EP0264519B1 - Kreuz- oder Klotzbodenventilsack - Google Patents

Kreuz- oder Klotzbodenventilsack Download PDF

Info

Publication number
EP0264519B1
EP0264519B1 EP87100088A EP87100088A EP0264519B1 EP 0264519 B1 EP0264519 B1 EP 0264519B1 EP 87100088 A EP87100088 A EP 87100088A EP 87100088 A EP87100088 A EP 87100088A EP 0264519 B1 EP0264519 B1 EP 0264519B1
Authority
EP
European Patent Office
Prior art keywords
bag
valve
lip
valve tube
interior
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
EP87100088A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0264519A3 (en
EP0264519A2 (de
Inventor
Alois Gröner
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.)
Bischof and Klein SE and Co KG
Original Assignee
Bischof and Klein SE 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 Bischof and Klein SE and Co KG filed Critical Bischof and Klein SE and Co KG
Priority to AT87100088T priority Critical patent/ATE63518T1/de
Publication of EP0264519A2 publication Critical patent/EP0264519A2/de
Publication of EP0264519A3 publication Critical patent/EP0264519A3/de
Application granted granted Critical
Publication of EP0264519B1 publication Critical patent/EP0264519B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/14—Valve bags, i.e. with valves for filling
    • B65D31/142—Valve bags, i.e. with valves for filling the filling port being formed by folding a flap connected to a side, e.g. block bottoms

