01.Basic knowledge of flexible container bag

Flexible container bag is an abbreviation of "Flexible Container Bags", but it is generally called "flexible bag" or "flexible".
As the name suggests, it is made of soft material and can be folded small when not in use. The shape of the FIBC bag is mainly round and square, and a heavy lifting strap (hanging rope) is attached to the top of the bag, and can be lifted by a crane.
In addition to the upper inlet, many types also have a lower outlet, so there is no need to turn over the FIBC bag when discharging.
FIBC bags are widely used for efficient transportation and storage and lower costs.
Our company handles decontaminating flexible container bags, weather resistant flexible container bags, UN specification flexible container bags, flexible container bags that support unit flexible containers and units, and halal certification, so it handles flexible container bags that can be used with confidence for Islamic customers.

Our flexible container bag products

Flexible container bags are widely used from the viewpoint of cost reduction and efficiency of transportation and storage.

02.Characteristics of our flexible container bag

Basic part

  • 01

    Raw material: Polypromylene (PP) resin

  • 02

    Weight: Generally 4kg or less per bag

  • 03

    Capacity: Generally 1 cubic meter

  • 04

    Filling mass: Generally 300kg-1000kg

Special processing

  • 01

    Moisture prevention processing

    In order to prevent moisture from entering the flexible container bags, we attach an inner bag(*1) or laminate the flexible container bag(*2).
    *1 Inner bag: A PE bag set inside the flexible container bag.
    *2 Laminating: PE coating on the flexible container bag.

  • 02

    Leak prevention processing

    In order to prevent the filled powder from leaking from the seams of the flexible container bags, we attach an inner bag, or sew a nonwoven fabric on the seams of the flexible container bags.

  • 03

    Antistatic processing

    In order to prevent the generation of static electricity during filling, the inner bag or outer bag must be processed with an antistatic agent kneading resin.

  • 04

    Conductive processing

    Conductive original fabric can be expected to have an extremely high discharge effect compared to ordinary flexible container bags, and they are used for bags containing highly flammable substances. They are mainly divided into the following two types.
    1. Conductive laminating fabric: Original fabric made of PP yarn and laminated on both sides with carbon kneading resin.
    2. Conductive fiber original fabric: Original fabric in which carbon fibers are woven at equal intervals on the warp of PP yarn.
    ※Surface resistance value:

    Normal lamination fabric

    Conductive lamination fabric

    Conductive fiber original fabric

    Antistatic processing

    Surface leakage resistance(Ω)

    1.0×1015 or more

    6.7×105 or less

    1.0×107 or less

    1.0×108-10

    Surface leakage resistance(Ω)

    Normal lamination fabric

    1.0×1015 or more

    Conductive lamination fabric

    6.7×105 or less

    Conductive fiber original fabric

    1.0×107 or less

    Antistatic processing

    1.0×108-10

  • 05

    UV protection processing

    To use of UV inhibitor kneading resin for the body material of flexible container bags.
    *Flexible container bags made of PP original fabric may deteriorate rapidly when exposed to ultraviolet light, and make them unusable. Therefore, outdoor use should be avoided in principle.

  • 06

    Transport of Dangerous Goods (UN) Flexible Container Bags

    Flexible Container bags that can respond to the UN Recommendations on the Transport of Dangerous Goods. It is necessary to conduct a performance test of the flexible container bags by a public testing organization. You can check our flexible container bags conforming to the UN standard, from this page.

03.Structure of flexible container bags

Flexible container bags are mainly composed of the main body, input port, discharge port, hanging parts, etc. Please refer to the image below.

Structure of flexible container bags

04.Manufacturing process of flexible container bags

  • 01

    From raw material to yarn: We make yarn for flexible container bags from raw material PP.

  • 02

    From yarn to fabric: The fabric of the flexible container bags are woven by a special loom.

  • 03

    From fabric to bag: We sew the finished fabric and make it into a bag. In addition, we take time to inspect the quality.

  • 04

    Packing and Shipping: Fold it compress, and ship it.

