KR102356819B1 - A heat-insulation net - Google Patents

Abstract

The present invention relates to a heat shield net and, more specifically, to a heat shield net that provides a heat-shielding function by blocking or controlling heat generated by sunlight and external heat. To this end, the present invention provides a heat shield net, produced by weaving a film weft yarn that is formed of PE and sunscreen, and a monofilament warp yarn, wherein the mixing ratio of PE to sunscreen is 90:10 to 98:2.

Description

A HEAT-INSULATION NET

The present invention relates to a heat shielding net, which blocks or regulates heat generated by sunlight and external heat to express a heat shielding function.

In general, a shading net that blocks a portion of sunlight is provided and used to implement an optimized plant growth environment by blocking plant cultivation or solar radiation, or to prevent heat stroke of outdoor workers.

However, most of these shading nets are made of black series that absorbs and blocks the reflected heat of solar radiation, which absorbs or blocks visible light necessary for photosynthesis of plants, causing reduced or poor growth of plants, or darkening the workplace. Most of them have low efficiency and high probability of safety accidents, and the weaving structure is very complicated, and the tensile strength is low, so the breakage is also very high.

Such a conventional light-shielding network had many insufficient parts to exhibit the light-shielding or heat-shielding effect of the installation area simply through the light-shielding method.

For example, when sunlight is strongly irradiated, it is also true that there is a problem in that the temperature rises through heat absorption by itself, even if it is possible to block the light.

Despite these problems, heat shielding means for blocking heat are a very scarce reality, and heat shielding films used for agriculture are proposed, or expensive heat shielding films attached to windows of automobiles and houses are used, but some are used. Since it is proposed in the form of a large-scale facility, the cost burden is high and economic feasibility is not suitable.

Accordingly, there is an urgent need to develop a heat shield that can be installed outdoors or in facilities.

Republic of Korea Patent Publication No. 10-2015-0140975 (Agricultural heat shielding film, published on December 17, 2015) Republic of Korea Patent Publication No. 10-2017-0088756 (Light-shielding net for ginseng fields, published on August 02, 2017) Republic of Korea Patent Registration No. 10-2071226 (light shielding net, registered on January 22, 2020)

An object of the present invention is to provide a heat shielding mesh having excellent heat shielding effect and high tensile strength in response to the technical development requirements as described above.

Another object of the present invention is to provide a heat shielding mesh having a simple weaving structure and excellent productivity.

In order to achieve the object of the present invention, to provide a heat shielding net, characterized in that it is completed by weaving it with a weft film and warp monofilament formed in a mixing ratio of 98% to 90% by weight of PE and 2% to 10% by weight of a UV blocker. do.

At this time, the warp portion made of a plurality of warp yarns made of the same material as above and a weft portion corresponding thereto are woven and the warp portion is composed of 3 to 15 warp yarns, and the weft yarn is folded in two or three layers to be woven. do.

In addition, when the weft film and the warp monofilament are mixed with PE and UV blocking agent, pigments are added according to various uses to enable the expression of various colors.

In addition, the first weft yarn is located below the 1st warp, and is woven in a form located above the 2nd and 3rd warps, and the second weft located next to the lower side of the first weft is located above the 1st warp, It is characterized in that the basic pattern is to be woven in a form located below the second and third warp yarns, the interval between the warp portions is maintained at 5mm to 30mm, and the weft yarn is formed in a film shape with a width of 2mm to 5mm It will provide a heat shielding network.

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By providing the heat shielding mesh of the present invention, the heat shielding effect is excellent, the maintenance cost is relatively low due to the strong tensile strength, and the weaving structure is simple, so that the productivity is excellent.

1 is an exemplary view showing a weave structure of a heat shielding mesh according to the present invention.
2 and 3 are side cross-sectional views showing the weave structure of the heat shielding mesh according to the present invention.
4 is a photograph showing the weave structure of the heat shielding net according to the present invention.
5 to 10 are photographs showing results according to the heat shielding test of the heat shielding mesh of the present invention.

Hereinafter, it will be described in detail with reference to the drawings so that those of ordinary skill in the art related to the heat shielding network of the present invention can easily implement it.

1 is an exemplary view showing the weave structure of the heat shielding mesh according to the present invention, Figures 2 and 3 are side cross-sectional views for showing the weave structure of the heat shielding mesh according to the present invention.

1 to 3, the heat-shielding mesh of the present invention is a heat-shielding mesh for blocking or subtracting a portion of sunlight or radiant heat to block heat.

To this end, the material of the weft part and the warp part constituting the heat shielding net is woven with a weft film and a warp mono thread formed at a mixing ratio of 98% to 90% by weight of PE and 2% to 10% by weight of the UV blocker, respectively. .

