JP2002302863A - Fiber structure for coating tool and method of producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fiber structure for coating tool that has excellent paint absorption (paint retention), outflow properties (paint discharge) and paint- finishing properties as well as a coating tool utilizing the fiber structure. SOLUTION: The objective fiber structure for coating tools has (A) an upright fiber layer (pile) including 30-100 mass % of hot melting crimped fiber with crimp elongation of 5-30% on one face and the network hot-melting layer formed by partially fusing the hot-melting crimped fibers in the inside of the upright fiber layer and has the bulky layer on the surface of the outside. In another embodiment, the objective fiber structure for coating tools comprises (B) an upright fiber layer (pile) including 30-100 mass % of hot melting crimped fiber with crimp elongation of 5-30% on one face and the porous skin layer of 100-1,000 μm thickness formed by partially fusing the hot-melting crimped fibers on the surface of the upright fiber layer. The fiber structures for coating tool (A) or (B) used to make coating tools, for example, paint roller, trowel brush and the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fibrous structure for a paint tool and a method for producing the same. More specifically, the present invention relates to a fiber structure used for producing a coating tool suitable for coating a low-viscosity coating material, particularly a low-viscosity photocatalytic coating material using water and / or alcohol as a solvent, and a method for producing the same.

[0002]

2. Description of the Related Art Paint tools include brushes, paint rollers, iron brushes, and the like, and these are selected according to the type and shape of a surface to be coated, the level of skill of a coater, and the like.
Among them, the paint roller is one of the most frequently used paint tools by the paint industry. 2. Description of the Related Art Conventionally, a general-purpose paint roller is formed by winding a fur, a woolen knitted fabric in which a synthetic fiber pile yarn is implanted, a nonwoven fabric, or the like around a plastic or paper core material rotating around an axis. With these conventional paint rollers, depending on the purpose of painting, the type of paint, etc., the selection of the type of fur, the type of synthetic fiber and the length of the nap that constitute the nap of the woolen knitted fabric, the type of fiber that constitutes the nonwoven fabric, etc. And there is no universal paint roller. Also,
The performance of a paint roller is often evaluated by “contain”, which indicates the absorption performance of the paint, “discharge”, which indicates the outflow performance of the paint, and “finish”, which indicates the workmanship of the paint. However, it was difficult to sufficiently satisfy these performances.

[0003] In view of the above, various types of paint rollers have been proposed for the purpose of improving the above-described paint absorption performance ("contained"), paint outflow performance ("discharge"), and the "finish" of the painted surface. I have. For example, Japanese Utility Model Application 2-46
No. 79 discloses that the pile is not collapsed due to the repetition of compression applied in the painting operation, so that the impregnating property of the paint (paint absorption performance, “containment”) is not impaired in a short period of time. A high pile knitted fabric using low melting point composite fibers composed of a low melting point component and a high melting point component at a ratio of 10% or more of the pile constituting fibers for the purpose of preventing the pile constituting fibers, and the pile constituting fibers are partially bonded to each other. A roller-shaped brush in which a knitted fabric is wound around a roller core is described. Further, Japanese Utility Model Laid-Open No. 2-100674 discloses that, in order to improve the finish of coating, a cylindrical roll made of a soft foamed plastic is attached to the outer periphery of a hollow cylindrical core material, and fine single fibers are attached to the surface of the cylindrical roll. And a coating roller in which a notch is provided on the surface of a cylindrical roll. Furthermore, 4-98468
In the publication, for the purpose of increasing the amount of adsorbed paint, facilitating the outflow of paint, and facilitating the washing of paint, a mesh-shaped paint reservoir structure made of polyurethane open cells and the like is provided on the paint impermeable base. Further, there is described a paint applicator in which an outer layer made of a flexible network is joined by a mesh portion thereon.

[0004] However, the aforementioned Japanese Utility Model Laid-Open Publication No. 2-467.
In the roller-shaped brush described in Japanese Patent Publication No. 9, the pile constituent fibers are simply and partially adhered at random over the entire thickness direction of the pile portion, and the pile portion functions as a paint reservoir. Since the coating does not have a sufficient amount, there is a problem in that the absorption performance ("containment") of the coating is inferior, that the coating easily drips, and that it is difficult to use. Moreover, it is difficult to apply the paint thinly and uniformly. In addition, the above-mentioned Japanese Utility Model Application Laid-Open No. 2-100674.
Roller and coating roller disclosed in
The paint applicator described in Japanese Patent No. 98468 is also not sufficiently satisfactory in terms of paint absorption performance ("included"), paint outflow performance ("exhalation"), and painted surface "finish". Absent. In other words, when performing painting using a paint tool such as a paint roller, in order to prevent the dripping (liquid dripping) of the paint with the paint adhered to the paint tool,
It is widely practiced to lightly press a coating tool on a net, for example, to perform a preparatory operation for removing excess paint, and then to perform coating. However, in the conventional paint roller described in the above-mentioned publications and the like, the ability to retain the paint is not sufficient, so that most of the paint is easily lost from the paint roller during the above-described preparation operation, and the painting action is performed smoothly. It is difficult.

