News-第12页-Xinxiang Linghang Packaging Materials Co., Ltd.

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2025-07-07
Several common joint methods for packing straps
There are generally three types of packaging straps interfaces: ligature packaging, hot melt overlap packaging, and iron buckle packaging. 1.Ligation packaging. Ligation type packaging is a joint method that uses soft plastic ropes, hemp ropes, etc. as binding materials, and ties them into a flexible knot at the joint of the packaging belt. This type of joint is both sturdy and aesthetically pleasing, and easy to undo. 2.Hot melt overlap packaging. Hot melt overlap packaging uses heating methods such as electric heating fusion, mechanical high-frequency oscillation fusion, and ultrasonic fusion. The surface of the plastic strap is melted by heating, and the melted surfaces of the two straps ends are overlapped under a certain pressure for a certain period of time. After the melted surfaces condense, the plastic strap joints are bonded together. Features: Hot melt overlap packaging is the latest packaging method, suitable for polypropylene plastic band, because if polypropylene plastic band is mechanically fixed with iron buckles, its strength is only 50% of the base material, and adhesive connection is not suitable. The excuse is firm and beautiful, but cannot be undone. 3.Iron buckle packaging. First, use the one-way operation of the tensioner ratchet to tighten the packing...
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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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