Ballpoint ink can be pressurized so that some ballpoint pens can write upside down, underwater, and in other adverse conditions. Gel ink is based on water that has been thickened with a proprietary blend of materials. You can read thehistory of gel pensfor all the details, but the larger ...
Disposable pens contribute to plastic waste, making them less environmentally friendly than pencils, especially wooden ones. 8 What are gel pens? Gel pens use a water-based gel ink that allows for a wider range of colors and smoother writing compared to traditional ballpoint pens. 8 Can the in...