Bulk bag base fabric testing standard
First, the appearance standard
1. The appearance is smooth and smooth, no missing, no thin weft, no jumper. qualified.
2. The cut edge is neat and there is no loose wire. qualified.
3. The roll is not folded, the roll is neat, and the tension is even. qualified.
4. The spacing of colored silk is subject to the specified requirements ± qualified.
5. The folding width is +1cm according to the process requirement and qualified.
6. There is no obvious oil stain on the surface of the base fabric.
7. Kibuk weight tolerance +2g-4g. qualified.
8. Dirty latitude 3 or more failed.
9. Menstruation, 2 or more than 1 meter, less than 7 intervals are not qualified.
10. Holes are not qualified.
11. Three or more skipping passes are not qualified.
12. Three or more hops are not qualified.
13. The hair is severe and unqualified.
14. There is a clear color difference.
15. Oily, unqualified.
16. The discounted coated fabric is unqualified.
17. The warp and weft knots are too large and too long to pass.
Second, the tensile test standard
1.150g/m2 or less, containing 150g/m2 cloth, longitudinal direction ≥1500N/5cm, horizontal ≥1400N/5cm.
2.150g/m2 or more to 170g/m2 cloth, longitudinal direction ≥1800N/5cm, horizontal ≥1700N/5cm.
3.170g/m2 or more to 190g/m2 cloth, longitudinal direction ≥1950N/5cm, horizontal ≥1850N/5cm
The cloth of 4.190 g/m2 or more, the longitudinal direction is ≥ 2100 N/5 cm, and the lateral direction is ≥ 2000 N/5 cm.
5. Elongation <25‰