JPH02139448A - Mesh-like knit fabric - Google Patents

Abstract

PURPOSE:To obtain the subject knit fabric useful for footcloth, etc., having excellent drying characteristics, readily removing of dust and having air permeability by knitting bulky synthetic multifilament yarn having crimp and uniformly arranging piercing holes having specific size to cloth face. CONSTITUTION:The aimed knit fabric is constructed with uniformly arranged plural piercing holes 2 having >=1mm thickness and vertical to the cloth face, the size of said piercing hole is 1-10mm, further, yarn 3 surrounding the piercing hole 2 is thermoplastic synthetic filament having >=400 denier and >=7% crimping elongation. Said knit fabric is preferably produced by using latent crimpable synthetic fiber multifilament and knitting mesh-like cloth having plural piercing holes, then heat-treating to sufficiently presence crimping of yarn in the cloth, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mesh-like knitted fabric made of bulky synthetic fiber filaments of 400 deniers or more, and a breathable rug using the mesh-like knitted fabric.

[Conventional technology]

Conventionally, as products called rugs such as car vents and vehicle mats, sheet-like products having multiple piles are formed using a shedding machine, a knitting machine, a tufting machine, a needle bunching machine, etc. Alternatively, in order to prevent pile threads from coming off and to provide dimensional stability and cushioning properties to the rug, synthetic resin 2, rubber,
BACKGROUND ART Rugs made of felt, jute cloth, etc. laminated in a single layer or in multiple layers are known.

[Problems to be Solved by the Invention] The conventionally known sheet-like rugs are not made to provide breathability per se, and as mentioned above, they are not made to provide ventilation and, as mentioned above, are not designed to prevent pile shedding and improve dimensional stability. Since a back layer is provided for the purpose of application, etc., it can be said that there is no air permeability at all, and therefore drying properties are poor, and it is extremely difficult to completely remove dust that has accumulated between the piles of sheet materials. This makes it impossible to maintain the long-term comfort of the rug. In particular, with regard to the occurrence of dust mites in rugs, which has recently become a social issue, there have been moves to restrict the use of rugs themselves due to the difficulty of completely removing dust, including dust mites, from rugs. This is a major problem in the rug industry.

On the other hand, attempts have been made to improve the cross-sectional shape of the single fibers of synthetic fibers used in rugs in order to make stains less noticeable on rugs.
Even such attempts do not help in removing the dirt adhering to the rug.

The present invention solves the problems of conventionally known rugs, and provides a rug-like mII that has excellent drying properties due to excellent air permeability, and can reduce the accumulation of dirt due to the excellent ease of removing dirt. The purpose is to provide something.

[Means to solve the problem]

The object of the present invention is to have a plurality of through holes having a thickness of at least one body and perpendicular to the cloth surface and arranged substantially uniformly,
The size of the through hole is 1 to 1Q mm, and the yarn surrounding the through hole is a mesh [i
Achieved by textiles.

Depending on the manner in which the rug is used, it is especially required to have rigidity (the property that it will not turn over or change its dimensions when placed on a flat surface). Even with the mesh-adjusted pigeon product having the above structure, it is possible to provide usable rigidity by appropriately selecting the structural requirements such as the thickness of the thread used. However, when a mesh-like knitted fabric with a wide range of configurations is used for rugs, a substrate having greater rigidity than the mesh 2111m fabric and a large number of through holes with a size of 1 to 25 m is placed on one side of the mesh-like knitted fabric. It is good to use it as a breathable rug obtained by joining 2.

The mesh-like knitted fabrics are woven fabrics, knitted fabrics (warp knitted fabrics, circular knitted fabrics,
It may be any flat knitted fabric. The structure of the woven or knitted fabric is such that a plurality of through holes perpendicular to the fabric surface are substantially uniformly arranged, the size of the through holes is 1 to 10 m, and the thickness is 1 mm or more. If so, any braided fibers can be used depending on the intended use. The mesh-like knitted fabric according to the present invention is usually formed without pile yarns or napped fibers. However, as long as the requirements of the present invention described above are met, pile yarns or napped fibers may further extend from the portion surrounding the through hole. The yarn type used in the mesh-like knitted fabric is not particularly limited as long as it is a thermoplastic synthetic fiber filament, and various types such as polyamide, polyester, polypropylene, etc. can be used.

The substrate is used to maintain the rigidity of the breathable rug without impairing the air permeability provided by the through holes of the mesh-like knitted fabric. Therefore, textile products, wire mesh, metal plates, wooden plates, and plastic plates can be used as long as they meet the above requirements. In the case of textile products, coating with vinyl chloride or the like may be applied in order to obtain a predetermined rigidity.

The present invention will be described in detail below with reference to the accompanying drawings showing an example of a mesh-like knitted fabric and a breathable rug of the present invention.

