Difference between revisions of "Anti Static Big Bags"

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[[File:Antistatic.jpg|thumb|right|A network card inside an antistatic big bag ]]
[[File:Anti Static Big Bags.jpg|thumb|right|Big Bags]]
An '''Anti Static Big Bag''' or [[Anti Static Bulk Bags]] are flexible containers that hold material and conduct electrical charges. Anti Static Big Bag is a container in large dimensions for storing and transporting dry, flowable products, for example sand, fertilizer's, and granules of plastics.


An antistatic big bag is a bag used for shipping (usually electronic) components, which are prone to damage caused by electrostatic discharge.
Anti Static Big Bags are most often made of thick woven polyethylene or polypropylene, either coated or uncoated, and normally measure around 110&nbsp;cm or 45-48 inches in diameter and varies in height from 100&nbsp;cm up to 200&nbsp;cm or 35 to 80 inches. Its capacity is normally around 1000&nbsp;kg or 2000&nbsp;lbs, but the larger units can store even more. The average big bag made to ship one metric ton can weigh between 5-7&nbsp;lbs.
These bags are usually plastic (PET) and have a distinctive color (silvery for metallised film, pink or black for polyethylene). The polyethylene variant may also take the form of foam or bubble wrap, either as sheets or bags. Because of the need for protection against  mechanical damage as well as electrostatic damage, layers of protection  are often used; because of this, a protected device can be packaged  inside a metalized PET film bag, which is packed inside a pink  polyethylene bubble-wrap bag, which is finally packed inside a rigid  black polyethylene box lined with pink poly foam.
To create the anti-static effect, the black or silver bags are slightly conductive, forming a Faraday cage  around the item to be protected and preventing any localized charges  from being deposited onto the protected devices as the bags are handled. The pink or green bags are made of low-charging material, i.e., the bag  itself will not create harmful charges, but will not protect the item  from electric fields. It is important that the bags only be opened at static-free workstations.


== See also ==
Transporting and loading is done on either pallet's or by lifting it from the loops. Bags are made with either one, two or four lifting loops. The single loop bag is suitable for one man operation as there is no need for a second man to put the loops on the loader hook. Emptying is made easy by a special opening in the bottom such as a discharge spout, of which there are several options, or by simply cutting it open.
* [[Anti Static Bulk Bags]]
 
* [[Anti Static Containers]]
==History==
* [[Anti Static Liners]]
Although there is disagreement on exactly where Anti Static Big Bags were first made and used, it is certain that they have been employed for a variety of packaging purposes since the 1940s.  These forerunners of the Anti Static Big Bag as we know it today were manufactured from PVC rubber and generally utilised within the rubber industry for the transportation of carbon black to be used as a reinforcing agent in a variety of rubber products.
 
By the 1960s, with the development of polypropylene combined with advances in weaving, the big bags as we know them today came into being and were rapidly adopted by a wide variety of oil and chemical companies to store and transport powdered and granular products. 
 
It was during the oil crisis of the mid 1970s that the FIBC really came into its own for transporting huge quantities of cement to the Middle East from across Europe for the rapid expansion of the oil producing countries.  At its zenith, upwards of 50,000 metric tons of cement was being shipped out on a weekly basis to feed the vast building programme.
 
The modern Anti Static Big Bags transports a growing figure of over ¼ billion tonnes of product each year and is used to handle, store and move products as varied as cereals to powdered chemicals and flour to animal feeds.  With a capacity of up to 3m³ and load capability ranging from ½ a tonne to two tonnes Anti Static Big Bags are highly cost effective, easily recyclable and ideal for virtually any free-flowing granule, powder, pellet or flake. FIBCs are also being developed to hold and filter fluid products.
 
==Classification of Anti Static Big Bags==
===Construction===
* U-Panel construction
* Circular/Tubular construction
* Baffle construction
* Four side panel construction
* Round construction
 
===Lifting options===
* Cross corner lifting loops
* Corner lifting loops
* Four loops
* Two loops
* Sling loops
 
 
===Electrostatic properties===
* Type - A - no special electrostatic safety features
* Type - B - Type B bags are not capable of generating propagating brush discharges. The wall of this Anti Static Big Bag  exhibits a breakdown voltage of 4 kilovolts or less.
* Type - C - Conductive Anti Static Big Bags . Constructed from electrically conductive fabric, designed to control electrostatic charges by grounding. A standard fabric used contains conductive threads or tape.
* Type - D - Anti Static Big Bags , essentially refers to those bags which have anti-static or static dissipative properties without the requirement of grounding.
 
