EP2151484B1 - Procédé de revêtement de matériaux de support en forme de bande ayant une charge de masse élevée - Google Patents
Procédé de revêtement de matériaux de support en forme de bande ayant une charge de masse élevée Download PDFInfo
- Publication number
- EP2151484B1 EP2151484B1 EP09166351A EP09166351A EP2151484B1 EP 2151484 B1 EP2151484 B1 EP 2151484B1 EP 09166351 A EP09166351 A EP 09166351A EP 09166351 A EP09166351 A EP 09166351A EP 2151484 B1 EP2151484 B1 EP 2151484B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drying
- coating
- composition
- carrier material
- zone
- 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.)
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Links
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- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
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- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 2
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- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N vinyl-ethylene Natural products C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- PEXNXOXCZLFQAO-ODZAUARKSA-N (z)-but-2-enedioic acid;ethenyl acetate Chemical class CC(=O)OC=C.OC(=O)\C=C/C(O)=O PEXNXOXCZLFQAO-ODZAUARKSA-N 0.000 description 1
- VSKJLJHPAFKHBX-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 VSKJLJHPAFKHBX-UHFFFAOYSA-N 0.000 description 1
- FEIQOMCWGDNMHM-UHFFFAOYSA-N 5-phenylpenta-2,4-dienoic acid Chemical class OC(=O)C=CC=CC1=CC=CC=C1 FEIQOMCWGDNMHM-UHFFFAOYSA-N 0.000 description 1
- 229920005789 ACRONAL® acrylic binder Polymers 0.000 description 1
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- FRTYNCLWSWCXPB-UHFFFAOYSA-N acetic acid prop-2-enoic acid styrene Chemical class C=CC1=CC=CC=C1.C(C)(=O)O.C(C=C)(=O)O FRTYNCLWSWCXPB-UHFFFAOYSA-N 0.000 description 1
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- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical class C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical class C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
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- ZSBRYDJXHOFQMW-UHFFFAOYSA-N chloroethene;ethene;ethenyl acetate Chemical group C=C.ClC=C.CC(=O)OC=C ZSBRYDJXHOFQMW-UHFFFAOYSA-N 0.000 description 1
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- SEBVBMQGOVGVAR-UHFFFAOYSA-N ethene;ethenyl acetate;prop-2-enoic acid Chemical class C=C.OC(=O)C=C.CC(=O)OC=C SEBVBMQGOVGVAR-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
- B05D3/0263—After-treatment with IR heaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
- B05D1/42—Distributing applied liquids or other fluent materials by members moving relatively to surface by non-rotary members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2252/00—Sheets
- B05D2252/02—Sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2401/00—Form of the coating product, e.g. solution, water dispersion, powders or the like
- B05D2401/20—Aqueous dispersion or solution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/068—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using ionising radiations (gamma, X, electrons)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/14—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by electrical means
- B05D3/141—Plasma treatment
- B05D3/142—Pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/10—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an adhesive surface
Definitions
- the invention relates to a method for coating a web-shaped carrier material with a mass dispersed in water.
- Pressure-sensitive adhesives or non-adhesive coatings are usually applied as a 100% system, from solution or aqueous to the respective support materials.
- the drying of aqueous and solvent-based coatings is usually carried out in coating systems with downstream drying channels, by means of which the solvent or water can be removed from the coating.
- the removed solvent is either regenerated or post-combusted.
- a targeted adjustment of the temperatures of the drying channels can influence the degree of drying. Controlled drying is ultimately a prerequisite for achieving a perfect coating image and the quality of a freed from water, solvents or semi-volatile components coating.
- Conventional drying systems for solvent- or water-based coatings are designed with about six to twelve drying zones, with a drying zone having a length of about one to three meters.
- a base material web drawn from a supply roll is coated with a water- or solvent-based adhesive and this coated web is dried in a convection dryer.
- Hanging dryers are often used as convection dryers.
- Hanging dryers for coated material webs are systems with a drying chamber in which the coated material webs are laid for drying in large down-hanging hanging loops over moving support rods, preferably made of metal, which are slowly conveyed through the drying chamber by means of a circular conveyor, in particular a chain conveyor. It is dried at moderate air velocities and mild drying conditions. Depending on the thickness of the coating, drying times between 30 minutes to several hours are required.
- the hanging dryer is divided into several drying zones, in which different temperatures can be set.
