PACKAGING PAPER FOR BREAD YEAST

摘要

PROBLEM TO BE SOLVED: To obtain packaging paper having suitable permeability of carbon dioxide gas or oxygen and moisture permeability in a good balance and having excellent reserving stability of yeast cake for bread by laminating a wax layer on a printed layer formed on base paper. SOLUTION: A printed layer printed with prescribed design or letters is formed on one face of base paper such as woodfree paper, kraft paper, simili paper or Japanese paper having 35-80g/m<2> basis weight by a gravure printer. Next, a mixture obtained by stir-mixing in heating of 100 pts.wt. of paraffin wax with 5-50 pts.wt. of a thermoplastic resin such as ethylene-vinyl acetate copolymer is applied on the printed layer by a roll coater in a coating amount of 10-30g/m<2> to obtain the objective packaging paper of yeast cake for bread having 400-2,000cm<3> /m<2> .24h.atm carbon dioxide gas permeability, 100-600cm<3> / m<2> .24h.atm oxygen permeability and <=50g/m<2> .24h moisture permeability.