JP2594607Y2 - Car shading net - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a light-shielding net for an automobile which is attached to a window or the like to reduce light incident from the outside to the inside, to prevent see-through from the inside, and to allow a view from the inside to the outside. It is about.

[0002]

2. Description of the Related Art Conventional light-shielding products that are applied to a window surface for the purpose of reducing incident light and preventing internal see-through can be roughly classified into a paper type, an embossed type, and a translucent film type. Are all sheet-like materials.

The paper type utilizes opacity and irregular reflection of the material, and the embossed type similar to stained glass utilizes irregular reflection and color absorption, and both have sufficient effects of reducing incident light and preventing internal see-through. There is a drawback, however, that the outlook from the inside to the outside is completely unclear.

Further, the translucent film type is a film in which a reflective agent or a colored absorber is mixed into a film having a high transparency efficiency, and has the above-mentioned effects. However, there is a disadvantage that the outlook is not clear.

Further, a major drawback common to all of these sheet-like materials is that the work of attaching to a window surface is difficult, and if the window surface used is a curved surface, the attachment is almost impossible.

[0006]

Therefore, the above-mentioned problems of the conventional product have been solved, and a light shielding net attached to the window surface of an automobile has been used to reduce incident light, prevent an internal line of sight, and refresh the interior. An object of the present invention is to provide a light-shielding net which has three perspective effects, is easy to attach to a curved surface as well as a flat surface, and can be stably used.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a light shielding net for an automobile which is used by sticking it to a window surface of an automobile or the like. While applying a resin coating so as to leave a mesh, by pressing from the front and back, at least the intersection of the yarns of the mesh yarn forming the mesh is flattened, and the net surface as the sticking surface is made substantially smooth as a whole It is characterized by having been formed.

[0008] In the above, it is preferable that the outer surface of the net is colored with a higher reflectance than the inner surface.

[0009]

According to the light-shielding net of the present invention, at least the intersections of the yarns forming the net are flattened, and the net surface, which is the bonding surface as a whole, has a substantially smooth shape. . Therefore, the net as a whole has a sheet shape with a small thickness, and the flatness of the net yarn portion and the smooth state of the net surface serving as an attaching surface can be favorably maintained due to the setting property of the resin coating layer on the yarn surface. And a uniform mesh can be maintained as a whole.

The light-shielding net according to the present invention will be described according to the conventional problems.

Conventional embossing and film-type sheet-like materials are subjected to a kind of light processing such as partial opacity, irregular reflection, irregular refraction or colored absorption depending on the material.
Various disadvantages arise for each type.

On the other hand, the light-shielding net of the present invention reduces and adjusts the incident light according to the area ratio of the mesh part that allows light to pass through and the mesh part that does not allow light to pass therethrough, and is dazzled by the reflected light at the mesh part. The function prevents the internal see-through, and provides a clear view without a sense of incongruity because the light passing through the mesh is natural light itself that is not processed. in this way,
The shading net obtained by the present invention has the three effects of reducing incident light, preventing internal line-of-sight, and clear line-of-sight from inside.

[0013] In the pasting operation, it is necessary to use a water-based adhesive which is slow to dry and is difficult to shift as a pre-process for a conventional embossed type or film type sheet-like material. There is a problem that once engulfment occurs, once it occurs, it is necessary to shift them to the end one by one or re-attach them to completely remove wrinkles and bubbles. This problem is particularly acute if the windows are curved. Originally, the sheet-like material has a basic shape of a flat surface, so it is natural that it does not fit into a curved surface, and in order to adapt it to a curved surface, it requires advanced technology to strongly compress and expand and contract the sheet itself. This is almost impossible for a layman.

