JP2008303663A - Peeling preventing structure of plastic film for window glass - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent various kinds of plastic films stuck on the window glass of vehicles such as a train and a bus from being artificially easily peeled. <P>SOLUTION: Band shaped peeling preventing materials 4a, 4b with a rear surface coated with an adhesive 6 are stuck across the whole outer circumferential edge of the plastic film stuck on the window glass and the window glass 3. The peeling preventing materials 4a, 4b and a peeling adhesive agent 6 are respectively made to have strength enough to be durable against artificial peeling. A plurality of ventilation holes 7 are formed at the peeling preventing materials 4a, 4b, and bubbles and moisture remained at the lower side of the plastic film 1 are made to be discharged outside through the ventilation hole 7. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is a window for preventing exfoliation of a plastic film such as a heat insulating film, a UV film (ultraviolet ray cut film), a crime prevention film, an anti-scattering film, a decorative film or a privacy film, which is attached to a window glass of a vehicle or a building. The present invention relates to a peel prevention structure for a plastic film for glass.

  While worried about global warming due to natural destruction, society wants a richer life. Air-conditioning is distributed in each room of the house and is also popular in transportation such as trains and buses, but the development of air-conditioning that saves energy consumption is progressing, but the glass itself used for windows in houses and vehicles However, in recent years, heat insulation films and UV films are often applied to window glass of passenger cars and buildings for the purpose of energy saving measures and reduction of exhaust gas. became.

As heat insulation measures for window glass, colored heat insulation glass and heat insulation films to be attached to ordinary window glass are commercially available, but all of them are not satisfactory performance due to low heat insulation performance of 10 to 50%, strong in summer The current situation is that the sunlight and severe winter cold enter the room and the car through the window glass, and the efficiency of air conditioning is impaired.
Furthermore, the former has the disadvantages that it is expensive and the glass cannot be regenerated once it is colored, and it breaks apart into pieces when it is broken due to an accident or the like. On the other hand, the latter can be heat-insulated at a low cost by retrofitting to an existing window glass, but it is affixed to the indoor side of the window glass or the inside of the vehicle due to concerns about performance deterioration. There was the fault that it was done.

  Therefore, in recent years, a film having high heat insulation performance that is hard to be scratched and has a heat insulation rate of 90% or more has been developed (for example, trade name “WINCOS AUTOMOTIVE FILM” manufactured by Lintec Corporation). By attaching such a highly heat-insulating film on the window glass of public transportation trains and buses, it is possible to easily reduce the air-conditioning temperature in the car with low energy consumption by reliably blocking heat conduction from the outside. It is expected to be achieved.

By the way, in general, plastic films for window glass have various types of purposes such as heat insulation, UV protection, crime prevention, scattering prevention, decoration and blindfold (privacy). In addition, it is attached to the window glass in combination with a surfactant aqueous solution (hereinafter sometimes referred to as a treatment liquid) sprayed on the window glass.
The surfactant aqueous solution is used to make it easy to attach and apply the plastic film with the adhesive to the window glass. After the plastic film is attached to the window glass and the surfactant aqueous solution is dried, The state of sticking to the window glass is maintained by the adhesive on the back surface of the plastic film.

When the plastic film is applied to the window glass, the surfactant aqueous solution sprayed on the window glass is crushed with a spatula from the top of the film affixed to the window glass, and the excess is removed from the outer periphery of the film along with residual bubbles. The plastic film needs to be discharged to the outside. For this purpose, the plastic film is cut smaller by about 2 mm around the window frame.
Also, if the adhesive on the back of the plastic film has too high adhesive strength, it may be difficult to peel off when the plastic film is attached to the window glass or when it is reattached by replacing the film, or the window glass may be damaged. As a result, it cannot have such a strong adhesive force that it cannot be artificially peeled off.

