EP0430548A1 - Rouleau de film adhésif avec un noyau compressible - Google Patents

Rouleau de film adhésif avec un noyau compressible Download PDF

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Publication number
EP0430548A1
EP0430548A1 EP90312637A EP90312637A EP0430548A1 EP 0430548 A1 EP0430548 A1 EP 0430548A1 EP 90312637 A EP90312637 A EP 90312637A EP 90312637 A EP90312637 A EP 90312637A EP 0430548 A1 EP0430548 A1 EP 0430548A1
Authority
EP
European Patent Office
Prior art keywords
tape
core member
adhesive
core
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Withdrawn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
EP90312637A
Other languages
German (de)
English (en)
Inventor
Harold Schonhorn
Leonard D. Decoste
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.)
Kendall Co
Original Assignee
Kendall 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 Kendall Co filed Critical Kendall Co
Publication of EP0430548A1 publication Critical patent/EP0430548A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/24—Constructional details adjustable in configuration, e.g. expansible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/04—Kinds or types
    • B65H75/08—Kinds or types of circular or polygonal cross-section
    • B65H75/10—Kinds or types of circular or polygonal cross-section without flanges, e.g. cop tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/37—Tapes
    • B65H2701/377—Adhesive tape

Definitions

  • This invention relates to the art of manufacturing rolls of adhesive tape and, more particularly, to the core or hollow cylindrical member on which lengths of adhesive tape are traditionally wound.
  • Adhesive tapes are customarily prepared by forming a sheet or length of tape appreciably wider than the ultimate tape widths and then passing this tape through a slitting operation to provide a plurality of rolls of a given width, e.g. 3/4", 1", 2" (1.9, 2.5, 5.0 cms), etc.
  • the tape may be formed by first applying an adhesive layer to the desired backing to form an elongated strip of adhesive-coated backing which may, for example, be on the order of 30-50 inches (76 to 127 cms) wide x 70 or more yards (64 metres) long.
  • the resulting tape is generally wound on a master or jumbo roll and then transmitted in due course to the slitting operation.
  • baloney slicing there are basically two different ways of slitting to form a roll of tape of the desired width.
  • the tape of the desired length is wound on a single core of the same width as the tape from the feed roll for the slitting operation and is then slit, as one envisions slicing baloney, into individual rolls of the desired width.
  • this is done by passing the core on which the desired length of adhesive tape is wound through a slitting operation consisting of a plurality of slitting knives spaced apart to provide individual rolls of the desired width.
  • the web of tape from the master (feed) roll is first slit to the desired width and then taken up on individual cores of the same width which are then ready for packaging and shipment.
  • telescoping is the fanning out of overlapping portions of the tape roll beyond the width of the core on which the tape is wound. Telescoped rolls will be rejected during quality control inspection in the manufacturing process, requiring either discarding or rewinding of the roll.
  • baloney slicing method for tape manufacture telescoping is not as severe a problem due to the fact that the narrow slit tape width is not elongated prior to winding it on a core.
  • the cause of the problem is the stress recovery that the tape undergoes after slitting and winding on the core (as will be described in more detail hereinafter) and that the problem may be obviated by employing what is defined as a "collapsible core" so that the stress recovery phenomenon collapses the core rather than causing telescoping or sliding of the tape away from the core.
  • two alternate slitting processes are known, namely the "baloney slicing" technique and the shear slitting technique.
  • tape of the desired length is wound on a core whose width approximately equals the width of the adhesive web.
  • the resulting "elongated" roll of tape is then slit into a plurality of rolls of the desired width and then conveyed to the packaging and distribution stations.
