EP0625951B1 - Schüttgutbehälter - Google Patents

Schüttgutbehälter Download PDF

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Publication number
EP0625951B1
EP0625951B1 EP94903804A EP94903804A EP0625951B1 EP 0625951 B1 EP0625951 B1 EP 0625951B1 EP 94903804 A EP94903804 A EP 94903804A EP 94903804 A EP94903804 A EP 94903804A EP 0625951 B1 EP0625951 B1 EP 0625951B1
Authority
EP
European Patent Office
Prior art keywords
bulk container
indicator
fabric
indicator element
woven fabric
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.)
Expired - Lifetime
Application number
EP94903804A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0625951A1 (de
Inventor
Egon Wurr
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.)
Eurea Verpackungs GmbH and Co KG
Original Assignee
Eurea Verpackungs GmbH and Co KG
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
Application filed by Eurea Verpackungs GmbH and Co KG filed Critical Eurea Verpackungs GmbH and Co KG
Publication of EP0625951A1 publication Critical patent/EP0625951A1/de
Application granted granted Critical
Publication of EP0625951B1 publication Critical patent/EP0625951B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a bulk container, in particular a flexible bulk container (FIBC), which is essentially made from a fabric of high-strength plastic threads or tapes (see e.g. DE-A-3 204 758).
  • FIBC flexible bulk container
  • Bulk goods containers of the type described are used for a wide variety of bulk goods. For example, they are made from polypropylene ribbon fabric. Other olefins or mixed olefin polymers are also used.
  • Polyolefins are susceptible to the UV component of sunlight.
  • the plastic changes due to the sun's UV radiation; the fabric gradually loses strength and can tear under normal use. If such a bulk container with a reduced strength is lifted, the tissue tears and the container empties. It has also happened that the loops come loose from the fabric and the bulk container falls from the lifting device. If such damage occurs, it is often very difficult to determine whether the damage was caused by overloading or material degradation due to UV radiation. The question of whether the damage is only caused by UV radiation remains open was influenced or whether chemical reactions of the bulk material have caused a change in the tissue.
  • the invention has for its object to make a load of the type mentioned its stress by light, in particular UV radiation, easy and safe to determine, so as to make the most accurate statement as to what amount of radiation has acted.
  • the global radiation encompasses the wavelength range from approximately 290-1400 nm, the proportion of long-wave radiation in the IR region (780-1400 nm) is approximately 53%, the visible region (400-780 nm) provides approximately 43% and the UV component (290 - 400 nm) only about 4 - 6% of the total global radiation.
  • the radiation energy is measured using a pyrheliometer. The energy is given in joules. In practice, however, the Langley unit is still widely used, particularly in Kilo-Langley.
  • 1 kilo-Langley - kLy - corresponds to solar radiation of 1 kCal / cm 2 .
  • the intensity is generally given in kLy per year.
  • Weather maps show that e.g. B. In Central Europe there is sunshine of about 1000 kLy per year. In areas of America and Africa, over 220 kLy are measured annually.
  • the bulk container carries at least one indicator element at a point which is exposed to the sun, and that the indicator element experiences reproducibly visible or measurable property changes in accordance with the solar radiation acting on the tissue.
  • the indicator element can be a fabric, a film, a nonwoven or a layer which, in the case of defined solar radiation, has at least one of its physical properties, e.g. B. changes its strength or color, measurable and reproducible.
  • small flags made of polyethylene with white pigment e.g. B. TiO 2 and used as an indicator element.
  • the service life of such indicator elements can be determined empirically by laboratory tests, so that after a certain time of irradiation, simple strain measurements can be used to determine what stability the indicator element still has after a certain time of use.
  • the indicator elements used can therefore provide information about the intensity of radiation which has already acted on the bag, so that a decision can be made immediately on the spot for the further usability or the further use of the bulk goods container.
  • indicator elements into the tissue, with particular reference being made to indicator elements that become characteristic over time discolor.
  • Dyes are known which cause discoloration or discoloration due to solar radiation and can therefore also be used as cumulative measurement indicators.
  • the fabric yarn of the bulk goods container is usually equipped with suitable UV stabilizers or UV absorbers, which are used as light stabilizers both to improve the light resistance and as sun protection agents.
  • suitable UV stabilizers or UV absorbers which are used as light stabilizers both to improve the light resistance and as sun protection agents.
  • chemotechnical options here cf. article UV absorber in R ⁇ MPP, chemical lexicon), some of which are also used in mixed form and in many cases are manufacturing secrets.
  • a color indicator can e.g. B. be partially introduced in a white tissue.
  • the amount of accumulated solar radiation can be determined with a used FIBC if an indicator is available.