For this reason, when the above-described highly heat-insulating film is applied to the window glass of a train or bus that transports an unspecified number of passengers, the passengers pry the nail between the window frame and the heat-insulating film. There is a risk of peeling off, and in particular, the corner portions of the film that are angular are easy to get into the nail and easily peel off.
Therefore, a search was made for patent documents that prevent peeling of the plastic film for window glass, but no suitable examples were found. As mentioned above, in passenger cars and buildings, in recent years, heat insulation films and UV films have been affixed to window glass. However, there is no prior art to prevent film peeling. This is probably because the film was not taken off because it was a dedicated person.
None

  It is also conceivable to use existing gum tapes in which an adhesive is applied to a base material such as nonwoven fabric or paper. In these cases, the adhesive is strong but the base material itself is not strong. There is a risk that only the base material will be peeled off.

Against this background, when heat insulation films and UV films are affixed to the window glass of public transportation vehicles for the purpose of energy saving and exhaust gas reduction, the functions of these films are reliably demonstrated over multiple years. Therefore, a firm measure to prevent film peeling is required.
Therefore, the present invention is artificial when various plastic films such as a heat insulating film and a UV film, a crime prevention film, a scattering prevention film, a decorative film, a privacy film, and the like are attached to a window glass of a vehicle such as a train or a bus. An object of the present invention is to provide a structure for preventing the peeling of a plastic film for window glass that is not easily peeled off at low cost.

  In accordance with the above-mentioned object, the present invention is to paste a strip-shaped anti-peeling material having an adhesive applied to the back surface across the entire circumference of the outer peripheral edge of the plastic film attached to the window glass and the window glass. According to the present invention, the peeling prevention structure for the plastic film prevents the peeling of the plastic film, wherein the peeling prevention material and the peeling adhesive each have a strength that can withstand artificial peeling, and the peeling prevention material A plurality of ventilation holes for discharging bubbles and moisture remaining on the lower side of the plastic film to the outside are provided.

  After a plastic film such as a heat insulating film or a UV film is attached to a window glass of a vehicle, the surroundings are adhered and fixed to the window glass with an anti-peeling material, thereby preventing artificial peeling. Immediately after sticking the plastic film, the treatment liquid may not be completely removed from between the film and the window glass, and fine bubbles may remain. Useful for forcing with a spatula, or for spontaneous discharge. When the plastic film adhered to the window glass is peeled off by replacement or the like, the peeling preventing material or the peeling adhesive is removed using a tool such as a spatula or a peeling liquid.

As the strip-shaped peeling preventing material used in the present invention, for example, a material having a thickness of about 0.5 mm to 10 mm and a width of about 4 mm to 10 mm is suitable. There are various sizes, and the present invention is not limited to this.
Moreover, it is not always necessary for the anti-peeling material to straddle the plastic film and the window glass by the same width, and any uneven width may be used. Furthermore, there is a merit that dimensional management when cutting the plastic film and affixing can be easily performed by using a wide anti-peeling material and widening the adhesive width with the plastic film or window glass.

The peeling prevention structure of the present invention can also be applied to a case where a plurality of plastic films are laminated and pasted, for example, a film having different performance such as a heat insulating film, a UV film or a security film is stuck and stuck. Also suitable in some cases.
Furthermore, this invention can also be set as the structure which makes the inner peripheral side of a peeling prevention material incline in a taper shape or circular arc shape toward a plastic film, and eliminates the thickness of the inner periphery.

  In addition, the present invention has an elastic sheet that compensates for the difference in thickness of the plastic film between the anti-peeling material and the adhesive, and has a structure in which the anti-peeling material covers the inner peripheral side of the elastic sheet. It can also be set as the structure which recessedly provided the film accommodation groove | channel which absorbs the level | step difference for the thickness of a plastic film in the inner peripheral side of a prevention material.

According to the peeling prevention structure for a plastic film of the present invention, when various plastic films such as a heat insulating film and a UV film are attached to a window glass of a vehicle such as a train or a bus, the peeling prevention material is a plastic film. While maintaining the sticking state well, it is possible to easily prevent peeling at a low cost due to mischief of passengers.
Further, moisture and air bubbles remaining between the window glass and the plastic film can be discharged well from the vent hole provided in the peeling preventing material. Therefore, even if moisture or air bubbles remain between the window glass and the plastic film immediately after the plastic film is attached, it is possible to apply the peeling preventing material.

