Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1984-04-23
1986-08-05
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
428156, 428283, 428284, 428286, 428297, 428298, 428299, 428300, 428326, 428913, B32B 300
Patent
active
046043136
ABSTRACT:
The invention generally provides for formation of meltblown material containing wood fiber on to a continuous foraminous belt. During formation a polymer and wood fiber first layer is applied to a moving belt from at least one bank of meltblown forming apparatus. This first layer does not contain superabsorbent. The belt carrying the first layer passes beneath at least one further source of meltblown fiber into which superabsorbent is added along with the wood fibers. This provides at least one additional layer integrally connected to the first-formed layer and having superabsorbent properties. The first layer acts to aid in trapping of any superabsorbent which is not immediately entangled in the meltblown and wood fibers and prevents it passing through the forming belt.
REFERENCES:
patent: 4100324 (1978-07-01), Anderson et al.
patent: 4297410 (1981-10-01), Tsuchiya et al.
patent: 4333464 (1982-06-01), Nakano
patent: 4338371 (1982-07-01), Dawn et al.
patent: 4340556 (1982-07-01), Ciencewicki
patent: 4429001 (1984-01-01), Kolpin et al.
patent: 4537590 (1985-08-01), Pieniak et al.
Lang Theodore B.
McFarland Timothy M.
Bell James J.
Duggan J. J.
Kimberly-Clark Corporation
Leipold Paul A.
Traut Donald L.
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