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WO2023037272A1 - Article abrasif à combinaison calandrée - Google Patents

Article abrasif à combinaison calandrée Download PDF

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Publication number
WO2023037272A1
WO2023037272A1 PCT/IB2022/058436 IB2022058436W WO2023037272A1 WO 2023037272 A1 WO2023037272 A1 WO 2023037272A1 IB 2022058436 W IB2022058436 W IB 2022058436W WO 2023037272 A1 WO2023037272 A1 WO 2023037272A1
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WO
WIPO (PCT)
Prior art keywords
mesh backing
mesh
raised portion
backing
dimension
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.)
Ceased
Application number
PCT/IB2022/058436
Other languages
English (en)
Inventor
David M. Mahli
Jon P. Nietfeld
Jimmy M. Le
Jeffrey E. ZELINSKY
Liming Song
Gregory S. MUELLER
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.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties Co
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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to US18/689,372 priority Critical patent/US20250001551A1/en
Priority to EP22782580.9A priority patent/EP4399053A1/fr
Publication of WO2023037272A1 publication Critical patent/WO2023037272A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • B24D11/02—Backings, e.g. foils, webs, mesh fabrics
    • 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
    • B24D3/001—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 supporting member
    • B24D3/002—Flexible supporting members, e.g. paper, woven, plastic materials

Definitions

  • the loops serve as the loop-portion of a hook-and-loop (fastener) attachment system for attachment to a tool.
  • Net type products are known to provide superior dust extraction and/or anti-loading properties, when used with substrates known to severely load traditional abrasives. However, cut and/or life performance are still lacking. Thus, there is a need for a net type product that provides enhanced cut and/or life performance while demonstrating superior dust extraction.
  • the cut of net abrasives can be marked by low cut performance and low durability.
  • the method can include providing a combination of a mesh backing and a fastener.
  • the mesh backing has a first side and a second side and the mesh backing has a fastener disposed on the second side and intertwined through the mesh backing therein.
  • the combination comprises a raised portion on the first side having a first dimension.
  • the method can include calendering the first side of the mesh backing to form a calendered mesh backing such that the raised portion results in a second dimension.
  • the second dimension is less than the first dimension.
  • the method can include depositing a curable make layer precursor on a major surface of the calendered mesh backing, deposing a plurality of abrasive particles onto the curable make layer precursor, and at least partially curing the curable make layer precursor.
  • Additional aspects of the present disclosure relate to an abrasive article made according to the method. Additional aspects relate to a system that includes a calendering system configured to receive a combination comprising a mesh backing and a fastener, the calendering system comprising a tensioner, an upper roll, and a lower roll.
  • the upper roll and the lower roll are configured to apply a pressure and a temperature to the combination, a first temperature of the upper roll and a second temperature of the lower roll are different.
  • the coating system configured to coat a make layer, abrasive particles, and a size layer onto a calendered combination.
  • FIG. 1A illustrates a cross-sectional view of an abrasive article in accordance with one embodiment.
  • FIG. IB illustrates an elevational view of the abrasive article in accordance with one embodiment.
  • FIG. 2 illustrates a system of making an abrasive article in accordance with one embodiment.
  • FIG. 3 illustrates a method of making an abrasive article in accordance with one embodiment.
  • FIG. 4A illustrates an aspect of the subject matter in accordance with one embodiment.
  • FIG. 4B illustrates an aspect of the subject matter in accordance with one embodiment.
  • FIG. 5 illustrates an aspect of the subject matter in accordance with one embodiment.
  • FIG. 6 illustrates an aspect of the subject matter in accordance with one embodiment.
  • FIG. 7 illustrates a sample profile graph of mesh backings in accordance with one embodiment.
  • FIG. 8 illustrates an example pattern of an abrasive article in accordance with one embodiment.
  • FIG. 1A and FIG. IB illustrate a coated abrasive article 100.
  • the coated abrasive article 100 can be for a net or mesh abrasive.
  • the abrasive article 100 can include a combination 106 and an abrasive portion 122.
  • the combination 106 comprises a mesh backing 102 and fastener 104 intertwined with the mesh backing 102.
