CA2954466A1 - Groundable, flexible bulk material container - Google Patents
Groundable, flexible bulk material container Download PDFInfo
- Publication number
- CA2954466A1 CA2954466A1 CA2954466A CA2954466A CA2954466A1 CA 2954466 A1 CA2954466 A1 CA 2954466A1 CA 2954466 A CA2954466 A CA 2954466A CA 2954466 A CA2954466 A CA 2954466A CA 2954466 A1 CA2954466 A1 CA 2954466A1
- Authority
- CA
- Canada
- Prior art keywords
- conductive
- carrying
- container
- earthable
- surface area
- 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.)
- Abandoned
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]
- B65D88/165—Flexible intermediate bulk containers [FIBC] with electrically conductive properties
-
- 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]
- B65D88/1675—Lifting fittings
- B65D88/1681—Flexible, e.g. loops, or reinforcements therefor
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/441—Yarns or threads with antistatic, conductive or radiation-shielding properties
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/533—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads antistatic; electrically conductive
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The invention relates to a groundable, flexible bulk material container comprising a container made of a flexible material, which has a dischargeable or conductive grid made of conductive threads (5), is alternatively dischargeable or conductive over the entire area, and further comprising at least one carrying loop (2) connected to the container (1) by means of a carrying seam (3), characterized in that at least one carrying loop (2) is equipped with a dischargeable or conductive material in a surface resistance range, measured according to TRBS 2153, from 0.1 to 108 Ohm, at least from the carrying seam (3) to the suspension point (4) over the entire surface.
Description
- Groundable, flexible bulk material container The application relates to an earthable flexible intermediate bulk container.
Earthable flexible intermediate bulk containers, Type C FIBCs, are generally used for avoiding risks of electrostatic ignition in areas where there is a potentially explosive atmosphere or when handling combustible dusts with a high level of ignition sensitivity.
Commercially available Type C FIBCs are sewn-together containers with a carrying strap of a flexible material in which the carrying strap makes it possible for the container to be picked up from above and transported (as shown for example in Figure 1). They are generally made of a polypropylene fabric that is provided with a dissipative or conductive grid of conductive threads.
The connection of the conductive threads to another requires appropriate sewing of the fabric, so that the conductive threads of all the individual parts of the FIBC are in good, adequate contact with one another and with the earthable point, see also TRBS 2153 Annex B and 04-04.
In practice, this connection is not always ensured in all places. In particular there are often problems in the region of the carrying straps, which nowadays are generally made of insulating PP
fabric and are provided with 3 to 8 conductive threads arranged exclusively in parallel, for one reason because not all of the conductive threads are in adequate contact with the earthable point -for example, the threads may be destroyed by the sewing on of the carrying straps - or - since they only rest loosely on the PP fabric of the body of the FIBC ¨ they do not have a proper earth contact.
For another reason because twisting of the carrying straps for example means that adequate contact of the threads with the picking-up equipment - for example a spider clamp -which often serves as an earthing point, is not always ensured.
From the aspect of avoiding risks of electrostatic ignition, earthing of Type C FIBCs is a safety measure that has to meet strict requirements and, as a result of manufacturing defects or operating errors, can lead to accidents (L. G. Britton, "Process Safety Progress", Vol.
12. No. 4. October (1993), 240-250).
FIBCs are therefore additionally provided with one or more earthing jumpers, the location of which is not specific. Nevertheless, inadequately earthed conductive threads can under some circumstances lead to risks of electrostatic ignition. An FIBC that is not earthed leads to strong effectively igniting electrostatic spark discharges.
Earthable flexible intermediate bulk containers, Type C FIBCs, are generally used for avoiding risks of electrostatic ignition in areas where there is a potentially explosive atmosphere or when handling combustible dusts with a high level of ignition sensitivity.
