Three criteria help you to judge corrugated boxes

Among the various packaging types, carton boxes have always been the most common form of packaging. Although carton boxes are more responsible for this transportation safety function, their sales functions and appearance requirements are constantly being valued by users. How to judge the corrugated boxes? Is the functional quality qualified?

1, Class A failed: The carton cannot meet the function of protecting or marking the contents.

(1) The seam is disengaged.

(2) The size is beyond the allowable error range.

(3) The quality is lower than the specified minimum value.

(4) The indentation line is broken or the paper is cut off.

(5) The surface is torn and punctured, with holes or cover flaps irregular and adhering to excess cardboard pieces.

(6) There are errors in printing, incomplete printing, or color patterns.

(7) Contamination caused by external substances.

2, Class B failed: The carton is incomplete or has problems.

(1) Incomplete adhesion of the seams, incomplete tape joints, or insufficient joint tack.

(2) Slot into the edge of the side of the carton.

(3) The cover sheet cannot be docked, and the gap is greater than 3mm.

(4) The moisture content of the board is higher than 20% or lower than 5%.

(5) The carton is not bent at the indentation.

(6) Incomplete print or blurred graphics.

(7) The cartons did not take anti-skid measures as required.

3, Class C failed: The appearance of the carton is not good, but it does not affect its use.

(1) Grooving or carton die cutting rough.

(2) There is a splay-like bump on the surface of the board, which affects the quality of printed graphics.

(3) Contaminated spots on the box surface.

(4) Shallow scratches or marks are wiped off.