EP0755868A1 - Kombination von Siegelstreifen und Aufreissband für Kuvert und Verfahren zur Herstellung - Google Patents
Kombination von Siegelstreifen und Aufreissband für Kuvert und Verfahren zur Herstellung Download PDFInfo
- Publication number
- EP0755868A1 EP0755868A1 EP96304996A EP96304996A EP0755868A1 EP 0755868 A1 EP0755868 A1 EP 0755868A1 EP 96304996 A EP96304996 A EP 96304996A EP 96304996 A EP96304996 A EP 96304996A EP 0755868 A1 EP0755868 A1 EP 0755868A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensitive adhesive
- pressure
- carton
- envelope
- opening
- 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.)
- Withdrawn
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 21
- 239000002985 plastic film Substances 0.000 claims description 8
- 229920006255 plastic film Polymers 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 4
- 239000005026 oriented polypropylene Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
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
- B65D27/00—Envelopes or like essentially-rectangular flexible 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
- 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 flexible containers for postal or other purposes having no structural provision for thickness of contents
- B65D27/32—Opening devices incorporated during envelope manufacture
- B65D27/34—Lines of weakness
Definitions
- the present invention relates to shipping containers in the nature of envelopes and cartons. More specifically, it relates to mailing envelopes and cartons which are provided with a single means for sealing and opening said envelopes and cartons.
- the envelopes and cartons employed are provided with sealing means such as an adhesive-coated tape and a tear strip or tear tape for opening the envelope or carton after it has been sealed.
- sealing means such as an adhesive-coated tape and a tear strip or tear tape for opening the envelope or carton after it has been sealed.
- said tear tapes or strips are separate from the sealing means, i.e. the sealing means is one component and the tear strip or tape is a separate component.
- the method of making the envelope or carton is time consuming and costly as application operations for the adhesive as well as the tear tape or strip must be made.
- a mailing envelope or carton having a closure flap disposed adjacent the opening thereof, characterised in that the mailing envelope or carton comprises combination sealing and opening means disposed on the inner surface of said flap, said sealing and opening means including a mono-oriented plastic film disposed along the length of said flap and having notches disposed in at least one end thereof, a coating of a pressure-sensitive adhesive on each surface of said film, and a release liner disposed on the outer coating of said pressure-sensitive adhesive.
- the present invention is directed to a shipping or mailing envelope or carton which has a closure flap which carries a sealing and opening component comprising a double-coated, pressure-sensitive adhesive tape based on mono-oriented plastic film and the like which has been notched at its extremities so as to provide very straight and easy tears.
- a method of making a combination sealing and opening means for a mailing envelope or carton having a closure flap disposed adjacent the opening of said envelope or carton comprising the steps of
- said mono-oriented film is a uniaxially-oriented polypropylene film.
- the pressure-sensitive adhesive is preferably an acrylic pressure-sensitive adhesive or a rubber-based pressure-sensitive adhesive.
- the envelope of the present invention is shown at 10 in Figure 1.
- the envelope 10 is comprised of a front panel (not shown) and a rear panel 12.
- the front panel is provided with overlapping flaps 14 and 16 which are glued to the rear panel 12 so as to form a pocket.
- a third flap 18 is disposed adjacent the top edge of the front panel and is employed to seal off the envelope 10.
- the flap 18 is provided with tabs 20 and 22 disposed on each side of said flap 18 adjacent a fold line 24.
- a pressure-sensitive adhesive closure and opening tape 26 is disposed on the inner surface of the flap 18 adjacent to the fold line 24.
- Said tape 26 has a length sufficient to cover the length of the flap 18, including said tabs 20 and 22, and width of sufficient amount to cover the majority of the inner surface of the flap 18 so as to present a strong bonding area for bonding said flap 18 to the rear panel 12 of the envelope.
- the closure and opening tape 26 is comprised of a plurality of layers and may be generally described as a double-coated mono-oriented film with a 2-side silicon-coated release liner.
- the mono-oriented film is shown at 28 and may be any uniaxially-oriented plastic film that will provide strength in the machine direction, i.e. along the longitudinal axis of the film.
- said film will have a gage thickness of from about 1.0 mil to about 10 mil, preferably from about 1.5 mil to about 4.0 mil.
- Such film exhibits strengths of from about 50 lbs./in. to about 500 lbs./in.; preferably such films should exhibit strengths of from about 90 lbs./in. to about 250 lbs./in. Films of these strength characteristics prevent premature breakage and allow straight tears in the machine direction after they have been notched.
- suitable films are polypropylene, polyester, polyethylene, etc., i.e. any uniaxially-oriented plastic film.
- the film 28 is coated on each side thereof with an adhesive 30 and 32.
- Said adhesive may be any rubber-based or acrylic pressure -sensitive adhesive. Suitable adhesives are well known in the art and are available from suppliers such as National Starch & Chemical Co., Monsanto Co., etc..
