Product characteristics (1) It is used for the rigid finishing of warp knitted fabrics. It has the advantages of high hardness, good smoothness, plump feel, low cost and no non environmental protection substances, which meets the requirements of environmental protection; (2) The size of this product has good water solubility, stable thermal viscosity, strong permeability to polyester / cotton, and excellent strengthening and elongation holding effect; (3) After finishing, there is little difference in color change of the original fabric.