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WO1997011841A1 - Decoupage d'etiquettes - Google Patents

Decoupage d'etiquettes Download PDF

Info

Publication number
WO1997011841A1
WO1997011841A1 PCT/GB1996/002370 GB9602370W WO9711841A1 WO 1997011841 A1 WO1997011841 A1 WO 1997011841A1 GB 9602370 W GB9602370 W GB 9602370W WO 9711841 A1 WO9711841 A1 WO 9711841A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting
web
label
laser
label stock
Prior art date
Application number
PCT/GB1996/002370
Other languages
English (en)
Inventor
Timothy Platt White
Original Assignee
Timothy Platt White
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 Timothy Platt White filed Critical Timothy Platt White
Priority to AU70905/96A priority Critical patent/AU7090596A/en
Publication of WO1997011841A1 publication Critical patent/WO1997011841A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
    • B23K26/0673—Dividing the beam into multiple beams, e.g. multifocusing into independently operating sub-beams, e.g. beam multiplexing to provide laser beams for several stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/083—Devices involving movement of the workpiece in at least one axial direction
    • B23K26/0838—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt
    • B23K26/0846—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt for moving elongated workpieces longitudinally, e.g. wire or strip material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
    • B31D1/02—Multiple-step processes for making flat articles ; Making flat articles the articles being labels or tags
    • B31D1/021—Making adhesive labels having a multilayered structure, e.g. provided on carrier webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
    • B31D1/02—Multiple-step processes for making flat articles ; Making flat articles the articles being labels or tags
    • B31D1/026—Cutting or perforating

