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Masking tape
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A technology for masking tapes and substrates, which can be used in adhesives, thin material processing, film/sheet adhesives, etc., and can solve problems such as complicated processes
Inactive Publication Date: 2008-09-10
LINTEC CORP +1
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Problems solved by technology
However, there are problems in that the process of attaching other components to the inner bottom surface of the slide rail as described above is complicated, and the cost of manufacturing the other components is incurred.
Method used
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Embodiment 1
[0064] As the base material, polyethylene terephthalate with a thickness of 100 μm, a tear strength of 210 mN / 15 mm in the machine direction, and a tear strength of 250 mN / 15 mm in the direction perpendicular to the machine direction, which was sandblasted on one side was used. Diol ester film (manufactured by Toray Corporation, matte Lumirror #100; melting point: 250° C.). In addition, the tear strength was measured according to JIS P8112 (the same applies hereinafter).
[0065] In addition, as a silicone-based pressure-sensitive adhesive, 60 parts by mass of an addition-type silicone pressure-sensitive adhesive (manufactured by Toray Dow Corning, SD-4580), an addition-type silicone pressure-sensitive adhesive ( Toray Dow Corning Co., Ltd., SD-4584) 40 parts by mass and a catalyst (Toray Dow Corning Co., Ltd., SRX212) 1.8 parts by mass were mixed and prepared.
[0066] The above-mentioned silicone-based pressure-sensitive adhesive was coated on the non-blasted surface of the...
Embodiment 2
[0068] As the base material, polyethylene terephthalate with a thickness of 100 μm, a tear strength of 215 mN / 15 mm in the machine direction, and a tear strength of 270 mN / 15 mm in the direction perpendicular to the machine direction, with a white coating formed on one side was used. Diol ester film (manufactured by Toray Corporation, PET T-Toray100; melting point: 260° C.).
[0069] In addition, as a silicone-based pressure-sensitive adhesive, 40 parts by mass of an addition-type silicone pressure-sensitive adhesive (manufactured by Toray Dow Corning, SD-4580), an addition-type silicone pressure-sensitive adhesive ( Toray Dow Corning Co., Ltd., SD-4584) 60 parts by mass and a catalyst (Toray Dow Corning Co., Ltd., SRX212) 1.8 parts by mass were mixed and prepared.
[0070] The silicone-based pressure-sensitive adhesive was coated on the surface of the substrate on which the white coating layer was not formed so that the thickness after coating and drying became 20 μm, and a m...
Embodiment 3
[0072] Except having used the silicone pressure-sensitive adhesive of Example 2 as a pressure-sensitive adhesive, it carried out similarly to Example 1, and produced the masking tape.
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Abstract
A masking tape (1) for a long section is provided with a base material (11) and an adhesive layer (12), and the tear strength of the base material (11) in the width direction is 220mN / 15mm or more. Especially it is preferable that the base material (11) is composed of a material wherein a machining direction is generated during manufacture, the machining direction of the base material (11) is the longitudinal direction of the masking tape (1), and the tear strength of the base material (11) in a direction orthogonally intersecting with the machining direction is 220mN / 15mm or more. Such masking tape (1) does not easily generate a tape cut.
Description
technical field [0001] The present invention relates to a masking tape for elongated parts, such as a masking tape for masking an inner bottom surface in a slide rail for a sliding door of an automobile. Background technique [0002] In vehicles such as box-shaped utility vehicles, trucks, and RVs (Recreational Vehicles), sliding doors are often applied to the rear door. The sliding door is opened and closed by the roller edge arranged on the inner side of the sliding door being rolled on the inner bottom surface of the sliding rail by the sliding rail guide edge installed on the vehicle body. This slide rail is usually an elongated member having an opening in the longitudinal direction, and one end thereof has a curved shape (see Patent Document 1). [0003] In the production line of automobiles, generally speaking, the slide rail is mounted on the car body and then painted, but at this time, a coating film of paint or a mist of paint may be formed on the inner side of the...
Claims
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Application Information
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