Introduction to Markers
Dry erase markers are unique writing tools designed for non-permanent presentations. They differ from regular markers with their erasable ink, used on whiteboards, glass, and laminates.
History of Dry Erase
The dry erase marker was invented in 1975. It revolutionized the way presentations were made, making chalkboards obsolete in many settings due to its easy-to-erase nature.
Erasable Ink Composition
The ink in dry erase markers contains three main components: a pigment, a solvent, and a polymer. This special formulation allows the ink to adhere temporarily and dry quickly.
How Erasing Works
Dry erase ink dries without being absorbed. When erased, the polymer prevents the pigment from permanently sticking, allowing the ink to be wiped away cleanly with a cloth or eraser.
Color Spectrum Variety
Dry erase markers come in a wide range of colors. The non-toxic, vivid pigments are designed to stand out against whiteboard surfaces for clear visibility.
Health and Safety
Unlike chalk, dry erase markers produce no dust, which is beneficial for respiratory health. However, they contain volatile organic compounds (VOCs), which can be harmful if inhaled in large quantities.
Innovations in Erasability
Recent advancements include refillable markers, odorless ink options, and markers designed to erase after several days, expanding the versatility and eco-friendliness of dry erase markers.
What year was the dry erase marker invented?
1975
1985
1965
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