Patent ID: 6735835
Filing Date: 2004-05-18
Classification: D04H,Y10T

Abstract:
A method of manufacturing a non-woven fabric, comprising:opening and mixing different input fibres to form a uniform fibre mixture having predetermined proportions of the different input fibres; carding the fibre mixture to form a uniform web of predetermined thickness traveling in a first direction; depositing fixed lengths of the web in alternating fashion on a conveyor traveling in a second direction transverse to the first direction to form on the conveyor a mat having overlapping lengths of the web; and needle-punching the mat to form the non-woven fabric; which method is characterized by laying high tenacity yarns onto the web prior to depositing the lengths of the web on the conveyor to form the mat, each yarn laid on the web so that the yarn extends in the first direction and is spaced apart and undulates transversely of the first direction.