  • Slitting is customarily done in a single step by passing the roll of tape through a series of parallel slitting knives spaced apart to provide the desired widths.
  • the web is first slit to the desired width and length and taken up on individual cores for packaging and distribution.
  • the core members on which the tape is wound are continuous cylindrical cores made of a semi-rigid material such as cardboard, plastic, paper, laminates thereof, etc.
  • the problem is not as severe in the baloney slicing procedure.
  • it is a very serious problem in the aforementioned alternate slicing procedure. Accordingly, while this alternate procedure has certain manufacturing advantages which may render it more cost effective than baloney slicing, the telescoping problem may preclude its use in large scale industrial manufacture.
  • Figure 2 illustrates schematically the shear slitting technique wherein a web of adhesive tape 20 from a master roll (not shown) is passed between a plurality of slitting knives and superposed rollers, only one of which knives 30 and rollers 40 are shown.
  • the severed lengths of tape 20 are then wound on individual semi-rigid cores 10 which may be defined, for purposes of understanding the present invention, as being continuous or endless cylindrical bodies, as is best seen in Figure 1.
  • the leading end of the tape web is wound onto the cores, and it is the drive action of the shaft on which the cores are placed which drives the web through the slitting knives 30.
  • This drive action pulling the tape web through the knives and superposed rollers produces a pulling action which creates tension which in turn creates a stress or stretching as the slit tape is wound onto the core.
  • the tapes are flexible to varying degrees, they possess an elastic memory. Accordingly, after being wound on their cores, they undergo stress recovery and it is this stress recovery which has been determined to cause the migration off the core, which migration is what is termed "telescoping", as seen in Figure 3.
  • the time in which telescoping occurs has been found to be directly proportional to the ambient temperature, so that increased ambient temperatures have been observed to initiate and/or accelerate roll telescoping.
  • the telescoping problem may be obviated or, at least, reduced materially to an acceptable occurrence level, by employing what may be described as a "collapsible core". If the core is collapsible, the stress recovery phenomenon will cause the core to collapse or deform rather than causing the tape to telescope or slide off the core.
  • FIG. 4 The preferred method for providing a collapsible core in accordance with this invention is illustrated in Figure 4. As shown therein, a thin section is removed along the length of the cylindrical core, providing two free ends 50, 50 in close proximity but spaced apart in what then may be defined as a discon­tinuous cyindrical core. While the section removed is shown to be substantially perpendicular to the ends, it will be appreciated that removal of the section may also be made by cutting at an angle.
  • the space provided between the ends 50, 50 should be such that, upon stress recovery, the core collapses so that the ends are substantially abutting. If the space is too great, the respective ends will not meet and the modified (discontinuous) core will be noticeable. On the other hand, if too little is removed, some telescoping may still occur since the core does not collapse sufficiently to prevent the tape from migrating off the core.
  • the exact amount of space to be provided by severing a section of the core will at least in part be dependent upon the degree of stress relaxation of the tape and this will in part be dependent upon the elasticity of the particular tape and the degree of stress or streching to which it has been subjected during manufacture. Accordingly, the space to be provided between ends 50, 50 of the discontinuous cores of this invention may vary somewhat from tape-to-tape and/or to the degree of tension applied. For this reason, it is not capable of precise numerical definition.
  • Still a further embodiment of the invention produces a collapsible effect by enveloping the outer surface of a non-severed core with foam, 60 (see Figure 5).
  • foam 60
  • flexible foam materials polyurethane, rubber latex, polyethylene and vinyl polymers.
