Base for masking tape for coating and masking tape for coating
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A tape and paint technology, which is applied in the direction of surface coating liquid devices, coatings, adhesives, etc., can solve the problems of paint falling off, poor followability of curved surfaces, and adhesive layer peeling residues, etc.
Inactive Publication Date: 2003-04-16
DEXERIALS CORP
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Problems solved by technology
For example, when crepe paper is used, the impregnated resin used to improve the paper quality is immersed in the painted surface under the condition of paint baking, or it lacks the ability to follow complex curved surfaces, and the boundary line is poor.
When polyester film is used, the position where the tape can be applied is limited due to poor surface followability
In the case of using soft vinyl chloride, although it is excellent as a substrate that improves the shortcomings of crepe paper and polyester film, after coating and baking the paint for painting, if it is peeled off, if If the temperature is as low as 5-10°C, the base material is easy to break, and
Method used
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[0057] Examples 1-8, Comparative Examples 1-3
[0058] On the surface of the polyolefin resin film (PP-PE block copolymer, PP-PE random copolymer, and PE, all of which are manufactured by Toyobo Co., Ltd.) with the physical properties shown in Table 1, Table 2 and as described below, corona modification treatment was applied to prepare F1-F6 paint protection tape substrates provided with a modified resin layer (see Table 1 for thickness) and an adhesive layer (see Table 1 for thickness).
[0059] (Corona modification treatment conditions)
[0060] Current 1.05A
[0061] Voltage 4.7KV
[0062] Processing speed 180m / min
[0063] (Film formation of modified resin layer)
[0064] On one side or both sides of the corona-modified polyolefin resin film, the composition for forming a modified resin layer (Pannacia SP709 (white, containing polyisocyanate), manufactured by Dainippon Ink Corporation) 4-7μm (Dry thickness) to form a modified resin layer.
[0065] (Film formation of adhesive l...
Example Embodiment
[0134] Example 9
[0135] Acrylic resin adhesive, with n-butyl acrylate as the main component, as the functional group, in 100 parts by weight of a carboxyl and epoxy-containing polymer solution (resin content 30%), mixed with butyl etherified melamine resin ( Resin component (50%) 1.8 parts by weight and dinonylnaphthalenesulfonic acid (55% isobutanol solution) 0.2 parts by weight to prepare an acrylic resin adhesive composition. This solution was coated on the corona-treated surface of the base material F2 for painted protective tape in Table 1, and dried to form an adhesive layer, thereby obtaining a painted protective tape.
Example Embodiment
[0136] Example 10
[0137] In 100 parts by weight of the adhesive composition used in Example 9, 1.0 part by weight of chlorinated PP (S206 (resin content 50%) manufactured by Nippon Paper Co., Ltd.) was blended to prepare an acrylic resin adhesive composition. Otherwise, it was the same as in Example 9, and a paint protection tape was produced.
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Abstract
A base (1) for a masking tape for coating, which is made of a polyolefin resin film having an elastic modulus of 15 to 55 kgf/mm<2>, both surfaces of the film being modified by irradiation with corona or the like; a base (2) as set forth above, wherein a layer of a modified resin such as a polyester-urethane resin or the like is formed on at least one surface thereof; and a masking tape (3) for coating, produced by forming a layer of a pressure-sensitive adhesive comprising a thermoplastic saturated block polymer, a thermoplastic unsaturated block polymer and a tackifier or a layer of a cross-linked acrylic pressure-sensitive adhesive on one surface of the base (1). The polyolefin resin of the base (1) is a polypropylene-polyethylene block copolymer or the like, while the acrylic pressure-sensitive adhesive of the tape (3) is one containing a chlorinated polypropylene resin or the like. The use of the above base enables the production of a masking tape which is excellent in follow-up properties, gives a clear parting line, and can be peeled off without leaving any residue.
Description
technical field [0001] The present invention relates to a protective tape used in painting (hereinafter referred to as paint protective tape), which relates to vehicles, automobiles, etc., which can be easily peeled off and can form beautiful dividing lines after the paint is hardened and the tape is peeled off after baking the paint. , Protective tape for paint masking that does not pollute the painted surface and has excellent sticking workability. Background technique [0002] On the outer panels and bumpers of vehicles such as cars, buses, and trains, various combinations of colors are designed based on functions and conceptual patterns. At this time, in order to separate the paint and protect the parts that are not painted, a paint protection tape is used. [0003] The properties required for the paint protective tape are as follows: good adhesion to the curved surface of the painted body with complex shapes, good accuracy of the boundary line after painting and baking...
Claims
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Application Information
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