Plastic softening composition and roughening treatment method
By using a plastic soft composition of a flexible substrate, a particle-like abrasive material and a fibrous support material, the problem of uneven coarsing treatment on the surface being treated is solved, and uniform coarsing and high-quality coating on the surface are achieved .
Patent Information
- Application Number
- CN202410470653.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-06-19
- Filing Date
- 2024-04-18
- Publication Date
- 2024-12-20
AI Technical Summary
The prior art is difficult to perform uniform roughening treatment on the surface to be processed on the curved surface, resulting in poor coating quality, especially in the case of mirror coating, which requires reliance on skilled craftsmen for adjustment.
Using a plastic soft composition with a flexible substrate, a particle-like abrasive material and a fibrous support material, the pressure uniformity and grinding effect are coarsed by contacting the treated surface and following its shape deformation, combined with the rubbing action. .
The uniform coarse treatment on the surface to be processed is achieved, which reduces the dependence on craftsman technology, simplifies the processing process, and improves the coating quality.
Smart Images
Figure CN119159504A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a plastic flexible composition and a roughening treatment method, and in particular to a plastic flexible composition suitable for forming a plurality of irregularities on a surface to be treated as a pre-treatment (roughening treatment) for coating surfaces of articles, etc., and a roughening treatment method using the same. Background Art
[0002] When painting the surface of an object (for example, the body of a car or its components, etc.), in order to improve the adhesion of the paint or coating on the painted surface, a pre-treatment (roughening treatment) of evenly grinding (roughening) the painted surface (treated surface) is generally performed before painting.
[0003] In the past, the roughening treatment was usually carried out by using water-resistant paper or abrasive cloth and performing air grinding or water grinding. Figure 4 and Figure 5 As shown, generally, a hardwood holding block 50, a soft or hard sponge pad 60, etc., and a sandpaper 52 are attached to a magic sheet 51 to grind the entire treated surface for roughening treatment before painting. The above treatment is also the same when the treated surface 100 is a curved surface. In addition, Figure 4 and Figure 5 This is a diagram for explaining the above-mentioned roughening treatment method, and is a diagram viewed from the side in order to understand the contact state.
[0004] In addition, as a roughening abrasive material that can effectively make the unevenness of a processed surface uniform and improve the appearance of a product, the following roughening abrasive material is known, which comprises: a cloth substrate; a plurality of three-dimensional elements including abrasive grains and a binder; and an adhesive layer that is provided on one side of the cloth substrate and joins the cloth substrate and the three-dimensional elements (for example, refer to Patent Document 1).
[0005] Also, there is known a plastic flexible composition containing polishing fine particles on a plastic flexible substrate for polishing and coating a surface to be treated instead of roughening (see, for example, Patent Document 2).
[0006] Prior art literature
[0007] Patent Literature
[0008] Patent Document 1: Japanese Patent Application Publication No. 2018-108613
[0009] Patent Document 2: Japanese Patent Application Publication No. 2010-240751 Summary of the invention
[0010] Problem that the invention aims to solve
[0011] Furthermore, in recent years, mirror coating is often required for the treated surface 100 having a complex curved surface. In such cases, since high quality is required in the repair work, the difficulty of the work is known as a time-consuming work in the sheet metal industry.
[0012] However, in the above method, it is difficult to perform uniform roughening treatment when the treated surface 100 is a curved surface. That is, by using the hardwood holding block 50, although a uniform roughening treatment can be effectively performed on a flat treated surface, for a curved treated surface, the contact portion is limited to a specific portion, making it difficult to perform uniform roughening treatment.
[0013] In addition, the sponge pad 60 with magic sheet 51 can cope with the contact with the curved surface 100, but it is still difficult to perform uniform roughening because the palm pressure is easily applied to the fingertips, which applies unbalanced pressure to the surface. Moreover, when the sponge pad follows the curved surface to deform it, the pressure of the part where the sponge shrinks increases, and the pressure of the part where the sponge does not shrink becomes lower than that, so the pressure applied to the surface becomes uneven (for example, Figure 5 In the embodiment, the pressure at the center of the sponge pad 60 becomes higher, and the pressure at the left and right ends becomes weaker than that at the center). Since the grinding force varies according to the pressure applied to the processed surface, it is difficult to perform uniform roughening treatment using these methods.