Further, in recent years, photocatalytic paints containing a so-called photocatalyst such as anatase-type titanium oxide have been attracting attention due to their excellent action of decomposing air pollutants, antibacterial action, deodorant action, antifouling action, etc. Many proposals have been made on photocatalytic paints and coating methods thereof (for example, JP-A-11-246787, JP-A-2000-1291).
74, JP-A-2000-189888, JP-A-2000-273355, etc.). Photocatalytic paint is
Due to the above-mentioned excellent properties, various building exterior walls, building interior walls, window glass exterior and interior surfaces, bridges, highway noise barriers, railway vehicles and automobile bodies and window glass exterior and interior surfaces, and other broad areas Construction for various applications is being attempted. The photocatalytic paint generally uses water and / or alcohol as a medium (solvent), and has an extremely low viscosity (for example, a water-based medium has a viscosity of about 1 mPa · s). Therefore, in the case of a paint tool such as a paint roller or a trowel brush, if the absorption performance (“containment”) of the paint is low, there is a problem that the photocatalytic paint is dripped when applied, and it is difficult to use, and the finish is good. Can not be formed. In particular, photocatalytic paints are required to be thinly coated in order to sufficiently exhibit the function of the photocatalyst. However, as described above, the conventional paint tools such as the above-described paint roller have low paint absorption performance ("include"), and it is difficult to hold a sufficient paint, thereby causing a problem of dripping. It was easy to occur, and the discharge of the paint was not performed smoothly, and it was extremely difficult to control the thickness of the coating film.

[0006] In the case of spray coating, it is possible to apply a thin film using a low-viscosity paint, but the yield is extremely poor due to scattering of the paint and the like, so that it is not suitable for painting an expensive photocatalytic paint. From such a point, a paint roller that can apply a low-viscosity paint such as a photocatalytic paint without dripping, unevenness in the thickness of the coating film, and with a good yield, with a uniform thickness and a thin thickness. There has been a demand for the development of paint tools such as iron brushes and materials used for such paint tools.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a paint absorbing performance ("contained") and a paint outflow performance ("discharge").
And excellent finish performance of the painted surface, without dripping, uneven thickness of the coating, etc., uniform thickness,
An object of the present invention is to provide a material for a paint tool capable of forming a coating film having a good finish, a method for producing the material, and a paint tool such as a paint roller and a trowel brush using the material. In particular, the present invention provides a thin coating having a uniform thickness and a good finish without causing dripping or uneven coating thickness even when using a low-viscosity coating such as a photocatalytic coating. An object of the present invention is to provide a material for a coating tool capable of forming a film smoothly, a method for producing the same, and a coating tool using the material, such as a paint roller or a trowel brush.

[0008]

The present inventors have intensively studied to achieve the above object. As a result, on one surface of the ground structure such as a woven or knitted fabric, a standing fiber layer (pile layer) made of fibers containing a specific ratio of heat-fusible crimped fibers having a predetermined range of crimp elongation is formed. On the surface side of the standing fiber layer, the crimped fibers are not fused together to form a bulky bulky layer, and a mesh-like fusion layer in which the crimped fibers are partially fused together is formed inside the bulky layer and specified. Was manufactured. And
Various investigations were made on the properties of the fiber structure obtained thereby, and it was found that the network fusion-bonded layer of the fiber structure was excellent in holding ability of paint, and that the heat-fusible crimped fibers were partially fused. The reticulated fusion layer has good elasticity. Therefore, when a coating tool such as a paint roller or a trowel brush is manufactured using the fibrous structure, the paint absorption performance (“including”), the paint outflow performance (“ It has been found that a coating tool having excellent discharge performance and the finished performance of a coated surface can be obtained, and a coating film having a uniform thickness and a good finish can be formed without causing dripping and unevenness of the coating film thickness. . In particular, forming the above-mentioned reticulated fusion layer inside the standing fiber layer,
Such a fibrous structure having a bulky bulky layer formed on the outside thereof is suitable as a material for a coating surface in a coating tool such as a paint roller or a trowel brush for applying a low-viscosity paint such as a photocatalytic paint. I found something.
And the present inventors, such a fiber structure, regardless of its manufacturing method, as long as it has the specific structure described above, is suitable as a material for a coating tool,
Fiber formed by forming a standing fiber layer (pile layer) made of crimped fibers containing a specific ratio of heat-fusible crimped fibers and having a predetermined range of crimp elongation on one surface of a ground structure such as a woven or knitted fabric. It has been found that the structure can be manufactured smoothly by spraying water from the other surface of the structure without the standing fiber layer and then heating it at a predetermined temperature.

