D - Textiles – Paper – 21 – J
Patent
D - Textiles, Paper
21
J
D21J 5/00 (2006.01)
Patent
CA 2240518
The invention relates to a method and an arrangement for manufacturing a fibre product. The method and the process are characterised in that a first male mould (6) is immersed in stock in a moulding tank (2a). By means of a vacuum, fibres are induced to form a fibre layer of predetermined thickness on the male mould (6). The male mould (6) is thereafter removed from the moulding tank (2a) and a female mould (8) is brought under force against the male mould (6) in order to express the stock water, following which the fibre product (P) is transferred to the female mould (8). A second male mould (10) is brought under force against the female mould (8) so that the fibre product is subjected to pressing in order to increase the dry solids content of the fibre product and give this a predetermined external structure, following which the fibre product (P) is released and subjected to final drying under the effect of microwave or IR radiation.
L'invention concerne un procédé et un système pour fabriquer un produit fibreux. Dans ce procédé, un premier moule mâle (6) est immergé dans une suspension contenue dans un réservoir de moulage (2a). L'application d'un vide induit la formation d'une couche de fibres d'une épaisseur prédéterminée sur le moule mâle (6). Le moule mâle est ensuite sorti du réservoir de moulage (2a) et un moule femelle est appliqué avec force sur le moule mâle (6) afin d'expulser l'eau de suspension. Durant cette opération, le produit fibreux (P) est transféré sur le moule femelle (8). Un second moule mâle (10) est appliqué avec force contre le moule femelle (8), de sorte que le produit fibreux est soumis à une compression, ce qui augmente sa teneur en matières solides et confère au produit une structure externe prédéterminée, suite à quoi le produit fibreux (P) est libéré et soumis à un séchage final par des micro-ondes ou des radiations infrarouges.
Celtec Development Ab
Goudreau Gage Dubuc
LandOfFree
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