Five-layer cardboard is produced with one of the types of sheets and is one of the most widely used products in the packaging industry. This product is used for packaging items such as clothing, machinery, electronic and medical equipment, and furniture. Although five-layer cardboard is widely available, not everyone knows the structure and features of this five-layer cardboard.
The five -layer carton structure and its details
As the name suggests, five-layer cardboard is produced from several layers of paper, which includes a surface layer, a bottom layer, two congressional or wavy or sinusoidal layers and a paper layer that is wavy between the two layers.
surface layer
This layer is the outermost layer of the cardboard sheet, which is often the most beautiful layer. The surface or outer layer of the cardboard sheet is usually 5 layers, according to the customer's needs, of various colors and It is beautiful made of white-gold and.... From this layer of paper for logo or brand printing, advertising images are considered through the latest offset or flexo printing machines from one to four colors.middle layer
The second layer, which is wavy or congressional, is responsible for resistance, strength and flexibility, and this layer, which is called flute, has different types such as BE, BC, AE, AB. that the manufacturer is based on the product that is supposed to be included in it. It selects and produces the type of flute based on its strength and flexibility.
The 5-layer cardboard sheet is a layer that is placed between the two flutes and connects them together. The paper used as the middle layer is usually cut paper, of medium quality.
Bottom layer It is a layer that is placed in direct contact with the packaged goods and strengthens the strength of the carton. This layer is made of soft or elastic paper. The five-layer cardboard is made of the 5-layer sheet that was explained above, this cardboard is very hard and strong and has good impact resistance. Usually, 130-180 gram paper is used to produce the five-layer sheet. Five-layer cardboard is used for packing goods weighing between 10 and 35 kg.