FIG. 1 shows an example of mesh style editing according to the present invention, FIG. 1(A) is a plan view, and FIG. 1(B) is a line i (B)-I (B) of FIG. 1(A). FIG. 1st
In the illustrated example, a plurality of diamond-shaped through holes 2 are arranged substantially perpendicularly to the cloth surface of the mesh-like knitted fabric 1 and substantially uniformly.

3 is a thread surrounding the through hole 2. The thickness of the mesh-like knitted collar l needs to be 1 mm+ or more. A thickness of 1 mm or less is too thin and is not suitable for rug use. In the example shown in FIG. 1, a diamond-shaped through hole 2 is shown. However, the shape of the hole is not particularly limited (as shown in Figure 3, it is circular,
A through hole of any shape such as an ellipse, a rectangle (including a square), or a diamond shape can be used. Furthermore, as can be easily understood by those skilled in the art, in the case of a mesh-like knitted fabric formed by a weaving process, the through holes formed do not have a geometrically accurate shape, but may have some distortion or the shape of the through holes. Naturally, there will be variations, and the term "through-hole" as used in the present invention includes all of these holes as long as they penetrate through the mesh-like knitted fabric.

The size of the through hole in the present invention means the diameter d (see Figure 2 (A)) when the through hole is substantially circular;
In the case of a rectangle or rhombus, the longer dimensions (e.g. n+, Ayu, p,) and the shorter dimensions (e.g. E2r1, .1.") shown in Figure 2 (B) to Figure 2 (D). shall be expressed as the average value of

The size of the through holes in the mesh-like knitted fabric according to the present invention is required to be 1 to 10 mm. When the thickness is less than 1 mm, air permeability is extremely reduced, quick drying properties cannot be achieved, and dust cannot be removed satisfactorily. 10m on the other hand
If it is more than m, the underside is too visible through the through hole, which reduces the aesthetic appearance of the rug, so it is not preferable, and it is also undesirable from the viewpoint of ensuring ventilation and ease of removing dust.
There is no need to do it. For example, the number of holes is 1 m in size.
In the case of 111 holes, 5 per l (-5) of the mesh-like knitted fabric
More than one is necessary to achieve the purpose of the present invention.

The thickness of the yarn that constitutes the mesh-like knitted fabric and surrounds the multiple through holes is 400 deniers or more, and the crimp elongation rate is 7%.
It is necessary that it is above. This is a necessary condition to obtain a mesh-like knitted fabric with a sense of volume. For example, if a yarn of 600 denier and a crimp rate of 20% or more is used, a mesh-like knitted fabric with a more voluminous feel can be obtained. This is preferable because it allows The crimp of the yarn having such a crimp rate can be obtained by adding synthetic fiber multifilament in post-processing, by developing crimp during filament production, or by imparting latent crimpability during filament production and then Any material that has been made crimp by heat treatment (clean water treatment) may be used.

The mesh-like knitted fabric according to the present invention can be manufactured by warp knitting, for example, as shown in FIG.

In FIG. 4, reference numerals 11 and 12 indicate threads forming the knitted fabric and surrounding the through hole 2. On the other hand, a fabric 1 as shown in FIG.
3 may be used, and in the case of Fig. 5, it is 13
The warp threads 14 are entwined with the weft threads I5 to prevent the through holes 2 from moving during use.

The mesh-like knitted fabric according to the present invention can be manufactured by any manufacturing method that can provide the above-mentioned through holes. However, there is a method of knitting and weaving a mesh-like fabric with multiple through holes using synthetic fiber multifilament with latent crimp property, and then heat-treating it to fully develop the crimp of the threads in the fabric, or a method that has already been crimped. When using a synthetic fiber multifilament having the following properties, it is preferable to knit and weave it under tension to obtain a mesh-like fabric. If such a manufacturing method is used, the plurality of threads that make up the mesh fabric will be tightened together at their intertwining points, and sufficient crimp will be developed in each free part, resulting in the same It is preferable to use yarns such as the above because a mesh-like fabric with a more voluminous feel can be obtained and the through-holes can be fixed more reliably.

Next, a breathable rug using the mesh-like knitted fabric will be explained.

FIG. 3 shows an example of a breathable rug according to the present invention, FIG. 3(A) is a plan view, and FIG. 3(B) is a line m of FIG. 3(A).
(B) - III It is a sectional view according to (B). In the breathable rug 10 shown in FIG. 3, a substrate 5 is laminated on the underside of the mesh-like knitted fabric 1 shown in FIG. The substrate 5 is provided with a large number of through holes 6 shown by broken lines in FIG. 3(A). This substrate 5 is a fabric made by coating a hand-woven fabric with vinyl chloride resin as shown in the above-mentioned FIG. A breathable rug 10 is obtained.