  • the mesh backing 102 and/or a portion of the fastener 104 of the combination 106 can be calendered according to the process described herein.
  • the mesh backing 102 can be distinguished from other fabrics based on the size of the holes formed therein.
  • the holes in the mesh backing 102 can be formed by the yams (if knitted or woven) or by the polymer vertical and horizontal strands (if extruded). The holes can be of varying size due to the nature of knitted articles.
  • the mesh backing 102 can have an average size of 0.5 square millimeters.
  • the mesh backing 102 can have an open area of at least 40%, at least 50%, even at least 60%. In at least one embodiment, the mesh backing 102 can have an initial open area of between 40% and 60% (inclusive).
  • the mesh backing 102 can also include a sizing agent.
  • the mesh backing 102 is a fabric (either woven fabric or knitted fabric), then the fabric can have the following properties.
  • Various fabric mesh backings can be commercially available from Sitip S.p.A. (Cena, Italy) or Scott and Fyfe Ltd. (Tayport, UK).
  • the mesh backing 102 can have a yam thickness of at least 100 micrometers, at least 150 micrometers, at least 300 micrometers, at least 300 micrometers, or at least 350 micrometers.
  • the yarn can have a total denier of no greater than 3000 deniers, no greater than 1000 deniers, no greater than 500 deniers.
  • the yarn can have a breaking tenacity of at least X300 mN/tex as measured by ASTM D2256.
  • the mesh backing 102 can also have a fabric weight of no greater than 300 gsm (gram per square meter), no greater than 220 gsm, or no greater than 120 gsm.
  • the mesh backing 102 can have a fabric weight of at least 40 gsm.
  • the mesh backing 102 can be mostly planar and a plane of mesh backing 102 can be established using a Kawabata evaluation system for surface friction and roughness.
  • the plane can be established based on a majority of surface area or cross-sectional area of a yarn or other material in a single plane. For example, if a fabric has 50% of the solid surface area in a first plane, but 30% of the solid surface area in a second plane, then the first plane can be the reference plane. Thus, the loops (if knitted) can be raised relative to the reference plane.
  • the reference plane can be generally parallel to a flat surface on which the mesh backing rests.
  • the plane of a woven fabric can be established by the weft.
  • the height differential between the raised portion and an adjacent portion can be at least 40, 50, or 60 micrometers.
  • the calendering can result in a calendered combination having a decreased raised portion relative to the combination as determined using the Raised Portion Topological Profile Method described herein.
  • the height differential of the calendered combination can decrease at least 50 percent, at least 60 percent, or at least 70 percent relative to the combination (as a result of calendering) as determined by the Raised Portion Topological Profile Method.
  • the mesh backing 102 is a woven fabric, then the mesh backing 102 can have at least 2 ends per inch and no greater than 20 ends per inch.
  • a woven fabric mesh backing 102 can have raised portions defined by the picks of the woven fabric. For example, an overlap of a weft yam (or thread) with a warp yam (or thread) can form a pick that is raised above a plane of the woven fabric.
  • the mesh backing 102 can have no greater than 2 stiches per square inch.
  • the mesh backing 102 can be a warp knitted fabric. Specifically, tricot knits, such as half-tricot knits were found to have properties that work well as a net abrasive.
  • the warp knitted fabric can use closed laps that are formed by twisting one of the loops.
  • a stich or loop can include a head, two legs, and two feet which describes sections of a yam and is described further herein.
  • the head of the stich and/or the feet of another stich can form the raised portion of the mesh backing 102.
  • the raised portion can be at least two times the diameter of the yam thickness.
  • the warp knitted fabric can further include have a plurality of bobbles or knots formed in addition to the stiches or loops of the yam.
  • a first dimension of the raised portion can be at least two times the diameter of the yam thickness when stretched to 5% of the breaking tenacity for the yarn according to ASTM D2256(2021).
  • the topology of the combination 106 can be indicated by the coefficient of friction.
  • the coefficient of friction can be determined using Coefficient of Friction Test Method described herein.
  • the max KP in the machine direction of a calendered mesh backing can be no greater than 0.4.
