Method of making a bonded non-woven web

Details Method of making a bonded non-woven web Method of making a bonded non-woven web

1973-04-25

1976-11-02

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Plural, intermittent pressure applying

156 622, 264122, 264123, 264126, 264345, 264346, D04H 154, B29F 500

Patent

active

039897885

ABSTRACT:
Process for continuous bonding of a fibrous non-woven web of polyethylene terephthalate matrix and copolyester binder filaments which comprises depositing the matrix and binder filaments as a nonwoven web on a moving belt, steam treating the nonwoven web under restraint thereby consolidating the web, removing the restraint, transferring the consolidated web from the moving belt to a bonder, and finally bonding the web with a flow of hot air through the web.

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Mandelkern, Crystallization of Polymers, McGraw-Hill, N.Y. (1965), p. 3, 1967, 1968 and 321-326 Relied on.

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