The industry standard for PET strapping straps

Industry standards for PET strapping bands play a crucial role in quality control, safe use, and the standardized development of the industry. Here are some common standard contents:

Material Standard: PET strapping bands are mainly made from polyethylene terephthalate (PET). High - purity raw materials with few impurities are required to ensure that the strapping bands have good strength, toughness, and weather resistance. High - quality raw materials can ensure that the strapping bands can stably perform the bundling function in different environments and are not easily affected by temperature and humidity changes.

Appearance Standard: The appearance should be in the form of a straight strip. The surface should be clean, free of impurities, twists, cracks, perforations, burrs, damage, and other defects that affect the use function. The color should be uniform without obvious color differences. This not only concerns aesthetics but also affects its smooth operation in automatic strapping equipment.

Dimension Standard:

• Width: The allowable deviation of the width is generally controlled within ±0.76mm. For example, for a commonly used 12mm - wide strapping band, the actual width should be between 11.24 - 12.76mm. Strapping bands of different widths are suitable for different bundling scenarios, and the precise width standard ensures that they can be adapted to various strapping equipment and goods.

• Thickness: The allowable deviation of the thickness is usually ±0.06mm. An appropriate thickness ensures the load - bearing capacity and flexibility of the strapping band. Excessive thickness may lead to insufficient flexibility, while too thin a thickness will reduce the strength.

• Length: The length of each roll of strapping band should meet the nominal length with an error within a reasonable range to avoid affecting normal use due to insufficient length.

  
  

Performance Standard:

• Tensile Breaking Stress: It is divided into different levels. For example, the tensile breaking force of Grade I is not less than 390MPa, and that of Grade II is greater than or equal to 350MPa and less than 390MPa. Tensile breaking stress reflects the ability of the strapping band to withstand tension. When bundling heavy objects, sufficient tensile breaking force can prevent the strapping band from breaking and ensure the safety of the goods.

• Tensile Breaking Strain: The range is generally 5% - 25%. This indicator reflects the flexibility and ductility of the strapping band. When subjected to tension, the strapping band can moderately stretch without breaking, effectively buffering external forces.

• Impact Resistance: It should be able to withstand a certain degree of impact without breaking or being damaged, ensuring that during the handling and transportation of goods, even in case of bumps, collisions, etc., the strapping band can still maintain the bundling effect.

  
  

Classification Standard: It is usually divided into two categories: strapping bands for automatic strapping machines (referred to as machine - used bands, code J) and strapping bands for manual tools (referred to as hand - used bands, code S). Machine - used bands have higher requirements for dimensional accuracy and surface flatness to adapt to the high - speed operation of automatic strapping machines, while hand - used bands pay more attention to operational convenience and feel.

Environmental Standard: With the increasing awareness of environmental protection, PET strapping bands are required to be recyclable. In some areas, their degradability is also considered to a certain extent to reduce environmental pollution and meet the concept of sustainable development.

Labeling Standard: Product name, specifications, materials, execution standards, manufacturer, production date, and other information should be clearly marked on the outer packaging of the product for easy identification and traceability by users.