  • the max KP in the machine direction of the calendered mesh backing can be at least a 25% decrease relative to the max KP in the machine direction of a comparable uncalendered mesh backing.
  • the mesh backing 102 has a mechanical fastener, or adhesive fastener securely attached to a major surface opposite the abrasive layer.
  • a fastener 104 is shown as included in the combination 106.
  • the fastener 104 can be disposed on the side 120 which is opposite from the side 118.
  • the fastener 104 can be a mechanical fastener which is part of a hook-and-loop system, or thread/filament/yam sewn to the substrate of interest.
  • the mechanical fastener can be a loop portion of the hook-and-loop system.
  • the loop portion of a hook-and-loop-fastener can be provided integral with the absorbent article.
  • the loops provided in the mesh backing 102 can interact with the hooks of a hook-portion of the mechanical fastener.
  • the loop portion can be stitched through/interwoven with the side 120 of the mesh backing 102.
  • the attachment thread of the loop portion (proximate the feet of the loop) can be raised relative to a plane of the side 118 as described above. For example, if the mesh backing 102 is extruded, then the attachment thread of the loop portion (formed on side 120) can cross through the holes formed in the mesh backing 102 so that the stitch of the attachment thread forms a raised portion on side 118 thereby securing the fastener 104 to the mesh backing 102.
  • the attachment thread of the loop portion can be stitched through the yam of the mesh backing 102 (if fabric) such that the attachment thread is not protruding from the side 118.
  • An aspect of the present disclosure is that the combination 106 undergoes melt roll calendering prior to depositing a make layer 108.
  • the melt roll calendering process can be described further herein.
  • the abrasive portion 122 of the abrasive article 100 can be formed according to "Abrasive Article", Li et. al., published as PCT Publication WO 2021/116882 on 17 June 2021 or “Coated Abrasive Articles and Methods of Making Coated Abrasive Articles” by Liu et. al., published as PCT WO 2021/116883 on 17 June 2021.
  • the abrasive article 100 can include optional laminate film 110 that is applied to the combination 106.
  • the make layer 108 can be deposited on the laminate film 110.
  • the abrasive article 100 can include a make layer 108 which is shown as a continuous layer.
  • the make layer 108 can be formed from discrete, discontinuous sections of make resin.
  • the discontinuous sections comprising the make layer 108 can be approximately the same thickness relative to the mesh backing 102.
  • the make layer 108 is disposed on and bonded to side 118 of the mesh backing 102.
  • some of the make layer 108 can coat the sections of the mesh backing 102 surrounding holes formed in the mesh backing 102.
  • Abrasive particles 112 can be disposed on the make layer 108 so that the abrasive particles 112 can maintain their position while abrading a surface.
  • a size layer 114 can be disposed over and bonded to make layer 108, and abrasive particles 112.
  • Optional supersize layer 116 or other functional layers are disposed over and bonded to size layer 114.
  • the make layer, size layer and the optional supersize layer comprise a resinous binder which may be the same or different.
  • exemplary suitable binders can be prepared from corresponding binder precursors such as thermally curable resins, radiation-curable resins, and combinations thereof.
  • Binder precursors may comprise, for example, glue, phenolic resin, aminoplast resin, urea-formaldehyde resin, melamine-formaldehyde resin, urethane resin, free-radically polymerizable polyfunctional (meth)acrylate (e.g., aminoplast resin having pendant a,P-unsaturated groups, acrylated urethane, acrylated epoxy, acrylated isocyanurate), epoxy resin (including bis-maleimide and fluorene -modified epoxy resins), isocyanurate resin, and mixtures thereof.
  • phenolic resins are preferred, especially when used in combination with a vulcanized fiber backing.
  • Phenolic resins are generally formed by condensation of phenol and formaldehyde, and are usually categorized as resole or novolac phenolic resins. Novolac phenolic resins are acid-catalyzed and have a molar ratio of formaldehyde to phenol of less than 1: 1. Resole (also resol) phenolic resins can be catalyzed by alkaline catalysts, and the molar ratio of formaldehyde to phenol is greater than or equal to one, typically between 1.0 and 3.0, thus presenting pendant methylol groups.
