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| Category | Parameter Name | Typical Value/Range | Description |
| Substrate Properties | Substrate Material | Polyester fiber/cotton cloth/glass fiber composite | |
| Substrate Thickness | 0.15-0.5 mm | The higher the thickness, the stronger the tear resistance. | |
| Weight (Substrate) | 80-200 g/m² | The higher the weight, the stronger the mechanical properties. | |
| Physical Properties | Tensile Strength (Longitudinal) | 150-400 N/cm² | Outstanding longitudinal tensile strength, suitable for load-bearing applications. |
| Elongation at Break | 10-30% | Lower ductility, but stronger deformation resistance. | |
| Abrasion Resistance (Martindale Method) | ≥5000 times (no damage) | The surface fiber cloth is resistant to repeated friction. | |
| Adhesion Performance | Initial Tack (Rolling Ball Method) | 10-20 (Steel ball stays) | The larger the value, the stronger the initial viscosity. |
| Holding Power (1kg weight) | ≥48 hours (no slippage) | Not easy to fall off under long-term load. | |
| 180° Peel Strength (Steel Plate) | 8-15 N/cm | The peel strength is significantly higher than that of BOPP tape, suitable for rough surfaces. | |
| Environmental Tolerance | Temperature Range | -30°C ~ +100°C | |
| Aging Resistance | UV resistant, moisture resistant | UV-resistant coating type is required for long-term outdoor use. | |
| Solvent Resistance | Moderate (resistant to weak acids and weak alkalis) | Avoid contact with strong acids, strong alkalis, or organic solvents. | |
| Appearance and Process | Color | Custom printing | |
| Width | 25mm/50mm/75mm/100mm/Customizable | ||
| Core Inner Diameter | 76mm (3 inches) | ||
| Special Functional Type | Flame Retardant Type | Complies with UL94 V-0 flame retardant standard. | Used in fire prevention fields such as electricity and aviation. |
| Conductive Type | Surface resistance <10⁴ Ω | Anti-static or electromagnetic shielding scenarios. | |
| High Temperature Resistant Type | Short-term tolerance +150°C (silicone-based adhesive) | High-temperature equipment bundling (such as engine pipelines) |
Material characteristics: Polyethylene is polymerized from ethylene and has the characteristics of being non-toxic, odorless, acid and alkali resistant, low temperature resistant, waterproof and insulating. It is widely used in the packaging field.
Classification and structure
Classified by material density:
High-pressure PE bag (LDPE): Made of low-density polyethylene, it is flexible and transparent, suitable for food preservation film, soft packaging, etc.
Low-pressure PE bag (HDPE): Made of high-density polyethylene, it has high hardness and strong puncture resistance, suitable for heavy object packaging or industrial use.
Recyclable PE bag: Made of recycled polyethylene (such as Recycled LDPE/HDPE), which conforms to the environmental protection trend.
Classified by use and process:
Flat bag: The bottom is sealed, the structure is simple, and it is used for packaging lightweight items.
Resealable bag/zip lock bag: With a reusable sealing strip, it is convenient for storing food or small items.
Anti-static PE bag: Anti-static masterbatch is added to protect electronic products from electrostatic damage.
Core characteristics
Safety:
Food-grade PE bags meet national standards (GB4806.7-2016), are non-toxic and odorless, and are suitable for room temperature food packaging.
Not suitable for high temperature (>110℃), high oil or frozen environments, as it may release harmful substances.
Physical properties:
Low-temperature resistant (-50℃ to 80℃), good chemical stability, but easy to age at high temperatures.
High-pressure PE bags have high toughness but low strength; low-pressure PE bags have high strength but poor ductility.
Environmental protection:
Recyclable PE materials support recycling, reducing resource waste.
Application scenarios
Food packaging:
LDPE cling film is used for preserving vegetables and meat; HDPE bags are used for loose food in supermarkets.
Industry and logistics:
Anti-static PE bags are used for packaging electronic components; HDPE heavy-duty bags are used for transporting machinery parts.
Daily life:
Resealable bags store jewelry and small items; flat bags are used for packaging clothing and daily necessities.
Keyword:
Duct tape
It has the characteristics of flexibility, chemical corrosion resistance, and water resistance, and is widely used in packaging, agricultural covering, and industrial protection.
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