- the final layer of the closure and opening tape 26 is the 2-side silicon-coated release liner 34 which is applied to the outer adhesive layer 32. As is known in the art, said liner is removed just prior to closure of the flap 18 so that the adhesive layer 32 may bond the flap 18 to the rear panel 12.
- the method of producing the envelope constituting the present invention is simple and straightforward.
- the sealing and opening tape 26 is prepared by standard coating methods and permanently affixed to the flap 18 via the adhesive 30. Once the tape 26 is affixed to the flap 18, the tape 26 is nicked or notched at 38 and 40 adjacent the tabs 20 and 22 at each end thereof This permits the tape 26 to split along the nick or notch and run the width of the envelope thereby opening the envelope with a scissor-like action with an extremely clean tear.
- the strength in the machine direction of the tape 26 allows it to tear the envelope open without stretching or breaking. Further, the weakness of the tape 26 in the cross-machine direction aids it in tearing in the machine direction from the nick or notch 38 or 40.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Adhesive Tapes (AREA)
- Cartons (AREA)
- Adhesives Or Adhesive Processes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US50680795A | 1995-07-25 | 1995-07-25 | |
| US506807 | 1995-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0755868A1 true EP0755868A1 (de) | 1997-01-29 |
Family
ID=24016090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96304996A Withdrawn EP0755868A1 (de) | 1995-07-25 | 1996-07-05 | Kombination von Siegelstreifen und Aufreissband für Kuvert und Verfahren zur Herstellung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0755868A1 (de) |
| JP (1) | JPH09156645A (de) |
| KR (1) | KR970006125A (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999061344A1 (en) | 1998-05-28 | 1999-12-02 | 3M Innovative Properties Company | Tear control closing tape and container with tear control closing tape |
| US6354739B1 (en) | 1998-05-28 | 2002-03-12 | 3M Innovative Properties Company | Tear control closing tape and container with tear control closing tape |
| US6513657B2 (en) | 2001-04-26 | 2003-02-04 | 3M Innovative Properties Co. | Product packaging with handle-forming tearable tape system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006282215A (ja) * | 2005-03-31 | 2006-10-19 | Sato Corp | 往復封筒用シート |
| JP4531110B1 (ja) * | 2009-10-16 | 2010-08-25 | 東海加工紙株式会社 | 宅配用又は郵送用の封筒 |
| PL3061484T3 (pl) * | 2011-05-31 | 2018-05-30 | Atos Medical Ab | Arkusz okrywający |
| KR101357748B1 (ko) * | 2012-03-14 | 2014-02-04 | (주)농협아그로 | 숙기 확인이 용이한 병해충 침입 방지용 과일봉지 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3777884A (en) * | 1972-03-10 | 1973-12-11 | Minnesota Mining & Mfg | X-ray film |
| US3980224A (en) * | 1973-09-13 | 1976-09-14 | Mitsubishi Petrochemical Company Limited | Opening means for containers and packages |
| US4781296A (en) * | 1987-05-26 | 1988-11-01 | Minnesota Mining And Manufacturing Company | Method affording an easy opening device for nonwoven thermoplastic fiber envelopes |
| EP0447209A1 (de) * | 1990-03-14 | 1991-09-18 | Minnesota Mining And Manufacturing Company | Aufreissbarer Versandsumschlag |
-
1996
- 1996-07-05 EP EP96304996A patent/EP0755868A1/de not_active Withdrawn
- 1996-07-12 JP JP8182904A patent/JPH09156645A/ja active Pending
- 1996-07-25 KR KR1019960030200A patent/KR970006125A/ko not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3777884A (en) * | 1972-03-10 | 1973-12-11 | Minnesota Mining & Mfg | X-ray film |
| US3980224A (en) * | 1973-09-13 | 1976-09-14 | Mitsubishi Petrochemical Company Limited | Opening means for containers and packages |
| US4781296A (en) * | 1987-05-26 | 1988-11-01 | Minnesota Mining And Manufacturing Company | Method affording an easy opening device for nonwoven thermoplastic fiber envelopes |
| EP0447209A1 (de) * | 1990-03-14 | 1991-09-18 | Minnesota Mining And Manufacturing Company | Aufreissbarer Versandsumschlag |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999061344A1 (en) | 1998-05-28 | 1999-12-02 | 3M Innovative Properties Company | Tear control closing tape and container with tear control closing tape |
| US6354739B1 (en) | 1998-05-28 | 2002-03-12 | 3M Innovative Properties Company | Tear control closing tape and container with tear control closing tape |
| US6513657B2 (en) | 2001-04-26 | 2003-02-04 | 3M Innovative Properties Co. | Product packaging with handle-forming tearable tape system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09156645A (ja) | 1997-06-17 |
| KR970006125A (ko) | 1997-02-19 |
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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: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| 17P | Request for examination filed |
Effective date: 19970116 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
| 18W | Application withdrawn |
Withdrawal date: 19970714 |