JPH1066674A - Pile thread for dust mat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a firm pile thread for a dust mat full of bulkiness, crimps and elasticity with an excellent dust catching property without setting. SOLUTION: These pile threads 11, 21 and 31 for the dust mat are constituted by doubling, mixing and twisting bulky threads 21c and 31c of synthetic fiber multifilaments further to threads for which the monofilament threads 11a, 21a and 31a of synthetic fibers provided with rigidity twisted in the opposite direction of a final twisting direction beforehand are mixed and twisted to bulky threads 11b, 21b and 31b of multifilaments composed of synthetic fibers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pile thread for a dust mat which is laid at an entrance of an office, a store or the like so as to prevent mud and dust attached to footwear such as shoes from being brought into a room.

[0002]

2. Description of the Related Art Conventionally, a shoe wiping mat for removing mud and dust adhering to the bottom of footwear such as shoes has been laid at entrances of offices and stores. The shoe wiping mat is formed from a wire mesh, a palm, a plastic sheet having a large number of irregularities and openings, and the like, and these shoe wiping mats are not easy to step on and relatively large ones such as mud can be dropped. However, fine dust and dirt could not be removed smoothly.

[0003] For this reason, recently, dust mats using bulky pile yarns mainly composed of synthetic fibers that are comfortable to step on and have excellent dust removal properties are laid at entrances of various places.
The bottom of footwear such as shoes is rubbed against bulky pile yarns protruding from the base cloth to remove mud and dust.

As the pile yarn of the dust mat, synthetic fiber yarns such as polyamide, polyester, polypropylene and acrylic are mainly used, and only the multifilament bulky yarn or only the monofilament yarn is used.
The dust mat is formed by tufting the plurality of pieces into a base cloth.

[0005] However, dust mats comprising only multifilament bulky yarns are excellent in bulkiness, crimpability, and elasticity, and are soft and comfortable to step on. It lacked rigidity for scraping off, and had little effect of dust removal. Also, a monofilament yarn is not bulky, has poor elasticity and is not comfortable to step on, and the pile yarn to be tufted has a smaller amount per unit area and is rougher than a multifilament yarn. Poor dust properties and not suitable for pile mat yarn.

[0006] The pile yarn of the dust mat as described above is
After twisting to the required thickness by adding ply twist or ply twist to the synthetic fiber yarn, it is subjected to set processing by wet heat or dry heat to give dimensional stability, bulkiness, crimpability It is piled yarn of dust mat which is rich in elasticity.

[0007]

Generally, pile cords are twisted using a direct cabler type direct twisting machine or a ring twisting machine (twisting machine) under ordinary twisting conditions. When a monofilament yarn was added to a bulky multifilament yarn to produce a twisted cord, torque was generated due to the rigidity of the monofilament yarn, and a twisted cord having a stable form could not be obtained.

[0008] That is, the torque generated by the primary twisting causes a twisted cord disturbance (snarl) during the twisting process and the twist setting process in the next process, so that the process cannot proceed to the next process smoothly, and the bulk of the finished twist set is high. The twisted cord has an unstable form, and is not suitable for use as a pile cord.

The present invention has been developed with the object of solving the above problems, and is a dust mat which is rich in bulkiness, crimpability, and elasticity, has no settling, and has excellent stiffness and excellent dust collecting properties. It is intended to provide a pile yarn for use.

[0010]

Means for Solving the Problems As a means for solving the above problems and achieving the object, in the present invention, a multifilament bulky yarn made of a synthetic fiber is twisted in advance in a direction opposite to the twisting direction. We have developed and adopted a pile yarn for dust mats, which is obtained by twisting monofilament yarns made of rigid synthetic fibers.

[0011] The present invention also relates to a multifilament multifilament yarn made of synthetic fiber, a monofilament yarn of rigid synthetic fiber twisted in the opposite direction to the twisting direction in advance, and a multifilament synthetic fiber. We have developed and adopted a pile yarn for dust mats, which is obtained by combining and knitting bulky yarns.

Further, in the present invention, in the pile yarn for dust mat constituted as described above, the multifilament bulky yarn and the monofilament yarn are polyamide fibers,
Polyester fibers, polypropylene fibers, pile yarns for dust mat and at least one of multi-filament bulk yarns of at least one selected from acrylic fibers, pile yarn and monofilament yarn for dust mats having a thickness of 500 denier to 2000 denier. Developed a pile yarn for dust mats with a thickness of 300 denier to 1500 denier,
Adopted.

The thickness of the multifilament yarn used for the pile yarn of the present invention depends on the material, but for example, when the number of filaments is several tens to several hundreds, the thickness becomes 500 denier to 2,000 denier. It is preferable that if the density is 500 denier or less, the pile loses its rigidity, the elastic recovery is poor, the feel when stepping is poor, and it is not suitable, and if it exceeds 2000 denier, it is difficult to maintain the pile shape, so it is not suitable because it is not suitable Are preferred.

The thickness of the monofilament yarn used for the pile yarn of the present invention depends on the material, but for example, when the number of filaments is one to several, 300 denier to 1500
Denier thickness is preferable, and if it is less than 300 denier, rigidity is weak and dust collecting effect is small and not suitable.
If it exceeds 00 denier, it becomes difficult to maintain the pile shape, which is not suitable.