Commercially available Type C FIBCs are sewn-together containers with a carrying strap of a flexible material in which the carrying strap makes it possible for the container to be picked up from above and transported (as shown for example in Figure 1). They are generally made of a polypropylene fabric that is provided with a dissipative or conductive grid of conductive threads.
The connection of the conductive threads to another requires appropriate sewing of the fabric, so that the conductive threads of all the individual parts of the FIBC are in good, adequate contact with one another and with the earthable point, see also TRBS 2153 Annex B and 04-04.
In practice, this connection is not always ensured in all places. In particular there are often problems in the region of the carrying straps, which nowadays are generally made of insulating PP
fabric and are provided with 3 to 8 conductive threads arranged exclusively in parallel, for one reason because not all of the conductive threads are in adequate contact with the earthable point -for example, the threads may be destroyed by the sewing on of the carrying straps - or - since they only rest loosely on the PP fabric of the body of the FIBC ¨ they do not have a proper earth contact.
For another reason because twisting of the carrying straps for example means that adequate contact of the threads with the picking-up equipment - for example a spider clamp -which often serves as an earthing point, is not always ensured.
From the aspect of avoiding risks of electrostatic ignition, earthing of Type C FIBCs is a safety measure that has to meet strict requirements and, as a result of manufacturing defects or operating errors, can lead to accidents (L. G. Britton, "Process Safety Progress", Vol.
12. No. 4. October (1993), 240-250).
FIBCs are therefore additionally provided with one or more earthing jumpers, the location of which is not specific. Nevertheless, inadequately earthed conductive threads can under some circumstances lead to risks of electrostatic ignition. An FIBC that is not earthed leads to strong effectively igniting electrostatic spark discharges.
- 2 -The object was therefore to invent an earthable flexible intermediate bulk container with significantly simplified and improved earthing, without any isolated conductive threads being able to occur any longer in the carrying straps.
The object was achieved according to the invention by at least one carrying strap 2 of the intermediate bulk container being provided over the full surface area, at least from the carrying strap 3 to the suspension point 4, with a dissipative or conductive material in a surface resistance range, measured in accordance with TRBS 2153, of 0.1 to 108 ohms.
The subject matter of the application is therefore an earthable flexible intermediate bulk container comprising:
- a container 1 made of a flexible material, which has a dissipative or conductive grid of conductive threads 5, or alternatively is dissipative or conductive over the full surface area, and - at least one carrying strap 2 connected to the container 1 by means of a carrying seam 3, characterized in that at least one carrying strap 2 is provided over the full surface area, at least from the carrying seam 3 to the suspension point 4, with a dissipative or conductive material in a surface resistance range, measured in accordance with TRBS 2153, of 0.1 to 108 ohms.
For the purposes of the invention, provision over the full surface area means that the carrying strap is continuously dissipative or conductive over its surface area instead of being provided with parallel conductive threads. For the purposes of the invention, therefore, carrying straps are not exclusively provided with conductive threads, a combination of conductive threads and a full surface area that is conductive being possible.
By providing at least one of the carrying straps with a conductive effect over the full surface area in the way according to the invention, these straps can be regarded as intrinsically safe earthable points, and the earthing can then be simply ensured firstly by way of the picking-up equipment - for example the conductive and earthed metal spider clamp or else the metal prongs of a forklift truck (always earthed in areas with potentially explosive atmospheres). Secondly, an earthing clip may also be securely attached to the carrying straps, and there are no longer occasions when the FIBCs are already regarded as unsuitable in the inspection of incoming goods just because of inadequately earthed conductive threads.
The material, usually polypropylene, that is necessary for the load-bearing strength of the straps, usually remains present as before. The conductive effect described can be provided for example by enclosing them in conductive foil or by conductive coating of the carrying straps or the like.
The object was achieved according to the invention by at least one carrying strap 2 of the intermediate bulk container being provided over the full surface area, at least from the carrying strap 3 to the suspension point 4, with a dissipative or conductive material in a surface resistance range, measured in accordance with TRBS 2153, of 0.1 to 108 ohms.
