EP1147052B1 - Briefumschlag mit klebeverschluss sowie verfahren und vorrichtung zu seiner herstellung - Google Patents

Briefumschlag mit klebeverschluss sowie verfahren und vorrichtung zu seiner herstellung Download PDF

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Publication number
EP1147052B1
EP1147052B1 EP00903584A EP00903584A EP1147052B1 EP 1147052 B1 EP1147052 B1 EP 1147052B1 EP 00903584 A EP00903584 A EP 00903584A EP 00903584 A EP00903584 A EP 00903584A EP 1147052 B1 EP1147052 B1 EP 1147052B1
Authority
EP
European Patent Office
Prior art keywords
envelope
sensitive adhesive
pressure sensitive
area
flap
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
EP00903584A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1147052A1 (de
Inventor
Bert Nolte
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.)
BLESSOF GMBH
Original Assignee
BlessOF 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 BlessOF GmbH filed Critical BlessOF GmbH
Priority to EP05021994A priority Critical patent/EP1619013A1/de
Publication of EP1147052A1 publication Critical patent/EP1147052A1/de
Application granted granted Critical
Publication of EP1147052B1 publication Critical patent/EP1147052B1/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
    • B65D27/00—Envelopes or like essentially-rectangular containers for postal or other purposes having no structural provision for thickness of contents
    • B65D27/12—Closures
    • B65D27/14—Closures using adhesive applied to integral parts, e.g. flaps
    • B65D27/16—Closures using adhesive applied to integral parts, e.g. flaps using pressure-sensitive adhesive
    • 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
    • B65D27/12—Closures
    • B65D27/14—Closures using adhesive applied to integral parts, e.g. flaps
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B31B2160/102—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from essentially rectangular sheets
    • 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
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/261—Folding sheets, blanks or webs involving transversely folding, i.e. along a line perpendicular to the direction of movement
    • 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
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/62—Uniting opposed surfaces or edges; Taping by adhesives

