The three criteria help you judge unqualified corrugated boxes.

Good products require quality packaging. In all kinds of packaging, cartons have always been the most common form of packaging, although cartons more bear the transport safety function, but its sales function, appearance requirements are constantly being valued by users, so how to judge whether the function of corrugated cartons is qualified? www.chinacartonmachine.com

1, class A is unqualified: carton can not satisfy the function of protecting or marking the contents.

(1) seam disconnect.

(2) the dimension exceeds the allowable error range.

(3) the quality is below the prescribed minimum.

(4) the crevice line is broken or the paper surface is cut off.

(5) the surface is torn and pierced, with holes or irregular flaps, and there is excess board.

(6) mistakes in printing, incomplete printing or color patterns.

(7) pollution from external substances.

2, class B is unqualified: carton is defective or defective.

(1) the joints are not fully bonded, the adhesive tape joints are incomplete or the joints are not fully fitted.

(2) slotting into the edge of the carton.

(3) the cover can not be butted, and its clearance is greater than 3mm.

(4) water content of paperboard is higher than 20% or less than 5%.

(5) bending of carton at non indentation.

(6) incomplete printing or blurred picture and text.

(7) cardboard boxes do not take anti slip measures according to regulations.

3, class C is unqualified: cartons are poor in appearance, but do not affect their use functions.

(1) slotting or carton rough cutting.

(2) the surface of paperboard is rubbed and uneven, which affects the quality of printing.

(3) there are pollution spots on the box.

(4) scratches or marks are erased. Standard helps you judge unqualified corrugated boxes.

Inquiry for Our Product

When you contact us, please provide your detail requirements.
That will help us give you a valid quotation.

1. Your Name *
2. Your E-mail *
3. Message *