- the drying rate is generally a function of the drying temperature and the air velocity, provided that it is evenly distributed over the drying material.
- Hanging dryers are known in which above the movement path of moving through the dryer support rods over which the material web is hung in loops, fixed nozzles are provided for the supply of drying air, through which the drying air alternately into the interstices and on the region of the material web, which rests directly on the support rods is directed.
- two feed channels extending in the longitudinal direction of the dryer are provided above the stationary nozzles.
- each loop leg of each hanging loop is associated with at least one nozzle, which is inclined to the associated material web loop at an acute angle, that is inclined.
- the arrangement of the nozzles is chosen so that the drying air is directed substantially directly in the region of the support rods or shortly below the material web.
- Other variants of hanging dryers are from the DE 24 27 355 A1 as well as the DE 16 29 026 known.
- the object of the invention is to remedy this situation and to provide a method that does not have the deficiencies described or only to a minor extent.
- the invention relates to a method for coating a web-shaped carrier material with a mass dispersed in water, wherein the mass applied to the carrier material with a suitable applicator with a mass application of at least 10 g / m 2 (dry) and the subsequent drying of the coated carrier material in a hanging drying plant done.
- the mass to be applied is an adhesive.
- Hanging drying as a downstream drying technology for vacuum drying, is an established drying process from leather production. However, for the drying of water-based adhesive coatings, this technology is novel and completely unknown.
- the application rate of the adhesive coating on the web-shaped carrier material may be between 10 and 1000 g / m 2 (dry), preferably between 20 and 300 g / m 2 (dry). Further preferred are mass orders greater than 150 g / m 2 (dry) and / or up to 300 g / m 2 (dry), especially between 190 g / m 2 and 220 g / m 2 (dry). The numbers given here also correspond approximately to the thickness in ⁇ m of the resulting mass layer.
- Preferred for the coatings are water-dispersed scaffold polymers or compounds having a high solids content and a higher viscosity in order to prevent the coated material from flowing away from the support material which is loosely dried during hanging drying.
- the water-based scaffold polymers or the corresponding compounds can also be modified with commercially available synthetic or natural thickeners, so that the viscosity modified in this way corresponds to the procedural requirements.
- the viscosities of the water-dispersed framework polymers or the corresponding compounds are in a range between 0.001 Pa * s and 1000 Pa * s, preferably between 0.1 Pa * s and 100 Pa * s, measured at room temperature and a shear rate of 100 s . 1 .
- the solids contents of the dispersions of the framework polymers or of the corresponding compounds to be coated are in a range between 25% by weight and 75% by weight, preferably between 50% by weight and 70% by weight.
- the mass to be applied can be present as a primary or secondary dispersion.
- Primary dispersions are polymer dispersions prepared by emulsion polymerization. The monomers are polymerized in the presence of an emulsifier in an aqueous medium.
- Secondary dispersions arise from polymers which are conventionally prepared and then converted in a subsequent step from solution or melt into the aqueous dispersion.
- water-based scaffold polymers which can be used are polyacrylic acid esters, copolymers of polyacrylic acid esters and acrylic acid, styrene-butadienes, styrene-acrylates, butadiene-acrylates, butadiene methacrylates, Butadiene methyl methacrylates, polyvinyl acetate styrene acrylates, ethylene vinyl acetate acrylates, acrylonitrile butadienes, acrylonitrile butadiene styrenes, polyvinyl acetates, polyvinyl acetate acrylates, vinyl acetate-vinyl chloride-ethylene acrylates, vinyl acetate-vinyl chloride ethylene, vinyl acetate-versatate copolymers, Vinyl acetate maleic acid esters, polychloroprenes, acrylonitrile butadiene styrenes, polyester resins, polyurethanes, polyurethane acrylates, epoxy polyurethan
- Water-based styrene block copolymers based on styrene-isoprene-styrene, styrene-butadiene-styrene, styrene-ethylene-butadiene-styrene, styrene-butadiene-butylene-styrene, styrene-ethylene-propylene-styrene and other copolymers are also suitable as scaffold polymers.
- the coated mass can be crosslinked by radiation chemistry, in particular by electron beams.
- the carrier is preferably a film, a paper or a woven fabric onto which the coating is applied on one side.
- the films are essentially polyethylene, polypropylene, polyamide, polyester, polyethylene terephthalate, polyvinyl chloride and other polymers and copolymers which are customary for use as adhesive tape carriers and can be used both as single-layered and multilayered films.
- the composition and thickness of the individual layers may also vary.
- Monoaxially and biaxially oriented polypropylenes are frequently used for applications in which a defined tensile strength is of considerable importance.
- Monoaxially oriented polypropylenes exhibit a particularly good tear strength and low elongation in the longitudinal direction.
- films In order to achieve uniform strength values in the longitudinal and transverse direction, films must be stretched biaxially.
- Both mono- and biaxially oriented polypropylenes and polyethylenes are particularly suitable as a carrier material. The stretching ratios are based on the corresponding requirements. Both blown and flat films can be used.
- the surface energy of the side to be coated should be within a defined range. This can be ensured either via an additional coating with a primer or via a surface treatment. Preference is given to a corona or flame pretreatment with which the desired surface energies can be achieved.
- the surface energy should be in a range of ⁇ 25 to 50 mN / m, preferably ⁇ 30 to 45 mN / m.
- carrier material it is also possible to use all known textile carriers, such as a loop fabric, a velor, a scrim, a woven fabric, a knitted fabric, a PET filament fabric, a polyamide fabric or a nonwoven, where "nonwoven” is at least textile fabric according to EN 29092 (1988) as well as stitchbonded nonwovens and similar systems. Also, lamination fabrics and knitted fabrics can be used. Spacer fabrics are mat-shaped laminates with a cover layer of a fibrous or filament nonwoven fabric, a backing layer and individual layers or tufts of retaining fibers present between these layers, which are needled through the particle layer distributed over the surface of the laminate body and interconnect the cover layer and the backing layer.
- nonwovens are particularly solid staple fiber webs, but also filament, meltblown and spun nonwovens in question, which are usually additionally solidify.
- nonwovens mechanical, thermal and chemical solidification are known. Become in mechanical solidifications the Fibers are usually held together mechanically by turbulence of the individual fibers, by meshing of fiber bundles or by sewing additional threads, so can be achieved by thermal and chemical methods adhesive (with binder) or cohesive (binder-free) fiber-fiber bonds. With suitable formulation and process control, these can be limited exclusively or at least predominantly to fiber nodes, so that a stable, three-dimensional network is formed while maintaining the loose, open structure in the nonwoven.
- Nonwovens have proven to be particularly advantageous, which are solidified in particular by overmilling with separate threads or by intermeshing.
- Such solidified nonwovens are produced, for example, on stitchbonding machines of the "Malivlies" type from Karl Mayer, formerly Malimo, and can be obtained, inter alia, from the companies Naue Fasertechnik and Techtex GmbH.
- a Malivlies is characterized in that a cross-fiber fleece is solidified by the formation of stitches of fibers of the fleece.
- a nonwoven type Kunitvlies or Multiknitvlies can also be used.
- a Kunitvlies is characterized in that it results from the processing of a longitudinally oriented nonwoven fabric to a fabric having on one side mesh and on the other mesh webs or Polfaser-folds, but has neither threads nor prefabricated fabrics. Also, such a nonwoven fabric has been produced for example for some time on stitchbonding machines of the "Kunitvlies" type from Karl Mayer. Another characteristic feature of this nonwoven is that it can absorb high tensile forces in the longitudinal direction as longitudinal fiber fleece.
- a Multiknitvlies is compared to the Kunitvlies characterized in that the fleece by the piercing on both sides with needles on both the top and on the bottom undergoes a solidification. Finally, sewing nonwovens are suitable as a precursor to form an inventive adhesive tape.
- a stitchbonded web is formed from a nonwoven material having a plurality of seams running parallel to one another. These seams are created by sewing or stitching of continuous textile threads.
- nonwoven stitching machines of the type "Maliwatt” the company Karl Mayer, formerly Malimo, known. Then the Caliweb® is perfectly suitable.
- the Caliweb® consists of a thermally fixed non-woven Multiknit with two outer mesh layers and an inner pole layer, which are arranged perpendicular to the mesh layers.
- a staple fiber fleece which is preconsolidated by mechanical processing in the first step or which is a wet fleece which has been hydrodynamically laid, 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 nonwoven fabric is characterized in that the fibers are wet-laid or, for example, a staple fiber fleece is preconsolidated by the formation of loops of fibers of the fleece or by needling, sewing or air and / or water jet machining.
