PROBLEM TO BE SOLVED: To provide a yellow discoloration inhibitor containing aldose-based saccharides as an active ingredient for inhibiting yellow discoloration of general shoji papers containing shoji papers for general home use and shoji papers for industrial use in a paper industry.SOLUTION: A yellow discoloration inhibitor is a solution of at least one or more kind of monosaccharide, polysaccharide, aldose of reduced saccharide or a mixture thereof with the solid content of 5 to 50% as an active ingredient of a yellow discoloration inhibitor, and at least one or more kind of p-hydroxybenzoic acid ester, glycol ether or benzoic ester with the solid content of 0.1% to 5% is added to the solution as an antisepsis and antifungal agent of the yellow discoloration inhibitor.COPYRIGHT: (C)2014,JPO&INPIT【課題】紙の分野における一般家庭用障子紙及び業務用障子紙を含む障子紙全般の黄変を防止するアルドース系糖類を有効成分とする黄変防止剤を提供する。【解決手段】黄変防止剤の有効成分として、少なくとも1種以上の単糖類、多糖類、還元糖のアルドースまたはこれらの混合液であって固形分が5~50%の溶液であり、さらに、この黄変防止剤の防腐及び防カビ剤として、少なくとも1種のパラオキシ安息香酸エステル、グリコールエーテルまたは安息香酸エステルを固形分0.1%~5%を添加する。【選択図】なし
