| 摘要 |
<p>The paper comprises 50-70% cellulose sulphate with prehydrolysis, chemically modified and whitened, 10-30% cotton type cellulose, and 10-20% viscose silk chemical cellulose impregnated with thermoactive resin. The paper is coated with resol type phenolformaldehyde resin alcoholic soln. (45-50%) with rolling at 8-10 m/min.. The resin (50-60 g/m2) corresponds to a 16-18% paper content.</p> |
