Patent ID: 6103179
Filing Date: 2000-08-15
Classification: D21J

Abstract:
Method of manufacturing a fibre product from stock with a predetermined fibre/water concentration and containing predetermined additives and chemicals the method comprising the steps of:a. pumping the stock to a moulding tank,b. immersing a first male mould in the stock in the moulding tank wherein fibres in the stock are induced by means of a vacuum to successively form a fibre layer of predetermined thickness for the fiber product,c. removing the first male mould from the moulding tank to assume a first predetermined position,d. performing a cyclical sequence of movements with a female mould in which, in a first pressing stage, the female mould is brought under force against the male mould in the first predetermined position, so that a first expressing of stock water occurs, following which the fibre product is transferred to the female mould which is moved to a second predetermined position,e. performing an operating cycle in which, in a second pressing stage, a second male mould is brought under force against the female mould in the second predetermined position, so that the fibre product is subjected to a second expressing, following which the female mould assumes a third predetermined position in which the fibre product is released therefrom, andf. subjecting the fibre product to final drying using microwave or IR radiation.