The subject matter of the application is therefore an earthable flexible intermediate bulk container comprising:
- a container 1 made of a flexible material, which has a dissipative or conductive grid of conductive threads 5, or alternatively is dissipative or conductive over the full surface area, and - at least one carrying strap 2 connected to the container 1 by means of a carrying seam 3, characterized in that at least one carrying strap 2 is provided over the full surface area, at least from the carrying seam 3 to the suspension point 4, with a dissipative or conductive material in a surface resistance range, measured in accordance with TRBS 2153, of 0.1 to 108 ohms.
For the purposes of the invention, provision over the full surface area means that the carrying strap is continuously dissipative or conductive over its surface area instead of being provided with parallel conductive threads. For the purposes of the invention, therefore, carrying straps are not exclusively provided with conductive threads, a combination of conductive threads and a full surface area that is conductive being possible.
By providing at least one of the carrying straps with a conductive effect over the full surface area in the way according to the invention, these straps can be regarded as intrinsically safe earthable points, and the earthing can then be simply ensured firstly by way of the picking-up equipment - for example the conductive and earthed metal spider clamp or else the metal prongs of a forklift truck (always earthed in areas with potentially explosive atmospheres). Secondly, an earthing clip may also be securely attached to the carrying straps, and there are no longer occasions when the FIBCs are already regarded as unsuitable in the inspection of incoming goods just because of inadequately earthed conductive threads.
The material, usually polypropylene, that is necessary for the load-bearing strength of the straps, usually remains present as before. The conductive effect described can be provided for example by enclosing them in conductive foil or by conductive coating of the carrying straps or the like.
- 3 - =
For reasons of flexibility/extensibility of the carrying straps, it is sufficient to make 60% to 100 %
of the surface area of a carrying strap conductive, as long as the earthing between the container and the suspension point of the carrying strap is ensured, i.e. the provision of a conductive effect begins on one side of the carrying strap at the carrying seam.
Preferably, all of the carrying straps are provided with a conductive effect over the full surface area.
Should earthing jumpers be desired in the bottom region, an extension of at least one carrying strap in the bottom region can easily be made into an earthing lug. It is then possible to dispense with the additional sewing on of further earthable points, such as for example earthing jumpers.
The carrying straps can then be referred to in the earthing instructions as clearly identified earthable points; in addition, if desired, an earthing symbol could be printed onto the carrying straps provided with a conductive effect.
Fig. 1: Type C FB3C according to the prior art, where:
1 ¨ container 2¨ carrying strap 3 ¨ carrying seam
For reasons of flexibility/extensibility of the carrying straps, it is sufficient to make 60% to 100 %
of the surface area of a carrying strap conductive, as long as the earthing between the container and the suspension point of the carrying strap is ensured, i.e. the provision of a conductive effect begins on one side of the carrying strap at the carrying seam.
Preferably, all of the carrying straps are provided with a conductive effect over the full surface area.
Should earthing jumpers be desired in the bottom region, an extension of at least one carrying strap in the bottom region can easily be made into an earthing lug. It is then possible to dispense with the additional sewing on of further earthable points, such as for example earthing jumpers.
The carrying straps can then be referred to in the earthing instructions as clearly identified earthable points; in addition, if desired, an earthing symbol could be printed onto the carrying straps provided with a conductive effect.
Fig. 1: Type C FB3C according to the prior art, where:
1 ¨ container 2¨ carrying strap 3 ¨ carrying seam
4 ¨ suspension point
5 ¨ dissipative or conductive grid of conductive threads
6 ¨ earthing jumpers
7¨ earthing lead
Claims (3)
1. Earthable flexible intermediate bulk container comprising:
- a container 1 made of a flexible material, which has a dissipative or conductive grid of conductive threads 5, or alternatively is dissipative or conductive over the full surface area, and - at least one carrying strap 2 connected to the container 1 by means of a carrying seam 3, characterized in that at least one carrying strap 2 is provided over the full surface area, at least from the carrying seam 3 to the suspension point 4, with a dissipative or conductive material in a surface resistance range, measured in accordance with TRBS 2153, of 0.1 to 10 8 ohms.