Definitions

  • the invention relates to a cross or block bottom valve sack made of paper or the like.
  • Foldable material with a sack bottom incorporated into one of its two sack bottoms laterally delimited by bottom side fold lines in the area of a valve-forming corner wrap, which at its end facing the inside of the sack is flexible on one side by a shut-off lip Material of at least valve hose width is protruded, which can be moved automatically into a blocking position sealing the inner valve hose opening under the pressure of the filling material filled into the sack interior.
  • DE-U 8 534 301.1 describes a known cross or block bottom valve sack of this type, in which the filling valve with its valve tube is formed from a paper blank which is glued into the bottom of the sack over the valve-forming corner wrap. In the area between the bottom side fold lines of the sack bottom, there is no adhesive applied between the valve-forming corner fold and a lower cover part of the paper blank, so that the corner fold is freely spanned by the paper blank with a transverse dimension corresponding to the width of the bottom to form the valve tube.
  • the shut-off rib made of flexible material is formed on the top of the valve tube and is solely responsible for shutting off the inner opening of the valve tube under the pressure of the filled product when the filling process is complete.
  • valve hose with an inner layer which can be converted from a normally non-adhesive state for a tight closure of the valve hose into an adhesive or sealable state.
  • non-adhesive state of the inner layer of the valve hose such sacks can easily be pushed onto the filling nozzle of an automatic filling machine in order to be filled with pourable or pourable filling material.
  • the inner layer of the valve hose is to be converted into an adhesive state, so that the valve hose can be glued together flat under pressure and thus forms a dust-tight seal of the valve channel defined by the valve hose.
  • the inner layer of the valve hose can be designed as a thermoplastic inner coating on a paper layer forming the valve hose, wherein it is reactivated by supplying heat, for example by means of a hot air blower, i.e. H. can be converted into an adhesive or sealable state.
  • a hot air blower i.e. H.
  • valve channel closure cannot be properly carried out due to internal contamination of the valve hose with residues. This is primarily due to the fact that when the filled sack is ejected from the filling machine and when the sack is positioned in the device for closing the valve hose, small quantities of filling material can trickle out of the sack interior or get into the valve channel. Here they then prevent the two halves of the valve tube from flattening under pressure after the inner layer has been reactivated.
  • the invention has for its object to provide a cross or block bottom valve sack, in which the penetration of contents into the valve hose is safely avoided after the filling process, so one to be able to produce a proper, dust-tight closure of the valve hose by reactivating an inner layer.
  • this object is achieved according to the invention in that the filling valve is formed by a valve tube with an inner layer, which from a normally non-adhesive state for a tight closure of the valve tube into an adhesive or sealable Condition is transferable, and that the shut-off lip projecting over the valve hose on its underside toward the inside of the sack is itself overhanged by a separate sealing lip, which is formed by an end part of a sealing material blank that extends freely into the inside of the sack and that is wider than the bottom width, which is outside the bottom side fold lines lying partial areas is fixed at the edge by connection with the bottom side envelopes.
  • the shut-off rib can be formed by an end part which projects freely into the inside of the sack and has an insert sheet with a lower area on the valve-forming corner insert and in an upper area supporting the valve tube and having a width which exceeds the sack bottom width and which lies outside the bottom side fold lines lower sub-areas is fixed at the edge by connection with the bottom side envelopes.
  • the position of the shut-off lip like that of the sealing lip, is in relation to the opening of the valve hose opening into the interior of the sack defined, and there is a correspondingly predetermined movement of the shut-off and sealing lip against the inner valve hose opening under the pressure of the inserted filling material in order to prevent the filling material from trickling out.
  • shut-off lip and the sealing lip all suitable soft, pliable materials are considered, such as in particular plastic films, thin paper, nonwoven fabric and the like.
  • the sealing lip be made of a material that is more flexible than that of the shut-off lip, e.g. B. from a thin plastic film, then the shut-off lip is advantageously made of a somewhat stiffer material, eg. B. paper is formed.
  • the configuration according to the invention not only enables transverse dimensions of the valve tube corresponding to the base width, but also allows smaller transverse dimensions of the valve tube to be adapted without further ado to adapt the valve channel to the predetermined diameter of the filling nozzle of the automatic filling machines of the packaging company.
  • a three-layer cross-bottom valve sack made of paper is shown, in its place a cross-bottom valve sack made of one or two material layers or in an otherwise suitable number of layers can also occur.
