EP1532059A1 - Device for neutralization of electrostatic charges from material in bulk containers - Google Patents

Device for neutralization of electrostatic charges from material in bulk containers

Info

Publication number
EP1532059A1
EP1532059A1 EP20030762966 EP03762966A EP1532059A1 EP 1532059 A1 EP1532059 A1 EP 1532059A1 EP 20030762966 EP20030762966 EP 20030762966 EP 03762966 A EP03762966 A EP 03762966A EP 1532059 A1 EP1532059 A1 EP 1532059A1
Authority
EP
European Patent Office
Prior art keywords
inner device
fibers
container
fibc
static
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20030762966
Other languages
German (de)
French (fr)
Inventor
Avram Yukar Dudullu LEVI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sunjut Suni Jut Sanayi Ve Ticaret AS
Original Assignee
Sunjut Suni Jut Sanayi Ve Ticaret AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/328,110 external-priority patent/US6900975B2/en
Application filed by Sunjut Suni Jut Sanayi Ve Ticaret AS filed Critical Sunjut Suni Jut Sanayi Ve Ticaret AS
Publication of EP1532059A1 publication Critical patent/EP1532059A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/16—Large containers flexible
    • B65D88/1612—Flexible intermediate bulk containers [FIBC]
    • B65D88/1631—Flexible intermediate bulk containers [FIBC] with shape keeping flexible elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/16—Large containers flexible
    • B65D88/1612—Flexible intermediate bulk containers [FIBC]
    • B65D88/165—Flexible intermediate bulk containers [FIBC] with electrically conductive properties
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Definitions

  • FIBC Container(FIBC) , which enables the immediate neutralization of the electrostatic charges generated during filling, emptying or transporting of the RBC.
  • FIBC's are used to carry bulk solids powders, such as sugar, flour, starch and chemical substances.
  • Electrostatic charges may cause electrostatic discharges and ignition risks in the presence of flammable atmosphere.
  • An object of the present invention is to neutralize any electrostatic charges generated within the material in the FIBC bag during filling, emptying and transporting the FIBC, to avoid ignition risks in the presence of a flammable atmosphere.
  • the electrostatic changes generated in the material within the FIBC are neutralized in this invention by contact with inner devices which conduct the charge to the atmosphere.
  • inner devices consist of anti-static fibers configured within the material in the FIBC.
  • Figure 1 Perspective view of an example of a FIBC with inner devices for neutralizing electrostatic charge arranged in parallel with side
  • Figure 2 Top view of an example of a FIBC with inner devices for neutralizing electrostatic charge arranged in parallel with one side
  • Figure 3 Perspective view of an example of a RBC with inner devices for neutralizing electrostatic charge arranged across to the corners
  • Figure 4 Top view of an example of a RBC with inner devices for neutralizing electrostatic charge arranged across to the corners
  • Figure 5 Top view of an example of a RBC with inner devices for neutralizing electrostatic charge arranged in parallel diagonally across the FIBC.
  • Figure 6 Top view of an example of a FIBC witti inner devices for neutralizing electrostatic charge arranged in parallel crisscrossing diagonally a ⁇ oss the FIBC .
  • Figure 7 Top view of an example of a RBC wil ) inner devices for neutralizing electrostatic charge arranged in parallel and perpendicular to opposing sides of the RBC.
  • Figure 8 Front view of an example of an inner device for a FIBC, in the shape of a ladder (double column)
  • FIG. 9 Front of an example of an inner device for a .
  • FIBC in the shape of a ladder or web (single column) DETAILED DESCRIPTION OF INVENTION
  • the FIBC (1) which enables neutralization of the electrostatic charge generated within the material in the bag, developed with this invention, is characterized by inner devices (3) knitted preferably with multi-filaments or mono-filaments and configured in the various forms including ladder, web, or net,with a special antistatic additive.
  • the FIBC inner devices are arranged in an appropriate configuration within the FIBC so as to have maximum contact with the bulk solids powders in the RBC in order to neutralize the electrostatic charge at a distance from the RBC's walls.
  • These inner devices (3) are configured in various geometrical forms and configurations to enable the neutralization of the electrostatic charge generated during filling, emptying and transporting and are preferably made of the same material as the sides.
  • the inner devices are comprised of mono-filament or multi-filament fibers. These fibers for neutralizing the electrostatic charges preferably include permanent antistatic additives such as IRGASTAT P18 or IRGASTAT P22 manufactured by Ciba Gefgy ® at a ratio of %6-%20 preferably.
  • the said inner devices (3) are produced from materials which can conduct electricity at each point. These antistatic agents are polyamide/polyether block amides which are incorporated as melt additives.
  • the resistance of the inner devices (3 ⁇ of the RBC (1), which enables neutralization of the electrostatic charge generated within the material in the (RBC), is between 10 7 and 10 12 ohms/square.
  • the fibers added to the inner devices (3) of the RBC (1) consist of polyamide and fiber conductive material with diameters of approximately 0,2 to 15 ⁇ m (micron) and are constructed in the inner devices so as to form a web, net or ladder configuration
  • Handles (2) are preferably provided to facilitate transport.
  • the inner devices (3) are configured in any appropriate arrangement or shape in a manner to maximize contact with the bulk material with which the FIBC is filled. This includes, but is not limited to, inner devices configured in parallel, diagonally or centrally within the RBC in reference to the side and bottom walls.
  • the inner devices (3) are preferably made of materials which readily conduct electricity o the RBC outer walls by direct contact with the lateral devices (4).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Nonwoven Fabrics (AREA)
  • Wrappers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