[0014] Roughening is an important operation that determines the quality of the coating. It is required to perform the roughening uniformly, especially in the case of mirror coating, careful attention is required. Therefore, as mentioned above, in the case where it is difficult to perform a uniform roughening on the treated surface of the curved surface, it depends on the personal skills of the craftsman, such as the adjustment of the roughening treatment by a skilled craftsman.
[0015] In addition, the roughening abrasive material described in the above-mentioned Patent Document 1 makes the height, shape, arrangement, etc. of the three-dimensional elements of the abrasive grains uniform according to the purpose, thereby attempting to uniformly distribute the load on the processed surface and uniformly roughen the processed surface. However, it is necessary to prepare in advance a cloth substrate having three-dimensional elements with a predetermined height, arrangement, and shape according to the shape of the processed surface. In the case where the processed surface is a curved surface, it is still difficult to keep the pressure on the processed surface constant because the substrate is a cloth substrate.
[0016] The plastic soft composition described in Patent Document 2 is intended to be subjected to polishing and coating treatments in order to avoid damaging the coated surface, and is not intended for roughening treatment.
[0017] Therefore, an object of the present invention is to provide a novel plastic flexible composition which does not rely on the skill of the above-mentioned craftsman and has a simple structure and makes it easy to perform the roughening treatment uniformly even if the surface to be treated is a curved surface.
[0018] Solutions for solving problems
[0019] The plastic soft composition for roughening of the present invention comprises: a soft substrate having plasticity; a particulate abrasive, the soft substrate containing the particulate abrasive, the average particle size of the particulate abrasive being 10 μm or more and 1.5 mm or less; and a fibrous supporting material, the soft substrate containing the fibrous supporting material, the average fiber diameter of the fibrous supporting material being 10 μm or more and 1.0 mm or less.
[0020] The roughening treatment method of the present invention comprises the following steps: a step of bringing a plastic soft composition into contact with a treated surface and applying pressure to the plastic soft composition in a manner that follows the shape of the treated surface to cause plastic deformation thereof; and a step of rubbing the plastic soft composition in contact with the treated surface along the treated surface to roughen the treated surface, wherein the plastic soft composition comprises: a soft substrate having plasticity; a granular abrasive material, the soft substrate containing the granular abrasive material, the average particle size of the granular abrasive material being greater than 10 μm and less than 1.5 mm; and a fibrous supporting material, the soft substrate containing the fibrous supporting material, the average fiber diameter of the fibrous supporting material being greater than 10 μm and less than 1.0 mm.
[0021] Effects of the Invention
[0022] According to the plastic flexible composition and roughening treatment method of the present invention, it is possible to provide a novel plastic flexible composition and roughening treatment using the same, wherein the plastic flexible composition has a simple structure and makes it easy to perform the roughening treatment uniformly even when the surface to be treated is a curved surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a diagram showing a schematic configuration of a plastic flexible composition as one embodiment of the present invention.
[0024] Figure 2 This is a diagram for explaining a roughening treatment method for a surface to be treated using a plastic flexible composition which is one embodiment of the present invention.
[0025] Figure 3 This is a diagram showing a schematic configuration when a plastic flexible composition according to one embodiment of the present invention is fixed to a polishing material.
[0026] Figure 4 This is a diagram for explaining a conventional method of roughening a surface to be treated using a wooden holding block.
[0027] Figure 5 This is a diagram for explaining a conventional method of roughening a surface to be treated using a sponge pad.
[0028] Description of Reference Numerals
[0029] 10. Plastic soft composition
[0030] 11Flexible substrate
[0031] 12 Granular abrasive material
[0032] 13. Fibrous support material
[0033] 50 holding blocks
[0034] 51 Magic Movies
[0035] 52 sandpaper
[0036] 60 sponge pad
[0037] 100 processed surfaces. DETAILED DESCRIPTION
[0038] In the following embodiments, for convenience and when necessary, they are divided into multiple parts or embodiments for description, but except for cases where it is specifically stated, they are not unrelated to each other, and are in a relationship where one is a modification example, detail, supplementary explanation, etc. of part or all of the other.
