Production method of colored cotton, wood and bamboo composite pulp viscose

The invention relates to a production method of colored cotton, wood and bamboo composite pulp viscose, belonging to the technical field of production of colored composite pulp viscose. The colored cotton, wood and bamboo composite pulp provided by the invention is applied to preparing pre-spinning viscose for producing the colored cotton, wood and bamboo composite pulp viscose, therefore, the steps of alkaline dipping, ageing, yellowing and dissolving in the process of producing the viscose are optimized, thus greater dipping effect of the composite pulp viscose can be achieved; the produced alkali cellulose is uniform, and excessive dropping can be avoided, therefore, the resulting problems that the produced cellulose is low in sulphonate viscosity and is improperly filtered, the produced product is poor in intensity and low in spinnability can be avoided, and the prepared product has the advantages of being high in dyeing fastness and stable in quality; and meanwhile, the fiber also has the antibacterial property of bamboo pulp fiber.