KR20210030307A - Fabrics for screen - Google Patents

Abstract

The present invention relates to a screen fabric having a water-repellent function. In the configuration, the present invention uses a yarn obtained by twisting or braiding a plurality of filamentous yarns (f) as warp yarns (1a) and weft yarns (1b) to weave a net-type fabric, and the front and back surfaces of the net-type fabric are By applying the sap or immersing the woven net-type fabric in the water-repellent solution to give a water-repellent coating, and then heat-treating it at 180°C to 200°C through a tenter or heat treatment device, a water repellent agent is applied or In the heat treatment process in the impregnated state, the contact portion of each of the plurality of filament yarns (f) is melted to form a monofilament, and the abutting portion of the weft yarn (1b) and the warp yarn (1a) is also melted and integrated, thereby providing a water repellent function and composing an insect repellent mesh fabric with excellent antifouling function and durability. The present invention configured in this way does not cause distortion or deformation of the tissue composed of the weft yarn 1b and the warp yarn (1a) even when an impact from the outside is applied or carelessness occurs during handling, and is resistant to UV rays and heat, so that it has a long lifespan, when installed and used on windows and doors, snow or rainwater does not flow into the room due to its excellent water repellency, so reliability and stability are excellent, and pollution prevention is also performed smoothly.

Description

Insect screen fabric with water-repellent function{Fabrics for screen}

In the present invention, when weaving a net-type fabric used as a screen fabric, a number of filament yarns are woven by twisting or plying yarns as weft and warp, and water-repellent treatment of the net-type fabric and then heat treatment. It has a water-repellent function that prevents the inflow of snow or rainwater into the interior due to its excellent water-repellent power in rainy weather and minimizes contamination even if it is used for a long time. It relates to a screen fabric.

When ventilating by opening a window, a screen frame made of a mesh structure is mounted on a square frame having the same size as a window to prevent harmful pests such as mosquitoes and flies from entering the room, and then it is installed on the window frame.

The insect repellent fabric used for the window frame is made of metal yarns made of materials such as iron, aluminum, stainless steel, etc., with a diameter of 0.25 to 0.27 mm, and is composed of alternatingly intersecting metal yarns at regular intervals in the horizontal and vertical directions, or It is composed of synthetic resin yarns (PP or PE, etc.) made of mono yarns with a diameter of 0.1 to 0.27 mm, and weaving them alternately at regular intervals in the horizontal and vertical directions.

Among the above metal screen fabrics, the screen fabric woven with ferrous metal has the advantage of being easy to install on a square frame of the same size as a window, but it has a short lifespan due to rapid oxidation and corrosion, and a screen fabric made of aluminum. Although it has the advantage of being light and easy to install on a square frame, its strength is weak, so it has a flaw that the net breaks well during the working process.The stainless steel insect repellent fabric has strong strength and can be used for a long time due to low oxidation and corrosion. However, it has a drawback that is difficult to install due to its strong elasticity and heavy weight.

In order to solve the above problems, the insect repellent fabric of Korean Utility Model Registration Application No. 2000-0030610 was developed. The above-described design of the pre-application is to woven the insect repellent fabric using the weft yarn as metal yarn and the warp yarn as synthetic resin yarn.This is difficult to install due to the elastic change of the weft and warp when installing it on the square frame for installing the insect screen, and the contractors avoid construction. In addition, when friction is applied to the synthetic resin yarn constituting the insect-repellent net fabric, the synthetic resin yarn slides and twists, so that the size of the mesh hole is deformed.

In addition, the synthetic resin yarn, PP material or PE material, is light and has no oxidation and corrosion, but as shown in Fig. 1, the warp (1a') and weft (1b') are woven alternately with each other, so the gap (W ) Is formed in the form of a simple grid, so if an impact or physical pressure is applied to the insect repellent fabric (1') during use, the warp (1a') and the weft (1b') slide together and the position is deformed or clumped. There arises a problem in that the mesh hole cannot be uniformly and accurately maintained, such as being made.

In addition, among the conventional insect repellent fabrics, Korean Utility Model Registration No. 02411871 "Glass fiber insect repellent fabric" (Patent Document 1) using a resin coated on the outside of a core material made of glass fiber or using a metal insect repellent net fabric is' In composing a screen fabric woven with warp and weft, warp (1a') and weft (1b') are composed of resin-impregnated glass fiber yarns impregnated with resin from the surface of the single fiber bundle yarn of glass fiber to the center, and warp ( 1a') and the weft (1b') are melt-bonded in a woven state, and a glass fiber insect repellent net' is proposed.

However, since such glass fiber cannot be recycled or regenerated, it can lead to problems such as environmental pollution, and has a problem that the price is inevitably expensive. Since the weft and warp are distorted and deformed, the defect rate is high due to the deformation of the tissue density, and the insect repellent effect is greatly reduced, and the manufacturing cost is also high.

