How To Distinguish Defective Products in Luxury Glass Cosmetic Bottles

How to distinguish defective products in luxury glass cosmetic bottles

(1) Uneven thickness

It refers to the uneven distribution of glass on the glass bottle. The main reason is that the temperature of the glass gob is uneven, the part with high temperature has low viscosity and is very easy to blow thin; the part with low temperature has large frictional resistance and is thick. The temperature of the solid model is uneven, the glass on the high temperature side is slow to cool, and it is very easy to blow thin, and the glass on the low temperature side is blown thick due to the fast cooling of the glass.

(2) Deformation

If the gob temperature and the effect temperature are too high, the glass bottle slipped from the forming die is not finalized, and usually collapses and deforms. Sometimes the bottom end of the bottle is still soft, and the lines of the conveyor belt will be printed and the bottom of the bottle will be uneven.

(3) Cracks

Cracks are a widespread defect in glass bottles. It will be very fine, some only visible in refracted light. The most common locations are the corks, short boards and shoulders, and the bottle body and bottom of the bottle are also often caused by cracks.