| 摘要 |
PCT No. PCT/SE92/00271 Sec. 371 Date Oct. 22, 1993 Sec. 102(e) Date Oct. 22, 1993 PCT Filed Apr. 24, 1992 PCT Pub. No. WO92/19198 PCT Pub. Date Nov. 12, 1992.An arrangement for depositing particles onto a moving material web includes a particle dispenser and a perforated belt which moves over the material web. According to the invention, the particle dispenser is intended to dispense particles continuously in a uniform and wide flow whose width is equal to or somewhat greater than the width of the hole-pattern of the belt and the belt is spaced at a distance from the material web which is at least sufficiently large for the particles deposited on the material web to be accommodated between the belt and the web. The arrangement also includes means which function to remove particles caught by the belt without the particles falling down onto the underlying material web. These means are located downstream of the particle dispenser. The invention also relates to a method for depositing particles to a moving material web. |
