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Product quality technical parameters | ||||||
Project | Inspection | Technical requirement | ||||
PE inner | 1 | Appearance | Brand new material,translucent,smooth surface,no impurities,no pollution,no wrinkles,particles,ribs,blisters | |||
2 | Structure | Three or four layers composite | ||||
3 | Thickness deviation | 5% | ||||
4 | Tensile strength | ≧37Mpa | ||||
5 | Elongation at break | ≧850% | ||||
6 | Falling darts | ≧1200g | ||||
7 | Temperature resistance | -20℃,no adhesion,weld mark and other abnormalities were found when the load was 9.8N,80℃ and 1h | ||||
8 | Right angle tear | ≧90N | ||||
9 | Heat sealing requirements | Hot welding seam straight,no obvious hot or virtual hot | ||||
PP outer | 1 | Appearance | The cloth surface is smooth,white,no jumper,no damage,no dirt,no smell,and the mark line is clear. | |||
2 | Sew | The stitching is straight with inner folded hemming and hemming,the number of stitches is 10cm or more than 10,and the wiring should be overlapped and sutured without leakage | ||||
3 | Tensile strength | Longitude≧1750N Latitudinal≧1750N Sewing part≧1500N | ||||
4 | Elongation at break | Longitude≧20% Latitudinal≧20% | ||||
5 | Bursting force | ≧3400N | ||||
Valve | 1 | Valve | Material PP,diameter 3 or 4 inch | |||
2 | Handle and cover | ≧0.4Mpa | ||||
3 | Seal ring | ≧0.4Mpa | ||||
Air tightness | There is no air leakage at the heat sealing line and valve seal of the bag body. |
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