It consists of the sheet material null poly lactic acid or the polybutylene succinate

摘要

PROBLEM TO BE SOLVED: To provide a sheet material for coffee filter enabling proper filtration of fine coffee particles and proper adsorption of oil and fat components to get extracted coffee having high quality, slowly decomposing in natural environment and free from environmental destruction in the disposal of the used filter.;SOLUTION: This coffee-extraction sheet material is a melt-blown ultrafine fiber nonwoven cloth made of a polylactic acid and having an average fiber diameter of ≤20 μm, an air-permeability of 10-250 cm3/cm2.sec and a water- absorption rate of ≤5 sec for water of ≥60°C.;COPYRIGHT: (C)2000,JPO