EP1298082A2 - Distributeur pour la distribution en continu et en discontinu d'un ruban adhésif double-face en rouleau - Google Patents

Distributeur pour la distribution en continu et en discontinu d'un ruban adhésif double-face en rouleau Download PDF

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Publication number
EP1298082A2
EP1298082A2 EP02020019A EP02020019A EP1298082A2 EP 1298082 A2 EP1298082 A2 EP 1298082A2 EP 02020019 A EP02020019 A EP 02020019A EP 02020019 A EP02020019 A EP 02020019A EP 1298082 A2 EP1298082 A2 EP 1298082A2
Authority
EP
European Patent Office
Prior art keywords
dispensing
roller
adhesive tape
guided
dispensing device
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Withdrawn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
EP02020019A
Other languages
German (de)
English (en)
Other versions
EP1298082A3 (fr
Inventor
Reiner Schulz
Gerd Hebbel
Günter Aster
Bernhard Gebbeken
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.)
Tesa SE
Original Assignee
Tesa SE
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 Tesa SE filed Critical Tesa SE
Publication of EP1298082A2 publication Critical patent/EP1298082A2/fr
Publication of EP1298082A3 publication Critical patent/EP1298082A3/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Withdrawn legal-status Critical Current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
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/0013—Article or web delivery apparatus incorporating cutting or line-perforating devices and applying the article or the web by adhesive to a surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
    • B65H19/283—Attaching the leading end of the web to the replacement web-roll core or spindle by applying adhesive to the core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
    • B65H19/286—Attaching the leading end of the web to the replacement web-roll core or spindle by applying adhesive to the web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
    • B65H37/002—Web delivery apparatus, the web serving as support for articles, material or another web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/41419—Starting winding process
    • B65H2301/41427—Starting winding process involving arrangements for securing leading edge to core, e.g. adhesive tape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5151—Cutting handled material transversally to feeding direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5152—Cutting partially, e.g. perforating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5153—Details of cutting means
    • B65H2301/51535—Details of cutting means adhesive tape or tab
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/11—Length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/40—Movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors
    • 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
    • B65H2701/10—Handled articles or webs
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • B65H2701/1311—Edges leading edge
    • 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
    • B65H2701/10—Handled articles or webs
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • B65H2701/1313—Edges trailing edge
    • 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
    • B65H2701/3772—Double-sided
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1084—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing of continuous or running length bonded web
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1317—Means feeding plural workpieces to be joined
    • Y10T156/1322—Severing before bonding or assembling of parts
    • Y10T156/1339—Delivering cut part in sequence to serially conveyed articles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1705—Lamina transferred to base from adhered flexible web or sheet type carrier
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1744—Means bringing discrete articles into assembled relationship
    • Y10T156/1768—Means simultaneously conveying plural articles from a single source and serially presenting them to an assembly station

Definitions

  • the invention relates to a dispensing device, with the aid of which material which is made from a there is a roll of carrier material that is self-adhesive on both sides, can be donated.
  • dispensers For unwinding self-adhesive equipment on a roll there are a variety of dispensers that work on the material, be it a material narrow, possibly also wide adhesive tape, be it a wide adhesive film, are tailored.
  • the guide means is in turn formed by a fixed guide element as well a second guide element, which is used for a pivoting movement around a pin is mounted to in accordance with changes in the tension of the strip the strip track to be relatively movable.
  • One extends between the elements Tension spring and a sliding balance weight, which is from the second Guide element is worn and is adjustable so that the second Guide element is in balance around the pin.
  • the braking means is provided to reduce the speed of rotation of the roller is controlled by the relative movement of the elements, whereby the braking means when Rise in the tension in the strip is released and the brake fluid when removing the tension in the strip is attracted.
  • the drive means serves the inevitable Drive the roller and in this way generates a rotational speed, which is in Dependence on an increase in the tension of the path along said moving strip enlarged.
  • the manufactured paper is wound up on rolls, some of which are up to eight meters wide.
  • a core or sleeve usually made of cardboard, which gives the reel the necessary stability at the beginning to enable the reeling process.
  • the reeling process starts by applying a strip of adhesive to the core in the longitudinal direction in order to fix the beginning of the paper to this strip and thus to the core.
  • the adhesive is usually a hot-melt adhesive that is automatically applied in a corresponding width via a nozzle by moving the nozzle in the longitudinal direction over the core.
  • the object of the invention is to provide a dispensing device, which at a very simple constructive design a dispensing process of adhesive tapes made possible on sleeves or cores and at the same time automated as well as the known ones Avoids or at least reduces disadvantages of the prior art.
  • the pressure device is designed as a pressure roller.
  • other designs are also possible. So it can Pressure device can be designed in the form of a brush or plate.
  • the knife contact is preferably a single contact. But this can also be done in Start or end contact must be integrated. Especially when the distance of the knife roller of the pressure roller corresponds to that of the material length that is on the good donated, knife and start contact can be made into a single contact be summarized.
  • the cutting device is composed of a knife roller and a counter roller, the knife roller consisting of a roller on which there is at least one knife in the longitudinal direction.
  • the knife roller consisting of a roller on which there is at least one knife in the longitudinal direction.
  • Other embodiments are also possible here, for example a punch or punching line can make the necessary cut instead of a knife with a knife roller.
  • a fixing roller is present in the dispensing device behind the pressure roller, which presses the dispensed material onto the material, the fixing roller preferably being adapted to the surface shape of the material.
  • the fixing roller can also be designed in the form of a brush or plate.
  • the core is only very slightly curved in the area in which the adhesive tape is placed.
  • the fixing roller is cylindrical in shape, in particular if, in a further advantageous embodiment, the fixing roller is provided with an outer rubber cover or is made entirely of rubber. The fixing roller is then so flexible that it presses the adhesive tape over the entire surface of the item because it can compensate for the slight surface curvature of the item.
  • the core is strongly curved in the area in which the adhesive tape is placed.
  • the running surface of the fixing roller is concave in order to compensate for the curvature of the surface of the material by means of an appropriately designed counter-curvature, so that the adhesive tape is also securely pressed on over the entire surface.
  • the fusing roller takes the form of a single-shell rotational hyperboloid.
  • the fixing roller is preferably again provided with an outer rubber covering or made entirely of rubber.
  • double-sided adhesive tapes When they are wound into an Archimedean spiral, double-sided adhesive tapes usually have an endless release paper between the individual layers on the roll. This is placed on the roll on one of the two adhesive sides of the adhesive tape before the adhesive tape is wound. If the dispensing device is now used in conjunction with such an adhesive tape, it is advantageous if there is a storage roll behind the pressure roller which winds up the release paper of the dispensed material.
  • the release paper can alternatively be removed by means of a suitably designed suction system, for example with a suction bar or a suction draft.
  • the wrap angle of the material on the pressure roller is preferably 180 °.
  • the contacts that are required to trigger certain processes, for example switching elements such as light barriers, air barriers, feeler levers and similar devices known to the person skilled in the art for triggering a (switching) process. It is also within the scope of the invention if the contacts are designed as position measuring systems, i.e. if the cores are guided into the dispensing device for a defined distance, which triggers the start contact, which, when the goods are guided past them, triggers the dispensing process of the dispensing device. so that the pressure device, in particular pressure roller, is guided from the rest position into the dispensing position. The core is then advanced another defined piece, which in turn triggers the end contact. Any knife contact that may be present can also be triggered over a distance covered by the core.
  • switching elements such as light barriers, air barriers, feeler levers and similar devices known to the person skilled in the art for triggering a (switching) process.
  • the contacts are designed as position measuring systems, i.e. if the cores are guided into the dispensing
  • All known textile supports such as woven fabrics, knitted fabrics and scrims can be used as the support material or nonwovens can be used, under "nonwoven” at least textile fabrics according to EN 29092 (1988) as well as sewing fabrics and similar systems.
  • Spacer fabrics and knitted fabrics with lamination can also be used. Spacer fabrics of this type are disclosed in EP 0 071 212 B1. Spacer fabrics are mat-shaped laminates with a cover layer made of a fiber or filament fleece, an underlayer and individual or tufts of holding fibers between these layers, which are needled over the surface of the laminate and are needled through the particle layer and connect the cover layer and the underlayer to one another. According to EP 0 071 212 B1, particles of inert rock particles, such as sand, gravel or the like, are present in the holding fibers as an additional but not necessary feature. The holding fibers needled through the particle layer keep the cover layer and the underlay layer at a distance from one another and they are connected to the cover layer and the underlay layer.
  • Knitted fabrics are textile fabrics made from one or more threads or thread systems through stitch formation (thread grinding), in contrast to Woven goods (fabrics), in which the surface by crossing two thread systems (Warp and weft threads) is produced and the nonwovens (fiber composites), at a loose fiber pile through heat, needling, sewing or water jets is solidified.
  • Knitted fabrics can be knitted in which the threads cross through the Run textile, and divide it into knitted fabrics in which the threads run lengthways through the textile. Because of their knitted structure, knitted fabrics are in principle flexible, cuddly Textiles because the stitches can stretch in length and width and the endeavor have to return to their starting position. They are very high quality material durable.
  • the nonwovens used are particularly solidified staple fiber nonwovens, but also filament, Meltblown and spunbonded nonwovens, which usually have to be additionally consolidated.
  • Possible consolidation methods for nonwovens are mechanical, thermal and the chemical consolidation known. Are the mechanical strengthening Fibers mostly by swirling the individual fibers, by meshing Fiber bundles or by sewing additional threads purely mechanically held together, so by thermal as well as chemical Processes adhesive (with binder) or cohesive (binder-free) fiber-fiber bonds achieve. This can be done with suitable formulation and process control restrict exclusively or at least predominantly to fiber nodes, so that while maintaining the loose, open structure in the fleece, a stable, three-dimensional network is formed.
  • Nonwovens have proven to be particularly advantageous, in particular by overstitching are solidified with separate threads or by stitching.
  • Such consolidated nonwovens are used, for example, on sewing machines of the type "Malivlies” manufactured by Karl Meyer, formerly Malimo, are among others at available from Naue Fasertechnik and Techtex GmbH. This makes a Mali fleece characterized in that a cross-fiber fleece through the formation of stitches from fibers of the Fleece is consolidated.
  • a fleece of the type Kunitvlies or Multiknitvlies can also be used as a carrier.
  • a Kunitvlies is characterized in that it results from the processing of a longitudinally oriented nonwoven fabric to a flat structure, which has loops on one side and mesh webs on the other side or poly fiber folds, but has neither threads nor prefabricated flat structures.
  • Such a fleece has also been produced for a long time, for example, on sewing-knitting machines of the "Kunitvlies" type from Karl Mayer.
  • Another characteristic feature of this fleece is that it can absorb high tensile forces in the longitudinal direction as a longitudinal fiber fleece.
  • a multi-knit fleece is characterized in comparison to the Kunit fleece in that the fleece is strengthened by both-sided piercing with needles both on the top and on the bottom. Finally, nonwovens are also suitable as a preliminary product to form an adhesive tape.
  • a sewing fleece is formed from a fleece material with a plurality of seams running parallel to one another. These seams are created by sewing or sewing continuous textile threads. Sewing-knitting machines of the "Maliwatt" type from Karl Mayer, formerly Malimo, are known for this type of fleece.
  • a staple fiber fleece that is pre-consolidated by mechanical processing in the first step or that is a wet fleece that has been laid hydrodynamically, wherein between 2% and 50% of the fibers of the fleece are melt fibers, in particular between 5% and 40% of the fibers of the fleece.
  • a fleece is characterized in that the fibers are laid wet or, for example, a staple fiber fleece is pre-consolidated by forming stitches from fibers of the fleece or by needling, sewing or air and / or water jet processing.