The present invention is about a mechanism in a container such as a FIBC (1), which enables the immediate neutralization of the electrostatic charges generated during filling, emptying or transporting of the containers. FIBCs are used to carry bulk solids powders, such as sugar, flour, starch and chemical substances. The FIBC (1), which enables neutralization of the electrostatic charge generated within the material in the bag, developed with this invention, is characterized by inner devices (3) knitted preferably with multi-filaments or mono-filaments and tapes, made of polymers in the form of a web or net with a special antistatic additive, established to an appropriate place in the FIBC (1) so as to have maximum contact with the bulk solids powders in the FIBC (1) in order to neutralize the electrostatic charge at distant points of the FIBC's wall.

Description

DEVICE FOR NEUTRALIZATION OF ELECTROSTATIC CHARGES FROM MATERIAL IN BULK CONTAINERS
BACKGROUND The present invention addresses a mechanism for use in a Flexible Intermediate Bulk
Container(FIBC) , which enables the immediate neutralization of the electrostatic charges generated during filling, emptying or transporting of the RBC. FIBC's are used to carry bulk solids powders, such as sugar, flour, starch and chemical substances.
During the filling and emptying of FIBC's which are typically made of polymer-based fabric such as polypropylene, HDPE, LLDPE etc., electrical charges can accumulate on the FIBC and inside the FIBC . Electrostatic charges may cause electrostatic discharges and ignition risks in the presence of flammable atmosphere.
In relation to this issue, there is a patent application TR2001/03 44, filed on 28 November 2001 at Turkish Patent Institute, titled "Flexible intermediate bulk container with multiple conductive fibers having permanent antistatic effect". It is explained that the electrostatic charge accumulated on the FIBC is discharged to the surrounding atmosphere by permanent anti-static-treated multi-filaments fibers in the RBC. With the defined practice in this application the electrostatic charge generated during filling and emptying on the FIBC is neutralized. The static charge generated at a distance from the walls of the FIBC, however, cannot be neutralized immediately.
BRIEF SUMMARY OF THE INVENTION
An object of the present invention is to neutralize any electrostatic charges generated within the material in the FIBC bag during filling, emptying and transporting the FIBC, to avoid ignition risks in the presence of a flammable atmosphere.
The electrostatic changes generated in the material within the FIBC are neutralized in this invention by contact with inner devices which conduct the charge to the atmosphere. These inner devices consist of anti-static fibers configured within the material in the FIBC. Although the present invention is described and depicted primarily in reference to its use inside FIBC's the principles of the inner devices can be readily adapted by one skilled in the art to other applications such as containers of all sizes including rail cars, trucks, silo's and any other enclosure used for storage/transport of bulk solid powders.
BRIEF DESCRIPTION FIGURES
The figures attached for further explanation of the FIBC and inner devices, which enables neutralization of the electrostatic charges within the material in the FIBC, are as follows:
Figure 1 - Perspective view of an example of a FIBC with inner devices for neutralizing electrostatic charge arranged in parallel with side
