PE Kraft CB, which stands for Polyethylene Kraft Coated Board, is a type of packaging material that has a polyethylene coating on one or both sides of the Kraft board. This coating provides an excellent moisture barrier, making it an ideal material for packaging various products, especially those that are sensitive to moisture.
The manufacturing process for PE Kraft CB involves several steps, including:
1. Preparation of the Kraft Board: The first step involves preparing the Kraft board, which is made from wood pulp. The pulp is mixed with chemicals, such as sodium hydroxide and sodium sulfide, and then cooked in a digester to remove the lignin and other impurities. The resulting pulp is then washed, bleached, and refined to produce a strong, smooth, and uniform Kraft board.
2. Coating with Polyethylene: Once the Kraft board is prepared, it is coated with polyethylene. This is typically done using a process called extrusion coating. In this process, molten polyethylene is extruded onto the surface of the Kraft board, which is then cooled to solidify the coating.
3. Printing and Finishing: After coating, the PE Kraft CB can be printed with any desired graphics or text using a variety of printing techniques. The finished product can also be cut, folded, and laminated to create custom packaging solutions that meet specific customer requirements.
4. Quality Control: Throughout the manufacturing process, strict quality control measures are employed to ensure that the PE Kraft CB meets all relevant standards and specifications. This includes testing for moisture resistance, adhesion, and other key performance characteristics.
Overall, the manufacturing process for PE Kraft CB is highly controlled and precise, resulting in a packaging material that is both durable and reliable. With its superior moisture barrier properties, it is an ideal choice for packaging a wide range of products, from food and beverages to electronics and pharmaceuticals.
Post time: Apr-21-2023