PULP， SLURRY， SHEET， LAMINATE， AND METHOD FOR PRODUCING PULP

It is an object of the present invention to optimize a bleaching process in a step of producing phosphorylated cellulose fibers. The present invention relates to a pulp comprising cellulose fibers having 0.5 mmol/g or more of phosphoric acid groups or phosphoric acid group-derived substituents， wherein when the pulp is processed into a sheet and four sheets are laminated on one another， the ISO whiteness of the laminate is 82% or more. Moreover， when the pulp of the present invention is processed into a sheet and four sheets are then laminated on one another， the b* value of the obtained laminate according to the L*a*b* color system is 5.5 or less.