  • indicator elements that are combined with characteristic threads to provide a certain stability To indicate solar radiation, for example 50 kLy yellow tracer 75 kLy green tracer 100 kLy red tracer 150 kLy black tracer.
  • a woven-in indicator thread or a corresponding ribbon has the advantage that it cannot be subsequently shot into a tissue, so that an existing indicator element indicates the condition of the tissue.
  • the points are equipped with an indicator that are both most exposed to the sun's rays and can be subjected to the greatest loads. This gives you a statement that is of the greatest importance for practical use.
  • the indicator element indicates that a certain residual strength of the original strength is still present in the fabric, in the carrying straps or in the sewing thread after a certain amount of sunlight.
  • the fabric is made of plastic threads as polyolefins, since these plastics enable an inexpensive and relatively inexpensive fabric.
  • the plastic threads can also be electrical conductive threads are woven. This safely discharges charges when filling, transporting and emptying the bulk container.
  • These conductive threads advantageously consist of polypropylene in the basic substance and can be produced, for example, according to EP 298 767 A3. Because both the non-conductive and the conductive threads of the fabric are made of the same basic substance, the indicator element essentially indicates the condition of the entire fabric used.
  • an indicator for the detection of UV-B radiation is known (DE 92 05 575 U1). It consists of a receptor made of phototropic material and a filter that is selectively transparent to electromagnetic radiation with a wavelength of 280 nm to 315 nm and above about 500 nm. The filter is placed over the material.
  • this indicator embodiment cannot be used for the purpose at hand.
  • a bulk container 1 a so-called FIBC, is shown. It consists of a carrying bag 5, which is provided with lifting loops 7 and 7 'at the top. In its lid area 10, the carrier bag 5 has a filler neck 8, in its bottom area 11 an outlet 9.
  • the carrier bag is made from a fabric 2 made of high-strength plastic threads 3, in which electrically conductive threads 3 'are woven in.
  • the fabric is interspersed with a grid of intersecting, electrically conductive threads, via which, with appropriate grounding, the static electricity generated when using the bulk material containers, primarily when filling or emptying, can be dissipated.
  • This bulk goods container 1 is exposed to the sun's radiation, which is measured in kLy.
  • the threads of the fabric 2 are usually equipped with suitable UV stabilizers. This results in a UV resistance of 150 kLy until the strength has dropped to 50% of the original value.
  • the outlet nozzle 9, the inlet nozzle 8 and the lid area 10 a UV resistance of 80 kLy is common and required.
  • indicator elements 4, 4 'or 4 are attached to important informative points on the bulk goods container.
  • An indicator element 4 is preferably attached in the collar area. It is also possible to use indicator elements 4 ', 4 "in the lid area or on the lifting loops 7 and 7' and on the side surfaces 12 and 12 '.
  • the indicator elements 4, 4 'and 4 can be designed as color change indicators or as flags sewn on both ends, which can easily be cut for examination.
  • color indicator elements in the form of ribbons or threads can also be woven into the container fabric, whereby they are easily recognizable within an otherwise white fabric (reference number 40).
  • the fabric 2 itself as can be seen in particular from FIG. 2, consists of UV-resistant plastic threads 3, into which conductive (dark) threads 3 'are woven at certain intervals.
  • Indicator elements 40 in the form of colored threads can also be seen.
  • the indicator elements 4, 4 'and 4 "or 40 can provide information about the solar radiation that has occurred through a change or color reaction, since at least one of their physical properties, for example their strength or color, has changed in a measurable and reproducible manner .
  • FIBC "second hand" FIBC cannot be seen which UV radiation has affected it.
  • the user and buyer of the container should be informed in good time when replacement of the container is necessary.
  • the indicator ensures that not only the pure time factor plays a role, but also the radiation as the main element that causes aging. Therefore, a container can usually be used longer than before because it is not taken out of service prematurely for safety reasons.
  • improper filling conditions for example with non-approved filling goods in the event of damage, can be attributed to the behavior of the transporter, since the indicator elements indicate that solar radiation which has caused damage has not hitherto been observed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Woven Fabrics (AREA)
  • Wrappers (AREA)
  • Packages (AREA)
  • De-Stacking Of Articles (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Artificial Filaments (AREA)
  • Glass Compositions (AREA)
  • Bag Frames (AREA)
  • Nonwoven Fabrics (AREA)
EP94903804A 1992-12-17 1993-12-16 Schüttgutbehälter Expired - Lifetime EP0625951B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9217248U 1992-12-17
DE9217248U DE9217248U1 (de) 1992-12-17 1992-12-17 Schüttgutbehälter
PCT/EP1993/003575 WO1994013559A1 (de) 1992-12-17 1993-12-16 Schüttgutbehälter

