Project Description

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Today, type D big bags have become more familiar to the groundable bag users, as a challenging alternative for Type C bags.

The usage of Type D big bags are much more practical than the groundable bags and they avoid operator errors. The special construction of the Type D fabric eliminates the need of an earth connection during the filling and discharging of materials.

Crohmiq® is the first true Type D fabric to appear in the market place since the early 1990s. The fabric was developed to cover a growing need for an ungrounded static protective solution for bulk packaging.

Due to its reputable safety record, as of today, over 500 leading companies worldwide prefer FIBCs manufactured from Crohmiq® fabric for their static bulk bag packaging requirements.

Today Crohmiq® is the only Type D fabric in the market which complies with the IEC standards.

UAC Packaging is proud to become the first manufacturer awarded a licence to produce the patented Crohmiq® fabric from Texente LLC.

  • Unlike Type C FIBC’s, Type D FIBC’s do not require grounding.
  • Can be used for the transportation of flammable powders, or when flammable solvents or gases are present around the FIBC..
  • It provides safety equal to a grounded Type C FIBC without the human error risk factor.
  • Type D fabric permits the dissipation of the charges in to the atmosphere by corona discharge.
  • A corona discharge is one form of an electrostatic discharge with a low energy, unlike sparks or brush discharges, it does not give way to ignition of flammable or explosive atmospheres.
  • Only CROHMIQ® ‘s patented technology provides a level of safety equal to a properly grounded Type C FIBC, but without the risks of human error. For these reasons, leading global companies continue to switch from Type C FIBC to the optimum safety of CROHMIQ® FIBC.
  • CROHMIQ® ‘s properties are permanent, therefore, its static dissipative performance does not decay with time nor wash off during wet reconditioning processes as many pseudo Type D FIBC’s do.
  • CROHMIQ® fabric is FDA compliant.
  • Internationally recognised as the leading Type D static protective FIBC fabric.
  • It is the only Type D fabric that will comply to the IEC61340 – 4 – 4 : 2005 standards.

If the surface of the Type D FIBC is contaminated or coated by any conductive material (such as water, oil etc) then spark discharges may occur.


  • Precautions should be taken in order to prevent the surface contamination.
  • No conductive object (such as metal items and tools) should be placed on the FIBC.
  • All conductors in the presence of flammable or explosive atmospheres should be grounded.
Product inside FIBCAtmosphere surrounding FIBC
Non-flammable atmosphereExplosive dust atmosphereExplosive gas or vapor
Nonflammable MIE 1000 mJA B C DB C DC D
MIE 3 mJ to 1000 mJB C DB C DC D

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