===Industries Served===
*Chemicals
*Fertilizers
*Fiberglass
*Food Products
*Grains
*Mining (Used to hold shotcrete)
*Construction (Sand, gravel)
*Pharmaceuticals
*Pigments
*Plastics
*Refractories
*Rubber Additives
*Seed
*Peanuts
*Starch
*wall coat powder
 
===Flood Barrier Use===
Thailand utilized big bags to erect temporary walls to protect areas during the 2011 Thailand floods.  Walls built using big bags instead of smaller traditionally used sand bags were termed the big bag wall, or big bag barrier.
 
==See also==
*[[Anti Static Bulk Bags]]
*[[Packaging]]

Latest revision as of 01:52, 3 September 2012


Big Bags

An Anti Static Big Bag or Anti Static Bulk Bags are flexible containers that hold material and conduct electrical charges. Anti Static Big Bag is a container in large dimensions for storing and transporting dry, flowable products, for example sand, fertilizer's, and granules of plastics.

Anti Static Big Bags are most often made of thick woven polyethylene or polypropylene, either coated or uncoated, and normally measure around 110 cm or 45-48 inches in diameter and varies in height from 100 cm up to 200 cm or 35 to 80 inches. Its capacity is normally around 1000 kg or 2000 lbs, but the larger units can store even more. The average big bag made to ship one metric ton can weigh between 5-7 lbs.

Transporting and loading is done on either pallet's or by lifting it from the loops. Bags are made with either one, two or four lifting loops. The single loop bag is suitable for one man operation as there is no need for a second man to put the loops on the loader hook. Emptying is made easy by a special opening in the bottom such as a discharge spout, of which there are several options, or by simply cutting it open.

History

Although there is disagreement on exactly where Anti Static Big Bags were first made and used, it is certain that they have been employed for a variety of packaging purposes since the 1940s. These forerunners of the Anti Static Big Bag as we know it today were manufactured from PVC rubber and generally utilised within the rubber industry for the transportation of carbon black to be used as a reinforcing agent in a variety of rubber products.

By the 1960s, with the development of polypropylene combined with advances in weaving, the big bags as we know them today came into being and were rapidly adopted by a wide variety of oil and chemical companies to store and transport powdered and granular products.

It was during the oil crisis of the mid 1970s that the FIBC really came into its own for transporting huge quantities of cement to the Middle East from across Europe for the rapid expansion of the oil producing countries. At its zenith, upwards of 50,000 metric tons of cement was being shipped out on a weekly basis to feed the vast building programme.

The modern Anti Static Big Bags transports a growing figure of over ¼ billion tonnes of product each year and is used to handle, store and move products as varied as cereals to powdered chemicals and flour to animal feeds. With a capacity of up to 3m³ and load capability ranging from ½ a tonne to two tonnes Anti Static Big Bags are highly cost effective, easily recyclable and ideal for virtually any free-flowing granule, powder, pellet or flake. FIBCs are also being developed to hold and filter fluid products.

Classification of Anti Static Big Bags

Construction

  • U-Panel construction
  • Circular/Tubular construction
  • Baffle construction
  • Four side panel construction
  • Round construction

Lifting options

  • Cross corner lifting loops
  • Corner lifting loops
  • Four loops
  • Two loops
  • Sling loops


Electrostatic properties

  • Type - A - no special electrostatic safety features
  • Type - B - Type B bags are not capable of generating propagating brush discharges. The wall of this Anti Static Big Bag exhibits a breakdown voltage of 4 kilovolts or less.
  • Type - C - Conductive Anti Static Big Bags . Constructed from electrically conductive fabric, designed to control electrostatic charges by grounding. A standard fabric used contains conductive threads or tape.
  • Type - D - Anti Static Big Bags , essentially refers to those bags which have anti-static or static dissipative properties without the requirement of grounding.

Industries Served

  • Chemicals
  • Fertilizers
  • Fiberglass
  • Food Products
  • Grains
  • Mining (Used to hold shotcrete)
  • Construction (Sand, gravel)
  • Pharmaceuticals
  • Pigments
  • Plastics
  • Refractories
  • Rubber Additives
  • Seed
  • Peanuts
  • Starch
  • wall coat powder

Flood Barrier Use

Thailand utilized big bags to erect temporary walls to protect areas during the 2011 Thailand floods. Walls built using big bags instead of smaller traditionally used sand bags were termed the big bag wall, or big bag barrier.

See also

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