PURPOSE: To obtain fine and sharp multi-color decorative sheet by a method wherein liquid coloring material layers having a plurality of colors are formed successively onto a releasable base material and then sheet-like designed material obtained by removing the releasable base material from the layers is granulated and the resultant granule aggregate is hot-rolled.
CONSTITUTION: Liquid coloring material layers are successively formed by coloring material layer forming devices 2, 5, 8 and 11 onto the releasable base material 1 utilizing thermoplastic resin as binders and, after each formation of layer, the respective layers are dried in ovens 3, 6, 9 and 12 respectively. After drying, sheet-like designed materials are obtained by being cooled on cooling rolls 4, 7, 10 and 13 respectively. Then the sheet-like designed material 14 obtained by removing the releasable base material 1 is crushed in succession at a grinder 15 in order to obtain the granule 16 of designed material. Next, the granule aggregate is heat-rolled by a calender roll in order to obtain the multi-color decorative sheet. The sheet-like designed material 14 consists of the coloring material layers (a), (b), (c) and (d) having four different colors.
YANAGIHARA YUTAKA
KAWAGUCHI YUKIO
| JPS526754A | 1977-01-19 | |||
| JPS5150965A | 1976-05-06 |