The environmental standards for wooden panel materials used in crates are as follows:
1. **Laminated Timber (Plywood):** Also known as plywood, this material is commonly made by joining pieces of wood such as poplar or Chinese fir using methods like finger joints or splicing. It's often referred to as "finger-jointed" due to the way the edges are joined. The typical thickness is 18mm, though 16mm is also available. In terms of environmental protection, major brands usually offer E1, E0, and even zero formaldehyde grades, while smaller brands may provide E2.
2. **Wood Board (Blockboard):** This is a type of composite board made by gluing and splicing thin wood strips together. These strips are arranged in parallel, with the same thickness but varying lengths, then tightly spliced to form a five-layer structure. The thickness typically ranges from 1.2cm to 2.5cm. Major brands often provide E1, E0, and zero formaldehyde options, while smaller brands may only offer E2.
3. **Veneer:** Veneer is a thin slice of natural wood, usually between 0.2mm and 1mm thick. It is glued onto substrates like plywood, fiberboard, or particleboard to create a decorative surface. Known for its natural grain and color, it’s considered a high-quality finishing material. The standard thickness is around 2.6–3mm, and it commonly comes in E1 or E2 grades.
4. **Particle Board:** Also called chipboard or bagasse board, this material is made by compressing wood chips or other lignocellulosic waste with adhesives under heat and pressure. It is categorized into low-density (0.25–0.45 g/cm³), medium-density (0.55–0.70 g/cm³), and high-density (0.75–1.3 g/cm³). The standard thickness is 19mm, though 13mm, 16mm, and 19mm are commonly used. Environmental levels typically include E1 and E2.
5. **Melamine Board:** Full name is melamine-impregnated paper-faced board. This material uses paper soaked in melamine resin, dried, and then pressed onto particleboard, MDF, or hardboard to create a decorative surface. It is popular for its durability and aesthetic options. The thickness generally ranges from 16–20mm, and it is most commonly available in E1 and E2 grades.
6. **MDF (Medium-Density Fiberboard):** Made from wood fibers or plant fibers bonded with urea-formaldehyde resin, MDF is a versatile man-made board. It comes in various thicknesses, typically from 8–25mm, depending on the brand. It is available in E1, E2, and E0 grades, offering different levels of environmental safety.
7. **Plywood (Fine Core Board):** A multi-layered board made by pressing three or more layers of thin veneers together. The raw wood is cut into thin sheets and glued to form a sturdy structure. Common specifications include 3-ply, 5-ply, 9-ply, 12-ply, 15-ply, and 18-ply, with each ply being about 1mm thick. Thickness options include 21% and 25% of the total. Most plywood products meet E1 or E2 environmental standards.
These materials are widely used in crate manufacturing, and choosing the right one depends on both structural needs and environmental considerations.
Buffet Tables And Cabinets,Kitchen Storage Cabinet,Solid Wood Cabinets,Multi Layer Side Cabinet
INCHEE FURNITURE CO.,LTD , https://www.inchee.com