The size of the through hole 6 in the substrate 5 is required to be 1 to 25 mm. As is clear from FIG. 3(B), the through-hole 2 of the mesh-like textile 1 and the through-hole 6 of the substrate 5 communicate with each other at some point, for example, as shown at 8.

Therefore, the air permeability of the breathable rug as a whole is maintained, the ease of removing dust is maintained, and the substrate 5 provides a rug with rigidity and therefore dimensional stability.

If the size of the through hole 6 is less than 1 m, the rigidity and dimensional stability of the rug will improve, but it is not preferable because the breathability will be poor. This is not preferable because the shape of the part will be distorted. A more preferable size of the through hole 6 that condenses the above conditions is 2
It is ~10mm. Note that, as described above, the substrate 6 may be a plate material such as plastic with a plurality of holes provided therein.

The mesh-like knitted collar and the base material are usually bonded with an adhesive.

However, when coating a base material with a resin, it is preferable to laminate and bond mensch-like knitted fabrics during the process.

〔Example〕

The present invention will be described in detail below with reference to Examples.

Prior to the description of Examples, the definitions of technical terms used in the present invention and their measurement methods will be explained below.

◎Thickness: According to JIS L1018.

◎Crimp/Elongation Rate The yarn wound into a skein shape was heat-treated in spring water for 30 minutes without tension, then air-dried day and night, the sample length was 20cm+n or more, and an initial load (2mg/d) was applied for 30 seconds. After leaving 2
Insert a mark between 0cm. Then load (100mg/
d), read the length between marks after 30 seconds,
Calculated using the following formula.

a: Seat length (under initial load) b: Yarn length after load The number of measurements was 5 and the average was taken.

◎The size of the hole The shape of the mesh-like knitted fabric or the base material is taken by a projection method such as copying from above, and the actual shape of the hole is shown in Figures 2 (A) to 2 (D). Calculated using the method (7).The number of measurements was 10 and the average was taken.

◎Void effect rate The following test was conducted to understand the void effect of the through holes.

20g of sand from which particles with a particle size of 500μ or more have been removed using a sieve,
Sow cI in 11 square pieces, place a 30 cm square number on top of it, and use a vacuum cleaner adjusted to a wind speed of 6 m/min.
The top surface of the sample was cleaned for seconds, and the amount of sand removed was used as a measure of the void effect. The void effectiveness ratio (%) was calculated using the following formula.

Vacancy effect rate (%) - Nylon 66 BCF for carpets that can develop a crimp elongation rate of 30% when treated with clean water under no tension at BU 5 - ILL 800 d / 40 f. A mesh-like knitted fabric was obtained by knitting the fabric using the structure shown in FIG.

By subjecting this knitted fabric to a normal dyeing finishing process, crimp was sufficiently developed. The size of the through hole at this time was 3 mm.

Next, a woven fabric having the structure shown in FIG. 5 was woven using polyester 600 d multifilament, coated with ordinary soft PVC sol, and then the mensch-like knitted fabric was layered and dried. The size of the pores in the base material at this time was 5 mm. Table 1 shows the porosity efficiency and appearance of the obtained breathable rug.

Month 1 Special 1 A leno weave fabric as shown in FIG. 5 was formed using the polyamide yarn used in Example 1, and a mesh-like fabric was obtained by ordinary dyeing and finishing. The size of the fabric 71 at this time was 4 mm. At the same time, Example 1 was applied to this fabric.
It was coated with salt and pepper in the same manner as above, and used as a base material. The size of the pores in the base material at this time was 3IIlffl. Table 1 shows the void effect ratio and appearance after laminating the mesh fabric and the base material.

A mesh-like fabric with a hole size of 31n111 was woven using a polyamide yarn having a crimped elongation rate of 10% after clearing with a tip IJ 3 of 500 d. This was laminated with the base material used in Example 1,
The void effect ratio was measured and the appearance was inspected, and the results are shown in Table 1.

A fabric with a hole size of 20 mm was obtained by leno weaving with 800 denier polyester yarn having a strength of 19 mm. This fabric was coated with salt, used as a base material, and laminated onto the same mesh-like fabric as in Example 1. The void effect ratio was measured and the appearance was inspected, and the results are shown in Table 1.

Implementation 1 Using a polyamide 1000 d yarn with a crimp elongation rate of 8% after spring water treatment, a jersey texture was knitted using a flat knitting machine to obtain a mesh-like knitted fabric with a hole size of i ms. A polyethylene sheet having a thickness of 1 +++n was thermocompression bonded to this mesh fabric, and holes were randomly punched from the back side of the fabric using a needle with a diameter of 1.0 mm. Thereafter, the void effect ratio was measured and the appearance was inspected, and the results are shown in Table 1.

