Abstract: The hydroentangled semi2finished cotton nonwoven fabric was impregnated in sericin solution with
different mass concentration , followed by double2dip2double2nip process , then dried and set , thus obtained a
degradable cotton nonwoven mulching membrane. It was found through gray correlation analysis that the factors
influencing the strength of the mulching membrane fell into the following order : moisture regain > weighting
percentage > sericin mass concentration. The product was characterized by using scanning electron microscope
(SEM) , Fourier transform infrared spectroscopy ( FTIR) and degrade efficiency. The preliminary results
indicated that the best physical property of the fabric is obtained when impregnated in 1 % mass concentration
sericin solution , whose lengthwise and crosswise breaking strength are 33 N and 44 N respectively , and the
moisture regain , 1018 %.