GB2422593A - Web-winding core - Google Patents
Web-winding core Download PDFInfo
- Publication number
- GB2422593A GB2422593A GB0502078A GB0502078A GB2422593A GB 2422593 A GB2422593 A GB 2422593A GB 0502078 A GB0502078 A GB 0502078A GB 0502078 A GB0502078 A GB 0502078A GB 2422593 A GB2422593 A GB 2422593A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- web
- core
- covering
- core according
- 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- Withdrawn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
- 238000004804 winding Methods 0.000 title claims abstract description 19
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000123 paper Substances 0.000 claims abstract description 8
- 239000011152 fibreglass Substances 0.000 claims abstract description 6
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- 239000011111 cardboard Substances 0.000 claims abstract description 4
- 229920001971 elastomer Polymers 0.000 claims abstract description 4
- 239000000806 elastomer Substances 0.000 claims abstract description 4
- 239000004744 fabric Substances 0.000 claims abstract description 4
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 4
- 239000005011 phenolic resin Substances 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 11
- 239000013536 elastomeric material Substances 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 abstract 1
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 244000299788 selfheal Species 0.000 description 1
- 235000008113 selfheal Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B65H75/04—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
- B65H2701/50—Storage means for webs, tapes, or filamentary material
- B65H2701/51—Cores or reels characterised by the material
- B65H2701/514—Elastic elements
Landscapes
- Storage Of Web-Like Or Filamentary Materials (AREA)
Abstract
A web-winding core comprises a rigid cylinder 1 having an elastomeric 2 covering disposed on at least a longitudinally central external part of the cylinder. A covering 4 may also be applied to the interior of the cylinder. The elastomer may be self-healing and may be a urethane. The elastomeric covering may have a Shore A hardness in excess of 60. The cylinder may be fabricated from Glass Reinforced Plastics (GRP), aluminium, steel, cardboard, polyvinyl chloride or fabric impregnated with a phenolic resin. The cylinder may be adapted so as to engage with a rotational driving member. In use, the web winding core is particularly suited to use with a web of a paper product.
Description
WEB-WINDING CORE
Background to the Invention
1] This invention relates to a web-winding core.
[00021 In the conventional manufacture of a product such as paper in the form of a web, the web is mechanically wound onto a rotating core member. Covers are commonly applied to web-winding cores to improve the performance of the winding process. The use of a cover diminishes the occurrence of damage to the web during winding, thereby reducing the necessity to discard deformed webs.
Deformable covers can accommodate irregularities in the web.
3] A number of different polymeric covers for core members have been described.
4] US-A-5,857,643 shows a core for winding a web of knurl-edged base material for photographic film. The core comprises a rigid cylinder having a soft deformable cover and harder end members for the knurled margins of the material.
5] EP-A-1,211,214 describes a core comprising a hollow cylinder covered by a water-resistant rigid sleeve of polypropylene, polystyrene, nylon, acrylonitrile butadiene styrene or a combination thereof. The sleeve has a hard polished outer surface that may be grinded down and repolished for reuse if necessary.
6] Web-winding cores are typically installed as a final component of a machine on which a paper product such as toilet tissue is manufactured. When a suitable length of material has been wound on a core, the core is detached from the machine and transferred to a separate location at which the web is unwound and processed further, e.g. divided longitudinally. Transfer of the heavy core requires a forklift, for example, and it is easy to damage the core.
Summary of the Invention
[00071 With the aim of providing a particularly robust core, the invention provides a web-winding core comprising a rigid cylinder and an elastomeric covering, the covering disposed at least on a longitudinally central and external part of said cylinder.
[00081 The outer surface of an existing core is hard and smooth. When unwinding a web from a core, it is usual to leave a number of turns of the material on the core to ensure consistent quality of the unwound web. These turns form a remnant, which is then cut off the core, e.g. manually; with a hard outer core surface the blade tends to deviate from the axial direction and there is a risk of injury. An elastomeric covering alleviates the risk and aids the cutting of the remnant.