Figure 2 - Top view of an example of a FIBC with inner devices for neutralizing electrostatic charge arranged in parallel with one side Figure 3 - Perspective view of an example of a RBC with inner devices for neutralizing electrostatic charge arranged across to the corners
Figure 4 - Top view of an example of a RBC with inner devices for neutralizing electrostatic charge arranged across to the corners
Figure 5 - Top view of an example of a RBC with inner devices for neutralizing electrostatic charge arranged in parallel diagonally across the FIBC.
Figure 6 - Top view of an example of a FIBC witti inner devices for neutralizing electrostatic charge arranged in parallel crisscrossing diagonally aσoss the FIBC .
Figure 7 - Top view of an example of a RBC wil ) inner devices for neutralizing electrostatic charge arranged in parallel and perpendicular to opposing sides of the RBC. Figure 8 - Front view of an example of an inner device for a FIBC, in the shape of a ladder (double column)
Figure 9 - Front of an example of an inner device for a . FIBC, in the shape of a ladder or web (single column) DETAILED DESCRIPTION OF INVENTION
The FIBC (1), which enables neutralization of the electrostatic charge generated within the material in the bag, developed with this invention, is characterized by inner devices (3) knitted preferably with multi-filaments or mono-filaments and configured in the various forms including ladder, web, or net,with a special antistatic additive. The FIBC inner devices are arranged in an appropriate configuration within the FIBC so as to have maximum contact with the bulk solids powders in the RBC in order to neutralize the electrostatic charge at a distance from the RBC's walls. There can be any number of internal devices as warranted to adequately neutralize the material within the bag. Sample configurations of these internal devices are depicted in Rgures 1-7. These inner devices (3) are configured in various geometrical forms and configurations to enable the neutralization of the electrostatic charge generated during filling, emptying and transporting and are preferably made of the same material as the sides.
The inner devices are comprised of mono-filament or multi-filament fibers. These fibers for neutralizing the electrostatic charges preferably include permanent antistatic additives such as IRGASTAT P18 or IRGASTAT P22 manufactured by Ciba Gefgy® at a ratio of %6-%20 preferably. The said inner devices (3) are produced from materials which can conduct electricity at each point. These antistatic agents are polyamide/polyether block amides which are incorporated as melt additives.
The resistance of the inner devices (3} of the RBC (1), which enables neutralization of the electrostatic charge generated within the material in the (RBC), is between 10 7 and 10 12 ohms/square.
The fibers added to the inner devices (3) of the RBC (1), consist of polyamide and fiber conductive material with diameters of approximately 0,2 to 15 μm (micron) and are constructed in the inner devices so as to form a web, net or ladder configuration
Handles (2) are preferably provided to facilitate transport.
The inner devices (3) are configured in any appropriate arrangement or shape in a manner to maximize contact with the bulk material with which the FIBC is filled. This includes, but is not limited to, inner devices configured in parallel, diagonally or centrally within the RBC in reference to the side and bottom walls.
The inner devices (3) are preferably made of materials which readily conduct electricity o the RBC outer walls by direct contact with the lateral devices (4).