Definitions

  • This invention relates to apparatus for and methods of cutting labels out of a web of label stock.
  • a very widely used method for the manufacture of self-adhesive labels comprises supplying to a converting machine a web of self-adhesive label stock laminated to a silicon coated release liner.
  • the labels are printed as required and then subjected to a die-cutting step where the required external shape of each label is cut into the label stock, but not the release liner, in register with the printed matter.
  • a die having cutting edges appropriately configured for the label shape is employed for this purpose, the edges projecting from the die surface to a very small extent so that the liner is not cut.
  • the label- cutting die is in the form of a drum which co-operates with a backing roller, the web of printed label stock passing through the nip defined by the drum and the backing roller.
  • the waste label stock is stripped away from the liner, leaving a series of labels releasably adhered to the liner, ready for application to products.
  • the liner carrying the labels is reeled until required for use, though sometimes the liner is transferred directly to a labelling machine.
  • the manufacture of a die for use in a die-cutting process as described above is a highly complex and skilled operation, in order that the die may accurately cut through the label stock, and yet not cut through the liner. Errors in the manufacture of the die will result either in imperfectly cut labels, or m the liner itself being cut. In the former case, the labels may be stripped away with the waste label stock matrix, whereas in the latter case the liner is likely to break during subsequent handling steps, leading to down-time, wastage and loss of productivity.
  • a further problem associated with the die-cutting step is that any accumulation of dust or other material on the die will lead to imperfect cutting, since the die will tend to tip slightly, to one side. Moreover, it is also known for the silicon coating on the liner to be of a non-uniform thickness and again this can lead to die-tipping and consequent imperfect cutting. Further problems will result should the label stock itself not be of a constant thickness, or if the thickness of the labeJ stock changes from one reel to another.
  • the manufacture of a die is an extremely expensive operation, in order that the required die-cutting qualities may be achieved. Moreover, such a die is wholly inflexible, in that once the shape of a label has been decided, it cannot thereafter be changed: if a differently shaped label is required, then a new die must be manufactured, together with the attendant cost.
  • the present invention aims at reducing those and providing apparatus and a method which is relatively cheap to implement and which allows changes in label shapes easily to be accommodated, along with reliable label cutting.
  • apparatus for cutting labels out of a web of label stock laminated with a release liner comprises means to feed the web along a path through a cutting station, a plurality of cutting heads disposed at the cutting station and arranged transversely across the width of said path, at least one laser arranged to supply a light beam to each of said cutting heads, each cutting head having focussing means for focussing a supplied beam on to the label stock at the cutting station and deflection means to control the point on the label stock where the focussed beam is incident thereon, and control means for all of the cutting heads to cause each light beam incident on the label stock to describe a pre-determined trace.
  • a method for cutting labels from a web of label stock laminated with a release liner and employing apparatus having a plurality of cutting heads disposed at a cutting station and arranged transversely across a path of advancement of the web through the cutting station, at least one laser arranged to supply a light beam to each of said cutting heads, each cutting head having focussing means for focussing a supplied beam on to the label stock at the cutting station and deflection means to control the point on the label stock where the focussed beam is incident, in which method the web of label stock is advanced through the cutting station, the or each laser is energised to supply a light beam to each of the cutting heads, and the focussing means and the deflection means are dynamically controlled to cause the beam from each cutting head to describe on the advancing label stock a part of the required label outline shape.
  • This process allows the use of a sufficiently powerful laser to ensure cutting of the label shape, right across the web, and there will of course be no cutting of the release liner, as that" is separated from the label stock.
  • the problem identified above has been solved by providing a plurality of cutting heads each of which is able to cover only a relatively small area of the web out of which a label is to be cut. In this way, sufficient control of the cutting depth of the laser beam from each cutting head may be achieved, since the variation in the distance between the cutting head and any point in the area covered by that cutting head on the web is relatively small, and the focus of the laser beam may be accurately maintained.
  • the control means will normally include a computer running a program in which a required label shape has been loaded, the computer providing appropriate outputs to the cutting heads to cause the traces of the incident light beams to describe the required label shape on the label stock.
  • a computer may be a dedicated process controller, or could comprise a conventional high performance PC.
  • a digitiser is associated with the computer, whereby a required label shape may be loaded into the program by scanning and digitising a graphical representation of the required label shape. If then the label shape is to be changed, this may easily be done by redrawing the label, and then scanning that new drawing.
  • the label shape could be programmed into the computer by conventional programming techniques.
  • a converting machine incorporating apparatus of this invention may operate on a continuous basis - that is to say, the web of laminated label stock and liner moves continuously, rather than step-by-step.
  • the computer may synchronise the operation of the cutting heads to the advancement of the web, in order that the trace on the web of the beams from all of the cutting heads accurately describes the required label shape.
  • the web could be advanced in steps, with the cutting process being appropriately controlled.
  • the number of cutting heads required will depend upon the width of the web from which labels are to be cut, and also the speed of advancement of the web through the cutting station. For example, in a typical application, there may be six heads arranged in two groups of three, each group extending across the width of the web. In this way, an area of typically 400mm x 270mm may be covered by the cutting heads. In another embodiment, two cutting heads may be sufficient, arranged side-by-side across the web.