[0039] In addition, in the following embodiments, except for the cases where the number of elements (including number, numerical value, quantity, range, etc.) is mentioned, the cases where it is specifically stated, and the cases where it is clearly limited to a specific number in principle, it is not limited to the specific number, and can be either above or below the specific number.
[0040] Moreover, in the following embodiments, the constituent elements (including element steps, etc.) are not necessarily required, except for the cases that are specifically indicated and the cases that are clearly considered to be required in principle, etc. In addition, in the embodiments, etc., when it is said that the constituent elements are "composed of A" or "composed of A", except for the cases that specifically indicate that it is only the element, etc., the elements other than the elements are certainly not excluded.
[0041] Similarly, in the following embodiments, when referring to the shapes, positional relationships, etc. of the constituent elements, except for the cases that are specifically indicated and the cases that are clearly considered not to be such in principle, the cases that are similar or similar to the shapes, etc. are substantially included. The same is true for the above-mentioned numerical values and ranges.
[0042] Furthermore, when materials, etc. are mentioned, unless otherwise specifically stated or otherwise indicated in principle or in a situation, the specific materials are the main materials, and secondary elements, additives, additional elements, etc. are not excluded.
[0043] In addition, in all the drawings for explaining the present embodiment, the same reference numerals are used in principle to indicate the same functions, and their repeated descriptions are omitted.
[0044] In addition, in the drawings used in the present embodiment, even in plan views, hatching may be partially added to facilitate the viewing of the drawings.
[0045] Hereinafter, a plastic flexible composition and a roughening treatment method according to one embodiment of the present invention will be described in detail with reference to the drawings.
[0046] [Plastic soft composition]
[0047] Figure 1 1 is a diagram for explaining the schematic structure of the plastic soft composition of this embodiment. Figure 1 As shown, the plastic flexible composition 10 is composed of: a flexible substrate 11 having plasticity; a particulate abrasive 12, wherein the flexible substrate 11 contains the particulate abrasive 12; and a fibrous support material 13. Hereinafter, each component constituting the plastic flexible composition 10 will be described in detail.
[0048] <Flexible substrate>
[0049] The flexible substrate 11 used here is a flexible substrate having plasticity. The flexible substrate 11 is a material having plasticity at least when in use, and can be formed of a material that always has plasticity whether in use or not. In addition, since water is often spread on the treated surface during use, a material that exhibits plasticity when in contact with water can also be used. Examples of the material of the flexible substrate 11 include petroleum resins such as polyolefin polyols, polybutene, butyl rubber, and the like.
[0050] Since the flexible substrate 11 has plasticity, when it is brought into contact with the surface to be processed and pressure is applied for roughening treatment, the flexible substrate 11 follows the shape of the surface to be processed and undergoes plastic deformation, thereby achieving a good contact state with the surface to be processed.
[0051] In addition, since the plastic soft composition 10 of this embodiment has the soft base material 11 as a main component, its shape can be easily deformed into any shape. Figure 1 In FIG. 1 , a rectangular parallelepiped is shown as an example, but the present invention is not limited to this and the clay can be deformed into any shape just like a user handles clay.
[0052] <Granular Abrasives>
[0053] The particulate abrasive 12 used here is an abrasive for roughening treatment, and is mixed with the flexible substrate 11 described above and dispersed in the flexible substrate 11. In this embodiment, the particulate abrasive 12 is an essential component as the abrasive, but other abrasives may be contained.
[0054] The granular abrasive 12 is used to roughen the surface to be processed, and needs to be mixed so that the surface of the flexible substrate 11 or a part of the granular abrasive 12 is exposed. This is because the roughening process cannot be performed sufficiently if the granular abrasive 12 is not exposed.
[0055] In this way, the surface to be processed can be roughened by exposing the granular abrasive material 12 from the surface and pressing it against the surface to be processed and repeatedly performing a rubbing action (rubbing). The type and amount of the granular abrasive material 12 can be varied in various ways depending on the type of the surface to be processed or the state of the roughening treatment to be obtained.
