Duct tape was invented in 1937 by Colin Kininmonth and Gorge Gray. Their tape was made from rubbery resin which they applied to thin sheets of plastic made of cellulose. Later, duct tape was manufactured in southern London in the factory which was part of the ‘Dickinson Robins group’ which made paper and packaging. During WW II duct tape was massively used for gluing glass so it would be less prone to shattering and scattering, but today it has become an irreplaceable thing for any office table.
As many people still say ‘Kaladont’ instead of ‘tooth paste’, so has the brand ‘Sellotape’ in these parts, as well as UK and some other countries, become generic–completely assuming the general meaning, and becoming the name for any other duct tape there is in most homes.
Sellotape is a duct tape sensitive to pressure whose composition is basically cellulose. It is used for gluing, or more precisely putting together various different materials: paper, cardboard, plastic, even metal, glass, wood… practically anything to anything, depending on situation and possibilities. Sellotape can be used only once, since its removal can rip the paper or for example damage the top layer of rough cardboard. On smooth colored surfaces it can generally be removed without leaving any traces.