Transparent PVC packaging box packaging can effectively promote your products, and transparent PVC packaging box can make your products directly show in front of consumers.Transparent PVC packaging box in production, will be treated with color, in the process of color, sometimes there will be color uneven phenomenon, how to solve it?Below we see transparent PVC packaging box to add uneven color how to deal with?
(1) the diffusion of colorant in transparent PVC packaging box is poor, which often makes the pattern appear near the gate.
(2) plastic or colorant thermal stability is poor, to stabilize the color of parts, must be strictly fixed production conditions, especially material temperature, material quantity and production cycle.
(3) for crystalline plastics, try to make the cooling speed of each part of the parts is the same, for the wall thickness difference of the parts, you can use colorant to cover the color difference, for the wall thickness of more uniform parts to fix good materials and mold temperature.
(4) the shape and gate form of transparent PVC packaging box and parts, and the position have an impact on the plastic filling, so that some parts of the parts have color difference, if necessary, to be modified.
So there are a lot of things that need to be paid attention to when the color of PVC packaging box is uneven. The above is how to deal with the color uneven added by transparent PVC packaging box.