Colour-changeable book

The utility model discloses a colour-changeable book, which is composed of a plurality of pages of book pages which are formed by the thermal pressure of two layers of EVA material, wherein patterns of at least one page surface are provided with a layer of colour-changeable printing ink by silkscree...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZHANG XINGZHI, ZHANG BINGFEN
Format: Patent
Sprache:eng
Schlagworte:
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