JPH0349538Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a gap shielding tape for a sink.

If the gap between the sink and the gas stove or cooking table is left open, cooking waste and water will enter the gap, making it unsanitary. For this reason, the above-mentioned gap is closed with a single-sided adhesive aluminum foil tape.

However, aluminum foil adhesive tape is prone to wrinkles, and when such tape is used as gap-shielding tape for sinks, hot pots, kettles, etc. may come into contact with the aluminum foil, and the aluminum foil at the contact point may be partially damaged. Thermal expansion occurs and thermal stress occurs, and this thermal stress causes the aluminum foil to locally stretch beyond the elastic limit of the aluminum. If such local stretching is repeated frequently in different parts, the shielding tape will have a lot of stress. Cracks appear, the appearance deteriorates, and the adhesive surface eventually peels off.

By the way, as a conventional waterproof tape, one in which aluminum foil is laminated on the surface of a polyester film has been widely used as a packaging material and the like.

However, if the adhesive tape of this laminated tape is used as a sink gap-shielding tape in place of the aluminum foil adhesive tape, it is possible to prevent the above-mentioned wrinkles from occurring due to lamination with a polyester film.

However, as a result of the aluminum foil surface coming into contact with moisture in addition to the heat described above, the aluminum foil surface oxidizes and quickly loses its gloss, resulting in a deterioration in appearance from such a surface. Inevitable.

The gap shielding tape for sinks according to the present invention is an improved version of the above laminated tape to be suitable for gap shielding for sinks. An aluminum foil layer is provided on the surface of the polyester film, and an epoxy anti-corrosion layer is provided on the surface of the aluminum foil layer. This is a structure characterized by providing an adhesive layer on the back side of the same film.

The present invention will be explained below with reference to the drawings.

In FIG. 1, numeral 1 is an aluminum foil with a thickness of 7 to 50 μm. 2 is a polyester film having a thickness of 12 to 50 μm, and usually the same thickness as aluminum foil 1 is used. 3 is an adhesive layer for bonding the aluminum foil 1 and the polyester film 2, for example, a urethane adhesive layer, and the thickness is 1/5 to 1/8 of the thickness of the aluminum foil or polyester film, and is usually , 3-5 μm. 4 is an epoxy anticorrosion layer provided on the surface of the aluminum foil 1, and has a thickness of 2 to 4 μm. Therefore, transparency that allows the surface of the aluminum foil to be seen through can be sufficiently guaranteed.

The back surface 20 of the polyester film 2 is roughened by electrical discharge treatment to increase adhesiveness. Sputter etching treatment, corona treatment, etc. can be used for the discharge treatment. Reference numeral 5 denotes an adhesive layer provided on the back surface 20 of the polyester film to be subjected to discharge treatment, for example, an acrylic adhesive can be used, and the thickness is usually 20 to 40 μm. 6 is adhesive layer 5
This is a separator temporarily attached to the

Figure 2 shows how the tape A of the present invention is used, spanning a sink and a gas stove or cooking table.
It is attached with an adhesive layer.

The sink gap shielding tape according to the present invention has the above-mentioned structure, and since the surface of the aluminum foil is coated with an epoxy anti-corrosion layer, it is exposed to repeated heat and moisture contact from hot kettles, pots, etc. Even if the aluminum foil is exposed to heat, the heat resistance and waterproof properties of the epoxy anti-corrosion layer can effectively prevent oxidation of the aluminum foil surface. In addition, the adhesive strength between the anti-corrosion layer and the aluminum foil can be made sufficiently strong due to the excellent adhesion between the epoxy of the anti-corrosion layer and the aluminum foil. Therefore, oxidation of the aluminum foil due to water entering the interface between the anticorrosion layer and the aluminum foil can be prevented. It is also possible to prevent the occurrence of wrinkles, which has already been described for polyester films.

Therefore, the appearance of the water-blocking tape can be well maintained for a long period of time because the excellent gloss of the aluminum foil can be maintained and the appearance of wrinkles can be prevented.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the gap shielding tape for a sink according to the present invention, and FIG. 2 is an explanatory diagram showing the usage state of the tape of the present invention. In the figure, 1 is aluminum foil, 2 is polyester film, 20 is the back side of polyester film, 4
5 is an epoxy anticorrosion layer, and 5 is an adhesive layer.

Claims (1)

[Scope of utility model registration request] A gap shielding tape for a sink, characterized in that an aluminum foil layer is provided on the back side of a polyester film, an epoxy anti-corrosion layer is provided on the surface of the aluminum foil layer, and an adhesive layer is provided on the back side of the same film.