JP2015054368A - Sheet-like polishing material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet-like polishing material capable of being widely applied for polishing of an article to be polished having a spherical surface or a complicated shape surface, and capable of maintaining excellent polishing force over a long period of time.SOLUTION: There is provided a sheet-like polishing material 1 obtained by kneading and including a polishing agent formed of fine abrasive grains to a base material formed of an elastic material, the sheet-like polishing material has sufficient flexibility and stability, and polishing surfaces 1a and 1b are capable of being brought into contact with surfaces (surface to be polished) of articles to be polished 5a, 5b and 6a having a spherical surface or a complicated shape surface correctly. Thereby without polishing unevenness, polishing effects having high accuracy are achieved.

Description

  The present invention relates to a sheet-like abrasive, and more particularly, to a polishing technique that can be widely applied to polishing an object to be polished having a curved surface such as a spherical surface or a complicatedly shaped surface.

  Surfaces of various machines and equipment, surfaces of various sports equipment and equipment, cylindrical surfaces of pipes and pipe parts, etc., uneven surfaces, cylindrical surfaces, curved surfaces such as spherical surfaces, corners, etc. Abrasive cloth is generally used as an abrasive material for rust removal and polishing work on the square surfaces of the surface.

  Abrasive cloth paper is suitable for grinding and polishing of metal, wood, etc., and a large number of abrasives (abrasive grains) are adhered and held on the surface of cloth or paper as a base by the adhesive layer. In addition to the function of holding the abrasive, the adhesive layer has a function of hardly spilling the abrasive and increasing the flexibility of the abrasive cloth.

  However, with such abrasive cloth paper, sufficient flexibility cannot be obtained only by the function of imparting flexibility by the adhesive layer, and when the surface to be polished is an uneven surface or a curved surface having a large curvature, The polishing surface of the paper cannot be brought into contact with the surface to be polished faithfully, resulting in uneven polishing. In addition, when polishing an angular surface such as a corner with abrasive cloth, the abrasive cloth must be bent along the angular surface, which also tends to cause uneven polishing, and the bent portion It was uneconomical because it was cut early and the use position of the polished surface had to be changed. Furthermore, in the polishing cloth, there is a problem that the polishing surface is clogged with rust or the like peeled and removed from the material to be polished, and the polishing power of the polishing surface is quickly reduced.

  In this regard, a sheet-like abrasive rubber as disclosed in Patent Document 1 has been developed. This abrasive rubber is a rubber or synthetic resin matrix in which fibers are contained, and on the sheet surface, the tips of the fibers protrude from the matrix surface and are distributed with an average density of a predetermined number or more.

  According to this polishing rubber, no crease is produced no matter how many times polishing is continued, and it can be applied to any surface regardless of shape and material, and smooth polishing can be obtained.

JP-A-8-1526

  However, the above-mentioned abrasive rubber has a complicated structure and severe manufacturing conditions, and it is difficult to obtain the desired effect sufficiently, and there is room for further improvement.

  The present invention has been made in view of such conventional problems, and the object of the present invention is to be a polished object having a curved surface such as a spherical surface or a complicatedly shaped surface regardless of the shape of the surface of the object to be polished. It is an object of the present invention to provide a sheet-like abrasive that can be widely applied to polishing of the above and that can maintain an excellent polishing power over a long period of time.

  In order to achieve this object, the sheet-like abrasive of the present invention can be elastically deformed along the surface of the object to be polished, and a polishing agent made of fine abrasive grains is formed on a substrate made of an elastic material. It is characterized by being uniformly kneaded and contained.

The following configuration is adopted as a preferred embodiment.
(1) The plate thickness is set to 0.5 to 5.0 mm.

(2) Both surfaces of the abrasive material are flat polished surfaces.

(3) At least one of the front and back surfaces of the abrasive is a polished surface having a wavy uneven pattern in which a plurality of concave grooves are arranged at equal intervals.

(4) The front and back surfaces of the abrasive material are provided with a wavy concavo-convex polished surface in which a plurality of concave grooves are arranged at equal intervals, and the concave grooves on the front and rear surfaces are provided so as not to face each other.

(5) At least one of the front and back surfaces of the abrasive is a polished surface with a lattice-like uneven pattern in which a plurality of concave grooves are arranged at equal intervals.

(6) The front and back surfaces of the abrasive are provided with a grid-like concavo-convex pattern polished surface in which a plurality of concave grooves are arranged in an intersecting manner at equal intervals, and the concave and convex grooves on the front and rear surfaces are provided so as not to face each other. Yes.

(7) The abrasive front and back surfaces have a polka-dot concavo-convex pattern with a plurality of holes that are evenly provided on the front and back surfaces.

(8) The base material is a styrene resin.

(9) An abrasive | polishing agent is 10-1300 weight part with respect to 100 weight part of styrene resin.

(10) The base material is an olefin resin.

(11) The abrasive is 10 to 1300 parts by weight with respect to 100 parts by weight of the olefin resin.

(12) The base material is an ethylene-vinyl acetate resin.

(13) The abrasive is 10 to 1300 parts by weight with respect to 100 parts by weight of the ethylene-vinyl acetate resin.

(14) The base material is a vinyl chloride resin.

(15) The abrasive is 10 to 1300 parts by weight with respect to 100 parts by weight of the vinyl chloride resin.

(16) The base material is a rubber-based resin.

(17) The abrasive is 10 to 1300 parts by weight with respect to 100 parts by weight of the rubber-based resin.

(18) The abrasive grain size of the abrasive is 0.5 μm to 2.5 mm.

(19) The abrasive comprises natural abrasive grains.

(20) The natural abrasive is composed of at least one abrasive selected from diamond, corundum, emery, garnet, silica, spinel, diatomaceous earth, dolomide, tripoly, and pumice powder.

(21) The natural abrasive is a vegetable abrasive.

(22) The above-mentioned vegetable abrasive comprises at least one dry pulverized material selected from peach seed, apricot seed, walnut shell, and corn core.

(23) The abrasive is made of artificial abrasive grains.

(24) The artificial abrasive is composed of at least one abrasive selected from artificial diamond, boron carbide, silicon carbide, fused alumina, iron oxide, chromium oxide, and calcined alumina.

  According to the sheet-like abrasive material of the present invention, it is elastically deformable along the surface of the object to be polished, and the abrasive material made of fine abrasive grains is uniformly kneaded and contained in the base material made of the elastic material. Therefore, various excellent specific effects as listed below are exhibited, and it is widely used for polishing objects to be polished having curved surfaces such as spherical surfaces or complicated shapes regardless of the shape of the surface of the object to be polished. It is possible to provide a sheet-like abrasive that can be applied and can maintain an excellent polishing force over a long period of time.

