CA2045643A1 - Method and tape for joining paper webs - Google Patents

Method and tape for joining paper webs

Info

Publication number
CA2045643A1
CA2045643A1 CA002045643A CA2045643A CA2045643A1 CA 2045643 A1 CA2045643 A1 CA 2045643A1 CA 002045643 A CA002045643 A CA 002045643A CA 2045643 A CA2045643 A CA 2045643A CA 2045643 A1 CA2045643 A1 CA 2045643A1
Authority
CA
Canada
Prior art keywords
tape
web
paper
adhesive surface
exposed
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.)
Abandoned
Application number
CA002045643A
Other languages
French (fr)
Inventor
Sami Pitkanen
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.)
Lindell Oy AB
Boston SpA
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8527754&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2045643(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2045643A1 publication Critical patent/CA2045643A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00Changing the web roll
    • B65H19/10Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/102Preparing the leading end of the replacement web before splicing operation; Adhesive arrangements on leading end of replacement web; Tabs and adhesive tapes for splicing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING 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
    • B31FMECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00Attaching together sheets, strips or webs; Reinforcing edges
    • B31F5/06Attaching together sheets, strips or webs; Reinforcing edges by adhesive tape
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/40Adhesives in the form of films or foils characterised by release liners
    • C09J7/403Adhesives in the form of films or foils characterised by release liners characterised by the structure of the release feature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/46Splicing
    • B65H2301/4606Preparing leading edge for splicing
    • B65H2301/4607Preparing leading edge for splicing by adhesive tape
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00Additional features of adhesives in the form of films or foils
    • C09J2301/10Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/18Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet characterized by perforations in the adhesive tape

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

This invention relates to a method and tape for joining paper webs. In paper production, a paper web is accidentally broken or cut, in which case the ends are joined together by means of a tape.
In the known junction, the ends of the webs are located one on top of the other, and there is a two-sided tape therebetween. On account of faults in work, the paper does not always completely cover the tape, wherefore the junction point in the roll will adhere to the paper on top and underneath, which will result in a web rupture. This disadvantage can be avoided by using one-sided tape (1) whose protective film is divided into two parts (5, 6), whereby a butt joint can be made which involves no danger of sticking.

Description

W090/08032 PCT/FI90/000ll Method and tape for ~oining paper webs This lnventlon relates to a method for joiningpaper webs by means o~ tapes provided with a protective ilm, in accordance wlth which an adhesive surface of a first tape is exposed, said tape is attached subs-tantially transversely to a first web at a distance from the end edge of the web so that it will extend from one longitudinal edge of the web to the other, the end portion of the web between the tape and the end edge of the web i5 removed, the same steps are repeated for a second web, and the junction point between the webs is covered with a second tape. The invention also relates to a tape used in the method.
After a paper web has been produced it will in general be immediately sub~ected to re-checks wherein for example holes and impurlties are removed from the.
paper. Thereby the paper web i8 cut at the defectlve points and the end edges thus produced are ~oined together by means o at least one substantlally trans-verse, self-adheslve tape.
Accordlng to the most often employed method, the ~olning is carried out with a two-sided tape. Thereby a two-sided tape furnished with a protective film covering one side is fixed to the first paper web in the vicinity of the end edge thereof, whereafter the part of the web between the tape and the end edge of the web, the so called tail, is torn away by hand along the edge of the tape. Thereafter the protective film on the tape is removed and the other paper web is fixed on top of the tape and the end portion is torn away.
This known method has the disadvantage that the torn end edge of the paper web does not always exactly follow the edge of the adhesive surface of the tape, but the edge may have notches resulting from inaccurate WO90/0~03~ PCT/FI90/00011 tearing; on account of which some of the adhesive sur-~ace of the tape will appear. This will result in that the ~unction points on the paper web wound on a roll will adhere to the ply on top and the ply underneath.
This can be prevented for the outer side of the ~unc-tlon by covering the ~unction with a one-sided tape, but a corresponding operation cannot be carried out on the lower side of the ~unction, since it rests a~ainst the previous ply on the roll.
Thus the known method explained above has the disadvantage that the paper web will often adhere at the junction at least to the ply of the paper web underneath, wherefore the paper web may be broken when it is removed from the roll. The ~unction point is also relatively thick, since there are superimposed therein two layers of paper and one or two layers of tape. The thickness of thq web thus changes abruptly at this point, on account of which the prlnting roll m~y even be broken aQ a result of the lmpact thereupon.
~he ob~ect of this invention is to provide a method for ~oining paper webs, wherewith a ~unction is produced which involves no danger of adhesion between the paper plies and which is still equally thin as, or thinner than, the ~unction produced by the ~nown method. The method of the invention is characterized in that both paper webs are fixed end to end onto the same side of the first tape and that the adhesive surface of the first tape is exposed in steps so that prior to the - fixing of the tape to the first paper web a lon-gitudinal adhesive zone having a width smaller than the width of the adhesive surface of the tape is exposed, and the remainder of the adhesive surface is exposed after the removal of the end portion of the first web prior to the fixing of the tape to the second web.
With the method of the invention, a butt joint WO90/(~ 3~ PCTln90/00011 ,"

