Importance

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Abstract

A workpiece comprising an aggregation body of platelike articles, sheet-like whose fibers have been opened by rolling, stick-like articles formed by finely tearing them from a single plate, flake-like articles, strand-like articles or the like is inserted between an upper heat plate 12 and a lower heat plate 13 of a heating press apparatus 10. A spacer 14 for surrounding the workpiece and determining the final thickness of the product is arranged on one or both of the heat plates before or after the insertion of the workpiece 11. The workpiece is compressed by the upper heat plate 12 and the lower heat plate 13 to thereby form an air tight compartment made of the upper heat plate 12, the lower the plate 13 and the spacer 14, and containing the workpiece. The air tight compartment is decompressed by vacuum for a predetermined period, then steam or heated gas is jetted onto the workpiece in the compressed air tight compartment. Preferably, a decompressing is ensured again after jetting the steam or the heated gas, resulting in the final thermocompressed aggregation product.

First Claim