Method for preparing yew leaf extract by using high-pressure micro jet and method for applying yew leaf extract to fabrics
A high-pressure micro-jet, yew leaf technology, applied in the field of high-pressure micro-jet preparation of yew leaf extract and its application on fabrics
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Embodiment 1
[0016] After sorting and selecting the yew leaves and removing impurities, wash and dry them, and use a micro-plant pulverizer to preliminarily crush them; weigh 10g of yew leaf powder that is preliminarily crushed, add 200mL of 95% ethanol to soak, stir evenly and use high pressure The high-shear micro-jet pulverizer is processed at a homogeneous pressure of 100MPa, the number of micro-jet cycles is 30, and finally leached at 40°C for 60 minutes. After filtration and centrifugation, a clarified yew leaf extract is obtained, which is obtained after vacuum concentration. Paste extract.
Embodiment 2
[0018] The preparation mass fraction is the acrylic acid solution of 70%, adds 2% photoinitiator 2,4,6-trimethylbenzoyl-diphenyl phosphine oxide, puts into the padding of cotton fabric, makes the rate of squeeze out 100%, The treated fabric was put into a UV radiation device for treatment for 3 minutes, and finally the fabric was washed with boiling water and deionized water respectively and dried to obtain a fabric grafted with ultraviolet light to acrylic acid.
Embodiment 3
[0020] In 50mL of dichloromethane solution, add 5g of yew leaf paste extract, 0.2g of condensing agent dicyclohexylcarbodiimide and 0.1g of catalyst 4-dimethylaminopyridine, dissolve and mix well, then put 1g of dry The modified fabric was cooled to 0°C and reacted for 24 hours, then the fabric was taken out, washed with dilute acetic acid solution, finally washed with clear water and then dried to obtain the finished fabric with yew leaf extract.
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