Method of manufacturing papermaker's felt

(19)

(11)

EP 0 239 207 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	08.11.1989 Bulletin 1989/45

(43)	Date of publication A2:
	30.09.1987 Bulletin 1987/40

(21)	Application number: 87301062.3

(22)	Date of filing: 06.02.1987

(51)	International Patent Classification (IPC)⁴: D21F 7/08, D04H 13/00, D04H 1/48

(84)	Designated Contracting States:
	AT BE CH DE ES FR GB GR IT LI LU NL SE

(30)

Priority:

26.03.1986 US 844088

(71)	Applicant: ASTEN GROUP INC. (a Delaware corporation)
	Charleston South Carolina 29411 (US)

(72)	Inventor:
	Penven, Patrick h. Clinton South carolina 29325 (US)

(74)	Representative: Williams, Trevor John (GB) et al
	J.A. Kemp & Co. 14 South Square, Gray's Inn GB-London WC1R 5EU GB-London WC1R 5EU (GB)

(56)

References cited: :

(54)	Method of manufacturing papermaker's felt

(57) The present invention provides a solution to the prior art problem of producing a high density papermakers batt fabric or felt which may be secured to an undamaged under layer in an economic manner. The present invention provides these improvements by providing a batt which is comprised of a non-woven low melt scrim to which the batt material is initially needled. Subsequent to producing a batt of the required density, the batt may, if desired, be needled or adhered to an under layer fabric. The completed felt will be subjected a heat pressing operation which will elevate the temperature of the batt to a temperature above the softening temperature of the scrim but below the melting point of the batt fibers. In this manner, the batt and under layer fabric are unified to produce a multilayer papermakers felt with minimum effort and disruption of the under layer.

Search report