To provide a paper-made protective sheet that is a coating and protective material suitable for preventing the interior and the floor face of a building during the period of the construction or suitable for protecting inner walls, columns and pillars against damage, and has the functions of being resistant to breakage, water, further water-repellent, and ski-proof.
A sizing agent, a water-repelling agent, an antislipping agent and a water-proof agent are added to coated so that the unit weight may become 50-250 g/m2; cob water absorption may be set to ≤150 g/m2 (on both front and back faces); the water repellency may be R0-R10 (on both front and back faces); the burst strength may be ≥2.5 kg/cm2; the wet burst strength may be ≥0.75 kg/cm2; the friction coefficient μ may be >0.18. Then, the resultant base paper is fluted to give the objective protective sheet to which extensibility is imparted.
| JPS5854996 | [Title of the device] Roll |
| JP2001038829 | VISCOUS LIQUID COATING APPARATUS |
| JPS5711042 | MANUFACTURE OF CORRUGATED CARDBOARD |
OOTANI TAKENOSUKE
TOMITA MASAMITSU
