| 摘要 |
FIELD: packing industry.SUBSTANCE: invention relates to protective plastic bag (10) for containment and transportation of personal belongings. A bag includes lower (11) and upper (12) plastic layers interconnected to form a lockable input opening (16). Protective bag (10) features indication layer (17) changing colour in case of mechanical damage, particularly in case of cutting, at least at some sections. Indication layer includes two reagents separated in space from each other, where separation is removed by mechanical damage.EFFECT: reduced risk of unnoticed cutting of protective sheet by an unauthorized person.5 cl, 1 dwg |