  • material layers made entirely of paper paper-encompassing material layers, e.g. B. with plastic and / or metal foils laminated paper, or intermediate layers of metal, plastic foils and the like. Materials are used.
  • the material sides or layers consisting of paper are preferably used, which allow the use of starch-based adhesives customary in paper bag production.
  • a block bottom sack can be used instead of a cross bottom sack, which differs from a cross bottom sack by the inserted side folds and the rectangular bottoms already in the unfilled state of the sack.
  • Plastic films are also considered as the bag material alone.
  • FIG. 2 which shows the bottom of the cross in the still open, ie not yet finished, closed state
  • the bottom middle fold line is designated by 1
  • the two bottom side fold lines at 2 and 3 are each shown in dash-dot lines.
  • the two bottom envelopes of the open cross base are designated 4 and 5 and the two corner folds with 6 and 7.
  • the three material layers arranged concentrically to one another are designated 8, 9 and 10 and are staggered at the ends in a manner known per se, the material layers also being provided with incisions for extending the bottom side envelopes 4 and 5 in the longitudinal direction of the bottom.
  • the corner insert 7 is the valve-forming corner insert, onto which an insert sheet 12 made of paper is glued to produce a filling valve by means of an adhesive application 11 (FIG. 1).
  • the insert sheet 12 has an envelope with the fold edge 13 directed towards the outside of the bag, the lower envelope part 14 being glued onto the corner wrap 7 by means of the adhesive application 11.
  • the width of the insert sheet 12 exceeds the width of the finished sack bottom, which is defined by the transverse dimension between the bottom side fold lines 2 and 3.
  • the cover part 14 is connected to the bottom side envelopes 4 and 5 by adhesive layers 15 (FIG. 2) and thus fixed on the edge side.
  • valve tube 18 is glued by means of an adhesive application 17 (FIG. 1), the width or transverse dimension of which is smaller than the width of the sack bottom, as is particularly shown in FIG. 2 to 4 show.
  • the valve hose 18 consists of a paper layer which is formed into a hose by means of a longitudinal seam 19 and has an inner coating made of a thermoplastic material which is normally, i. H. is particularly ineffective at room temperature, but can be converted into an adhesive or sealable state by supplying hot air, in order to close the valve tube 18 flatly with a flat compression.
  • the width of the valve hose 18 is selected in accordance with the predetermined diameter of the filling nozzle of a filling machine.
  • the upper envelope part 16 extends beyond the inner edge 20 of the corner wrap 7 to the interior of the sack and also projects a short distance beyond the valve tube 18 at its end facing the interior of the sack Section of about 15 to 20 mm in length.
  • the valve tube 18 projecting toward the inside of the bag portion of the upper envelope part 16 forms a shut-off lip 21, which under the pressure of the filling material filled into the sack can be moved automatically into a blocking position sealing the inner opening of the valve tube 18.
  • a sealing lip 24 is provided which projects beyond the shut-off lip 21 towards the inside of the bag.
  • the sealing lip 24 is formed by an end part of a blank 25, for example plastic film, which projects freely into the sack interior and whose width exceeds the base width.
  • the blank 25 In its partial areas lying outside the bottom side fold lines 2 and 3, the blank 25 is glued to the bottom side envelopes 4 and 5 with the aid of adhesive applications 26 (FIG. 2) and thus, like the insert sheet 12, is fixed at the edge.
  • the blank 25 is loosely framed with its end part facing the bag, provided with an envelope, in the envelope of the insert sheet 12, ie there are no adhesive connections between the blank 25 and the insert sheet 12 in the area of the base width.
  • the upper or main part 27 of the blank 25 forms with the upper cover part 16 of the insert sheet 12 a pocket 28 which opens out towards the inside of the sack and which, like the pocket 22, can be widened by penetrating filling material in such a way that the contact movement of the shut-off lip 21 counteracts the inner valve hose opening is additionally supported.
  • the system movement is both the shut-off lip 21 and the sealing lip 24 against the inner valve hose opening.
  • FIG. 1 shows a bottom cover sheet 29 glued to the finished, closed cross bottom on the outside with an envelope 30 on the valve corner, which covers and reinforces the outside area of the valve and in particular of the valve hose 18.
  • FIG. 4 also shows a hot air blower 31 of a device for closing the filled sacks. From the mouthpiece 32 of the hot air blower 31, hot air jets are directed onto the inner coating of the slightly open valve hose 18 in order to convert its inner coating into the adhesive or sealable state, so that the inner valve channel defined by the valve hose 18 is closed in a dust-tight manner with the valve hose 18 compressed flat can be.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Basic Packing Technique (AREA)
  • Revetment (AREA)
  • Pens And Brushes (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP87100088A 1986-10-24 1987-01-07 Kreuz- oder Klotzbodenventilsack Expired - Lifetime EP0264519B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87100088T ATE63518T1 (de) 1986-10-24 1987-01-07 Kreuz- oder klotzbodenventilsack.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8628387U DE8628387U1 (de) 1986-10-24 1986-10-24 Kreuz- oder Klotzbodenventilsack
DE8628387U 1986-10-24