On the other hand, the light-shielding net of the present invention is applied to a net formed of fiber yarns by applying a resin coating so as to leave a mesh, and pressing the same to flatten at least the intersections of the yarns to form a net surface. Since the surface is smoothed, it is easy to apply an adhesive to the net surface, and the entire net is strong and hard to wrinkle. Moreover, since the net has a mesh, no air bubbles are trapped. In addition, the so-called bias effect is exhibited by the change in the crossing angle of the yarn and the change in the mesh shape due to the bending of the yarn, so it can be easily applied to the curved surface simply by pressing it on the window surface. it can. As described above, the light shielding net according to the present invention can be easily attached to a curved surface as well as a flat surface because the attaching operation is simple and takes no time.

In general, a net formed by weaving fiber yarns generally forms a raised projection at the intersection of yarns in a net yarn portion forming a mesh. When the pressure-sensitive adhesive is applied, the contact state with the adhered surface when affixed is a point contact state at the protruding protrusion, and the contact ratio to the entire area is extremely small, Stable adhesion is impaired. Originally, an adhesive is a viscous substance.If the total adhesive force is smaller than the total stress when continuous stress is applied to the adhesive part for a long time, the peeling due to interfacial fracture or cohesive failure of the adhesive may occur. Occur. This phenomenon is particularly remarkable in a point contact net having an extremely small contact ratio.

On the other hand, in the light-shielding net of the present invention, at least the intersections of the yarns of the net yarn forming the mesh are flattened to eliminate the projections on the net surface. Since the whole is made substantially smooth together with the coating layer on the surface of the yarn, the difference in height between the intersection of the yarn and the adjacent recessed part can be leveled by the setting property of the coating layer on the yarn surface, and the net surface can be made smooth, In addition, the smooth state can be maintained well. Therefore, the adhesive portion of the adhesive applied to the mesh surface serving as the sticking surface with respect to the window surface can be exerted on substantially the entire smoothed net yarn portion, whereby the contact state of the adhesive portion with the adhered surface is reduced. As a result, a line contact state having a width due to the mesh portion is obtained, and the contact ratio is greatly increased as compared with the case of the point contact state. In this way, it is possible to always have a sufficiently large adhesive force than the restoring stress when the tape is attached to a curved surface, and the attached state is stabilized.

Further, since the embossed type or film type adhesive sheet is adhered to the surface to be adhered, the exfoliated portion has a continuous shape when peeled off. Not only is the force required, but the great force also causes the sheet to break, making the peeling operation cumbersome and almost impossible to reuse.

On the other hand, in the light-shielding net obtained by the present invention, the surface to be adhered is simply stuck with a net thread portion provided with an adhesive, and the peeling portion when peeling this is used. Is intermittent due to the presence of the mesh, and can be easily peeled off with a small force and without damaging the mesh, as compared to the case where the peeled portion is adhered to one surface like the sheet-like material and the peeled portion is continuous. be able to. Therefore, attachment and detachment and reuse can be easily performed.

In the case where inorganic glass fiber yarn obtained by bundling long glass fibers is used, since it has higher toughness than other organic fibers, it is difficult to bend and wrinkles are more difficult. good. Further, glass fibers have good heat resistance such as tensile strength and elasticity, and weather resistance, so that they can be suitably used particularly as automobiles.

That is, the window surface of an automobile is exposed to intense light rays and becomes extremely hot (80 ° C. or more) in summer and the temperature in winter becomes even lower than zero. , Shrinkage, deformation is easy to occur, peeling or breakage due to deterioration stress occurs, but if it is a glass fiber yarn excellent in heat resistance and weather resistance, it can be used by sticking it to the window surface of an automobile without the problems described above, It will be excellent in durability.

In addition, by applying a resin coating to a net woven with glass fiber yarns having such characteristics, not only the net surface can be made smooth, but also the glass fiber yarns can be prevented from being bent and broken, and can be used as a light shielding net. Appropriate feeling can be given.

When the yarns constituting the net are made non-light-transmitting, even if different colors are painted or patterns are drawn on both surfaces, they do not interfere with each other at all and become independent.

