Production process for refining hydrophilic colloid through filtration of cellulose instead of perlite and product of hydrophilic colloid

The invention relates to a production process for refining a hydrophilic colloid through the filtration of cellulose instead of perlite and a product of the hydrophilic colloid. The production processis characterized by comprising the following steps: (A) preparing a colloid solution, carrying out colloid preparation on a colloid preparation raw material so as to obtain the colloid solution, adding a cellulose filtering aid for filtering the colloid solution, and uniformly stirring, wherein the cellulose filtering aid is equal to 1wt%-5wt% of weight of the colloid solution; (B) filtering: immediately filtering the colloid solution mixed with the cellulose filtering aid, so as to obtain a clear transparent colloid; (C) condensing: cooling and coagulating the clear transparent colloid, so as to obtain a gel; (D) squeezing: squeezing the gel, extruding water in the gel body through a high pressure, so as to obtain a colloidal film with a water content of 75wt%-85wt%; (E) drying: crushingthe colloidal film to obt