Here, in manufacturing the weft film and warp mono-yarn applied to the weft and warp parts, when the UV blocking agent is mixed in an amount of less than 2% by weight, the heat shielding effect is reduced, and when it is mixed in more than 10% by weight, the weaving defect rate increases. will occur

Here, when the weft film and the warp monofilament are completed by mixing PE and UV blocking agent, pigments may be further added to express various colors.

This is to enable the expression of various colors to suit the various needs and uses of the installation site, and a representative white color system is applied, but is not limited thereto.

The weft part and the warp part made of the above material are each composed of a plurality of weft yarns and a plurality of warps corresponding thereto and are woven.

In more detail, the first weft yarn is located below the 1st warp, and the basic pattern is that the first weft is woven in a form located above the 2nd and 3rd warps, and is located on the lower side of the 4th warp located immediately next to it. It is woven in the form of being located above the 5th and 6th warp yarns.

In addition, the second weft located next to the lower side of the first weft is located above the first warp, and the basic pattern is that the second weft yarn is located below the second and third warp yarns, and the fourth weft yarn located next It is located on the upper side, and is woven in a form located above the 5th and 6th warp yarns.

It is continuously woven through such a weaving method.

In this case, as described above, the inclined portion is woven with three basic patterns, but in order to increase the binding strength between the warp and the weft yarn according to the weaving, it is preferable to have six warp portions, but the present invention is not limited thereto.

Here, the weaving method as described above is described as an example of 6 warps per weft, but is not limited thereto, and the warp forming the warp is preferably composed of 3 to 15 warps.

In addition, the interval between the inclined portions is preferably maintained at 5 mm to 30 mm, where the interval between the inclined portions refers to the interval between the first inclination of the inclined portion and the first inclination of another adjacent inclined portion.

In addition, the weft yarn is formed in a film shape constituting a width of 2mm to 5mm, and is completed by folding 2 to 3 layers in the width direction of the film shape.

At this time, the folding of the weft yarn in 2 to 3 layers is to apply the heat shielding rate required at the installation site through control of the density and thickness of the weft yarn to be woven.

For example, the heat shielding rate is higher when folded in 3 layers than when folded in 2 layers, and can be applied according to various heat shielding ratios according to the above-described mixing ratio of the UV blocker and folding of the weft film. it is for

This is to make it possible to manufacture in response to the various heat shielding rates required at the installation site.

The heat shielding mesh of the present invention may be woven according to another embodiment.

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Hereinafter, three types of heat shielding nets (Examples 1 to 3) according to the practice of the present invention, a conventional light shielding net (Comparative Example 1), and a weaving method according to an embodiment of the present invention are applied, but a light shielding net having a different composition ratio of UV blockers (comparison) For Example 2), test the results of the ultraviolet (UV) blocking rate test, thermal insulation temperature measurement, and tensile strength test in the following way.

1. UV protection rate (%) test

KS K 0850:2014

UV-A (315-400nm)

UV-B (290-315 nm)

Test equipment: UV Transmittance Analyzer

Light Source: Xenon Arc

2. Measurement of thermal insulation temperature (℃)

thermal imaging camera

3. Tensile strength (N) test

KS K 0520:2015 Grab method (CRE Type)

Warp direction and weft direction

Comparative Example 1

One end of the film yarn is merged with the mono yarn to form a loop by sending it to the rear of the pre-formed loop, the mono and film yarns are separated, and the mono yarn is combined with other supplied film yarns to form another loop after the pre-formed loop, and the film yarn is moved to the next course and the other A conventional black shading net that is woven and sold in a form where the film yarn moves to the position where the loop is formed first and combines with the mono yarn to form another loop and then moves the course to form a loop.

Comparative Example 2

The warp part consists of 6 warp yarns, which are made by mixing 99 wt% of PE with 1 wt% of a UV blocker, and 12 weft yarns made of the same material as warp monofilament, and the first weft yarn is 1 at a density of 1 inch. The upper side of the No. 2 warp, the lower side of the 2nd and 3rd warp, the upper side of the 4th warp and the lower side of the 5th and 6th warp yarns, and the second weft yarn is located on the lower side of the 1st warp, the 2nd warp and the 3rd warp. The upper side, the lower side of the 4th warp, and the upper side of the 5th and 6th warps are continuously woven so that the spacing is 10mm, and the weft yarn is 4mm A heat shield mesh woven by folding one PE film that maintains the width in the width direction to make two layers.

