GB2255545A - Packaging a stack of sheets - Google Patents

Packaging a stack of sheets Download PDF

Info

Publication number
GB2255545A
GB2255545A GB9209801A GB9209801A GB2255545A GB 2255545 A GB2255545 A GB 2255545A GB 9209801 A GB9209801 A GB 9209801A GB 9209801 A GB9209801 A GB 9209801A GB 2255545 A GB2255545 A GB 2255545A
Authority
GB
United Kingdom
Prior art keywords
article
strip
sheets
sensitive adhesive
tape
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Withdrawn
Application number
GB9209801A
Other versions
GB9209801D0 (en
Inventor
David James Francis
Peter Jack Gunthorpe
Derek Stone
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of GB9209801D0 publication Critical patent/GB9209801D0/en
Publication of GB2255545A publication Critical patent/GB2255545A/en
Withdrawn legal-status Critical Current

Links

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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B65D65/14—Wrappers or flexible covers with areas coated with 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5855—Peelable seals
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/06—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/14—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks folded-up around all sides of the contents from a portion on which the contents are placed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Frames And Binding Bands (AREA)

Abstract

An article comprising a plurality of, eg abrasive, sheets 40 positioned with a packaging band 2, 4, 6, 8 that may be repeatedly fastened and unfastened. The packaging band is formed from a strip of material (fig 3) having cooperating fastening means at each end comprising a pressure-sensitive adhesive, eg an adhesive tape, 32 and a fastening surface 34 to which the pressure-sensitive adhesive may be repeatedly adhered and removed when the strip is formed into a band. At each side of the strip side portions (5, fig 3) may be provided so as to cover the ends of the sheets. The fastening surface may be provided with a finger-lift 36. <IMAGE>

