Stock material or miscellaneous articles – Structurally defined web or sheet – Nonplanar uniform thickness material
Patent
1991-03-07
1994-05-31
Ryan, Patrick J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Nonplanar uniform thickness material
428111, 428136, 428225, 428247, 428252, 428332, 264 25, 264 26, D01D 522, D01D 542
Patent
active
053168275
ABSTRACT:
An improved stuffer box used for crimping textile fibers, particularly fibrillated polyolefin films. The width of the stuffer box is related to the linear density of the fiber bundles to be crimped whereby there is one millemeter of width for each fiber bunder size in the range of from about 200 to about 750 denier. Pressure controlled hinged lid or fixed lid exit orifices may be employed. Also employed may be a distributing device for applying additive material to the textile fibers prior to crimping to enhance the crimping operation or to enhance the end use of the crimped fiber or both. Fibrillated polyolefin materials that are crimped in accordance with the invention are adapted for use as filter materials in smoking articles.
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Filter Materials Ltd. brochure, 1986.
Hill Michael
Nichols Walter A.
Filter Materials Limited
Ingerman Jeffrey H.
Ryan Patrick J.
Schuler Elizabeth C.
Weisberger Richard C.
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