In view of this, a paint color having a high reflectance is applied to the outer surface of the light shielding net, and a dark paint color is applied to the inner surface thereof.
If the outer side surface is made to have a higher reflectance than the inner side surface, the effect of preventing the temperature rise in the room and the perspective of the inside is enhanced, and the view from the inside becomes clearer. In addition, if different patterns are printed on the outer surface and the inner surface in accordance with the respective atmospheres, it can be used as a paste-type screen having high interior properties.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the shading net 10 of the present invention will be described with reference to FIGS.

The base fabric 13 of the net 12 has a thickness of 6 μm and is twisted twice.
Glass fiber yarn 16 made by bundling 400 glass long fibers
Are woven so as to form a relatively fine mesh at a number of 20 per 25 mm in both the warp and weft directions.
The thickness of the long glass fiber is not particularly limited, but is preferably 3 μm to 9 μm because it has appropriate toughness, and the pitch of the glass fiber thread 16 is appropriately changed according to the purpose of use of the light shielding net 10. Is possible.

On the surface of the woven net fabric 13,
As shown in the drawing, for example, a vinyl chloride resin 18 is coated on the base cloth 13 at a ratio of about 35% by weight so as to leave the mesh in an open state. By doing so, the net 12 is given flexibility and feeling, and the glass fiber yarn 16 is loosened or uneven due to the convergence of the long glass fiber, and the net 16 is deformed by shifting the yarn 16 in the warp or weft direction. Is prevented.

After coating the resin 18, the mesh 12
Is pressed by a roll (not shown) so as to deform the warp yarn and its intersection, thereby flattening the yarn itself.
In the cross section of FIG. 12, the wavy shape shown in FIG. 2 is replaced with a flat shape having no projections as shown in FIG. 3, that is, the level difference between the intersection of the yarn and the adjacent concave portion is leveled. The surface is changed to a substantially smooth shape. In particular, the flatness of the yarn and the smoothness of the mesh surface can be favorably maintained by the setting property of the resin coating layer on the yarn surface. In addition, since the yarn is a bundle of long fibers, the yarn itself is easily flattened as shown in the figure, and the entire net has a sheet shape with less unevenness than the net made by ordinary knitting and having a small overall thickness. become.

As a result, the mesh 12 which is not pressed is
As shown in FIG. 2, when bonded to the adherend surface of G, only the intersection 17 of the warp yarn 16a and the weft yarn 16b of the glass fiber yarn 16 is the net 12 obtained by flattening the yarn as described above.
As shown in FIG. 3, the flattened and smoothed warp yarns 16a and weft yarns 16b come into contact with the adherend surface with a required width, and the contact area increases.

In this embodiment, the net 12 is made of glass fiber yarn.
Since weaving was carried out, as shown schematically in FIG. 4, the warp 16a
The angle of intersection α between the wire and the weft 16b changes, and the glass fiber yarns 16 forming the net 12 are bent, so that the shape of each net changes three-dimensionally and the net 12 can follow the curved surface.

As shown in FIG. 3, a hydrophilic pressure-sensitive adhesive 20 is applied to one side 14 of the mesh 12 which is coated with a resin and pressed to flatten the yarn. The hydrophilic pressure-sensitive adhesive can be easily washed off with water to remove the pressure-sensitive adhesive remaining on the surface to be adhered when peeled from the surface to be adhered such as a window glass. On the other hand, if the adhesion is reduced due to repeated attachment and removal of the adhesive on the adhesive surface, the adhesive can be removed by gently washing the adhesive surface with water so that the adhesive does not disappear,
The reduced adhesive strength can be restored. This adhesive
Various types can be used for 20, but those based on an acrylic copolymer emulsion, to which a small amount of a vinyl acetate emulsion is added, not only can be removed with water, but also have adhesive stability, detachability, Good results were obtained in terms of heat resistance, weather resistance and the like. The application of the adhesive 20 can be performed by a method such as roller coating or spray application. In any case, since the mesh surface is smoothed as described above, it can be easily applied, and the adhesive portion can be applied to a wide range. be able to.