[00091 If the covering is of a "self-healing" elastomer such as urethane, cuts therein will self heal. In prior art cores, such cuts mar the surface and create jags that may tear a web on a subsequent winding operation.
0] The rigid cylinder may be of a material typically but not exclusively selected from glass-reinforced plastics, fabric impregnated with a phenolic resin, aluminum, steel and cardboard.
1] In an embodiment of the invention, the interior of the core also comprises a layer of elastomeric material.
2] The core may comprise engaging means at at least one end of the core for engaging a rotational driving member of a winding apparatus.
3] The invention is suitable for winding webs of various materials, but is particularly apt for winding paper products, including tissue, such as toilet tissue, and label stock.
4] The invention additionally provides a web-winding core as defined above, bearing a wound length of a paper product.
Brief Description of the Drawing
5] Particular embodiments of the invention will now be described by way of example only, with reference to the single figure of the drawing, which shows a transverse cross section through a core according to the invention.
Detailed Description of Particular Embodiments
6] The core shown in the drawing comprises a rigid hollow cylinder I of glass-reinforced plastics material having a thickness of about 6mm.
[00171 A layer of urethane 2, e.g. 2-3 mm thick, is applied to the external surface of the cylinder 1. Suitable methods of applying the urethane layer include pouring, calendaring and application of the layer as a self-adhesive strip.
8] The urethane layer 2 is self-healing. It is selected to have a Shore A hardness of at least approximately 60 and thus to resist abrasion due to rough handling. The Shore A hardness may, for example, be between 60 and 100, and more particularly between 70 and 90.
[00191 As shown in the drawing, the outer surface of the urethane layer 2 has a knurled configuration. For example, there may be grooves 3 in the surface which intersect, e.g. at right angles, when the length of the core is viewed. This configuration may assist in picking up the end of a web of paper-based product.
For thermoplastic urethane the pattern is embossed by means of a hot tool, whereas for thermosetting urethane, the pattern can be formed by cold grinding.
However the knurled configuration is optional and we have found that a smooth outer surface is effective for certain paper-based webs.
[00201 An inner urethane layer 4 is formed on the inner surface of the cylinder 1.
Methods of application of the inner layer 4 include spraying, screeding, application via an adhesive carrier film that is adhered to the interior of the cylinder, casting in situ, mechanical fastening and combinations of these methods. The inner layer avoids damage to the core when the core is handled, for example by a forklift.
[00211 The core of the invention is optionally provided with engaging means at its ends for engaging driving machinery, which rotates the core about its axis at high speed.
[00221 Alternative materials for the cylinder 1 include strong fabric such as Keviar reinforced with a phenolic resin, polyvinyl chloride, aluminum, steel and cardboard. It will be appreciated that the thickness of the cylinder will vary if a material other than glass-reinforced plastics is used.
3] Elastomers other than urethane can be used for the outer layer and the optional inner layer.
[00241 Cores according to the invention can be reused thousands of times even when rotating at high speed. The cores have enhanced acoustic and vibrational properties. This is particularly important before winding commences and the bare core is pressed against a rotating drum of a papermaking machine.
[00251 All forms of the verb "to comprise" in this specification and the appended claims should be understood as forms of the verbs "to consist of" and/or "to include".
Claims (9)
1. A core for winding a web of flexible material, comprising a rigid cylinder and an elastomeric covering, the covering disposed at least on a lotigitudinally central and external part of said cylinder.
2. A core according to claim 1, wherein the covering is of a self-healing elastomer.
3. A core according to claim 2, wherein the covering is of urethane.
4. A core according to claim 1, 2 or 3, wherein the rigid cylinder is of glass- reinforced plastics.
5. A core according to claim 1, 2 or 3, wherein the rigid cylinder is of a material selected from fabric impregnated with a phenolic resin, polyvinyl chloride, aluminum, steel and cardboard.
6. A core according to any preceding claim, wherein the covering is knurled.
7. A core according to any preceding claim, wherein the interior of the cylinder also bears a layer of elastomeric material.
8. A core according to any preceding claim, comprising engaging means at at least one end thereof, for engaging a rotational driving member of a winding apparatus.