- the heat-setting takes place, wherein the strength of the nonwoven fabric is further increased by the melting or melting of the melt fibers.
- the solidification of the nonwoven backing can also be achieved without binders, for example by hot embossing with structured rolls, wherein properties such as strength, thickness, density, flexibility and the like can be controlled by way of pressure, temperature, residence time and the embossing geometry.
- binders for example by hot embossing with structured rolls, wherein properties such as strength, thickness, density, flexibility and the like can be controlled by way of pressure, temperature, residence time and the embossing geometry.
- the textile carrier in particular polyester, polypropylene, viscose or cotton fibers are provided. However, the choice is not limited to the materials mentioned, but it can, recognizable to those skilled without having to be inventive, a variety of other fibers for the production of the web can be used.
- wear-resistant polymers such as polyesters, polyolefins, polyamides or glass or carbon fibers are used.
- Carriers made of impregnated or highly glued paper (creped and / or uncreped), of a laminate or of sheet-like foams (for example of polyethylene and polyurethane) are also suitable as carrier material.
- both papers having higher longitudinal extensibility than cross extensibility and papers having higher transverse extensibility than longitudinal extensibility can be used in both bleached and environmentally friendly unbleached versions.
- the surfaces of the supports may be chemically or physically pretreated, as well as the back side of which may be subjected to an anti-adhesive physical treatment or coating.
- the web-shaped carrier material may be a double-sidedly antiadhesive coated material, such as a release paper or a release film, also called a liner or release material, if the adhesive layer, in particular after crosslinking, is to be used as a carrierless double-sided adhesive self-adhesive tape.
- a double-sidedly antiadhesive coated material such as a release paper or a release film, also called a liner or release material, if the adhesive layer, in particular after crosslinking, is to be used as a carrierless double-sided adhesive self-adhesive tape.
- the process for producing pressure-sensitive adhesive tapes is thus particularly advantageously suitable in that pressure-sensitive adhesives are applied to support materials on one or both sides.
- a suitable plant to carry out the process according to the invention consists of a depending on the viscosity of the mass to be coated coating unit, preferably a doctor metering system or brush bar with comma or doctor blade, preferably followed by a horizontally arranged pre-drying, in particular an infrared dryer can.
- predrying it can be achieved that the coating is modified in its viscosity to an extent so that it can not run off of the carrier material.
- a corona pretreatment of the carrier material can take place before the commissioned work.
- the coated support material is retracted into a hanging dryer with several drying zones, preferably around ten, with different drying temperatures, preferably between 30 ° C. and 70 ° C.
- the electron beam or UV curing can be followed by the drying channels, with which influence can be exerted on the cohesion of the coating.
- a carrier can be laminated on a laminating unit.
- This carrier can be an anti-adhesively treated carrier material. If the coating is carried out on an antiadhesive carrier material, a non-anti-adhesively treated carrier can also be laminated in the laminating unit.
- the retracted into the slopes for drying support material may have a length of 50 to 5000 m, preferably 500 to 2000 m.
- the residence time in the suspension is preferably 0.2 to 5 hours, more preferably 0.5 to 2 hours, depending on the rate.
- Conventional coating speeds are in a range between 5 and 500 m / min, preferably 20 and 200 m / min.
- the process according to the invention is preferably carried out continuously in one operation.
- test was carried out in accordance with PSTC-7.
- a 1.3 cm wide strip of pressure-sensitive adhesive tape is glued to a 2 cm long polished steel plate with a 2 kg roll by double rolling twice. This corresponds to a bond area of 260 mm 2 .
- the slides are equilibrated for 30 min under test conditions (temperature and humidity) but without load. Then the test weight is added (for example, 1 kg) so that a shear stress is generated parallel to the bond area, and the time is measured until the bond fails. If a holding time of 10,000 minutes is reached, the test is stopped before failure of the adhesive bond.
- the viscosity measurement of the coating composition is carried out with a Rheometrics ARES at room temperature or 40 ° C and at a shear rate of 100 s -1 with a 50 mm diameter cone and plate system.
- Adhesive forces are determined at a deduction angle of 180 ° according to AFERA 4001 on (if possible) 20 mm wide test strips. This steel plates are after
- AFERA standard used as test substrate.