In the above-described embodiment, a desired paint 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 net 12 in this way, natural light enters through the mesh and the outside can be seen through the mesh. When the inner and outer surfaces of the net 12 are painted, if the outer surface is made to be a silver-based color and the inner surface is made to be a black-based color, the reflectance of sunlight is increased, and the temperature rise in the room can be prevented. This makes it difficult to see inside, and gives a clear view from inside.

In the above embodiment, the base fabric 13 is formed by weaving the glass fiber yarn 16 and then the base fabric 13 is coated with the resin 18. Alternatively, as shown in FIG. The glass fiber yarn 16 is coated with a resin 18, and then the glass fiber yarn 16 is knitted and woven to form a net 12. By pressing this, the crossing portion of the yarn in the net yarn portion is flattened and the net surface is entirely formed. And may be smoothed.

In the above embodiment of the present invention,
Although a glass fiber yarn in which a large number of long fibers are bundled is used and a net formed by weaving with the glass fiber yarn 16 is coated with a resin, it is also possible to use a bundle yarn of long fibers of other materials. 6, synthetic resin monofilaments 24, 2 made of flat polyester resin or the like.
It is conceivable to use 4. In the case of a monofilament yarn, it is not always necessary to coat the resin 18.However, after forming the net 12 by knitting, the net 12 is pressed by a roll or the like, or thermocompression-bonded, so that the monofilament 24 extends in the warp or weft direction. The misalignment of the net 12 is prevented.

[0034]

According to the light shielding net for an automobile of the present invention, at least the intersections of the yarns forming the mesh are flattened, so that the net surface has a smooth shape as a whole and the fiber yarn is formed. Thus, a light-shielding net having a small thickness as a whole can be obtained even if the net is formed by the above method. Therefore, the adhesive can be easily applied to the net surface, the adhesive portion of the adhesive can be applied to the entire flattened portion, and the contact ratio to the adhered surface is larger than that of a simple net. Therefore, the obtained light-shielding net can maintain a stable attached state without losing the properties of the net, in combination with the reinforcing effect of the resin coating, and can be easily detached and reused as necessary.

Further, even if the window surface is not only a flat surface but also a curved surface, it is possible to obtain a light shielding net which can be attached to the inside thereof with a simple operation and in a short time. In addition to reducing the incident light to the outside and preventing see-through, a clear view without discomfort from inside to outside can be obtained.

Further, when a glass fiber yarn is used as the material of the net, it is excellent in heat resistance and weather resistance. Does not break and has excellent durability. Further, by making the outer surface of the net a color having a higher reflectivity than the inner surface, the effect of preventing the temperature rise in the room and the see-through of the inside is enhanced, and the view from the inside is further refreshed.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a light shielding net according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state before the mesh is pressed in the light shielding mesh of the preceding figure.

FIG. 3 is a cross-sectional view showing a state after pressing of the net in the light shielding net of FIG. 1;

FIG. 4 is a schematic diagram showing a state where the light shielding net of FIG. 1 is attached to a curved surface to be adhered.

FIG. 5 is a cross-sectional view showing another example of the light shielding net.

FIG. 6 is a cross-sectional view showing an example in which a light shielding net is woven by a monofilament yarn.

[Explanation of symbols]

 10 ... shade net 12 ... net 14 ... one side 16 ... glass fiber thread 18 ... resin 20 ... adhesive

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields investigated (Int. Cl. ⁶ , DB name) E06B 9/24 B29D 28/00 B60J 3/00 D06M 15/00

Claims (1)

(57) [Scope of request for utility model registration] 1. A light-blocking network for use by sticking to the window surface of an automobile, to form a fine net of by Ri ratio comparatively eyes in fiber維糸,
With applying a resin coating to leave a mesh of this mesh, thread mesh forming a pressure to thus mesh from Table back
A light-shielding net for an automobile , wherein at least a crossing portion of a thread of the portion is flattened, and a net surface as an attaching surface is formed to be substantially smooth as a whole .