JP3085103U - Highly ventilated insect and dustproof shielding net - Google Patents

Abstract

(57) [Problem] To provide a method for producing a net having high insect repellency, dust resistance and high blindness without impairing air permeability. SOLUTION: In a knitted or woven fabric composed of monofilament or multifilament, a warp yarn and a weft yarn are combined with a thick yarn (reinforcing fiber) and a thin yarn (densified fiber) at a fixed ratio and repeated. Or, by knitting this into a check, the gap is subdivided without impairing the air permeability while maintaining the strength while maintaining the strength, and a highly breathable insect and dustproof net,
Light-shielding nets, partition nets, blind nets, roll curtain nets, especially sash nets, roll nets, etc. You can make high density nets like never before.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a method for manufacturing a shield net that can prevent pests and dust from entering a room with an insect-proof dust-proof net and has good ventilation.

[0002]

[Prior art]

 Insect repellent nets are installed on windows such as sashes and ventilation openings to prevent the invasion of pests, but have not yet been able to prevent the entry of microscopic insects. The problem is that when the mesh is made finer in order to maintain the air permeability due to the mesh roughness of the conventional net, the air permeability almost disappears.

[0003] In addition, the insect-proof net having air permeability has a drawback that the interior can be seen from the outside, and various barriers are provided, thereby impairing the original purpose of the net to allow plenty of outside air to enter the interior.

[0004]

[Problems to be solved by the invention]

 In conventional insect-control nets, warp and weft yarns use the same thickness, so simply increasing the density simply reduces the voids extremely, increasing the area ratio occupied by the yarn, which is very small. Even if the pests do not enter, the air permeability is almost lost and the purpose of the net is lost. The purpose is to solve such problems.

[0005] Conventional insect repellent nets have the drawback that they lack light-shielding properties and that the interior of the net is easily visible from the outside, and the interior and exterior of the net have different colors. Various measures have been taken, such as applying various compounds, but no solution has yet been found. In addition, in order to perform such processing, various chlorine-containing compounds are often used, which is likely to cause the generation of dioxin. We will provide nets that solve these problems.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention has a structure in which reinforcing fibers (thick yarns) and high-density fibers (fine yarns) are organized and knitted at intervals of several lines in a warp yarn. Has been adopted.

[0007] The net has a reinforcing fiber (thick yarn) of 50d to 600d. When further strength is required, twisting is applied to a yarn of about 50T / M to 1500T / M to give the necessary strength. Density of fibers (thin yarn) 15d to 100d. A vertical cloth, a horizontal weft, or a gap of one of them, with a density of 0.1 mm to 5 mm, is used to prevent the penetration of small insects from the outside. Insect repellent and dust proofing effects are imparted while maintaining the properties.

[0008] Reinforcing fibers (thick yarns) and high-density fibers (thin yarns) are formed by a glossy yarn, a matte yarn, or a woven fabric, or a physical method that makes the room invisible from the outside by irregular reflection due to a knitting structure. By exhibiting the line effect, it is possible to provide an attractive insect- and dust-proof net that does not contain a dioxin-generating compound.

[0009] Further, by incorporating a resin core to which a reflective or irregularly reflective substance is added, the blind effect is emphasized, the interior of the room can be made visible from the outside, and a net with a high shielding property can be provided. Become.

[0010]

[Embodiment of the invention]

 Hereinafter, an embodiment of a method for manufacturing an insect-proof dust-proof shielding net according to the present invention will be described below.

[0011] The inventors of the present invention have made a knitted woven fabric composed of polyester multifilament, in a warp yarn, a weft yarn, and a structure, a thick reinforcing fiber yarn and a thin high-density fiber yarn are arranged in a check pattern at intervals of several lines. It is knitted and woven, and the thick yarn is 50d to 600d, and the density is 2 to 30 per 2.5cm density. Therefore, the net should be knitted with a density of 0.1 mm to 5 mm to prevent the invasion of small insects from outside. I realized that I could do it.

[0012] Furthermore, thick yarns are knitted by knitting and the like, and thin yarns are given a diffuse reflection effect by a knitting structure by wool processing or the like, and are further coated with a resin to which a diffused reflection material due to a difference in the refractive index is added. The effect was emphasized, and it became clear that the interior became less visible from outside.

【Example】

 Hereinafter, a specific example of manufacturing an insect-proof and dust-proof shielding net having high air permeability will be described.

[First Embodiment] A polyester multifilament yarn is used. A warp yarn is a thick reinforcing fiber in which three 75d yarns are drawn together and three warp yarns are used as 10 warp yarns per 2.5 cm. 1. Four 75d fibers were organized one by one as the densified fiber, and this was repeated one time. The vertical density per 5 cm was 50. For the weft yarn, three 75d thick reinforcing fibers are drawn together to make 10 yarns per 2.5cm, and between the yarns, four 75d-wool-processed yarns are used as thin, high-density fibers. The woven fabric was formed by weaving in a vertical / horizontal check pattern with a structure in which the length was set at 50 per 2.5 cm by repeating this. The greige fabric was sufficiently shrunk by scouring-high-pressure dyeing and high-temperature washing, and set at 200 ° C. to a predetermined width with a finishing machine. The net was made by bending both the warp and weft yarns for thermoplastic fibers to maintain a gap of 0.3 mm, and adding a small amount of polyester resin with different reflectivity to self-crosslinking polyester resin.