- polyethylene is used as the test.
- Acronal V205 aqueous dispersion of a carboxyl-containing acrylic ester copolymer based on butyl acrylate having a solids content of 69% by weight, BASF
- BASF aqueous dispersion of a carboxyl-containing acrylic ester copolymer based on butyl acrylate having a solids content of 69% by weight, BASF
- Latekoll D disersion of a carboxyl group-containing acrylic acid ester copolymer in water, BASF
- the compound thus obtained is made slightly alkaline with ammonia, so that the thickening properties of Latekoll D become effective.
- the resulting dispersion PSA is coated with a doctor blade with a gap of 50 microns on a 25 micron thick corona-pretreated polyethylene terephthalate film with a layer thickness of 250 g / m 2 (dry).
- the coated material is fed into a pre-drying channel and pre-dried by means of an infrared source. Subsequently, the main drying takes place in a hanging dryer with different drying zones. Following the main drying, the coated material is run into an electron beam curing unit. The thus crosslinked material is then laminated with siliconized release paper and wound up into a roll.
- Machine production coating plant Support web speed: 50 m / min Traction processing: 600 N Commissioned by: Spreading table with spanking knife Drying: predrying infrared
- Main drying hanging drying with 10 drying zones 1st zone 30 ° C 2nd zone 30 ° C 3rd zone 40 ° C 4th zone 40 ° C 5th zone 50 ° C 6th zone 50 ° C 7. Zone 60 ° C 8. Zone 70 ° C 9th zone 70 ° C 10th zone 50 ° C Networking: Acceleration voltage. 230 kV Dose: 10 KGy
- Adhesive strength steel 300 mm / min: 7.5 N / cm
- Adhesive strength polyethylene 30 mm / min: 4.2 N / cm Shear life at room temperature (RT) (1 kg / 260 mm 2 ): 55 min Shear life at 40 ° C (1 kg / 260 mm 2 ): 36 min
- Polytex WP 5000 (Avery Dennison aqueous dispersion of carboxyl containing acrylic acid ester copolymer having a solids content of 65% by weight) is mixed with 0.3% by weight (based on solids content) of Latekoll D.
- the compound thus obtained is made slightly alkaline with ammonia, so that the thickening properties of Latekoll D become effective.
- the resulting dispersion PSA is coated with a doctor blade with a gap of 65 microns on a siliconized release paper with a layer thickness of 220 g / m 2 (dry). Subsequently, the main drying takes place in a hanging dryer with different drying zones. The main drying is followed by a lamination process in which a 25 micron thick corona pretreated polyethylene terephthalate film is laminated. The laminated material is wound up into a roll.
- Adhesive strength steel (300 mm / min): 12 N / cm
- Adhesive strength polyethylene (30 mm / min): 5.5 N / cm Shear life at RT (1 kg / 260 mm 2 ): 29 min Shear life at 40 ° C (1 kg / 260 mm 2 ): 7 min
- Orgal AX 1203 polyacrylate dispersion based on butyl acrylate having a solids content of 67% by weight, Organik Kimya
- Collacral HP aqueous solution of a copolymer based on acrylic acid and acrylamide , emulsified in aliphatic petroleum fraction having a solids content of 29 wt .-%, BASF
- the resulting dispersion PSA is coated with a doctor blade with a gap of 80 .mu.m on a 25 micron thick corona-pretreated polyethylene terephthalate film with a layer thickness of 400 g / m 2 (dry).
- the coated material is fed into a pre-drying channel and pre-dried by means of an infrared source. Subsequently, the main drying takes place in a hanging dryer with different drying zones.
- the coated material is then laminated with siliconized release paper and wound up into a roll.
