EP3368247A1 - Non-tissé abrasif et son procédé de fabrication - Google Patents

Non-tissé abrasif et son procédé de fabrication

Info

Publication number
EP3368247A1
EP3368247A1 EP16790558.7A EP16790558A EP3368247A1 EP 3368247 A1 EP3368247 A1 EP 3368247A1 EP 16790558 A EP16790558 A EP 16790558A EP 3368247 A1 EP3368247 A1 EP 3368247A1
Authority
EP
European Patent Office
Prior art keywords
unit
nonwoven
abrasive
yarn
web
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
Application number
EP16790558.7A
Other languages
German (de)
English (en)
Other versions
EP3368247B1 (fr
Inventor
Martin Joppich
Achim JÄGER
Jörn-Oliver NOLTE
Markus Flory
Andreas Lange
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.)
VSM Vereinigte Schmirgel- und Maschinen-Fabriken AG
Original Assignee
VSM Vereinigte Schmirgel- und Maschinen-Fabriken AG
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 VSM Vereinigte Schmirgel- und Maschinen-Fabriken AG filed Critical VSM Vereinigte Schmirgel- und Maschinen-Fabriken AG
Publication of EP3368247A1 publication Critical patent/EP3368247A1/fr
Application granted granted Critical
Publication of EP3368247B1 publication Critical patent/EP3368247B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/001—Manufacture of flexible abrasive materials
    • B24D11/005—Making abrasive webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
    • B24D3/28—Resins or natural or synthetic macromolecular compounds

