Qingdao Food grade liquid bladder flexitank/flexibag for spring water transportation

Project

Serial number

Inspection items

technical requirement

PE inner

1

Appearance

Brand new material, translucent, smooth surface, no impurities, no pollution, no wrinkles, particles, ribs, blisters

2

Structure

Three layer / four layer composite

3

Thickness deviation

5%

4

Tensile strength

≥37MPa

5

Elongation at break

≥800%

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

≥90

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 and even, with inner folded hemming and hemming, without stitching jumper, 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 inch / 4 inch

2

Handle、cover

≥0.4MPa

3

Seal ring

≥0.4MPa

Airtightness

In the whole bag inflation state, there is no air leakage at the heat sealing line and valve seal of the bag body.