covered on each side with one-sided tapes whose adheslve surface faces the paper is produced, and thus no outwardly exposed adhesive surfaces which could adhe~e to the other plles of the roll can be produced at the ~unctlon point. Furthermore, ~ecause of the bu~t Joint between the paper webs the ~unction point is as thln as, or thinner than, the ~unction point produced with the previously known method, and the structure of the junction is gradually enlarging in thickness~
wherefore the ~unction point will enter and leave the printing rolls softly.
To produce the butt joint, the preferable procedure is that the adhesive zone located adjacent the longitudinal edge of the tape which is remote from the end edge of the first paper web is exposed first~
and thereafter the adhesive zone ad~acent the opposite longitudinal edge i5 exposed.
The invention al50 relates to a t~pe or Jolnlng paper webs, one side of 8aid tape having an adhesive surface covered with a removable protective film. The tape according to the lnventlon ls characterized in that the protectlve fllm comprises two longitudinal parts which can be separately removed from the adhesive surface.
In order that the protective film for the tape would be easily removable in two steps, according to one embodiment of the invention the protect~ve film has a longitudinal slot or weakening line which separates the different parts of the film. In order for both paper webs to adhere to the tape equally strongly, it is preferred that the parts of the film are substan~
tially equally broad and that the combined width there~
of corresponds to the width of the tape.
One advantageous embodiment of the invention is explained more closely in the following with reference W090/08032 PCT/~I90/000ll . s ~ 4 to the accompanying drawing wherein Figures 1 to 6 illustrate the different steps of the me~hod of the invention, Figure 7 shows a cross-section of a produced ~unctlon, Figure 8 shows a top view of a tape used in the method, and Figure 9 shows a magnified cross-section of the middle portion of the tape.
When a defective point, such as a hole or a point deviating in colour from the other parts of the web, is found in the paper web to be handled, this point is removed by cutting the paper web on both sides of the defective point, whereafter the paper webs are again ~oined by means of a tape.
The method of the invention is explained in the following with reference to Figures 1 to 6. In accord-ance wlth Fi~ure 1, one takes a one-slded tape l as shown in Flgures 8 and 9, whereof a longitudinal zone ~0 of the adhesive surface 2 is exposed, the width of said zone being substantially half of the width of the tape and being delimited by that edge of the tape which is remote from the end edge 4 of the first paper web 3.
When the tape 1 is fastened to the paper web 3 by means of the adhesive zone 2, the end portion of the paper web which is located between the end edge 4 and the edge of the adhesive zone 2 which is closest to this end edge is torn off from the paper web, whereby the situation shown in Figure 2 is created. The tearing is done by hand, and it is made possible by the portion 5 of the protective film which still partly covers the tape. The removed part of the protective film is indi cated by reference numeral 6.
When the paper web 3 is fixed to the tape 1, part 5 of the protective film is removed from the W09~/08~)3~ PCT~FI90/000l1 ?

