Moreover, the properties of starch sizes for pure polyester warp yams are obviously improved if WSP sizes are properly used and the weight percentage of WSP to the blended size is 20%.

• 在淀粉浆料中加入水溶性聚酯可以显著提高对涤纶经纱的浆纱性能，其用量为20%25时浆纱性能较好。