| 摘要 |
PCT No. PCT/JP92/00715 Sec. 371 Date Apr. 2, 1993 Sec. 102(e) Date Apr. 2, 1993 PCT Filed Jun. 3, 1992 PCT Pub. No. WO92/22009 PCT Pub. Date Oct. 12, 1992.A reflection type projection screen is constituted as follows. Provided in order on a light absorbing layer 5, which is a dark plastic sheet or a solid print of a dark ink, are a fibrous sheet 4 of glass fibers, a white, opaque base material sheet 3made with a plastic sheet, and a light diffusing layer 2 of a translucent plastic into which a lustrous pigment or calcite powder is incorporated. An emboss 9 is formed on the outer surface of the light diffusing layer 1. It is preferable that a reflection layer 2 printed with an ink containing a lustrous pigment or calcite powder is provided below the light diffusing layer 1. Light absorbing stripes 11 are provided each at a position corresponding to a concave portion 9a of the emboss 9 on the surface of the base material sheet 3 adjoining the light diffusing layer 1. A production process and a production apparatus of a reflection type screen, which can efficiently produce reflection type screens with the emboss are also disclosed.
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