In the modern packaging field, paper corner protectors are a common and important packaging material. As an efficient protective packaging accessory, paper corner protectors play a crucial role in ensuring the stability and safety of items during transportation and storage. Today, we will take an in-depth look at the manufacturing process of paper corner protectors and the eage board manufacturing line behind them.
The paper edge board production line starts with specialized paper materials. In its structure, the outer layer uses 180-300g/㎡ kraft paper. Kraft paper is tough and durable, and using it on the outer layer can provide the paper corner protector with surface wear resistance, much like putting a wear-resistant coat on it. This helps the paper corner protector effectively resist external friction during transportation and storage. The strength and durability of kraft paper enable the paper corner protector to continuously protect the corners of packaged items from damage when faced with heavy pressure and impact. The core layer of the paper corner protector consists of 5-7 layers of high-strength yarn tube paper, with each layer weighing 80-120g/㎡. These yarn tube papers are bonded together using corn starch adhesive and formed through rolling under high temperature (120-150°C) and high pressure (5-8 tons). After this process, the core layer of the paper corner protector possesses excellent compressive strength, can withstand significant pressure, and is not easily deformed, ensuring the protective effect.
The production of paper edge board relies on an efficient and precise edge board manufacturing line. This production line integrates a variety of advanced technologies to ensure product stability and consistency. Edge forming is a key process in the production line, where an automatic edge forming machine precisely wraps the outer kraft paper around the core layer. In this process, the close bonding between the outer paper and the core layer ensures that the surface of the paper corner protector is smooth and neat, while also enhancing the appearance and user experience. Through precise operations, the edges of the paper corner protector become smoother, preventing friction and damage caused by rough surfaces, thereby improving the overall quality of the packaging.
Additionally, angle control is another crucial aspect of the paper edge board production line. The paper edge board production line is equipped with V-shaped rollers that can precisely control the angle of the paper corner protectors, keeping the 90° angle deviation within 0.5°. This precise angle control is especially important for packaging with special requirements, as it can prevent mismatches during installation due to angle deviations, ensuring that the paper corner protector fits smoothly with the packaged items, thereby enhancing overall protective effect and ease of operation.
Overall, the edge board manufacturing line involves multiple steps and relies on high-precision equipment and technology. The automation and precision operations of the paper edge board production line not only improve production efficiency but also ensure high standards in performance and appearance. It is an indispensable part of the modern packaging industry. Through continuous innovation and improvement, paper corner protector production technology is moving towards becoming more environmentally friendly, efficient, and intelligent.