Publications (3)

Publication Number Publication Date
EP0264519A2 EP0264519A2 (de) 1988-04-27
EP0264519A3 EP0264519A3 (en) 1989-03-15
EP0264519B1 true EP0264519B1 (de) 1991-05-15

Family

ID=6799546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100088A Expired - Lifetime EP0264519B1 (de) 1986-10-24 1987-01-07 Kreuz- oder Klotzbodenventilsack

Country Status (6)

Country Link
US (1) US4759640A (fi)
EP (1) EP0264519B1 (fi)
AT (1) ATE63518T1 (fi)
CA (1) CA1264463A (fi)
DE (2) DE8628387U1 (fi)
ES (1) ES2022816B3 (fi)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8811184U1 (de) * 1988-09-05 1988-11-10 Bischof Und Klein Gmbh & Co, 4540 Lengerich Kreuz- oder Klotzbodenventilsack
US5516210A (en) * 1994-05-10 1996-05-14 Stone Container Corporation Self-closing sealable valve bag
US5806982A (en) * 1994-05-10 1998-09-15 Stone Container Corporation Self-closing sealable valve bag
DE19544072A1 (de) * 1995-11-25 1997-05-28 Herkules Verpackung Ventilsack
US5967664A (en) * 1996-05-07 1999-10-19 Stone Container Corporation Sift proof valve bag
US6126316A (en) * 1996-09-05 2000-10-03 Bemis Company, Inc. Automatic self-closing valve closure assembly for valve bags
US6013018A (en) * 1996-09-05 2000-01-11 Bemis Company, Inc. Sonic valve closure assembly for valve bags
FI109290B (fi) * 1997-03-18 2002-06-28 Upm Kymmene Oy Venttiilisäkki
US6164823A (en) * 1998-12-07 2000-12-26 Southern Bag Corporation, Ltd. Valve bag and method for making a valve bag
US6074095A (en) * 1999-02-16 2000-06-13 Bemis Company, Inc. Four member valve closure assembly for valve bags
US6499879B2 (en) 2001-05-02 2002-12-31 Hood Packaging Corporation Sealable valve bag and method for making a sealable valve bag
US6932508B2 (en) * 2002-12-20 2005-08-23 Smurfit-Stone Container Enterprises, Inc. Positive valve closure for plastic-lined bags and method for making same
DE202006018230U1 (de) * 2006-11-30 2008-04-10 Stabilo International Gmbh Stift
US8142077B2 (en) * 2008-04-16 2012-03-27 Graphic Packaging International, Inc. Bag structures and methods of assembling the same
US20100008603A1 (en) * 2008-07-09 2010-01-14 Julie Rossing Smith Sealable repulpable valve bag and method of assembling
WO2014078340A1 (en) * 2012-11-14 2014-05-22 Graphic Packaging International, Inc. Sift-resistant bag
DE202013006198U1 (de) * 2013-07-09 2014-10-13 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Ventilsack
NO2768978T3 (fi) * 2014-02-20 2018-04-21
CN106043924A (zh) * 2016-07-19 2016-10-26 河南佰嘉新型节能材料有限公司 一种防漏阀口及含有该阀口的包装袋及其制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH138826A (de) * 1929-05-14 1930-03-31 Sautter Wilhelm Mit Druckwasser betriebene Zapfanlage für Flüssigkeiten, welche leichter als Wasser und mit diesem nicht mischbar sind.
US3081930A (en) * 1957-10-17 1963-03-19 Paper Sacks Ltd Bag opening device
NL274369A (fi) * 1961-02-07
DE1260958B (de) * 1964-02-04 1968-02-08 Windmoeller & Hoelscher Kreuzboden-Ventilsack aus Papier sowie Verfahren zum Herstellen und Befestigen seiner Ventileinlage
DE1436838A1 (de) * 1965-11-02 1969-07-10 Sessbruegger & Van Delden Papi Schlauchfoermige Ventileinlage fuer Ventilsaecke
US4049191A (en) * 1976-02-02 1977-09-20 Great Plains Bag Corporation Block bottom valve bag
US4095736A (en) * 1976-10-22 1978-06-20 International Paper Company Bag closure having valve sleeve
DE2935971C2 (de) * 1979-09-06 1985-08-01 Bischof Und Klein Gmbh & Co, 4540 Lengerich Kreuz- oder Klotzbodenventilsack aus Papier oder Papier umfassendem Werkstoff
ATE53979T1 (de) * 1984-12-05 1990-07-15 Svd Verpackungen Gmbh Mehrlagiger seitenfaltenventilsack aus papier.
DE8534301U1 (de) * 1985-12-06 1986-01-23 Bischof Und Klein Gmbh & Co, 4540 Lengerich Kreuz- oder Klotzbodenventilsack

