Detailed Introduction:

1. Appearance: The appearance is basically smooth and flat, without obvious defects such as dents, protrusions, bubbles, impurities, ripples, cracks, etc.

 among which

(1) Impurities, diameter ≤ 0.8mm, quantity ≤ 25 per square meter

(2) Bubbles, diameter ≤ 1.0mm, quantity ≤ 25 per square meter

(3) Wrinkles, allowing for a small amount

(4) End face neatness, ≤ 2mm

2. Specification and dimension deviation: width ± 5mm, thickness ± 0.005mm, length ± 1m

3. Same roll film joint: ≤ 1/100m

4. Technical indicators:

(1) Tensile strength>25Mpa

(2) Elongation at break>180%

(3) Right angle tearing force>80KN/m

5. Water solubility: Start dissolving<25 seconds

Complete dissolution<20 minutes. After complete dissolution, there are no filamentous or flaky impurities (measured at a water temperature of 25 ℃ for a 6cm x 6cm flaky test).

6. Shelf life: Five years.

 (Under the condition that the goods are stored without moisture).

[Note: Changes in the softness and hardness of water-soluble films caused by humidity and temperature changes are normal and the manufacturer will not handle them as quality abnormalities.]