JPS6283221A - Method for removing frost and snow deposited on window glass of parking vehicle - Google Patents

Abstract

PURPOSE:To facilitate the removal of frost and snow deposited on a window glass by peeling off a film, without scratching said window glass by sticking a frost and snow removing film to said window glass of a parking vehicle. CONSTITUTION:A pressure-sensitive adhesive having an adhesion of ball tack No.1 or above in a J. DOW adhesion testing method at the time of a thickness of 30mu of coating quantity in solid content at the temp. of 0 deg.C, is coated on one surface of a plastic film having less than -30 deg.C of brittle temp. Then, the coating thickness is made 3-30mu in solid content, and this frost and snow removing film is stuck to the window glass of a parking vehicle. And, frost and snow deposited on it is removed by peeling off the film from the window glass. As a result, frost and snow can be easily removed without scratching the glass.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for removing frost and snow that falls and adheres to the window glass of parked vehicles such as automobiles in winter.

[Conventional technology]

Conventionally, the method for removing frost and snow that falls and adheres to the window glass of parked vehicles such as cars in winter is: 1) Directly pour hot water on the window to melt and remove the frost and snow. ■Use a plate-like object to scrape off the frost and snow. ■You can cover the entire army with seat covers in advance. There are other methods.

[Problem that the invention seeks to solve]

In the method of pouring hot water to melt and remove frost and snow, if the temperature of the hot water is low or the amount of hot water is small, the frost and snow will refreeze before it melts and flows away, making it more difficult to remove. Scraping off the frost and snow with a plate-like object is difficult when the frost and snow has solidified, and if you force it, there is a risk of damaging the glass.

Also, it is a good preventive method to cover the whole army with sorting covers in advance, but the seat covers must be carried at all times, which adds up to a considerable amount of bulk and reduces the storage space in the trunk. There is a problem.

[Means for solving problems]

The present invention is a method invented in view of the above-mentioned problems.
J at ℃, when the coating amount is 30 μm in solid content,
Ball tack No. according to the DOW adhesion test method, a pressure sensitive adhesive with an adhesive strength of 1 or more with a solid content of 3 to 3
A frost and snow removing film coated with a 0μ coating is pasted on the window glass of a parked vehicle, and the frost and snow adhering thereto is removed by peeling the frost and snow removing film from the window glass. It is. Here, ball tuck No.
The adhesive strength is J, according to DOW's ball rolling method 15
° An adhesive plate is fixed on the inclined table, and the tack is indicated by the size of the maximum diameter of the ball that rolls and stops at a run-up distance of 10c+o. For example, if a 20/32 inch diameter ball stops, the pole tack number is 0.20, and if a 3732 inch diameter ball stops, the ball tack number is 0.20.
3 is displayed. The reason why the embrittlement temperature of the plastic film used in the present invention is limited to less than -30°C is that the base plastic film for frost and snow removal is a plastic that loses its flexibility at temperatures above 30°C. This is because it cannot be pasted in good condition.

The embrittlement temperature is the embrittlement temperature of a plastic resin tested in accordance with the JIS K 6301 low-temperature impact embrittlement test method.

The reason why the thickness of the pressure-sensitive adhesive is limited to 3 to 30μ in terms of solid content is that if it is less than 3μ, the adhesive strength to the glass surface is weak and there is a strong possibility that it will peel off easily. This is because it becomes difficult to peel off from the surface. Note that the adhesive does not necessarily need to be applied over the entire surface of the film, and may be applied in dotted, linear, or bordered forms. The thickness of the plastic film is not particularly specified, but a thickness of 50 to 300 .mu.m is preferable from the viewpoints of workability of pasting, strength required for removing frozen frost and snow, and economical efficiency. Further, it is preferable that the frost and snow removal film used in the present invention be packaged in a roll with the side previously coated with a pressure-sensitive adhesive facing outward, since this further improves the workability of pasting. Further, as the base material of the plastic film having a brittle temperature of less than 130° C., plastics such as high, medium, and low density polyethylene, polypropylene, EVA, EEA, and polyester are particularly preferable from the viewpoint of cost.

〔Example〕

The present invention will be described in detail. One side of a 100 μ thick, 300 mm wide film made of low-density polyethylene with a density of 0.92 was baked with silicone and released, and the other side was treated with corona discharge, and then coated with an acrylic adhesive “Toagosei Co., Ltd.” Product Name: Arontac 5-1511 CX') J with solid content thickness of 1μ, (Comparative Example 1), 3μ (Example 1), 30μ
(Example 2) and 40 μm thick (Comparative Example 2) adhesive films were prepared and wound up onto paper tubes each having a diameter of 30 mm with the adhesive side facing outward. These rolled up adhesive films were wrapped in a wind tunnel at 10°C and a wind speed of 5 m/sec on a transparent glass measuring 400 mm wide x 800 mm long x 2 ml thick. As a result of peeling resistance tests, Comparative Example 1 had weak adhesive strength and was easily peeled off by the wind, so it could not be stuck in good condition. It was able to be applied to the surface of the glass, and it did not peel off even with a wind blowing at 5m/sec.The adhesive films applied to these glasses were placed at a 60° angle in a cold room at -30"C with the film application side facing E for approximately 1m.
A mist of water at 5° C. was sprayed from a distance using a spray gun for 10 minutes each. As a result, it was possible to attach dewy ice chips to a thickness of 1 to 3 mm on the adhesive film on the glass. This was left in the same cold room at -30°C for 24 hours. The ice chips that adhered to the glass surface were 2 to 5 thick. As a result of examining the P and lI releasability of these adhesive films from the glass surface by manually peeling them in the same cold room at -30°C, it was found that Example 1.2 could be easily peeled off by hand. did it. In addition, no ice chips were attached to the glass surface, which maintained its transparency. Comparative Example 2 was completely pulled by hand and no scraps were formed. From the above results, it can be seen that an adhesive film having an adhesive coating thickness in the range of 3 to 30 μm in terms of solid content can be sufficiently used for removing frost and snow that has adhered to and frozen on a glass surface.

〔Effect of the invention〕

According to the method of the present invention, frost and snow that has frozen from falling and snowing on the windshield or windshield of an automobile can be removed by simply peeling off the frost and snow removal film that has been applied in advance from the glass surface. Frost and snow can be easily removed without causing any damage.

Claims (3)

[Claims] (1) On one side of a plastic film whose embrittlement temperature is less than -30°C, J. Ball tack No. according to DOW tack test method. A frost and snow removal film made by applying a solid pressure-sensitive adhesive having an adhesive strength of 1 or more to a thickness of 3 to 30 μm is attached to the window glass of a parked vehicle, and the frost and snow that adheres to the film is removed. A method for removing frost and snow adhering to a parked vehicle window glass, the method comprising removing frost and snow by peeling off a frost and snow removal film from the window glass. (2) The method for removing frost and snow adhering to a parked vehicle window glass as set forth in claim 1, wherein a pressure-sensitive adhesive is partially applied to one side of the plastic film. (3) The parked vehicle according to claim 1, wherein the plastic film is any plastic selected from the group of high, medium, and low density polyethylene, polypropylene, EVA, EEA, polyester, etc. How to remove frost and snow from window glass.