Example 1

The warp part consists of 6 warp yarns, which are made by mixing 2 wt% of a UV blocker with 98 wt% of PE, and 12 weft yarns made of the same material as warp monofilament, and the first weft is 1 The upper side of the No. 2 warp, the lower side of the 2nd and 3rd warp, the upper side of the 4th warp and the lower side of the 5th and 6th warp yarns, and the second weft yarn is located on the lower side of the 1st warp, the 2nd warp and the 3rd warp. The upper side, the lower side of the 4th warp, and the upper side of the 5th and 6th warps are continuously woven so that the spacing is 10mm, and the weft yarn is 4mm A heat shield mesh woven by folding one PE film that maintains the width in the width direction to make two layers.

Example 2

The warp part consisting of 6 warp monofilaments made by mixing 6 wt% of a UV blocker with 94 wt% of PE, and 12 weft yarns made of the same material as warp monofilament, the first weft yarn at a density of 1 inch The upper side of the No. 2 warp, the lower side of the 2nd and 3rd warp, the upper side of the 4th warp and the lower side of the 5th and 6th warp yarns, and the second weft yarn is located on the lower side of the 1st warp, the 2nd warp and the 3rd warp. The upper side, the lower side of the 4th warp, and the upper side of the 5th and 6th warps are continuously woven so that the spacing is 10mm, and the weft yarn is 4mm A heat shield mesh woven by folding one PE film that maintains the width in the width direction to make two layers.

Example 3

The warp section consisting of 6 warp yarns, which is made by mixing 90 wt% of PE with 10 wt% of a UV blocker, and 12 weft yarns made of the same material as warp monofilament, the first weft yarn with a density of 1 The upper side of the No. 2 warp, the lower side of the 2nd and 3rd warp, the upper side of the 4th warp and the lower side of the 5th and 6th warp yarns, and the second weft yarn is located on the lower side of the 1st warp, the 2nd warp and the 3rd warp. The upper side, the lower side of the 4th warp, and the upper side of the 5th and 6th warps are continuously woven so that the spacing is 10mm, and the weft yarn is 4mm A heat shield mesh woven by folding one PE film that maintains the width in the width direction to make two layers.

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As described above, the conventional light shielding nets (Comparative Examples 1 and 2) were used as Samples 1 and 2, and Samples 3 to 5 according to Examples 1 to 3 according to the present invention were used in the ultraviolet (UV) blocking rate and heat shielding temperature measurement test. The following results were measured as follows.

sample 1 sample 2 sample 3 sample 4 sample 5
UV-A (315-400nm) 35.5% 59.6% 73.2% 75.0% 77.8%
UV-B (290-315 nm) 32.2% 55% 69.0% 70.7% 72.1%
insulation temperature
(outside air 24℃) 35.2℃ 20.9℃ 16.6℃ 15.6℃ 14.9℃
The tensile strength
inclined direction 280N 451N 450N 452N 451N
The tensile strength
weft direction 504N 1,098N 1,100N 1,102N 1,101N

As described above, in the comparative tests for Comparative Examples and Examples, it was investigated to be superior to the Example woven according to the present invention and the Comparative Example for the conventional light shielding net in the UV blocking rate test, heat shielding temperature measurement, and tensile strength test items.

In addition, in Comparative Example 2, which was woven in the same weaving method as the present invention, but contained a small amount of UV blocking agent, the UV blocking rate and heat shielding temperature were also investigated to be superior to the Example according to the present invention.

Accordingly, it is possible to provide a heat shielding net that can respond to various field requirements by optimizing factors that directly affect heat shielding, such as blocking rate and heat shielding temperature for UV rays.

It is also possible to provide a heat-shielding net that can maintain a longer service life than a conventional light-shielding net because of its excellent tensile strength.

1: inclined part
2: weft part

Claims (11)

It relates to a heat shielding net woven with a warp mono-sa and a weft film formed with a width of 2 mm to 5 mm with the same material as the warp monosa and the warp mono-sa in which 2 wt% to 10 wt% of a UV blocker is mixed with 98 wt% to 90 wt% of PE,
In order to strengthen the winding tensile strength, a plurality of inclined portions composed of 3 to 15 warp monofilaments are formed at intervals of 5mm to 30mm,
Accordingly, the weft film is folded and woven in 2 or 3 layers to control the heat shielding rate.
The first weft yarn is located below the 1st warp, and is woven in such a way that it is located above the 2nd and 3rd warp yarns,
Heat shielding mesh, characterized in that the second weft yarn is woven in the form of being located above the 1st warp and located below the 2nd and 3rd warp yarns as a basic pattern.
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When the weft film and warp monofilament are mixed with PE and UV blocking agent, pigments are added to express various colors.
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Images