Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1982-12-30
1985-04-16
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
156280, 156291, 156296, 1563082, 428195, 428284, 428286, 428287, 428296, 428298, 428302, 428303, 428343, 428354, 428355, 428373, 428374, B32B 300
Patent
active
045116156
ABSTRACT:
A method of making a two layer non-woven fabric is described wherein the first layer of thermoplastic bicomponent fibers is autogeneously heat bonded to the second layer of thermoplastic fibers without compression and the surface of the first layer is coated with a heat-melting adhesive. The softening temperature of the second layer thermoplastic fibers is at least 20.degree. C. higher than the softening temperature of the adhesive. The components of the bicomponent fibers are low and high softening temperature components. The softening temperature of the low temperature component is higher than that of the second layer fibers.
REFERENCES:
patent: 4373000 (1983-02-01), Knoke et al.
Bell James J.
Firma Carl Freudenberg
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