Furthermore, the peeling prevention structure of the present invention can be applied to a case where a plurality of plastic films having different performances are stacked and pasted. In addition, by making the inner peripheral side of the anti-peeling material inclined toward the plastic film in a tapered or arcuate shape and eliminating the thickness of the inner peripheral edge, the anti-peeling material is less likely to get caught by fingers and nails. In this way, it is possible to further prevent artificial peeling.
In addition, in order to give each of the peeling preventing material and the peeling adhesive a strength that can withstand artificial peeling, the cross section of the peeling preventing material may be a basic shape such as a rectangle or a rectangle.

  Furthermore, the present invention provides an elastic sheet that compensates for the difference in thickness of the plastic film between the anti-peeling material and the adhesive, and the anti-peeling material covers the inner peripheral side of the elastic sheet. By constructing a film housing groove that absorbs a level difference corresponding to the thickness of the plastic film on the inner peripheral side, the construction can be performed easily and the appearance is improved.

Embodiments of the plastic film peeling prevention structure of the present invention will be described below with reference to the drawings.
1 to 4 show a first embodiment of the present invention, and FIG. 1 is a front view of a state in which a plastic film attached to the inside of a vehicle window glass is fixed by the plastic film peeling prevention structure of the present embodiment. 2 is a front view of a state in which a plastic film is attached to the inside of the window glass of the vehicle as a pre-process of FIG. 1, FIG. 3 is an enlarged sectional view of III-III in FIG. 1, and FIG. is there.

  The plastic film 1 used in the first embodiment shown in FIGS. 1 to 4 is 90% of the heat insulating rate described above, which is adhered to the window glass 3 of transportation such as trains and buses for the purpose of energy saving measures and exhaust gas reduction. As shown in FIG. 1, the above-described high heat insulating performance heat insulating film has an adhesive 2 applied to the back surface thereof, a separate surfactant aqueous solution (not shown), and two long and short peeling preventing materials 4a, 4a, 4b, and 4b are used to fix the window glass 3 to the vehicle interior side.

  The surfactant aqueous solution is sprayed onto the window glass 3 with a sprayer or the like, and the adhesive coating surface side of the plastic film 1 is pasted on the window glass 3 and squeezed from the top of the film 1 with a spatula. Are discharged from the outer peripheral edge of the film 1 to the outside together with residual bubbles. For this discharge operation, the plastic film 1 is cut smaller than the window frame 5 by about 2 mm.

Each of the peeling prevention materials 4a, 4a, 4b, 4b is made of a metal thin plate such as a steel plate, a stainless steel plate, an aluminum alloy plate, or a hard and soft synthetic resin, and an adhesive 6 is applied to the back surface thereof.
The long and short peeling preventing materials 4a and 4b and the adhesive 6 have strengths that can withstand artificial peeling, respectively. Further, as shown in FIG. As shown in FIG. 3, the cross section is a shape in which the thickness of the other side edge is eliminated by tilting it in an arc shape toward the other side edge after the one side edge rises vertically as shown in FIG. It has become.
A plurality of vent holes 7 having a length of half to 2/3 of the full width are provided on the back side of the peeling preventive material 4a, 4b on the side where the adhesive 6 is applied, and are provided on one side edge side. Air bubbles and moisture remaining on the lower side of the film 1 by the construction work 1 can be discharged to the outside from the air holes 7.

  As described above, the plastic film 1 applied to the window glass 3 is provided with a pair of anti-separation materials 4a, 4a, 4b and 4b each having a long and a short length, as shown in FIGS. As shown in FIG. 1, the side edges of the anti-peeling materials 4a and 4b are directed toward the outer peripheral side (window frame 5 side), and the anti-peeling materials 4a and 4b are halved into the outer peripheral edge of the plastic film 1 and the window glass 3. The plastic film 1 is fixed to the window glass 3 by putting the adhesive 6 on the entire outer peripheral edge of the film 1 and the window glass 3.