Definitions

  • Envelopes usually have an address or one Address window bearing front, to which one-sided a flap connects, and on the other side a bottom flap or back, with side flaps glued, which are folded from the front.
  • a gumming of the final flap allows for their Moistening a closure. This closure is uncertain because the holding force depends on the degree of moistening and the Glue also requires some time for setting, so that with heavy filling, the flap pops up easily, before the glue has set.
  • the object of the invention is an envelope, including all types of Envelopes, mailers, pouches etc. are understood as well as a To provide a method and a device for its manufacture, which is suitable for closing the use of a very effective and aging resistant Adhesives without residual products (e.g., cover strips) and without disadvantages for the shape and usability of the envelope.
  • the pressure sensitive adhesive i.e., the pressure sensitive adhesive layer
  • the pressure-sensitive adhesive layer By applying the pressure sensitive adhesive (i.e., the pressure sensitive adhesive layer) to the release liner and overfolding of the cover part on which the pressure-sensitive adhesive is finally provided should be the pressure-sensitive adhesive then when re-opening this area transferred to the non-release-coated envelope part and is operational.
  • the adhesion of the adhesive layer to the non release-coated Part (fold-back) is much larger than at the release agent layer. In this way it can be avoided that the pressure-sensitive adhesive an area must be applied, which folded over after its application must become.
  • the pressure-sensitive adhesive is only intended for the fold-back.
  • the envelope back has a release layer in the area where the fold-back flap in the folded-back state rests.
  • the pressure sensitive adhesive on the Be provided in the final flap and him in the unused Condition-covering release layer on the inside of the envelope be provided, in an area covered by the turned down foldback flap is exposed. After this Hitting the fold-back flap will do this with the pressure-sensitive adhesive glued on the final flap.
  • the pressure-sensitive adhesives used can be conventional, for example Synthetic resin dispersions on an aqueous basis with adhesive properties to the cover material used. Hotmelts can also be used which are processed at processing temperatures of e.g. 120 ° C to 200 ° C, but a permanent adhesive effect even at room temperature. He is developing a strong Adhesive effect without moistening or other activation would be necessary before bonding.
  • a usable product Aqueous based is under the trade name "Eukalin 5354 ha "in the trade, a hotmelt under the trade name "Swift H 686/4".
  • the release agent layer either as applied separate coating or even on the used material can be provided, for example an acrylate resin, silicone acrylate or another Silicone compound included. Important is the dephasesive property. It can be any kind of so-called release varnish be used, their property among other things due to the fact that it closes the pores and thus the pressure-sensitive adhesive no chance to attack.
  • Figs. 1 to 5 show an envelope, which consists of a Web of flat material, preferably paper, by folding and Bonding or application of adhesive layers is made. It is also a production of single sheets possible and the used materials can be very different.
  • envelope 11 is an envelope in the standard format. Basically, however, is the production of mailing bags and bags with and without bottom fold or gussets possible in the manner to be described.
  • the envelope 11 has an intended for addressing and possibly provided with a viewing window, facing away from the viewer Front 12, to which by means of a grooved Fold line 13 a closure flap 14 connects.
  • a closure flap 14 connects to the opposite side.
  • a Bodenfalz 15 a Envelope back 16 connected with its inner surface folded against the inner surface of the front and up just before the fold line 13 is enough.
  • From her is through one Fold line 17 delimited a fold-back flap 18 which is parallel to the flap 14 extends and is dimensioned so that the Closure flap 14 in the closed state of the envelope ( Figure 5) covers it, but in the unused state (transport and storage condition of FIG. 3) in parallel beside her runs.
  • the adjacent to the fold line 17 region of the back is with a surface having release properties opposite one Provided adhesive.
  • This area will be referred to as Release agent area 22 referred to. He is so arranged it is equal to or larger than a pressure-sensitive adhesive area 23 on the fold-back flap.
  • the pressure sensitive adhesive area is almost enough across the entire width of the fold-back flap and the envelope.
  • the release agent area 22 only needs as wide as the Adhesive area and be positioned so that in the folding the fold-back flap 18 about the fold line 17 of the Pressure-sensitive adhesive lies exclusively on the release agent area (Fig. 3).
  • FIG. 1 the envelope before the application of the Pressure-sensitive adhesive 23 'shows
  • Fig. 2 short the envelope. before the Completion, i. before folding the flap 14th and the fold-back flap 18
  • Fig. 3 shows the finished Envelope as it leaves the manufacturing machine, packed and shipped.
  • the flap 14, the of Glue is completely free, against an area of the inner Surface of the front folded while against the Rear 16 folded foldback flap 18 the pressure-sensitive adhesive area 23 covers, which is brought to the release agent portion 22.
  • the envelope is thus protected by an adhesive and safe, usually not nondestructive openable adhesive closure closed, without the pressure-sensitive area previously by a Separate cover strip had to be freed.
  • the release agent layer which is also referred to as an anti-adhesion layer can be in the form of a varnish or a different kind Coating applied one or more layers be neither the usability nor visually, as he e.g. can be transparent.
  • a special advantage lies in that the opened flap on which the contents slides along, is completely free of glue. It would be too possible, the release agent layer with a print of the To connect envelope.
  • the envelope is made of a material whose outer surface is made of a relative to the pressure-sensitive adhesive used 29 'Dephasesiven material exists, whereby by special measures a liability between the pressure-sensitive adhesive layer 23 "and the corresponding area the fold-back flap is made.
  • the inside of the Envelope could be a surface without release properties or this could be separate in the flap area be generated.
  • the pressure-sensitive adhesive on the inside the closure flap is provided and the release agent the covered on the opposite side of the inside, then although the envelope outside can be kept free of release agent be, but the flap can only after filling of the envelope are folded outward, resulting in the use less advantageous.
  • the device 30 shown in Fig. 7 for the production of Envelopes 11 from a paper web 31 is from the following, after Type of a modular system lined up stations built up:
  • a unwinding station 32 is a supply roll 33 for the Paper web 31 stored.
  • the web 31 is deducted from this and passed over a compensation path 34, the u.a. for one uniform web tension ensures. It may also be the possibility a roll change be provided without machine stop.
  • she then runs over a railway control station 35, which is also a Transverse alignment of the web, in a printing station 36th one, in the printing units 37, mostly as flexographic printing are formed, for printing the paper web, for example for the inside of the envelope, are provided.
  • this Print station is also an order or printing unit 38 for the Application of the release agent portion 22 is provided.
