The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 2025
Filed:
May. 17, 2021
Maintech Co., Ltd., Tokyo, JP;
Hiroshi Sekiya, Tokyo, JP;
Tomohiko Nagatsuka, Fuji, JP;
Kazuyujki Yusa, Fuji, JP;
Ayano Suga, Tokyo, JP;
MAINTECH CO., LTD., Tokyo, JP;
Abstract
A chemical solution spraying method for spraying a chemical solution onto a canvas Khas a loop shape in a side view while reciprocating two nozzle devices S at the same speed along rail L extending in a width direction of canvas Kwith respect to canvas K, in which time period Tc during which canvas Kis in contact with wet paper X is 0.03 seconds or more, time period Tn required for nozzle devices S to each one-way move is 0.5 to 10 minutes, traveling speed Vp of canvas Kis 500 m/min or more, length K of canvas Kis 20 to 80 m, a number of times of contact N of any point on a surface of canvas Kwith wet paper X during time period Tn, time period Tn, traveling speed Vp, and length K satisfy a relationship of N=(Tn·Vp)/K, under predetermined conditions.