Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1988-07-12
1989-08-29
Dawson, Robert A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
118308, 118612, 156216, 156276, 156324, 427202, 428129, 428206, 604367, B32B 3112
Patent
active
048614050
ABSTRACT:
A laminated continuous sheet which, when cut, forms individual disposable diapers is moved at high speed in the direction of the length thereof, whereby in an air zone of predetermined thickness disposed on at least a predetermined surface of the laminated continuous sheet, there is produced with the travel of the laminated continuous sheet an air flow having a velocity gradient such that the speed of the air flow increases as the predetermined surface is approached. Baby powder is fed at a position within the air zone of predetermined thickness so that it contacts the air zone. By utilizing a decreasing-pressure phenomenon produced by the air flow having a velocity gradient described above in which the pressure decrease as the predetermined surface of the laminated continuous sheet is approached, baby powder is caused to adhere to the predetermined surface as it is drawn toward the predetermined surface of the laminated continuous sheet.
REFERENCES:
patent: 4627990 (1986-12-01), Saga et al.
patent: 4753643 (1988-06-01), Kassai
Aprica Kassai Kabushikikaisha
Dawson Robert A.
Fasse W. G.
Kane, Jr. D. H.
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