Decorative sheet and decorative material using same
A decorative material and decorative sheet technology, applied in the field of decorative sheets and decorative materials, can solve the problems of reduced concentration, damage to the surface of decorative sheets, and insufficient weather resistance, and achieve good weather resistance, excellent long-term adhesion, and initial The effect of high adhesion strength
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Embodiment 1
[0251] On one side of a double-sided corona-discharge-treated substrate (an 80-μm-thick titanium oxide-containing polypropylene resin sheet (also referred to as "polypropylene-based resin sheet PO-1")), the coating was applied by gravure printing. The ink for the decorative layer comprising a two-component curing type acrylic-urethane resin and a colorant was dried to form a decorative layer of a wood grain pattern with a thickness of 3 μm.
[0252] Next, an ink for a back primer layer containing a two-component curable urethane-nitrocellulose hybrid resin was applied and dried on the other side of the substrate to form a back primer layer with a thickness of 3 μm.
[0253] Next, an adhesive layer containing a urethane resin-based adhesive with a thickness of 3 μm was formed on the decorative layer, and a polypropylene-based resin was heated, melted and extruded on the adhesive layer using a T-die extruder. A transparent resin layer with a thickness of 80 μm was formed.
[02...
Embodiment 2～7
[0268] [Examples 2-7], [Comparative Examples 1-5]
[0269] Example 2 was obtained in the same manner as in Example 1, except that the compounding amounts of the radical scavenger i and the radical scavenger ii-a to the ionizing radiation curable resin composition in composition A were changed as in Table 1. ~7 and the decorative sheets of Comparative Examples 1-5. About the obtained decorative sheet, evaluation and measurement were performed based on the said method. Table 2 shows the evaluation and measurement results.
Embodiment 8
[0271] The decorative sheet of Example 8 was obtained in the same manner as in Example 1 except that the radical scavenger ii-a in the composition A was changed to the following radical scavenger ii-b. About the obtained decorative sheet, evaluation and measurement were performed based on the said method. Table 2 shows the evaluation and measurement results.
[0272]
[0273] 2,4-bis[N-butyl-N-(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)amino]-6-(2-hydroxyethylamine )-1,3,5-triazine (amino ether type, having a functional group (hydroxyl group) capable of reacting with the functional group (isocyanate group) of the constituent components of the undercoat layer)
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