JPH01207376A - Light shielding net - Google Patents

Abstract

PURPOSE:To obtain a light shielding net reducing incident light from the outside of building to the inside, preventing seeing through from the outside to the inside, enabling seeing through from the inside to the outside, by knitting tough yarn into a net of fine meshes, making one side of the net smooth and applying a tacky agent to the net. CONSTITUTION:For example, glass fiber yarn 16 is knitted into a net 12, which is coated with a resin 18, a tacky agent 20 is applied to piled parts of warp 16a and and weft 16b of the glass fiber yarn 16 to give the aimed light shielding net which can be stuck to the inside of window of even curved surface by simple operation in a short time, optionally removed, is reusable and is most suitable for interior of rooms and inner lining of window of automobile.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applied to a window surface, etc., to reduce incident light from the outside to the inside, prevent see-through to the inside, and furthermore prevent the light from entering from the inside to the outside. This relates to a shading net that allows visibility.

[Conventional technology] Conventional products that are attached to window surfaces for the purpose of reducing incident light and preventing internal see-through can be roughly divided into paper types, embossed types, and translucent film types, but all of these are sheet-type products. It is a kind of thing.

The paper type uses the opacity and diffused reflection of the material, and the embossed type, which resembles stained glass, uses diffused reflection and colored absorption, and both are effective in reducing incident light and preventing internal see-through, but The disadvantage is that there is no visibility from the inside to the outside.

In addition, the translucent film type is a film with good transparency mixed with reflective agents and colored absorbers, and although it has the above effects, it feels strange due to the mixed agents, and the visibility is poor. There is a drawback that it is not refreshing.

Furthermore, a major drawback that all of these sheet-like materials have in common is that it is difficult to attach them to a window surface, and it is almost impossible to attach them to a curved window surface.

[Problems to be Solved by the Invention] The present invention has been made to solve each of the above-mentioned problems and add new features, including (A) reduction of incident light and prevention of internal visibility; (B) Easy to apply to curved surfaces as well as flat surfaces; (C) Stable adhesive effect can be maintained; (D) ) It is an object of the present invention to provide a light-shielding net that is removable and reusable.

[Means for Solving the Problems] In order to solve the above problems, the light-shielding net according to the present invention is made by knitting and weaving tough threads to form a fine mesh, and one side of this net is made smooth. In addition, this one side is coated with an adhesive.

Further, it is preferable that the net is formed by knitting and weaving glass fiber threads, and the net is coated with a resin.

It is also good to paint or draw a pattern on one or both sides of the net.

Furthermore, it is also preferable to use a hydrophilic adhesive for the reasons described below.

[Function] Hereinafter, the light-shielding net according to the invention of claim 1 will be explained in response to each of the above-mentioned problems.

Conventional sheet-like materials are partially impermeable,
Since a type of light processing such as diffuse reflection, diffuse refraction, or colored absorption is performed, various drawbacks occur depending on each type. On the other hand, the light-shielding net of the present invention has
It reduces and adjusts the incident light, and prevents internal viewing through the dazzling effect of reflected light from the mesh threads, and the light that passes through the mesh is unprocessed natural light, providing a clear and unobtrusive view. As described above, the light-shielding net of the present invention has three effects at the same time: (A) reducing incident light, preventing visibility into the interior, and providing clear visibility from the interior.

In addition, regarding pasting work, conventional sheet-like materials are
Although it is necessary to use a water-based adhesive that dries slowly and has a long shelf life as a pre-processing, it is still prone to trapping wrinkles and air bubbles, and once they occur, they must be removed to completely remove the wrinkles and air bubbles. There is a problem in that they have to be moved one by one toward the edges or reattached. In particular, if the window is curved, this problem becomes even more acute. Since the basic shape of sheet-like objects is originally flat, it is natural that they do not conform to curved surfaces.In order to make them conform to curved surfaces, a high level of skill is required to apply strong pressure and make the sheet itself expand and contract. , which is almost impossible for amateurs.

