| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a backing material of a floor as a directly laid raising material of low floor type and a manufacturing method of such backing material, with which it is possible to make uneveness pursuit for the surface of a floor base board having a comparatively small uneveness and to equip a good material characteristic and good processing and working characteristics as a floor backing material. SOLUTION: A mixture of inorganic powder and granular material and a thermosetting resin is applied on a flexible felt or sheet 11 to form a layer having an arbitrary thickness, or otherwise, the flexible felt or sheet 11 is placed on mixture formed by applying into a layer followed by a hot press molding, and thereby a plate is yielded in which the felt or sheet 11 is consolidated with inorganic material molded layer 12. A slit 13 is provided in this layer of the plate so that a backing material 1 of floor is completed.</p> |
