Specialized in Printing & Packaging since 2003.

Why the color printing packaging indentation

by:WenJie     2020-09-08

for color printing & packaging packaging products manufacturer, we are aware of, all sorts of common product box belong to the category of the production of printing & packaging industry, if in the process of production in creasing line, will not only affect the packing box of beautiful degree, will seriously affect its quality. And what is the cause of this phenomenon?

the cause of such phenomenon is actually more, can generally because there was a problem with the paper fiber manufacturing, color printing printing & packaging paper fiber direction parallel to the indentation steel wire, cannot make indentation area paper fiber uniform stress at the same time, after molding, color box without fiber in the internal stress in the zone of indentation, subjected to external force, the crack will occur. Paper strength and toughness is poor, cut wear indentation after processing, on the part of color printing & packaging packaging creasing the dominant or recessive a rift. After folding, back to the fold, glue, pressure and stability after processing. They form dominant crack.

this requests us in the subsequent paste product problems in the process of the system, cannot ignore its postpress moisture protection and temperature control in the working environment. And our color box after hot stamping, embossing, laminating and die-cutting indentation process after the moisture loss serious and become fragile, after folding, folding and pressing back, also can appear indentation Fried line, we should pay attention to these aspects.


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