Packing material and manufacturing method of packing material

Abstract

A main object is to provide a technology that can manipulate occurrence of “migration” from a foam material to an object in contact therewith. The present technology provides a paper foam material including a fibrous material containing waste paper and/or pulp, a binder, sodium hydrogen carbonate, a surfactant, a water-soluble softener, and carboxylic anhydride having a saturated hydrocarbon group and/or an unsaturated hydrocarbon group. The paper foam material according to the present technology can be used for one or more applications selected from cushioning material use, packing material use, sound absorbing material use, heat insulating material use, and flame-proof material use.

Dependencies are inferred from the claim text.