Matte paint film, and matte paint composition

摘要

A matte paint film includes a synthetic resin component as a paint film forming primary element, and silica particles having an average particles size D1 in a range of D1 </= 2 mu m and synthetic resin particles having an average particle size D2 in a range of 8 m </= D2 </= 50 mu m as a matting agent. The weight proportion Pw of matting agent incorporated per 100 parts by weight of the synthetic resin component is set in a range of 20 parts by weight </= Pw </= 100 parts by weight. The weight ratio Wr (W1/W2) of the weight W1 of silica particles incorporated in the. matting agent to the weight W2 of synthetic resin particles incorporated in the matting agent is set in a range of 20/80 </= Wr </= 70/30, and the thickness t of the paint film is set in a range of 8 mu m </= t </= 30 mu m. A 60 DEG incident ray L1 is absorbed and/or irregularly reflected mainly by the silica particles in the film surface. On the other hand, a 85 DEG incident ray L2 is irregularly reflected and/or absorbed mainly by the synthetic resin particles partially protruding on the film surface and the silica particles deposited on the surfaces of such synthetic resin particles.