PP

Raw material PP

Yarning

Yarning

Weaving

Weaving

Sewing

Sewing

Inspection

Inspection

Packing

Packing

05.JIS standard for flexible container bags

JIS Z 1651: 2017 test standards

Type

Performance

Repeating the top lifting test

Compression and stacking test

Drop impact test

Repetitive load

Final load

Running I type

6×SWL
70 cycles

8×SWL
1 time

In case of two stacking stages
4×SWL
6 hours

In case of 3 or more stacking stages
N(stacking stages)×1.8×SWL
6 hours

SWL×Fall height(0.8m)

Running J type (class 1, class 2)

2×SWL
70 cycles

5×SWL
1 time

Cross standard type

4×SWL
70 cycles

6×SWL
1 time

Cross single type

2×SWL
30 cycles

5×SWL
1 time

Running I type

Repeating the top lifting test

Repetitive load:6×SWL 70 cycles

Final load:8×SWL 1 time

Compression and stacking test

In case of two stacking stages:4×SWL 6 hours

In case of 3 or more stacking stages:N(stacking stages)×1.8×SWL 6 hours

Drop impact test

SWL×Fall height(0.8m)

Running J type (class 1, class 2)

Repeating the top lifting test

Repetitive load:2×SWL 70 cycles

Final load:5×SWL 1 time

Compression and stacking test

In case of two stacking stages:4×SWL 6 hours

In case of 3 or more stacking stages:N(stacking stages)×1.8×SWL 6 hours

Drop impact test

SWL×Fall height(0.8m)

Cross standard type

Repeating the top lifting test

Repetitive load:4×SWL 70 cycles

Final load:6×SWL 1 time

Compression and stacking test

In case of two stacking stages:4×SWL 6 hours

In case of 3 or more stacking stages:N(stacking stages)×1.8×SWL 6 hours

Drop impact test

SWL×Fall height(0.8m)

Cross single type

Repeating the top lifting test

Repetitive load:2×SWL 30 cycles

Final load:5×SWL 1 time

Compression and stacking test

In case of two stacking stages:4×SWL 6 hours

In case of 3 or more stacking stages:N(stacking stages)×1.8×SWL 6 hours

Drop impact test

SWL×Fall height(0.8m)

*SWL = Safe Working Load.

Type

Performance

Weatherability

Water resistance

Heat resistance

Cold resistance

Crumple resistance

Method A

Method B

Method C

Running I type

200 hours survival rate – 50% or more

200 hours survival rate – 80% or more

200 hours survival rate – 70% or more

25 hours survival rate – 85% or more

1kg load at 70°C for 1 hour

1kg load at -25°C for 1 hour

9.8N
1000 times

Running J type (class 1, class 2)

200 hours survival rate – 70% or more

200 hours survival rate – 85% or more

200 hours survival rate – 75% or more

Cross standard type

200 hours survival rate – 50% or more

200 hours survival rate – 80% or more

200 hours survival rate – 70% or more

9.8N
200 times

Cross single type

Running I type

Weatherability

Method A:200 hours survival rate – 50% or more

Method B:200 hours survival rate – 80% or more

Method C:200 hours survival rate – 70% or more

Water resistance

25 hours survival rate – 85% or more

Heat resistance

1kg load at 70°C for 1 hour

Cold resistance

1kg load at -25°C for 1 hour

Crumple resistance

9.8N 1,000 times

Running J type (class 1, class 2)

Weatherability

Method A:200 hours survival rate – 70% or more

Method B:200 hours survival rate – 85% or more

Method C:200 hours survival rate – 75% or more

Water resistance

25 hours survival rate – 85% or more

Heat resistance

1kg load at 70°C for 1 hour

Cold resistance

1kg load at -25°C for 1 hour

Crumple resistance

9.8N 1,000 times

Cross standard type

Weatherability

Method A:200 hours survival rate – 50% or more

Method B:200 hours survival rate – 80% or more

Method C:200 hours survival rate – 70% or more

Water resistance

25 hours survival rate – 85% or more

Heat resistance

1kg load at 70°C for 1 hour

Cold resistance

1kg load at -25°C for 1 hour

Crumple resistance

9.8N 200 times

Cross single type

Weatherability

Method A:200 hours survival rate – 50% or more

Method B:200 hours survival rate – 80% or more

Method C:200 hours survival rate – 70% or more

Water resistance

25 hours survival rate – 85% or more

Heat resistance

1kg load at 70°C for 1 hour

Cold resistance

1kg load at -25°C for 1 hour

Crumple resistance

9.8N 200 times

※JIS Z 1651: In 2017, the method is divided into A method, B method, and C method according to the type of weather resistance tester, and the standards are different.

  • Method A: Weather resistance test with UVB lamp.
  • Method B: Weather resistance test with sunshine carbon arc lamp.
  • Method C: Weather resistance test with xenon lamp.

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please apply.

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TEL:+81-92-474-1598

FAX:+81-92-474-1676  
Email: furecon@mediaint.co.jp

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