As shown in FIGS. 1, 3, and 4, the anti-peeling materials 4 a, 4 a, 4 b, and 4 b have the side edges cut at 45 degrees butted together like a frame, and the outer peripheral edge of the plastic film 1 has no gap 3 and 4, the lower surface of the film 1 and the vent holes 7 of the anti-peeling materials 4a and 4b communicate with each other through the outer peripheral edge of the plastic film 1.
Thus, after the plastic film 1 is fixed with the anti-peeling materials 4a, 4a, 4b, 4b, even if surplus moisture of the surfactant aqueous solution or bubbles that cannot be removed remain on the lower surface of the plastic film 1, the construction worker However, by rubbing the surface of the plastic film 1 with a spatula, these can be easily discharged from the vent hole 7 to the outside.
Then, after excess water in the surfactant aqueous solution is removed or dried, the adhesive applied to the lower surface of the plastic film 1 sticks to the window glass 3, and the outer peripheral edge of the film 1 can withstand artificial peeling. The anti-separation materials 4a and 4b and the adhesive 6 that have the strength to be obtained maintain the state of sticking well for a long time even if tampered by passengers or the like.

  Further, in this embodiment, the vertical one side edge which is the outer peripheral side of the peeling preventing materials 4a, 4a, 4b and 4b is close to or in contact with the window frame 5, and fingers and nails cannot enter, and the plastic film 1 side On the inner peripheral side of the anti-peeling material 4a, 4a, 4b, 4b, the other side edge is inclined in an arc shape and has no thickness, so that fingers and nails are not caught. The material 4a, 4a, 4b, 4b is further prevented from peeling off.

Next, second to seventh embodiments of the present invention will be described with reference to FIGS.
In FIG. 5, FIG. 5 is an enlarged cross-sectional view of the main part of the plastic film peeling preventing structure showing the second embodiment, FIG. 6 is an enlarged cross-sectional view of the main part of the plastic film peeling preventing structure showing the third embodiment, and FIG. FIG. 8 is a front view of a plastic film peeling prevention structure showing a fifth embodiment, and FIG. 9 is a front view of the plastic film peeling prevention structure showing a sixth embodiment. 10 and 10 are front views of the plastic film peeling preventing structure according to the seventh embodiment.
In the second to seventh embodiments, the same components as those in the first embodiment are denoted by the same reference numerals and detailed description thereof is omitted. Also in the second to seventh embodiments, four long and short peeling preventing materials are used as in the first embodiment.

The long and short peeling preventing materials 4 a and 4 b used in the second embodiment of FIG. 5 are provided with a plurality of air holes 10 penetrating in the width direction of the back surface on the side where the adhesive 6 is applied. When the outer peripheral edge of the attached plastic film 1 is fixed by the four peeling preventing materials 4a and 4b, the lower surface of the film 1 and the plurality of vent holes 10 communicate with each other through the outer peripheral edge of the plastic film 1.
In the present embodiment, since the vent hole 10 communicates with both the inner and outer side edges of the anti-peeling materials 4a and 4b, moisture and bubbles remaining on the lower side of the plastic film 1 can be more easily discharged.

  In the third embodiment shown in FIG. 6, an elastic sheet 20 that compensates for the thickness difference of the plastic film 1 is interposed between the anti-peeling materials 4a and 4b and the adhesive 6 applied to the back surface thereof, The inner peripheral side of the elastic sheet 20 is covered with the peeling prevention materials 4a and 4b, and a plurality of vent holes 21 are provided in the elastic sheet 20 to communicate with the lower surface of the film 1 through the outer peripheral edge of the plastic film 1.

  In the fourth embodiment shown in FIG. 7, after one side edge of the anti-peeling materials 4a and 4b rises vertically, the wedge shape is formed such that the thickness of the other side edge is eliminated by inclining in a tapered shape toward the other side edge. In addition, a film housing groove 30 that absorbs a step corresponding to the thickness of the plastic film 1 is formed on the back surface of the peeling prevention materials 4a and 4b to which the adhesive 6 is applied, and the back surface width direction of the peeling prevention materials 4a and 4b. In addition, a plurality of air holes 31 communicating with the lower surface of the film 1 through the outer peripheral edge of the plastic film 1 are provided.