  • Alkaline catalysts suitable for catalyzing the reaction between aldehyde and phenolic components of resole phenolic resins include sodium hydroxide, barium hydroxide, potassium hydroxide, calcium hydroxide, organic amines, and sodium carbonate, all as solutions of the catalyst dissolved in water.
  • Resole phenolic resins are typically coated as a solution with water and/or organic solvent (e.g., alcohol). Typically, the solution includes about 70 percent to about 85 percent solids by weight, although other concentrations may be used. If the solids content is very low, then more energy is required to remove the water and/or solvent. If the solids content is very high, then the viscosity of the resulting phenolic resin is too high which typically leads to processing problems.
  • water and/or organic solvent e.g., alcohol
  • Phenolic resins are well-known and readily available from commercial sources.
  • Examples of commercially available resole phenolic resins useful in practice of the present disclosure include those marketed by Durez Corporation under the trade designation VARCUM (e.g., 29217, 29306, 29318, 29338, 29353); those marketed by Ashland Chemical Co. of Bartow, Florida under the trade designation AEROFENE (e.g., AEROFENE 295); and those marketed by Kangnam Chemical Company Ltd. of Seoul, South Korea under the trade designation PHENOLITE (e.g, PHENOLITE TD-2207).
  • VARCUM e.g., 29217, 29306, 29318, 29338, 29353
  • AEROFENE e.g., AEROFENE 295
  • PHENOLITE e.g, PHENOLITE TD-2207
  • Binder precursors can further comprise optional additives such as, for example, fillers (including grinding aids), fibers, lubricants, wetting agents, surfactants, pigments, dyes, coupling agents, resin curatives, plasticizers, antistatic agents, and suspending agents.
  • fillers including grinding aids
  • fibers including fibers, lubricants, wetting agents, surfactants, pigments, dyes, coupling agents, resin curatives, plasticizers, antistatic agents, and suspending agents.
  • fillers suitable for this invention include wood pulp, vermiculite, and combinations thereof, metal carbonates, such as calcium carbonate, e.g, chalk, calcite, marl, travertine, marble, and limestone, calcium magnesium carbonate, sodium carbonate, magnesium carbonate; silica, such as amorphous silica, quartz, glass beads, glass bubbles, and glass fibers; silicates, such as talc, clays (montmorillonite), feldspar, mica, calcium silicate, calcium metasilicate, sodium aluminosilicate, sodium silicate; metal sulfates, such as calcium sulfate, barium sulfate, sodium sulfate, aluminum sodium sulfate, aluminum sulfate; gypsum; vermiculite; wood flour; aluminum trihydrate; metal oxides, such as calcium oxide (lime), aluminum oxide, titanium dioxide, and metal sulfites, such as calcium sulfite.
  • metal carbonates such as calcium carbonate,
  • Binder precursors may be applied by any known coating method, including, for example, including roll coating, extrusion die coating, curtain coating, knife coating, gravure coating, and spray coating.
  • the basis weight of the make layer utilized may depend, for example, on the intended use(s), type(s) and grade(s) of abrasive particles, and nature of the coated abrasive disc being prepared, but typically will be in the range of from 1, 2, 5, 10, or 15 grams per square meter (gsm) to 20, 25, 100, 300, 300, 400, or even 600 gsm.
  • FIG. 2 illustrates a system 200 and FIG. 3 illustrates a method 300 for making the abrasive article of this disclosure (e.g., abrasive article 100). Reference will be made to both FIG. 3 and FIG. 2.
  • the method 300 can begin at block 302 where the combination is received.
  • the combination can be received with the fastener or without the fastener attached. If the fastener is not attached, then one action may be attaching the fastener to the mesh backing.
  • the system 200 can calender the combination.
  • the system 200 can use a calendering system 216 that includes upper roll 204, lower roll 206, and tensioner 208.
  • the calendering system 216 can perform the calendering on the combination 214 in accordance with this disclosure to form the calendered combination 210.
  • the calendering system 216 can calender the calendered combination 210 (which is similar to combination 106).
