Skin-lightening and antibacterial knitted fabric and preparation method thereof

A preparation method for a skin-lightening and antibacterial knitted fabric, comprising the following steps:

• step 1, fully dissolving Zn(NO3)2.6H2O and 1,4-benzenedicarboxylic acid (H2BDC) via N,N-dimethylformamide (DMF) and stirring uniformly to obtain a Zn-BDC MOF solution;
• step 2, performing a product separation on the Zn-BDC MOF solution, filtering for 3-5 times, washing with deionized water for 6-8 times, and then drying washed Zn-BDC MOF under vacuum to obtain a Zn-BDC MOF powder;
• step 3, dispersing the Zn-BDC MOF powder obtained in the step 2 in N N-dimethylformamide, adding nicotinamide and chitosan respectively, embedding the nicotinamide and the chitosan into pores of a metal-organic framework (MOF), after an ultrasonic treatment, filtering a resulting solution and washing with deionized water for several times and drying to obtain a functionalized MOF powder with antibacterial, skin-lightening, and skincare;
• step 4, dispersing the functionalized MOF powder obtained in the step 3 in deionized water at room temperature, adding a polyvinyl alcohol solution, stirring uniformly, and obtaining a clothing finishing agent;
• and
• step 5, finishing the clothing finishing agent onto knitted clothing to obtain the skin-lightening and antibacterial knitted fabric.