  • heat setting takes place, the strength of the fleece being increased again by melting or melting on the melt fibers.
  • the nonwoven backing can also be solidified without a binder, for example by hot stamping with structured rollers, properties such as strength, thickness, density, flexibility and the like being applied via pressure, temperature, residence time and the stamping geometry. can be controlled.
  • Binder can be made in solid, liquid, foamed or pasty form.
  • solid binders as Powder for trickling in, as a film or as a grid or in the form of binding fibers.
  • Liquid binders are dissolved in water or as organic solvents Dispersion can be applied.
  • Binding dispersions selected: thermosets in the form of phenolic or Melamine resin dispersions, elastomers as dispersions of natural or synthetic Rubbers or mostly dispersions of thermoplastics such as acrylates, vinyl acetates, Polyurethanes, styrene-butadiene systems, PVC, etc. and their copolymers. in the Normally these are anionic or non-ionic stabilized dispersions, in special cases, however, cationic dispersions can also be advantageous.
  • binder can be applied according to the prior art and is for example in standard coating or fleece technology works such as "Nonwovens” (Georg Thieme Verlag, Stuttgart, 1982) or “Textile Technology Nonwovens Production” (Employers' group overall textile, Eschborn, 1996).
  • binders For mechanically pre-consolidated nonwovens that already have sufficient bond strength, one-sided spray application of a binder is recommended in order to specifically change surface properties. In addition to the economical use of the binding agent, the energy required for drying is also significantly reduced in this way. Since no squeeze rollers are required and the dispersions predominantly remain in the upper area of the nonwoven, undesirable hardening and stiffening of the nonwoven can be largely prevented. For adequate adhesive bonding of the nonwoven backing, binders of the order of 1% to 50%, in particular 3% to 20%, based on the weight of the nonwoven, are generally to be added.
  • the addition of the binder can already during the manufacture of the fleece, in the mechanical Pre-consolidation or in a separate process step, this inline or can be done off-line. After the binder has been added it must be temporary a state is created for the binder in which it becomes sticky and adhesive connects the fibers - this can occur during drying, for example of dispersions, but can also be achieved by heating, with flat or partial Pressure application further variation possibilities are given.
  • the activation of the Binder can in known drying tunnels, but with a suitable binder selection also by means of infrared radiation, UV radiation, ultrasound, high-frequency radiation or the like. It makes sense for the later end use, but not mandatory necessary for the binder to become tacky after the end of the nonwoven manufacturing process has lost. It is advantageous that volatile components by thermal treatment how fiber auxiliaries are removed and thus a fleece with favorable fogging values arises, so that when using a low-fogging adhesive, an adhesive tape with particularly favorable fogging values can be produced.
  • Another special form of adhesive bonding is that activation of the binder by dissolving or swelling. In principle, you can also do this the fibers themselves or mixed special fibers the function of the binder take. As such solvents for most polymeric fibers Environmental considerations are questionable or problematic in their handling this method is rarely used.
  • the starting materials for the textile backing are in particular polyester, Polypropylene, viscose or cotton fibers are provided.
  • the selection is not on the materials mentioned are limited, but can be recognized by the person skilled in the art without having to be inventive, a multitude of other fibers for production of the fleece can be used.
  • Laminates and nets are also used in particular as carrier materials, but also foils (for example a polyolefin from the group of polyethylenes (for Example HDPE, LDPE, MDPE, LLDPE, VLLDPE, copolymers of ethylene with polar Comonomers) and / or the group of polypropylenes (for example polypropylene homopolymers, Polypropylene random copolymers or polypropylene block copolymers), mono- or biaxially oriented polypropylene, polyester, PVC, PET, Polystyrene, polyamide or polyimide), foams, foam, for example Polyethylene and polyurethane, foamed films and creped and uncreped Papers. These materials can also be pretreated or post-treated. Common pretreatments are corona radiation, impregnation, coating, Painting and waterproofing; Common post-treatments are calendering, tempering, Laminating, punching and mounting.
  • Common pretreatments are corona radiation, impregn
  • flame retardants can be organic bromine compounds, if necessary with synergists like antimony trioxide, but with regard to the halogen-free nature of the adhesive tape red phosphorus, organophosphorus, mineral or intumescent compounds such as ammonium polyphosphate alone or in combination with synergists is preferred Find use.
  • the adhesive of the adhesive tape can be made from an adhesive based on solvent-based natural rubber and acrylate adhesives.
  • Adhesives based on acrylic dispersions are particularly preferred Adhesives based on styrene-isoprene-styrene block copolymers. This Adhesive technologies are known and are used in the adhesive tape industry used.
  • the amount of adhesive applied to the backing material is preferably 15 to 60 g / sqm. In a further preferred embodiment, the layer application is from 20 to 30 g / qm set.