[0056] The granular abrasive 12 used here is a granular abrasive for roughening the surface of the treated surface, and any conventionally known granular abrasive can be used as such an abrasive without particular limitation. The granular abrasive 12 preferably has a relatively high hardness of 8 or more on the new Mohs hardness scale.
[0057] As the particulate abrasive material 12, for example, alumina particles such as sandblasting abrasive material (fused alumina), calcium carbonate, quartz, corundum (silicon carbide), ceramics, green carborundum, glass beads, etc. can be cited, as long as at least one selected from these particles is included. That is, these particulate abrasive materials can be used alone, or two or more can be mixed.
[0058] Sandblasting abrasives are white molten alumina abrasives with a high content of alumina. They are made of alumina as a chemical component. Sandblasting abrasives are abrasives used for sandblasting or general abrasives (New Mohs hardness: 12, Knoop hardness: HK2050, true specific gravity: 3.97g / cm 3 , Volume density: 1.60~1.80g / cm 3 ). Diamond is a particle formed of silicon carbide and is a widely known abrasive material as a grinding particle (new Mohs hardness: 10).
[0059] As described above, the granular abrasive material 12 is an abrasive material for roughening treatment, and the granular abrasive material 12 is mixed and dispersed in the plastic flexible composition, and a part of it is exposed on the surface of the plastic flexible composition. By exposing it in this way, and by making the plastic flexible composition contact and rub against the surface to be treated, the surface to be treated can be roughened.
[0060] In order to play the above-mentioned role, the average particle size of the granular abrasive material 12 is 10 μm or more and 1.5 mm or less, preferably 30 μm or more and 1.5 mm or less. Moreover, the average particle size is preferably 10 μm or more and 500 μm or less, more preferably 20 μm or more and 300 μm or less. When the average particle size is less than 10 μm, sufficient coarsening may not be performed. In addition, when the average particle size is greater than 1.5 mm, the coarsening may become too deep, or the dispersibility of the granular abrasive material may become insufficient. Here, the average particle size is a value measured by a laser diffraction / scattering method.
[0061] <Fibrous Support Material>
[0062] The fibrous support material 13 used here is a material that supports the above-mentioned particulate abrasive material 12 , and is mixed with the above-mentioned flexible base material 11 and is dispersed in the flexible base material 11 .
[0063] As the fibrous support material 13 used here, any support material that plays the above-mentioned role is not particularly limited. In addition, as the fibrous support material 13, a conventionally known fibrous abrasive material can also be used. When a fibrous abrasive material is used, in addition to the support of the particle-shaped abrasive material 12, it is preferred that a roughening treatment of the treated surface can also be performed. As the fibrous abrasive material, for example, a metal fibrous abrasive material such as steel wool, stainless steel wool, and a curling piece is preferred.
[0064] Steel wool is well known as an iron abrasive used in grinding and finishing of industrial products. It has various grades, including No. 0000 super fine, No. 000 super fine, medium fine, fine, coarse, medium coarse, super coarse, and No. 5 super coarse. Curled pieces are copper abrasives, and stainless steel wool is stainless steel abrasives.
[0065] As described above, the fibrous support material 13 has the function of supporting the particulate abrasive 12 by the fibers of the fibrous support material 13. Thus, when the roughening treatment with the plastic flexible composition 10 is continued, the time for the particulate abrasive 12 to fall out of the plastic flexible composition 10 or to be exposed from the inside of the plastic flexible composition 10 to the outside can be adjusted.
[0066] For example, in a cross-sectional view perpendicular to the length direction (fiber length direction) of the fibrous support material 13, when the width of the fibrous support material 13 in a direction perpendicular to the thickness (about 3 μm) is referred to as "fiber diameter width", in order to exert the above-mentioned effect, the average fiber diameter width of the fibrous support material 13 is 10 μm or more and 1.0 mm or less. Moreover, the average fiber diameter width is preferably 10 μm or more and 500 μm or less, and more preferably 20 μm or more and 300 μm or less. When the average fiber diameter width is less than 10 μm, it is easy to deform, and the supporting effect of the particulate abrasive 12 may become insufficient. In addition, when the average fiber diameter width is greater than 1.0 mm, it becomes difficult to deform, and the effect of the plastic soft composition 10 following the curved surface shape of the treated surface may be hindered.