9. A core according to any preceding claim, bearing a wound length of a paper product.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0502078A GB2422593A (en) | 2005-02-01 | 2005-02-01 | Web-winding core |
GB0714588A GB2439658B (en) | 2005-02-01 | 2006-01-27 | Web-winding core |
PCT/GB2006/000287 WO2006082374A1 (en) | 2005-02-01 | 2006-01-27 | Web-winding core |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0502078A GB2422593A (en) | 2005-02-01 | 2005-02-01 | Web-winding core |
Publications (2)
Publication Number | Publication Date |
---|---|
GB0502078D0 GB0502078D0 (en) | 2005-03-09 |
GB2422593A true GB2422593A (en) | 2006-08-02 |
Family
ID=34307806
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0502078A Withdrawn GB2422593A (en) | 2005-02-01 | 2005-02-01 | Web-winding core |
GB0714588A Expired - Fee Related GB2439658B (en) | 2005-02-01 | 2006-01-27 | Web-winding core |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0714588A Expired - Fee Related GB2439658B (en) | 2005-02-01 | 2006-01-27 | Web-winding core |
Country Status (2)
Country | Link |
---|---|
GB (2) | GB2422593A (en) |
WO (1) | WO2006082374A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT11137U3 (en) * | 2009-12-22 | 2010-12-15 | Sauer Austria Kg Druckwalzenfa | WINDING SLEEVE WITH COATING |
CN103415456A (en) * | 2011-03-11 | 2013-11-27 | 日东电工株式会社 | Film winding core, and wound film body using same |
FR3009292A1 (en) * | 2013-07-30 | 2015-02-06 | Hegotech | CHUCK HAVING AN EXTERNAL WALL DEFORMABLE RADIALLY |
US9346652B2 (en) | 2011-03-11 | 2016-05-24 | Nitto Denko Corporation | Film winding core, and wound film body using same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008025580A1 (en) * | 2008-05-28 | 2009-12-03 | Tesa Se | Winding core for producing wound adhesive tape, has compression layer formed in carrier and provided with wave-shaped cross-section, where outer region of carrier is joined to upper side of compression layer |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB367780A (en) * | 1930-11-17 | 1932-02-17 | British Celanese | Improvements in or relating to yarn packaging devices |
US3396918A (en) * | 1967-01-09 | 1968-08-13 | Goodyear Tire & Rubber | Expandable adapter |
US3522700A (en) * | 1968-10-23 | 1970-08-04 | Leesona Corp | Method and apparatus for processing yarn |
US4219274A (en) * | 1978-07-27 | 1980-08-26 | Times Fiber Communications, Inc. | Apparatus and method for packaging optical fibers |
US4695008A (en) * | 1984-09-07 | 1987-09-22 | Henry Dabrowski | Reeling mandrel for winding metal strips |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4006866A (en) * | 1975-05-02 | 1977-02-08 | Rockwell International Corporation | Acrylic modified urethane bobbin finish |
DE3610557C2 (en) * | 1986-03-27 | 1994-06-16 | Schoeller Felix Jun Papier | Winding core for web-shaped base paper for coating with photographic emulsions |
EP0358406A3 (en) * | 1988-09-05 | 1991-01-30 | Sanyo Chemical Industries, Ltd. | Use of a polyol as a structural component of a polyurethane resin and method of forming an article |
JP2552945B2 (en) * | 1990-08-09 | 1996-11-13 | 富士写真フイルム株式会社 | Web winding core |
DE9305304U1 (en) * | 1993-04-07 | 1993-06-17 | BASF Magnetics (Holding) GmbH, 67059 Ludwigshafen | Winding core with elastic surface |
DE69603913T2 (en) * | 1995-06-07 | 2000-02-24 | Eastman Kodak Co., Rochester | Sleeve for winding sheet-like, deformable material |
JPH0958935A (en) * | 1995-08-21 | 1997-03-04 | Fuji Photo Film Co Ltd | Core for heat treatment of film |
DE19650458A1 (en) * | 1995-12-13 | 1997-06-19 | Barmag Barmer Maschf | Durable spool for winding endless filament fibres |
