EP2377765A2 - Confection de matière adhésive - Google Patents
Confection de matière adhésive Download PDFInfo
- Publication number
- EP2377765A2 EP2377765A2 EP11160364A EP11160364A EP2377765A2 EP 2377765 A2 EP2377765 A2 EP 2377765A2 EP 11160364 A EP11160364 A EP 11160364A EP 11160364 A EP11160364 A EP 11160364A EP 2377765 A2 EP2377765 A2 EP 2377765A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- plastic film
- packaged
- hot melt
- cooling belt
- cooling
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
- B65B63/08—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for heating or cooling articles or materials to facilitate packaging
Definitions
- the present invention relates to a method for packaging hot melt adhesive, in particular pressure-sensitive hot melt adhesive or substances sticky at room temperature as a material to be packaged in a plastic film.
- Hotmelt adhesives are solvent-free adhesives which, for use by the introduction of heat, are put into a liquid or viscous state in which they can readily wet the material surfaces to be bonded and on which they adhere firmly after cooling and solidification.
- Hot melt adhesives usually consist of a mixture of substances, which are melted together during manufacture and then formulated.
- PSA adhesives which stands for "Pressure Sensitive Adhesive".
- PSA adhesives which stands for "Pressure Sensitive Adhesive”.
- the film materials used Since it is often desired that the packaging of the portioned hot melt adhesive in use with should be melted to avoid additional operations by emptying the packaging, the film materials used must have a low melting point and also must not significantly deteriorate the adhesive properties of the hot melt adhesive.
- film packaging from polymers with a low melting point separates due to the high melting temperatures of the hot melt adhesive, for example, 120 or 140 ° C direct filling of the hot melt adhesive in the film packaging.
- Another method for packaging hot melt adhesive is in the DE 199 13 034 described, after which the hot melt adhesive is filled directly into a film tube, which is located during the filling process in a water bath. In this way, the outside of the film tube is sufficiently cooled to prevent immediate melting by the filled hot melt adhesive.
- the film bag is partially squeezed together by means of transport rollers to form individual portions and welded at these points.
- a disadvantage of this method is that the hot melt adhesive is available only in relatively large massive portions and that these portions must first be dried after removal from the water bath. Furthermore, this process can only be carried out with packaging films which have a relatively high melting point, so that they do not melt despite water cooling during filling.
- the object underlying the present invention is to provide a method by which the disadvantages known from the prior art can be overcome.
- elaborate drying steps are to be avoided and the production of different dosage forms and Serving sizes for hot melt adhesive portions are made possible.
- the hotmelt adhesive For melting the hotmelt adhesive it can be used in any desired form or the hotmelt adhesive can be mixed from its individual components, that is to say be prepared directly.
- the preparation of the individual components can be carried out before or during the melting.
- the melt is expediently mixed, for example, by stirring.
- the method of the present invention can package a variety of materials, such as resins and the like, with packaging of hot melt adhesives being a preferred application.
- the portionwise dosing can be carried out in different variants.
- the molten material can be applied, for example, in strand form, in the form of pillows or in pasted form on the cooling belt. This can be done for example via a heated extruder, via one or more nozzles, such as in a Pastilliervorraum.
- portionwise dosing we understand both the dosing in defined portions, for example by weight, as well as the dosing in different portions. For unitary weight portions, these can be summarized by counting to a desired package size. Portions of different weights can be combined, for example, via belt weighers to desired pack sizes.
- the heat conducting threads are largely covered at least on the side in contact with the material to be packaged.
- This is understood to mean that the heat conducting threads are practically completely covered by the polymer matrix and can only protrude from the polymer matrix at individual points, in particular the bending points, for example in plain weave of the textile support.
- the coverage of the thermal conduction through the polymer matrix is in such a case on the corresponding side of the cooling belt at least 75%, in particular at least 85 to 95%, preferably 95% until complete coverage. Most preferably, a complete coverage of the thermal conduction through the polymer matrix on at least one side of the cooling belt before.
- cooling belts can be used, which have on both sides of the above-mentioned covers the heat conduction through the polymer matrix.
- the politiciansleitfäden the cooling belt allow rapid heat transfer to the opposite side of the cooling belt, so that cooling of the material or the hot melt adhesive through a cooling bath, such as a water bath, is not required.
- a cooling bath such as a water bath
- the heat dissipated therefrom can be dissipated, for example, by direct contact with a cooling medium, such as by spraying or indirectly by contact with a cooled plate or roller.
