by using a sheet machine and then dried to give sheets of ca 410 g m 2 the quantity of zinc hydroxide fixed on each of the sheets was determined in w w reduced to zinc and based on the weight of the nbsp and the rate of zinc fixed based on the weight of zinc added was calculated therefrom results obtained are also shown in table 2 thereafter the deodorizing capability for h 2 s gas and nh 3 gas of the products according to examples 10 and 11 was evaluated in accordance with the test method described hereinbefore it would be apparent from the results shown in table 2 that the cellulose fibers on which zinc hydroxide is fixed possess the capability of deodorizing h 2 s gas and nh 3 gas disaggregated and acid treated slurry of nbsp fibers was prepared in the same manner as in the case of aqueous copper sulfate solution in example 9 and copper sulfate and zinc sulfate were added thereto in the same manner as in example 9 up to a concentration of 2 by weight each reduced to copper or zinc and based on the weight of the fibers subsequently the ph of the mixture was adjusted to 8 by the addition of an aqueous solution of sodium hydroxide 120 g l whereby a copper.