Useful Knowledge of Corrugated Carton Boxes

Important factors that affect the durability of the carton boxes include paper material, flute quantity, layers, box style, size design, etc.

In terms of paper material, most commonly seen in the market are kraft paper, corrugated paper, and gray board.

It is not hard to distinguish each from color, hardness, weight and price.

Color: Kraft paper is in natural brown, corrugated paper is yellowish, while gray board is grayish white.

Hardness: Kraft paper is strong and abundant with fiber; corrugated paper is made of recycled kraft paper with less fiber; gray board is often used as the middle layer of the corrugated carton box. It would not be difficult to tell the quality if you pinch the paper by nail. The harder the paper gets broken, the higher the quality is.

The category of corrugated board

Even with same surface paper and inner paper in same quality, the performance of the corrugated board would be different due to different corrugated shapes of flutes. And it is commonly categorized into 4 flutes, A flute, C flute, B flute, and E flute.

A flute enables the board to be elastic with its good cushioning characteristics;

C flute is just similar to A flute, but is stronger and more impact resistant than A flute;

B flute is arranged intensively and turned into flat board, which is very suitable for printing;

E flute is thin and closely spaced, which helps form its stiffness.

We offer corrugated carton box for the purpose of gift packaging, parcel shipping, apparel storage, and office record, etc. Customers are suggested to send inquiries with detailed inquiries to Qingdao Flourish Industrial and Trading Co., Ltd., to get the best price.