Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Projecting particles in a moving gas stream
Patent
1980-11-03
1982-04-13
Hall, James R.
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
Projecting particles in a moving gas stream
264122, 264518, B27J 500
Patent
active
043247539
ABSTRACT:
A method of forming an air laid web of hydrogen bonded wood pulp fibers is disclosed. More specifically, a paper producing method is disclosed wherein microencapsulated hydrogen bond promoting material is thoroughly premixed with wood pulp fibers. The mixture is then air laid on a moving screen to form a three dimensional continuum. The microcapsules may then be ruptured by heat and/or pressure to release the hydrogen bond promoting material evenly throughout the continuum. The continuum may then be heated or pressed to further consolidate the web.
REFERENCES:
patent: 4083913 (1978-04-01), Marshall
patent: 4112037 (1978-09-01), Parker et al.
patent: 4264290 (1981-04-01), Dunkerly
Hall James R.
Sommer Evelyn M.
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