(1) The base material is made of an elastic material and is rich in flexibility and resilience. Polishing is possible even when the surface to be polished is an uneven surface, a curved surface with a large curvature, or an angular surface such as a corner. The surface can be brought into contact with the surface to be polished faithfully, and a highly accurate polishing effect can be obtained without causing uneven polishing.

(2) The mechanism of removing (polishing) the dirt on the surface of the object to be polished by the abrasive of the present invention is based on the fact that the abrasive is brought into close contact with the dirt such as rust on the surface to be polished, whereby the substrate on the polished surface The abrasive (abrasive grains) contained in the surface peels and removes dirt such as rust on the surface to be polished while being detached from the abrasive, and the abrasive surface (the abrasive grains) is removed from the polished surface. Due to the self-generated action, the polished surface of the abrasive is newly regenerated and exposed. Therefore, in the abrasive of the present invention, even if used abrasives (abrasive grains) fall off, a new polished surface is always regenerated and exposed due to the self-generated action during polishing, and the polished surface is not clogged. The desired polishing force can be maintained at all times, and thereby an excellent dirt removal effect can be exhibited over a long period of time.

(3) Also, the substrate that is detached from the polishing surface together with the abrasive (abrasive grains) due to the self-generated action of the polishing surface is peeled and removed from the abrasive (abrasive grains) and the surface to be polished due to its characteristics (viscosity). Since the dirt such as rust is collected and collected together, the abrasive waste generated when the rust etc. on the surface to be polished is peeled and removed with an abrasive is good, and the abrasive waste is not scattered around It is possible to effectively prevent troubles such as contaminating the work environment and the clothes of the worker.

It is a perspective view which shows the sheet-like abrasive | polishing material which is Embodiment 1 of this invention. FIG. 2A is a perspective view showing a state in which the surface to be polished is frictionally removed with the abrasive, and FIG. 2B is a diagram for explaining the mechanism for removing the dirt with the abrasive. It is a top view which expands and shows the generated grinding | polishing waste. FIG. 3A is a perspective view showing a usage state of the abrasive, FIG. 3A is a state where a straight cylindrical portion surface of a tap pipe is polished, and FIG. 3B is a state where a bent cylindrical portion surface of the tap pipe is also polished. FIG. 3C shows a state in which the surface of the inner side corner of the sink is polished. FIG. 4A is a perspective view showing the use state of the same abrasive, FIG. 4A is a state of polishing a cylindrical step portion of a tap faucet operation unit, FIG. 4B is a state of polishing a curved surface of a kettle body, FIG. 4C shows a state where the shaft surface of the iron of the golf club is polished. Similarly, FIG. 5A is a perspective view showing the usage state of the abrasive, FIG. 5A is a state where the abrasive is in a stationary state, and the surface to be polished is rubbed against the polishing surface, and FIG. 5B is held in the hand. The state where the polished object surface is polished with an abrasive is shown. It is a perspective view which shows the sheet-like abrasive | polishing material which concerns on Embodiment 2 of this invention. FIG. 7 (a) shows a state in which the abrasive is bent with a palm in a cylindrical shape toward the back side, and FIG. 7 (b) shows a state where the abrasive is bent in a cylindrical shape with the palm toward the front side. FIG. 7 (c) shows a state where the cylindrical pipe surface is polished by bending to the state shown in FIG. 7 (b). It is a perspective view which shows the sheet-like abrasive | polishing material which concerns on Embodiment 3 of this invention. It is a perspective view which shows the state which grind | polishes the curved surface of a kettle main body with the abrasive material. It is a perspective view which shows the sheet-like abrasive | polishing material which concerns on Embodiment 4 of this invention. FIG. 11 (a) shows a state where the surface of the cylindrical pipe is polished, and FIG. 11 (b) shows a state where the polishing scraps at the time of polishing enter a circular hole for providing flexibility. Each state is shown. 12 shows a sheet-like abrasive according to Embodiment 5 of the present invention, FIG. 12 (a) is a perspective view of the sheet-like abrasive, and FIG. 12 (b) is a diagram showing the abrasive being suspended and held on a tool board. FIG. 12C shows a state where the surface of the doorknob is polished with the abrasive. FIG. 13A shows a perspective view of the sheet-like abrasive according to Embodiment 6 of the present invention, and FIG. 13B shows a state where a thin cylindrical pipe surface is polished with the abrasive. Show. FIG. 14A is a perspective view showing a further modified example of the sheet-like abrasive according to the present invention, FIG. 14A is a modified example of the sheet-like abrasive according to Embodiment 2 of FIG. 6, and FIG. 14B is the implementation of FIG. The modification of the sheet-like abrasive | polishing material which concerns on form 3 is shown, respectively.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Throughout the drawings, the same reference numeral indicates the same component or element.

Embodiment 1
A sheet-like abrasive according to the present invention is shown in FIGS. 1 to 5, and this abrasive 1 is specifically in the form of an elastic sheet that can be elastically deformed along the surface of an object to be polished. In the form, as shown in FIGS. 2 to 5, it is a form of a thin rectangular sheet having a shape and size suitable for a hand-held work with one hand H.

  The constituent material of the abrasive 1 is obtained by uniformly kneading and containing an abrasive made of fine abrasive grains in a base material made of an elastic material.

  As the base material, from the viewpoint of safety and environmental conservation, a styrene resin, an olefin resin, an ethylene-vinyl acetate resin, a vinyl chloride resin, and a rubber resin base material are suitable, and these are independent. Alternatively, two or more types are used in combination as required, and styrene resins, olefin resins, and rubber resin substrates are particularly suitable.

  Examples of the styrene resin base material include styrene-isoprene-styrene copolymer, styrene-ethylenebutylene-styrene copolymer, styrene-butadiene-styrene copolymer, styrene-ethylenepropylene-styrene copolymer, and styrene-based resin. Examples thereof include styrenic thermoplastic elastomers such as thermoplastic elastomer compounds, which are used alone or in combination of two or more as required. Further, it may be combined with other base materials.

  Examples of the olefin-based resin substrate include Sumitomo TPE (Sumitomo Chemical Co., Ltd.), Miralastomer (Mitsui Chemicals), ethylene-α olefin copolymer, propylene-α olefin copolymer, ethylene-α olefin copolymer. Examples include olefin elastomers such as coalescence (metallocene catalyst), amorphous poly-α-olefin, high-density polyethylene, low-density polyethylene, ultra-low-density polyethylene, and polypropylene. These may be used alone or in combination of two or more as required. Used. Further, it may be combined with other base materials.

