 to yarn (A) to the nozzle is increased or decreased.