JPH0414202Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a contamination removal sheet for use in kitchen exhaust hoods, air purification devices used in computer rooms, etc.

Problems to be Solved by the Invention When kitchen exhaust hoods become contaminated with oil stains, etc., it is undesirable from the standpoint of fire prevention and hygiene, and the contamination must be removed periodically. This is normally carried out by professional cleaning companies, but this requires a large amount of money and time, and since cleaning work is usually carried out on holidays or late at night, it requires a large number of workers. It is difficult to secure the

In addition, in air purification equipment, electricity is passed through the aluminum plate and the generated static electricity is used to absorb minute dust, but the aluminum plate contaminated with dust must be cleaned with an alkaline solution two to three times a month. . For this reason, the solution after cleaning sometimes caused pollution problems.

The purpose of this invention is the above-mentioned kitchen exhaust hood,
To provide a sheet that can easily remove contamination from an air purifying device or the like.

Means to Solve the Problem The decontamination sheet according to this invention has an adhesive layer provided between a plurality of aluminum foil layers stacked on top of each other, and the tensile strength of the aluminum foil layer is determined by the peel adhesion of the adhesive layer. It is made to be superior to strength.

How it works: If you attach the sheet to a hood or replace it with the aluminum plate of an air purification device, if the outer surface of the sheet becomes contaminated, the contamination can be removed by peeling off one piece of the outermost aluminum foil of the sheet. The sheet is removed together with the aluminum foil and the underlying aluminum foil is exposed, giving the sheet a beautiful outer surface again.

Example As shown in FIG. 1, the contamination removal sheet has an adhesive layer 2 provided between a plurality of aluminum foil layers 1 stacked on top of each other, and the tensile strength of the aluminum foil layer 1 is equal to the adhesive layer 2. The peel adhesion strength is superior to that of

For the aluminum foil layer 1, an aluminum foil having a standard of AIN30-H18 and a thickness of 20 μm is optimal from the viewpoint of tensile strength and cost. In addition to this, the thickness is 5μ~
Aluminum foil of about 100μ can also be used.
The optimum peel adhesion strength of the adhesive layer 2 is approximately 1 kg/15 mm width using the T-peel test method. The same strength is 2
If the width is more than Kg/15mm, it will be difficult to pull it off by hand, and if it is less than 500g/15mm width, it may peel off when the sheet is handled when pasted.

The sheet manufacturing process will be explained. First, apply thermoplastic resin adhesive to aluminum foil in the amount
Part coat with 1 g/m ² using a gravure coater and dry at 160°C for about 30 seconds.
Examples of thermoplastic resin adhesives include those based on vinyl chloride, vinyl acetate, polyester, polyamide, and polyolefin. As shown in FIG. 2, the coating pattern is generally a checkerboard pattern, but each line 3 that divides the grid is provided with a defect 4 that serves as an air vent when the aluminum foils are overlapped. The size of one of the grid stripes is 100 mm square, and the width of line 3 is 2 mm.
Next, the aluminum foil coated with adhesive is layered in the required layer, for example, about 10 to 20 layers, and this is sandwiched between heat rolls and heated to about 120℃, and then heated at 5 kg/cm for about 1 second. Crimp.

Next, with reference to FIG. 3, a construction example in which the sheet is attached to the inner surface of a kitchen hood will be described. First, dirt on the inner surface of the hood 5 is removed using a scraper or the like. on the other hand,
Cut the sheet according to the inner shape of the hood 5,
A plurality of sheet pieces 6 of suitable shapes are prepared in advance.
After this, an epoxy adhesive is applied to the inner surface of the hood 5 from which dirt has been removed, and the prepared sheet piece 6 is pasted thereon. Furthermore, as shown in FIG. 4, the periphery of each pasted sheet piece 6 is pressed down with an aluminum plate 7, and perforations 8 are made along the side edge of the aluminum plate 7 using a cutter or the like. Put it in. The aluminum plate 7 is pot-pristed to the hood 5. When the outermost aluminum foil of the sheet piece 6 is pulled by hand, the adhesive layer 2 is peeled off and the aluminum foil is torn along the perforations 8 and peeled off from the aluminum foil below.

Effects of the invention According to this invention, contamination can be easily removed by simply peeling off the outermost layer of aluminum foil.

[Brief explanation of the drawing]

Figure 1 is a side view showing an embodiment of this invention, Figure 2 is a side view showing an embodiment of this invention.
3 is a perspective view showing a construction example of this invention, and FIG. 4 is a sectional view taken along the line - in FIG. 3. 1... Aluminum foil layer, 2... Adhesive layer.

Claims (1)

[Scope of utility model registration request] An adhesive layer 2 is provided between a plurality of aluminum foil layers 1 stacked on top of each other, and the tensile strength of the aluminum foil layer 1 is made to exceed the peel adhesion strength of the adhesive layer 2. sheet.