News-第6页-Xinxiang Linghang Packaging Materials Co., Ltd.

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2025-07-04
Will the packing strap also spoil?
Yes, packing straps, including those made of polypropylene (PP), polyester (PET), or steel, can degrade over time under certain conditions. Here’s how different factors might affect the longevity and effectiveness of packing straps: 1.UV Exposure: Prolonged exposure to sunlight or UV rays can weaken plastic straps, especially polypropylene (PP) straps. UV radiation can cause the material to become brittle and less flexible, which leads to a loss of strength and durability. This is particularly a concern in outdoor or long-term storage conditions. 2.Temperature Extremes: High temperatures can cause plastic straps, like PP or PET, to lose their tensile strength and elasticity. Conversely, very low temperatures can make the straps more brittle and less flexible, making them prone to cracking or snapping under tension. 3.Humidity and Moisture: Excess moisture can affect both plastic and steel straps. Plastic straps like PP can lose strength in humid conditions, while steel straps may rust or corrode if exposed to moisture. Moisture can also cause plastic straps to stretch more than intended, potentially compromising their strength. 4.Chemical Exposure: Certain chemicals, including oils, solvents, and acids, can degrade plastic straps over time. The material might lose its adhesive properties or become weakened in the presence of...
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2025-07-03
PP strapping is not necessarily the thicker the better?
When it comes to PP (Polypropylene) strapping, thickness is not always the determining factor for its performance. Several other factors contribute to the effectiveness of strapping, including: 1.Strength and Tensile Load: The most important characteristic is the strapping’s ability to hold the load securely. This depends not just on thickness, but on the material’s tensile strength and elongation properties. 2.Width and Thickness Balance: A thicker strap may seem stronger, but sometimes a wider, thinner strap could provide better load distribution and be just as effective, depending on the application. Overly thick straps can sometimes be less flexible and harder to handle. 3.Type of Load: For light or medium loads, a thinner PP strap can work perfectly well, as it will reduce costs and handling time. For heavier or more fragile items, a thicker or stronger strap might be necessary for extra security. 4.Environmental Factors: Exposure to UV rays, moisture, and temperature variations can affect the performance of strapping. The material’s resistance to these factors can often be more important than thickness alone. 5.Cost Efficiency: Thicker straps generally cost more, and if the application doesn’t require the extra strength, it’s not cost-effective to go with thicker options. The right balance of...
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2025-06-27
What are the stretching methods for stretch film?
Stretch film is a versatile packaging material used to secure, bundle, and stabilize products. Stretching methods are crucial for determining the performance, strength, and elasticity of the film. There are two main methods of stretching stretch film: 1. Machine Stretching This method involves stretching the film using a stretch wrapper machine. It is commonly used for high-volume packaging, as it allows for uniform stretching and efficient use of the film. Machine stretching generally occurs in two stages: Pre-stretching: In the pre-stretch section, the film is pulled or stretched over rollers before being applied to the pallet or product. This increases the film’s length and elasticity, making it stronger and more efficient in wrapping. Application: After pre-stretching, the film is wrapped around the product or pallet, creating a tight and secure bond. 2. Blown Stretching In the blown stretch film production process, the film is created by blowing the plastic material through a cylindrical die. This method creates a film that is biaxially stretched (both machine and transverse directions). Here’s how it works: Extrusion: The resin (usually linear low-density polyethylene, LLDPE) is heated and extruded through a die. Blowing: The extruded film is inflated by air pressure, stretching it both vertically...
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2025-06-26
Solution for PE wrapping film damage
PE wrapping film plays an important role in logistics packaging, as its high flexibility, tear resistance, and strong tensile strength provide effective protection for goods. However, in practical applications, the wrapping film may be damaged for various reasons, affecting the packaging effect. Here are some solutions to address its damage. 1. Check the quality of the wrapping film itself. Ensure that the purchased wrapping film comes from a reliable supplier with superior quality to avoid low-quality products being prone to breakage due to material issues. 2. Pay attention to the use of wrapping film. When using, the tension should be controlled appropriately to avoid excessive tension causing film breakage, and also to avoid insufficient tension affecting the packaging effect. In addition, the packaging process should be evenly pulled to avoid local stress concentration that may cause film damage. 3. Strengthen the protection of packaging materials. If the surface of the packaging is uneven or has sharp objects, padding or protective film should be added before packaging to reduce damage to the PE wrapping film. Meanwhile, during the transportation process, attention should be paid to protecting the edges of the wrapping film to avoid collisions that may cause edge breakage. 4....
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2025-06-25
How to properly store and maintain pe wrapping film to extend its service life?
Proper storage and maintenance of PE (Polyethylene) wrapping film are essential to extend its service life and ensure its effectiveness in packaging. Here’s how to store and maintain PE wrapping film properly: 1. Store in a Cool, Dry Place Temperature Control: PE film should be stored at a temperature between 10°C to 30°C (50°F to 86°F). Extreme heat or cold can affect the flexibility and strength of the film. High temperatures can cause the film to become brittle, while low temperatures may make it less stretchable. Avoid Direct Sunlight: Exposure to UV light from the sun can degrade the polymer, making the film more susceptible to tearing and reducing its strength. Store the film in a dark place or use opaque packaging if storing in transparent rolls. Humidity: Keep the storage area dry. High humidity or moisture can make the PE film sticky, or it may cause the film to become weaker and less effective in use. 2. Keep Away from Chemicals and Solvents Store PE wrapping film away from chemicals, oils, solvents, and other substances that can degrade the material. Even small traces of chemicals can cause the film to lose its protective properties or cause it to become...
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2025-06-24
Why are machine-use pet straps of higher quality than hand-use pet straps?
1.Production process and precision (1)Advanced production equipment: Machine strapping band are usually produced through highly automated professional equipment, and parameters such as temperature, pressure, and stretching during the production process can be more accurately controlled, resulting in more stable product quality and smaller differences between batches. For example, in the production of PET machine strapping, the machine can precisely control the extrusion temperature and stretching speed to make the molecular structure of the strapping more uniform, thereby improving its strength and toughness. (2)High dimensional accuracy: Machine strapping band require high precision in width, thickness, and other dimensions, and can generally be controlled within a small tolerance range to ensure good matching with the strapping machine, achieving smooth operations such as feeding, tightening, and welding. In contrast, the dimensional accuracy of manually used strapping may be relatively low, which can affect the packaging effect and efficiency. 2.Materials and Properties (1)High quality raw materials: In order to meet the requirements of high-speed operation and packaging, machine band usually use higher quality raw materials with higher purity and fewer impurities, which helps to improve the physical properties of the packaging belt. Taking PP machine strapping as an example, high-purity polypropylene resin is used...
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