Definitions

  • the invention relates to a nonwoven abrasive fabric and a method for its production.
  • EP 0 912 294 Bl the usual process steps for the preparation of a grinding are described.
  • the starting material is first subjected to web formation and then to a subsequent web consolidation. At the end of these steps, the web is a pre-bonded web that does not yet contain any abrasive particles. The web is then passed through an adhesive coater and then through a particle coater to remove the abrasive particles
  • the adhesive is a suitable synthetic resin, which cures in a heat stage and then binds the abrasive particles to the starting material.
  • the object of the invention is therefore to improve the homogeneity and the reproducibility of the produced nonwoven fabric. This object is solved by the features of patent claim 1 and claim 12. Preferred embodiments are specified by the subclaims 2-11.
  • the inventive method is a method for
  • nonwoven abrasive web Production of a nonwoven abrasive web, in which nonwoven fibers of a specific starting material are subjected to the process steps of web formation and subsequent nonwoven bonding, wherein the nonwoven fibers are subjected to the
  • Nonwoven bonding process step with abrasive grains are coated so that the abrasive grains adhere to the starting material.
  • An essential finding of the invention is thus to apply the abrasive grains to the nonwoven fibers prior to web formation and / or prior to final web bonding. It has been shown that this is the
  • Applying the abrasive grains can be done much more evenly on the nonwoven fibers, since the nonwoven fibers are still accessible in a separated state.
  • the web formation takes place with a carding process and / or with an aerodynamic process.
  • the nonwoven bonding takes place by means of a swirling process, for example with a water-jet swirling process. Since the material supplied to the web bonding is already mixed according to the invention with abrasive grains, the
  • Water jet turbulence in this context has the particular advantage that it is hardly necessary to intervene in the nonwoven material.
  • the same advantages can also be achieved in nonwoven bonding with a thermal process, for example with ultrasonic solidification.
  • a thermal process for example with ultrasonic solidification.
  • Verwirbelungsvon and thermal processes in the web bonding can also be used in combination.
  • the abrasive grains are applied directly to the not yet fully cured abrasive fibers.
  • the nonwoven fibers prior to coating with the abrasive grains, are coated with a synthetic resin which inhibits adhesion between
  • a light-curing resin is used as the synthetic resin.
  • the nonwoven fibers are coated continuously. But it is also conceivable that the nonwoven fibers are coated intermittently. The intermittent coating may be particularly advantageous if the average diameter of the abrasive grains is in the range of the mean diameter of the abrasive fibers or greater than this, so that it is desirable to provide a controlled distance along the nonwoven fiber between the abrasive grains.
  • FIG. 1 shows a detailed view of the coating unit 109 from FIG. 1, a first variant of the installation from FIG. 1, a second variant of the installation from FIG. 1, and a third variant of the installation from FIG Fig. 1 shows the overall view of a plant for the production of abrasive yarn.
  • the plant consists of a mixing unit 101, an extruder 103, a spinneret 105, a bundling unit 107, a coating unit 109 and a
  • Nonwoven consolidation unit 115 is a Nonwoven consolidation unit 115.
  • the mixing unit 101 is connected to the extruder 103 via the connecting flange 102. In the mixing unit can mixed different granules and then fed to the extruder 103 in a mixed form.
  • polyesters or polyamides such as nylon (PA 6.6 having the chemical name polyhexamethylene adipamide) may be used.
  • nylon PA 6.6 having the chemical name polyhexamethylene adipamide
  • other polyamides are:
  • PA 69 hexamethylenediamine / azelaic acid
  • PA 612 hexamethylenediamine / dodecanedioic acid
  • PA 11 (11-aminoundecanoic acid)
  • PA 12 (laurolactam or ⁇ -aminododecanoic acid)
  • PA 46 tetramethylenediamine / adipic acid
  • PA 1212 (dodecanediamine / dodecanedioic acid)
  • PA 6/12 (caprolactam / laurolactam)
  • the granules are compacted under high pressure and made to melt.
  • the molten granules are then fed via the melt channel 104 of the spinneret 105.
  • the spinneret 105 is maintained at the required spinning temperature by a heating unit, not shown further (for example, at 290 ° C for nylon).
  • the spinneret 105 has a plurality of spinning orifices which have a suitable diameter depending on the viscosity of the melt in order to be able to spin continuous filaments. For nylon, the diameter per spinning aperture
  • the number of spinning openings can vary widely depending on the required strength and the required diameter of the grinding yarn. starting with a single spinning opening up to several 100 spinning openings. The spinning opening itself can be shaped differently. In addition to a circular
  • Opening for example, a star-shaped opening is conceivable to improve in this way, for example, the surface adhesion of the resin or binder.
  • the threads 106 spun by the spinneret are then gathered together at the inlet of the bundling unit 107 where they are mixed together to form a coherent yarn 108 and stretched.
  • Bundling unit 107 is described below with reference to
  • FIG. 2 Below the bundling unit 107, A marks a first process interface.
  • the first process interface A is intended to indicate that there are various possibilities at this point, the yarn 108
  • One possibility consists in the manner shown in FIG. 1, i. the direct further processing in the coating unit 109.
  • Another possibility is to wind the yarn 108 on the first process interface A on coils and to store these coils until further processing.
  • the bundle 108 bundled by the bundling unit 107 is then fed to a coating unit 109, in which the yarn 108 is coated with a resin and equipped with abrasive grains.
  • Coating unit 109 is described below with reference to FIG. 3.
  • B denotes a second process interface.
  • the second process interface B should in turn indicate that there are also various options at this point, the
  • Sanding fleece are further processed.
  • Abrasive yarn 112 at the second process interface B is that the abrasive yarn 112 is wound up and then further processed by a weaving process into a fabric abrasive.
  • the material 113 deposited on the conveyor belt 110 is then fed to a nonwoven consolidation unit 115, in which the loose fibers are solidified into a coherent nonwoven abrasive web.
  • Web bonding unit 115 is described below with reference to FIG. 4th Before the web bonding unit 115, a third process interface is marked C.
  • the third process interface C should in turn indicate that there are also various options at this point
  • Liquid application used. A light one
  • the thermal hardening takes place with drum furnaces.
  • the nonwoven fibers are solidified with hot air.
  • the through-flow drying process is based on a combination of sieve drum and centrifugal fan. The fan sucks the air out of the sieve drum and transfers it
  • the hydroentanglement includes, in addition to the central solidification unit with several water bars further downstream spunlace drums and a compacting and drainage system.
  • Needle machines for nonwoven bonding can be designed as Einbrettoder double board variants. Both can be used with needle-punching from top to bottom or from bottom to top. For some applications, a tandem machine is conceivable in which a board from above and a board works from below.
  • D denotes a fourth process interface.
  • Process interface D is the finished one
  • the main controller 114 is connected to the components described in the manner shown to measure and control the relevant process parameters.
  • FIG. 2 shows a detailed view of the bundling unit 107 from FIG. 1.
  • the freshly spun threads are first gathered at the ring opening 201.
  • Another object of the ring opening 201 is to center the gathered threads with respect to the subsequent suction jet unit 202.
  • the ring opening 201 in the plane perpendicular to
  • the suction jet unit 202 consists of a
  • Longitudinal guide unit 203 from an air injector unit 204 and from a compressed air connection 205.
  • Inner diameter of the longitudinal guide unit 203 is something smaller (for example, 2 mm) than the inner diameter of the air injector unit 204 (for example, 3 mm).
  • Compressed air connection 205 is compressed air with a pressure of, for example, 7 kg / cm 2 connected, so that the
  • Compressed air follows the indicated path according to the arrows 206. In this way, a high-speed suction jet is produced in the air injector unit 204.
  • Flow rate in the middle of the channel can be several kilometers / minute.
  • Flow rate in the middle of the channel is for example 3000 m / min.
  • the suction jet deters the freshly spun threads 106 and at the same time causes a crimping of the threads
  • Flow velocity of the air has a certain slip (for example, 10%), the speed of the yarn is correspondingly smaller (for example, 2700 m / min) than that of the air flow (as mentioned above, for example, 3000 m / min).
  • the air injector unit 204 Within the air injector unit 204, flow turbulences and turbulences are formed around the semi-solid filaments, causing the semi-solid filaments to mix, harden and thus form a coherent yarn. In addition, the air flow within the air injector unit 204 exerts a suction effect on the yarn, so that the yarn
  • FIG. 3 shows a detailed view of the coating unit 109 from FIG. 1.
  • the coating unit 109 basically comprises a take-off roller unit 301, a
  • Dancer roller unit 302 a primer coating nozzle 303, an abrasive coating nozzle 304, a UV irradiation unit 307, and a control measurement unit 308.
  • Bundling unit 107 leaves, ensures the
  • Take-off roller unit 301 The take-off rollers 301 are controlled in their speed such that a loose yarn tension in the transport direction is set within the yarn 108 at the entrance of the coating unit 109.
  • a dancer roll unit 302 is provided in the known manner.
  • the primer coating die 303 contains a primer or adhesive 305 such that an adhesive layer is formed on the yarn 108 as the yarn 108 passes through the primer coating die 303.
  • the adhesive layer improves the adhesion and adhesion of the
  • the thickness of the adhesive layer may be determined by the feed rate of the adhesive 305 and optionally also by an adjustable
  • Diameter of the primer coating die 303 can be adjusted.
  • the adhesive layer yarn 108 is then passed through the abrasive coating die 304, which has a
  • Mixture 306 consisting of a light-curing resin, abrasive grains and a filler.
  • Mixture 306 adheres to the adhesive layer, so that the outer diameter of the desired abrasive layer
  • the thickness of the abrasive layer can by the feed rate of the mixture 306 and optionally also by an adjustable diameter of the
  • Abrasive coating die 304 can be adjusted.
  • Abrasive coating nozzle 304 each have controllable closures, which retain or release the coating material in the desired manner.
  • the yarn 108 enters the UV irradiation unit 307 behind the abrasive coating die 304, so that the photo-curing resin hardens and holds the abrasive grains together.
  • the wavelength of the UV light of the UV irradiation unit 307 depends on the
  • each resin and may for example be in the range of 200 nm to 500 nm. Usually, the curing of the resins used here takes place in one
  • the grinding yarn formed in this way happens
  • control measuring unit 308 which measures the outer diameter of the grinding yarn.
  • Coating control unit 309 is connected to the described components as shown to measure and control the relevant process parameters. Above all, the outer diameter measured by the control measuring unit 308 is evaluated, so that due to this
  • the atmosphere within the coating unit 109 may additionally consist of nitrogen or an oxygen-reduced gas in order to achieve a stable polymerization of the
  • the yarn 108 can be produced at very high speeds. In principle, speeds of several 100 meters / minute to several kilometers / minute are possible so that the production speed in the
  • Coating unit 109 can be adapted to the speed of emerging from the bundling unit 107 yarn.
  • any suitable material capable of increasing the mechanical strength or the abrasion resistance of the photocuring resin without using the curing process can be used
  • the filling material thus exerts a kind of support function on the abrasive grains.