The multi-filament yarn and the mono-filament yarn are twisted by a direct Kevlar twisting machine or a ring twisting machine, and only when the multi-filament yarn and the mono-filament yarn are twisted or after the multi-filament yarn and the mono-filament yarn are twisted. Further, multifilament yarns may be combined, and the number of twists varies depending on the configuration of the yarn to be mixed, but a range of 150 to 250 T / M is suitable.

[0016]

【Example】

(Example 1) The pile yarn 1 is a monofilament 1a formed by aligning four 325d nylon 66 single yarns into 1300d.
Was previously twisted in the Z-direction opposite to the direction of the twisting by a ring twisting machine, and a 68-filament 1300d multifilament bulky yarn 1b of nylon 66 was ply-twisted in the S-direction by a twisting machine and twisted. It is.

The pile yarn 1 is set in a range of a pile length of 12 mm and an embedding density of 36 yarns / cm ² in a base fabric 2 made by plain weaving using polypropylene fibers in a tufting machine. Rubber latex 3 on the entire back of
Was applied to obtain a mat body 4.

(Embodiment 2) The pile yarn 11 of the second embodiment 2
Is 1300d by aligning four 325d nylon 66 single yarns
The monofilament 11a was twisted in advance in the Z direction opposite to the twisting direction with a ring twisting machine, and 1300 d
Nylon 66 multifilament bulky yarn 11b
And then twisted and twisted in the Z direction with a direct cable twisting machine shown in FIG.
And the multifilament bulky yarn 11c is twisted in the S direction.

The pile yarn 11 is passed through a tufting machine, and a base fabric 22 made of plain weave using polypropylene fibers in the course of pile length 12 mm and planting density 36 yarns / cm ² .
The pile yarn 11 was implanted, and rubber latex 33 was applied to the entire back surface of the base fabric 22 to obtain the mat body 4.

(Embodiment 3) The pile yarn 21 of the third embodiment
Is a method of twisting four monofilaments 21a made of 4 polyester single yarns of 325d into 1300d and twisting them in advance in the Z direction opposite to the twisting direction with a ring twisting machine. It is obtained by twisting the yarn 21b and the polyester bulky yarn 21c in which the yarn is mixed and twisted in the Z direction with a direct cable braiding machine in the Z direction, and then the yarn is again made 350d with 70 yarns and 5 yarns are aligned in the S direction.

The pile yarn 11 is implanted in a tufting machine with a pile length of 12 mm and an embedding density of 36 yarns / cm ² in a base fabric 32 made of plain weave using polypropylene fibers in the course of the tufting. The rubber latex 43 was applied to the entire back surface to obtain the mat body 4.

(Embodiment 4) The pile yarn 31 of the fourth embodiment
Is 1300d by aligning 4 325d polypropylene single yarns
The monofilament 31a was twisted in advance in the Z-direction opposite to the twisting direction with a ring twisting machine, and 68 filaments were used for 1000 d.
And then mixed and twisted in the Z direction with a direct Kevlar twisting machine.
This is obtained by twisting the polypropylene bulky yarn 31c set to 00d with the S direction.

The pile yarn 31 is set on a plain cloth woven with plain polypropylene fibers using a weft polypropylene fiber in a tufting machine and the pile yarn 31 is implanted within a pile length of 12 mm and an embedding density of 36 threads / cm ² . A mat body 4 formed by applying rubber latex 53 on the entire back surface was obtained.

[0024]

As described above, the pile yarn for a dust mat of the present invention is obtained by twisting a monofilament yarn in a direction opposite to the twisting direction in advance and mixing it with a multifilament yarn.
It becomes a stable twisted cord without uneven twist, and it can be used as it is for dust mat pile yarn,
It is rich in bulkiness, crimpability, and elasticity, is comfortable to step on, and has a rigid monofilament that can reliably wipe off mud and dust adhering to shoe soles. In addition, since the monofilament yarn is twisted in a direction opposite to the direction of the twisting, it has a strong stiffness and can be used for a long period of time.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a pile yarn according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of pile yarns according to second, third, and fourth embodiments of the present invention.

FIG. 3 is an enlarged sectional view of FIG. 2;

FIG. 4 is a perspective view of a dust mat.

FIG. 5 is a partially enlarged sectional view of FIG. 4;

FIG. 6 is an explanatory view showing a twisting step in a direct cable braiding machine.

[Explanation of symbols]

 1,11,21,31 Pile yarn 1a, 11a, 21a, 31a Monofilament yarn 1b, 11b, 21b, 31b Multifilament yarn 1c, 11c, 21c Multifilament yarn

Claims (5)

[Claims] 1. A dust mat pile yarn obtained by mixing and twisting a synthetic monofilament yarn having rigidity which has been twisted in the direction opposite to the twisting direction in advance to a multifilament bulky yarn made of synthetic fiber. 2. A multifilament multifilament yarn composed of synthetic fibers, a monofilament yarn of rigid synthetic fibers which has been twisted in the direction opposite to the twisting direction in advance, and a synthetic multifilament bulk yarn is further twisted. Pile yarns for dust mats that are plied and mixed. 3. The multifilament bulky yarn and monofilament yarn are polyamide fiber, polyester fiber,
The pile yarn for dust mat according to claim 1 or 2, comprising at least one selected from a polypropylene fiber and an acrylic fiber. 4. The pile yarn for a dust mat according to claim 1, wherein the bulky yarn of the multifilament has a thickness of 500 denier to 2,000 denier. 5. A monofilament yarn having a denier of 300 to 150.
The pile yarn for a dust mat according to claim 1 or 2, which has a thickness of 0 denier.