In contrast, the light-shielding net of the present invention is knitted with yarns that have toughness, so the entire net also has toughness and wrinkles are less
, it does not entrap air bubbles, and it also exhibits a so-called bias effect due to changes in the intersecting angle of the threads and changes in the mesh shape due to the bending of the threads, so it easily adapts to curved surfaces just by pressing it down. Becomes sticky. In this way, (B
) The shading net of the present invention is easy to attach and does not take much time, and can be easily attached not only to flat surfaces but also to curved surfaces.

In addition, since nets generally form raised protrusions at the intersections of threads, if a regular net is coated with adhesive, the contact state with the adhered surface will be point contact when pasted. As a result, the contact ratio to the total area becomes extremely small, and stable adhesion is inhibited. Originally, adhesive is an active fluid substance, and when stress is continuously applied to the adhesive part for a long time, and the total adhesive force is smaller than the total stress, the adhesive will peel off due to interfacial failure or cohesive failure. . This phenomenon is particularly noticeable in a net that is in a point contact state with an extremely small contact ratio. On the other hand, in the light-shielding net of the present invention, by eliminating the protrusions on the surface to which the adhesive is applied and making it smooth, the adhesive part is applied to the entire system, and the contact state is made into a line contact, thereby increasing the contact ratio. It is increasing in width. In this way, the shading net of the present invention (C) can obtain a stable adhesion effect by constantly providing a viscous force that is sufficiently larger than the restoring stress due to the bias effect when it is pasted onto a curved surface.

Furthermore, when peeling off an adhesive sheet-like material, the peeled part is linear, so not only does a large force be required, but the large force can also cause the sheet to break.
Not only is the work of peeling it off tedious, but it is almost impossible to reuse it. On the other hand, in the light shielding net of the present invention,
The peeled portions are in the form of many dots, and can be easily rinsed off without damaging the net with an extremely small force compared to the case of linear portions, so (D) detachment and reuse are possible.

Next, a description will be given of a light-shielding net according to claim 2, which is characterized in that the net is formed by knitting and weaving glass fiber threads, and the net is coated with a resin.

Since glass fiber is inorganic, it has greater toughness than other organic fibers, so it is less likely to bend and wrinkle, making it easier to work with.

In addition, glass fiber has good heat resistance and weather resistance such as tensile strength and elasticity, so even if it is applied to a window surface that is exposed to strong light and is exposed to severe temperatures, it will not peel off or break due to deterioration stress.

By applying a resin coating to a net knitted with glass fiber yarns having these characteristics, it is possible to prevent the glass fiber yarns from bending and breaking, give texture to the light shielding net, and prevent protrusions at intersections and adjacent recesses. It is possible to equalize the height difference between the two and make the mesh surface smooth.

Next, a description will be given of the invention according to claim 3, that is, a light-shielding net characterized in that one or both sides are painted or have a pattern drawn on them.

In the case of sheet-like materials, because of the essential condition of the material being light transmittance, if you paint or draw a pattern on one side, it will always be projected onto the opposite side. Therefore, if different colors or designs are applied to both sides of a sheet-like object, they will interfere with each other and become meaningless.On the other hand, in the light-shielding net of the present invention, the net yarn is made of light-shielding material. Since it can be made transparent, even if you paint different colors or draw designs on both sides, they will not interfere with each other and will be independent.

Therefore, the outer surface of this blackout net is painted with a highly reflective color.
Applying a dark paint color to the interior surfaces will not only increase the effectiveness of preventing indoor temperatures from rising and seeing through the interior, but will also provide a clearer view from inside. In addition, by printing different designs on the outside and inside surfaces to match the atmosphere of each, the sticker can be used as a mold screen for highly interior decoration.

