1. Take off the sweet potato leaves and wash them, then put water in the pot to boil, add the sweet potato leaves and cook them, then take them out and drain them in cold water.

Then prepare a sand mesh cloth to squeeze and filter the cooked sweet potato leaves to get green juice, and add alkali and Pickering particles to the green juice. A kind of anhydrous recyclable Pickering emulsion reactive dye, sweet potato leaf green dye, is ready.

2. Sweet potato leaves contain a lot of natural green pigments and melanin. Extracting natural plant dyes from sweet potato leaves is not only rich in raw materials, but also can supplement the green dyes lacking in plant dyes. It is of practical significance to develop its dyeing technology in natural fibers and expand its application scope.

3. Sweet potato leaves are also called sweet potato leaves, that is, the leaves on the stems during the growth of sweet potatoes. Sweet potato leaves have many uses, such as improving immunity, protecting eyesight, delaying aging and detoxifying. Generally, the tender leaves at the top of the stem of the above-ground seedling are eaten after the sweet potato matures in autumn.

4. Sweet potato leaves have health care functions such as improving immunity, stopping bleeding, lowering blood sugar, detoxicating, preventing night blindness, promoting metabolism, relaxing bowels, promoting diuresis, raising platelets, preventing arteriosclerosis, and promoting lactation and detoxicating. Sweet potato leaves can make the skin smooth. Regular consumption can prevent constipation, protect eyesight, keep skin delicate and delay aging.