- the heat conducting threads which are usually formed at least in part from metal threads or carbon fibers, do not come into direct contact with the material or hotmelt adhesive. This is important insofar as the hot-melt adhesive, depending on the composition of the material of the cooling threads can have such a high adhesion, that a simple removal of the adhesive portions of the cooling belt would not be possible in this case.
- the cooling belts which can be used according to the invention can be suitably produced in such a way that initially the textile carrier is created, for example by interweaving weft and warp threads in plain weave. This textile carrier is then passed through a V-shaped slot in which is the raw material of the polymer matrix, which impregnates the textile carrier.
- the textile carrier is then passed through a V-shaped slot in which is the raw material of the polymer matrix, which impregnates the textile carrier.
- solutions or dispersions of the polymers of the polymer matrix in water or organic solvents are used as the raw material for the polymer matrix.
- reactive prepolymers can be used to prepare the polymer matrix, which react after impregnation of the textile support to form the polymer matrix.
- all reaction types are suitable for the polymerization reaction taking place in this case, in particular the radical polymerization, polyaddition or polycondensation, the latter for example with elimination of water, methanol, ethanol, acetic acid or other typical leaving groups.
- the aforementioned substances are known to those skilled in the field of adhesives and jointing compounds.
- the polymerization reaction can also be accelerated by irradiation with UV or IR light and / or by heat.
- a polymer matrix according to the invention can be prepared by curing two-component silicone at elevated temperatures at about 200 ° C.
- the removal of the material portions from the cooling belt before packaging is achieved, for example, by simply dropping it on a deflection roller.
- the throwing off can additionally be assisted by a scraper, which does not necessarily have to touch the cooling belt surface, but can.
- the polymer matrix of the cooling belt and the scraper should expediently consist of a material to which the material does not or hardly adheres.
- the choice of material for the polymer matrix ultimately depends on the type of material or hot melt adhesive to be packed, so that the skilled person can determine suitable polymer matrix materials by means of simple adhesive tests. Silicone elastomers, fluoroelastomers and / or fluorosilicone elastomers are particularly preferred as the material for the polymer matrix because of their anti-adhesive properties.
- the scraper may also be made of these materials or may consist of a metal sheet, which may be provided with these polymers or with a Teflon layer.
- Both the cooling belt and the scraper may be subjected to corona or plasma treatment to further reduce the adhesion of the material or hot melt adhesive.
- the heat conduction of the cooling belt at least partially made of metals or metal alloys, which are in particular selected from iron, steel, copper, aluminum, silver, brass, bronzes and the like. Also the use of carbon thermal conduction is possible. These materials give the cooling belt on the one hand sufficient mechanical strength and thus dimensional stability and on the other hand have a high thermal conductivity, with which the heat of the molten material from one side of the cooling belt can be dissipated quickly to the opposite side of the cooling belt.
- the textile carrier of the cooling belt comprises a woven fabric in plain weave, in which the heat conducting threads at least partially form warp threads.
- the heat conducting threads at least partially form warp threads.
- the textile carrier has weft threads or transverse threads made of a material which is selected from coated and / or uncoated polymer, carbon and / or metal fibers, multifilaments or monofilaments.
- a material which is selected from coated and / or uncoated polymer, carbon and / or metal fibers, multifilaments or monofilaments.
- polymer fibers for example Fibers of nylon, aramid, kevlar, polyesters and the like in question.
- Suitable metal fibers are, for example, iron, steel, copper, aluminum, silver, brass, bronzes or the like.
- silicones, fluoro- and / or fluorosilicone elastomers can be used to cover the aforementioned fibers.
- the warp or weft threads used in the context of the present invention may comprise core threads which are wound around at least one wire or a polymer fiber.
- wires or polymer fibers may be stranded or braided around the core filaments.
- the individual fibers of such threads may have a sheath of the above-mentioned substances. It is also possible to provide weft or warp threads of the abovementioned type after wrapping or stranding or braiding with a surface coating of the abovementioned substances.
- cooling belt it is possible to cool the cooling belt at least in sections and / or on both sides by means of a cooling device, preferably at least on the side opposite the side coming into contact with the material or the hotmelt adhesive.
- a cooling device for example, cooling rollers or a cooled plate come into consideration, over which the cooling belt is guided and which can be cooled by means of coolant.
- the opposite side can also be cooled by direct contact with a cooling medium, such as by spraying.
- a corresponding Spray device for the coolant provided. Combinations of these cooling devices are possible.
- the material or the hotmelt adhesive is tacky at room temperature, in particular at 10 ° C. or even at 0 ° C., and the material or adhesive portions are preferably removed from the cooling belt in the adhesive state and packaged in the plastic film.
- hot melt adhesives can be portioned and packaged with the method according to the invention, which even at temperatures below 0 ° C, such as at -5 ° C, still have pressure-sensitive adhesive properties.
- the individual adhesive portions can partially sinter together after packaging.
- the enlarged surface of the adhesive portions is retained, which allows a rapid melting.
- the other hand remains in this way less air in the package or between the adhesive portions, so that a space-saving packaging is guaranteed.
- the material to be packaged is a hotmelt adhesive containing a polymer component which is selected from polyolefins, in particular polyethylene, ethylene-vinyl acetate copolymers, polyamides, polyesters or polyester elastomers, polyurethanes, polyacrylates and / or styrene copolymers or block copolymers or mixtures thereof.
- a polymer component which is selected from polyolefins, in particular polyethylene, ethylene-vinyl acetate copolymers, polyamides, polyesters or polyester elastomers, polyurethanes, polyacrylates and / or styrene copolymers or block copolymers or mixtures thereof.
- the hotmelt adhesive may further comprise adjuvants selected from defoamers, wetting agents, dyes, stabilizers, plasticizers, preservatives and / or tackifying resins, in particular rosin resins and / or their derivatives.
- the plastic film is suitable for simultaneous melting with the hotmelt adhesive.
- the plastic film in particular contains polymers which are selected from polyethylene, polyvinyl acetate, polyamides, polybutadiene, polyesters, polycarbonates, atactic polyalphaolefins, thermoplastic polyacrylamides, polyacrylonitriles, polymethylpentenes, polyphenylene sulfides, aromatic polyurethanes, polystyrene acrylonitriles, polyethylene terephthalates and their copolymers and terpolymers, in particular ethylene vinyl acetate ,
- the plastic film used in the context of the method according to the invention preferably has a melting temperature of 25 to 100 ° C, in particular 30 to 70 ° C, preferably 35 to 65 ° C.
- the use of such films is particularly advantageous, since they quickly pass into the liquid form during the melting of the hot melt adhesive and thus release the hot melt adhesive packaged in the films for melting.
- Plastic films with such low melting points can not be used in part in the processes hitherto known from the prior art be because the hot melt adhesive during the packaging still at such a high temperature that the film material would be melted thereby.
- the plastic films used consist of at least 5 wt .-% of an ethylene-vinyl acetate copolymer, for example, more than 10 wt .-%, preferably more than 25 wt .-%, in particular 35 wt .-% or more.
- the remaining portion is preferably formed from polyethylene.
- Particularly suitable are mixed films of ethylene-vinyl acetate copolymer (EVA) and polyethylene (PE) having a mass ratio of ethylene-vinyl acetate to polyethylene of 5:95 to 50:50, in particular from 25:75 to 40:60, preferably from 35:65 ,
- the content of vinyl acetate in the ethylene-vinyl acetate copolymer used is advantageously at least 30 mol%, preferably at least 40 mol%, preferably from 30 to 70 mol%, particularly preferably from 40 to 60 mol%, very particularly preferably 50 mol -%.
- these polymers or blends of ethylene-vinyl acetate and polyethylene are characterized in particular by the fact that they do not adversely affect the adhesive properties of the hot melt adhesive generally when the film material is melted together with the hot melt adhesive and used.
- the plastic films used in the context of the present invention are in the form of a bag or a film tube, it being possible for the individual bags to be produced by welding and separating after the packaging of the hotmelt adhesive.
- plastic films used in the context of the present invention may in principle have any useful for the packaging of hot melt adhesives film thickness, for example, a thickness of 5 to 200 .mu.m, in particular from 10 to 100 microns.
- neither the plastic film nor the material portions have a surface treatment with non-stick substances, such as, for example, silicone oils, surfactants and the like.
- a surface treatment with non-stick substances such as, for example, silicone oils, surfactants and the like.
