Modified process for cellulose fiber through modifying agents

The invention relates to a modified process for cellulose fiber through modifying agents, and belongs to the technical field of textile dyeing. The modified process comprises the following steps: putting the cellulose fiber into a container, adding water into the container, and then conducting modified treatment on the cellulose fiber through two cation modifying agents of a micromolecule quaternary ammonium salt cation modifying agent and a macromolecule quaternary ammonium salt cation modifying agent, so as to obtain the modified cellulose fiber after the modified treatment, wherein the micromolecule quaternary ammonium salt cation modifying agent is a compound of epoxy quaternary ammonium salt, and the macromolecule quaternary ammonium salt cation modifying agent is cationic starch. The two specific modifying agents are adopted and play the function of a synergistic effect, so that salt-free low-alkaline dyeing of the modified cellulose fiber in the follow-up dyeing is realized, the pollution as well as the cost is reduced, the process is simplified, the difficulty is reduced, the modified and follow-up dyeing effects are good, and industrialized mass production is facilitated.