JPH08246287A - Multi-woven fabric for agriculture and forestry, engineering work, construction and sport - Google Patents

Abstract

PURPOSE: To obtain a multi-woven fabric suitable as a windbreaking net or a sheet for works, having excellent strength and air permeability by weaving warp or weft on wefts or warps vertically arranged in plural layers. CONSTITUTION: Warps or wefts comprising a yarn having 100-1,000 denier fineness such as a polyester or a polyamide are vertically arranged at least in two or more layers. Weft or warp is woven on the warps or the wefts and a part of the warps and/or the wefts is reinforced with an aramid yarn to form a multi-woven fabric having at least one flat surface suitable for agriculture, engineering works, construction and sport uses. Waste of a net for paper machine may be used as the multi-woven fabric.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multiple woven fabric for agricultural, forestry, civil engineering and construction sports which is excellent in strength and breathability.

[0002]

2. Description of the Related Art Conventionally, as a woven fabric for sheets, nets, etc. used for agriculture, forestry and civil engineering and construction sports, as a multiple woven fabric for agriculture, forestry and civil engineering construction, a plain woven fabric having natural fibers and synthetic fibers as warp and weft is used as a base fabric. Was used. In order to increase the strength while roughening the weave to give breathability and translucency, thickening the yarns that make up the fabric and reinforcing it with metal wires or aramid fibers are used. It was being done. For example, JP-A-58-579
No. 34 is a ventilation sheet for agricultural, forestry and civil engineering, in which the yarns that make up the base cloth are covered with plastic, and these are heat-sewn.
Japanese Utility Model Laid-Open No. 63-42058 and Japanese Utility Model Laid-Open No. 3-83042 describe a windbreak net in which a mesh structure is divided into a coarse portion and a dense portion. However, breathability and semi-transparency and strength are contradictory and it is difficult to combine both, and although various things have been devised as described above, they are generally expensive and poor in practicality. there were.

[0003]

DISCLOSURE OF THE INVENTION The present invention provides a multiple woven fabric having excellent breathability and strength, which is used for a sheet, a net, etc. for agricultural, forestry, civil engineering and construction sports.

[0004]

DISCLOSURE OF THE INVENTION As a result of intensive studies, the present inventors have found that the above problems can be solved by using a double woven or multiple woven fabric having at least one flat surface. Came to. That is, the present invention provides the following (1)
~ (6). (1) A multiple woven fabric for agriculture, forestry, civil engineering and construction sports, which comprises wefts or warps arranged in at least two layers above and below and a weft or a weft woven with the wefts. (2) The multiple woven fabric for agricultural, forestry, civil engineering and construction sports according to (1) above, wherein the multiple woven fabric is a double woven fabric. (3) A part of the weft yarn and / or the warp yarn of the multiple woven fabric is reinforced with an aramid fiber, (1)
Multiplexed fabric for agricultural, forestry, civil engineering and construction sports described. (4) The multiplex fabric for agriculture, forestry, civil engineering and construction sports according to (1) above, wherein the multiplex fabric is a windbreak net. (5) The multiplex fabric for agricultural, forestry, civil engineering and construction sports as described in (1) above, wherein the multiplex fabric is a construction sheet. (6) The multiplex fabric for agricultural, forestry, civil engineering and construction sports as described in (1) above, wherein the multiplex fabric is waste of a paper machine net.

The multiple woven fabric for agriculture, forestry, civil engineering and construction sports of the present invention is a double woven or triple or more woven monofilament or multifilament such as natural fiber or synthetic fiber. The multiple weaving secures the strength according to the specific application, and the ventilation density, translucency, and rigidity can be adjusted in a wide range by adjusting the density of the mesh. Further, by making at least one of the surfaces flat, the unevenness of the surface is eliminated and the manufacturing and handling are facilitated. The fiber used is not particularly limited, and in consideration of strength, weather resistance, flammability, etc., for example, polyester, polyamide, polypropylene, polyphenylene sulfide, polyvinyl chloride, polyvinylidene chloride, polyvinylidene fluoride, polyfluoroethylene, aramid. And so on. The thickness of the fiber to be used may be a single fiber or a single fiber having a denier of 100 denier to 10,000 denier and a wire diameter of 0.1 mm to 1.0 mm. In addition to the monofilament, a multifilament in which a resin is dipped or coated, a spun yarn, and a monofilament obtained by coating and impregnating these with a plastic can also be used.

