我司产品用海绵作真空吸盘吸产品，产品有高温(100度左右)，一吸一放，只是接触两到三秒种，吸完后海绵会在产品表面上留下不可抹掉的痕迹。有不留痕迹的海绵吗？或者是否有什么工艺可解决此问题？比如把发泡好的海绵进行药水浸泡，或高温烘烤去除杂质？避免海绵在产品上残留痕迹？

Our products use sponge as vacuum suction product, the product has high temperature (about 100 degrees), one suction and one release, only contact for two to three seconds, sponge will leave indelible traces on the surface of the product after absorption. Any sponges that leave no trace? Or is there any process to solve this problem? For example, foam good sponge for liquid medicine immersion, or high temperature baking to remove impurities? Avoid sponge residue on the product?