In addition, there is also known a technology related to Korean Patent Application Publication No. 10-2003-0086498,'a device for laminating an OPP film on an outdoor Pallet foamed fabric', which is made by heating and pressing a polyethylene film on one side of the PE foamed fabric. It is laminated, and printed or transferred to OPP film, PET film, LDPE film, etc. on the other side, and a separate PE resin coated film is placed on the bonding area to heat the PE coating area, which is the bonding area, and use an embossing roller It is a technology to manufacture outdoor pallet fabric by laminating.

However, the above-described technology has problems such as a complicated and cumbersome manufacturing process, which inevitably increases manufacturing cost and is inferior in practicality.

In addition, the conventional insect screen has a problem in that snow or rainwater easily enters the room during the use process, and dust or foreign matter easily adheres to the surface of the net, and once dust or foreign matter adheres, it does not easily fall off, causing severe contamination. There was also a problem to be done.

Republic of Korea Utility Model Registration No. 0241871 "Glass Fiber Insect Screen Fabric"

The present invention has been developed to solve the above problems, and in particular, when weaving a screen fabric, a net-type fabric is woven by using a yarn formed by twisting or braiding a plurality of filament yarns as warp and weft, and woven net-type By applying or impregnating a water-repellent agent on the front and back of the fabric and then heat-treating through a tenter or heat treatment device, a number of filament yarns are fused to each other by heat to form a very strong and tough mesh structure, and contamination of the insect-repellent net fabric due to its excellent water-repellent effect. Prevention and indoor inflow of snow or rainwater is prevented, and it is also effective in preventing contamination by dust or foreign substances, and there is no deformation from external impact or pressure due to the fusion of the weft and warp threads, and excellent durability. It is intended to provide an insect screen fabric, but that is the purpose.

A net-type fabric is woven using a number of filament yarns (f) twisted or plied yarns as warp (1a) and weft (1b), and a water-repellent solution is applied to the front and back of the net-type fabric, or The net-type fabric is impregnated by immersing it in the water-repellent liquid and then heat-treated at 180°C to 200°C in a tenter or heat treatment chamber. Since the contact part between the weft (1b) and the warp (1a) is melted and integrated, it maintains a very sturdy organizational structure, so it is extremely durable due to very little deformation even under external impact or pressure, and at the same time, a very excellent insect repellent fabric with a water-repellent function ( It is characterized by constituting 1).

The screen fabric 1 of the present invention configured as described above uses a yarn (yarn) obtained by twisting or plying a plurality of filament yarns (f) as weft yarns (1b) and warp yarns (1a) to weave a net fabric, and the net fabric After the water repellent treatment is carried out by coating or immersion method, the water repellent treated net fabric is manufactured by heat treatment at 180°C to 200°C through a device such as a tenter or heat treatment chamber, so that the water repellent is prepared before heat treatment of the woven net fabric. When applied or immersed, a water repellent is applied to each of the filament yarns (f) constituting the yarn. Therefore, when heat treatment is performed in this state, the contact portion of the filament yarns (f) coated with the water repellent agent is melted. Because it is made of mono yarn, there is no fear of snow or rainwater entering the room due to its excellent water repellency when used as a screen, and even if an impact from the outside or carelessness occurs during handling, the tissue density is not deformed or distorted, so it is durable. This excellent effect follows.

Therefore, in the process of use, as well as excellent water-repellent effect, various contaminants such as dust and foreign substances do not adhere well, and excellent antifouling effect can be expected.

1 is an exemplary cross-sectional view showing a contact portion of a warp and a weft yarn of a conventional insect screen.
Figure 2 is a perspective view of a screen showing an embodiment of the present invention.
Figure 3 is an exemplary cross-sectional view of warp and weft yarns showing a state before heat treatment of the insect repellent fabric as an embodiment of the present invention.
Figure 4 is an exemplary cross-sectional view showing a state in which warp yarns and weft yarns are bonded by heat treatment of an insect repellent net fabric as an embodiment of the present invention.

The present invention is to maximize the water-repellent and antifouling function, and to provide a repellent net fabric with excellent durability, and this will be described in detail with reference to FIGS. 2 to 4 of the accompanying drawings.

Figures 2 to 4 show an embodiment of the present invention, Figure 2 is a perspective view showing an embodiment of the insect repellent net fabric, Figure 3 is a state in which water repellent treatment by spraying or dipping method before heat treatment of the woven insect repellent fabric It is an example cross-sectional view of warp and weft yarns to show, and FIG. 4 is a cross-sectional view of a number of filament yarns (f) twisted or plied used as warp (1a) and weft (1b) by heat treatment of the water-repellent treated fabric. It is an exemplary cross-sectional view to show the state in which the part is melted to form a mono-yarn, and the warp (1a) and the weft (1b) are fused together.