Claims

1. An inner device comprising: anti-static fibers the anti-static fibers configured to maximize contact with a material to be neutralized the antistatic fibers connected at the outer limits of the material to conduct electrostatic charges to atmosphere via contact with an outer container which is configured to contain the inner device.
2. An inner device according to claim 1 in which the anti-static fibers are mono-filament.
3. An inner device according to claim 1 in which the anti-static fibers are multi-filament.
4. An inner device according to claim 1 in which the fibers comprising the inner device are configured in a interconnected manner.
5. An inner device according to claim 1 in which the diameter of the fibers ranges from 0.2 to 15 μm (micron).
6. An inner device according to claim 1 in which the inner device is characterized by a resistance ranging from 107 to 1012 ohms/square.
7. An inner device according to claim 1 in which the inner device is made of materials which conduct electricity.
8. An inner devise according to claim 1 in which the container is made of the same material as the inner device.
9. A plurality of inner devices according to claim 1 which are configured within the container- in an arrangement that facilitates maximum contact with the material within the container.
10. An inner device according to claim 1 in which the container is a Flexible
Intermediate Bulk Container (FIBC).
11. An inner device according to claim 1 in which the anti-static fibers include anti-static additives of polyamide and fiber conductive material.
12. An inner device according to claim 11 in which the additive is a permanent antistatic agent preferably IRGASTAT P18 or IRGASTAT P 22.
13. A RBC according to claim 11 in which the IRGASTAT P18 or IRGASTAT P22 additive is in the range of 6-20%.
14. A method of neutralizing the electrostatic charge generated by material consisting of:
configuring an inner device of anti-static fibers. - configuring the anti-static fibers comprising the inner device in a manner to maximize contact with material to be neutralized, connecting the anti-static fibers to the outer limits of the material to conduct static electricity to atmosphere via contact with an outer container which is configured to contain the inner device and material.
15. A method according to claim 14 in which the anti-static fibers include antistatic additives of polyamide and fiber conductive material, preferably IRGASTATE 18 or IRGASTAT 22.
16. A method according to claim 14 in which a plurality of inner devices are configured within the container.
17. A method according to claim 14 in which the container is made of the same material as the inner device.
18. A method according to claim 14 in which the container is a FIBC.
19. A method according to claim 14 in which the diameter of the fibers ranges from 0.2 to 15 μm (micron).
20. An inner device according to claim 14 in which the inner device is made of materials which conduct electricity.
EP20030762966 2002-07-05 2003-07-07 Device for neutralization of electrostatic charges from material in bulk containers Withdrawn EP1532059A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
TR200201757 2002-07-05
TR200201757 2002-07-05
US328110 2002-12-23
US10/328,110 US6900975B2 (en) 2002-07-05 2002-12-23 Inner device for neutralization of electrostatic charges from material in contact
PCT/TR2003/000057 WO2004005164A1 (en) 2002-07-05 2003-07-07 Device for neutralization of electrostatic charges from material in bulk containers

Publications (1)

Publication Number Publication Date
EP1532059A1 true EP1532059A1 (en) 2005-05-25

Family

ID=30117599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030762966 Withdrawn EP1532059A1 (en) 2002-07-05 2003-07-07 Device for neutralization of electrostatic charges from material in bulk containers

Country Status (4)

Country Link
EP (1) EP1532059A1 (en)
AU (1) AU2003251285A1 (en)
TR (1) TR200500041T2 (en)
WO (1) WO2004005164A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013113020A1 (en) * 2013-11-25 2015-05-28 Cenk Kadir Bostan Flexible large container with seamless workspace
EP2921428A1 (en) 2014-03-21 2015-09-23 Isbir Sentetik Dokuma Sanayi Anonim Sirketi Transporting bag having conductive property

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB542066A (en) * 1940-01-09 1941-12-23 John Joseph Dowling Means for minimising the risk of explosions in tanks, containers, vessels, and the like
DE8800133U1 (en) * 1988-01-08 1988-02-18 Eurea Verpackungsgesellschaft mbH & Co, 4440 Rheine Cuboid-shaped transport bag for bulk goods and liquids
DE3938414C2 (en) * 1989-08-19 1994-04-14 Eurea Verpackung Bulk goods container made of a woven carrier bag and carrier devices attached to it
GB9010498D0 (en) * 1990-05-10 1990-07-04 Mulox Ibc Ltd Container bag
DE29612225U1 (en) * 1996-07-13 1996-09-12 Eurea Verpackungs GmbH & Co KG, 48432 Rheine Shipping container
DE59806326D1 (en) * 1997-08-13 2003-01-02 Bulk Bag Tec Maschinenhandelsg Transport bag made of fabric and / or foil material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004005164A1 *

Also Published As

Publication number Publication date
TR200500041T2 (en) 2005-10-21
AU2003251285A1 (en) 2004-01-23
WO2004005164A1 (en) 2004-01-15

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