JP3029814B2 (en) * | 1997-05-23 | 2000-04-10 | 西武ポリマ化成株式会社 | Rolls for winding paper |
-
2005
- 2005-02-01 GB GB0502078A patent/GB2422593A/en not_active Withdrawn
-
2006
- 2006-01-27 GB GB0714588A patent/GB2439658B/en not_active Expired - Fee Related
- 2006-01-27 WO PCT/GB2006/000287 patent/WO2006082374A1/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB367780A (en) * | 1930-11-17 | 1932-02-17 | British Celanese | Improvements in or relating to yarn packaging devices |
US3396918A (en) * | 1967-01-09 | 1968-08-13 | Goodyear Tire & Rubber | Expandable adapter |
US3522700A (en) * | 1968-10-23 | 1970-08-04 | Leesona Corp | Method and apparatus for processing yarn |
US4219274A (en) * | 1978-07-27 | 1980-08-26 | Times Fiber Communications, Inc. | Apparatus and method for packaging optical fibers |
US4695008A (en) * | 1984-09-07 | 1987-09-22 | Henry Dabrowski | Reeling mandrel for winding metal strips |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT11137U3 (en) * | 2009-12-22 | 2010-12-15 | Sauer Austria Kg Druckwalzenfa | WINDING SLEEVE WITH COATING |
CN103415456A (en) * | 2011-03-11 | 2013-11-27 | 日东电工株式会社 | Film winding core, and wound film body using same |
EP2684828A1 (en) * | 2011-03-11 | 2014-01-15 | Nitto Denko Corporation | Film winding core, and wound film body using same |
EP2684828A4 (en) * | 2011-03-11 | 2014-09-10 | Nitto Denko Corp | Film winding core, and wound film body using same |
US9346652B2 (en) | 2011-03-11 | 2016-05-24 | Nitto Denko Corporation | Film winding core, and wound film body using same |
FR3009292A1 (en) * | 2013-07-30 | 2015-02-06 | Hegotech | CHUCK HAVING AN EXTERNAL WALL DEFORMABLE RADIALLY |
Also Published As
Publication number | Publication date |
---|---|
GB0502078D0 (en) | 2005-03-09 |
GB2439658A (en) | 2008-01-02 |
WO2006082374A1 (en) | 2006-08-10 |
GB0714588D0 (en) | 2007-09-05 |
GB2439658B (en) | 2008-10-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2422593A (en) | Web-winding core | |
EP1723065B1 (en) | Winding core and associated method | |
EP0749906B1 (en) | Method of handling thin tapes and films | |
JPH09100068A (en) | Core of web | |
US9782904B2 (en) | Apparatus and method for cutting facestock | |
JP2011184152A (en) | Method of winding web article, and roll article | |
US7503519B2 (en) | Winder roll starting apparatus with pressure device for thick webs | |
US20030047097A1 (en) | Printing blanket sleeve with replaceable printing surface | |
EP3281897B1 (en) | Slitter-winder for winding of pulp webs | |
JP2010179989A (en) | Sheet winding roller and method for manufacturing the same | |
CA2636423C (en) | A reeling shaft of a fibre-web machine reeler | |
US5497549A (en) | Process for the production of winding core rolls | |
CA3092665A1 (en) | Core with improved chuck interaction | |
US20050258299A1 (en) | Core for aluminum sheet | |
KR101541767B1 (en) | A core for winding film web | |
US10793393B2 (en) | Fibrous web winding and unwinding reel | |
JP6363001B2 (en) | Lamination body winding method and winding roll | |
JP6408347B2 (en) | Web winding method | |
JP3568282B2 (en) | Rubber roller | |
JPH10325093A (en) | Wind-up roll for paper-making | |
KR890001780B1 (en) | A reader roll for the rolling apparatus of a paper cutting machine | |
JPH09141330A (en) | Roll for giving tension | |
TWI404518B (en) | Production method of dust drum | |
EP1176110A3 (en) | Method and winding core for avoiding winding errors in a material web | |
JP2017186120A (en) | Core around which film is wound |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |