JPH10280243A - Conjugated yarn and pile fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply set the twisting peaks of the pile yarns without damaging the qualities of the main fiber material by applying this technique to a variety of pile yarns without particular limitation in the kinds of main fiber material constituting the pile yarns. SOLUTION: The sheath yarn 11 is wound around the core yarn 12 containing thermally fusing fibers and the core yarn 12 is fused to the sheath yarn 12 and the resultant sheath-core type conjugated yarn is used as a pile yarn. Since the core yarn 12 is fused to the sheath yarn 11, the spiral shape of the sheath yarn wound around the core yarn 12 is fixed, the twist peak 13 of the spiral shape resists to disappear. Even when the core yarn 12 fuses to the sheath yarn 11 to form molten lumps, the lumps are surrounded by the sheath yarn 11 and the fabric hand of the sheath yarn 11 is not damaged. In the meantime, the spiral shape of the sheath yarn 11 is retained and the piled fabric rich in elastic recovery (cushioning properties) is obtained, when this conjugated yarn is used as a pile yarn.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a chair upholstery,
The present invention relates to a pile yarn of a pile fabric used for hand wiping, a rug (carpet), an entrance mat, and the like.

[0002]

2. Description of the Related Art In order to strengthen the binding between the fibers constituting a pile yarn and to enhance the convergence of the pile yarn as a yarn, a strong twist setting method in which the pile yarn is twisted and heated is adopted. . 6-23591 (Japanese Utility Model 1-5869)
No. 3) discloses a fusion setting method in which a heat-fusible fiber is mixed with a pile yarn, and the heat-fusible fiber is heat-fused to another fiber which is a main material of the pile yarn.

[0003]

The strong twist setting method can be easily applied to thermoplastic synthetic fibers such as nylon and polyester fibers, but can be applied to non-thermoplastic fibers such as wool, silk, hemp and cotton. However, the method cannot be easily applied because it requires a pretreatment for breaking the chemical bond of the fiber polymer. And even if the pile yarn is mainly made of nylon or other thermoplastic synthetic fibers, it requires a high degree of technology to control the temperature during the heating setting,
It cannot be applied simply. On the other hand, in the fusion set method, since the melting point of the heat-fusible fiber mixed with the pile yarn is at least 50 to 100 ° C. lower than the melting point of the general synthetic fiber, the temperature control at the time of the heat fusion is extremely advanced technology. However, since the main fibers constituting the pile yarn processed and finished are bonded to the heat-fusible fibers to form a net-like structure, it is difficult to obtain a pile fabric having a soft feel and a good touch.

[0004]

The object of the present invention is to apply the present invention to various pile yarns without being particularly limited to the types of main fibers constituting the pile yarn, without impairing the quality characteristics inherent to the main fibers.
An object of the present invention is to easily set the twisted mountain.

[0005]

SUMMARY OF THE INVENTION A composite yarn 1 according to the present invention.
No. 4 is particularly suitable for a pile yarn, and has a core-sheath structure in which a sheath yarn 11 is wound around a core yarn 12 having a heat-fusible fiber, and the core yarn 12 is thermally fused to the sheath yarn 11. This is a first feature.

A second feature of the composite yarn 14 according to the present invention is that, in addition to the first feature, 30% by weight or more of the fiber constituting the sheath yarn 11 is made of hemp, wool, silk, cotton, rayon or the like. It is a non-thermoplastic fiber.

A third feature of the composite yarn 14 according to the present invention is that, in addition to any of the first and second features, the sheath yarn 11 is a worsted spun yarn.

A fourth feature of the composite yarn 14 according to the present invention is that, in addition to any of the first, second and third features, the thickness (total denier) of the core yarn 12 is It is less than 1/5 and not less than 1/30 of the thickness (total denier).

The pile fabric 16 according to the present invention comprises
And composite yarn 1 having any of the second, third and fourth characteristics
4 is characterized in that the pile 15 is constituted.

[0010]

The sheath yarn 11 is wound around the core yarn 12 to form a coiled spiral shape, and the core yarn is fused to the sheath yarn 11, so that the sheath yarn 11 extends in the length direction of the core yarn 12. The spiral shape of the sheath yarn 11 is fixed without displacement, and the spiral shape of the sheath yarn 11 is set and fixed by the core yarn 12. Even when the pile yarn 14 is cut, the twisted ridge 13 of the spiral shape of the sheath yarn 11 is not unwound. 1
If 1 is a twisted yarn, the twisted ridges of the sheath yarn do not disappear, and even if the cut cross section bulges and opens the hair, the shape of the twisted ridges 13 is retained by the core yarn 12. .

On the other hand, even when the core yarn 12 is thermally fused to the sheath yarn 11 to form a molten mass, the molten mass is surrounded by the sheath yarn 11 and interposed inside the pile yarn. The fusing of the sheath yarn 11 is not impaired by the fusion, and even if the core yarn 12 is heated and melted into a hard wire, it is located at the center of the pile yarn 14, so that the pile yarn 14 can be used. Since the coiled helical shape of the sheath yarn 11 is maintained without remarkably losing the flexibility, the pile yarn 14 is given a resilient force similar to a spiral spring (spring coil), and the pile 15 has an elastic recovery force (cushion). Sex).

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS
No. 34 or JP-A-5-321035, etc., which has a core-sheath composite heat-fusible fiber or a heat-fusible fiber which has a high melting point polymer as a core component and a low melting point polymer as a sheath component. It is preferable to use a heat-fusible yarn mixed with adhesive fibers for the core yarn 12. When the core yarn 12 partially including the heat-fusible low-melting polymer or the heat-fusible fiber is used, a part of the low-melting polymer or the heat-fusible fiber is thermally fused to the sheath yarn 11 during heat setting. Even when worn, even in a state where the other part of the core yarn retains the elasticity and tensile strength as a fiber without being thermally fused, and the thermally fusible fiber is thermally fused to form a molten mass, Some other fibers of the core yarn maintain the fiber shape and maintain the spiral shape of the sheath yarn 11, and the twisted ridges 13 of the sheath yarn 11 formed by being wound around the core yarn 12 are not lost.

However, this means that a composite heat-fusible fiber having a core-sheath structure having a high-melting polymer as a core component and a low-melting polymer as a sheath component, or a mixture of a heat-fusible fiber and a non-fusible fiber is used. This does not mean that the heat-fusible yarn must be used for the core yarn 12. If the sheath yarn 11 is made of a thermoplastic synthetic fiber and has heat setting properties, the core yarn 12 does not have to be used. Since the core yarn 12 is used as an auxiliary means for making the sheath yarn 11 difficult to unravel, the core yarn 12 may be composed of only heat-fusible fibers that form a molten mass during heat setting.

More specifically, the difficulty of unraveling the twist required for the sheath yarn, that is, the convergence of the sheath yarn depends on the form of the pile 15 formed by the pile yarn 14, and the high convergence in the case of the cut pile. Is required, but in the loop pile, the twist (13) does not disappear due to the untwisting torque. Even in this regard, in the case of the pile yarn 14 used for the loop pile, when the sheath yarn 11 is made of non-thermoplastic fiber such as wool or cotton, the core yarn 12 forms a molten mass during heat setting. It may be composed only of adhesive fibers.

However, the sheath yarn 11 has a non-thermoplastic fiber such as wool, silk, hemp, cotton, rayon or the like having no heat setting property of 70% by weight or more. In particular, the sheath yarn 11 forms the cut pile 15. In some cases, a core-sheath composite heat-fusible fiber with a high-melting-point polymer as the core component and a low-melting-point polymer as the sheath component, or a heat-fusible fiber mixed with the heat-fusible fiber and the non-fusible fiber It is recommended that yarn be used for the core yarn 12.

In order to maintain the spiral shape of the sheath yarn 11 by heat-sealing the core yarn 12, the thickness (total denier) of the core yarn 12 is set to 1/30 of the thickness (total denier) of the sheath yarn 11. As described above, the thickness is generally about one-tenth of the thickness (total denier) of the sheath yarn 11. The thickness of the core thread 12 is set to 1/5 of the thickness of the sheath thread 11
The reason is that the physical property quality characteristics of the core yarn 12 do not impair the physical quality characteristics of the main fiber constituting the pile yarn, and the twisted ridges 13 of the pile yarn 14 are set to provide high quality and good feeling. This is for obtaining the pile fabric 16.

When the total denier exceeds 1000 denier, 3
For carpet pile yarns of 000 to 6000 deniers, generally good results can be obtained by setting the thickness of the core yarn 12 to 100 to 600 deniers, and generally around 300 deniers. The core yarn 12 may be a monofilament yarn, a multifilament yarn, or a spun yarn. The pile fabric 16 may be a base fabric 17 obtained by tufting pile yarns, or may be a Wilton carpet, a moquette, a towel or the like in which the base fabric 17 is knitted together with the pile 15.

[0018]

According to the present invention, it is possible to obtain a good-pile pile fabric 16 in which the sheath yarn 11 is set, the twisted ridge 13 is hard to be unraveled, and play hair is hardly generated from the pile. In particular, when the present invention is applied to a worsted spun yarn that is configured by combing short fibers in parallel and is used as a pile yarn of a high-grade carpet, the twisted ridge 13 applied to the worsted spun yarn is difficult to disappear, It is very convenient because the image as a luxury item is kept.

Even when the core yarn 12 is thermally fused to the sheath yarn 11 to form a molten mass, the molten mass is wrapped in the sheath yarn 11 and interposed inside the pile yarn (14). The feeling of the sheath yarn 11 is not impaired by the heat fusion, and even if the core yarn 12 is formed into a hard wire by heat melting, it is located at the center of the pile yarn 14. Since the coiled helical shape of the sheath yarn 11 is maintained without remarkably losing the flexibility, the pile yarn 14 is given a resilient force similar to a spiral spring (spring coil), and the pile 15 has an elastic recovery force. (Cushioning property), and FIG.
As shown in the figure, the projecting direction of the pile 15 projecting from the base cloth 17, that is, the inclination of the pile 15 is random, so that a new pile fabric is obtained in design, and when the composite yarn 14 is partially used, The pattern due to the difference in gloss due to the difference in inclination from the pile can be drawn on the pile surface,
The expression method of the pattern becomes rich. And since the sheath yarn 11 which is the main material of the pile 15 has a coiled spiral shape,
This also prevents the cloud (shading) phenomenon, that is, a phenomenon in which the cut pile is partially united and tilted in different directions to form a shadow on the pile surface. Therefore, the composite yarn 14 according to the present invention is suitable for pile yarn of carpet.

The heat fusible fibers are very expensive compared to ordinary fibers. However, 6-235910 (Jitsuhei 1)
-58693), as compared with the case where the heat-fusible fiber is used for the pile yarn together with the general fiber,
In the present invention, the sheath yarn 11 is wound around the heat-fusible fiber (12), and the degree of contact of the heat-fusible fiber (12) crossing and contacting the general fibers constituting the sheath yarn 11 is reduced. Get higher. As a result, in the present invention, the amount of the heat-fusible fiber (12) used is only a small amount that is about 1/10 of the thickness of the sheath yarn. Then, the core yarn 12 can be thermally fused to the sheath yarn 11 by heating in the carpet backing step,
No special equipment is required to heat seal it.
Therefore, according to the present invention, the pile yarn 1 can be simply and economically manufactured.
4 twisted ridges 13 can be set.

[Brief description of the drawings]

FIG. 1 is an enlarged perspective view of a composite yarn (pile yarn) according to the present invention.

FIG. 2 is an enlarged perspective view of a pile fabric according to the present invention.

[Description of Signs] 11 Sheath yarn 12 Core yarn 13 Twisted ridge 14 Composite yarn (pile yarn) 15 Pile 16 Pile cloth 17 Base cloth

Claims (5)

[Claims] A core-sheath structure in which a sheath yarn (11) is wound around a core yarn (12) having a heat-fusible fiber, the core yarn (12)
Is heat-sealed to the sheath yarn (11). 2. A non-thermoplastic fiber such as hemp, wool, silk, cotton, rayon or the like, wherein 30% by weight or more of the fiber constituting the sheath yarn (11) according to claim 1 is non-thermoplastic fiber. The composite yarn according to claim 1. 3. The composite yarn according to claim 1, wherein the sheath yarn according to claim 1 or 2 is a worsted spun yarn. 4. The thickness (total denier) of the core yarn (12) according to claims 1 and 2 is not more than 1/5 of the thickness (total denier) of the sheath yarn (11), and is 30 minutes. 3. The composite yarn according to claim 1, wherein the composite yarn is at least one of the following. 5. A pile fabric comprising a pile (15) constituted by the composite yarn (11) according to claim 1, 2, 3, or 4.