Also Published As

Publication number Publication date
ATE63518T1 (de) 1991-06-15
ES2022816B3 (es) 1991-12-16
CA1264463A (en) 1990-01-16
DE3770111D1 (de) 1991-06-20
EP0264519A3 (en) 1989-03-15
US4759640A (en) 1988-07-26
EP0264519A2 (de) 1988-04-27
DE8628387U1 (de) 1986-12-04

Similar Documents

Publication Publication Date Title
EP0264519B1 (de) Kreuz- oder Klotzbodenventilsack
EP0357835B1 (de) Kreuz- oder Klotzbodenventilsack
DE102016012300A1 (de) Zigarettenpackung sowie Verfahren und Vorrichtung zum Herstellen derselben
DE2935971C2 (de) Kreuz- oder Klotzbodenventilsack aus Papier oder Papier umfassendem Werkstoff
EP0767105A1 (de) Entlüftbarer Kreuzboden-Ventilsack
EP0498047B1 (de) Kreuz- oder Klotzbodenventilsack
DE3203187A1 (de) Fuell-ventil fuer einen ventil-sack
DE818898C (de) Ventilsack oder -beutel mit schlauchfoermigem Einsatz
DE4021801A1 (de) Sack oder beutel mit im gefuellten zustand rechteckigem boden und angeklebtem griffteil
DE202015006392U1 (de) Ventilsack
DE966678C (de) Kreuzbodenventilsack und Vorrichtung zum Herstellen und zum Einbringen einer Ventileinlage
DE4140213A1 (de) Ventilsack mit entlueftungsventil
DE2832256C2 (fi)
EP0815024B1 (de) Kreuz- oder klotzbodenventilsack
DE3414199A1 (de) Kunststoff- oder mit kunststoff innenbeschichteter ventilsack mit einem ventilschlauch
DE1802854B2 (de) Mehrlagiger Ventilsack
DE2006146C3 (de) Mehrlagiger Ventilsack
DE19544072A1 (de) Ventilsack
DE1008100B (de) Kreuzbodenventilsack oder Kreuzbodenventilbeutel aus Papier oder aus einem aehnlichen Werkstoff mit einem Ventilschlauch
DE2048222C2 (de) Mehrlagiger Kreuzbodensack
DE7735643U1 (de) Kreuzbodenventilsack aus faltbarem Werkstoff
DE1536089C (de) Kreuzbodenventilsack
DE2334936C3 (de) Mehrlagiger Ventilsack mit mehreren PapferauBenlagen und einer Kunststoffolien-Innenlage
DE1201745B (de) Klotzbodenbeutel aus einem Schlauch aus flexiblem Blattmaterial
AT206351B (de) Ventilsack aus Papier od. dgl.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

ITCL It: translation for ep claims filed

Representative=s name: BARZANO' E ZANARDO MILANO S.P.A.

TCNL Nl: translation of patent claims filed
GBC Gb: translation of claims filed (gb section 78(7)/1977)
EL Fr: translation of claims filed
PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19890426

17Q First examination report despatched

Effective date: 19891109

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 63518

Country of ref document: AT

Date of ref document: 19910615

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

REF Corresponds to:

Ref document number: 3770111

Country of ref document: DE

Date of ref document: 19910620

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 87100088.1

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20041215

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20060106

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20060110

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20060123

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20060124

Year of fee payment: 20

Ref country code: DE

Payment date: 20060124

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20060125

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20060130

Year of fee payment: 20

Ref country code: NL

Payment date: 20060130

Year of fee payment: 20

Ref country code: CH

Payment date: 20060130

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060131

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20070106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20070107

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20070108

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20070107

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20070108

BE20 Be: patent expired

Owner name: *BISCHOF UND KLEIN G.M.B.H. & CO.

Effective date: 20070107