[0067] The average fiber length of the fibrous supporting material 13 is preferably 5 mm or more and 30 mm or less, and more preferably 10 mm or more and 20 mm or less.
[0068] <Mixed ratio>
[0069] As described above, the plastic flexible composition of the present embodiment is a composition in which the particulate abrasive 12 and the fibrous supporting material 13 are mixed in the flexible base material 11 and these components are dispersed and contained in the flexible base material.
[0070] Here, the amount of the particulate abrasive 12 is 5 parts by mass or more and 50 parts by mass or less relative to 100 parts by mass of the flexible substrate. Moreover, the amount of the particulate abrasive 12 is preferably 10 parts by mass or more and 40 parts by mass or less relative to 100 parts by mass of the flexible substrate, and more preferably 20 parts by mass or more and 30 parts by mass or less. By mixing the particulate abrasive 12 into the flexible substrate 11 at such a mixing ratio, a part of the particulate abrasive 12 is exposed on the surface of the flexible substrate 11, and a structure preferred for grinding purposes can be formed.
[0071] Here, the amount of the fibrous support material 13 is 2 parts by mass or more and 50 parts by mass or less relative to 100 parts by mass of the flexible substrate. Moreover, the amount of the fibrous support material 13 is preferably 2 parts by mass or more and 5 parts by mass or less relative to 100 parts by mass of the flexible substrate, and more preferably 3 parts by mass or more and 4 parts by mass or less. By mixing the fibrous support material 13 into the flexible substrate 11 at such a mixing ratio, the particulate abrasive material 12 can be supported by the fibers in the flexible substrate 11.
[0072] The mass ratio of the particulate abrasive 12 to the fibrous supporting material 13 is preferably 10:2 to 10:4, more preferably 10:2.5 to 10:3. The above-mentioned mixing range can achieve a well-balanced grinding effect and abrasive supporting effect.
[0073] [Roughening method]
[0074] Next, refer to Figure 2 A method for roughening a treated surface using the plastic soft composition described above is described. Figure 2 This is a diagram for explaining the roughening treatment method, and is a diagram viewed from the side in order to understand the contact state.
[0075] like Figure 2 As shown, the roughening method of this embodiment first brings the plastic soft composition 10 into contact with the surface 100 of the article to be treated, and then applies pressure to the plastic soft composition 10 to plastically deform it so as to follow the shape of the surface to be treated (plastic deformation step).
[0076] At this time, since the flexible substrate 11 plastically deforms according to the shape of the processed surface 100, even if the processed surface 100 has a curved surface, it can be easily deformed into a shape corresponding to the curved surface shape, thereby ensuring the same contact state with the processed surface 100.
[0077] In order to facilitate deformation of the plastic flexible composition 10 to follow the shape of the surface 100 to be treated, the plastic flexible composition 10 may be heated during the plastic deformation step.
[0078] After the plastic deformation, a roughening treatment (roughening step) is performed in which the plastic flexible composition 10 is rubbed along the surface 100 to form irregularities on the surface 100 .
[0079] In the roughening treatment, the above steps are performed after water is sprayed on the treated surface 100. Thus, by making water present on the surface of the treated surface 100, the shavings (chips) generated during the roughening treatment can flow together with the water, and the roughening treatment can be performed efficiently.
[0080] At this time, as described above, a part of the particulate abrasive 12 contained in the plastic flexible composition 10 is exposed from the surface of the flexible base 11. Therefore, by rubbing the plastic flexible composition 10 while contacting with the surface to be treated 100, the particulate abrasive 12 exposed on the surface of the plastic flexible composition 10 forms irregularities on the surface to be treated 100, and roughening can be performed.
[0081] At this time, since the particulate abrasive 12 is contained and held by the flexible substrate 11, the particulate abrasive 12 is not fixed unlike the conventional method and can be polished while rolling. In addition, at this time, a part of the chips is taken into the chips of the flexible substrate 11, but most of them are discharged from between the treated surface 100 and the plastic soft composition 10 to the outside and removed together with the water on the treated surface 100.