- Adhesive data Adhesive Steel (300 mm / min): 6.6 N / cm
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Claims (12)
- Procédé de revêtement d'un matériau de support en forme de bande par une masse dispersée dans l'eau,
la masse étant appliquée sur le matériau de support par un système d'application approprié avec un application de la masse d'au moins 10 g/m2 (à sec) et
le séchage ensuite du matériau de support revêtu ayant lieu suspendu dans une installation de séchage,
la masse à appliquer étant une substance adhésive. - Procédé selon la revendication 1, caractérisé en ce que
l'application de la masse sur le matériau de support se situe entre 10 et 1000 g/m2 (à sec), de préférence entre 20 et 300 g/m2 (à sec). - Procédé selon la revendication 1 ou 2, caractérisé en ce que
la viscosité de la masse dispersée se situe entre 0,001 Pa*s et 1000 Pa*s, de préférence entre 0,1 Pa*s et 100 Pa*s, mesurée à la température ambiante et une vitesse de distorsion de 100 s-1, et la teneur en matière solide de la masse dispersée se situe dans une plage entre 25% en poids et 75% en poids, de préférence entre 50% en poids et 70% en poids. - Procédé selon au moins une des revendications 1 à 3, caractérisé en ce que
la masse est rendue plus épaisse avant le revêtement au moyen d'épaississant. - Procédé selon au moins une des revendications précédentes, caractérisé en ce que
la masse revêtue peut être physiquement liée, notamment au moyen de rayons électroniques. - Procédé selon au moins une des revendications précédentes, caractérisé en ce que
le matériau de support peut être une feuille, un papier, un tissus ou un non-tissé ou un support muni d'antiadhésif. - Procédé selon au moins une des revendications précédentes, caractérisé en ce que
le système d'application met en oeuvre un système de dosage à racle, une lambourde à racle ou un couteau racloir. - Procédé selon au moins une des revendications précédentes, caractérisé en ce qu'il existe
un canal de préséchage, notamment un séchage par infrarouges, disposé horizontalement entre le système d'application et le séchage suspendu. - Procédé selon au moins une des revendications précédentes, caractérisé en ce que
avant le système d'application, on effectue un traitement par Corona du matériau de support. - Procédé selon au moins une des revendications précédentes, caractérisé en ce que
après le séchage suspendu, on effectue un durcissement de la masse par rayons électroniques ou UV. - Procédé selon au moins une des revendications précédentes, caractérisé en ce que
après le séchage suspendu et éventuellement le durcissement existant par rayons électroniques ou UV, il est possible de pelliculer un support au moyen d'un système de pelliculage. - Procédé selon au moins une des revendications précédentes pour la fabrication de bandes adhésives par contact, dans lequel on applique des masses adhésives par contact sur un côté ou sur les deux côtés de matériaux de support.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008036926A DE102008036926A1 (de) | 2008-08-08 | 2008-08-08 | Verfahren zum Beschichten von bahnförmigen Trägermaterialien mit hohem Masseauftrag |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2151484A2 EP2151484A2 (fr) | 2010-02-10 |
EP2151484A3 EP2151484A3 (fr) | 2010-06-02 |
EP2151484B1 true EP2151484B1 (fr) | 2013-03-20 |
Family
ID=41296217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09166351A Active EP2151484B1 (fr) | 2008-08-08 | 2009-07-24 | Procédé de revêtement de matériaux de support en forme de bande ayant une charge de masse élevée |
Country Status (4)
Country | Link |
---|---|
US (1) | US20100032089A1 (fr) |
EP (1) | EP2151484B1 (fr) |
DE (1) | DE102008036926A1 (fr) |
ES (1) | ES2406755T3 (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202006016438U1 (de) † | 2006-10-11 | 2008-02-14 | Coroplast Fritz Müller Gmbh & Co. Kg | Kabelwickelband, insbesondere für den Motorenraum eines Automobils |