The mesh-like fabric used in Example 1 was adhered to a stainless wire mesh woven into a 5fffffl lattice shape, and the void effect ratio and appearance were inspected and the results are shown in Table 1.

Using the polyamide yarn used in Example 1, a mesh-like fabric with a hole size of 1Q mm was knitted using a warp knitting turret, and a base material was attached to this fabric in the same manner as in Example 1 to create a void effect. The results are shown in Table 1.

Using the polyamide thread used in Comparative Side Stop Example 1, the hole size was 0.
A fabric of 85InI11 was obtained. This was pasted on the same wire mesh as in Example 6, and the void efficiency was measured and the appearance was inspected, and the results are shown in Table 1.

This MJ Juice 1 A drawn polyamide yarn of 800 denier was knitted by the method of Example 1 to obtain a mesh-like fabric with a hole size of 5M.

Furthermore, it was laminated with a base material in the same manner as in Example 1, and the void effect ratio was measured and the appearance was inspected, and the results are shown in Table 1.

, L school motto - Polyester 300 with a crimp elongation rate of 80% after spring water treatment
A mensch-style fabric with a hole size of 1 man was obtained by knitting with a rubber structure on a flat knitting machine using yarn d. This fabric
The material was laminated with the base material in the same manner as in Example 1, and the void effect ratio was measured and the appearance was inspected, and the results are shown in Table 1.

4L comparison soil Using the same bulky yarn as in Example 1, the hole size was 15 mm.
A karami weave was created, a base material was made and laminated in the same manner as in Example 2, the void effect ratio was measured and the appearance was inspected, and the first
Shown in the table.

Comparison - [A mesh fabric made in the same manner as in Example 1 and a stainless steel wire mesh with a hole size of 301!1 ffl were glued together, and the void effect ratio was measured and the appearance was inspected, and the results are shown in Table 1. Indicated.

This teaching ■ A mesh cloth made in the same way as Example 1 was made with a thickness of 11 mm.
TlO1 polyethylene fabric was bonded under heat and 0.5 inch holes were randomly punched from the base (A side) on the back side using a nitrous punch machine. Furthermore, void effect ratio measurement and appearance inspection were performed, and the results are shown in Table 1. Indicated.

1. Tufting The same polyamide yarn as in Example 1 was tufted to obtain a commonly used loop pile carpet. At this time, the hole was not visible as far as I could see using the projection method. The void effect ratio of this sample was measured and the appearance was inspected, and the results are shown in Table 1.

Margins below [Effects of the Invention] Since the mesh-chogawa textile according to the present invention is constructed as described above, it is a rug-like knitted fabric with a voluminous feel. It has excellent properties and is easy to remove dust.

In addition, the breathable rug according to the present invention has the characteristics of the above-mentioned mesh woven fabric, and has excellent rigidity and dimensional stability due to the arrangement of the base material.As a result, it has a voluminous feel and can be used as a rug that can be easily cleaned to remove dust. Can be used.

Due to the above-mentioned valuable characteristics, the mesh fabric and breathable rug according to the present invention are not only widely used as rugs indoors and outdoors, but also as various indoor decoration materials, or in fields using through holes (for example, in the acoustic field). Can be used.

[Brief explanation of the drawing]

FIG. 1 is a diagram schematically showing an example of the structure of the mesh-like knitted fabric of the present invention, FIG. 1(A) is a plan view, and FIG.
) is the line in Figure 1 (A)! (B) -1(B) is a sectional view, FIGS. 2(A) to 2(D) are plan views illustrating the shape of the through hole, and FIG. 3 is a breathable rug of the present invention. FIG. 3(A) is a diagram schematically showing an example of the structure of
is a plan view, and FIG. 3(B) is a plan view of FIG. 3(A).
FIG. 4 is a diagram showing an example of the structure of a MEC jL 4m warp knitted fabric, and FIG. 5 is a diagram showing an example of the structure of a mesh-like fabric. ■...Mesh-like knitted fabric, 2.2a, 2b, 2c, 2d, 6.=through hole, 3.7.
... Yarn, 5 ... Base material 9.8 ... Point where through hole 2 and through hole 6 communicate. (A) (A) Diagram (B) (C) (B) (D) Diagram

Claims (1)

[Scope of Claims] 1. A plurality of through holes having a thickness of at least 1 mm and perpendicular to the fabric surface are substantially uniformly arranged, and the size of the through holes is 1 to 10 mm; There are 40 threads surrounding the through hole.
A mesh-like knitted fabric which is a thermoplastic synthetic fiber filament having a denier of 0 denier or more and a crimp elongation rate of 7% or more. 2. The mesh-like knitted fabric according to claim 1, which has greater rigidity than the mesh-like knitted fabric and has a large number of through holes having a size of 1 to 25 mm, and is joined to one side of the mesh-like knitted fabric. A breathable rug consisting of a substrate.