| 摘要 |
<p>PURPOSE:To prevent the trace of sticking from coming up in printed matters at the time of photomechanical process, by sticking originals so that a bonding agent containing a white pigment comes out from the peripheral margin of the originals. CONSTITUTION:Sticking originals 2 which contain compositions, pictures, etc., and have various sizes are sticked to a white ground paper 1 of paper, plastic, etc., with the bonding agent 3 containing a white pigment of this invention in such a way that the bonding agent 3 comes out from the peripheral margin of the originals 2. Printed matters, graphs, plans, printing papers, etc., of various sizes can be used as the sticking originals. Although it is desirable to use natural bonding agents, such as gum arabic, starch, etc., as the bonding agent, synthetic bonding agents can also be used. Titanium dioxide, zinc oxide, magnesium oxide, lithopone, hydroxy zinc carbonate, etc., are used as the white pigment. Since the bonding agent comes out from the originals, lights are irregularly reflected by the white pigment contained in the agent and, therefore, printed matters free from any sticking traces can be obtained.</p> |
