Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1984-07-02
1986-03-25
Ball, Michael
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
264176F, 2642108, D04H 316
Patent
active
045781346
ABSTRACT:
A process for the production of spunbonded webs by the aerodynamic drawing of filaments or filament rows which are drawn by means of air currents divided into component currents whereby the air current is divided into a conditioning current and a drawing current for the conduction and the drawing of the filaments or filament rows, and into a deposition zone current for the fixation of the web, which is deposited in random texture, in its transportation on the perforated collecting screen, and the deposition zone current being sucked off, together with the spinning space current, in a plurality of zones and being returned to the spinning room as a holding current. An additional spinning room current for balancing out the overall system is introduced into the spinning room. The conditioning current and the drawing current are introduced in solely added air mode and the depositing current and holding current are, respectively, within and without in mostly circulated air mode.
REFERENCES:
patent: 3991250 (1976-11-01), Hartman et al.
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