| 摘要 |
The invention relates to a composite material for manufacturing heat-pressed items, to a process and an installation for manufacturing the same as non-woven material. The claimed material comprises a mixture of polypropylene fibres with a length of 4...60 mm and fineness of 7...16 DEN, in a ratio ranging between 40 and 50% of the total mixture weight, with vegetable fibres at a fibre fineness of about 70...80 DEN and a fibre length ranging between 5 and 100 mm, in a ratio ranging between 60 and 50% of the total mixture weight. The process for manufacturing the claimed composite material consists in taking over and dosing the components, followed by a mixing and a coarse defibering thereof and then by a fine mixing with a four-chamber mixer and an opening of natural fibers to a fineness of 70...80 DEN, followed by reinforcement of fibers and, finally, by rolling the resulting fiber sheet as a roll. The installation for manufacturing the claimed composite material has a modular structure, comprising two modules (1 and 2) for feeding the components, two modules (3 and 4) for weighing and dosing the components, a primary mixing and coarse defibering module (5), a module (7) for fine mixing and fibre opening, an interweaving module (8) and a module (9) for pulling and winding. |