adhesive surface 2 of the tape, whereby a second lon-gitudinal zone of ~he adhesive surface is exposed.
Thereafter the second paper web 7 is fixed to the second adhesive zone of the tape similarly as web 3, and also ln this case the end portion o~ the web is torn off as shown ln Figure 4. The accurate tearing, i.e. trimming, of the end portion is now made possible by the edge of the first torn web. Thus both ends are accurately laid face to face without gaps or over lapping paper. The result is a butt joint between the paper webs 3,7 as shown in Figure 5, wherein the end edges of the webs are face to face, fixed to the same one-s~ded tape 1. Finally, the junction is covered by an one-sided tape 8 from the s~de opposite tape 1. The tape 8 is preferably substantially narrower than tape 1. After the tapes have been cut, the junction shown in Figure 7 is ready.
The tape used in the method o~ the invention has been shown more closely ln Figures 8 and 9. Th~
adhesive surface 2 o~ the one-sided tape is covered by parts S,6 of the protective film, which in the shown embodiment are'equally broad and whose combined width corresponds to the width of the tape 1. There is a slot 9 between parts 5,6 of the protective film, on account of which parts 5,6 can be removed from the tape independently and at separate points of time. Both the slot 9 and parts 5, 6 of the protective film are conti nuous in the longitudinal direction of the tape and extend to the edges of the tape. The bearing layer of the tape is indicated with the reference numeral 10 in Figure 9.
The above presents a preferred embodime~t of the method of the invention and the tape used therein, and it is obvious that the invention may differ in its details considerably from what has been presented WO90/08032 PCT/FI90/OOOtl ~ ^ 7 ~ ' ~
~J ','~ `3 above. Thus the slot 9 may be replaced for instance by a weakening line or some other arrangement which makes lt posslble to remove the protective film in steps from the tape~ Further, it is to be noted that the tape need not be fixed exactly transverse to the paper webs, but often it ls advantageous to fix it to the webs somewhat diagonally, as has been shown ln the figures, whereby the impact on the printing roll is weakened. The inven-tlon is particularly suitable for use in connection with thin and thick paper qualities, whereby the most suitable thickness for the bearing layer 10 of the tape is selected in view of the required tensile strength and the total thickness of the ~unction, but it can also be used in connection with other equivalent mater-lals. The width of parts 5,6 of the protective film canbe varied according to need.

Claims (5)

C l a i m s :
1. A method for joining paper webs by means of tapes provided with a protective film, in accordance with which an adhesive surface (2) of a first tape (1) is exposed, said tape is attached substantially trans-versely to a first web (3) at a distance from the end edge (4) of the web so that it will extend from one longitudinal edge of the web to the other, the end portion of the web between the tape (1) and the end edge (4) of the web is removed, the same steps are repeated for a second web (7), and the junction point between the webs is covered with a second tape (8), c h a r a c t e r i z e d in that both paper webs (3, 7) are fixed end to end onto the same side of the first tape (1) and that the adhesive surface (2) of the first tape is exposed in steps so that prior to the fixing of the tape to the first paper web (3) a longitudinal adhesive zone having a width smaller than the width of the adhesive surface (2) of the tape is exposed, and the remainder of the adhesive surface is exposed after the removal of the end portion of the first web (3) prior to the fixing of the tape to the second web (7).
2. A method as claimed in claim 1, c h a r -a c t e r i z e d in that the adhesive zone located adjacent the longitudinal edge of the tape (1) which is remote from the end edge (4) of the first paper web (3) is exposed first, and thereafter the adhesive zone adjacent the opposite longitudinal edge is disposed.
3. A tape for joining paper webs, one side of said tape (1) having an adhesive surface (2) covered with a removable protective film (5, 6), c h a r a c -t e r i z e d in that the protective film comprises two longitudinal parts (5, 6) which can be separately removed from the adhesive surface.
4. A tape as claimed in claim 3, c h a r a c -t e r i z e d in that the protective film has a lon-gitudinal slot (9) or weakening line separating the different parts (5, 6) of the film from one another.
5. A tape as claimed in claim 3, c h a r a c -t e r i z e d in that the parts (5, 6) of the film are substantially equally broad and that the combined width thereof corresponds to the width of the tape (1).
CA002045643A 1989-01-19 1990-01-12 Method and tape for joining paper webs Abandoned CA2045643A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI890287A FI81997C (en) 1989-01-19 1989-01-19 Procedure and tape for joining paper webs
FI890,287 1989-01-19

Publications (1)

Publication Number Publication Date
CA2045643A1 true CA2045643A1 (en) 1990-07-20

Family

ID=8527754

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002045643A Abandoned CA2045643A1 (en) 1989-01-19 1990-01-12 Method and tape for joining paper webs