- an adhesion-reducing surface treatment required, such as by a corona or plasma treatment.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Wrappers (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010003896A DE102010003896A1 (de) | 2010-04-13 | 2010-04-13 | Klebstoffkonfektionierung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2377765A2 true EP2377765A2 (fr) | 2011-10-19 |
EP2377765A3 EP2377765A3 (fr) | 2011-11-02 |
EP2377765B1 EP2377765B1 (fr) | 2013-06-05 |
Family
ID=44009890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11160364.3A Not-in-force EP2377765B1 (fr) | 2010-04-13 | 2011-03-30 | Confection de matière adhésive |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110247304A1 (fr) |
EP (1) | EP2377765B1 (fr) |
CN (1) | CN102275659A (fr) |
DE (1) | DE102010003896A1 (fr) |
TW (1) | TW201206772A (fr) |
ZA (1) | ZA201102670B (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2399842B1 (fr) * | 2009-02-19 | 2017-07-19 | Mitsubishi Gas Chemical Company, Inc. | Procédé de stockage |
CN102559093A (zh) * | 2011-12-23 | 2012-07-11 | 吴江德邦科技化工有限公司 | 一种粘合剂及生产方法 |
US9272795B2 (en) | 2012-05-17 | 2016-03-01 | Henkel IP & Holding GmbH | Integral hot melt adhesive packaging films and use thereof |
JP6404331B2 (ja) * | 2013-05-29 | 2018-10-10 | エイチ.ビー.フラー カンパニー | パッケージ入りホットメルト感圧接着剤 |
EP3218282A4 (fr) * | 2014-11-14 | 2018-06-13 | Gala Industries Inc | Film pour ensacher des matières collantes |
DE102015121562B4 (de) * | 2015-12-10 | 2021-05-06 | Coroplast Fritz Müller Gmbh & Co. Kg | Hochtemperaturbeständiges farbiges, insbesondere orangefarbiges, Klebeband, Verfahren zu seiner Herstellung, Verwendung eines Trägers zu seiner Herstellung sowie Verwendung des Klebebandes zur Herstellung von Kabelbäumen |
WO2018217748A1 (fr) | 2017-05-22 | 2018-11-29 | H.B. Fuller Company | Composition d'adhésif thermofusible |
JP2019108144A (ja) * | 2017-12-18 | 2019-07-04 | ヘンケルジャパン株式会社 | フィルム包装型ホットメルト接着剤 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0649718A1 (fr) | 1990-08-01 | 1995-04-26 | H.B. FULLER LICENSING & FINANCING, INC. | Procédé pour le conditionnement d'un adhésif et l'article conditionné correspondant |
DE19913034A1 (de) | 1998-05-13 | 1999-11-18 | Henkel Kgaa | Verfahren zum Verpacken von Schmelzklebstoff |
WO2000034129A1 (fr) | 1998-12-10 | 2000-06-15 | Henkel Kommanditgesellschaft Auf Atkien | Procede d'emballage d'adhesif thermofusible sensible a la pression |
Family Cites Families (24)
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GB918243A (en) * | 1959-11-04 | 1963-02-13 | Dunlop Rubber Co | Improvements in or relating to conveyor belting |
DE2653266A1 (de) * | 1976-11-24 | 1978-06-01 | Sandvik Conveyor Gmbh | Vorrichtung zum kuehlen von fluessigem bitumen |
FR2489351A1 (fr) * | 1980-09-04 | 1982-03-05 | Swift Et Cie | Procede de conditionnement d'une colle thermofusible constituant adhesif permanent |
DE3150171A1 (de) * | 1981-12-18 | 1983-06-30 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von blockcopolymerisaten auf basis von ethylencopolymerisaten, blockcopolymerisate und deren verwendung als additive fuer thermoplaste und mineraloele oder als schmelzhaftkleber |
JPS599239A (ja) * | 1982-07-05 | 1984-01-18 | 三ツ星ベルト株式会社 | ベルト用織物 |
EP0240861B1 (fr) * | 1986-04-08 | 1990-01-17 | Habasit AG | Courroie de transmission |
US5240531A (en) * | 1988-10-26 | 1993-08-31 | Ricoh Company, Ltd. | Endless belt |
DE3843811A1 (de) * | 1988-12-24 | 1990-07-05 | Alwit Gmbh Produktions Und Han | Foerdergurt |
DE3940490A1 (de) * | 1989-12-07 | 1991-06-13 | Beiersdorf Ag | Druckempfindlicher schmelzhaftkleber |
