PL223B1 - A method of producing tight and durable pressed cork boards, especially for floors and for lining walls. - Google Patents

Description

There is already a known method of producing embossed cork boards for covering or lining, in which, by pressing in the form of saturated steam or water, finely chopped cork is produced, which is then dried in this form by heating and sprayed on individual thin plates. However, this method has a number of serious disadvantages: for the finished product to have the necessary accuracy, the pressed cork block had to be subjected to a lot of pressure, which made the following drying process very difficult, because the block was dense and conductive badly from the outside. very strongly heated, as long as the heating was also to reach the inner parts of the log. The outer edges of the log were then heated in such a way that the substance of the cork changed partially, as a result of which the material stained unevenly, even at a time when heating had not yet reached the inside, in order to remove the moisture therein. There was no question of the homogeneity of the product. Moreover, the separation of the dried-up log was not possible on the log machine due to its fragility and could only be achieved by spraying, which resulted in a lot of waste, due to the relatively small thickness of the lining panels at least 50% Moreover, it was not possible to obtain layers of different values, which are then combined into bundles. Steaming or wetting the cork before pressing can be applied only to the higher layers, regardless of whether these layers consist of a better material or that the same as the rest; consequently, by co-folding, only the above-mentioned upper layer becomes thicker and more compact than the other layers. It also has the advantage that the cork board receives a higher elasticity, and that less cork is enough to achieve a certain thickness of the board, because the lower layers are subject to less compression. In any case, cork boards with great uniformity and strength are obtained. with completely tight and smooth surfaces. These boards can be made so rationally and cheaply that they can compete with any and so good tree to be laid, while at the same time surpassing any tree for displaying with its particular advantages (extraordinary isolation efficiency from heat and voice, completely unchanged nosc volume), not to mention the original and aesthetic appearance. PL

Claims (5)

Claims: 1.) A method of producing compact and durable crumpled cork boards, especially for floors and wall cladding, characterized by an appropriate number of thin layers obtained by separating a crowded cork block, one on the second, it is subjected to pressure, then the resulting pressed, tight board is dried by heating, because the individual layers are connected with each other by pressing with a suitable mortar, because drying takes place to avoid the transformation of the cork substance at a relatively low temperature, while the individual layers fuse with each other as a result of the action of the resin which is released from the cork material when the higher temperature is used. 2.) Variant of the method according to claim 1, characterized in that the packet is subjected to a pressure higher than the pressure used to manufacture the starting block. 3.) Variation of the method according to claims 1 and 2, characterized in that a better cork material is used for the uppermost layers of the packets. 4.) Variation of the method according to claims 1 and 2, characterized in that the layers of the package are either steam-treated or wetted before rolling, in order to make them thicker in a known manner. 5.) Variation of the method according to claims 1, 2, 4 or 3, characterized in that only the top layer is evaporated or wetted, so that this layer becomes tighter than the other layers by continuous pressing. ¬ Well, the pressure can also be lowered as long as the cork plates are to retain their elasticity. ! 7AKLGRAF.K0ZIANSKICH IN WARSAW - with - -Azj; o Aae 'kaioa o29uozoops 90opf 9u -zoj BAvp 5rs BiqBjXA \ npo o; uiAjo; ^ m '9ZSZIU ^ MJSJBM tpZlUB' o ^ ZSC interface n | "Bfj9; -BUI Z 5lS DBpEp [S feSoiU ^ M ^ SJ ^ M 9I2JB1 9iMp Z9} qrq 'bausjbm ^ zsz ^ Mf ^ * i { {ifq qojiiM qosods U9; m XqB 'bujAj. 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