What Are The Standards For Low Crown Cap Technology?

Crown cap coating film production must strictly refer to the process sheet for construction, the production process in the addition of paint or thinner, must be fully stirred and to ensure the consistency of the viscosity of the coating, the amount of coating film is too large, too small or uneven will cause poor adhesion.

Whether the process arrangement is reasonable and correct is also an objective factor affecting the adhesion of the coating film.

For example, at present, the color printing surface theme pattern of the crown bottle cap is generally relatively simple, clear and personalized, the printing plate is mostly monochrome, two-color printing, the more complex the printing process, the more poor adhesion of the coating film occurs (of course, this should be reasonably arranged according to the samples provided by customers).

The adhesion of the base oil should be good, it is the basis of the cantin, cover polishing process.
Physical and chemical testing must be carried out for the direct coating after primer-free coating or color printing (adhesion, impact resistance); At the same time, it should be noted that the crown cap coating process is generally thinner and the outer wall cover light is thicker, which should be flexibly mastered according to the performance of the coating itself and the actual production situation.

In addition, it is recommended to store the finished product of the crown cap for 24h before use to ensure that the paint and ink layer on the surface of the print are fully cured. Poor film adhesion or poor impact resistance is a key factor affecting product quality, and it is also a common quality defect, so every link in the printing and coating process production must be strictly controlled.