  • the rolls, upper roll 204 and lower roll 206 can advance the combination 214 through the system 200.
  • the upper roll 204 can have a first temperature and the lower roll 206 can have a second temperature.
  • the first temperature can be at least 350 degrees Fahrenheit (176 degrees Celsius) or at least 400 degrees Fahrenheit (204 degrees Celsius) and the first temperature is no greater than the melting point of the material (e.g., 500 degrees Fahrenheit or 260 degrees Celsius).
  • the second temperature can be at least 200 degrees Fahrenheit (93 degrees Celsius).
  • the tensioner 208 can apply tension to a roll of the combination 214 to aid in the calendering.
  • the line speed can determine the degree of energy transfer to the combination 214.
  • the line speed can range from 5 feet/minute to 25 feet/minute (inclusive).
  • the upper roll 204 and the lower roll 206 can have pressure applied such that the applied pressure is at least 40, at least 200, at least 400, or at least 500 pounds per linear inch.
  • alternative calendering methods can be used such as friction calendering and pattern calendering.
  • the coating system 202 can deposit the make layer precursor in block 306 as described in Li et. al.
  • the coating system 202 can deposit the abrasive particles onto the make layer.
  • the coating system 202 can cure the curable make layer precursor to harden the resin with the abrasive particles.
  • the coating system 202 can apply the size layer.
  • the coating system 202 can apply any functional layers, such as a supersize layer.
  • FIG. 4A and FIG. 4B illustrate a combination 400 that includes the mesh backing 404 and a mechanical fastener 402.
  • the mesh backing 404 is shown as a knitted fabric comprising a first yam having a plurality of stiches interwoven together.
  • Stich 408 can include a head 406 formed by looping the first yam around the legs of another stich.
  • the stich 408 can include leg 410 which is connected to foot 416 and leg 412 which is connected to foot 414.
  • the knitted fabric can have a half-tricot knit having closed laps.
  • the mechanical fastener 402 is depicted as a plurality of loops that correspond to a hook-and-loop fastener.
  • the hook-and-loop fastener can have a second yam (shown as having a single filament) that is knit through the mesh backing 404.
  • each loop of the fastener can have a closed lap and be interwoven with the mesh backing 404.
  • the knit pattern of the fastener is a weft knit with the loops arranged in the cross direction.
  • FIG. 5 illustrates a combination 500 highlighting the mesh backing 504.
  • the mesh backing 504 can have a raised portion 502 formed from the head and at least two yam segments (e.g., the legs).
  • the raised portion 502 can have a first dimension.
  • FIG. 6 illustrates a combination 600 showing the mesh backing 504 in a calendered state.
  • the calendered raised portion 602 of the mesh backing 504 has a second dimension.
  • the second dimension and first dimension can be height relative to a plane of the mesh backing.
  • the height of the calendered raised portion 602 can be less than the height of the raised portion 502.
  • the height of the calendered raised portion 602 can decrease at least 65% from the height of the raised portion 502 in response to the calendering.
  • the first dimension and the second dimension can represent at least one measurement in a direction parallel to the plane of the mesh backing. For example, width or length of the raised portion can be taken.
  • the width or length of the raised portion (e.g., largest measurement taken along a plane of the raised portion can be a dimension) can increase from the raised portion 502 to the calendered raised portion 602.
  • the calendering of mesh backing 504 (mesh backing 604) can have a decrease in the percent open area of the mesh backing 604 by at least 20 percent relative to mesh backing 504 or an increase in the percent surface area of the mesh backing 604 by at least 20 percent, at least 22 percent, at least 25 percent, or at least 27 percent.
  • the coefficient of friction can be decreased by at least 10 percent, at least 12 percent, at least 20 percent, or at least 30 percent.
  • the coefficient of friction kinetic potential can be determined based off of the machine direction or the cross-direction.
  • a 12-inch wide mesh backing was calendered using a 2-roll vertical stack.
  • the rolls were smooth stainless steel.
  • the calender conditions are shown in Table 2.
  • the mesh backing was fed into the calender with the loop facing the lower roll.
  • the side where the abrasive will later be coated onto was facing the upper roll.
  • the upper roll had a temperature of 400 degrees Fahrenheit and the lower roll had a temperature of 200 degrees Fahrenheit.
  • the pressure between the upper and lower rolls was set to 600 pounds per linear inch and the mesh was advanced at a line speed.
  • a gellable make resin was prepared by dissolving 54 parts by weight ECI, 0.4 parts by weight IW1, and 11 parts by weight of TMPTA. To this solution mixture was added 34 parts by weight of CACO3; and 2.27 parts by weight deionized water.
  • Size Resin The size resin was prepared by dissolving 88 parts by weight ECI and 12 parts by weight water.
  • a net mesh abrasive was achieved by applying make resin onto the top fibers of the mesh using a roll coater.
  • the roll coater having a steel top roller and a 90 Shore A durometer rubber bottom roller immersed in the make coat, was obtained from Eagle Tool, Inc., Minneapolis, MN.
  • the amount of make coat transferred to the mesh was adjusted until only the top fibers of the mesh were coated or approximately 40 grams per square meter.
  • the make coated mesh was gelled by irradiation with an ultraviolet (UV) lamp, type “D” bulb, from Fusion Systems Inc., at 15 m/min and 200 Watts/inch.
  • the make coated disc was weighed and P600 mineral was applied using an electrostatic coater. Following coating, the coated mesh was cured in an oven at 165 deg. Fahrenheit (F) for 45 minutes and then 240 deg. F for 20 minutes.
  • UV ultraviolet
  • the size resin was coated using a roll coater.
  • the roll coater having a steel top roller and a 90 Shore A durometer rubber bottom roller immersed in the size coat.
  • the diluted size coat resin was applied continuously over the patterned printed area and discontinuously over the non-abrasive area of the mesh. Once coated, the size coated mesh was cured in an oven at 230 deg. F for 2 hours.
  • a pattern coated net mesh abrasive was achieved by applying make resin onto a film coated mesh backing through a patterned stencil.
  • the extruded film laminated mesh was made similar to what is described in PCT Publication WO 2021/116882 to 3M, filed December 9, 2019.
  • the pattern stencil printing was done as described in U.S. Patent 9393673B2 using the pattern shown in FIG. 8.
  • the make coated mesh was gelled by irradiation with an ultraviolet (UV) lamp, type “D” bulb, from Fusion Systems Inc., at 15 m/min and 200 Watts/inch.
  • the make coated disc was weighed and P600 mineral was applied using an electrostatic coater. Following coating, the coated mesh was cured in an oven at 165 deg. F for 45 minutes and then 240 deg. F for 20 minutes.
  • the size resin was coated using a roll coater.
  • the roll coater had a steel top roller and a 90 Shore A durometer rubber bottom roller immersed in the size coat.
  • the diluted size coat resin was applied continuously over the patterned printed area and discontinuously over the non-abrasive area of the mesh. Once coated, the size coated mesh was cured in an oven at 23 OF.
  • the pattern coat was prepared with 50% of the available surface area. The preparations are shown in Table 3. Table 3 - Examples
  • the orientation of the mesh was kept consistent to the mesh applied to the steel plate.
  • a small slit was cut into the wipe to allow the tether to be exposed.
  • the mesh backing wrapped around the sled was further secured with 233+ masking tape available from 3M Company.
  • the modified friction sled was then attached to the IMASS SP2000 by the provided tether and the sled was placed onto the steel panel that contains the mesh backing with the tape side up.
  • the IMASS SP2000 settings were adjusted in the setup menu to the following: Sled Weight: 200g; Initial Delay: 2 seconds; Averaging Time: 5 seconds; Units: In/Min; Testing Speed: 6 in/min.
  • the topological profile was determined using a Keyence VKX1100 confocal 3D measuring confocal microscope (Keyence Corporation, Osaka, Japan). A 4-inch by 4-inch swath of the combination was placed on the sample tray and a 1 OX magnification, with ring and axial lighting was used for the evaluation. The resulting image was analyzed using VK Series Analyzer Software (Keyence Corporation, Osaka, Japan). An associated height differential was determined by taking the elevation of the raised portion and the elevation of adjacent portions. The results are described in FIG. 7.