  Examples of the ethylene-vinyl acetate resin substrate include EVAFLEX (trade name, Mitsui DuPont Polychemical Co., Ltd.) and Ultrasen (Tosoh Corp.). These may be used alone or as needed. Used in combination. Further, it may be combined with other base materials.

  As the vinyl chloride resin base material, all conventionally used vinyl chloride resins are used. For example, in addition to polyvinyl chloride having a polymerization degree of about 400 to 3000, a vinyl chloride-vinyl acetate copolymer, ethylene chloride. A vinyl copolymer etc. are mentioned, These are used individually or in combination of 2 or more types as needed. Further, it may be combined with other base materials.

  Examples of rubber-based resin base materials include IIR (butyl rubber), IR (isoprene rubber), SBR (styrene-butadiene rubber), BR (butadiene rubber), EPM (ethylene propylene rubber), and EPDM (ethylene propylene ternary copolymer). Coalesced), acrylic rubber, polyisobutylene, and NR (natural rubber). These may be used alone or in combination of two or more as required. Further, it may be combined with other base materials.

  As the abrasive, all conventionally used abrasives are used. For example, as a representative example, natural abrasive grains such as diamond, corundum, emery, garnet, quartzite, spinel, diatomaceous earth, dolomide, tripoly, float stone powder, Alternatively, artificial abrasive grains such as artificial diamond, boron carbide, silicon carbide, fused alumina, iron oxide, chromium oxide, calcined alumina and the like can be mentioned, and these can be used alone or in combination of two or more as required.

  In addition, as the above-mentioned natural abrasive grains, there are also plant abrasives such as corn core, walnut shell, apricot seed, peach seed, etc., and these vegetable abrasives are preferable from the viewpoint of environmental conservation and effective use of waste. . As the plant abrasive, a dried and pulverized dried product is used, and these are used alone or in combination of two or more as required.

  The particle diameter of the abrasive grains of the abrasive is preferably 0.5 μm to 2.5 mm. If it is less than 0.5 μm, the unevenness on the surface of the abrasive (polishing surface) is too small and the polishing effect is small. On the other hand, the larger the particle size, the greater the polishing effect. However, when the particle size is larger than 2.5 mm, it is not preferable because the removal of the abrasive from the substrate increases.

  The blending ratio of the styrene resin base material and the abrasive is 10 to 1300 parts by weight of the abrasive with respect to 100 parts by weight of the styrene resin. When the abrasive is less than 10 parts by weight, the contact between the abrasive and dirt is reduced, and the polishing effect is reduced. On the other hand, when the polishing agent is larger than 1300 parts by weight, dropping of the polishing agent from the styrene resin substrate increases.

  The blending ratio of the olefin resin substrate and the abrasive is 10 to 1300 parts by weight of the abrasive with respect to 100 parts by weight of the olefin resin. When the abrasive is less than 10 parts by weight, the contact between the abrasive and dirt is reduced, and the polishing effect is reduced. On the other hand, when the polishing agent is larger than 1300 parts by weight, dropping of the polishing agent from the olefin resin substrate increases.

  The blending ratio of the ethylene-vinyl acetate resin base material and the abrasive is 10 to 1300 parts by weight of the abrasive with respect to 100 parts by weight of the ethylene-vinyl acetate resin. When the abrasive is less than 10 parts by weight, the contact between the abrasive and dirt is reduced, and the polishing effect is reduced. On the other hand, when the polishing agent is larger than 1300 parts by weight, dropping of the polishing agent from the ethylene-vinyl acetate resin substrate increases.

  The blending ratio of the vinyl chloride resin substrate and the abrasive is 10 to 1300 parts by weight of the abrasive with respect to 100 parts by weight of the vinyl chloride resin. When the abrasive is less than 10 parts by weight, the contact between the abrasive and dirt is reduced, and the polishing effect is reduced. On the other hand, when the polishing agent is larger than 1300 parts by weight, dropping of the polishing agent from the vinyl chloride resin base material increases.

  The mixing ratio of the rubber-based resin substrate and the abrasive is 10 to 1300 parts by weight of the abrasive with respect to 100 parts by weight of the rubber-based resin. When the abrasive is less than 10 parts by weight, the contact between the abrasive and dirt is reduced, and the polishing effect is reduced. On the other hand, when the polishing agent is larger than 1300 parts by weight, dropping of the polishing agent from the rubber-based resin substrate increases.

  In addition to the above-mentioned styrene resins, olefin resins, ethylene-vinyl acetate resins, vinyl chloride resins or rubber resins alone, a combination of two or more of these substrates and abrasives For the same reason as above, the blending ratio is 10 to 1300 parts by weight of the abrasive with respect to 100 parts by weight of the base material.

  In addition, fillers such as heavy calcium carbonate, light calcium carbonate, silica, diatomaceous earth, magnesium oxide, talc, sericite, quartz powder, shell powder such as montmorillonite, scallops, oysters, and stains, as well as organic and inorganic Other additives such as colorants such as pigments and dyes, stabilizers, lubricants, antioxidants, ultraviolet absorbers, and fungicides can be used as appropriate.

  The composition comprising the base material and the abrasive is uniformly kneaded, molded by press molding, injection molding, extrusion molding or the like, cut into a desired shape dimension, and the sheet-shaped abrasive 1 shown in FIG. Is done.

As shown in FIG. 1, the sheet-like abrasive 1 produced in this way has both front and back surfaces 1a and 1b made flat and has a plate thickness t of 0.5 to 5.0 mm. Is set. If the plate thickness t is less than 0.5 mm, it will be damaged early due to insufficient strength, and the expected life will not be obtained, while if the plate thickness t is greater than 5.0 mm, the flexibility will be impaired, The desired flexibility or curvature cannot be obtained.
The sheet thickness t of the sheet-like abrasive 1 of the illustrated embodiment is set to 0.7 mm.

  In addition, since the sheet-like abrasive 1 has a configuration in which the abrasive is uniformly mixed and contained in the base material, the entire sheet functions as an abrasive and, as will be described later, only the front and back polishing surfaces 1a and 1b. In addition, the thin side surface 1c can also function as a polishing surface or a polishing portion. The thin side surface 1c is particularly suitable for polishing a narrow portion or a corner portion of an angular recess.

  The polishing material 1 removes (polishes) dirt on the surface of the object to be polished, as shown in FIG. 2A. The mechanism of polishing material 1 is the surface of the object to be polished such as a stainless steel table 2 (to be polished). Surface) By rubbing closely against dirt such as rust on the surface 2a, the abrasive (abrasive grains) contained in the base material on the polishing surface 1a is detached from the abrasive 1 while rusting on the surface 2a to be polished. The polishing surface 1a of the abrasive 1 is newly regenerated and exposed by the self-generated action of the polishing surface 1a due to the removal of the abrasive (abrasive grains) from the polishing surface 1a.

  As a result, the polishing material 1 is always excellent by the newly exposed polishing surface 1a without causing dirt such as rust that has been peeled and removed to adhere to the polishing surface 1a due to the self-generated action during polishing. The dirt removal effect (polishing effect) can be demonstrated over a long period of time.

  On the other hand, the base material detached from the polishing surface together with the polishing agent (abrasive grains) due to the self-generated action of the polishing surface 1a is peeled off from the polishing agent (abrasive grains) and the surface to be polished 2a due to its characteristics (viscosity). As shown in FIG. 2 (b), dirt such as rust is collected together on the surface 2a to be polished as scraps s and is not scattered around.

  Thus, in order to polish the surface of the object to be polished with the polishing material 1 configured as described above, as shown in FIGS. 3 and 4, the polishing material 1 is held by one hand H and the polishing surface, for example, The polishing surface 1a is rubbed in close contact with the surface (surface to be polished) of the object to be polished fixedly provided, or the abrasive 1 is placed in a stationary state in a stable place as shown in FIG. 5 (a). Place the surface of the object to be polished against the polishing surface 1a, or attach the surface of the object to be polished held in one hand H with the abrasive 1 held by the other hand H as shown in FIG. Rubbing.

  Specifically, FIG. 3A shows a state where the surface of the straight cylindrical portion 5a of the pipe 5 in the tap 3 is polished with the polishing surface 1a of the abrasive 1 as an object to be polished, and FIG. Similarly, the surface of the bent cylindrical portion 5b of the pipe 5 of the faucet 3 is polished by the polishing surface 1a of the abrasive 1 as shown in FIG. The surface of the side corner 6a is shown in a state where it is polished by the polishing surface 1a of the abrasive 1, and in each case, the polishing surface 1a of the abrasive 1 is the cylindrical surface of the straight cylindrical portion 5a of the pipe 5, The pipe 5 can be rubbed closely along the convex curved cylindrical surface of the bent cylindrical portion 5b and the concave curved surface of the inner side corner portion 6a of the sink 6.

  4A shows a state where the cylindrical stepped portion 7 of the operation portion of the tap 5 is polished with the thin side surface 1c of the abrasive 1, and FIG. 4B shows the object to be polished. As shown in FIG. 4C, the curved surface 8a of the main body of the kettle 8 is polished by the polishing surface 1a of the abrasive 1, and the surface of the shaft 9a of the golf club iron 9 is polished as an object to be polished. In each case, the thin-walled side surface 1c and the polished surface 1a of the abrasive material 1 are curved on the cylindrical step 7 of the operation portion of the faucet 5 and the curved shape of the kettle 8 respectively. The surface 8a and the surface of the shaft 9a of the iron 9 can be rubbed closely along the surfaces.

  In FIG. 5A, the polishing material 1 is placed in a stable position with the polishing surface 1a facing upward, and the surface of the annular member 10 as the object to be polished is rubbed against the polishing surface 1a for polishing. FIG. 5B shows a state in which the surface of the annular member 10 as an object to be polished held in one hand H is polished by the polishing surfaces 1b and 1c of the abrasive 1 held by the other hand H, respectively. In any case, the surface of the annular member 10 can be rubbed closely against the polishing surfaces 1a, 1b or the thin side surface 1c of the polishing material 1 along the respective faithfully.

  As described above, the sheet-like abrasive 1 of the present embodiment is elastically deformable along the surfaces of the objects to be polished 5a, 5b, 6a, 7, and 8, and is formed on a base material made of an elastic material. Since the abrasive comprising fine abrasive grains is uniformly kneaded and contained, the excellent specific effects listed below are exhibited, and the surface shapes of the objects to be polished 5a, 5b, 6a, 7, and 8 are obtained. Regardless, the present invention can be widely applied to the polishing of objects to be polished 5a, 5b, 6a, 7, 8 having curved surfaces such as spherical surfaces or surfaces having complicated shapes.

(A) The base material is made of an elastic material and is rich in flexibility and resilience. Polishing is possible even when the surface to be polished is an uneven surface, a curved surface with a large curvature, or an angular surface such as a corner. The surface can be brought into contact with the surface to be polished faithfully, and a highly accurate polishing effect can be obtained without causing uneven polishing.

(B) The polishing material 1 of this embodiment removes (polishes) the surface of the objects 5a, 5b, 6a, 7, and 8 to be polished. The abrasive (abrasive grain) contained in the base material on the polishing surface 1a peels and removes dirt such as rust on the surface to be polished while being detached from the polishing material 1 by the close contact friction. The polished surface of the abrasive 1 is newly regenerated and exposed by the self-generated action of the polished surface due to the removal of the (abrasive grains) from the polished surface. Therefore, the abrasive 1 of the present embodiment can always exhibit an excellent dirt removing effect over a long period of time due to the new polished surface 1a exposed by the self-generated action during polishing.

(C) Further, the base material that is detached from the polishing surface 1a together with the polishing agent (abrasive grains) due to the self-generated action of the polishing surface 1a is separated from the polishing agent (abrasive grains) and the surface to be polished by its characteristics (viscosity). Since the dirt such as rust that has been peeled and removed is collected and collected together, the abrasive waste s that is generated when the abrasive 1 peels and removes the rust and the like on the surface to be polished is well organized. It does not scatter and can effectively prevent troubles such as dirty work environment and worker clothes.

Embodiment 2
This embodiment is shown in FIG. 6 and FIG. 7, and a specific shape structure is modified.

  That is, as shown in FIG. 6, the sheet-like abrasive 11 of the present embodiment has a thickness t set larger than that of the sheet-like abrasive 1 of the first embodiment, specifically, is set to 3.0 mm. Yes. The thickness t of the sheet-like abrasive 11 is set within the range of 0.5 to 5.0 mm depending on the purpose, as in the case of the embodiment 1.

  On the surface 11a of the abrasive 11, a plurality of concave grooves 12 are linearly arranged at equal intervals, whereby the surface 11a is a polished surface with a wavy uneven pattern. On the other hand, the back surface 11b of the abrasive 11 is a flat polished surface, similar to the abrasive 1 of the first embodiment.

  In the abrasive material 11 of the present embodiment, the plate thickness t is reduced at the portions of the plurality of concave grooves 12, 12,..., Thereby causing the abrasive material 11 to have the concave grooves 12, 12,. Thus, the same flexibility as that of the abrasive 1 of the first embodiment is provided. As a result, as shown in FIGS. 7 (a) and 7 (b), the abrasive 11 can be easily held in a cylindrical shape as shown in the figure by holding the abrasive 11 in the shape of a hand in the palm of one hand H. Bend.

  Note that the specific flexibility required for the abrasive 11 can be obtained by appropriately setting and adjusting the plate thickness t of the abrasive 11, the cross-sectional shape dimensions of the grooves 12, the arrangement pitch, and the like.

  Thus, according to the polishing material 11 configured as described above, as shown in FIG. 7C, the polishing material 11 held in the palm of one hand H is used as the outer peripheral cylinder of the cylindrical pipe 13 that is the object to be polished. By wrapping around the surface and holding it with a palm, the polished surface (in the illustrated case, the polished surface 1a) is in close contact with the outer peripheral cylindrical surface (surface to be polished) of the cylindrical pipe 13 in this state. Thus, by moving the abrasive 11 relative to the cylindrical pipe 13 in the axial direction and / or the circumferential direction, a highly accurate polishing effect can be obtained without causing uneven polishing.

  Further, the surface 11a of the abrasive 11 is a polished surface having a wavy uneven pattern formed by the grooves 12, 12,..., So that the contact area of the object to be polished with the surface to be polished is the polishing surface 1a having the flat surface of the first embodiment. As a result, for example, when the outer peripheral cylindrical surface (surface to be polished) of the cylindrical pipe 13 of the illustrated embodiment is polished, the coefficient of friction with the surface to be polished is larger than in the case of Embodiment 1. Less slippery and smoother polishing work.

Further, the concave groove 12 also functions as a receiving groove for polishing waste during polishing. That is, referring to FIGS. 2 (a) and 2 (b), as shown in FIG. 2 (b), the polishing debris s detached from the abrasive 11 at the time of polishing is caused by the characteristics (viscosity) of the base material. (Abrasive grains) and dirt such as rust removed from the surface to be polished are collected and collected on the surface to be polished, and further, the concave grooves 12, 12,... 12 and so on, and are not scattered around.
Other configurations and operations are the same as those of the first embodiment.

Embodiment 3
This embodiment is shown in FIG. 8 and FIG. 9, and a specific shape structure is modified.

  That is, as shown in FIG. 8, the sheet-like abrasive 21 of the present embodiment has a plate thickness t larger than that of the sheet-like abrasive 1 of the first embodiment, specifically, is set to 3.0 mm. Yes. The thickness t of the sheet-like abrasive 11 is set within the range of 0.5 to 5.0 mm depending on the purpose, as in the case of the embodiment 1.

  On the surface 21 a of the abrasive 21, a plurality of concave grooves 12, 22 are arranged in an intersecting manner at equal intervals, whereby the surface 21 a is a polished surface of the lattice-shaped uneven pattern 23. On the other hand, the back surface 11b of the abrasive 11 is a flat polished surface, similar to the abrasive 1 of the first embodiment.

  In the abrasive 21 of the present embodiment, the plate thickness t is reduced at the portions of the plurality of concave grooves 12, 12,..., 22, 22,. The same flexibility as that of the abrasive 1 of the first embodiment is imparted to the arrangement direction of... And the same flexibility as that of the abrasive 1 of the first embodiment also in the arrangement direction of the concave grooves 22, 22. Sex is imparted. As a result, the abrasive 21 bends in both directions (two orthogonal directions) along the concave grooves 12 and 22, that is, in a two-dimensional direction, with the same degree of flexibility as the abrasive 1 of the first embodiment. Flexibility equivalent to that of the abrasive 1 of Embodiment 1 is imparted in a spherical shape.

  Note that the specific flexibility required for the abrasive 21 is the same as in the second embodiment, the plate thickness t of the abrasive 21, the cross-sectional shape dimensions of the grooves 12, 22, and the grooves 12, 22. It can be obtained by appropriately setting and adjusting the arrangement pitch and the like.

  Thus, according to the abrasive 21 configured as described above, as shown in FIG. 9, the abrasive 21 held in the palm of one hand H is used as the curved surface 8a of the main body of the kettle 8 that is the object to be polished. The polishing surface (the polishing surface 21b in the illustrated case) is in contact with the curved surface (surface to be polished) 8a of the kettle 8 faithfully along the surface. By moving relative to the cylindrical pipe 13, a highly accurate polishing effect can be obtained without causing uneven polishing.

  Further, the surface 21a of the abrasive 21 is used as a polishing surface of the lattice-shaped uneven pattern 23 formed by the grooves 12, 22,..., So that the contact area of the object to be polished with the surface to be polished is the polishing surface 1a of the first embodiment. Compared to the case of the second embodiment, the size is further reduced. As a result, for example, when the curved surface (surface to be polished) 8a of the kettle 8 of the illustrated embodiment is polished, the above-described coverage is reduced compared to the case of the first embodiment. The friction coefficient with the polishing surface 8a is small, and the sliding is good, thereby realizing a smoother polishing operation.

Furthermore, the concave grooves 12 and 22 also function as a polishing waste storage groove during polishing, as in the second embodiment. That is, referring to FIGS. 2 (a) and 2 (b), as shown in FIG. 2 (b), the polishing debris s detached from the abrasive 21 at the time of polishing becomes abrasive due to the characteristics (viscosity) of the substrate. (Abrasive grains) and dirt such as rust removed from the surface to be polished are collected and collected on the surface to be polished, and further, the concave grooves 12, 22,... 22 and so on, and are not scattered around.
Other configurations and operations are the same as those of the first embodiment.

Embodiment 4
This embodiment is shown in FIG. 10 and FIG. 11 and has a specific shape structure modified.

  That is, as shown in FIG. 10, the sheet-like abrasive 31 of the present embodiment is set to have a plate thickness t larger than that of the sheet-like abrasive 1 of the first embodiment. The same 3.0 mm is set. The thickness t of the sheet-like abrasive 11 is set within the range of 0.5 to 5.0 mm depending on the purpose, as in the case of the embodiment 1.

  The front and back surfaces 31a and 31b of the abrasive 31 are provided with a plurality of circular hole portions 32 for imparting flexibility evenly penetrating the front and back surfaces 31a and 31b. Is a polished surface with polka dots.

  In the abrasive 31 of the present embodiment, the same flexibility as the abrasive 1 of the first embodiment is imparted to the abrasive 31 due to the presence of the plurality of circular holes 32, 32,. As a result, the abrasive 31 can be easily bent into a substantially spherical shape like the abrasive 21 of the third embodiment.

  The specific flexibility required for the abrasive 31 is appropriately set and adjusted for the thickness t of the abrasive 31, the shape of the circular holes 32, the arrangement pitch of the circular holes 32, and the like. Can be obtained.

  Thus, according to the abrasive 31 configured as described above, as shown in FIG. 11A, the abrasive 31 held in the palm of one hand H is used as the outer peripheral cylinder of the cylindrical pipe 33 that is the object to be polished. By wrapping around the surface and holding it with a palm, the polished surface (in the illustrated case, the polished surface 31a) is in close contact with the outer peripheral cylindrical surface (surface to be polished) of the cylindrical pipe 33 in this state. Thus, by moving the abrasive 31 relative to the cylindrical pipe 33 in the axial direction and / or the circumferential direction, a highly accurate polishing effect can be obtained without causing uneven polishing.

Further, as shown in FIG. 2 (b), the polishing scrap s generated during polishing is contaminated with rust or the like peeled off from the polishing agent (abrasive grains) and the surface to be polished due to the characteristics (viscosity) of the substrate. Are collected on the surface to be polished, and are further collected by the action of the circular holes 32, 32,... Of the abrasive 31 into the circular holes 32, 32,... (See FIG. 11B). There is no scattering around.
Other configurations and operations are the same as those of the first embodiment.

Embodiment 5
This embodiment is shown in FIG. 12, and a specific shape structure is modified.

  That is, the sheet-like abrasive 41 of the present embodiment has a plate thickness t (= 0.7 mm) similar to that of the sheet-like abrasive 1 of the first embodiment as shown in FIG. It is in the form of a small thin rectangular sheet suitable for polishing work on the object to be polished.

  A locking hole 42 is provided at the rectangular corner of the abrasive 41, and a tool board for holding a small tool such as a spanner 45 when the abrasive 41 is not used, as shown in FIG. The latching nail 44 of 43 can be latched and held via the locking hole 42 in a suspended manner.

Thus, the abrasive 41 configured as described above holds the door knob 47 of the opening door 46, which is the object to be polished, by the abrasive 41 held in the palm of one hand H as shown in FIG. As a result, the polishing surface (the polishing surface 41a in the case of illustration) is in contact with the outer peripheral cylindrical surface (surface to be polished) of the door knob 47 faithfully, and in this state, the polishing material 41 is relative to the door knob 47. By moving to, a highly accurate polishing effect can be obtained without causing uneven polishing.
Other configurations and operations are the same as those of the first embodiment.

Embodiment 6
This embodiment is shown in FIG. 13, and the specific shape structure is modified.

  That is, the sheet-like abrasive 51 of the present embodiment has a plate thickness t (= 0.7 mm) similar to that of the sheet-like abrasive 1 of Embodiment 1, as shown in FIG. It is made into the form of the elongate thin-walled rectangular sheet suitable for the grinding | polishing operation | work of the to-be-polished object.

Thus, the abrasive 51 configured as described above is applied to the outer peripheral cylindrical surface of the thin cylindrical pipe 52, which is an object to be polished, once or a plurality of times (in the illustrated case, 3) as shown in FIG. The polishing surface (in the illustrated case, the polishing surface 51a) is in close contact with the outer peripheral cylindrical surface (surface to be polished) of the cylindrical pipe 52, and in this state, grips both ends of the polishing material 51. By alternately pulling and moving in the circumferential direction relative to the cylindrical pipe 52, a highly accurate polishing effect can be obtained without causing uneven polishing.
Other configurations and operations are the same as those of the first embodiment.

  Subsequently, the sheet-like abrasive according to the present invention will be described in more detail based on Examples and Comparative Examples, but these do not limit the scope of the present invention.

Example 1
"Rubber"
RSS 1 grade (natural rubber, Indonesia) 100.0 parts by weight White sub # 1 (Factis, Tenma Sub Chemical Co., Ltd.) 200.0 parts by weight Diana Process NP-24 (softener, Idemitsu Kosan Co., Ltd.) 33.0 parts by weight Part Zinc Oxide (Sakai Chemical Industry Co., Ltd.) 7.0 parts by weight Titanium JA3 (Titanium Oxide, Teika Co., Ltd.) 13.0 parts by weight Sulfur (sulfur powder, manufactured by Karuizawa Smelter) 9.0 parts by weight Sulfur Noxeller DM Sulfur accelerator, Ouchi Shinsei Chemical Co., Ltd.) 8.0 parts by weight High Silica (Abrasive, Nichetsu Co., Ltd.) 230.0 parts by weight

  As shown in the above formulation, a rubber-based resin substrate was used as the substrate resin component, and all the compounding materials were kneaded and kneaded into natural rubber using two rolls to obtain a rubber mixture. The obtained rubber mixture was preformed according to the dimensions of a predetermined mold, and then vulcanized and molded using a hot press at 130 ° C. for 20 minutes. The obtained rubber molding was cut into a predetermined shape and a sheet-like abrasive 1 shown in FIG. 1 was obtained.

Example 2
"Styrene"
Asaprene T-475 (SBS, Asahi Kasei Corporation) 70.0 parts by weight Septon 2043 (SEPS, Kuraray Co., Ltd.) 30.0 parts by weight Heavy calcium carbonate (heavy calcium carbonate, Maruo Calcium Co., Ltd.)
200.0 parts by weight PW-32 (process oil, Idemitsu Kosan Co., Ltd.) 30.0 parts by weight high silica (abrasive, Nichetsu Co., Ltd.) 100.0 parts by weight

  As shown in the above blending, using a styrene-based thermoplastic elastomer as the base resin component, the dough blended at a predetermined ratio was put into two rolls heated to 120 ° C. and sufficiently kneaded. Thereafter, a sheet-shaped abrasive 1 having a predetermined shape and dimension shown in FIG. 1 was obtained by press molding.

Example 3
"Olefin"
Miralastomer 5030N (olefin-based thermoplastic elastomer, Mitsui Chemicals) 60.0 parts by weight Toughmer P-0180 (ethylene α-olefin copolymer, Mitsui Chemicals)
40.0 parts by weight heavy calcium carbonate (heavy calcium carbonate, Maruo Calcium Co., Ltd.)
200.0 parts by weight PW-32 (process oil, Idemitsu Kosan Co., Ltd.) 30.0 parts by weight high silica (abrasive, Nichetsu Co., Ltd.) 100.0 parts by weight

  As shown in the above blending, using a olefinic thermoplastic elastomer as a base resin component, the dough blended at a predetermined ratio was put into two rolls heated to 120 ° C. and sufficiently kneaded. Thereafter, a sheet-shaped abrasive 1 having a predetermined shape and dimension shown in FIG. 1 was obtained by press molding.

Example 4
"Ethylene-vinyl acetate"
EVAFLEX 640 (ethylene vinyl acetate copolymer, Mitsui DuPont Polychemical Co., Ltd.) 60.0 parts by weight EP rubber (ethylene propylene copolymer, JSR Corporation) 40.0 parts by weight heavy calcium carbonate (heavy Calcium carbonate, Maruo calcium)
200.0 parts by weight PW-32 (process oil, Idemitsu Kosan Co., Ltd.) 30.0 parts by weight high silica (abrasive, Nichetsu Co., Ltd.) 100.0 parts by weight

  As shown in the above blending, using ethylene-vinyl acetate thermoplastic elastomer as the base resin component, the dough blended at a predetermined ratio is put into two rolls heated to 120 ° C and kneaded sufficiently. Then, the sheet-like abrasive 1 shown in FIG. 1 was obtained by press molding.

Example 5
"PVC"
ZEST P-21 (PVC, Shin-Daiichi PVC Co., Ltd.) 100.0 parts by weight DBP (plasticizer, Kyowa Hakko Co., Ltd.) 30.0 parts by weight DOP (plasticizer, Kyowa Hakko Co., Ltd.) 100.0 parts by weight High Silica (Abrasive, Niche Co., Ltd.) 100.0 parts by weight NS-Z (stabilizer, Lead City Chemical Co.) 2.0 parts by weight

  As shown in the above formulation, using a vinyl chloride resin as a base resin component, the dough blended at a predetermined ratio is poured into a mold having a predetermined shape and kept at 130 ° C., heated for 20 minutes, and then cooled. The sheet-shaped abrasive 1 shown in FIG.

Comparative Example A commercially available sandpaper (abrasive paper: abrasive cloth paper AA-120 manufactured by Riken Corundum Co., Ltd.) was used.

  The following five performances were measured and evaluated using the sheet-like abrasives (rectangular test pieces having a shape of 100 mm × 100 mm) obtained in Examples 1 to 5 and Comparative Example as samples. The test results are shown in Table 1.

1. Adhesion test:
a) Test method:
The degree of adhesion of the polished surface was visually confirmed and evaluated when a 19 mm diameter pole (object to be polished) was gripped with a sample (Examples 1 to 5, Comparative Example).
(B) Test result:
As shown in Table 1, in all of Examples 1 to 5 (product of the present invention), the polished surface is firmly adhered to the outer peripheral cylindrical surface (surface to be polished) of the pole without any gap (good adhesion), It has been found that the polished surface can be brought into contact with the surface to be polished faithfully, and polishing unevenness is unlikely to occur. On the other hand, in the comparative example (comparative product), there is a portion where a gap is generated between the polished surface and the surface to be polished (adhesion failure), and as a result, the polished surface is faithful to the surface to be polished. It was found that it was difficult to make contact along the surface, and uneven polishing was likely to occur.

2. Coherency test:
(A) Test method:
The sample (Examples 1 to 5 and Comparative Example) is brought into close contact with the surface (surface to be polished) of a rusted iron plate (object to be polished) and polished 100 times, and polishing scraps remaining on the surface to be polished (FIG. 2). After removing (see (b)), the surface to be polished was wiped with a cloth, and at this time, it was confirmed whether or not dirt (rust, iron powder, etc.) adhered to the wiped cloth.
(B) Test result:
As shown in Table 1, all of Examples 1 to 5 (product of the present invention) did not adhere to the wipe, and as a result, the base material detached from the polishing surface together with the abrasive (abrasive grains) It is found that the abrasive (abrasive grains) and dirt such as rust and iron powder peeled and removed from the surface to be polished are taken together and collected as polishing scraps on the surface to be polished (good unity) and do not scatter around. did. On the other hand, in the comparative example (comparative product), dirt such as rust and iron powder peeled and removed from the surface to be polished is not collected as polishing scraps (cohesion failure) and is widely scattered on the surface to be polished. It can be clearly confirmed visually, and it has been found that it is easily scattered around.

3. Flexibility test:
(A) Test method:
The ease of bending of the sample when grasping and grasping a 19 mm diameter pole (object to be polished) with the sample (Examples 1 to 5 and Comparative Example) was evaluated by hand feeling.
(B) Test result:
As shown in Table 1, all of Examples 1 to 5 (product of the present invention) are rich in elasticity and easy to bend, and when released, return to the original flat plate and have flexibility that is easy to use practically. Turned out to be. On the other hand, it was found that the comparative example (comparative product) was poor in elasticity and did not return to the original flat plate even when the hand was released, and was less flexible and practically difficult to use compared to the product of the present invention. .

4). Bending test:
(A) Test method:
When a 19 mm diameter pole (object to be polished) was gripped with a sample (Examples 1 to 5 and Comparative Example), the sample was visually checked for the presence or absence of a fold.
(B) Test result:
As shown in Table 1, all of Examples 1 to 5 (product of the present invention) were found to be practically easy to use because they are highly elastic and do not fold. On the other hand, it was found that the comparative example (comparative product) was poor in elasticity and did not return to the original flat plate even when the hand was released, making it practically difficult to use compared to the product of the present invention.

5. Sustainability test:
(A) Test method:
The sample (Examples 1-5, Comparative Example) was brought into close contact with the surface (surface to be polished) of a rusted iron plate (object to be polished) and reciprocally polished 100 times, and the change in the polished surface of the sample before and after polishing was changed. The presence or absence was confirmed by visual inspection and hand feeling and evaluated.
(B) Test result:
As shown in Table 1, in all of Examples 1 to 5 (product of the present invention), a new polished surface is always regenerated even if used abrasives (abrasive grains) fall off due to the self-generated action of the polished surface. When exposed (no change), it has been found that the polished surface can always maintain the desired polishing force without causing clogging, and can thereby exhibit an excellent soil removal effect over a long period of time. On the other hand, in the comparative example (comparative product), there is no self-generated action on the polished surface, so that the rust removed from the polished surface may cause clogging of the polished surface or a used polishing agent. It was found that (abrasive grains) dropped (changed greatly), and the polishing power of the polishing surface was rapidly reduced, thereby leading to the early removal of the dirt removal effect.

（表１において、密着性：〇―密着良好、×―密着不良、まとまり性：〇―まとまり良好、×―まとまり不良、柔軟性：〇―曲げやすい、×―曲げにくい、折れの有無：〇―折れ目がない、×―折れ目がある、持続性：〇―あまり変化しない、×―大きく変化する。）

(In Table 1, Adhesiveness: 〇—Good adhesion, × —Inadequate adhesion, Cohesiveness: ◯ —Good cohesion, x—Cohesion failure, Flexibility: 〇—Easy to bend, X—Difficult to bend, Existence of breakage: 〇— No crease, x-crease, persistence: 〇-not much change, x-big change.)

  In addition, Embodiment 1-6 mentioned above shows the suitable embodiment of this invention to the last, This invention is not limited to these, A various design change is possible within the range.

  For example, in the sheet-like abrasive 11 according to Embodiment 2 in FIG. 6 and the sheet-like abrasive 21 according to Embodiment 3 in FIG. 8, the surfaces 11a and 21a have wavy uneven patterns 12, 12,. While the back surface 11b and 21b are planar polishing surfaces, the pattern 23 is a polishing surface, but both the front and back surfaces are like sheet-like abrasives 61 and 71 shown in FIGS. 14 (a) and 14 (b). 61a, 61b and 71a, 71b may be the polished surfaces of the wavy uneven patterns 12, 12,.

  In this case, the concave and convex grooves 12, 12,..., Or 22, 22,... Of the front and back surfaces 61a, 61b and 71a, 71b are provided so as not to be opposed to each other.

t Thickness of sheet abrasive s Polishing scrap 1 Sheet abrasive 1a, 1b, 1c Polished surface 2 Stainless steel table (object to be polished)
2a Surface to be polished 5a Straight cylindrical part of pipe of water tap (object to be polished)
5b Curved cylinder of pipe for water faucet (object to be polished)
6a Inner side corner of sink (object to be polished)
7 Cylindrical step of water faucet (object to be polished)
8 Kettle (object to be polished)
8a Curved surface (surface to be polished)
9a Golf club iron shaft (object to be polished)
10 Toroidal member (object to be polished)
11 Sheet-like abrasives 11a, 11b, 11c Polishing surface 12 Concave groove 13 Cylindrical pipe (object to be polished)
21 Sheet-like abrasive 21a, 21b, 21c Polishing surface 22 Concave groove 23 Grid-like uneven pattern 31 Sheet-like abrasive 31a, 31b, 31c Polishing surface 32 Circular hole 33 Cylindrical pipe (object to be polished)
41 Sheet-like abrasive 41a, 41b, 41c Polishing surface 42 Locking hole 43 Tool board 47 Door knob of opening door (object to be polished)
51 Sheet-like abrasive 51a, 51b, 51c Polishing surface 52 Cylindrical pipe (object to be polished)
61 Sheet-like abrasives 61a, 61b, 61c Polishing surface 71 Sheet-like abrasives 71a, 71b, 71c Polishing surface

Claims (25)

A sheet-like abrasive that is elastically deformable along the surface of the object to be polished,
A sheet-like abrasive comprising a base material made of an elastic material and an abrasive material made of fine abrasive grains uniformly mixed therein. A sheet-like abrasive having a plate thickness of 0.5 to 5.0 mm. The sheet-like abrasive according to claim 1, wherein both surfaces of the abrasive material are flat abrasive surfaces. 2. The sheet-like abrasive according to claim 1, wherein at least one of the front and back surfaces of the abrasive is a polishing surface having a wavy uneven pattern in which a plurality of concave grooves are arranged at equal intervals. The front and back surfaces of the abrasive material are characterized by a wavy uneven pattern with a plurality of concave grooves arranged at equal intervals, and the concave and convex grooves on the front and rear surfaces are provided so as not to face each other. The sheet-like abrasive according to claim 4. 2. The sheet-like abrasive according to claim 1, wherein at least one of the front and back surfaces of the abrasive is a polishing surface having a grid-like concavo-convex pattern in which a plurality of concave grooves are arranged at equal intervals. The front and back surfaces of the abrasive material are provided with a plurality of concave grooves arranged in an intersecting manner with a plurality of equal intervals in a grid-like concavo-convex pattern, and the concave and convex grooves on the front and back surfaces are provided so as not to face each other. The sheet-like abrasive according to claim 6. 2. The sheet-like abrasive according to claim 1, wherein the front and back surfaces of the abrasive material are a polishing surface having a polka-dot uneven pattern in which a plurality of holes are provided so as to penetrate the front and back surfaces evenly. The sheet-like abrasive according to claim 1, wherein the substrate is a styrene resin. The sheet-like abrasive according to claim 9, wherein the abrasive is 10 to 1300 parts by weight with respect to 100 parts by weight of the styrene resin. The sheet-like abrasive according to claim 1, wherein the substrate is an olefin resin. The sheet-like abrasive according to claim 11, wherein the abrasive is 10 to 1300 parts by weight with respect to 100 parts by weight of the olefin resin. The sheet-like abrasive according to claim 1, wherein the substrate is an ethylene-vinyl acetate resin. 14. The sheet-like abrasive according to claim 13, wherein the abrasive is 10 to 1300 parts by weight with respect to 100 parts by weight of the ethylene-vinyl acetate resin. The sheet-like abrasive according to claim 1, wherein the substrate is a vinyl chloride resin. The abrasive sheet according to claim 15, wherein the abrasive is 10 to 1300 parts by weight with respect to 100 parts by weight of the vinyl chloride resin. The sheet-like abrasive according to claim 1, wherein the base material is a rubber-based resin. The sheet-like abrasive according to claim 17, wherein the abrasive is 10 to 1300 parts by weight with respect to 100 parts by weight of the rubber-based resin. The sheet-like abrasive according to claim 1, wherein the abrasive has a grain size of 0.5 μm to 2.5 mm. The sheet-like abrasive according to claim 19, wherein the abrasive comprises natural abrasive grains. 21. The sheet according to claim 20, wherein the natural abrasive grains are composed of at least one abrasive grain selected from diamond, corundum, emery, garnet, silica, spinel, diatomaceous earth, dolomide, tripoly, and pumice powder. Abrasive. The sheet-like abrasive according to claim 20, wherein the natural abrasive is a vegetable abrasive. The sheet-like abrasive according to claim 22, wherein the vegetable abrasive comprises at least one dry pulverized material selected from peach seeds, apricot seeds, walnut shells, and corn cores. . The sheet-like abrasive according to claim 19, wherein the abrasive comprises artificial abrasive grains. 25. The artificial abrasive grain according to claim 24, comprising at least one abrasive grain selected from artificial diamond, boron carbide, silicon carbide, fused alumina, iron oxide, chromium oxide, and calcined alumina. Sheet abrasive.

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