| abstract |
An object of the present invention is to provide a cleaning agent and a cleaning method capable of efficiently removing, in a short time, scale that is generated in a paper / pulp manufacturing process and adheres and accumulates on a manufacturing facility such as a pipe or a device. A paper comprising a water-soluble anionic polymer having a number average molecular weight of 500 to 50,000 or an alkali salt thereof, or an aminocarboxylic acid or an alkali salt thereof having a chelating power on calcium and / or barium. It is a detergent for the pulp manufacturing process. The production equipment in the paper / pulp production process where the scale has occurred is washed with an alkaline aqueous solution of the above-mentioned detergent. [Selection diagram] None |