Country Status (6)

Country Link
EP (1) EP0454701A1 (en)
JP (1) JPH04503032A (en)
AU (1) AU4825290A (en)
CA (1) CA2045643A1 (en)
FI (1) FI81997C (en)
WO (1) WO1990008032A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9300707A (en) * 1993-04-26 1994-11-16 Knp Papier Bv Method of welding a paper web and an adhesive strip for use in this method.
USRE38356E1 (en) * 1994-04-26 2003-12-23 3M Innovative Properties Company Splicing method and splice using the splicing tape
CN1064019C (en) * 1994-04-26 2001-04-04 美国3M公司 Splicing tape, splicing method and splice using the splicing tape
DE29500653U1 (en) * 1995-01-17 1995-03-30 Alex Breuer GmbH, 50667 Köln Glued paper webs
US6951676B2 (en) 2000-09-25 2005-10-04 3M Innovative Properties Company Butt splicing tapes and butt splicing methods
US6899933B2 (en) 2002-09-09 2005-05-31 Permacel Splicing tape with separating portions
DE10258667A1 (en) 2002-12-13 2004-07-08 Tesa Ag Adhesive tape for joining the beginning of a new paper roll to the end of an old paper roll that is running out
US7476429B2 (en) 2003-11-03 2009-01-13 Permacel Bridge label for splicing tape
DE102006003200A1 (en) * 2006-01-24 2007-08-02 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Method for splicing material webs and splice device
DE102016119520A1 (en) * 2016-10-13 2018-04-19 Aytec Automation Gmbh Process for the preparation of strand material for the processing of seals

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1043556B (en) * 1957-08-17 1958-11-13 Heinrich Hermann Papierwarenfa Method for producing groups of sections or sections from a carrier layer for a permanent adhesive and a base covering this, such as self-adhesive labels
DE2123880A1 (en) * 1971-05-14 1972-11-23 Grossarth, Kurt, 4200 Oberhausen Method and device for applying adhesive strips
US4264401A (en) * 1976-10-22 1981-04-28 Ganz Brothers, Inc. Web splicer
US4348440A (en) * 1979-03-29 1982-09-07 Professional Tape Company, Inc. Pressure sensitive seal
JPS6081956U (en) * 1983-11-10 1985-06-06 株式会社東京自働機械製作所 Film feeding device

Also Published As

Publication number Publication date
EP0454701A1 (en) 1991-11-06
WO1990008032A1 (en) 1990-07-26
AU4825290A (en) 1990-08-13
FI890287A0 (en) 1989-01-19
FI890287L (en) 1990-07-20
FI81997C (en) 1991-01-10
FI81997B (en) 1990-09-28
JPH04503032A (en) 1992-06-04

Similar Documents

Publication Publication Date Title
US5916651A (en) Adhesive tape and method of using it
US5901919A (en) Adhesive tape and method of using it
US5390458A (en) Wallboard protective edge tape for mounting board
US5135789A (en) Label business form and method of making it
US4020842A (en) Linerless, reclosable tab stock
US5472755A (en) Splice
CA2045643A1 (en) Method and tape for joining paper webs
JP2005538211A (en) Splice tape with separation
MX2009001430A (en) Carrier tapes having tear-initiated cover tapes and methods of making thereof.
US5275344A (en) Paster tab
US5006191A (en) Method of producing a label-providing continuous business form
CA2233832C (en) Business form with patterned silicone liner
US3488248A (en) Selvage-edge roofing-and-insulation product and method of manufacture
US2089405A (en) Box stay tape
CN1740254B (en) Adhesive tape for forming joints
CA2417294C (en) Producing a roll of a flat web material
CA2459828C (en) Cover strip
FI77592C (en) Hand tools for cutting a sheet-shaped material along a line guide.
EP0968929A1 (en) Wrapping materials
EP3546401A1 (en) Adhesive tape for automatic reel change
KR20060052079A (en) Adhesive tape to form a joint during replacement of the stop reel
JP3900776B2 (en) Compound form
JP2782366B2 (en) Edge processing method of pseudo adhesive sheet
JP2005280848A (en) Easy-open bag in carton
JPH0544168B2 (en)

Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued