The present application relates to the technical field of fabric, in particular to a modified
fiber prepared from natural extracted
essential oil and application thereof in
insect-repellent home
textile fabric. The modified
fiber designed in the present application comprises a
fiber and a three-dimensional continuous
porous network formed on the surface of the fiber, the network is composed of polydopamine and beta-
cyclodextrin, the
porosity is 30% to 70%, the average pore size is 50 to 200 nm, and the network is loaded with natural extracted
essential oil. In the preparation, the fiber is first placed in an aqueous
phase reaction system of
dopamine hydrochloride and beta-
cyclodextrin, the
porous network is formed by reacting at 20 to 50 DEG C for 8 to 24 hours, then the fiber is immersed in a fine
emulsion liquid containing natural
essential oil with an average particle size of 150 to 400 nm after washing, the essential oil is loaded by stirring at 30 to 50 DEG C for 2 to 6 hours, and finally the fiber is dried to constant weight. The present application realizes efficient loading and slow release of essential oil by using the high specific surface area of the
porous network and the inclusion effect of beta-
cyclodextrin, and the fiber has long-acting
insect-repellent performance and good washing resistance, and can be used for making
insect-repellent home
textile fabric.