  • the adhesive tapes can be produced by known processes. An overview The usual manufacturing processes can be found, for example, in "Coating Equipment”, Donatas Satas in Handbook of Pressure Sensitive Adhesive Technology, second edition, edited by Donatas Satas, Van Nostrand Reinhold New York pp. 767-808. The known methods for drying and cutting the tapes are also in the Handbook of Pressure Sensitive Adhesive Technology, page 809-874.
  • An adhesive based on an acrylate hotmelt is suitable which has a K value of at least 20, in particular greater than 30 (measured in each case in a 1% strength by weight solution in toluene, 25 ° C.), obtainable by concentrating a solution of such Mass to a system that can be processed as a hot melt. Concentration can take place in suitably equipped kettles or extruders, particularly in the case of the associated degassing, a degassing extruder is preferred.
  • Such an adhesive is set out in DE 43 13 008 C2. In an intermediate step, the solvent is completely removed from these acrylic masses produced in this way.
  • the K value is determined in particular in analogy to DIN 53 726.
  • the solution of the mass can 5 to 80 wt .-%, in particular 30 to 70 wt .-% Contain solvents.
  • solvents are preferably used, especially low boiling hydrocarbons, ketones, alcohols and / or esters.
  • Single-screw, twin-screw or multi-screw extruders are further preferred used with one or in particular two or more degassing units.
  • Benzoin derivatives can be polymerized into the acrylic hotmelt-based adhesive be, for example, benzoin acrylate or benzoin methacrylate, acrylic acid or Methacrylic esters. Such benzoin derivatives are described in EP 0 578 151 A.
  • the acrylic hot melt adhesive can be UV crosslinked.
  • Other Networking types are also possible, for example Electron beam crosslinking.
  • self-adhesive compositions are used Copolymers of (meth) acrylic acid and its esters with 1 to 25 carbon atoms, maleic, Fumaric and / or itaconic acid and / or their esters, substituted (meth) acrylamides, Maleic anhydride and other vinyl compounds such as vinyl esters in particular Vinyl acetate, vinyl alcohols and / or vinyl ethers used.
  • the residual solvent content should be less than 1% by weight.
  • an adhesive can be used, from the group of Natural rubbers or the synthetic rubbers or from any blend Natural rubbers and / or synthetic rubbers, the natural rubber or the natural rubbers basically from all available qualities such as Example crepe, RSS, ADS, TSR or CV types, depending on the required purity and Viscosity level, and the synthetic rubber or the synthetic rubbers from the Group of randomly copolymerized styrene-butadiene rubbers (SBR), the Butadiene rubbers (BR), synthetic polyisoprene (IR), butyl rubbers (IIR), the halogenated butyl rubbers (XIIR), the acrylate rubbers (ACM), the Ethylene-vinyl acetate copolymers (EVA) and the polyurethanes and / or their blends can be chosen.
  • SBR randomly copolymerized styrene-butadiene rubbers
  • BR Butadiene rubbers
  • IR butadiene rubbers
  • IIR butyl rubber
  • thermoplastic elastomers with a weight fraction of 10 to 50% by weight to the rubbers to improve the processability, based on the total elastomer fraction.
  • SIS styrene-isoprene-styrene
  • SBS styrene-butadiene-styrene
  • Tackifying resins are, without exception, all known and in the literature described adhesive resins can be used. These are representative Rosins, their disproportionated, hydrogenated, polymerized, esterified derivatives and salts, the aliphatic and aromatic hydrocarbon resins, terpene resins and terpene phenolic resins. Any combination of these and others. Resins can can be used to suit the properties of the resulting adhesive adjust. On the representation of the state of knowledge in the "Handbook of Pressure Sensitive Adhesive Technology "by Donatas Satas (van Nostrand, 1989) expressly pointed out.
  • Hydrocarbon resin is a collective name for thermoplastic, colorless to intensely brown colored polymers with a molecular weight of generally ⁇ 2000.
  • coal tar resins are the coumarone-linden resins.
  • hydrocarbon resins are made by polymerizing the raw materials isolatable unsaturated compounds obtained.
  • hydrocarbon resins are also by polymerizing monomers such as Styrene or accessible through polycondensation (certain formaldehyde resins) Polymers with a correspondingly low molecular weight are calculated.
  • hydrocarbon resins Products with a wide range of ⁇ 0 ° C (at 20 ° C liquid hydrocarbon resins) up to> 200 ° C varying softening range and a density of approx. 0.9 to 1.2 g / cm3.
  • Rosin is a natural resin that is made from the raw resin of Conifers is obtained. There are three types of rosin: Balsam resin as Distillation residue of turpentine oil, root resin as an extract from coniferous rhizomes and Tallharz, the dist. residue of tall oil. The largest in terms of quantity Balsam resin is important.
  • Rosin is a brittle, transparent product from red to brown in color. It is insoluble in water, but soluble in many organic solvents such as (chlorinated) aliphatic and aromatic hydrocarbons, esters, ethers and ketones as well in vegetable and mineral oils.
  • the softening point of rosin is in the Range from approx. 70 to 80 ° C.
  • Rosin is a mixture of approx. 90% resin acids and 10% neutral substances (fatty acid esters, terpene alcohols and hydrocarbons).
  • the most important rosin resin acids are unsaturated carboxylic acids of the gross formula C20H30O2, abietic, neoabietic, levopimaric, pimaric, isopimaric and palustric acids, in addition to hydrogenated and dehydrated abietic acid.
  • the proportions of these acids vary depending on the provenance of the rosin.