[0082] In addition, at this time, the fibrous supporting material 13 plays the role of supporting the particulate abrasive material 12 in the flexible substrate 11, and therefore also plays the role of suppressing the particulate abrasive material 12 from falling to the outside of the plastic flexible composition 10 even though the particulate abrasive material 12 moves in the flexible substrate 11, and can maintain the roughening effect of the plastic flexible composition 10 for a long time.
[0083] In addition, the surface of the article is not particularly limited, and can be made of various materials such as metal, wood, resin, stone, etc. In addition, the "roughening treatment" in this specification includes not only the roughening treatment as a pre-treatment of the coating process, but also the treatment of scratching uneven scratches on the surface of the article without coating. A typical example of this roughening treatment method is the roughening treatment performed in the pre-treatment of the coated surface of the automobile body and its components, etc.
[0084] (Variant 1)
[0085] In the plastic flexible composition 10, an activator having a cleaning effect may be blended in the flexible base material 11. By including such an activator having a cleaning effect, the roughening treatment can be performed while the surface to be treated is cleaned by the activator simultaneously with the roughening treatment.
[0086] By performing the roughening treatment while washing, the treated surface immediately after being treated with the plastic soft composition 10 can be kept clean, so that the next coating process can be carried out immediately. For example, when oil stains are attached to the treated surface 100, the oil stains themselves are not removed during the roughening treatment, but the inclusion of the above-mentioned activator can effectively remove the oil stains.
[0087] When the activator having the cleaning effect is added, the amount thereof is preferably 0.2 to 0.5 parts by mass, more preferably 0.2 to 0.3 parts by mass, per 100 parts by mass of the flexible substrate in order to effectively exert the cleaning effect.
[0088] (Variant 2)
[0089] In the plastic flexible composition 10, a water-soluble flexible component can be used as a part of the flexible base material 11. Examples of the flexible component include natural clay and the like.
[0090] By adding a water-soluble soft component, when the roughening operation is continued, if the soft component is exposed on the surface of the soft base material 11, the soft component is dissolved by water spread on the treated surface 100, and new particulate abrasives 12 can be exposed on the surface of the plastic soft composition 10. In addition, the soft component preferably has plasticity.
[0091] Thus, the newly exposed particulate abrasive 12 can contribute to the roughening treatment later. That is, by adopting the above-mentioned configuration, the particulate abrasive 12 can be sufficiently exposed on the surface of the plastic flexible composition 10 even when used for a long time, and the roughening performance can be maintained.
[0092] When the flexible component is added, the amount thereof is preferably 0.2 to 1.5 parts by mass, more preferably 0.3 to 0.8 parts by mass, based on 100 parts by mass of the flexible substrate, in order to effectively exhibit the above-mentioned effect.
[0093] (Variant 3)
[0094] The plastic soft composition 10 may be fixed to a polishing device. Since the plastic soft composition 10 is formed by uniformly dispersing the particulate abrasive 12 in the flexible base material 11, a part of the particulate abrasive 12 is exposed from the surface of the flexible base material 11 not only on the surface in contact with the surface to be processed but also on other surfaces.
[0095] Therefore, when the plastic soft composition 10 is directly held by hand and the roughening treatment is directly performed, the palm or fingers may be injured. Therefore, in order to use it more safely, it is preferable to fix the plastic soft composition 10 to a grinding device for roughening treatment. Figure 3 Schematic diagram of the structure in which the plastic flexible composition according to the present embodiment is fixed to a polishing material is shown in FIG.
[0096] The grinding material used here can be any grinding material that can perform a roughening process such as a rotational motion, a reciprocating motion, or a vibration. For example, the grinding material that can perform a roughening process based on a rotational motion can be exemplified as follows: Figure 3 The grinding device 20 shown in the figure includes a main body 21 , a rotation drive shaft 22 extending from the main body 21 , and a fixing portion 23 attached to the rotation drive shaft 22 .
[0097] By fixing the flexible plastic composition 10 to the fixing portion 23 of the polishing tool 20, the desired surface to be treated of the flexible plastic composition 10 can be roughened without directly grasping the flexible plastic composition 10 with hands during roughening.
[0098] As the fixing means of the fixing portion 23 , for example, fixing by an adhesive layer can be exemplified, and other well-known fixing methods can be used.
[0099] [Example]
[0100] Next, the present invention will be described in further detail by way of examples.
[0101] A polyolefin polyol was used as a flexible substrate. In 100 g of the flexible substrate, 25 g of corundum with an average particle size of 300 μm as a granular abrasive, 5 g of steel wool with an average fiber diameter width of 20 μm as a fibrous supporting material, and 10 g of alumina sand as other components were mixed to produce a plastic flexible composition.
[0102] After water was sprinkled on the surface of a plate-shaped member of a vehicle coating surface having a curved surface with a curvature of 300R as the surface to be treated, the obtained plastic soft composition was pressed on the surface by hand to plastically deform it into the shape of the surface to be treated. When the surface shape was fully adapted, the plastic soft composition was moved while rubbing along the surface, and this action was repeated about 3 to 5 times to perform a roughening treatment.
[0103] The water on the surface was scraped off with a rubber scraper to dry the treated surface, and then the surface after roughening was visually observed. The result confirmed that the roughening was roughly uniform. In addition, the result of measuring with the surface roughness meter Surftest of MITUTOYO showed that the average roughness before measurement was 3 μm, but after treatment, it was 3 to 8 μm.
[0104] In addition, the present invention is not limited to the description of the above-mentioned embodiments, and the constituent elements can be deformed and concretized within the scope of the main purpose of the present invention. In addition, various changes can be made by appropriately combining multiple constituent elements disclosed in the embodiments, adding other known devices, etc.
Claims
1. A plastic soft composition having: Soft substrate with plasticity; a particulate abrasive, wherein the flexible substrate contains the particulate abrasive, and the average particle size of the particulate abrasive is not less than 10 μm and not more than 1.5 mm; and The flexible substrate contains the fibrous supporting material, and the average fiber diameter of the fibrous supporting material is 10 μm or more and 1.0 mm or less.
2. The plastic soft composition according to claim 1, wherein The flexible substrate is composed of a resin material containing at least one selected from polyolefin polyol, polybutene, and butyl rubber.
3. The plastic soft composition according to claim 1, wherein The granular abrasive material includes at least one selected from alumina particles, corundum, and glass beads.
4. The plastic soft composition according to claim 1, wherein The fibrous support material includes at least one selected from steel wool, a curled piece, and stainless steel wool.
5. The plastic soft composition according to claim 1, wherein The particulate abrasive is contained in an amount of 5 parts by mass or more and 50 parts by mass or less based on 100 parts by mass of the flexible base.
6. The plastic soft composition according to claim 5, wherein The fibrous supporting material is contained in an amount of 2 parts by mass or more and 50 parts by mass or less based on 100 parts by mass of the flexible substrate.
7. The plastic soft composition according to claim 1, wherein The flexible substrate also contains an active agent having a cleaning effect.
8. The plastic soft composition according to claim 1, wherein The plastic soft composition is fixed to a grinding device capable of performing at least one action selected from rotation, reciprocation and vibration.
9. A roughening method, comprising the following steps: A step of bringing a plastic soft composition into contact with a surface to be treated and applying pressure to the plastic soft composition so as to follow the shape of the surface to be treated to plastically deform the composition; as well as a step of roughening the treated surface by rubbing the plastic soft composition in contact with the treated surface along the treated surface, The plastic soft composition comprises: a soft substrate having plasticity; a granular abrasive, wherein the soft substrate contains the granular abrasive, and the average particle size of the granular abrasive is greater than or equal to 10 μm and less than or equal to 1.5 mm; and a fibrous supporting material, wherein the flexible substrate contains the fibrous supporting material, and the fibrous supporting material has an average fiber diameter width of 10 μm or more and 1.0 mm or less.
10. The roughening method according to claim 9, wherein: The treated surface is the surface of an object made of metal, wood, resin or stone.
11. The roughening method according to claim 9, wherein: The treated surface is a painted surface.