  • a single laser may be provided, to direct to each cutting head a laser beam.
  • the beam from the laser may be divided by conventional beam division techniques, so that a beam portion is supplied simultaneously to each cutting head.
  • the beam may be directed successively to each cutting head, in a time-division multiplexed manner.
  • Yet another possibility would be to provide more than one laser; depending upon the number of cutting heads, there may be an individual laser for each cutting head, or each laser may service more than one cutting head.
  • Each cutting head may be similar to the others, and of a known form for use with a laser, for causing controlled deflection of a laser beam.
  • each cutting head may include a reflecting surface mounted for movement under the control of a magnetic or electrostatic field generated dependent upon the path that the laser beam is to follow, to cut out the required label outline, or part thereof.
  • the magnetic or electrostatic field is generated under the control of a computer into which the required label shape (or part thereof) has been loaded.
  • the or each laser source may comprise any of a number of low cost laser devices the power of which can be controlled.
  • the most preferred source is a C ⁇ ->2 laser, though for some applications, a YAG or other laser source could be employed.
  • FIG 1 shows diagrammatically a first embodiment of laser label cutting apparatus arranged in accordance with the invention
  • Figure 2 diagrammatically illustrates a second embodiment of laser label cutting apparatus of this invention
  • FIG 3 diagrammatically illustrates a third embodiment of such apparatus.
  • the web 10 comprises self-adhesive label stock 11 laminated to a silicon coated release liner 12 (on the underside, on the right-hand side of the drawing).
  • the web 10 is drawn from a reel thereof and is fed along a path in the direction of arrow A so as to be supplied to a cutting station 13. Rather than being drawn directly from a reel, the web may arrive at the cutting station following conversion of the web into a plurality of labels 14 printed thereon.
  • the web passes over a vacuum clamp 15 while the pre-printed labels are cut out of the label stock 11 , before the web passes through a nip 16 defined by stripping rolls 17 and 18.
  • the waste label stock matrix 19 is reeled for disposal, while the liner 12 carrying individual labels 20 is separately reeled for subsequent use in a labelling machine.
  • the labels are cut out of the label stock by means of a plurality of laser cutting heads 21 , arranged in two groups extending across the width of the web.
  • a CO2 laser 22 supplies a beam 23 to a beam splitting device 24, the output of which comprises six separate beam portions 25, one such beam portion supplied to each laser cutting head 21.
  • each laser cutting head there is provided an active lens allowing dynamic focussing of the beam on to the label stock 11 , and also galvanometer-controlled mirrors to provide deflection of the beam from the true optical axis of the cutting head. Both the active lens and the mirrors of each cutting head are under the control of a computer 26, running an appropriate program.
  • Laser cutting heads of the kind described above are known per se, usually as a part of a laser marker, for example for the marking of alpha-numerics, logos, graphics and other special characters on articles supplied to such a marker. For that application, the power of the laser must closely be controlled in order not to damage the article being marked.
  • the area which may be covered by such a single laser cutting head is relatively small and so a known form of laser marker would not be suitable for the cutting of labels from a web of label stock, as described above, since the marker could not cover a sufficiently large area of the web 10 to define a significant part, or even the overall outline of a required label.
  • the computer may be loaded with an image of the label shape to be cut by means of a scanner 27 which produces a digitised image of a graphical represent ⁇ ation of the required label shape. Then, the computer may control the operation of the cutting heads 21 such that these describe the required shape for each label to be cut from the stock, and synchronise the operation of the cutting heads with the advancement of the web. Should it be required to change the label shape, this may easily be achieved merely by scanning a graphical representation of the new label shape.
  • each label shown in Figure 1 are relatively small and it might be possible for the entire shape of each label to be defined by only two cutting heads, arranged length wise of the web 10. More typically, there may be only one or two labels across the width of the label stock 11. In such a case, each laser cutting head defines a relatively small part of the entire label outline. In this way, the change in length of the laser beam, from the cutting head to the point where the beam impinges on and cuts the label stock, will be very small, and so the focus of the beam may be maintained. Consequently, the power of the laser may remain constant and the cutting of the label stock may be achieved reliably, without cutting of the release liner 12.
  • Figure 2 illustrates a modified form of laser cutting apparatus as described above, with certain parts omitted for clarity. Parts common with those of Figure 1 are given like reference numerals and will not be described again here.
  • each cutting head 21 is provided with an individual laser source 22.
  • Each laser source directs its beam to a deflection mirror 29, whereby a beam enters the cutting head 21 for appropriate deflection under the control of the computer, to define the appropriate part of the overall label outline.
  • Figure 3 illustrates yet another arrangement, again corresponding generally to that of Figure 1 , but simplified in that only two laser sources 22 are provided, each of which directs a beam to a respective cutting head 21.
  • the two cutting heads are disposed across the path of advancement of the web 10, whereby each may define a part only of the outline of a label to be cut from the web.
  • the web may be advanced in a series of steps for each label to be cut, each cutting head then performing a cutting action when the web is stationary.
  • the embodiments of label cutting apparatus described above are easy to use and lend themselves to short production runs, as well as large volume label production.
  • the costs associated with the setting up of the equipment to cut a particular label shape are very small as compared to the conventional technology of employing a die expressly configured for the required label shape.
  • the cutting characteristics of each cutting head may be adjusted to suit variables such as the nature of the label stock and its thickness, in order to achieve reliable cutting without causing significant damage to the release liner.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Laser Beam Processing (AREA)

