Investigation of Structure of Flock Printing Materials at Package Gluing using Optical Microscopy
Keywords:flock printing materials, paperboard, flock, glue, sizing, filler, gluing compositions, gluing strength, paperboard delamination, optical microscopy.
The optical microscopy analysis was used to study the structure of paperboard and character of ripping of glued flocked
samples after the break off. The effect of the filler and level of sizing on the paperboard interlayer strength, as well as
resistance to bending and absorbancy ability have been studied. The tests have been performed on the number of double
folds of paperboard with flocked coating and without it in machine and cross-machine direction. Different brands of
paperboard, flock and gluing compositions have been analysed and recommendations for the gluing of various
packaging made from flocked printing materials have been presented.
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