Patent ID: 11939723
Assignee: ICHIKAWA CO., LTD.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D  B | IPC B  D

Claim 11:
12. A method for manufacturing a papermaking felt, comprising:
(a) a step wherein, in a base fabric composed of a MD yarn material in the felt running direction (MD) and a CD yarn material in the felt crossing direction (CD) and having an MD end region consisting of a first MD end region and a second MD end region and a CD end region consisting of a first CD end region and a second CD end region, at least one of the MD end regions and the CD end regions are overlapped with each other,
(b) a step wherein the entire overlapped portion in step (a) is welded without removing a part or all of the MD yarn material or the CD yarn material in said overlapped portion, and the overlapped end regions are joined such that, when the average thickness of the welded portion of each base fabric is x (mm) and the average thickness of the material portion of each base fabric is y (mm), the relationship between x and y satisfies the following formula (1):

0.5≤x/y≤0.95   (1)

(c) a step wherein steps (a) and (b) are repeated as necessary to form at least one base fabric into a closed loop shape.