Abstract

Un appareil, et un procédé, de découpage d'étiquettes autocollantes (14) pré-imprimées sur une matière (14) à étiquette stratifiée avec une feuille de décollage (12), comprend une pluralité de têtes coupantes (21) dont chacune est commandée par un ordinateur stockant une représentantion numérisée de la forme de l'étiquette voulue. Chaque tête coupante (21) reçoit un faisceau laser (25) et sert à focaliser et à défléchir ce faisceau sur la bande (10) de matière d'étiquette. La puissance du faisceau laser est commandée de manière à ce que le faisceau effectue une coupe uniquement à travers la matière d'étiquette (11) et non la feuille de décollage (12) formant un stratifié avec ladite matière. Chaque tête coupante (21) est configurée pour ne couvrir qu'une partie de la largeur totale de la matière d'étiquette, de manière à n'avoir que de faibles variations dans la longueur du chemin allant du faisceau laser de la tête coupante (21) à la matière d'étiquette (11), permettant ainsi d'obtenir un bon réglage de netteté et de puissance de coupe du faisceau.
PCT/GB1996/002370 1995-09-26 1996-09-25 Decoupage d'etiquettes WO1997011841A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU70905/96A AU7090596A (en) 1995-09-26 1996-09-25 Cutting of labels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9519603.6 1995-09-26
GBGB9519603.6A GB9519603D0 (en) 1995-09-26 1995-09-26 Cutting of labels

Publications (1)

Publication Number Publication Date
WO1997011841A1 true WO1997011841A1 (fr) 1997-04-03

Family

ID=10781285

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1996/002370 WO1997011841A1 (fr) 1995-09-26 1996-09-25 Decoupage d'etiquettes

Country Status (3)

Country Link
AU (1) AU7090596A (fr)
GB (1) GB9519603D0 (fr)
WO (1) WO1997011841A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999024213A1 (fr) * 1997-11-08 1999-05-20 Lts Lohmann Therapie-Systeme Ag Procede pour decouper au faisceau laser des stratifies s'appliquant sur la peau
WO1999026217A1 (fr) * 1997-11-15 1999-05-27 The House Of Questa Ltd. Fabrication de timbres
GB2332637A (en) * 1997-12-25 1999-06-30 Matsushita Electric Industrial Co Ltd Apparatus and method for processing sheet materials
ES2143415A1 (es) * 1998-04-30 2000-05-01 Suprametal S A Procedimiento para la fabricacion de signos de identificacion.
NL1011603C2 (nl) * 1999-03-19 2000-09-27 Rockwool Lapinus Bv Zelfklevende isolatiedeken.
DE102010035701A1 (de) 2009-08-27 2011-04-07 Roland Weber Schneidvorrichtung für TDS und ODF
WO2011032073A3 (fr) * 2009-09-14 2011-05-05 Primera Technology, Inc. Système de finition d'étiquettes imprimées à l'aide de dispositifs de découpe x-y multiples
US8008597B2 (en) * 2006-07-18 2011-08-30 Canon Kabushiki Kaisha Sheet post-processing apparatus
ES2372836A1 (es) * 2010-01-11 2012-01-27 Grup Andreu Gombau Sl Bobina de material autoadhesivo y método para la fabricación de etiquetas autoadhesivas.
US20140031189A1 (en) * 2012-07-30 2014-01-30 Miyakoshi Printing Machinery Co., Ltd. Method of half-cut cutout processing of label paper
EP3523084A1 (fr) * 2016-10-04 2019-08-14 Soremartec S.A. Traitement par laser de matériaux d'emballage
CN115026907A (zh) * 2021-03-05 2022-09-09 塞托普拉特胶带技术有限公司 用于制造胶粘带的方法和设备
US20230185008A1 (en) * 2019-10-03 2023-06-15 American Polarizers, Inc. Mechanized Process For Improved Removal Of Elements Such As Labels From An Adhesive Film During Manufacture

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987000121A1 (fr) * 1979-04-09 1987-01-15 Avery International Corporation Etiquette dont le support presente des lignes d'entailles discontinues et procede de production
WO1994014605A1 (fr) * 1992-12-23 1994-07-07 Graydon Wesley Nedblake Systeme de production d'etiquettes a partir d'un ruban

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987000121A1 (fr) * 1979-04-09 1987-01-15 Avery International Corporation Etiquette dont le support presente des lignes d'entailles discontinues et procede de production
WO1994014605A1 (fr) * 1992-12-23 1994-07-07 Graydon Wesley Nedblake Systeme de production d'etiquettes a partir d'un ruban

