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EP0671337B1 - Procédé de fabrication d'une enveloppe ou d'un sac d'envoi - Google Patents

Procédé de fabrication d'une enveloppe ou d'un sac d'envoi Download PDF

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Publication number
EP0671337B1
EP0671337B1 EP95100356A EP95100356A EP0671337B1 EP 0671337 B1 EP0671337 B1 EP 0671337B1 EP 95100356 A EP95100356 A EP 95100356A EP 95100356 A EP95100356 A EP 95100356A EP 0671337 B1 EP0671337 B1 EP 0671337B1
Authority
EP
European Patent Office
Prior art keywords
thread
envelope
tear
paper web
tear thread
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
EP95100356A
Other languages
German (de)
English (en)
Other versions
EP0671337A1 (fr
Inventor
Hans Weber
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.)
Rossler Papier & Cokg GmbH
Original Assignee
Rossler Papier & Cokg GmbH
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 Rossler Papier & Cokg GmbH filed Critical Rossler Papier & Cokg GmbH
Priority to IL11285295A priority Critical patent/IL112852A0/xx
Priority to CA002144233A priority patent/CA2144233A1/fr
Priority to JP7048630A priority patent/JP2619617B2/ja
Publication of EP0671337A1 publication Critical patent/EP0671337A1/fr
Application granted granted Critical
Publication of EP0671337B1 publication Critical patent/EP0671337B1/fr
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
    • B65D27/00—Envelopes or like essentially-rectangular containers for postal or other purposes having no structural provision for thickness of contents
    • B65D27/32—Opening devices incorporated during envelope manufacture
    • B65D27/38—Tearing-strings or -strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings

Definitions

  • the invention relates to a method for producing an envelope or a mailing bag or the like with an inserted tear thread, the tear thread being arranged in the course of production on a fold edge different from a folded edge of a closure flap before the envelope is finished folding.
  • Envelopes in the form of envelopes of the type mentioned in the preamble of claim 1 are already known from FR-A-2 420 487.
  • the thread is inserted piece by piece and it is from FR-A-2 420 487 not recognizable how the insertion of such a thread should take place during production.
  • the invention is intended to propose a method for producing such an envelope.
  • the guiding of the thread along the side edge allows the thread to be continuously placed and unwound with the course of the endless paper tape, so that the thread is easily placed on top and cut with knives for trimming the side edges and glued in the folded edge of the still flat blank, so that during the further folding of the blank to the finished envelope no other special measures bez. this thread must be taken, but the thread can rather be completely ignored.
  • a tear thread that is arranged along the side edge, that is to say a side folding edge of the blank and glued there without an overhang, cannot be torn off from the outside. By tearing off a smaller upper corner on the side edge of the envelope or at any other corner where the thread ends, the thread can be gripped and pulled off in the lateral direction and the envelope can thus be opened.
  • the thread can thus be introduced economically, so that the envelope is economically restored can be. It is no longer possible to tear off protruding thread ends because no thread ends protrude. Accordingly, an envelope cannot be opened unintentionally via the protruding thread end which is glued to the envelope at its free end.
  • the thread is arranged in a side folding edge of the blank.
  • This fold edge of a side flap is the fold edge running in the machine direction. Positioning straight in this edge enables the insertion of an endless thread during the envelope production.
  • the tear thread is provided with adhesive that sticks under pressure and / or supply of heat, it is possible to dispense with appropriate gluing or gumming of the envelope itself or of the blank before the thread is applied.
  • the adhesive is always where the thread is and there are no positioning problems between an adhesive strip and a thread. It can also no longer happen with this form of gluing that the tear thread, which is only glued to a single point at its end, detaches from its gluing at the start of the tear-open process, so that it can simply be pulled out and an opening by means of this Thread is no longer possible.
  • so-called hot-melt strips that stick by applying heat or self-adhesive strips that stick to the paper web by pressing are to be mentioned.
  • the laying on and gluing and the transport can take place without any impairment of the normal transport speed of the paper web.
  • the general work of the known machine is in no way disturbed.
  • the shape of the side edges is trimmed z. B. by means of a rotary knife, which is also known per se and therefore does not require any further description in its function and shape.
  • the Rotary knife not only cuts away excess paper parts in the area of the trimming of the side edges, but also the protrusions of the tear thread, so that the tear thread of each envelope is cut to its correct length at the same time.
  • tear thread In order to be able to quickly and easily grasp the tear thread later, it makes sense to perforate a paper area at least at one end of a tear thread to form a tear-off corner. In a further embodiment of the invention, this can be carried out together with the format cutout of the side edges.
  • Fig. 2 shows the schematic structure of a section 15 of a machine 14 for the production of letterhead, which is part of an overall system.
  • An uninterrupted paper web 8 as also shown in FIG. 1, passes through this cutout 15, as can be seen in FIG. 2, which lies between the window station 10 and the station for the format side cutout 26 in the direction of the arrow 20.
  • the arrangement is direct Before the format side cutout has the advantage that the paper web glued to the tape is not subject to various curvatures before cutting the thread, which could force the thread to come off.
  • a thread winding device 16 and a guiding and pressing device 19 are assigned to the cutout 15.
  • the thread spool device 16 carries a thread spool 18 and this is followed by a dispenser 17, with which the thread tension of the tear thread 3 can also be regulated.
  • the tear thread 3 is removed from the thread spool 18 of the thread spool device 16 by the unwinding device 17 regulating the thread tension unwound through and led to the guide and pressing device 19.
  • the thread 3 is guided into the correct lateral position and then, if necessary, guided to the paper web 8 in the area in front of the station for the format side cutout 26 via further guide rollers and placed there on the paper web and pressed onto the paper web via the pressure roller 22. Since the tear thread 3 itself has the necessary adhesive, it is thereby glued to the paper web, which transports it back in the direction of the arrow 20 during operation, thereby forcing the same speed as the paper web 8 itself.
  • the pressure roller 22 can be used to generate the required contact pressure z. B. be spring loaded.
  • the lateral orientation of the tear thread 3 is such that it is placed along a folding edge 2 (FIG. 1) which extends in the direction of the arrow 20 and moves in this direction.
  • a folding edge 2 FIG. 1
  • the side edge 11 is cut on both sides of the paper web 8 using a rotating knife 25, as shown in FIG. 3, in a format cutting station 26.
  • a separating cut along the separating edge 21 for separating a blank from other blanks takes place later.
  • the knife contour 24 of the rotary knife shown in FIG. 3 which is shown again in development in FIG. 4 and can also be seen in development in FIG. 1, an unnecessary edge region, which is shown hatched in FIG. 1, is now cut off.
  • the tear thread 3 is cut through in this area, which becomes waste with the hatched paper area.
  • This cutting process forms side flaps 13 which are later folded inwards along the folding edge 2 when the envelope 1 is folded, so that after this folding inwards the tear thread 3 is covered by the paper of the blank. It ends exactly at the edges of the cut and does not protrude anywhere.
  • a perforation knife 25 is provided, with which the perforation 7 is introduced during the cut in such a way that the tear thread 3 is not damaged thereby.
  • This perforated area 4 at the end of the thread 5 then forms a tear-off corner after the folding of the envelope 1, which can be easily recognized and torn off, so that the corresponding end 5 of the thread 3 is held in hands and then the corresponding folded edge of the envelope can be torn open.
  • the entire width 9 of the paper web 8 is thus only reached by the side flaps 13 and is narrower at the side edges 11 which are cut by the knife contour 24, with a closure flap after the separating edge 21 opposite the transport direction of the arrow 20 23 of the next blank.
  • the cutting of such an envelope 1 and its production are known per se and therefore do not require any further explanation here either.
  • the thread that is assigned by an Thread winding device is provided, are guided in the correct lateral direction, because yes, the thread 3 to be provided on the thread spool 18 is not only wound one above the other but also side by side, so that this thread runs back and forth continuously when unwinding.
  • a thread guide roller for thread guidance, but other suitable means such as, for example, a thread inlet funnel with an outlet nozzle in the correct lateral position for the thread. If the thread spool is not too wide and instead has a larger diameter, a simple eyelet is sufficient as a thread guide, through which the thread runs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Microscoopes, Condenser (AREA)

Claims (4)