  • abrasive grains having a smaller average diameter than the abovementioned abrasive grains can thus also be used as the filling material.
  • powder consisting of metal oxide, metal carbide or non-metal oxide or carbide or of metals may be advantageous depending on the application.
  • fine abrasive grains having an average diameter of about 2 ym to 10 ym are used.
  • the abrasive grains may be made of alumina, silicon carbide, CBN, diamond, zirconia corundum, etc.
  • the average diameter of the grains can be selected depending on the grinding application.
  • the abrasive grains may have an average diameter of 20 ym to 200 ym, which in the abrasive range would correspond to a grain size in the range of about P800 to P80.
  • the abrasive grains are added at about 5 volume percent of the photocuring resin liquid and may be pre-wetted with a small amount of ethyl alcohol beforehand.
  • the light-curing resin liquid may be, for example, an acrylate prepolymer (an oligomer or a
  • the light-curing is based
  • Synthetic resin liquid on a radical polymerization wherein the radical polymerization of the oligomer or
  • Monomer is induced by a free radical generated by the photoinitiator, which is irradiated by the ultraviolet light.
  • the oligomer, the monomer and the photoinitiator are not limited to these.
  • Styrene can be used as the monomer.
  • the oligomer may also be used
  • Polyester acrylate, polyether acrylate, Acryloligomeracrylat, epoxy acrylate, Polybutadienacrylat, silicone acrylate or polyurethane acrylates are used.
  • the monomer for example, N-vinylpyrolidone, vinyl acetate, monofunctional acrylate, bifunctional acrylate or trifunctional acrylate may also be used.
  • Polymerization initiator may, for example, a
  • Acetophenone derivative such as acetophonon or Trichloroacetophenone, benzoin ether, benzophenone or xanthone.
  • FIG. 4 shows a detailed view of the web stabilization unit 115 from FIG. 1.
  • the aim of web bonding is to make a voluminous, soft nonwoven a thinner and a firm sheet.
  • crank mechanism 403 consisting of eccentrics and connecting rods and over
  • the needle bar 404 constantly guides one at each revolution of the crankshaft
  • Stroke frequency and amplitude, with stroke frequency and amplitude via the control unit 114 are adjustable.
  • Numerous needles are in the so-called needle boards after one Arranging arrangement orthogonal to the board level parallel to each other.
  • the needle board itself is on
  • Needle bar 404 attached, which extends as a rigid carrier over the working width.
  • the needles puncture the fleece from above, it supports the lower perforated plate as a throat plate 406 against puncture forces from above.
  • the perforated plate arranged in parallel above it, the so-called hold-down 407, strips it against the withdrawal forces of the needles.
  • the surfaces of throat plate and downholder are smooth, guide the fleece and form over their adjustable distance the space for the pass.
  • a 405 take-off roller drives that
  • the grinding yarn 112 can be guided at the second process interface B, for example, by an eyelet, which is perpendicular to the traverse along a traverse
  • Movement direction v is moved back and forth. In the same way it is also possible that the whole
  • Coating unit 109 or vice versa the conveyor belt 110 are moved back and forth accordingly. Additionally or alternatively, an air flow unit can be used to deposit the grinding yarn 112 at different positions of the conveyor belt 110 by means of a selectively varying air flow.
  • Movement direction a plurality of nozzles 105 and a
  • FIG. 5 shows a first variant of the system from FIG. 1 for this purpose
  • FIG. 1 Components can be referred to the description of FIG. 1. In contrast to Fig. 1 are now
  • Spinnerets 105a, 105b, 105c provided, which may be identical or different, in such a way that over the entire width of the conveyor belt 110, the desired storage of the grinding yarn 112 is formed.
  • the spinnerets can produce identical or different filament diameters.
  • Fig. 6 shows a second variant of the system of Fig. 1 with a drawing unit 601, with a
  • the process interfaces A, B, C and D basically correspond to the process interfaces A, B, C and D
  • Drawing unit 601 and the equipment unit 602 different variants conceivable, which are explained in more detail here.
  • the stretching unit 601 may be implemented like the bundling unit 107, as shown in detail in FIG.
  • the equipment unit 602 may be implemented like the coating unit 109, as shown in detail in FIG.
  • the solidification unit 605 which according to the
  • web stabilizing unit 115 may be performed.
  • the synthetic resin and the primer are entirely dispensed with in the equipment unit 602 and the abrasive grains are applied directly to the not yet fully cured yarn or the plasticized material
  • Garnober Structure be applied.
  • a coating die may be used, as described in accordance with the abrasive coating die 304 in FIG. Additionally or alternatively, it is also possible to electrostatically associate the abrasive grains with the yarn, similar to the way it is done with flat abrasives on a substrate.
  • a further variant consists in that the drying or hardening of the synthetic resin takes place only after the grinding yarn has been deposited on the conveyor belt 603.
  • Curing can be carried out by means of UV radiation or else by means of conventional thermal drying or otherwise drying.
  • a thermal drying unit 604 above the conveyor belt 603 is shown as an example in FIG.
  • the basic idea of this variant is that the state of the not yet completely cured abrasive yarn is exploited, to bring about when depositing on the conveyor belt 603 immediately a certain hardening.
  • Fig. 7 shows a third variant of the system of Fig. 1 with a drawing unit 701, with a
  • the process interfaces A, C and D basically correspond to the process interfaces A, C and D of Fig. 1, so that the drawing unit 701 as the
  • Bundling unit 107 may be executed, as shown in detail in Fig. 2. The same applies to the
  • Solidification unit 705, which may be performed according to the non-woven bonding unit 115 shown in detail in FIG. 4.
  • the yarn is now already deposited behind the first process interface A on the conveyor belt 703. Once the deposited yarn passes the equipment unit 702, the abrasive grain 706 is scattered or sprayed onto the deposited yarn. in the

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

L'invention concerne un procédé de fabrication de non-tissé abrasif, consistant à soumettre des fibres d'un matériau de départ spécifique à des étapes de formation d'un non-tissé et de consolidation subséquente du non-tissé. Afin d'améliorer l'homogénéité et la reproductibilité du non-tissé abrasif obtenu, on revêt de grains abrasifs les fibres du non-tissé, avant l'étape de formation du non-tissé et/ou avant l'étape de consolidation du non-tissé, de telle manière que les grains abrasifs adhèrent au matériau de départ.
EP16790558.7A 2015-10-28 2016-10-28 Procédé de fabrication de non-tissé abrasif Active EP3368247B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15191975.0A EP3162502A1 (fr) 2015-10-28 2015-10-28 Non-tisse abrasif et son procede de fabrication
PCT/EP2016/076061 WO2017072293A1 (fr) 2015-10-28 2016-10-28 Non-tissé abrasif et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP3368247A1 true EP3368247A1 (fr) 2018-09-05
EP3368247B1 EP3368247B1 (fr) 2023-06-28

Family

ID=54476708

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15191975.0A Withdrawn EP3162502A1 (fr) 2015-10-28 2015-10-28 Non-tisse abrasif et son procede de fabrication
EP16790558.7A Active EP3368247B1 (fr) 2015-10-28 2016-10-28 Procédé de fabrication de non-tissé abrasif

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP15191975.0A Withdrawn EP3162502A1 (fr) 2015-10-28 2015-10-28 Non-tisse abrasif et son procede de fabrication

Country Status (7)