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6414264B1 (en) 1997-11-08 2002-07-02 Lts Lohmann Therapie-Systeme Ag Laser beam cutting method for cutting laminates for applying to the skin
DE19749525C1 (de) * 1997-11-08 1999-06-10 Lohmann Therapie Syst Lts Laserstrahl-Schneideverfahren zum Schneiden von Laminat zur Applikation auf die Haut und Fixiervorrichtung
WO1999024213A1 (fr) * 1997-11-08 1999-05-20 Lts Lohmann Therapie-Systeme Ag Procede pour decouper au faisceau laser des stratifies s'appliquant sur la peau
WO1999026217A1 (fr) * 1997-11-15 1999-05-27 The House Of Questa Ltd. Fabrication de timbres
SG83695A1 (en) * 1997-12-25 2001-10-16 Matsushita Electric Industrial Co Ltd Apparatus and method for processing
US6303902B1 (en) 1997-12-25 2001-10-16 Matsushita Electric Industrial Co., Ltd. Apparatus and method for processing
GB2332637B (en) * 1997-12-25 2000-03-08 Matsushita Electric Industrial Co Ltd Apparatus and method for processing
GB2332637A (en) * 1997-12-25 1999-06-30 Matsushita Electric Industrial Co Ltd Apparatus and method for processing sheet materials
ES2143415A1 (es) * 1998-04-30 2000-05-01 Suprametal S A Procedimiento para la fabricacion de signos de identificacion.
NL1011603C2 (nl) * 1999-03-19 2000-09-27 Rockwool Lapinus Bv Zelfklevende isolatiedeken.
WO2000057101A1 (fr) * 1999-03-19 2000-09-28 Rockwool Lapinus B.V. Couverture isolante auto-adhesive
US8008597B2 (en) * 2006-07-18 2011-08-30 Canon Kabushiki Kaisha Sheet post-processing apparatus
DE102010035701A1 (de) 2009-08-27 2011-04-07 Roland Weber Schneidvorrichtung für TDS und ODF
WO2011032073A3 (fr) * 2009-09-14 2011-05-05 Primera Technology, Inc. Système de finition d'étiquettes imprimées à l'aide de dispositifs de découpe x-y multiples
US8663410B2 (en) 2009-09-14 2014-03-04 Primera Technology, Inc. System for finishing printed labels using multiple X-Y cutters
US9199388B2 (en) 2009-09-14 2015-12-01 Primera Technology, Inc. System for finishing printed labels using multiple X-Y cutters
ES2372836A1 (es) * 2010-01-11 2012-01-27 Grup Andreu Gombau Sl Bobina de material autoadhesivo y método para la fabricación de etiquetas autoadhesivas.
US20140031189A1 (en) * 2012-07-30 2014-01-30 Miyakoshi Printing Machinery Co., Ltd. Method of half-cut cutout processing of label paper
EP2692518A1 (fr) * 2012-07-30 2014-02-05 Miyakoshi Printing Machinery Co., Ltd. Procédé de traitement de découpe en deux de papier à étiquettes
CN103567643A (zh) * 2012-07-30 2014-02-12 株式会社宫腰 标签用纸的半切割冲裁加工方法
US9346235B2 (en) 2012-07-30 2016-05-24 Miyakoshi Printing Machinery Co., Ltd. Method of half-cut cutout processing of label paper
CN103567643B (zh) * 2012-07-30 2016-08-10 株式会社宫腰 标签用纸的半切割冲裁加工方法
EP3523084A1 (fr) * 2016-10-04 2019-08-14 Soremartec S.A. Traitement par laser de matériaux d'emballage
US20230185008A1 (en) * 2019-10-03 2023-06-15 American Polarizers, Inc. Mechanized Process For Improved Removal Of Elements Such As Labels From An Adhesive Film During Manufacture
CN115026907A (zh) * 2021-03-05 2022-09-09 塞托普拉特胶带技术有限公司 用于制造胶粘带的方法和设备
CN115026907B (zh) * 2021-03-05 2024-07-09 塞托普拉特胶带技术有限公司 用于制造胶粘带的方法和设备

Also Published As

Publication number Publication date
GB9519603D0 (en) 1995-11-29
AU7090596A (en) 1997-04-17

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