JP2014500158A - Built-in fiber buffing article - Google Patents

Abstract

Built-in fiber buffing article. The self-contained fibrous buff abrasive article includes at least one spunlace nonwoven layer having a cured adhesive coating comprising a thermosetting binder, abrasive particles, and a lubricant.
[Selection] Figure 1

Description

Detailed Description of the Invention

[background]
Buffing wheels or buffs are generally formed from layers of fibrous material that are stacked or secured together. Fixing methods include, for example, compression, stitching, stapling, adhesive bonding, plastic or metal clinching, and combinations thereof. A buff wheel is typically attached to a shaft and is supported for rotation. Buffs have long been used to finish items such as machined parts, stamped parts, and cast articles that often have surfaces that must generally be modified for aesthetic purposes. Buffing is a finishing process that is typically performed after a more rigorous surface treatment.

  Buffs are often classified as either “cut” buffs or “color” buffs. Cut buffs are more powerful and are typically used with a rougher buffing compound that is medium to high in pressure between the buff and the workpiece to advance the workpiece relative to the direction of rotation of the buff. As a result, scratches on the workpiece are removed and a uniform matte finish is obtained. Color buffs are typically used with finer buffing compounds that are medium to low in pressure between the buff and the workpiece to advance the workpiece relative to the direction of buff rotation. Using a color buff further removes scratches in the surface of the workpiece and provides a reflective mirror finish.

[Summary of Invention]
Buffs are most often used to polish the surface by a three-body polishing mechanism. The driven buff transfers energy to the workpiece, but the polishing action is provided by a “buffing compound” of the polishing composition that is used in the vicinity but not bonded to the surface of the buff. Unbonded buffing compounds placed between the workpiece and the surface of the buff polish the workpiece surface, so that scratches on the workpiece surface are reduced and reduced as buffing continues. . Such a three-body system provides the desired finish, but the buffing compound must be applied frequently to obtain a stable finish, and undesirably, the buffing compound can migrate to the adjacent surface. Yes, leaving a residue on the workpiece surface that must be removed later. Attempts to overcome these shortcomings by using a two-body polishing system that hardens or pre-impregnates the work surface of the buff instead of using the polishing composition at the periphery has not been successful with cut and color buffs . Accordingly, there is a need for a cut buff and / or a color buff that has been pre-impregnated with a polishing composition for buffing so that the need to apply a buffing compound to the buffing vehicle is substantially eliminated.

  The present invention relates to a built-in fibrous buffing article that functions without applying an external buffing compound to the periphery or surface of a buffing wheel. That is, in one embodiment, the present invention provides a self-contained fibrous buff abrasive article comprising at least one spunlace nonwoven layer having a cured adhesive coating comprising a thermosetting binder, abrasive particles, and a lubricant. is there. The built-in buff of the present invention can be bright-finished on a metal surface, has a long service life, and has abrasion resistance, dusting resistance, smearing resistance, and yarn pulling resistance.

  Those skilled in the art will appreciate that the present description is merely an illustrative embodiment and is not intended to limit the broader aspects of the present disclosure that are embodied in the exemplary constructs. You will understand.

One embodiment of a self-contained fibrous buffing article. A second embodiment of a self-contained fibrous buffing article. A third embodiment of a self-contained fibrous buffing article. A fourth embodiment of a self-contained fibrous buffing article. A fifth embodiment of a self-contained fibrous buffing article.

  Reference signs used repeatedly in the specification and figures are intended to represent the same or similar features or elements of the present disclosure.

[Definition]
As used herein, “built-in fibrous buffing article” refers to a buffing comprising a buffing polishing composition previously applied or impregnated with the fibrous material forming the buffing article. Means an article. This buffing polishing composition is suitable for cut buffing or color buffing and is applied to the buffing article by the manufacturer during the initial manufacture of the buffing article. Thus, the operator need not apply the buffing compound to the buffing article before or during the first use of the buffing article for the purpose of buffing the work surface.

  As used herein, “curing”, when used for the purpose of describing precursor solidification, is curing (eg, polymerization and / or crosslinking by heat or other means), drying (eg, of a volatile solvent). Removal) and / or simple cooling.

  As used herein, the forms of the words “comprise / comprise / include”, “have”, and “include” are legally equivalent and non-limiting. . Thus, in addition to the elements, functions, steps, or restrictions described, there may be additional elements, functions, steps, or restrictions that are not described.

[Detailed description]
The self-contained fibrous buff abrasive article of the present invention comprises at least one spunlace fabric layer impregnated with an adhesive slurry comprising a thermosetting binder precursor, abrasive particles, and a lubricant.

[Fibrous buffing abrasive]
The fibrous buff abrasive useful in the practice of the present invention may be made by any known web forming system. In some embodiments, the fibrous buff abrasive may be spunbonded, hydroentangled, or meltblown. In some embodiments, the fibrous buff abrasive is a dry nonwoven. In some embodiments, the fibrous buff abrasive is an airlaid nonwoven. In some embodiments, the fibrous buff abrasive is formed by carding and cross wrapping. Web forming methods using short fibers are typical and continuous filament systems such as spunbond or meltblown may be used. Useful short fiber lengths include 0.75 inches (19 mm) or more and 4 inches (102 mm) or less. In some embodiments, a prebond coating may be applied to increase the integrity of the nonwoven.

  The fiber component of the fibrous buff abrasive may be synthetic, man-made, or naturally derived. Typical synthetic fibers are polyesters (such as poly (ethylene terephthalate) or poly (butylene terephthalate)), polyamides (such as poly (hexamethylene adipate) or polycaprolactam), and polyolefins (such as polyethylene or polypropylene). Typical artificial fibers include cellulose acetate, rayon, and lyocell. In some embodiments, natural fibers such as cotton, jute, ramie, flax, and wool are useful alone or in combination. In some embodiments, blends of two, three, or even four or more fiber components may be used.

  In some embodiments, the fiber denier may be greater than 0.1 denier (0.11 dtex). In some embodiments, the fiber dimensions may be less than 20 denier (22.5 dtex). In some embodiments, a mixture of two or more fiber deniers may be useful.

  In some embodiments, the fibrous buffing abrasive of the self-contained fibrous buffing article is a spunlace fabric. Spunlace fabric is made by a hydroentanglement process that impinges a series of high-pressure water streams against a web formed from fibrous material. Usually, the fibrous material is supported on the pore surface and the hydroentanglement process results in an entangled perforated fabric that can resemble a woven fabric. Spunlace fabrics typically exhibit high tensile strength and low stiffness, resulting in a strong fabric with good texture and soft hand. Spunlace fabric is often thread resistant.

  Fibers useful in the preparation of spunlace fabric backings are usually short fibers, but continuous filament webs may be used. Useful short fibers are usually synthetic or man made, but natural fibers such as cotton or jute may also be useful. Useful synthetic or man-made fiber materials include polyamide, polyester, polyolefin, polyacrylic, polyimide, lyocell, and rayon. Blends of two or more fiber materials are also useful. For example, a blend of 75% nylon and 25% cotton, or 50% polyester and 50% rayon is useful. The basis weight is not limited, but is usually in the range of 30 to 130 g per square meter. Suitable spunlace fabrics are available, for example, as “SPLENDEX” / “SPLENDOTEX” from Uniminas Industries (Vila Maria, SP, Brazil).

  In some embodiments, suitable spunlace fabrics are 500 N / 50 mm or less in the machine direction, 400 N / 50 mm or less in the machine direction, or 300 N / 50 mm or less in the machine direction, and 300 N / 50 mm or less in the transverse direction, transverse direction. Exhibit a tensile strength of 200 N / 50 mm or less, or 150 N / 50 mm or less in the transverse direction. In some embodiments, a suitable spunlace fabric has a tensile strength of at least 50 N / 50 mm in the machine direction, or at least 100 N / 50 mm in the machine direction, and at least 30 N / 50 mm in the transverse direction, or at least 50 N / 50 mm in the transverse direction. Exhibits strength. Tensile strength numbers are for 50 mm wide test strips. Furthermore, the longitudinal and lateral tensile ranges using any one of the above upper and lower limits are preferred.

[Adhesive slurry]
The adherent slurry includes an aqueous dispersion of abrasive particles, a lubricant, and a thermosetting binder precursor. Useful adhesive slurries maximize the desired polishing effect (cut or color buffing), maximize buffing flexibility and smearing (unnecessary movement of buffing components onto the workpiece during use ) And dusting to minimize dusting. A useful range of cured adhesive coatings is 11-40 wt% thermosetting binder, 20-50 wt% mineral, and 20-45 wt% lubricant.

[Thermosetting binder]
Suitable thermosetting resins and their precursors include epoxy resins, phenolic resins, urea-aldehyde resins, aminoplast resins having pendant unsaturated carbonyl groups, etc. (described in US Pat. No. 4,903,440). Acrylated resins (including those having at least 1.1 pendant α, β unsaturated carbonyl groups per molecule or oligomer), isocyanurate resins having at least one pendant acrylate group (of tris (hydroxyethyl) isocyanurate) Triacrylates), acrylated urethane resins, acrylated epoxy resins, and isocyanate derivatives having at least one pendant acrylate group. It is understood that mixtures of the above resins can also be used. The term “acrylated” is meant to include monoacrylated, monomethacrylated, multiacrylated, and multimethacrylated monomers, oligomers, and polymers.

  Preferred epoxy resins are aqueous emulsions and organic solvent dispersions. An aqueous epoxy emulsion suitable for use in the adhesive slurry is 2,2-bis [4 (2,3-epoxyproxy) phenyl] propane (glycidyl ether of bisphenol A), trade name “Epon”. 828 "," Epon 1004 ", and" Epon 1001F "as Shell Chemical Co. As well as materials available from Dow Chemical Co. "DER-331", "DER-332", and "DER-334" available from: Other suitable epoxy resins include glycidyl ethers of carboxylic acid formaldehyde novolak resins (eg, “DEN-431” and “DEN438” available from Dow Chemical Co.) and resorcinol glycidyl ether.

  In addition, an organic solvent dispersion of an epoxy resin useful in an adhesive slurry contains a mixture of glycidyl ether of bisphenol A epoxy resin and an aromatic hydrocarbon, and is manufactured by Worum Chemical Co. (St. Paul, Minn.) And organic solvents such as those known as the trade name “Aromatic 100”. Resin epoxy equivalents consistent with this description usually and preferably have an epoxy equivalent weight in the range of about 100 to about 500. One particularly preferred epoxy resin that can be combined with an organic solvent to form a coatable adherent slurry is that known under the trade name "EPON 828" having an epoxy equivalent weight in the range of about 185 to about 195 as described above. .

  As noted above, a class of epoxy resins useful in adhesive slurries require a curing agent that reacts with the oxirane groups of the epoxy resin to form a crosslinked binder. Useful curing agents are usually and preferably selected from amides and imidazoles. One useful amide is a polyamide known as the trade name “VERSAMID 125”, commercially available from Henkel Corporation. A useful imidazole is a 100% solid version of 2-ethyl-4-methylimidazole, known by the trade name “EMI-24”, commercially available from Air Products (Allentown, Pa.). The imidazole is usually and preferably diluted with water when used with an aqueous epoxy resin. Preferred imidazoles have about 10-40% solids, more preferably 25% solids. When used with an organic solvent dispersion of an epoxy resin, the imidazole is usually and preferably used as a 100% solid.

  Phenol resins and urea-aldehyde resins useful in adhesive slurries as thermosetting resins include those disclosed in US Pat. No. 5,178,646, columns 15-17. These resins include aldehyde and non-aldehyde reaction products. Phenolic resins are preferred because of their thermal properties, availability, low cost, and ease of handling. The general term “phenol” includes phenol-formaldehyde resins and resins containing other phenol-derived compounds and aldehydes. The phenolic resin and urea-aldehyde resin are preferably 30-95% solids, more preferably 60-80% solids, and the viscosity before addition of any diluent is in the range of about 750 to about 1500 cps (Brookfield viscometer). , Second spindle, 60 rpm, 25 ° C.) and has a molecular weight (number average) in the range of at least about 200, preferably about 200-700.

  The resole phenolic resin can be catalyzed by an alkaline catalyst, and since the molar ratio of fhumaldehyde to phenol is 1 or more, usually 1.0 to 3.0, it indicates a pendant methylol group. Suitable alkaline catalysts for catalyzing the reaction between the aldehyde and the phenolic component of the resole phenolic resin include sodium hydroxide, barium hydroxide, potassium hydroxide, calcium hydroxide, organic amines, and sodium carbonate. All of these are solutions of catalyst dissolved in water. As disclosed in US Pat. No. 5,178,646, uncured resole phenolic resin may be combined with a reactive diluent having the properties and structure described herein.

  Aldehydes useful as components of thermosetting resins include cyclic chain, straight chain and branched chain alkyl aldehydes (which may be saturated or unsaturated), and aromatic aldehydes. Preferably, the aldehyde has a molecular weight of less than about 300 and provides a lower viscosity binder precursor solution. Examples of suitable aldehydes include formaldehyde, benzaldehyde, propanol, hexanal, cyclohexanecarboxaldehyde, acetaldehyde, butyraldehyde, valeraldehyde, and other low molecular weight aldehydes. Formaldehyde is preferred because of its availability, low cost, cured resin properties, and because it provides a low viscosity grinding aid precursor composition.

  Examples of commercially available phenolic resins useful in adhesive slurries include “Varcum” (from Durez Division of Occupational Chemical Corp.), “Aerofene” (from Ashland Chemical Co.), “Bakelite” (Union Carbide). Examples include those known under the trade names of “Resafe” (from Reichhold do Brasil SA) and “Preference” (from Dynaea Brasil SCP). A standard 70% solids (formaldehyde to phenol molar ratio of 1.96: 1.0) phenolic resin with 2 wt% KOH per weight of phenol is available from Nesté Resins Canada (Mississauga, Ontario, Canada). It is available.

  Other binder compositions such as polyacrylonitrile, styrene acrylonitrile copolymer, styrene butadiene copolymer, and combinations thereof may also be used. However, the use of these binders results in buffing articles that are less effective than the thermosetting binders disclosed above.

[lubricant]
Examples of lubricants used in self-contained fibrous buffing articles include fatty acids (eg, stearic acid), fatty acid metal salts (eg, lithium stearate, zinc stearate), solid lubricants (eg, poly (tetrafluoro) Ethylene) (PTFE), graphite, and molybdenum disulfide), mineral oil and mineral wax (including micronized wax), carboxylic acid esters (eg, butyl stearate), poly (dimethylsiloxane) fluids, gums, and combinations thereof Is mentioned. Such lubricants and commercial sources are known to those skilled in the art. Other suitable lubricants will be apparent to those skilled in the art upon review of this disclosure.

  Useful lubricants include, for example, “ZINCUM SW”, “ZINCUM AV”, “CEASIT SW” and “CEASIT AV” (from Baerlocher Do Brasil SA (Americana, SP, Brazil)), “COMAX A”. , “COMMAX T”, “QUIMIPEL COAT 9327” and “QUIMIPEL COAT 9330” (from Quimipel Industries, Quirama LTDA (Piracaia, SP, Brazil), “Natural Graphite Ip”. , “Mineral Oil USP Grade Agecom and Drakeo l "(from Agecom Products de Petroeo (Maua, SP, Brazil)).

[Abrasive particles]
Suitable abrasive particles are those useful for buffing operations. The abrasive particles may be particles of any suitable composition, but typically include those comprising chromium oxide, aluminum oxide, calcined micronized aluminum oxide, iron oxide, titanium oxide, or silicon carbide. Suitable abrasive particle size distributions include those having a median particle size of 50 micrometers or less, 30 micrometers or less, or 15 micrometers or less.

[Other optional additives]
Other optional additives that may be beneficial in the adhesive slurry are surfactants, wetting agents, antifoaming agents, colorants, and coupling agents.

  Anionic surfactants are beneficial for incorporating lubricants into the adhesive slurry. Examples of effective anionic surfactants are “Aerosol OT-75” as Cytec Do Brasil Ltd. Sodium dioctylsulfosuccinate available from (Sao Paulo, SP, Brazil).

  The wetting agent is useful to promote the impregnation of the adherent slurry into the spunlace fibrous buff abrasive. Useful wetting agents include Gap Quimica Ltda. Surfactants that are at least partially nonionic, such as “NopcoWet BR” available from (Guarulhos, SP, Brazil).

  The coupling agent is useful for improving the adhesion between the fibrous buff abrasive, the binder and the abrasive mineral. Useful coupling agents include “Z-6020 Silane” and “Z-6040 Silane”, both available from Dow Corning.

  Colorants or pigments such as iron oxide, titanium oxide, or carbon black may be added to visually identify different buffing articles and / or types of buffing articles. In some embodiments, pigments such as chromium oxide may also function as abrasive particles.

[Adhesive slurry impregnation process]
The built-in fibrous buff abrasive article of the present invention comprises an adhesive slurry comprising abrasive particles, a thermosetting binder, a lubricant, and optionally a wetting agent and / or a surfactant, of a suitable length of fibrous material. It is made by impregnating the material and then performing a heat treatment step that forms a cured adhesive coating on the fiber and on the surface of the fibrous material. The adherent slurry may be incorporated into the fibrous material in one or more steps having any one or more curing (thermal or other methods) steps. In some embodiments, the adherent slurry is incorporated and cured, followed by a coating that includes additional lubricant, followed by an additional curing step. The adherent slurry and additional coating may be applied by conventional application means such as roll coating, curtain coating, die coating, or spraying. In some embodiments, the total dry weight of the coating is 25 gsm to 500 gsm, or 50 gsm to 300 gsm, or 100 gsm to 200 gsm.

  It has been found that removal of water during the curing process separates the more desirable adherent slurry into a hydrophilic phase and a lipophilic phase. Without being bound by theory, the separation of the various coating components into these separate phases contributes to improved buffing performance when using built-in fibrous buffing articles. The inventors are thinking.

[Built-in type fiber buffing article]
The buff must not only be able to withstand the harsh use conditions typically encountered during a buffing operation, but it must also be able to retain a pre-impregnated adhesive buffing composition on the buffing surface. Don't be. The self-contained fibrous buffing article may be any design or style currently known, or any design or style that is contemplated in the future. The most common shape of the buff is illustrated by FIGS.

  FIG. 1 is a suitable thread, optionally known for sewing, with one or more circular seams between an outer edge 13 and a central opening 14 for attachment to a rotating spindle or mandrel. 12 shows a buff 10 composed of a fibrous buff abrasive layer 11, stitched together at 12. The fibrous buff abrasive layers have a generally circular shape and are stacked (or the entire assembly is cut) such that the edges of each layer define a cylindrical surface that is the peripheral edge of the buff.

  FIG. 2 shows a buff 20 comprising a fibrous buff abrasive layer 21 sewn with a plurality of circular seam patterns 22 with a suitable thread. The stitching pattern may be concentric (as shown), spiral, square, radial, radial ring, or a combination thereof. The buff 20 has a central opening 24 for attachment to a rotating spindle or mandrel.

  FIG. 3 cuts a continuous strip of fibrous buff abrasive and spirally wraps the strip around separate ends of an axially aligned cylindrical mandrel, with the wrapped strip radially in the middle. To create a flat “sew wrinkled” annulus and “sew wrinkled” produced by placing a rigid clinch ring 33 of either plastic or metal in the opening of the annulus. A buff 30 known as a buff is shown. A “stitched” fibrous buff abrasive annulus may be secured to a suitable rigid annulus, such as an annulus formed of cardboard, by stapling, stitching, or adhesive bonding.

  The particular structure of the stitching buff will depend on its end use. Buffs formed from stitched fabric layers are typically used in cut buffing, as shown in FIG. A very close row of seams improves the stiffness of the stitching buff and improves machinability. Such buff stitch patterns vary from concentric stitches, radial stitches, square stitches, spiral stitches to radial ring stitches and radial loops with a spiral center depending on the user's needs. It may be. In concentric stitching, the density becomes non-uniform as the buff wears as the buff is used. The buff becomes stiff as the buff wears near the seam, and softens past one row of seams. Spiral stitching provides a more uniform density, but the buff surface will still have density variations. Square and non-concentric stitching patterns create pockets that can aid in buffing.

  Sewing wrinkles or pleated buffs are well known for their cold airflow function, which is provided by the pleats or wrinkles of the fabric. The type of structure of the sewed buff also depends on its end use. Different hardnesses may be required for various cutting and / or color buffing applications. The hardness can be controlled somewhat by the buff spacing on the mandrel, but more generally is adjusted by the degree of stitching, the buff diameter relative to the clinch ring diameter, or the buff fabric stiffness.

  A “flap wheel” structure 40 having individual buffing flaps 41 as shown in FIG. 4 or a “flap belt” structure 50 having individual buffing flaps 51 as shown in FIG. Other self-contained fibrous buffing articles may also be useful, including.

  The objects and advantages of this invention are further illustrated by the following non-limiting examples, which illustrate the specific materials and amounts thereof listed in these examples, as well as other conditions and details, which may unduly It should not be construed as limiting. Unless otherwise indicated, all parts, percentages, ratios, etc. in the examples and the rest of the specification are based on weight. The following abbreviations are used throughout the examples.

Example 1 Color Buff
Adhesive slurry (27 parts phenolic resin, 4.7 parts PEG-400, 0.4 parts Emulan A, 31.8 parts stearic acid emulsion, 0.4 parts Q2, 0.3 parts 100 g / m2 polyester spunlace fabric ("SPLENDEX" from Unimas Industries, Vila Maria, SP, Brazil) with Z-6040 cyan, 1.3 parts green pigment, and 34 parts calcined micronized aluminum oxide) A fibrous buff abrasive was roll coated. The coated fabric was heated in an oven at 193 ° C. for 54 seconds, followed by heating at 185 ° C. for 54 seconds. The dry adhesion weight was 146 gsm. Using a roll coater, the second coating (53 parts water, 0.7 parts Emulan A, 0.1 parts Aesol OT, 6 parts mineral oil, 40 parts stearic acid emulsion, and 0.1 parts Part of antifoam BC-1137) was applied and heated in a furnace for 54 seconds at 193 ° C., followed by heating for 54 seconds at 185 ° C. The total dry weight of both coatings was 196 gsm.

  A built-in buffing article was prepared from the impregnated fibrous buffing abrasive obtained by laminating 50 layers of 25 cm diameter discs onto a flanged mandrel by arbor holes. The assembled disc was compressed on the machine until the point of keeping the layers together. A brass workpiece and an aluminum workpiece were processed using the built-in buffing article. This test was conducted by rotating the built-in buffing article at 1500 rpm. Surface finish was measured using a micrometer (“Permeter M2” from Mahr Federal, Inc. (Providence, Rhode Island)) both before and after buffing. Three measurements were obtained for each condition for each workpiece. The result was the average of these three measurements. In brass, Rz decreased from 0.46 micrometers to 0.22 micrometers and Rmax decreased from 0.86 micrometers to 0.24 micrometers. For aluminum, Rz decreased from 0.83 micrometers to 0.4 micrometers, and Rmax decreased from 0.99 micrometers to 0.44 micrometers.

[Example 2-Cut buff]
The buffing article of Example 2 was prepared in the same manner as Example 1 except that silicon carbide “BSICSK F500” was used instead of 35.3 parts of calcined micronized aluminum oxide.

  The buffing wheel of Example 2 was evaluated for both brass and aluminum. The surface finish was measured using a micrometer (“Permeter M2” from Mahr Federal, Inc. (Providence, Rhode Island)) both before and after the buffing operation of the buffing operation. Three measurements were obtained for each condition for each workpiece. The result was the average of these three measurements. In brass, Rz decreased from 3.17 micrometers to 0.53 micrometers and Rmax decreased from 3.62 micrometers to 0.68 micrometers. For aluminum, Rz decreased from 6.81 micrometers to 0.84 micrometers and Rmax decreased from 7.36 micrometers to 1.41 micrometers.

  Those skilled in the art may make other modifications and changes to the present disclosure without departing from the spirit and scope of the present disclosure more specifically set forth in the appended claims. It should be understood that aspects of the various embodiments may be interchanged or combined in part or in whole with other aspects of the various embodiments. All references, patents, or patent applications cited in the above applications are hereby incorporated by reference in their entirety in a consistent manner. In the event of a partial discrepancy or inconsistency between these incorporated references and this specification, the information in the preceding description will prevail. The previous description provided to enable one skilled in the art to practice the disclosure of the claims shall be construed as limiting the scope of the disclosure as defined by the claims and all equivalents thereto. Should not.

Claims (9)

  A self-contained fibrous buffing article comprising at least one spunlace nonwoven layer having a cured adhesive coating comprising a thermosetting binder, abrasive particles, and a lubricant.   The self-contained fibrous buffing article of claim 1, wherein the adhesive slurry applied to the spunlace nonwoven fabric that forms the cured adhesive coating comprises a surfactant.   The self-contained fibrous buffing article of claim 1 or 2, wherein the adhesive slurry applied to the spunlace nonwoven fabric that forms the cured adhesive coating further comprises a wetting agent.   The self-contained fibrous buffing article according to claim 1, 2, or 3, wherein the basis weight of the spunlace nonwoven fabric is 30 grams per square meter to 130 grams per square meter.   The built-in fibrous buffing article according to claim 1, 2, 3, or 4, wherein the average particle diameter of the abrasive particles is 50 micrometers or less.   The self-contained fibrous buffing article according to claim 1, 2, 3, 4, or 5, wherein the lubricant comprises stearic acid.   The self-contained fibrous buffing article according to claim 1, 2, 3, 4, or 5, wherein the lubricant comprises mineral oil.   The self-contained fibrous buffing article according to claim 1, 2, 3, 4, or 5, wherein the lubricant comprises stearic acid and mineral oil.   The self-contained fibrous buffing article according to claim 1, 2, 3, 4, 5, 6, 7, or 8, wherein the abrasive particles include at least one of chromium oxide, aluminum oxide, or silicon carbide. .

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