DE9318554U1 (de) * | 1993-12-06 | 1994-02-17 | Jowat Lobers U. Frank Gmbh & Co Kg, 32756 Detmold | Anlage zum Beschichten von in Einzelvolumina separierten Kleber, insbesondere Schmelzhaftkleber |
DE19528369A1 (de) * | 1994-08-08 | 1996-02-15 | Basf Ag | Polypropylenhaftkleber |
US5804610A (en) * | 1994-09-09 | 1998-09-08 | Minnesota Mining And Manufacturing Company | Methods of making packaged viscoelastic compositions |
US5425985A (en) * | 1994-10-28 | 1995-06-20 | The Goodyear Tire & Rubber Company | Belt construction having a mock leno fabric as an impact breaker or splice insert |
IT1271770B (it) * | 1994-12-16 | 1997-06-09 | Sav Ind Srl | Procedimento di imballaggio allo stato fuso di sostanze appiccicose ed impianto di imballaggio utilizzante detto procedimento |
DE19632787C2 (de) * | 1996-08-15 | 2001-06-28 | Santrade Ltd | Verfahren zum Herstellen und Umhüllen von Schmelzenportionen sowie Anlage zur Durchführung des Verfahrens |
JPH10120137A (ja) * | 1996-10-21 | 1998-05-12 | Mitsuboshi Belting Ltd | 搬送用ベルトおよび同ベルトの製造方法 |
US6006497A (en) * | 1997-03-26 | 1999-12-28 | Reichhold Chemicals, Inc. | Methods and apparatus for preparing a hot melt adhesive |
US5987852A (en) * | 1998-02-17 | 1999-11-23 | Croda Adhesives, Inc. | Method for the tack-free packaging of a hot-melt pressure sensitive adhesive |
DE29901565U1 (de) * | 1999-01-29 | 1999-04-08 | Santrade Ltd., Luzern | Vorrichtung zum Herstellen und Umhüllen von Schmelzenportionen |
DE10004174A1 (de) * | 2000-02-01 | 2001-08-09 | Santrade Ltd | Vorrichtung zur Herstellung und Umhüllung von Schmelzenportionen |
US7350644B2 (en) * | 2002-10-21 | 2008-04-01 | National Starch And Chemical Investment Holding Corporation | Multi-layer film packaging of hot melt adhesive |
EP1721842B1 (fr) * | 2005-05-10 | 2006-12-13 | Heimbach GmbH & Co. KG | Convoyeur à bande, dispositif de refroidissement et de chauffage pour un tel convoyeur à bande et procédé pour la production de produits au moyen d'un convoyeur à bande |
US7759266B2 (en) * | 2007-07-13 | 2010-07-20 | Fenner Dunlop Americas, Inc. | Dual crimped warp fabric for conveyor belt applications |
US20110244232A1 (en) * | 2010-04-02 | 2011-10-06 | Hall Gregory K | Processes for Forming Adhesive Blend Compositions |
-
2010
- 2010-04-13 DE DE102010003896A patent/DE102010003896A1/de not_active Ceased
-
2011
- 2011-03-21 TW TW100109564A patent/TW201206772A/zh unknown
- 2011-03-30 EP EP11160364.3A patent/EP2377765B1/fr not_active Not-in-force
- 2011-04-11 ZA ZA2011/02670A patent/ZA201102670B/en unknown
- 2011-04-13 CN CN2011100965383A patent/CN102275659A/zh active Pending
- 2011-04-13 US US13/085,667 patent/US20110247304A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0649718A1 (fr) | 1990-08-01 | 1995-04-26 | H.B. FULLER LICENSING & FINANCING, INC. | Procédé pour le conditionnement d'un adhésif et l'article conditionné correspondant |
DE19913034A1 (de) | 1998-05-13 | 1999-11-18 | Henkel Kgaa | Verfahren zum Verpacken von Schmelzklebstoff |
WO2000034129A1 (fr) | 1998-12-10 | 2000-06-15 | Henkel Kommanditgesellschaft Auf Atkien | Procede d'emballage d'adhesif thermofusible sensible a la pression |
Also Published As
Publication number | Publication date |
---|---|
EP2377765B1 (fr) | 2013-06-05 |
ZA201102670B (en) | 2011-12-28 |
CN102275659A (zh) | 2011-12-14 |
TW201206772A (en) | 2012-02-16 |
US20110247304A1 (en) | 2011-10-13 |
DE102010003896A1 (de) | 2011-10-13 |
EP2377765A3 (fr) | 2011-11-02 |
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