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Study of Disappearing ink Writings on Different Types of Documents
Citations:
1
References:
12
Abstract
D ISAPPEARING inks are used in textile industry such as dressmaking crafts and as a kind of teaching material; for example, printed questions are visible and the spaces for an answer exhibit invisible disappearing ink.The answers only become visible using a coloring assistant.This research was conducted on the preparation of disappearing inks using different concentrations of thymolphthalein (Th-p...
Keywords
2019
Article
Open Access
Study of Disappearing ink Writings on Different Types of Documents
Citations:
1
References:
12
Abstract
D ISAPPEARING inks are used in textile industry such as dressmaking crafts and as a kind of teaching material; for example, printed questions are visible and the spaces for an answer exhibit invisible disappearing ink.The answers only become visible using a coloring assistant.This research was conducted on the preparation of disappearing inks using different concentrations of thymolphthalein (Th-p...
Keywords
2019
Article
Open Access