Mailer Box Specification - XiangGe Package Boxes Factory & Exporter

Linerboard Materials

The face paper is the paper on the surface of the mailbox cardboard, which directly affects the appearance and printing effect. Common face papers include kraft paper, natural kraft paper, white kraft paper, white face paper, and coated white cardboard.

Kraft Linerboard

Made from kraft softwood pulp, it is the strongest type of paperboard. It has good tear resistance, burst resistance and folding resistance.

Natural Kraft

It presents a classic untreated natural brown color with a slightly rough fiber texture on the surface. It retains the strength of wood fiber, has excellent toughness and strong impact resistance.

White Kraft

The surface of kraft paper is bleached to present a cleaner white color. It still retains some of the fiber texture of kraft paper, but is smoother than natural kraft paper.

Coated Kraft Liner

One side is white coating layer, the other side is kraft paper. The white side has excellent printing effect and good gloss, which is a common choice for mailing boxes.

Coat White Paper

It has a smooth surface, excellent printability, and high color reproduction, and is often used in packaging that requires high printing aesthetics.

Fluting Type

Corrugated paper is a wavy paper between the face paper and the back paper, which provides cushioning protection and support. According to the number of layers of cardboard, it can be divided into: single-sided board, three-layer cardboard, five-layer cardboard, seven-layer cardboard.

According to the specific flute type, it can be divided into: A flute, B flute, C flute, E flute, F flute. You can choose the flute type that best suits your mailbox according to the load-bearing and printing requirements. You can also choose a combination of flutes, such as EB flute (E flute on the surface and B flute on the inside), which has both the printability of E flute and the high strength of B flute. Learn more details about corrugated box.

Surface Finishing

Post-printing surface treatment can enhance the visual effect, improve the packaging brand image and provide additional protection. Common surface treatment processes include lamination, glossy film, matte film, touch film, UV varnishing, full UV, partial UV, hot stamping, hot stamping, embossing/debossing and embossing. Each process has its own unique effect.

Printing Sides

You can choose which side of the box to print on to showcase your brand and packaging information. Common printing options include outside printing, inside printing, full printing, and no printing.

Outside Print Only

The most common choice, the brand message and design are displayed on the outside of the box.

Inside Print Only

Keep the exterior plain or monochrome, and print a pattern or brand story on the interior.

Both Inside Print

Provide the most comprehensive brand display space, echoing inside and outside.

No Print & Plain

Only packaging function is required, no brand printing is required.

Custom in Size

To ensure your products fit smoothly and are well protected, all of our customizations are based on interior dimensions. You will need to measure the interior length, interior width, and interior height. We will factor in buffer space if necessary. No matter how unique your product dimensions are, we can customize mailer boxes with logo to perfectly fit your L x W x H dimensions.