Description

Packaging This invention relates to packaging stacks of sheet material and in particular to the packaging of abrasive sheets.
It is common practise in the abrasives industry to sell abrasive sheets in the form of quires consisting of a stack of fifty abrasive sheets. The dimensions of the sheets may vary but the most common sizes are a full sheet (230mm x 280mm) and half sheets (115mm x 280mm and 230mm x 140mm). The thickness of a quire of abrasive sheets depends upon the grade of abrasive but general ranges from under lcm to about 2.5cm.
The quires of abrasive sheets must be packaged in a manner which is convenient in terms of manufacture, sale and use by the customer. Furthermore, the packaging should not contribute excessively to the cost of the product. Various packaging techniques have been used including completely encasing the quire in a shrink wrapped film, applying a shrink wrapped band or sleeve around the squire, forming a carton around the quire by folding a cardboard blank and glueing and/or interlocking flaps of the blank and forming a band or sleeve around the quire by folding a cardboard blank and interlocking the ends of the blank.
The latter packaging technique is economical, securely holds the quire together during transportation and sale and allows the customer to repeatedly open and close the sleeve to remove abrasive sheets. The sleeve generally extends longitudinal around the quire and has a width sufficient to completely cover the abrasive sheet thereby protecting the sheets from dust.
Figures 1 and 2 of the accompanying drawings illustrate blanks from which such sleeves may be formed.
The blanks comprise portions (2, 4, 6, 8 and 10) separated by fold lines shown by dashed lines. Portion (6) is dimensioned to cover a major surface of a quire of abrasive sheets, portions (4 and 8) are dimensioned to cover the ends of a quire and portions (2 and 10) are dimensioned to cover a major surface of the quire together with sufficient overlap to allow interlocking.
The blank shown in Figure 1 comprises a flap or lug (20) on portion (2) which is capable of engagement within slot (22) in portion (10). The blank shown in Figure 2 comprises a pair of lugs (24) on portion (2) which are capable of interlocking with a pair of apertures (26) in portion (10).
The dimensions "at to 'toe" may vary depending on the size of the abrasive sheet, the direction of wrapping, the degree of coverage required and the arrangement of interlocking parts. Exemplary dimensions for a quire of full sheets are: Dimension Figure 1 Figure 2 a 283mm 283mm b 231mm 231mm c lO-25mm 10-25mm d 267mm 237mm e 81mm llOmm Whilst such a sleeve packaging arrangement is satisfactory from many points of view it is difficult to develop a machine which will automatically package quires of abrasive sheets ensuring interlocking of the flaps or lugs within the slits or apertures. Accordingly, the packaging operation is generally accomplished by hand.
The intelocking action requires slight flexing of the quire and surrounding sleeve in order to ensure correct location of the flap or lug. Whilst this action does not require great strength it has been found that, in common with other physically repetitive tasks, -repetition of this action over prolonged periods of time e.g. by working on a production line, may increase manual strain.
It is an object of the present invention to provide a packaging system in which this problem is reduced.
Therefore according to the present invention there is provided a plurality of sheets positioned within a packaging band, the packing band comprising a strip of material having co-operating fastening means at each end allowing the strip to be repeatedly fastened to form a bank and opened to facilitate removal of a sheet therefrom, characterised in that the fastening means comprises a pressure-sensitive adhesive at one end of the strip and a fastening surface at the other end of the strip to which the pressure-sensitive adhesive may be repeatedly adhered and removed.
It l;as been found that the use of a repositionable pressure-sensitive adhesive, which is capable of being stripped from and reapplied, to a surface provides a simple and effective fastening means for a packaging band. Such fastening means is sufficiently strong to withstand transportation and storage of the stack of sheets and readily allows the band to be opened and closed. Furthermore, the use of such a fastening means reduces the manual strain upon the operators during the packaging operation and lends itself to automation.
The fastening means may take the form of a layer of pressure-sensitive adhesive applied to the overlapping portion of one end of the strip. A priming layer may be applied before application of the adhesive. The surface of the other end of the strip which will be contacted by the adhesive to close the packaging band may be provided with a receptor layer to ensure the desired properties of adhesion and peal-apart are obtained. Suitable adhesives include those employed repositionable notes such as those commercially available from 3M under the registered trade mark "Post-It" and adhesives of the type used on the flaps of multi-use envelopes.
The preferred embodiment of the invention utilises a refastenable tape closure comprising a pressure-sensitive adhesive tape and optionally a target tape. Such refastenble tape closures have been employed on disposable diapers and the like and are disclosed, for example, in U.S. Patent Specification Nos. 4,726,971, 4,778,701, 4,801,480 and 4,959,265 and in European Patent No. 0148587. The adhesive tape is preferably applied to one end of the strip such that it projects beyond the end. The target tape is applied to the region of the other end of the strip which will be contacted by the adhesive tape. The adhesive tape its preferably provided with a finger-lift portion at its exposed end to facilitate release of the tape when the band is opened.
Figure 3 of the accompanying drawings illustrates the blank of a packaging band in accordance with the invention. The blank comprises portions (2, 4, 6, 8 and 10) which, when folded, complete a band or sleeve extending around a stack of sheets. The portions are separated by fold lines represented in dashed lines.
Multiple fold lines (30) are shown which allows the blank to be folded to accommodate stacks of different thickness "c", thus the same blank can be used to package quires of abrasive sheets of different abrasive grade.
In accordance with the invention the blank comprises a pressure-sensitive adhesive tape firmly adhered to one end and projecting beyond the end. A target tape (34) is applied to the opposite end of the blank in the region to be contacted by the pressure-sensitive adhesive tape.
The packaging band may additionally comprise side portions (5) each having a flap (7) which may be folded over the stack of sheets to impart additional stability to the stack. The side~portions (5) may have multiple fold lines (30) in a similar manner to portions (4 and 8) to accommodate stacks of different thickness.
Figure 4 shows a cross-section through a stack of sheets (40) around which the blank of Figure 3 is folded to form a packaging band. Portion 2 of the blank overlaps portion (4) and the adhesive tape (32) is adhered to the target tape (34). securing the band. The tape (32) is provided with a finger-lift (36) at its free end to facilitate lifting of the tape- when- it is desired to open the band. The finger-lift comprises a tack-free area which may conveniently be obtained by folding a portion of the tape (34) back on itself, or covering a portion of the adhesive with a separate piece of tape.
Figure 3 exemplary dimensions for the blank suitable for packaging a quire of full sheet abrasive materials are: a 283mm b 231mm c 10-25mm d 220mm e 80mm f 50mm The blank may be made of any suitable material capable of sustaining a stable package during the transportation, sale and intended use of the stack of sheets. Generally the blank is formed of card or strong paper but may be made of plastics material, textile material etc.
Figure 5 represents a cross-section through the laminate which is designed for use with abrasive packaging closure bands of the invention.
The composite is subdivided into fastening tape (50), target tape (57), fingerlift (54) and center strip (56).
Fastening tape (50) comprises any suitable paper, polycoated paper, or filmic backing provided a release coating (58) of a solvent, heat cured silicone or a radiation cured silicone applied directly to the substrate to facilitate unwinding of the composite tape when wound upon itself about the core. One face of the backing is coated with a layer, a normally tacky and aggressive pressure sensitive adhesive (60). Suitable adhesives include -conventidnal rubber resin adhesives which have tack characteristics modified by the inclusion of tackifying resins such a:i those described in U.S.
Patent Serial No. 4,136,071.
Target tape (52) formed of any suitable tape backing material is positioned so it coincides with and covers part of the adhesive layer (60). The top surface of the target tape (52) is coated with either a solvent, heat cured silicone or a radiation cured silicone release coating (62). The bottom surface'of the target tape (52) is coated with a layer (64) of normal tack and pressure sensitive adhesive. Suitable adhesives are described in U.S. Patent Serial No. 4,136,071.
This adhesive layer must form a strong shear bond to the coated board of the abrasive packaging where it is adhered during use and may be the same adhesive layer as layer (60).
The fingerlift (54) is positioned between the fastening tape (50) and the target tape (52). The fingerlift (54) is adhered to the fastening tape (50) by adhesive layer (60).
The fingerlift (54) facilitates the lifting of the fastening tape (50) from the target tape (52).
The centre strip (56) typically formed of a narrow strip of film material, which may be polyvinyl chloride or polyester film is positioned so that one quarter of its width lies between the fastening tape (50) and the target tape (52). The centre strip (56) is adhered to adhesive surface (60).
The centre strip (56) serves to detackify the area of the fastening tape (50) adhesive layer (60) so as to prevent it adhering to the abrasive packing materials.

