Types of corrugated cardboard
1. Double-layer corrugated cardboard: a corrugated cardboard composed of a layer of panels and a layer of corrugated paper.
2. Three-layer corrugated cardboard: corrugated cardboard composed of two layers of panels and one layer of corrugated cardboard.
3. Five-layer corrugated cardboard: a corrugated cardboard composed of three layers of panels and two layers of corrugated paper.
4. Seven-layer corrugated cardboard: a corrugated cardboard composed of four layers of panels and three layers of corrugation.
The characteristics of corrugated cardboard
1. Corrugated cardboard has good elasticity and is used to make packaging fragile products, as well as corrugated cardboard boxes that require high impact, collision and various dynamic loads. The large corrugated height and large corrugated spacing make it have the ability to reduce Shock performance, this form of cardboard can also be used as bushings, pads and shock absorbers.
2. Corrugated cardboard is used to make packaging for products with sufficient rigidity and low requirements for shock absorption and shock resistance. This type of cardboard has higher rigidity than Type A, and better printing can be obtained on this cardboard quality.
3. Three-layer C-type corrugated cardboard is the most commonly used corrugated cardboard. This cardboard combines the characteristics of A-type and B-type cardboard. It also has sufficient rigidity and good shock absorption performance. It is effectively used for packaging. Crushed products, soft products as well as hard products whose surfaces require protection from damage.
4. Corrugated cardboard is used more and more widely. The number of corrugations per meter length on the cardboard surface is more, and a flat surface and high plane stiffness can be obtained, which makes it possible to obtain high-quality decoration printing.
The number of layers of corrugated cardboard and its use
1. Single corrugated cardboard:
Single corrugated cardboard has 3 layers, which are face paper, inner paper and corrugated medium paper. This kind of three-layer corrugated cardboard accounts for the largest proportion and is mainly used for packaging lighter products, such as commonly used food.
2. Double corrugated cardboard:
Double corrugated cardboard has 5 layers, surface paper, middle liner and corrugated core paper, mainly used to pack fragile products with heavy weight. Double corrugated cardboard is usually produced by combining Type A and Type B, and Type A is usually placed inside the carton , used for cushioning, B type is placed on the outside to make the box surface printing more beautiful.
3. Three corrugated cardboard:
Three-layer corrugated cardboard has 7 layers of face paper, middle liner paper and corrugated medium paper, and is mainly used for packaging super-heavy products.
