JPH077927U - Awning sheet - Google Patents

Abstract

(57) [Summary] [Purpose] Prevention of sunlight in the car. [Structure] A synthetic resin sheet 1 is provided with an adhesive synthetic polymer material layer 2 having a function of repeatedly attaching and detaching on one or both sides, and the sheet or the adhesive synthetic polymer material layer 2 is colored. The seat can be attached on a sunny day to effectively block the sunlight inside the car, and on a rainy or cloudy day, remove the seat to prevent the car from becoming dark,
Further, it is possible to solve the problem that the scenery outside the vehicle becomes difficult to see.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an awning sheet to be used by being attached to a window glass of an automobile or a building.

[0002]

[Prior art and its problems]

 In order to prevent sunlight from shining inside the automobile, it has been practiced to put a coloring sheet on the window glass. Since this colored sheet is attached to the glass surface with a strong adhesive, it cannot be easily removed once it has been attached, and once removed, the removed sheet cannot be reattached and used again. Can not. In rainy or cloudy weather, if the colored sheet is attached to the window glass, the interior of the vehicle will be dark and the scenery outside the vehicle will be difficult to see.

[0003]

[Means for solving the problem]

 The awning sheet of the present invention comprises a synthetic resin sheet (1) on one or both sides of which an adhesive synthetic polymer layer (2) having a detachable function is repeatedly formed to form a sheet or an adhesive synthetic polymer layer (2). ) Is colored.

[0004]

[Action and effect]

 The seat can be installed on a sunny day to effectively block the sunlight inside the vehicle.On rainy or cloudy days, remove the seat to prevent the interior of the vehicle from becoming dark, and also to provide a view of the outside of the vehicle. It can solve the problem of becoming invisible.

[0005]

【Example】

 [First Example] As shown in FIG. 1, an adhesive synthetic polymer material layer (2) having a performance of 50 times or more of detaching / attaching on the entire surface of one side of a colored synthetic resin sheet (1) having a thickness of 0.05 to 1 mm. Is formed.

The tackiness of the tacky synthetic molecular substance layer (2) in the present invention is a property which is similar to the tackiness and is different from the tackiness. The term "adhesiveness" refers to the property of maintaining a normal adhesive function without causing any change on the adhesive surface when a certain object is stuck to the adhesive surface or repeatedly peeled. You can attach and detach any object with a simple one-touch force. On the other hand, the adhesive force is the force that cannot be peeled off again when a certain object is attached, and it will not stick again even if peeled, or even if it sticks, the adhesive force at the first force does not appear, It is just a little sticking together. In other words, if peeled off, the adhesive surface will be destroyed.

A substance having an adhesive property can be particularly required for a synthetic polymer substance, but in the present invention, among these substances, a substance having an adhesive function even after being detached and attached 50 times or more is desirable. The method for measuring the detachability is to fix an adhesive polymer substance coated on a polyester film in a thickness of 25 μm on an iron plate with the adhesive surface facing upward. Then, a polyester film having a width of 50 mm and a thickness of 50 μm is slowly pressure-bonded to the adhesive surface with a pressure-bonding roll of 5 kg. This is the number of times of a series of detaching and attaching in which this roll pressure bonding and peeling by hand are repeated. At this point, it is also necessary that there be no surface breakage of the adhesive surface. This surface destruction is judged by observing the surface with a magnifying glass and by the fact that the polymer substance on the surface is peeled off or the surface is abnormal such as unevenness.

Here, the adhesive strength is numerically about 20 to 400, preferably 50 to 300 g / 25 mm. More specifically, the adhesive polymer substance includes, for example, acrylic resin type, synthetic rubber type, polyvinyl chloride type, polysiloxane type, polyurethane type and the like, but the latter two types are more preferable. It can be attached / detached to / from any material or adherend of any shape with one-touch operation. Moreover, even if this attachment / detachment is performed hundreds of thousands of times, there is no surface damage and the adhesive strength remains unchanged. Furthermore, it is harmless to humans and animals. The most preferred of these two are polysiloxanes.

Original polymeric substances, that is, synthetic resins, are non-adhesive, and therefore, it is necessary to impart adhesiveness. This is generally made by adding and mixing a predetermined amount of the same type of highly viscous liquid or semi-solid polymer substance. The preferred polysiloxane type and polyurethane type will be described in more detail below. Polysiloxane is a substance in which silicon and oxygen atoms are alternately bonded to each other to form a main skeleton, which is highly molecularized to form a rubber-like or resin-like state. Of course, hydrogen atoms, alkyl groups such as methyl, aryl groups such as phenyl groups, and the like are bonded to silicon.

Since this basic polysiloxane is generally non-adhesive, a predetermined amount of a reaction-inert, high-viscosity liquid polysiloxane is added and mixed with the polysiloxane to impart tackiness that exhibits a predetermined function. For example, as a method of making, the basic polysiloxane body is a reactive polysiloxane that reacts with moisture in the air to become a higher polymer and change into a rubbery polysiloxane, that is, two or three alkoxy groups are bonded to the ends. About 5 to 40% (by weight) of a reaction-inert stable stable high-viscosity polysiloxane is added to the reactive siloxane. Using this as the starting material, it is applied and adhered to both sides of the sheet-like object.