Claims (15)

CI~5.IMS
1. An article comprising a plurality of sheets positioned with a packaging band, the packaging band comprising a strip of material having co-operating fastening means at each end allowing the strip to be repeatedly fastened to form a band and opened to facilitate removal of a sheet therefrom, characterised in that the fastening means comprises a pressure-sensitive adhesive at one end of the strip and a fastening surface at the other end of the strip to which the pressuresensitive adhesive may be repeatedly adhered and removed.
2. An article as claimed in Claim 1 in which the pressure-sensitive adhesive is applied to one end of the strip.
3. An article as claimed in Claim 1 in which the repositicnable pressure-sensitive adhesive is present on a tape.
4. An article as claimed in Claim 3 in which the repositionable pressure-sensitive adhesive tape extends beyond the end of the strip.
5. An article as claimed in Claim 4 in which the pressure-sensitive adhesive tape includes a finger-lift.
6. An article as claimed in any preceding Claim in which a target tape is present on that area of the strip which is contacted by the pressure-sensitive adhesive when the strip is fastened.
7. An article as claimed in any one of Claims 3 to 6 in which the fastening means comprises a tape closure as disclosed in any one of U.S. Patent Specification Nos.
4,726,971, 4,778,701, 4,80it480 and 4,959,265 and in European Patent No. 0148587.
8. An article as claimEd in any preceding Claim in which said sheets comprise abrasive sheets
9. An article as claimed in Claim 8 in which said sheets are full sheets of abrasive paper.
10. An article as claimed in Claims 8 or 9 in which said stack is a quire.
11. An article as claimed in any preceding Claim in which the strip is dimensioned to-wrap longitudinally around the stack.
12. An article as claimed in any preceding claim having portions covering each side of the stack.
13. An article as claimed in any preceding Claim in which the strip is dimensioned to completely cover the stack.
14. An article as claimed in Claim 1 substantially as herein described with reference to Figures 3 and 4 of the accompanying drawings.
15. A packaging band as defined in any preceding Claim for use with a stack of sheets.
GB9209801A 1991-05-09 1992-05-07 Packaging a stack of sheets Withdrawn GB2255545A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919110026A GB9110026D0 (en) 1991-05-09 1991-05-09 Packaging