Next, to explain the invention of claim 4, that is, the light-shielding net characterized in that the adhesive has hydrophilicity, by using an adhesive that has -H hydrophilicity, the light-shielding net can be removed from the adhered surface. When peeled off, the adhesive remaining on the adhered surface can be removed with a damp cloth or the like, so the beauty of the glass etc. will not be damaged.

[Example] Hereinafter, an example of the light shielding net 10 according to the present invention will be described based on FIGS. 1 to 4.

Reference numeral 13 is the base fabric of the net 12, which is made by weaving 20 glass fiber threads 10 each of 25 mm in both the warp and weft directions, each consisting of 400 twisted glass fibers with a thickness of 6 μm bundled together. . Note that the thickness of the glass fibers is not particularly limited, but is preferably 3 μm to 9 μm because it has appropriate toughness, and the pitch of the glass fiber threads 16 may be changed as appropriate depending on the purpose of use of the light shielding net 10. It is possible.

Furthermore, it is natural that the shape of the mesh is not limited to a rectangular shape, but may be a rhombus or a hexagon.

The surface of the base fabric 13 is coated with vinyl chloride resin 18 at a ratio of about 35% by weight to the base fabric 13.

By doing so, the net 12 is given flexibility and texture, and the glass fiber yarns 1B are prevented from shifting in the warp or weft direction and deforming the net 12.

The net 12 coated with the resin 18 is pressed with a roll (not shown) to change the cross section of the net 12 from a wavy shape as shown in FIG. 2 to a planar shape as shown in FIG. As a result, when bonded to the adherend surface of the glass G without pressing, as shown in FIG. 2, the warp 16a and the weft 16b of the glass fiber yarn IG touch only at the intersection 17, but as shown in FIG. 3, the warp 16a and the weft yarn 16b come into contact with the surface to be adhered in a linear manner.

In this embodiment, the net 12 is formed by knitting and weaving the glass fiber yarn 16, so when it is attached to a curved surface, the warp tea and weft Since the intersection angle α of the tabs changes and the glass fiber threads 16 constituting the net 12 bend, the shape of each mesh changes three-dimensionally, allowing the net 12 to follow a curved surface.

As shown in FIG. 3, a resin-coated net 12
A hydrophilic adhesive 20 is applied to one side 14 of.

When a hydrophilic adhesive is peeled off, the adhesive remaining on the adhered surface can be easily removed by washing with water, and the adhesive on the adhesive surface that occurs after repeated attachment and detachment can be washed away with water to restore the reduced adhesive strength. be able to. Various adhesives can be used for this adhesive 20, but one that is based on acrylic copolymer emulsion and to which a small amount of vinyl acetate emulsion is added not only can be removed with moisture but also has excellent adhesive stability and removability. Good results have been obtained in terms of workability, heat resistance, weather resistance, etc. The adhesive 20 can be applied by a method such as roller coating or spray coating.

In the above embodiment, a desired color or pattern can be drawn on one or both sides of the resin 18 of the coated net 12 by various printing methods such as silk screen printing. Even if the pattern is clearly drawn on the mesh 12 in this way, natural light can enter through the mesh and the outside can be seen through the mesh. When painting the inner and outer surfaces of the net 12, painting the outer surface a silvery color and the inner surface a blackish color will increase the reflectance of sunlight and prevent indoor temperature rise, as well as reduce the dazzling effect of the colors. This makes it difficult to see inside.
What's more, you can get a clear view from inside.

In the above embodiment, after the base fabric 13 is formed by knitting the glass fiber yarn 1B, the resin 18 is applied to the base fabric 13.
However, instead of this, as shown in FIG. 5, the glass fiber thread 16 is coated with a resin 18,
Thereafter, the glass fiber threads 16 may be knitted to form the net 12.