  • the foam may be secured to the core by per se known adhesive means, e.g. a pressure-sensitive adhesive.
  • a polyurethane foam may be on the order of 1-3 mms thick.
  • Figure 6 illustrates the aesthetic result desired if the core of Figure 4 collapses to the proper degree. As shown, the edges of the tape are uniform with no telescoping and the free ends 50, 50 are substantially abutting so that the core is essentially cylindrical in configuration and appearance.
  • the core materials employed in the practice of this invention may in general be any of the semi-rigid materials heretofore employed in roll tape manufacture. Such materials will possess the rigidity and dimen­sional stability to retain their shape under the weight of the adhesive wound thereon but will have sufficient flexibility to collapse slightly under the stress
  • such cores are made from cardboard or other paper-based laminates.
  • the selection of particular core materials per se comprises no part of this invention and will accordingly be a matter of individual choice within the expected judgement of the skilled worker.
  • the adhesives and backings empoyed to prepare the tape are immaterial.
  • they will comprise a pressure-sensitive adhesive, e.g. an acrylic or rubber-­based adhesive comprising at least one natural or synthetic rubbery elastomer and one or more tackifying resin coated onto a polyolefinic, e.g. polyethylene, or other plastic sheet material.
  • a pressure-sensitive adhesive e.g. an acrylic or rubber-­based adhesive comprising at least one natural or synthetic rubbery elastomer and one or more tackifying resin coated onto a polyolefinic, e.g. polyethylene, or other plastic sheet material.
  • So-called two-faced or double-sided tapes having an adhesive layer on each side of the backing are also contemplated, as are duct tapes and the like having a reinforcing cloth material disposed between the backing and the adhesive layer.
  • pressure-sensitive adhesive rolls are by far the most common, it will be appreciated that the invention is equally applicable to other types of adhesives, e.g. heat- or water activated adhesive tapes, as well.
  • typical tapes contemplated for use with the present invention may be characterised as comprising flexible polymer films with slow stress recovery.
  • the width and length of the tapes is also immaterial. However, typically the rolls will be 0.75 to 2.5 inches (1.9 to 6.4 cms) wide and the lengths will range from about 15 to about 60 feet (4.5 to 18.3 metres).
  • a slitting device as previously described having twelve slitting knives in parallel and spaced apart to provide 3/4 inch (1.9 cms) tapes was employed in conjunction with 3/4 inch (1.9 cms) cores in order to provide twelve 3/4 inch (1.9 cm) tapes.
  • the cores in the 2, 4, 6, 8, 10 and 12 positions were conventional continuous cardboard cores; while the cores in the 1, 3, 5, 7, 9 and 11 position on the drive shaft were discontinuous cores in accordance with this invention having a 1/4 inch (6.4 mm) gap between the free ends of the cores.
  • a web of commercially available butyl rubber-based pressure-sensitive adhesive on a plastic backing was employed to form twelve rolls of tape on the 3/4 inch (1.9 cm) cores.
  • the resulting tapes were measured to determine the maximum widths from one edge of the rolls to the other [In theory, the maximum widths should be approximately the 3/4 inch (1.9 cm) of the tape and core.].
  • the maximum widths should be approximately the 3/4 inch (1.9 cm) of the tape and core.
  • those in the 4, 8, 10 and 12 positions measured over 1.5 inches (3.8 cms) indicating severe telescoping to over twice the core width.
  • the continuous core in the two position telescoped appreciably less and the continuous core in the 6 or middle position unaccountably did not telescope at all.
  • the widths increased 0.07, 0.08, 0.07, 0.05, 0.06 and 0.03 inch (1.8, 2.0, 1.8, 1.3, 1.5 and 0.8 mms), respectively, which from a commercial viewpoint were all fully acceptable rolls exhibiting no telescoping.
  • the gap between the core ends did not close completely, leaving an average gap of 0.13 inch (3.3 mm), thus indicating that a smaller gap could have been used.
  • the roll is substantially cylindrical, aesthatically pleasing, and therefore acceptable.