  • plasticizers softening substances are used. These include the paraffinic and naphthenic oils, (functionalized) oligomers such as oligobutadienes, isoprene, liquid nitrile rubbers, liquid terpene resins, vegetable and animal oils and fats, phthalates, functionalized acrylates.
  • paraffinic and naphthenic oils such as oligobutadienes, isoprene, liquid nitrile rubbers, liquid terpene resins, vegetable and animal oils and fats, phthalates, functionalized acrylates.
  • thermally activatable chemical crosslinkers such as accelerated sulfur or sulfur donor systems, isocyanate systems, reactive melamine, formaldehyde and (optionally halogenated) phenol-formaldehyde resins or reactive phenolic resin or diisocyanate crosslinking systems with the corresponding activators are epoxidized polyesters - and acrylate resins and their combinations can be used.
  • the crosslinkers are preferably activated at temperatures above 50 ° C., in particular at temperatures from 100 ° C. to 160 ° C., very particularly preferably at temperatures from 110 ° C. to 140 ° C.
  • the crosslinkers can also be thermally excited by IR rays or high-energy alternating fields.
  • the dispensing device designed according to the invention is particularly advantageous for Equip cardboard / plastic cores with strips of double-sided adhesive tape suitable, the adhesive tape being applied in the longitudinal direction of the cores, especially for roll cutting and winding.
  • the dispensing device designed according to the invention is also advantageous for equipping of paper rolls or film rolls with an adhesive tape for the flying roll change suitable, the adhesive tape in the longitudinal direction of the paper and / or film rolls is applied, in particular in the printing or finishing of papers and Films.
  • the dispensing device is suitable for use without interference in the semi-automatic or automatic application of pieces of adhesive tape to sleeves or cores. This ensures continuous operation, as is required in particular in the paper industry.
  • the dispensing device 1 for dispensing material 2 which consists of a Carrier material on a roll, equipped with self-adhesive on both sides exists, shown in a particularly advantageous embodiment.
  • the dispensing device 1 is shown, which is set up for further continuous operation.
  • the adhesive tape 2 does not yet have a cut, so that not only the release paper is wound onto the storage roll 60 but the entire adhesive tape 2 for the time being when the dispensing device 1 is started up.
  • a closed row of individual cores 3 is fed into the dispensing device 1 (coming from the left in FIG. 1, only the first core 3 being shown here).
  • FIG. 2 shows the cut adhesive tape 2 brought into the starting position.
  • the actual adhesive tape 28 is cut through by the knife roller 21, to be precise except for the release paper 29 (see enlarged section in FIG. 2).
  • the knife roller 21 rotates until the knife 22 meets the counter roller 23. Since the gap between knife 22 and counter-pressure roller 23 is then very small, the adhesive tape 2 is cut. However, the gap is chosen so that the release paper 29 is not cut. After the cut, the non-injured release paper 29 is able to further convey the severed adhesive tape 28 until the incision 70 lies exactly below the pressure roller 10.
  • the dispensing device 1 is thus prepared so far that the first core 3 can be guided into the dispensing device 1.
  • FIGS. 3 and 4 show the core 3 of a later paper roll to be equipped with the adhesive tape section 2 in the starting position.
  • the dispensing process of the dispensing device 1 is triggered.
  • the pressure roller 10 is lowered from the rest position into the dispensing position, so that the adhesive tape 2 comes into contact with the core 3.
  • the beginning of the adhesive tape 2 is pressed onto the material 3. If the core 3 is now conveyed further into the dispensing device 1, the dispensing device 1 begins to rotate synchronously with the speed of the core 3, so that the peripheral speed of the adhesive tape 2 on the pressure roller 10 corresponds approximately to the speed of advance of the core 3.
  • the pressure roller 10 lowered onto the good 3 dispenses the strip of the adhesive tape 2 onto the good 3 in the dispensing process.
  • the release paper 29 separated from the adhesive tape 2 is wound onto the storage roll 60.
  • the knife roller 21 is in the rest position.
  • the end of the core 3 reaches the knife contact 43, which, when the material 3 is guided past it, triggers the cutting process of the cutting device 1 into the adhesive tape 2 in order to prepare the next adhesive tape section 2.
  • the knife 22 of the knife roller 21 is rotated in the same direction with the adhesive tape 2 until the knife 22 meets the counter roller 23.
  • the adhesive tape 2 is cut again until the release paper 29.
  • the fixing roller 50 provided behind the pressure roller 10 ensures that the dispensed material 2 is pressed onto the material 3.
  • the end of the core 3 reaches the end contact 42, which, when the product 3 is guided past it, ends the dispensing process of the dispensing device 1, so that the pressure roller 10 is guided from the dispensing position into the rest position, with which the Dispensing of the adhesive tape 2 is ended.
  • the dispensing device 1 remains in this position, so it does not rotate any further. Since the material 3 is simultaneously conveyed out of the dispensing device 1, the adhesive tape section is separated from the adhesive tape 2 in the previously set cut due to the increasing tension. The good 3 is thus provided with a strip of adhesive tape 2 over the desired length.