  • the calendering for Mesh B to CalMesh B results in a 70 percent decrease in the height differential (or at least a 40 micrometer decrease) and the calendering from Mesh C to CalMesh C results in a 74 percent decrease in the height differential (or at least a 60 micrometer decrease).
  • Abrasive performance of the abrasive articles made were evaluated on 18-inch by 24- inch black painted cold roll steel test panels having a RK8211 clearcoat, obtained from ACT laboratories, Inc., Hillsdale, Michigan.
  • the abrasive discs in 6-inch diameter were attached to a 6-inch interface pad, commercially available under the trade designation “Festool Interface Pad IP-STF D150/MJ2-5/2” PN 30092, from 3M Company, St. Paul, MN.
  • the interface pad was secured to a “Festool compressed air eccentric sander LEX3 15/5” PN 29951, from 3M Company, St. Paul, MN.
  • the sander was attached to a “Festool Mobile Dust Extractor Cleantec CT 36” PN 29947, from 3M Company, St. Paul, MN.
  • the inlet air pressure going to the Festool mobile unit was set to 60 PSI and the sander rpm control lever was set to wide open.
  • Sanding was performed along the 18 inch width direction moving the sander in a back-and-forth motion at a speed of approximately 1 foot per second. Stroke length was approximately 16 inches and the downward force on the sander was approximately 201bs. An abrasive disc was sanded in this manner for 1 minute before moving 6 inches over on the panel along the 24 inches width direction. Each minute of sanding is considered one cycle. A total of 2 cycles was performed on each sample. The mass of the panel was measured before and after each cycle to determine the mass loss from the OEM panel in grams after each cycle. Total cut was determined as the cumulative mass loss at the end of the test. The results are shown in Table 6.
  • Examples of the present disclosure allow for at least a 40% increase of total cut over the comparative non-calendered mesh backing.
  • Bobble refers to a localized set of stiches forming a raised bump.
  • a nupp can refer to a type of bobble.
  • Calender refers to a series of hard pressure rollers used to finish or smooth a sheet of material, or the verb of calendering.
  • Calendering refers to a finishing process used to smooth, coat, or thin a material.
  • the mesh backing can be passed between calendered at elevated temperatures and pressures.
  • Ends per inch refers to the number of warp threads in one inch of woven fabric.
  • Knitted fabric refers to a textile that results from knitting, the process of interlooping of yams or intermeshing of loops. Knitting can create multiple interlocking loops of yam from a continuous yam. Knitted fabric can also refer to an article formed from a continuous first yarn (which can also refer to lengths of yarn tied end to end) and placing a second yam through the first yam.
  • Layer refers to zone having a thickness of material that covers at least a portion of a surface. Layer can refer to continuous or discrete, discontinuous sections of material. If discontinuous, then the layer can have a similar thickness of material throughout the layer.
  • Miesh backing refers to knitted fabric, woven fabric, or an extmded plastic mesh that has visible openings sufficient to allow swarf to pass thru.
  • Pick refers to a region formed from the intersection of a weft and a warp yam in a woven fabric.
  • Picks per inch refers to the number of weft yam in one inch of woven fabric.
  • Switch refers to a link, loop, or knot resulting from a single pass of a needle.
  • Warp refers to yams in woven or knitted fabric that run lengthwise.
  • Warp knitted refers to process of knitting involving a number of threads that are bound together by formation of stiches and in which the loops made from each warp thread are formed mostly along the length of the fabric.
  • Warp knitted fabric refers to a fabric formed by weaving.
  • Weight refers to yarns that are filled in the woven fabric that mn perpendicular to the warp yarns.
  • “Woven fabric” refers to a fabric formed from interlacing two sets of yarns at right angles to each other. The weaving may be performed by using a loom.
  • Yam refers to one or more individual elements such as filaments, bundles of fibers, wires, or cords which follow the same path through the fabric.