  • the release agent for example a so-called release varnish
  • a depatided course for example, the paper pores closed and covered fibers are.
  • the release agent layer by means of a Drying device 39, for example with infrared or Dried UV lamps.
  • a Breausschneidestation 41 with the possibly the cutout is cut out for an address window.
  • window material station 42 is of a Roll 42a transparent window material fed and over glued or sealed the window.
  • Form cutting station 43 at still coherent web, the two sides of the web so circumcised, that the side flaps 19, etc. performing Edge contour arises.
  • the material web is cross-cut, i.e. the edge 24 of the fallback flap is from the edge 26 of the flap separately.
  • the Rear or bottom flap 16 folded about the fold line 15 and over the two parallel glue lines 21 on each side glued to the side flaps 19, but the area the fold-back flap 18 remains free.
  • This roller can therefore accordingly have a sawtooth profile, similar to a wheel a ratchet mechanism.
  • the relay wheel 47 creates a shingled stream of envelopes 11 in that the incoming Envelopes with their leading fold edge 15 by the arrangement of the relay wheel and by the opposite the incoming envelopes lower peripheral speed of the relay wheel under the leading, already slower promoted envelopes and against as grades trained stops with the desired and on the Accelerate peripheral speed coordinated clearance spacing.
  • a printing unit working adhesive applicator 49th provided with the pressure-sensitive adhesive on the release agent area 22 is applied (see Fig. 2).
  • the adhesive effect on the Separating layer should be at least so large that the pressure-sensitive adhesive while processing in the machine is liable.
  • the pressure-sensitive adhesive area can be so large that it almost the entire folding door 18 occupies.
  • This station works preferably with an applicator roll having one or more individual, spaced apart circumferentially application segments. These can be used for uniform adhesive application with a screened, i. with closely juxtaposed Wells equipped surface provided be after the glue loading, for example by immersion or transfer of an adhesive-carrying Roller, being doctored. This will be a special uniform and laterally precisely defined pressure-sensitive adhesive surface reached.
  • the scattered envelopes 11 run in the foldback fold-folding station 50 on. She works according to a scheme which is shown in Fig. 8.
  • the envelope 11 runs with its leading Bodenfalz edge 15 against a on an upper folding roller 51 provided stop 52, the one Alignment function takes over, if necessary.
  • the upper Folding roller 51 and the lower parallel and with opposite Rotation revolving, slightly set back in the conveying direction Faltwalze 53 form a gap 54 between them, through which the envelopes are running.
  • the folding rollers are with selectively controllable depending on its circumferential position Suction slots or openings 55, 56, 57 provided. These Be about not shown conventional controls according to Art connected by rotary valves to a corresponding suction air source.
  • the arriving on a conveyor or conveyor table 88 Envelopes will, at the same time as the start of the Stop 52, from the suction openings 55 to the folding roller 51st sucked in and in the direction of which, at the beginning of the Conveying direction 40 corresponds, taken in the direction of rotation.
  • the suction openings selectively supply the envelope in the direction of rotation free in time for him to be caught by a trap 58 which is from an obliquely upwardly directed catch plate 59 and a pocket bottom forming stop 60th consists.
  • the envelope will be in the area of the stop 60, without Stopping it hard stopped because the suction at the lower, also in the region of the gap 54 in the conveying direction rotating folding roller 53 is activated and the local Suction slots 57, the flap 14 and capture it with take the rotation of the folding roller.
  • a recess 68 in the upper Faltwalze 51 provided, if necessary, a Trennmittei für 62nd of polytetrafluoroethylene (PTFE) at its bottom.
  • the fold-back flap 1B is grasped by fold surfaces 69, 70, have the suction openings 56, 56a.
  • the flat 69, 70 the in the range of a to be recognized in detail in Fig. 8, about triangular recess 61 are, are designed so that the Folding flap in its adjacent to the fold line 17 Area at a shallower angle from the suction port 56th is sucked.
  • the suction air is switched off at the suction slot 56 and for those at the suction gap 56 a, which belongs to the surface 70 turned on. It could also be a simultaneous connection be made.
  • This area is under a larger one Angle opposite the tangent to the folding roller 51 employed. Since the unfolding of the fold-back flap 18 at the high operating speed done very quickly, it can through Dynamic forces buckling or bending and supporting from the suction of the openings 56a, to the surface 70 create.
  • the flap 14th and the fold-back flap 18 are correspondingly to those shown in FIG. Created 3 recognizable points of the envelope, the Pressure-sensitive adhesive area 23 resting on the release agent area 22 applied to the hitherto uncoated folding flap 18 and is pressed.
  • the adhesive transfer from the Separation layer to the fold-back flap causing pressure will either still in the device or even when packaging or applied in the packaging.
  • a Storage drum 66 (fan wheel) the flow of envelopes stored a conveyor 67 and forwarded to the packaging.
  • Fig. 6 shows an enlarged partial section, in which before in particular, the material thicknesses to be representable, strong are excessive.
  • the release agent layer 22 is on a primer layer 22 'applied, on the one hand a preparation for the release agent, e.g. by closing the paper pores and on the other hand, an adhesion between paper and release agent can make.
  • Fig. 7 described device another applicator in a printing station, depending on the type of primer with or without Drying or hardening device before the release agent application.
  • Fig. 6 shows finer, that at the remindfaltklappe 18 a front, to the edge 24th subsequent handle portion 27 'may be provided, outside the Pressure-sensitive adhesive area 23 and from this by a pre-break line 27 "(grooving, Line stamping o. The like.) Is separated.
  • This strip-shaped grip portion 27 ' can be light set up with a finger and taken to pull off the folding door 18 and to be able to set up.
  • the invention thus provides an envelope in an advantageous embodiment, consisting of a front and a back, which have side flaps connected to each other. He has a fold-back flap on which a pressure-sensitive adhesive layer 23 "is applied, and the pressure-sensitive adhesive is applied to the fold-back flap by transfer, i. the pressure-sensitive adhesive is in the manufacture of the release agent layer applied and taken over when erecting the fold-back of this. It is a strong-acting, adhesive adhesive without moistening or other activation is effective.
  • the fold-back flap is used for transport and Storage applied to the Umschlschückseite, with a release agent coated The area is provided to the redissolution of the pressure-sensitive adhesive before use enable. To close the otherwise uncoated flap pressed on the adhesive-coated fold-back flap.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Closing Of Containers (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Credit Cards Or The Like (AREA)
  • Tubes (AREA)
  • Package Closures (AREA)
EP00903584A 1999-01-19 2000-01-18 Briefumschlag mit klebeverschluss sowie verfahren und vorrichtung zu seiner herstellung Expired - Lifetime EP1147052B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05021994A EP1619013A1 (de) 1999-01-19 2000-01-18 Vorrichtung zur Herstellung von Briefumschlägen

