Water Soluble Fertilizer PE Bags Heat Seal For NPK Fertilizer Packing In China
Water Soluble Fertilizer PE Bags Used For NPK Fertilizer Packing In China
PE bags, i.e., polyethylene bags, are a type of plastic packaging bag made from polyethylene. The following is a detailed introduction:
Material Properties
PE is polymerized from ethylene monomers. It has excellent low-temperature resistance, with a minimum service temperature ranging from -70℃ to -100℃. It boasts good chemical stability, being resistant to most acids and alkalis. At room temperature, it is insoluble in general solvents, has low water absorption, and excellent electrical insulation performance.
It mainly includes steps such as raw material preparation, extrusion molding, printing, cutting, and bag making. Polyethylene particles are mixed, heated, melted, and extruded into films, which are then subjected to printing, cutting, heat sealing, and other operations to produce PE bags of various specifications.
Performance Advantages
They have good flexibility, toughness, and corrosion resistance, excellent moisture resistance, are not easy to break, and can effectively protect packaged items. Moreover, they have low cost, simple production processes, and can be recycled.
| MATERIAL | PE |
| THICKNESS(MM) | 0.2MM~0.55MM |
| THICKNESS TOLERANCE | +/-0.015MM |
|
Length deviation |
-0.5%~+0.5% |
|
width deviation |
-0.5%~+0.5% |
|
thickness deviation |
-1.0%~+1% |
|
Tensile strength (longitudinal/transverse) |
50.23 MPa in longitudinal |
|
Heat seal strength |
average strength of heat seal edge 18N/15mm, in line with standard requirements (≥12N/15mm). |
|
Puncture resistance |
average value 35N, in line with standard requirements (≥25N). |
|
Elongation at break (longitudinal/transverse) |
400% in longitudinal direction, 380% in transverse direction, in line with standard requirements (≥300%). |
|
Drop test (full load 25kg) |
Test method: free fall from 1.2m height 3 times (1 time each on the surface, edge and corner). |
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