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

Abstract

La présente invention concerne, selon certains aspects, un procédé de fabrication d'un article abrasif. Le procédé peut comprendre la fourniture d'une combinaison d'un support à mailles et d'un élément de fixation. Le support à mailles a un premier côté et un second côté, et le support à mailles a un élément de fixation disposé sur le second côté et entrelacé à travers le support à mailles dans celui-ci. La combinaison comprend une partie surélevée sur le premier côté ayant une première dimension. Le procédé peut comprendre le calandrage du premier côté du support à mailles pour former un support à mailles calandré de telle sorte que la partie surélevée aboutit à une seconde dimension. La seconde dimension est inférieure à la première dimension. Le procédé peut comprendre le dépôt d'un précurseur de couche de fabrication durcissable sur une surface principale du support à mailles calandré, le dépôt d'une pluralité de particules abrasives sur le précurseur de couche de fabrication durcissable, et le durcissement au moins partiel du précurseur de couche de fabrication durcissable.
PCT/IB2022/058436 2021-09-08 2022-09-08 Article abrasif à combinaison calandrée Ceased WO2023037272A1 (fr)

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US18/689,372 US20250001551A1 (en) 2021-09-08 2022-09-08 Abrasive article with calendered combination
EP22782580.9A EP4399053A1 (fr) 2021-09-08 2022-09-08 Article abrasif à combinaison calandrée

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US202163241910P 2021-09-08 2021-09-08
US63/241,910 2021-09-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024163414A1 (fr) 2023-01-30 2024-08-08 3M Innovative Properties Company Article abrasif maillé à motifs fendus et son procédé de fabrication

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4214877A (en) * 1978-12-19 1980-07-29 Norton Company Fine grit abrasive
US5674122A (en) * 1994-10-27 1997-10-07 Minnesota Mining And Manufacturing Company Abrasive articles and methods for their manufacture
US9393673B2 (en) 2012-07-06 2016-07-19 3M Innovative Properties Company Coated abrasive article
EP3068935A1 (fr) * 2013-11-13 2016-09-21 Neenah Paper, Inc. Feuille de gaze hydroliée à robustesse élevée et ses procédés de production
US20190111543A1 (en) * 2016-04-04 2019-04-18 Mirka Ltd. Abrasive product
CN110385653A (zh) * 2015-05-08 2019-10-29 磨卡公司 砂盘磨削制品
CN112211008A (zh) * 2019-07-10 2021-01-12 江苏天宇研磨科技有限公司 一种搭扣砂布的织物基体及其制备方法
WO2021116882A1 (fr) 2019-12-09 2021-06-17 3M Innovative Properties Company Article abrasif
WO2021116883A1 (fr) 2019-12-09 2021-06-17 3M Innovative Properties Company Articles abrasifs revêtus et procédés de fabrication d'articles abrasifs revêtus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4214877A (en) * 1978-12-19 1980-07-29 Norton Company Fine grit abrasive
US5674122A (en) * 1994-10-27 1997-10-07 Minnesota Mining And Manufacturing Company Abrasive articles and methods for their manufacture
US9393673B2 (en) 2012-07-06 2016-07-19 3M Innovative Properties Company Coated abrasive article
EP3068935A1 (fr) * 2013-11-13 2016-09-21 Neenah Paper, Inc. Feuille de gaze hydroliée à robustesse élevée et ses procédés de production
CN110385653A (zh) * 2015-05-08 2019-10-29 磨卡公司 砂盘磨削制品
US20190111543A1 (en) * 2016-04-04 2019-04-18 Mirka Ltd. Abrasive product
CN112211008A (zh) * 2019-07-10 2021-01-12 江苏天宇研磨科技有限公司 一种搭扣砂布的织物基体及其制备方法
WO2021116882A1 (fr) 2019-12-09 2021-06-17 3M Innovative Properties Company Article abrasif
WO2021116883A1 (fr) 2019-12-09 2021-06-17 3M Innovative Properties Company Articles abrasifs revêtus et procédés de fabrication d'articles abrasifs revêtus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024163414A1 (fr) 2023-01-30 2024-08-08 3M Innovative Properties Company Article abrasif maillé à motifs fendus et son procédé de fabrication

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US20250001551A1 (en) 2025-01-02

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