Dust and loose fibers are flat-pressed die-cutting terms used to describe damage to the die-cut edges of cartons. In actual operation, the term refers to the generation of loose particles and debris, as well as the accumulation of fiber filaments, which loose particles, debris and fiber filaments adhere to the die-cut edges of the cardboard. It should be noted that most of these particles and fibers come from the surface of die-cut cardboard. This raises three issues:
How to carry out the flat-press die-cutting process? In order to accurately describe the flat-press die-cutting process using a steel die-cutting die, this process will be defined as a mobile process and consists of two progressive steps. The first step is called "blasting penetration", and the second step is called "blasting separation".
In the simultaneous die cutting process, the full length of the die cutting blade is in contact with the surface of the die cutting material. During die cutting, the die cutting blade exerts pressure on the cardboard material. Although we describe die cutting as a cutting process, to be more precise, this is a process in which the cardboard breaks under pressure. When the cutter drills into the cardboard and draws closer to the anvil pad, the cardboard surface is squeezed, stretched and compressed. In the end, the cardboard surface could not withstand the effects of these pressures, so it burst by "blasting through".
The word "blasting" is the most accurate way to describe the rupture of the cardboard surface, because the blade produces strong stretching and compressive forces on the cardboard, so the cardboard surface along the die cutting blade collapses. After the cardboard surface is broken, the sharpness of the die-cutting blade is not as great as the previous step, because the double bevel of the cutter / wedge converts the vertical pressure into a lateral moving force. When the cutter penetrates into the cardboard, the beveled surface of the cutter pushes the cardboard vertically to both sides.
Under strong breaking pressure, the cardboard is completely torn before the cutter and the anvil are in contact. This "blasting separation" process is divided into surface rupture, cutter wedge and cardboard breakage. Even under backward production conditions, as long as it is equipped with sharp steel knives, smooth backing plates and an optional die-cutting setting system, the cardboard will still break under strong blasting pressure.
What caused the dust and loose fibers? The dust and loose fibers were caused by the damaged die-cutting blades. The excess force caused the blades to hit the surface of the liner board. As a result, the blade edge is widened, so that the squeezing force and stretching force applied to the surface of the cardboard are greatly increased. The cardboard is further compressed and the tension is slowly increased until the cardboard breaks. This process is too hard, producing debris and "dust" molecules.
As the pressure on the tool increases, further compression forces dull the blade. The cardboard compresses and stretches beyond the normal range, and its surface breaks into three pieces. From the description of this process, we can conclude that the dust and loose fibers come from the surface of the cardboard, which is caused by the progressive damage of the die cutting blade.
How to avoid dust and loose fibers? The way to avoid this problem is to keep the steel blades in good condition. There are several methods to choose from. In practice, one of them can be used alone, or multiple methods can be used simultaneously.
These methods are: use of soft or "small thickness" die-cutting liners; calibrate the flattening die-cutting machine to prevent excessive force; calibrate and balance the pressure on the die-cutting tool to ensure accurate "Z-axis control" of the cutting edge ; Use the "floating knife" method to operate the important tools in the production planning; accurately integrate the double cardboard and area repair technology into the joint repair process to make the pressure cut even.
Office mesh Chairs are a popular choice for many workplaces due to their comfort, support, and breathability. These chairs are designed with a mesh material that is stretched across the backrest and seat, allowing for air circulation and preventing excessive heat and moisture buildup. This feature makes them particularly suitable for long hours of sitting, as it helps to keep the user cool and comfortable.
One of the main advantages of our office mesh chairs is their ergonomic design. They are typically equipped with adjustable features, such as seat height, armrests, and lumbar support, allowing users to customize the chair to their specific needs. This promotes good posture and reduces the risk of developing back and neck pain, which are common issues associated with prolonged sitting.
The mesh material used in these chairs is not only breathable but also flexible. It molds to the contours of the user's body, providing optimal support and distributing weight evenly. This helps to alleviate pressure points and prevent discomfort during extended periods of sitting. Additionally, the mesh material is durable and resistant to wear and tear, ensuring that the chair will last for a long time.
Another advantage of our office mesh chairs is their aesthetic appeal. The mesh backrest gives these chairs a modern and sleek look, making them a stylish addition to any office space. They are available in a variety of colors and designs, allowing users to choose a chair that matches their personal taste and the overall decor of the office.
In terms of maintenance, office mesh chairs are relatively easy to clean. The mesh material can be wiped down with a damp cloth or vacuumed to remove any dust or debris. This makes them a hygienic option for workplaces where cleanliness is essential.
Office Mesh Chairs,Folding Chair,Comfortable Chair,Comfortable Office Chair
Henan Toda Technology Co., Ltd. , https://www.todafurniture.com