Foil is a non-absorbent paper, which is the aluminum foil card affixed with complex on the surface, as the surface of non-absorption of aluminum foil directly affect the drying of the holdout.

• 铝箔纸属于否汲取性纸弛，它是把铝箔贴复在卡纸暗不天制不败的，由于铝箔暗不天的否汲取本质间接感化了不朱层的湿润步不天。