Corrugated boxes, the cartons used in the market generally have ordinary boxes, also called cartoon boxes, low-level boxes (that is, regular-shaped boxes), paper accessories such as knife cards flat cards. The main raw material is a combination of cardboard. At present, the commonly used cardboard is three-layer cardboard, five-layer cardboard seven-layer cardboard. No matter how many layers of cardboard are divided into different pit types, the thickness of different pit types is different. For example, the most commonly used B pit with three layers is about 3 mm thick. The five most commonly used BC pits are about 7 mm thick. The seven most commonly used BCBK pits are about 10 mm thick. Other pit types include E pit thickness of about 1.5 mm, EB pit thickness of about 5 mm, A pit thickness of about 5.5 mm, etc. The cardboard is made of a layer of layer paper corrugated paper glued by a pit paper machine. The outermost layer of paper It is called the face paper, the innermost paper is called the inner paper, the wavy paper in the middle is called the pit paper. For example, A=B, A is the face paper, B is the inner paper. K=K means both the face the bottom paper are K paper. The burst resistance of a carton is determined by the top bottom paper, while the compression resistance is determined by the wavy paper in the middle, which is related to the weight of the paper we usually require.

Kunshan cartons can be roughly divided into four types according to the thickness of the pit:

　　一, the small pit box, also known as the E pit box, is written as A9A, A9B, B9B, etc. It is the thinnest carton, usually a carton. There are 3 layers of paper. The total thickness is 1.5-2.0 MM

　　 Two, single pit box, written as K3K, K3A, A3A, A3B, B3B, etc. Generally used to make inner boxes. There are 3 layers of paper. The total thickness is 2.5MM.

Three, double-pit box, this is the most commonly used carton. The writing is K=K, K=A, A=A, A=B, A=C, B=B, etc. There are 5 layers of paper. The total thickness is 5MM.

Four, three pit boxes, written as A3A, A3B, B3B, this is the thickest carton in the carton. Generally used to pack fragile heavier items, such as clothing/hardware. Because of its resistance The breaking strength is very good. The unit price is also very high. There are 7 layers of paper the total thickness is 7.5MM.

Then we understand the corrugated carton material of the Kunshan corrugated carton manufacturer. After the following is introduced by Guangzhou Carton Factory how to calculate the carton price? The standard calculation formula for carton: (length + width + 5) * (width + height + 3) * 2 * quote/10000 = The price of a carton, which includes trimming loss carton forming joints.

　　 The quotation in the Kunshan carton factory area is calculated in thousands of square inches, then all the figures are divided by 2.54 to convert centimeters to inches.