Publications (2)

Publication Number Publication Date
EP0625951A1 EP0625951A1 (de) 1994-11-30
EP0625951B1 true EP0625951B1 (de) 1997-03-19

Family

ID=6887255

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94903804A Expired - Lifetime EP0625951B1 (de) 1992-12-17 1993-12-16 Schüttgutbehälter

Country Status (7)

Country Link
EP (1) EP0625951B1 (fi)
AT (1) ATE150416T1 (fi)
DE (2) DE9217248U1 (fi)
DK (1) DK0625951T3 (fi)
ES (1) ES2101497T3 (fi)
NO (1) NO943013L (fi)
WO (1) WO1994013559A1 (fi)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10272639B2 (en) 2015-03-23 2019-04-30 Emd Millipore Corporation Abrasion resistant film for biocontainers

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9303709D0 (en) * 1993-02-24 1993-04-14 Some Guys Ltd Flexible containers-safety improvement
US5474111A (en) * 1993-10-22 1995-12-12 Degussa Corporation Fine particle handling
EP0761566B1 (en) * 1995-09-12 2001-04-11 Degussa-Hüls Aktiengesellschaft Method and apparatus for dispensing particles from a container
DE19715230A1 (de) * 1997-04-12 1998-10-15 Peter Dipl Ing Dinter Flexibler Schüttgutbehälter mit Indikatoren zum Nachweis von Materialschädigungen durch UV-Strahlen
DE19847059C2 (de) * 1998-10-13 2001-05-17 Eurea Verpackungsgmbh & Co Kg Flexibler Transportbehälter
DE10041832B4 (de) * 2000-08-25 2014-07-24 Flexsabo Silo- Und Anlagenbau Gmbh Silo oder Behälter unter Verwendung von biegeschlaffem Wandmaterial
EP1510474A1 (en) 2003-08-27 2005-03-02 Gunner Schroll A flexible bag for containing bulk material

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3204758C2 (de) * 1982-02-11 1985-10-24 Adolf 6960 Osterburken Lesk Behälter aus Kunststoffgewebe
DE3938414C2 (de) * 1989-08-19 1994-04-14 Eurea Verpackung Schüttgutbehälter aus einem gewebten Tragbeutel und daran befestigten Tragvorrichtungen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10272639B2 (en) 2015-03-23 2019-04-30 Emd Millipore Corporation Abrasion resistant film for biocontainers
US10675836B2 (en) 2015-03-23 2020-06-09 Emd Millipore Corporation Abrasion resistant film for biocontainers
US11110684B2 (en) 2015-03-23 2021-09-07 Emd Millipore Corporation Abrasion resistant film for biocontainers

Also Published As

Publication number Publication date
NO943013D0 (no) 1994-08-15
DE9217248U1 (de) 1993-02-25
EP0625951A1 (de) 1994-11-30
ATE150416T1 (de) 1997-04-15
NO943013L (no) 1994-08-15
ES2101497T3 (es) 1997-07-01
DK0625951T3 (da) 1997-10-06
DE59305880D1 (de) 1997-04-24
WO1994013559A1 (de) 1994-06-23

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