The mesh of the woven fabric can be changed in a wide range from about 10 pieces / cm to about 200 pieces / cm depending on the specific application. As described above, the fabric has a thickness of 0.
It is ² mm to 5.0 mm and weighs 50 g / m ^{2 to 1} k
It can be changed within the range of g / m ² . Regarding the thickness and weight of the woven fabric, it is possible to design the fabric to be thick and heavy in one part and thin and light in another part. In this case, it is manufactured by changing the weaving method and the yarn to be used depending on the part. The size to be woven is not particularly limited, and it may be cut into a required size before use. The woven fabric of the present invention is a so-called multiple weave, which is a double weave or more, and the weave design is a layered design. For example, warp double weave,
A weft double weave, a double weave, and a triple or more multiple weave are mentioned. These are wefts or warps arranged in at least two layers above and below, and a warp or weft woven with the wefts or warps. is there. 1 to 7 show some of the typical overlapping structures as specific examples. In FIGS. 1 to 7, circles represent warps or wefts, and horizontal lines represent wefts or warps. Of course, the multiple weave used in the present invention is not limited to these, but a weaving method such as a bonded double weave or a wind-woven weave in which irregularities appear on the surface is used by calendering the surface into a flat surface. . FIG. 7 shows a needle felt type multiple weave. As described above, the multiple weave in which at least one surface in the present invention is a plane,
Even in the case of multiple weave, the surface is flat as in plain weave, or even if there are irregularities, it is flattened by calender roll treatment, various kinds of woven fabrics woven with flat yarns.

The fabric as the base material of the fabric for agricultural, forestry, civil engineering and construction sports of the present invention is manufactured by the above-mentioned method,
Similar net sheet materials may be diverted. For example, a net for a paper machine has a flat surface and a width of about 2 to 10 m.
With the above, the length is from 10m to 100m,
Since it is the current situation that a large amount of meshes, from coarse ones to fine ones, are discarded, it is meaningful not only in terms of performance but also in effective utilization of waste when it is diverted to the present invention. Will be things. Since at least one surface of the woven fabric of the present invention is flat, the multiple weaving method conventionally used can be diverted as it is.
In addition, the flat surface has uniform strength, is suitable for various applications and is easy to handle. There is no particular limitation for agricultural, forestry, civil engineering and construction sports which is an application of the present invention, and when sheets and nets are actually used in these fields, the multi-woven fabric of the present invention can be used. The specific uses are illustrated below.

(1) Agricultural and forestry windproof nets, insect-proof / bird-proof nets, sand-proof nets, bags for harvesting / shipping, ginseng, etc. (2) Earth retaining sheets for civil engineering, filters for drainage works, windbreak nets, slope protection sheets, sound insulation walls, ground improvement sheets, sandproof nets, sandbags, etc. (3) For construction Falling object prevention net, soundproof fence, boundary fence,
Base cloth for asphalt roofing, etc. (4) Sports windbreak nets, fences for tennis court boundaries, etc.

When used in these applications, the multi-woven net or sheet has strength and rigidity of the net or sheet itself as compared with the conventional ones, and therefore, the number of columns and fixing ropes for supporting them is small. . In addition, the ventilation and windproof properties can be optimized by adjusting the mesh. The fabric can be colorless, but it can also be colored or patterned in any desired color. The base material may be a woven plastic fiber containing a pigment, or the woven net may be colored with a dye or a paint may be applied. It is also possible to print various road signs and road information. Further, by coloring with a fluorescent dye or a fluorescent paint, it is possible to facilitate visual observation at night. In addition to the pigment, other additives such as a stabilizer for increasing weather resistance can be added to the plastic fiber.

[0010]

As described above, according to the present invention, there is provided a multiple woven fabric having excellent air permeability and strength, which is used for a sheet, a net or the like for agriculture, forestry and civil engineering.

[Brief description of drawings]

FIG. 1 is a schematic view showing an example of a multiple woven fabric used in the present invention,

FIG. 2 is a schematic view showing an example of another multiplex fabric used in the present invention,

FIG. 3 is a schematic view showing an example of another multiplex fabric used in the present invention,

FIG. 4 is a schematic view showing an example of another multiplex fabric used in the present invention,

FIG. 5 is a schematic diagram showing an example of another multiplex fabric used in the present invention,

FIG. 6 is a schematic view showing an example of another multiplex fabric used in the present invention,

FIG. 7 is a schematic view showing an example of another multiplex fabric used in the present invention.

Claims (6)

[Claims] 1. A multi-layer fabric for agricultural, forestry, civil engineering, and construction sports, in which at least one surface of the wefts or warps arranged in at least two layers above and below and the wefts or the wefts interwoven with the warps is flat. 2. The multiple woven fabric for agricultural, forestry, civil engineering and construction sports according to claim 1, wherein the multiple woven fabric is a double woven fabric. 3. The multiplex fabric for agricultural, forestry, civil engineering and construction sports according to claim 1, wherein a part of the weft and / or the warp of the multiplex fabric is reinforced with aramid fibers. 4. The multiplex fabric for agricultural, forestry, civil engineering and construction sports according to claim 1, wherein the multiplex fabric is a windbreak net. 5. The multiplex fabric for agriculture, forestry, civil engineering and construction sports according to claim 1, wherein the multiplex fabric is a construction sheet. 6. The multiplex fabric for agriculture, forestry, civil engineering and construction sports according to claim 1, wherein the multiplex fabric is waste from a net for a paper machine.