- a container 1 made of a flexible material, which has a dissipative or conductive grid of conductive threads 5, or alternatively is dissipative or conductive over the full surface area, and - at least one carrying strap 2 connected to the container 1 by means of a carrying seam 3, characterized in that at least one carrying strap 2 is provided over the full surface area, at least from the carrying seam 3 to the suspension point 4, with a dissipative or conductive material in a surface resistance range, measured in accordance with TRBS 2153, of 0.1 to 10 8 ohms.
2. Earthable flexible intermediate bulk container, all of the carrying straps being provided with a conductive effect over the full surface area.
3. Earthable flexible intermediate bulk container, at least one carrying strap being made into an earthing lug in the bottom region.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014010273.4 | 2014-07-11 | ||
| DE102014010273.4A DE102014010273A1 (en) | 2014-07-11 | 2014-07-11 | Earthing flexible bulk material container |
| PCT/EP2015/065291 WO2016005302A1 (en) | 2014-07-11 | 2015-07-06 | Groundable, flexible bulk material container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2954466A1 true CA2954466A1 (en) | 2016-01-14 |
Family
ID=53514179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2954466A Abandoned CA2954466A1 (en) | 2014-07-11 | 2015-07-06 | Groundable, flexible bulk material container |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20170197780A1 (en) |
| EP (1) | EP3166873A1 (en) |
| JP (1) | JP2017521330A (en) |
| KR (1) | KR20170031130A (en) |
| CN (1) | CN106715770A (en) |
| CA (1) | CA2954466A1 (en) |
| DE (1) | DE102014010273A1 (en) |
| WO (1) | WO2016005302A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024073317A2 (en) * | 2022-09-27 | 2024-04-04 | Schaefer Plastics North America, Llc | Material handling container with electrostatic discharge protection |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2101559B (en) * | 1981-07-09 | 1985-12-04 | Humber Fabrics Limited | Electrically conductive container |
| 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 |
| DE9108091U1 (en) * | 1991-07-02 | 1991-09-12 | Empac Verpackungs GmbH & Co, 4407 Emsdetten | Fabric with conductive ribbons |
| US5478154A (en) * | 1994-06-01 | 1995-12-26 | Linq Industrial Fabrics, Inc. | Quasi-conductive anti-incendiary flexible intermediate bulk container |
| DE4431046B4 (en) * | 1994-09-01 | 2005-12-29 | Empac Verpackungs-Gmbh | Plastic packaging container with improved electrostatic conductivity |
| DE19617902C1 (en) * | 1996-05-03 | 1997-07-10 | Empac Verpackungs Gmbh | Polymer film liner for bulk material container |
| WO2000075406A1 (en) * | 1999-06-03 | 2000-12-14 | Solutia Inc. | Antistatic yarn, fabric, carpet and fiber blend formed from conductive or quasi-conductive staple fiber |
| DE19930093B4 (en) * | 1999-06-30 | 2005-05-12 | Nordenia Deutschland Emsdetten Gmbh | Flexible bulk material container |
| DE10048765C2 (en) * | 2000-09-29 | 2003-02-20 | Eurea Verpackung | Antistatic fabric for flexible bulk containers |
| AU3948802A (en) * | 2000-10-25 | 2002-06-03 | Intertape Polymer Group | Anti-static woven fabric and flexible bulk container |
