Glossary A
Anionic dye is in relation to a type of dye which dissociates in aqueous solution to give a negatively charged coloured ion.
Annealing is described as controlled heating and cooling process designed to relieve internal stresses introduced in a glass container during and immediately after glass container formation. Annealing point, meanwhile denotes the specific temperature in which internal stresses built up during glass container formation are substantially relieved in 15 minutes.