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2025-04-16
How is PET strapping made?
PET (Polyethylene Terephthalate) strapping is made through a multi-step manufacturing process that involves polymerization, extrusion, and specific treatments to ensure the strapping has the desired properties, such as strength, durability, and flexibility. Here’s a breakdown of how PET strapping is typically made: 1. Polymerization: The process starts with the polymerization of ethylene glycol (EG) and terephthalic acid (TPA), which are the two raw materials used to produce polyethylene terephthalate (PET). The polymerization process creates long chains of PET molecules, resulting in a strong, durable plastic material. 2. Extrusion: Once the PET polymer is formed, it is heated and melted before being passed through an extruder. The extruder shapes the molten PET into flat strands, which are cooled and solidified into a continuous extruded film. 3. Stretching (Orientation): The extruded PET bands are then stretched longitudinally (lengthwise). This process, known as orientation, aligns the polymer chains in the direction of the stretch, which increases the tensile strength of the material. 4. Slitting: After the stretching process, the PET film is slit into narrower strips, or straps, that can be used for different packaging applications. The width and thickness of these strips can vary based on the specifications required by the end...
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2025-04-15
Is PP strapping band better than PET strapping band?
When comparing PP (Polypropylene) strapping bands to PET (Polyethylene Terephthalate) strapping bands, each has its own advantages, and the choice depends on the specific application and requirements. Here’s a detailed comparison to help you understand the differences: 1. Material Strength and Durability: PET Strapping: PET bands are stronger and more durable than PP. They have higher tensile strength, making them ideal for heavier loads or long-term storage. PET strapping has better resistance to UV rays and temperature fluctuations. PP Strapping: PP bands are generally less strong than PET and are better suited for lighter, less demanding applications. They may not hold up as well under extreme temperatures or harsh environmental conditions. 2. Flexibility: PET Strapping: PET is less flexible compared to PP. It is more rigid, which makes it ideal for situations where extra strength and stability are required. PP Strapping: PP bands are more flexible, which makes them easier to handle and apply in certain packing situations. This flexibility is often seen as an advantage for lighter or smaller loads. PP Strapping: PP bands are more flexible, which makes them easier to handle and apply in certain packing situations. This flexibility is often seen as an advantage for lighter...
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2025-04-11
What is PE stretch film?
PE stretch film refers to Polyethylene stretch film, a highly stretchable plastic film that is used for wrapping and securing products for packaging, storage, and transportation. It is made from polyethylene (PE), a type of plastic known for its flexibility, durability, and resistance to moisture, which makes it ideal for protecting goods during transit and handling. High Stretchability: PE stretch film can be stretched several times its original length, allowing it to tightly wrap around products and hold them securely in place. Clinginess: It has a natural “cling” property, meaning it sticks to itself without the need for adhesives, making it easy to apply and remove. Durability: PE stretch film offers good puncture resistance and strength, providing protection against abrasions, dust, and moisture. Versatility: It is commonly used for wrapping items ranging from small packages to large pallets, and it can be applied manually or with a machine. Lightweight: It is lightweight, which helps reduce shipping costs compared to other forms of packaging. Transparency: The film is often clear, allowing the contents to be visible for easier identification and inspection. Types of PE Stretch Film: Hand Stretch Film: Typically used manually, this type of film is available in rolls that...
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2025-04-10
What size are PET straps?
The size of PET straps can vary depending on the specific application and requirements, but the most common dimensions for PET strapping are: 1. Width: 9mm (3/8″) to 32mm (1-1/4″) are typical widths used for PET strapping. 12mm (1/2″) and 16mm (5/8″) are common sizes for general packaging and bundling. 19mm (3/4″) and 25mm (1″) are often used for heavier-duty applications, such as securing pallets and larger loads. 2. Thickness: 0.4mm to 1.0mm are common thicknesses for PET strapping. The thickness of the strap is typically selected based on the weight and nature of the products being strapped. Thicker straps are generally used for heavier loads or more demanding applications. 3. Length: The length of a PET strapping roll can vary based on the size of the packaging machine or the needs of the user. Rolls typically come in lengths of 1,000 to 3,000 meters (about 3,300 to 10,000 feet), though custom lengths can be available depending on the manufacturer and application. Common Size Examples: For manual strapping: A typical size might be 12mm x 0.6mm. For machine strapping: A common size could be 16mm x 0.8mm or 19mm x 1.0mm, depending on the load and strapping machine used. Key...
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2025-04-09
What is a PET strapping roll used for?
A PET strapping roll is used for securing and bundling products or packages during shipping, storage, and handling. PET stands for Polyethylene Terephthalate, a strong and durable thermoplastic material that is commonly used for strapping. PET strapping is considered stronger and more durable than polypropylene (PP) strapping, making it suitable for heavier, more demanding applications. Main Uses of PET Strapping Rolls: Heavy-Duty Packaging: PET strapping is used for bundling heavy packages, pallets, or large items that need a high tensile strength. It provides strong resistance to breaking or snapping under pressure, making it ideal for securing heavy loads during transportation. It’s commonly used in industries such as steel, wood, bricks, cement, and automotive parts where products may weigh several hundred pounds or more. Securing Pallets: PET strapping is frequently used to secure products on pallets to prevent them from shifting or being damaged during transit. It ensures that goods are stable, reducing the risk of damage due to movement or rough handling during shipment. PET straps are commonly used in palletized loads, helping to keep boxes or bundles tightly together. Bundling Materials: In industries like textiles, paper, and lumber, PET strapping is used to bundle materials together. For example, it...
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2025-04-08
What is a PP strapping band?
A PP strapping band (also known as Polypropylene strapping or PP strap) is a type of plastic strap made from polypropylene (PP) resin. It is commonly used in packaging, shipping, and bundling applications to secure products, boxes, or packages together. The band is designed to be strong, lightweight, and cost-effective, making it an ideal choice for a variety of industries. Material: The strap is made from polypropylene (PP), a durable, flexible plastic that offers good tensile strength while being lightweight and easy to handle. PP is also resistant to moisture, chemicals, and UV rays, making the straps suitable for both indoor and outdoor use. Strength and Flexibility: While not as strong as PET (Polyethylene Terephthalate) strapping, PP strapping still provides adequate strength for light to medium-duty bundling and packaging tasks. It is flexible, which allows it to conform to the shape of the package, providing a secure hold. Sizes and Thicknesses: PP strapping bands come in various widths, thicknesses, and colors. The typical widths range from 5mm to 19mm (or more), and the thickness varies depending on the intended use. Common thicknesses range from 0.4mm to 1.2mm. Colors: PP strapping can come in different colors, including black, blue, green, and...
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