US 11,834,789 B2
Papermaking felt and a method of producing the same
Yasuyuki Ogiwara, Tokyo (JP); and Yuto Muraoka, Tokyo (JP)
Assigned to Ichikawa Co., Ltd., Tokyo (JP)
Filed by Ichikawa Co., Ltd., Tokyo (JP)
Filed on Aug. 23, 2021, as Appl. No. 17/445,615.
Claims priority of application No. 2020-142732 (JP), filed on Aug. 26, 2020.
Prior Publication US 2022/0064857 A1, Mar. 3, 2022
Int. Cl. D21F 7/08 (2006.01); D21F 7/10 (2006.01)
CPC D21F 7/083 (2013.01) [D21F 7/10 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A papermaking felt made from an MD yarn material in the felt running direction (MD direction) and a CD yarn material in the felt cross-direction (CD direction), with the length in the MD direction being 1550 cm or more and 40000 cm or less, comprising a combination wherein two or more base fabrics are directly overlapped with each other, which have a joint portion wherein MD direction end portions are joined which comprise a first MD direction end portion and a second MD direction end portion wherein, with regard to the base fabrics having all included joint portions, the equations (1) and (2) hereinafter are satisfied when the maximum distance in the MD direction between the joint portions of the base fabrics is x (cm) and the minimum distance thereof is y (cm)
x≤750  (1)
51≤y  (2).