Further, in each of the above embodiments, a glass fiber thread 16 made by bundling a large number of glass fibers was used and the glass fiber thread 1G was coated with a resin, but instead of this,
As shown in FIG. 6, flat monofilaments 24, 24 made of polyester resin may be used. In this case, it is not necessary to coat the resin 18, but after knitting and weaving to form the net 12, the net 12 may be pressed with a roll or the like or heat-pressed to prevent the monofilament 24 from shifting in the warp or weft direction. This prevents the net 12 from being deformed.

[Effects of invention 1
The shading net of the present invention can be attached to the inside of a window with simple work and in a short time even if the window surface is flat or curved, reducing incident light from the outside to the inside and improving transparency. In addition to providing a clear view from the inside to the outside, it also has a stable adhesive effect against light and cold temperatures, and can be removed and reused as needed. be. Therefore, of course the windows of buildings,
It is also ideal for lining automobile windows, which use many curved surfaces and are subject to harsh conditions.

In addition, by painting various colors or designs on one or both sides, it can be applied to create an interior effect both indoors and outdoors, and can also be used as a mold screen.

Furthermore, if a hydrophilic adhesive is used as the adhesive, even if the adhesive remains on the window surface, it can be wiped off with water, making it possible to remove and reuse it.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of a shading net according to an embodiment of the present invention, and FIGS. 2 and 3 are sectional views of the shading net of FIG. 3 shows the state before pressing, FIG. 3 shows the state after suppression, FIG. 4 is a schematic diagram showing the state in which the light-shielding net shown in FIG. 1 is attached to a curved surface to be adhered to, and FIGS. FIG. 7 is a cross-sectional view showing another embodiment of the light-shielding net according to the present invention. Explanation of symbols 10...Shading net 12...Net 14...One side 16...Glass fiber thread 18...Resin 20... ... Adhesive patent applicant Ryo Sugie - Agent Patent attorney Tsuta 1) Shouko 1゛ゞ;t
"li'1 and 2 others 11" 17 G Figure 2 20 G 3rd
Figure procedure amendment June 7, 1988 Director General of the Japan Patent Office Yoshi 1) Moon Tsuyoshi &i1, Indication of the case 1988 Patent 8 No. 715512, Name of the invention Shading net 3, Person making the amendment Related: Patent applicant: Ryo Sugie, 1-17 Uchihirano-cho, Higashi-ku, Osaka-4, Agent 5, Date of amendment order: Showa, Month, Day Motu 7, Contents of amendment (1) Specification, page 8, line 3 The text "heat resistant" is corrected to "heat resistant." (2) In the fourth line of the same page, replace "weather resistance" with "weather resistance."
I am corrected. (3) In the third line of page 10, the phrase "long glass fiber" is corrected to "long glass fiber." (4) In the same page 12, line 17, the word "dazzle" is corrected to "dazzle." (5) Insert the following sentence from line 17 on page 13. In addition to the woven nets shown in the above embodiments, the net-like base fabric of the present invention may be a knitted net, or a fabric made by stacking tough glass fiber yarns or organic fiber yarns vertically and horizontally. Of course, the so-called orthogonal laminated cloth net that is stopped will also be damaged.'' 1. Indication of the case Patent Application No. 71551 of 1988 2. Name of the invention Shading net 3. Person making the amendment Related Patent Applicant: Ryo Sugie, 1-17 Uchisono-cho, Higashi-ku, Osaka-4, Agent 5, Date of Amendment Order: June 17, 1988 (Shipping date: June 28, 1988)

Claims (1)

[Claims] 1. A fine mesh is formed by knitting and weaving threads having toughness,
A light-shielding net characterized by having one side of the net smooth and coated with an adhesive. 2. The light-shielding net according to claim 1, wherein the net is formed by knitting and weaving glass fiber threads, and the net is coated with a resin. 3. The light-shielding net according to claim 1 or 2, characterized in that one or both sides of the net are painted or have a pattern drawn on them. 4. The light-shielding net according to any one of claims 1 to 3, wherein the adhesive has hydrophilic properties.