Landscapes

  • Adhesive Tapes (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Adhesive Tape Dispensing Devices (AREA)
EP90312637A 1989-11-27 1990-11-21 Rouleau de film adhésif avec un noyau compressible Withdrawn EP0430548A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44184689A 1989-11-27 1989-11-27
US441846 1989-11-27

Publications (1)

Publication Number Publication Date
EP0430548A1 true EP0430548A1 (fr) 1991-06-05

Family

ID=23754533

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90312637A Withdrawn EP0430548A1 (fr) 1989-11-27 1990-11-21 Rouleau de film adhésif avec un noyau compressible

Country Status (4)

Country Link
EP (1) EP0430548A1 (fr)
JP (1) JPH03243570A (fr)
AU (1) AU6687590A (fr)
CA (1) CA2030412A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5598986A (en) * 1994-01-24 1997-02-04 Matsushita Electric Industrial Co., Ltd. Component supply apparatus
GB2311505A (en) * 1996-03-28 1997-10-01 Bpb Plc A hinged tube
WO2001030679A1 (fr) * 1999-10-28 2001-05-03 Nitto Denko Corporation Rouleau de bande et son noyau d'enroulement, et procede de production de ce rouleau de bande
DE19710331C2 (de) * 1997-03-13 2001-10-04 Beiersdorf Ag Wickelkern
US7115316B1 (en) * 2000-11-13 2006-10-03 Henkel Kommanditgesellschaft Auf Aktien Anti-telescoping adhesive tape product
US7946523B2 (en) * 2006-12-12 2011-05-24 Lincoln Global, Inc. Self-adjusting payoff core
CN111705398A (zh) * 2020-06-22 2020-09-25 广州沐风信息科技有限公司 一种纺织机架
CN112225001A (zh) * 2020-12-16 2021-01-15 江苏卓高新材料科技有限公司 隔膜卷筒的使用方法
CN113716374A (zh) * 2021-08-25 2021-11-30 松扬电子材料(昆山)有限公司 快速分离离型材料的方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08301533A (ja) * 1995-04-28 1996-11-19 Asahi Kogei Kk テープ巻回体
DE602005001203T2 (de) * 2004-02-09 2007-09-20 Cryovac, Inc. Haspel und haspelanordnung zum aufwickeln von trägerbändern einer schuppenartigen kette von durch klebebänder verbundenen beuteln
TWI350269B (en) * 2006-09-11 2011-10-11 Sony Chem & Inf Device Corp Sticking method of adhesive film and a reel wound the adhesive film

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3179245A (en) * 1962-11-05 1965-04-20 Johns Manville Cores for adhesive tapes
US3433355A (en) * 1967-06-30 1969-03-18 Minnesota Mining & Mfg Tape roll and method of making the roll
DE3314489A1 (de) * 1983-04-21 1984-10-25 Continental Gummi-Werke Ag, 3000 Hannover Wickelhuelse fuer gummistreifen
FR2581633A1 (fr) * 1985-05-10 1986-11-14 Prosyn Polyane Sa Mandrin pour bobineau de film presentant une adherence de surface

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3179245A (en) * 1962-11-05 1965-04-20 Johns Manville Cores for adhesive tapes
US3433355A (en) * 1967-06-30 1969-03-18 Minnesota Mining & Mfg Tape roll and method of making the roll
DE3314489A1 (de) * 1983-04-21 1984-10-25 Continental Gummi-Werke Ag, 3000 Hannover Wickelhuelse fuer gummistreifen
FR2581633A1 (fr) * 1985-05-10 1986-11-14 Prosyn Polyane Sa Mandrin pour bobineau de film presentant une adherence de surface

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5598986A (en) * 1994-01-24 1997-02-04 Matsushita Electric Industrial Co., Ltd. Component supply apparatus
GB2311505A (en) * 1996-03-28 1997-10-01 Bpb Plc A hinged tube
GB2311505B (en) * 1996-03-28 2000-01-19 Bpb Plc Tube
DE19710331C2 (de) * 1997-03-13 2001-10-04 Beiersdorf Ag Wickelkern
US6390411B1 (en) 1997-03-13 2002-05-21 Beiersdorf Ag Cores formed by at least three segments having obiformal curved surfaces
WO2001030679A1 (fr) * 1999-10-28 2001-05-03 Nitto Denko Corporation Rouleau de bande et son noyau d'enroulement, et procede de production de ce rouleau de bande
US7115316B1 (en) * 2000-11-13 2006-10-03 Henkel Kommanditgesellschaft Auf Aktien Anti-telescoping adhesive tape product
US7946523B2 (en) * 2006-12-12 2011-05-24 Lincoln Global, Inc. Self-adjusting payoff core
CN111705398A (zh) * 2020-06-22 2020-09-25 广州沐风信息科技有限公司 一种纺织机架
CN112225001A (zh) * 2020-12-16 2021-01-15 江苏卓高新材料科技有限公司 隔膜卷筒的使用方法
CN112225001B (zh) * 2020-12-16 2021-04-27 江苏卓高新材料科技有限公司 隔膜卷筒的使用方法
CN113716374A (zh) * 2021-08-25 2021-11-30 松扬电子材料(昆山)有限公司 快速分离离型材料的方法

Also Published As

Publication number Publication date
CA2030412A1 (fr) 1991-05-23
AU6687590A (en) 1991-05-30
JPH03243570A (ja) 1991-10-30

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