As shown in Figs. 2 to 4, the insect repellent fabric (1) of the present invention uses a yarn obtained by twisting or plying a plurality of filament yarns (f) as warp yarns (1a) and weft yarns (1b), and then weaving the net fabric. , The water repellent is applied or immersed in the net fabric to allow the water repellent to penetrate into each of the filament yarns (f) as well as the front and back surfaces of the net fabric, and then tentered or heat treated at a temperature of 180°C to 200°C.

The warp yarns (1a) and weft yarns (1b) constituting the net fabric are yarns obtained by multi-stranded yarns or filament yarns made of synthetic resin materials including PP or PE, and in this state, a plurality of filament yarns ( f) is simply twisted together (twisted yarn) or gathered together (plied yarn), and the synthetic resin yarn has a smooth surface, so if it is a plain weave that forms a lattice hole like an insect screen, it can be applied to a small external impact or pressure. The positions of the weft and warp are easily deformed.

As described above, when the net fabric of the net structure is woven by using a yarn made by twisting or braiding a number of filament yarns (f) as weft and warp, the material itself is very smooth, and the contact area between the upper (1b) yarn and the warp (1a) Since a number of filament yarns (f) constituting the yarn are separated from each other, in the case of impact or pressure, whether artificial or natural in the handling process, the weft yarns (1b) of the net fabric (1b) and the warp yarns (1a) slip from each other. While it is easily deformed and disturbed at the same time, durability and reliability are greatly degraded, such as large and small irregular mesh holes.

The present invention is to fundamentally solve the durability problem of the net fabric as described above and at the same time to maximize the contamination prevention and water repellent effect. To this end, by applying or immersing a water repellent on the woven net fabric as described above, weft (1b ) And the plurality of filament yarns (f) constituting the warp (1a) are sufficiently coated or impregnated, and then the net fabric coated or impregnated with the water-repellent liquid is tentered at a temperature of 180°C to 200°C or By heat treatment to produce a screen fabric, it was possible to maximize the water-repellent and antifouling effects and maximize the durability.

In other words, in the present invention, a water-repellent solution is applied or impregnated on each of a plurality of filament yarns (f) twisted or plied by first performing a water-repellent treatment before heat treatment of the net fabric, and heat treatment is performed in this state, so that a plurality of filament yarns ( When the weft yarn (1b) and warp yarn (1a) made of f) are made of mono yarn, it is formed as a mono yarn in the state of being coated and impregnated with a water repellent, so if it is installed and used as a screen, snow or rainwater may enter the room due to its excellent water-repellent effect. Is very small, and the antifouling effect is also very excellent, and furthermore, the part where the weft yarn (1b) and the warp (1a) meet and contact is naturally melted and integrated in the heat treatment process to form a solid and deformable network. will be.

In the present invention constructed as described above, a net fabric is woven by using a filamint yarn (f) as a weft yarn and a warp yarn, followed by a water repellent treatment, followed by tentering or heat treatment at 180°C to 200°C. , Due to the excellent water-repellent effect and antifouling effect, it is possible to maintain a neat and clean insect screen at all times by preventing the inflow of rainwater and the contamination of the insect screen, and furthermore, the durability of the insect screen can be very maximized.

On the other hand, the filamint yarn (f) may be made of various materials, for example, polyester or low melting point polyester filament yarn or composite polypropylene may be used.

In particular, polyester has not only strong strength due to material characteristics, but also has no wrinkles and no shape distortion, so it can prevent shape distortion even in plain weave and has good durability. In addition, it is strong against sunlight and has the effect of blocking UV rays, and it has strong advantages against pests and drugs.

The composite polypropylene is characterized by mixing a separate adhesive resin to serve as a bonding yarn to polypropylene, or by using a high-strength polypropylene having a higher strength than polypropylene, thereby further increasing the bonding strength during heat treatment.

In addition, after weaving, the cross section of the warp 1a and the weft 1b may be bonded to each other by heat-treating the warp 1a and the weft 1b at a predetermined temperature.

The present invention constructed as described above will not be limited to the above-described embodiments, and thus can be variously modified within the scope of the object and spirit of the invention.

1: insect screen fabric 1a: warp
1b: weft yarn 11: adhesive part

Claims (1)

Weaving a net-type fabric using a number of filament yarns (f) twisted or plied as warp (1a) and weft (1b), and applying a water-repellent liquid to the front and back of the net-type fabric, or weaving The net-type fabric is impregnated with a water-repellent liquid and then heat-treated at 180°C to 200°C through a tenter or a heat treatment device, so that a number of filament yarns are applied or impregnated with a water repellent to each of the plurality of filament yarns (f). Each of (f) is characterized in that the contact part is melted to form a mono yarn, and the abutting part of the weft (1b) and warp (1a) is also melted and integrated to form an insect repellent fabric with excellent water repellency and durability. Insect screen fabric with water-repellent function.

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