| US20070087149A1 (en) * | 2000-10-25 | 2007-04-19 | Trevor Arthurs | Anti-static woven flexible bulk container |
| CN1251944C (en) * | 2001-01-15 | 2006-04-19 | 西巴特殊化学品控股有限公司 | Antistatic flexible intermediate bulk container |
| TR200103444A2 (en) * | 2001-11-28 | 2003-06-23 | Sunj�T@Sun�@J�T@Sanay�@Ve@T�C@A@� | Large sack with multiple thread formation, providing permanent antistatic effect |
| CN2522379Y (en) * | 2001-12-03 | 2002-11-27 | 张大禹 | Anti-static space bag |
| US6900975B2 (en) * | 2002-07-05 | 2005-05-31 | Sunjit Suni Jut Sanayi Ve Tioaret A.S. | Inner device for neutralization of electrostatic charges from material in contact |
| EP1411007B1 (en) * | 2002-10-16 | 2004-08-18 | Ünsa Ambalaj Sanayi ve Ticaret A.S. | Flexible intermediate bulk container |
| DE20220629U1 (en) * | 2002-11-18 | 2003-11-20 | Eurea Verpackungs GmbH & Co KG, 48432 Rheine | Anti-static flexible container for a pourable material, comprises a flexible carrier bag with handles attached which are in the form of loops |
| DE10253836B4 (en) * | 2002-11-18 | 2009-01-15 | Storsack Holding Gmbh | Flexible bulk material container |
| US20050031231A1 (en) * | 2003-08-07 | 2005-02-10 | Eisenbarth Bradley Matthew | Type B bulk bag with liner |
| US20080020161A1 (en) * | 2004-04-01 | 2008-01-24 | Shimon Shacham | Antistatic Dissipative Flexible Intermediate Bulk Container |
| DE102004046579A1 (en) * | 2004-09-23 | 2006-04-06 | Nordenia Deutschland Emsdetten Gmbh | Flexible bulk material container |
| WO2006130637A2 (en) * | 2005-05-31 | 2006-12-07 | Noble Fiber Technologies, Llc | Flexible intermediate bulk container having optimum discharge of hazardous charge |
| CN2918277Y (en) * | 2006-05-01 | 2007-07-04 | 刘建平 | Plastic packaging bag with low static electricity |
| FI20085407L (en) * | 2008-05-05 | 2009-11-06 | Ionphase Oy | Multi-layer packaging |
| CN105307955B (en) * | 2013-03-15 | 2018-02-13 | 特克斯恩有限责任公司 | Flexible medium-sized containers with sensing control |
| WO2015015085A2 (en) * | 2013-08-02 | 2015-02-05 | Roquette Freres | Flexible storage device comprising a flexible container, and an inner liner |
| EP2921428A1 (en) * | 2014-03-21 | 2015-09-23 | Isbir Sentetik Dokuma Sanayi Anonim Sirketi | Transporting bag having conductive property |
| JP2017532257A (en) * | 2014-07-21 | 2017-11-02 | グッドウィン ピーエルシーＧｏｏｄｗｉｎ Ｐｌｃ | Refractory container |
-
2014
- 2014-07-11 DE DE102014010273.4A patent/DE102014010273A1/en not_active Withdrawn
-
2015
- 2015-07-06 EP EP15734359.1A patent/EP3166873A1/en not_active Withdrawn
- 2015-07-06 US US15/324,342 patent/US20170197780A1/en not_active Abandoned
- 2015-07-06 CA CA2954466A patent/CA2954466A1/en not_active Abandoned
- 2015-07-06 CN CN201580037704.9A patent/CN106715770A/en active Pending
- 2015-07-06 WO PCT/EP2015/065291 patent/WO2016005302A1/en active Application Filing
- 2015-07-06 KR KR1020177000440A patent/KR20170031130A/en unknown
- 2015-07-06 JP JP2017501324A patent/JP2017521330A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017521330A (en) | 2017-08-03 |
| DE102014010273A1 (en) | 2016-01-14 |
| KR20170031130A (en) | 2017-03-20 |
| CN106715770A (en) | 2017-05-24 |
| US20170197780A1 (en) | 2017-07-13 |
| EP3166873A1 (en) | 2017-05-17 |
| WO2016005302A1 (en) | 2016-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |
Effective date: 20190708 |