METHOD FOR SPRAYING CHEMICAL SOLUTION

摘要

[Problem] To provide a method for spraying a chemical solution that makes it possible to uniformly apply a chemical solution to a traveling body and that exhibits excellent spraying efficiency. [Solution] The present invention is a method for spraying a chemical solution in which, in a state in which a traveling body that guides a wet paper (X) travels in a dry part (D) of a papermaking machine, a nozzle device (S) moves reciprocally in a direction that is perpendicular to the travel direction of the traveling body while the chemical solution is continuously sprayed on the traveling body. The traveling body is a cylindrical dryer roll (D1) or an endless canvas (K1). The movement distance (H) of the nozzle device (S) during one rotation of the traveling body (1) and the width (W) of the spraying part of the nozzle device (S) with respect to the traveling body satisfy the following relationship: 0.5 ≤ H/W ≤ 20.