Landscapes

  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Replacement Of Web Rolls (AREA)
EP02020019A 2001-09-27 2002-09-06 Distributeur pour la distribution en continu et en discontinu d'un ruban adhésif double-face en rouleau Withdrawn EP1298082A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10147813 2001-09-27
DE10147813A DE10147813A1 (de) 2001-09-27 2001-09-27 Spendevorrichtung zum kontinuierlichen und diskontinuierlichen Verspenden von Material, das aus einer auf einer Rolle befindlichem, beidseitig selbstklebend ausgerüstetem Trägermaterial besteht

Publications (2)

Publication Number Publication Date
EP1298082A2 true EP1298082A2 (fr) 2003-04-02
EP1298082A3 EP1298082A3 (fr) 2004-06-16

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EP02020019A Withdrawn EP1298082A3 (fr) 2001-09-27 2002-09-06 Distributeur pour la distribution en continu et en discontinu d'un ruban adhésif double-face en rouleau

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Country Link
US (1) US7090734B2 (fr)
EP (1) EP1298082A3 (fr)
CA (1) CA2403353A1 (fr)
DE (1) DE10147813A1 (fr)

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US7985316B2 (en) * 2005-08-17 2011-07-26 First Data Corporation Adhesive applicator systems and methods
US20070107662A1 (en) * 2005-10-27 2007-05-17 Queen Donna R Disposable protective cover for pet beds and other to-be-protected surfaces
US20080060320A1 (en) * 2006-03-14 2008-03-13 Kerry Quinn Secondary Packaging of Smoking Articles
US7836932B2 (en) * 2007-09-14 2010-11-23 3M Innovative Properties Company Taping head
US20090233050A1 (en) * 2008-03-17 2009-09-17 Silverbrook Research Pty Ltd Fabrication of a printhead integrated circuit attachment film by photopatterning
EP2548828A1 (fr) 2011-07-20 2013-01-23 Mikron Berlin GmbH Dispositif et procédé pour disposer avec précision un élément plan et plat avec un ruban adhésif double face muni d'une bande de recouvrement
DE102012101063A1 (de) * 2012-02-09 2013-08-14 Stiftung Tierärztliche Hochschule Hannover Bioaerosol-Sammeleinrichtung
ITUB20154876A1 (it) * 2015-11-03 2017-05-03 Tecnau Srl Dispositivo e metodo di trattamento fogli con sezione o sezioni da sovrapporre
US9855724B1 (en) 2017-02-10 2018-01-02 Custom Adhesive Products Llc Splice tape with internal, interlayer separation interface
US10815092B2 (en) * 2017-05-24 2020-10-27 Sandar Industries, Inc. Dispenser cartridge and wiper

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Also Published As

Publication number Publication date
US20030056903A1 (en) 2003-03-27
CA2403353A1 (fr) 2003-03-27
EP1298082A3 (fr) 2004-06-16
DE10147813A1 (de) 2003-04-10
US7090734B2 (en) 2006-08-15

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