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19901821A DE19901821A1 (de) 1999-01-19 1999-01-19 Briefumschlag mit Klebeverschluß sowie Verfahren und Vorrichtung zu seiner Herstellung
DE19901821 1999-01-19
PCT/EP2000/000330 WO2000043280A1 (de) 1999-01-19 2000-01-18 Briefumschlag mit klebeverschluss sowie verfahren und vorrichtung zu seiner herstellung

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP05021994A Division EP1619013A1 (de) 1999-01-19 2000-01-18 Vorrichtung zur Herstellung von Briefumschlägen

Publications (2)

Publication Number Publication Date
EP1147052A1 EP1147052A1 (de) 2001-10-24
EP1147052B1 true EP1147052B1 (de) 2005-12-28

Family

ID=7894651

Family Applications (2)

Application Number Title Priority Date Filing Date
EP00903584A Expired - Lifetime EP1147052B1 (de) 1999-01-19 2000-01-18 Briefumschlag mit klebeverschluss sowie verfahren und vorrichtung zu seiner herstellung
EP05021994A Withdrawn EP1619013A1 (de) 1999-01-19 2000-01-18 Vorrichtung zur Herstellung von Briefumschlägen

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP05021994A Withdrawn EP1619013A1 (de) 1999-01-19 2000-01-18 Vorrichtung zur Herstellung von Briefumschlägen

Country Status (19)

Country Link
US (1) US6732494B1 (hu)
EP (2) EP1147052B1 (hu)
AT (1) ATE314269T1 (hu)
AU (1) AU761320B2 (hu)
BR (1) BR0007606A (hu)
CA (1) CA2359099C (hu)
CZ (1) CZ298416B6 (hu)
DE (2) DE19901821A1 (hu)
DK (1) DK1147052T3 (hu)
ES (1) ES2253204T3 (hu)
HR (1) HRP20010535A2 (hu)
HU (1) HUP0105017A3 (hu)
MX (1) MXPA01007313A (hu)
NO (2) NO325310B1 (hu)
NZ (1) NZ513438A (hu)
SK (1) SK287104B6 (hu)
TR (1) TR200102079T2 (hu)
WO (1) WO2000043280A1 (hu)
ZA (1) ZA200105948B (hu)

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US6545086B1 (en) * 2001-10-01 2003-04-08 Dow Corning Corporation Silicone pressure sensitive adhesive compositions

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DE50011972D1 (de) 2006-02-02
SK10152001A3 (sk) 2002-07-02
EP1147052A1 (de) 2001-10-24
NO20074405L (no) 2001-07-12
ATE314269T1 (de) 2006-01-15
EP1619013A1 (de) 2006-01-25
HRP20010535A2 (en) 2002-08-31
HUP0105017A3 (en) 2003-09-29
ES2253204T3 (es) 2006-06-01
DK1147052T3 (da) 2006-05-15
CA2359099A1 (en) 2000-07-27
NO20013458L (no) 2001-07-12
WO2000043280A1 (de) 2000-07-27
ZA200105948B (en) 2002-04-24
NO20013458D0 (no) 2001-07-12
NO325310B1 (no) 2008-03-25
CA2359099C (en) 2007-08-21
AU2542000A (en) 2000-08-07
DE19901821A1 (de) 2000-07-20
SK287104B6 (sk) 2009-12-07
TR200102079T2 (tr) 2001-12-21
NZ513438A (en) 2004-02-27
CZ20012547A3 (cs) 2003-02-12
HUP0105017A2 (hu) 2002-04-29
BR0007606A (pt) 2001-10-30
MXPA01007313A (es) 2002-06-04
CZ298416B6 (cs) 2007-09-26
AU761320B2 (en) 2003-06-05
US6732494B1 (en) 2004-05-11

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