Country Link
US (1) US10843309B2 (fr)
EP (2) EP3162502A1 (fr)
KR (1) KR20180075578A (fr)
CN (1) CN108290275A (fr)
BR (1) BR112018008664A2 (fr)
FI (1) FI3368247T3 (fr)
WO (1) WO2017072293A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019207822A1 (de) 2019-05-28 2020-12-03 Robert Bosch Gmbh Verfahren zur Herstellung eines Schleifartikels sowie Schleifartikel
US20230136260A1 (en) 2020-02-28 2023-05-04 Wendt Poliertechnik Gmbh & Co. Kg Polishing tool
DE202020000786U1 (de) 2020-02-28 2021-05-31 Wendt Poliertechnik Gmbh & Co. Kg Polierwerkzeug
DE102020001283A1 (de) 2020-02-28 2021-09-02 Wendt Poliertechnik Gmbh & Co. Kg Polierwerkzeug

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Publication number Priority date Publication date Assignee Title
US2375585A (en) * 1943-05-14 1945-05-08 James H Rhodes & Company Plastic abrasive pad
DE1694594C3 (de) * 1960-01-11 1975-05-28 Minnesota Mining And Manufacturing Co., Saint Paul, Minn. (V.St.A.) Reinigungs- und Polierkörper
US3016294A (en) * 1959-04-21 1962-01-09 Norton Co Abrasive product
US3020139A (en) * 1960-04-18 1962-02-06 Norton Co Abrasive product
US3324609A (en) * 1964-08-11 1967-06-13 Norton Co Non-woven webs
US3401491A (en) * 1965-03-25 1968-09-17 Armour & Co Binder of an epoxy resin, polyamide resin and polyester for fibrous abrasive articles
DE2102786A1 (en) * 1971-01-21 1972-08-03 Hermann Behr & Sohn, 7121 Großingersheim Abrasive coated nylon brush bristles - for finishing car bodies
US3817004A (en) * 1972-05-01 1974-06-18 T Moss Scrubbing or buffing device impregnated with abrasive and method of making same
US4227350A (en) * 1977-11-02 1980-10-14 Minnesota Mining And Manufacturing Company Low-density abrasive product and method of making the same
US5549962A (en) * 1993-06-30 1996-08-27 Minnesota Mining And Manufacturing Company Precisely shaped particles and method of making the same
BR9609225A (pt) * 1995-05-25 1999-06-15 Minnesota Mining & Mfg Filamento multicomponentes termoplástico filamentos bicomponentes termoplásticos estrutura filamentar esteira artigo abrasivo processo de obtenção de filamento multicomponentes
DE19522763A1 (de) * 1995-06-27 1997-01-02 Fleissner Maschf Gmbh Co Verfahren und Vorrichtung zur Verfestigung eines Faservlieses
DE69627538T2 (de) 1996-05-03 2004-04-08 Minnesota Mining And Manufacturing Company, St. Paul Nichtgewebte schleifmittel
CN1085575C (zh) * 1996-09-11 2002-05-29 美国3M公司 磨料制品及其制造方法
US7985269B2 (en) * 2006-12-04 2011-07-26 3M Innovative Properties Company Nonwoven abrasive articles and methods of making the same
DE102007008889A1 (de) * 2007-02-21 2008-08-28 Tesa Ag Verfahren zur Erzeugung von nano- und/oder mikrostrukturierten Oberflächen in einer klebenden, insbesondere selbstklebenden Schicht
US20140259960A1 (en) * 2013-03-15 2014-09-18 Martin J. Rotter Nonwoven pads
CN106103077B (zh) * 2015-02-27 2018-06-12 3M创新有限公司 多用消费者洗擦布及其制造方法

Also Published As

Publication number Publication date
KR20180075578A (ko) 2018-07-04
EP3162502A1 (fr) 2017-05-03
FI3368247T3 (en) 2023-08-08
BR112018008664A2 (pt) 2018-10-30
EP3368247B1 (fr) 2023-06-28
US10843309B2 (en) 2020-11-24
CN108290275A (zh) 2018-07-17
US20180326556A1 (en) 2018-11-15
WO2017072293A1 (fr) 2017-05-04

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