Paper making and fiber liberation – Processes and products – Including solid non-waterlaid preform
Patent
1982-09-27
1984-04-10
Chin, Peter
Paper making and fiber liberation
Processes and products
Including solid non-waterlaid preform
156 51, 156 56, 427118, D21D 300
Patent
active
044419619
ABSTRACT:
A method and apparatus to apply pulp to a telecommunications conductor with an adhesive which is formed from acrylic resin solution. The solution is applied in a bath and is passed between wiping rolls with the feed speed of the conductor and the differential speed between the peripheral surfaces of the wiping rolls and the conductor being controlled together with the contact angle between the conductor and the rolls. This control results in a dried thickness of resin of no greater than 0.00015 inches and as little as 20 microns after further stages in the method. These steps include drying the solution in a solution drying oven, coating the adhesive with pulp and drying the pulp coated conductor. For absolute control of the process, it is preferred for the wiping rolls to be moving in the opposite direction to the conductor at regions of contact with the conductor, for the solution to be prevented from drying as it passes between the wiping rolls, and for there to be continuous relative reciprocating movement between the conductor and the wiping rolls in the axial direction of the rolls.
REFERENCES:
patent: 2440802 (1948-05-01), Krogel
patent: 3525652 (1970-08-01), Tanaka
patent: 4218285 (1980-08-01), Durr et al.
patent: 4298630 (1981-11-01), Kapuscinski et al.
Axiuk Oleg
Porter John F.
Walling Joerg-Heim J.
Austin R. J.
Chin Peter
Northern Telecom Limited
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