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2026-07-06
Factors to Consider When Selecting PE Stretch Film
When choosing PE (polyethylene) stretch film, multiple specific factors should be considered to ensure that the selected film meets specific application requirements and can perform at its best during use. 1.Thickness Membrane thickness: The common thickness range is from 15 μ m to 50 μ m or thicker. When choosing, the weight and type of packaging contents should be considered: （1）Lightweight items: 15 μ m to 20 μ m; （2）Medium sized items: 20 μ m to 30 μ m; （3）Heavy or irregular items: 30 μ m and above. 2.Stretching and strength （1）Tensile strength: Choosing a film with high tensile strength can improve its load-bearing capacity and ensure that it will not break during packaging and transportation （2）Ductility: A good PE stretch film should be able to maintain its extensibility during the stretching process and not easily tear. 3.Transparency （1）Transparency requirement: If you need to view the contents of the package, choose a high transparency stretch film; If visibility is not required, black or white film can be chosen to provide additional privacy and light protection capabilities. 4.Protective properties （1）Moisture resistance: For goods that are prone to moisture, choose a film with good moisture resistance and waterproofness to prevent moisture from...
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2026-07-03
Storage Environment for PE Stretch Film
The storage environment of PE (polyethylene) stretch film significantly impacts its performance and service life. Proper storage conditions can minimize material aging and damage, ensuring the effectiveness of the stretch film in practical applications. 1.Temperature (1)Suitable temperature: PE stretch film is generally suitable for storage at room temperature (15 ° C to 25 ° C). Avoid storing in high temperature (over 30 ° C) environments, as high temperatures may cause a decrease in the physical properties of the membrane, affecting its stretchability and strength. (2)Prevent extreme temperatures: Avoid storing in environments below 0 ° C or above 50 ° C to prevent materials from becoming brittle or soft. 2.Humidity (1)Relative humidity: The ideal storage relative humidity is between 40% and 60%. Excessive humidity may cause the membrane to become damp, affecting its physical properties; However, low humidity may cause the membrane to become fragile. (2)Dry environment: Placing stretch film in a dry and ventilated place can help extend its service life. 3.Illumination (1)Avoid direct sunlight: PE stretch film should be stored in a dark environment to prevent direct exposure to sunlight. Ultraviolet radiation accelerates the aging of the film, causing it to become brittle and lose its elasticity. (2)Use shading...
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2026-06-30
The suitable temperature range for PP strapping
The performance of PP strapping (polypropylene strapping) varies under different temperature conditions. Below is the suitable temperature range and related information for its use: 1. Applicable temperature range (1)Low temperature environment: PP strapping performs well under low temperature conditions and can typically be used between -20 degrees Celsius (-4 degrees Fahrenheit) and 0 degrees Celsius (32 degrees Fahrenheit). Within this temperature range, the strength and toughness of the strapping remain good. (2)Room temperature environment: The optimal operating temperature is room temperature (approximately 20 ° C to 25 ° C, 68 ° F to 77 ° F), at which point PP strapping can exhibit its optimal performance, including tensile strength and flexibility. (3)High temperature environment: The use of PP strapping is limited to below 70 degrees Celsius (158 degrees Fahrenheit). In environments above this temperature, the strength of polypropylene material may decrease, causing the strapping to become soft and potentially losing its ability to hold items in place. Long term exposure to high temperatures may cause aging of the packaging, thereby reducing its service life and reliability. 2.Specific influencing factors (1)Thermal deformation: When the ambient temperature approaches or exceeds 70 ° C, PP strapping may undergo thermal deformation, resulting in loose...
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2026-06-24
The Impact of Material on the Price of PP Strapping
Material is the primary factors determining price. How do materials and raw materials affect prices (core price difference) The raw material for PP strapping is polypropylene particles, which are divided into three categories according to the formula, with costs ranging from high to low: new materials>semi recycled materials>fully recycled waste. 1.Brand new pure PP material (transparent/transparent white strapping band) >Raw materials: New brushed grade polypropylene particles, no recycled waste, can add a small amount of toughening masterbatch. Advantages: High tensile strength, good toughness, not easily brittle, strong hot melt bonding, no impurities, suitable for food, foreign trade, and long-distance transportation. Cost: The market price of new particles is much higher than that of recycled materials, and under the same specifications, the price is the most expensive. Additional cost: anti-aging masterbatch is added to some high-end models, which is not easy to be weathered when used outdoors, and the price rises again. 2.Semi new material (mixture, gray white/light gray band) Formula: Mix 30% to 60% new material with clean PP recycled crushed material. Performance: Moderate tensile strength, average toughness, prone to cracking in low temperature environments, average strength of hot melt interface. Price: 20% to 40% cheaper than brand new materials,...
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2026-06-22
Precautions when using PP strapping
It is crucial to ensure the safety and effectiveness of the operation when using PP (polypropylene) strapping. PP strapping is widely used in various industries due to its lightweight, economical, and excellent tensile strength. 1. Choose the appropriate pp strapping (1)Width and thickness: Choose the appropriate PP packing band based on the weight and volume of the items to be packaged. Heavier items require wider and thicker packing straps. (2)Type: There are different types of PP strapping (such as regular type, heat sealed type, etc.), which should be selected according to specific needs. 2. Preparation work (1)Work environment: Keep the work area dry and tidy, avoid contact with sharp objects, and reduce the risk of injury. (2)Tool preparation: Prepare packaging machines (manual or mechanical), packaging buckles (if needed), scissors or tape cutters, and other tools. 3. Operation steps (1)Measurement of strapping: Measure the required length of strapping based on the circumference of the bundled item, usually by a certain amount more than the circumference of the item. (2)Cutting: Use sharp scissors or tape cutters to cut the packing strap, keeping the cut surface flat and preventing sharp edges from causing harm to people or objects. (3)Binding: Wrap the packing band...
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2026-06-18
How to choose the appropriate PP strapping specifications based on the weight and size of the goods？
1.First, divide the weight range of the goods. (1).Light goods: single box ≤ 20kg (express small items, snacks, small commodities, small cardboard boxes) Characteristics of goods: The cardboard box is relatively small, the box is thin, and only prevents opening and scattering Recommended specifications:Width: 8mm/9mm；Thickness: 0.7-0.9mm Suitable for packaging: fully automatic express packaging machine, small semi-automatic machine Binding method: single/double vertical tying, no need for cross shaped characters Low tensile demand, narrow and thin strips offer the highest cost-effectiveness (2).Medium sized goods: 20-50kg (full box of daily necessities, liquor, grain and oil, ordinary food box) Characteristics of goods: Conventional factory cardboard boxes, short distance transportation for warehousing, mainly single-layer stacking 12mm × 0.8-1.0mm (preferred for cost-effectiveness)；13mm × 1.0mm (heavy cardboard box, woven bag) Binding method: Double vertical tying, heavier goods are packed in a cross shape. (3).Medium and heavy goods: 50-100kg (feed bags, fertilizers, whole box household appliances, multi-layer stacked cardboard boxes) Characteristics of goods: The container is under high pressure, long-distance transportation, multi-layer stacking, and prone to swelling and breakage Recommended specifications:13mm × 1.1～1.2mm;16mm × 1.0～1.1mm.Widening and thickening to enhance tension and prevent transportation interruptions (4).Heavy goods: above 100kg (stone, bricks, wooden blocks, pipes, whole pallet goods) Characteristics of...
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