发明名称 |
KUNSTSTOFFFOLIE, VERWENDUNG VON FARBSTOFF DARIN, SOWIE VERFAHREN ZUR ECHTHEITSPRÜFUNG VON VERPACKTEN GÜTERN |
摘要 |
A dyestuff capable of undergoing a clearly visible colour change when contacted with a color-developing material is dispersed in the body of a plastics film and used in the identification of goods. The film can be used for packaging of the goods or as a label or seal affixed to the goods. When testing the authenticity of packaging goods, the plastics film is marked with the color-developing chemical to produce a colored mark on the package. The dyestuff is preferably a latent dyestuff which is colorless and invisible to the eye under ambient conditions for use of the film but which forms a clearly visible color when contacted with the color-developing material. |
申请公布号 |
AT218980(T) |
申请公布日期 |
2002.06.15 |
申请号 |
AT19990934868T |
申请日期 |
1999.07.19 |
申请人 |
ACORDIS ACETATE CHEMICALS LIMITED |
发明人 |
LONGDON, TONY;HEALD, GWYNNETH ANNE;LAW, PAUL WILLIAM |
分类号 |
B41M3/00;B41M3/14;B44F1/12;B65D55/02;C08J3/215;C08J5/18;C08K5/00;D06P1/00;(IPC1-7):B41M3/00 |
主分类号 |
B41M3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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