US20120168068A1 (en) * | 2010-12-29 | 2012-07-05 | Saint-Gobain Technical Fabrics America, Inc. | Contourable core fabric and method of making same |
DE102011075160A1 (de) * | 2011-05-03 | 2012-11-08 | Tesa Se | Verfahren zur Herstellung eines Klebebandes insbesondere zum Umwickeln von Kabeln aus einem offenen textilen Träger und einer darauf einseitig beschichteten Haftklebemasse |
DK2720862T3 (en) | 2011-06-17 | 2016-09-19 | Fiberweb Inc | Vapor permeable, water impervious TOTAL MAJOR MULTI-LAYER ARTICLE |
WO2012178027A2 (fr) | 2011-06-23 | 2012-12-27 | Fiberweb, Inc. | Article multicouches perméable à la vapeur d'eau, mais essentiellement imperméable à l'eau |
WO2012177996A2 (fr) | 2011-06-23 | 2012-12-27 | Fiberweb, Inc. | Article multicouches perméable à la vapeur d'eau, mais essentiellement imperméable à l'eau |
EP2723567A4 (fr) | 2011-06-24 | 2014-12-24 | Fiberweb Inc | Article multicouches perméable à la vapeur d'eau, mais essentiellement imperméable à l'eau |
DE102012203249A1 (de) | 2012-03-01 | 2013-09-05 | Tesa Se | Verwendung eines latentreaktiven Klebefilms zur Verklebung von eloxiertem Aluminium mit Kunststoff |
EP2636707A1 (fr) | 2012-03-07 | 2013-09-11 | HILTI Aktiengesellschaft | Procédé de fabrication dýune dispersion |
WO2014179878A1 (fr) * | 2013-05-06 | 2014-11-13 | Rjg Labs Inc. | Tunnel de chaleur sans source d'inflammation |
DE102013217880A1 (de) * | 2013-09-06 | 2015-03-12 | Tesa Se | Latentreaktive Klebeprodukte mit verbesserter Stanzbarkeit und latentreaktive Klebfolienstanzlinge |
KR101830372B1 (ko) * | 2015-09-01 | 2018-02-20 | 삼성전자주식회사 | 냉장고 |
CN106753000A (zh) | 2015-11-25 | 2017-05-31 | 德莎欧洲公司 | 具有改善的耐湿热性的粘合 |
DE102017221670A1 (de) | 2017-11-28 | 2019-05-29 | Tesa Se | Latent reaktiver Klebefilm enthaltend mindestens eine Substanz / einen Stoff / eine Komponente, der / die die Oberflächenspannung einer Flüssigkeit und / oder die Grenzflächenspannung zwischen zwei Phasen herabsetzen kann |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE608275C (de) * | 1933-04-09 | 1935-01-22 | Herfurth & Co Ingenieurbuero | Einrichtung zum Trocknen von lackierten Blechen in Bandform |
US2726967A (en) * | 1948-10-23 | 1955-12-13 | Permacel Tape Corp | Paper backed adhesive tape |
US2592550A (en) * | 1949-10-06 | 1952-04-15 | Ind Tape Corp | Flexible pressure-sensitive adhesive products |
US2963387A (en) * | 1957-12-24 | 1960-12-06 | Johnson & Johnson | Pressure-sensitive adhesive tape and method of manufacture |
DE1211786B (de) * | 1962-05-12 | 1966-03-03 | Herberts & Co Gmbh Dr Kurt | Verwendung einer Furnierverbindungsfolie |
US3287822A (en) * | 1964-01-28 | 1966-11-29 | Du Pont | Drying apparatus |
DE2427355C3 (de) | 1974-06-06 | 1980-04-03 | Beiersdorf Ag, 2000 Hamburg | Vorrichtung zum Trocknen von bahnförmigen Materialien |
US4872270A (en) * | 1988-03-09 | 1989-10-10 | Eastman Kodak Company | Drying process |
US5059479A (en) * | 1989-12-29 | 1991-10-22 | National Starch And Chemical Investment Holding Corporation | Pressure-sensitive adhesive emulsion composition and a kraft tape using it |
JP2922036B2 (ja) * | 1991-10-31 | 1999-07-19 | 日東電工株式会社 | 耐熱性にすぐれた感圧性接着剤およびその接着シート類の製造方法 |
US5391602A (en) * | 1993-11-30 | 1995-02-21 | National Starch And Chemical Investment Holding Corporation | Radiation-cured pressure sensitive adhesives |
US6136903A (en) * | 1997-10-09 | 2000-10-24 | Avery Dennison Corporation | Repulpable, pressure-sensitive adhesive compositions |
JP5095150B2 (ja) * | 2006-08-03 | 2012-12-12 | 日東電工株式会社 | 水性感圧接着剤組成物およびその利用 |
-
2008
- 2008-08-08 DE DE102008036926A patent/DE102008036926A1/de not_active Withdrawn
-
2009
- 2009-07-24 EP EP09166351A patent/EP2151484B1/fr active Active
- 2009-07-24 ES ES09166351T patent/ES2406755T3/es active Active
- 2009-07-27 US US12/509,948 patent/US20100032089A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE102008036926A1 (de) | 2010-02-11 |
EP2151484A2 (fr) | 2010-02-10 |
ES2406755T3 (es) | 2013-06-10 |
US20100032089A1 (en) | 2010-02-11 |
EP2151484A3 (fr) | 2010-06-02 |
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