  1. Procédé pour la fabrication d'une enveloppe (1) ou d'une pochette pour expédition ou d'un objet similaire avec un fil de déchirage (3) inséré, ce dernier étant placé en cours de production dans un pli autre qu'un pli d'un rabat de fermeture avant que l'enveloppe ne soit complètement pliée, caractérisé en ce que, pendant le passage d'une bande de papier (8) continue et de largeur appropriée (9) dans une machine de transformation (14) et avant une opération de rognage des bords latéraux (11) destinée à obtenir une pièce découpée permettant le pliage final, au moins un fil de déchirage (3) est posé de façon continue à la hauteur d'un pli (2) latéral s'étendant dans le sens machine de la bande de papier, collé sous pression et/ou apport de chaleur et transporté avec la bande de papier (8), le fil de déchirage dépassant dans le sens de la longueur étant ensuite coupé lors de la découpure latérale au format.
  2. Procédé selon la revendication 1 caractérisé en ce qu'à au moins un extrémité (5) d'un fil de déchirage (3), une zone de papier (4) est perforée de manière à former un coin de déchirage (6).
  3. Procédé selon la revendication 2 caractérisé en ce que la perforation (7) est réalisée en même temps que la mise au format des bords latéraux (11).
  4. Procédé selon l'une des revendications 1 à 3 caractérisé en ce que le pli (2) est repassé sous pression après le pliage des rabats latéraux (13) entourant le fil de déchirage (3).
EP95100356A 1994-03-09 1995-01-12 Procédé de fabrication d'une enveloppe ou d'un sac d'envoi Expired - Lifetime EP0671337B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IL11285295A IL112852A0 (en) 1994-03-09 1995-03-02 Envelope or shipping container and method for making such articles
CA002144233A CA2144233A1 (fr) 1994-03-09 1995-03-08 Enveloppe ou conteneur; methode de leur fabrication
JP7048630A JP2619617B2 (ja) 1994-03-09 1995-03-08 封筒又は開封封筒の製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4407667A DE4407667A1 (de) 1994-03-09 1994-03-09 Briefumschlag oder Versandtasche sowie Verfahren und Einrichtung zur Herstellung solcher Umschläge
DE4407667 1994-03-09

Publications (2)

Publication Number Publication Date
EP0671337A1 EP0671337A1 (fr) 1995-09-13
EP0671337B1 true EP0671337B1 (fr) 1997-07-09

Family

ID=6512148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95100356A Expired - Lifetime EP0671337B1 (fr) 1994-03-09 1995-01-12 Procédé de fabrication d'une enveloppe ou d'un sac d'envoi

Country Status (4)

Country Link
EP (1) EP0671337B1 (fr)
AT (1) ATE155101T1 (fr)
DE (2) DE4407667A1 (fr)
DK (1) DK0671337T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100572211C (zh) * 2006-09-19 2009-12-23 陈毕峰 一种制造包装膜拉线的方法和设备
CN112223840B (zh) * 2020-10-15 2023-06-16 温州璐琳包装有限公司 一种文具袋高质量加工系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH376760A (it) * 1961-03-04 1964-04-15 Dozio Gian Piero Busta ad apertura rapida
FR2151763A5 (fr) * 1971-09-10 1973-04-20 Seren Raymonde
DE2447259A1 (de) * 1974-10-03 1976-04-08 Wolff Walsrode Ag Verfahren und vorrichtung zur herstellung von kunststoffbeuteln mit oeffnungshilfe
FR2304534A1 (fr) * 1975-03-17 1976-10-15 Marguet Roland Enveloppes auto-ouvrantes
DE7608975U1 (de) * 1976-02-07 1976-09-16 Karow, Volker, 6382 Friedrichsdorf Papierrolle
FR2420487A1 (fr) * 1978-03-22 1979-10-19 Bavari Benito Systeme d'ouverture d'enveloppes
DE3110897A1 (de) * 1981-03-20 1982-12-02 Ilija 7140 Ludwigsburg Milovanovic Briefoeffner mit aufreissschnur
IT217602Z2 (it) * 1989-06-08 1992-01-07 Bertoli Egidio Trivella Maria Busta per corrispondenza apribile a strappo.
DE9012013U1 (de) * 1990-08-20 1990-11-15 Gomez Escolar Roldan, Luis, Madrid Papierumschlag

Also Published As

Publication number Publication date
DE59500350D1 (de) 1997-08-14
EP0671337A1 (fr) 1995-09-13
DE4407667A1 (de) 1995-09-14
DK0671337T3 (da) 1998-02-16
ATE155101T1 (de) 1997-07-15

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