Comparison of POF crosslinked shrinkage film and POF shrinka
Comparison of multi-layer co extruded POF cross linking shrink film with POF shrink film
(1) the shrinkage of crosslinked membrane is higher than that of POF film (both sides are above 75%, POF film is 60%), and the shrinkage temperature decreases.
The crosslinking membrane has higher thermal sealing strength and wider thermal sealing temperature than POF film.
(3) there is no delamination phenomenon on the surface of POF film after cross linking.
(4) the reduction rate of shrinkage of cross-linked membrane during aging and storage is lower than that of POF film.
The thickness uniformity of crosslinked membranes is better than that of non crosslinked membranes.
6. The impact strength of the crosslinked membrane is higher than that of the non crosslinked membrane.
By using special formulation and process control parameters, a high shrinkage and low shrinkage force cross linking shrink film can be prepared, and the POF film can not be used.
Due to the reduction of the starting shrinkage temperature of the crosslinking membrane, the shrinkage time is increased to a certain extent in the process of commodity packaging, which reduces the shrinkage process and reduces the opportunity for the deformation and damage of the package.
The lower initial shrinkage temperature and the wide thermal sealing temperature range for the packaging and shrinkage equipment. To a certain extent, the POF film can be used to reduce the investment of the user's equipment.
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