Publications (2)

Publication Number Publication Date
GB9209801D0 GB9209801D0 (en) 1992-06-24
GB2255545A true GB2255545A (en) 1992-11-11

Family

ID=10694694

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919110026A Pending GB9110026D0 (en) 1991-05-09 1991-05-09 Packaging
GB9209801A Withdrawn GB2255545A (en) 1991-05-09 1992-05-07 Packaging a stack of sheets

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919110026A Pending GB9110026D0 (en) 1991-05-09 1991-05-09 Packaging

Country Status (1)

Country Link
GB (2) GB9110026D0 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0629561A2 (en) * 1993-06-10 1994-12-21 Kraft Foods, Inc. Package for sliced food product
US20100288825A1 (en) * 2007-10-02 2010-11-18 Nestec S.A. Packaging for bar-like foodstuffs
WO2019052646A1 (en) * 2017-09-14 2019-03-21 Essity Hygiene And Health Aktiebolag Bundle comprising a tied stack of folded paper sheets
US20190248556A1 (en) * 2018-02-12 2019-08-15 Maintek Computer (Suzhou) Co., Ltd Packaging module and package fixture

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540614A (en) * 1981-09-24 1985-09-10 Tokyo Shibaura Denki Kabushiki Kaisha Bundle of paper sheets or the like
US4546875A (en) * 1983-07-06 1985-10-15 Pauline C. Zweber Coin wrapper
EP0206806A2 (en) * 1985-06-24 1986-12-30 Xerox Corporation Copy sheet prepackaged shipping and loading wrapper for use in a high volume duplicator
US4801490A (en) * 1986-05-07 1989-01-31 Schuette James R Method and apparatus for sand blasting a design on glass
GB2250256A (en) * 1990-11-01 1992-06-03 Geoffrey Malcolm Race Bank note bundle retainer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540614A (en) * 1981-09-24 1985-09-10 Tokyo Shibaura Denki Kabushiki Kaisha Bundle of paper sheets or the like
US4546875A (en) * 1983-07-06 1985-10-15 Pauline C. Zweber Coin wrapper
EP0206806A2 (en) * 1985-06-24 1986-12-30 Xerox Corporation Copy sheet prepackaged shipping and loading wrapper for use in a high volume duplicator
US4801490A (en) * 1986-05-07 1989-01-31 Schuette James R Method and apparatus for sand blasting a design on glass
GB2250256A (en) * 1990-11-01 1992-06-03 Geoffrey Malcolm Race Bank note bundle retainer

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0629561A2 (en) * 1993-06-10 1994-12-21 Kraft Foods, Inc. Package for sliced food product
EP0629561A3 (en) * 1993-06-10 1995-02-22 Gen Foods Inc Package for sliced food product.
US20100288825A1 (en) * 2007-10-02 2010-11-18 Nestec S.A. Packaging for bar-like foodstuffs
US8469259B2 (en) * 2007-10-02 2013-06-25 Nestec S.A. Packaging for bar-like foodstuffs
WO2019052646A1 (en) * 2017-09-14 2019-03-21 Essity Hygiene And Health Aktiebolag Bundle comprising a tied stack of folded paper sheets
RU2730794C1 (en) * 2017-09-14 2020-08-26 Эссити Хайджин Энд Хелт Актиеболаг Pack containing a tied up ream of folded paper sheets
AU2017431371B2 (en) * 2017-09-14 2021-12-16 Essity Hygiene And Health Aktiebolag Bundle comprising a tied stack of folded paper sheets
US20190248556A1 (en) * 2018-02-12 2019-08-15 Maintek Computer (Suzhou) Co., Ltd Packaging module and package fixture
CN110155453A (en) * 2018-02-12 2019-08-23 名硕电脑(苏州)有限公司 Pack module and packaging fixture

Also Published As

Publication number Publication date
GB9209801D0 (en) 1992-06-24
GB9110026D0 (en) 1991-07-03

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Legal Events

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)