Further, the polyurethane type is a polymer substance having a urethane bond in the main molecular chain, and reacts an organic diol having hydroxyl groups at both ends with an organic diisocyanate having an isocyanate group at both ends. At this time, use an organic diol with a high viscosity and a relatively high molecular weight, and add a little more than the equimolar amount to the organic diisocyanate to cause a reaction so that tackiness can be imparted simultaneously with the polyurethane formation reaction. You can

Next, a method for coating and adhering an adhesive synthetic polymer substance on a synthetic resin sheet will be described. The thickness of the synthetic resin sheet is 0.05 to 1 mm, preferably 0.1 to 0.5 mm. This is because it is required to be flexible so that it can be easily attached to a curved glass like a rear glass of an automobile. The method of applying the adhesive synthetic polymer substance is not particularly limited, such as screen printing and reverse coater. After coating, if necessary, it is dried according to the curing conditions of the adhesive polymer substance, such as heat drying and standing at room temperature.

Specific examples of the adhesive synthetic polymer material layer will be described below. To a reactive polysiloxane having a degree of polymerization of 400 and having both ends methoxylated (viscosity of about 3000 centipoise), 25% (by weight) of a polysiloxane liquid having a reaction inert viscosity of 450 poise and having both ends blocked with hydrogen atoms. ) Add and mix well. Using this as a coating solution, a 188-micron-thick polyester film is coated on one side and left for one day. The coating layer is reaction-cured and becomes an adhesive surface having rubber elasticity. The adhesive strength was 170 g / 25 mm on both sides. The adhesive force is that a polyester tape with a thickness of 50 microns and a width of 25 mm is pressed back and forth slowly with a 5 kg rubber roller in one reciprocating motion, and after 10 minutes, a tensile tester (JISB7721 peels at a speed of 300 mm / min at an angle of 180 °). The peeling force at that time is expressed in g.

Next, the number of times of attaching and detaching the adhesive synthetic polymer material layer is examined. A metal plate is used as an adherend, which is fixed, and the pressure-sensitive adhesive sheet is pressure-bonded with a 5 kg roller. Then it is peeled off rapidly by hand. This is repeated. When the adhesive strength was measured at the time of 300 times, there was no change at 175 g / 25 mm. Also, the adhesive surface was smooth with no change. Further, the attachment / detachment was performed 3000 times. The adhesive strength and adhesive surface at that time were checked. The adhesive strength was 171 g / 25 mm, which was unchanged, and no change was observed on the adhesive surface. Next, the adhesive sheet is cut into a size of 250 × 300 mm and attached to automatic glass. It can be easily crimped by pressing lightly with your hand.

As described above, the synthetic resin awning sheet of the present invention can be easily attached / detached even if the glass surface to be attached is a curved surface. In addition, the sunshade seat should be installed on a sunny day to effectively block the sunlight inside the vehicle, and on a rainy or cloudy day, remove the seat to prevent the interior of the vehicle from becoming dark and to prevent the scenery outside the vehicle. Can solve the problem of being difficult to see. The same effect can be obtained even when used for a glass window of a building. The awning sheet of the present invention should be wiped with water or alcohol if dust, fingerprints, etc. are attached to the adhesive surface and the adhesive strength is reduced, or if it is polysiloxane-based, it should be removed. It can be easily removed with a roller, gum tape, etc.

[Second Embodiment] As shown in FIG. 2, a colored sheet (12) is adhered to a transparent sheet (11) to form a two-sheet upholstery sheet (10). An adhesive synthetic polymer material layer (2) similar to the above is formed on one surface.

[Third Embodiment] As shown in FIG. 3, a colored adhesive synthetic polymer material layer (2a) having a performance of 50 times or more of detaching and attaching is formed on one surface of the transparent sheet (11). To do.

In any of the above-described second to third embodiments, the same effect as that of the first embodiment can be obtained. In the first to third examples, the adhesive synthetic polymer material layers are formed on both sides of the sheet, and one adhesive synthetic polymer material layer is used for adhesion to the window glass and the other adhesive synthetic polymer material layer is used. The molecular substance layer can be used for sticking memo paper or the like. The present invention is not limited to the configuration of the above embodiment, and various modifications can be made within the scope of the claims for utility model registration.

[Brief description of drawings]

FIG. 1 is a sectional view of a first embodiment.

FIG. 2 is a sectional view of a second embodiment.

FIG. 3 is a sectional view of a third embodiment.

[Explanation of symbols]

 (1) Film (2) Adhesive synthetic polymer layer

Claims (1)

[Scope of utility model registration request] 1. A synthetic resin sheet (1), on one or both sides of which an adhesive synthetic polymer substance layer (2) having a removably attaching / detaching function is formed, and the sheet or the adhesive synthetic polymer substance layer (2) is formed. A shaded sheet that is colored.