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1.发明授权Protective sheets having self-adhesive property used for wearing on clothes and keeping them clean 失效具有自粘性材料的保护用品，用于穿上衣服并保持清洁
公开(公告)号：US5062158A
公开(公告)日：1991-11-05
申请号：US415202
申请日：1989-09-01
申请人： Mitsuko Oka , Yoshiharu Okumura
发明人： Mitsuko Oka , Yoshiharu Okumura
摘要： The present invention relates to protective sheets used for wearing on clothes and keeping the clothes clean which have no problem such as slipping off, stripping up, falling down and so on without fixing them on bodies with strings, namely, protective sheets effectively used for aprons and napkins and practically relates to protective sheets which are the above described aprons and napkins consisting of electret sheets whose surface electric charge density is 1.times.10.sup.-10 coulomb/cm.sup.2 or more and weight per square meter is 10 g/m.sup.2 or more and 100 g/m.sup.2 or less.
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