  Further, in the first embodiment, both side ends of the peeling preventing materials 4a and 4b are cut at 45 degrees, whereas in the fifth embodiment shown in FIG. 8, four long and short peeling preventions in which both side ends are cut at right angles. The difference is that the materials 4c, 4c, 4d, and 4d are used.

In the sixth embodiment shown in FIG. 9, the four anti-separation materials 4e and 4f, which are long and short, are formed slightly shorter than the left and right lengths and the vertical width of the plastic film 1, and the anti-peeling material 4g connecting these anti-separation materials 4e and 4f. As shown, four perpendicular corner pieces are formed, and the entire outer peripheral edge of the plastic film 1 is covered by polymerizing the peeling preventing material 4g on the side edges of the peeling preventing materials 4e and 4f.
The seventh embodiment shown in FIG. 10 is a modification of the seventh embodiment, in which corner portions of the peeling prevention material 4h that is a corner piece are formed in an arc shape in accordance with the round shape of the corner of the window frame 5. Is different.
In the sixth and seventh embodiments, the anti-peeling materials 4g and 4h dedicated to the corners are used and are superposed on the side edges of the four long and short anti-peeling materials 4e and 4f. Has the advantage of being rough.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view of the state which fixed the plastic film affixed inside the window glass of the vehicle which shows 1st Example of this invention with the plastic film peeling prevention structure of a present Example. It is a front view of the state which affixed the plastic film inside the window glass of the vehicle which shows 1st Example of this invention. FIG. 3 is an enlarged sectional view taken along the line III-III of FIG. 1 showing a first embodiment of the present invention. It is a principal part enlarged front view of the plastic film peeling prevention structure which shows 1st Example of this invention. It is a principal part expanded sectional view of the plastic film peeling prevention structure which shows 2nd Example of this invention. It is a principal part expanded sectional view of the plastic film peeling prevention structure which shows 3rd Example of this invention. It is a principal part expanded sectional view of the plastic film peeling prevention structure which shows 4th Example of this invention. It is a front view of the plastic film peeling prevention structure which shows 5th Example of this invention. It is a front view of the plastic film peeling prevention structure which shows 6th Example of this invention. It is a front view of the plastic film peeling prevention structure which shows 7th Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Plastic film 2 ... Adhesive 3 ... Window glass 4a, 4b, 4c, 4d, 4e, 4f ... Anti-peeling agent 5g, 4h ... Anti-peeling material for corner 5 ... Window frame 6 ... Adhesive 7, 10, 21 , 31 ... vent hole 20 ... elastic sheet 30 ... film accommodation groove

Claims (5)

A strip-shaped anti-peeling material with an adhesive applied to the back surface is stuck across the entire circumference of the outer peripheral edge of the plastic film stuck to the window glass and the window glass, thereby preventing the peeling of the plastic film. A plastic film peeling prevention structure,
Each of the anti-peeling material and the peeling adhesive has strength enough to withstand artificial peeling,
A peeling prevention structure for a plastic film for window glass, wherein the peeling prevention material is provided with a plurality of air holes for discharging bubbles and moisture remaining on the lower side of the plastic film to the outside. The plastic film for window glass according to claim 1, wherein a plurality of the plastic films are laminated and adhered. While the inner peripheral side of the peeling prevention material is inclined in a tapered shape or an arc shape toward the plastic film,
The thickness of the inner periphery is eliminated. The peeling prevention structure for a plastic film for window glass according to claim 1 or 2. Between the peeling prevention material and the adhesive is interposed an elastic sheet that compensates for the difference in thickness of the plastic film,
The peeling prevention structure for a plastic film for window glass according to any one of claims 1 to 3, wherein the peeling preventing material covers an inner peripheral side of the elastic sheet. The plastic for window glass according to any one of claims 1 to 4, wherein a film housing groove for absorbing a step corresponding to the thickness of the plastic film is provided on the inner peripheral side of the peeling preventing material. Film peeling prevention structure.