Second Embodiment Polyester multifilament yarn is used as a thick reinforcing fiber, and a 75d chain knitting is used to obtain a density of 18 yarns per 2.5 cm. On the other hand, weft yarns are made of three 75d thick reinforcing fibers and 10 yarns per 2.5cm, and the gap between the yarns is 2.2mm. This is repeated one time and the total weft density per 2.5 cm is set to 50, so that the weft yarn gap is 0.1 mm. A tissue greige of 35 mm was made. The greige is contracted sufficiently by scouring, high-pressure dyeing and high-temperature washing. Because of the thermoplastic fiber, both the warp and weft are bent to form a gap of 0.8 mm and 0.3 mm. The gap was 0.37 mm. Furthermore, by adding a small amount of resin with different reflectivity to the self-bridged polyester resin, we made this net with a blind effect without significantly reducing the air permeability.

FIGS. 1 and 2 show nets formed based on the first and second embodiments, respectively.

[Table 1]

[0016] Table 1 shows the insect repellent effect, air permeability effect and blind effect of the net manufactured by the present invention, and a result table showing the insect repellent effect, air permeability effect and blind effect of the net manufactured by the present invention. is there.

The test method and the effect evaluation are as follows.

The insect repellent effect was tested for outdoor tests. The timing and conditions of the large number of black flies and planthoppers flying beforehand were checked. At the beginning of September, a box was set up on a hill surrounded by paddy fields, and the temperature was set at 30 ° C and the humidity was adjusted. An invasion test was carried out from a screen door to the black leaf flies and planthoppers from 16:00 to 22:00 on about 45 to 60% and a day of continuous fine weather for 5 days. The wind speed on the day was measured, and the air permeability was also measured. The measurement was performed three days, that is, three times. The size of the box was 8 m3 (vertical, horizontal, 2m in height), and the walls were painted white to reflect light rays to make it easy to attract insects and to easily count the number of insects. Then, the side surface 2m × 2m of the box was covered with the test product net, and the opposing surface was also covered with the same net, and two 40W × 4 white fluorescent lamps were turned on at the center of the ceiling, and the number of insect infestations after 6 hours had elapsed was measured. A total of five units were installed, one at each level, so that the wind could pass straight through the box in the direction of the wind on the day.

The air permeability was also measured in the box of this test at the same time, and the average wind speed for 3 minutes was set between 19:00 and 20:00 after the evening calm. Box without net and first and second embodiments. Conventionally, two types of commercially available nets were compared with each other by sealing the tape on two opposing surfaces of each box with no gap. In addition, a measuring device measures with a Shibata ISA-15S type hot-wire anemometer.

The blindness was compared with each net based on the average value from a light source which is relatively close to human luminosity, with no net as 100 based on the measured luminous intensity. In addition, the visibility test conducted by humans was performed by measuring the amount of light and measuring the visibility with 10 humans (5 males and 5 females) while looking inside the box at a distance of 5 m outside the box. The evaluation was performed on a 4-level scale from A to D, where D was the value without the mark. As is clear from the table, the net of the first embodiment was the best, and then the net of the second embodiment, which was higher than the conventional market product.

Insect repellency is shown in Table 1 in the number of insects, such as the green fly, planthopper and the like, which were attracted by the fluorescent light source from dusk to night and flew, passed through the net of the test box, and penetrated. . As is clear from the table, the effect was recognized in the order of high-density net, where the gaps between the fibers of the net were narrow. First Example = Second Example> Commercially available product 24 mesh> Commercially available product 18 mesh, the higher the net density, the lower the insect penetration rate. The second embodiment has no intrusion at all and has a good result.

[0022]

[Effect of the invention]

 As described above, according to the present invention, it is possible to produce an insect-proof, dust-proof, and shielding net having excellent air permeability, and this net has high utility and is attractive, for example, a shading net and a partition net. It is possible to manufacture a net for a breathable net, a net for a blind, a roll curtain net, a roll net, particularly a net for a sash screen.

[Brief description of the drawings]

FIG. 1 illustrates a net structure manufactured according to the first embodiment.

FIG. 2 illustrates a net structure manufactured according to the second embodiment.

[Explanation of symbols]

SF Reinforcement fiber (thick yarn) CF Reinforcement fiber chain knitting MF Densified fiber (fine thread) WF Densified fiber (fine thread, glossy thread, matte thread, processed thread)

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Shingo Mitani 2-2-18 Kameshima, Nakamura-ku, Nagoya

Claims (3)

[Utility model registration claims] 1. A knitted or woven synthetic fiber net, a monofilament or multifilament warp yarn.
In the structure, reinforcing fibers and high-density fibers are arranged and knitted at repeat intervals of several lines, and are knitted and knitted in at least one of the length and the width, or both, and a thick yarn of the reinforcing fibers Is set to 50d to 600d. When more strength is required, several pieces are aligned or twisted or twisted to give the required strength. The density of the reinforcing fibers is in the range of 2 to 30 per 2.5 cm, and the high-density fiber thin yarns 15d to 100d are organized between the yarns of the reinforcing fibers in a unit of 2 to 25 repeats. A net having a density of from 0.1 mm to 5 mm is knitted to prevent invasion of small insects from the outside and impart an insect repellent and dustproof effect. 2. A reinforcing fiber yarn and a high-density fiber yarn, a glossy yarn, a matte yarn, etc., are combined in a repeat arrangement or a check arrangement every several lines in one or both of a vertical direction and a horizontal direction, Alternatively, an insect-proof dust-proof and shielding net characterized by being subjected to a wool process and exhibiting an effect that the interior is hardly seen from the outside due to reflection and irregular reflection while maintaining air permeability. 3. A knitted woven fabric in which the reinforcing fiber yarns and high-density fibers are combined in a repeat arrangement or a check arrangement every few fibers, and furthermore, an inorganic material is used to make the room invisible from the outside.
Insect repellent dust and dust shielding nets characterized by applying a reflective agent, irregularly reflective agent, and a compound with a different refractive index to increase the blind effect and make it difficult for pests to enter due to changes in light rays.