Further, the present inventors have developed a standing fiber layer made of fibers containing a specific ratio of heat-fusible crimped fibers having a predetermined range of crimp elongation on one surface of a ground structure such as a woven or knitted fabric. In the fibrous structure having the (pile layer) formed therein, instead of the above-described method in which crimped fibers are partially fused to each other at the inner portion of the standing fiber layer, the crimped surface is provided on the surface portion of the standing fiber layer. It has been found that even when a method of forming a porous skin layer having pores through which a paint can pass through by fusing fibers is adopted, a material for a coating tool having excellent coating performance and finish of a coated surface can be obtained. Was. That is, in the fibrous structure in which the porous skin layer is formed by fusing the heat-fusible crimped fibers on the surface of the standing fiber layer, the porous skin layer is formed when the paint is applied to the fibrous structure. The paint particles are uniformly held in a large number of pores existing in the inside. On the other hand, a solvent such as water is retained in the inner crimped fiber layer through the porous skin layer. Then, when the fibrous structure is pressed during coating, the solvent held in the inner crimped fiber layer flows back to the surface, and the paint fine particles held in the pores of the porous skin layer on the surface. Was conveyed to the surface to be coated to form a uniform coating film on the surface to be coated. The fiber structure having the porous skin layer of the standing fiber layer is also coated with a paint roller or a trowel brush for applying a low-viscosity paint containing fine paint particles, such as a photocatalytic paint. Is found to be particularly suitable as a material for use. The present inventors have found that such a fibrous structure has a specific ratio of a heat-fusible crimped fiber on one surface of a ground structure such as a woven or knitted fabric and has a crimped elongation in a predetermined range. That the fiber structure obtained by forming the standing fiber layer (pile layer) formed by thermocompression bonding from the surface side at a temperature equal to or higher than the melting point of the heat-fusible crimped fiber can be produced smoothly. The present invention has been completed based on those findings.

That is, the present invention provides (1) a ground fiber layer having a standing fiber layer on one side of a ground structure, and the standing fiber layer has a crimp elongation of 5%.
The standing fiber layer is composed of a fiber containing 30 to 100% by mass of the heat-fusible crimped fiber of 30% to 30% by mass. A fibrous structure for a paint tool (hereinafter referred to as a "coating tool fiber structure"), wherein the fibrous structure forms a net-like fusion layer formed by adhesion, and an upper outer portion of the net-like fusion layer forms a bulky bulky layer. Fiber structure A ").

In the present invention, (2) the height of the standing fiber layer is 3 to 20 mm, and the thickness of the mesh-like fusion layer is:
(1) The fibrous structure A for a coating tool according to the above (1), wherein the ratio of [thickness of the bulky layer] is 9: 1 to 1: 9; and (3) the water retentivity of the reticulated fusion layer is a reticulated fusion layer. The fiber structure A for a coating tool according to the above (1) or (2), which is 4 to 16 times the mass of the fiber forming the above, is included as a preferred embodiment.

Furthermore, the present invention provides (4) an upright fiber layer on one surface of the ground structure, wherein the upright fiber layer has a crimp elongation of 5 to 5.
The heat-fusible crimped fiber is composed of fibers containing 30% by mass of 30% to 100% by mass of the heat-fusible crimped fiber, and the surface portion of the standing fiber layer forms the standing fiber layer. A fibrous structure for a coating tool (hereinafter, sometimes referred to as a "fibrous structure B for a coating tool") characterized by forming a porous skin layer having a thickness of 100 to 1000 m by fusion of fibers. .

The present invention provides (5) the fiber structure B for a coating tool according to (4), wherein the height of the standing fiber layer including the porous skin layer is 2 to 18 mm; The heat-fusible crimped fiber constituting the standing fiber layer is composed of a low-melting polymer and a fiber-forming polymer, and a composite spun fiber having a low-melting polymer present on at least a part of the fiber surface and / or a mixed spun fiber. The above (1) to which are crimped fibers composed of spun fibers
As a preferred embodiment, the fiber structure A for a coating tool of any one of (3) or the fiber structure B for a coating tool of the above (4) or (5) is included.

Further, the present invention provides (7) the above (1) to
A paint roller or a trowel brush in which any one of the fiber structure A for a coating tool or the fiber structure B for a coating tool of (6) is attached to a substrate as a coating surface; (8) for coating a photocatalytic coating. The paint roller or the iron brush of the above (7) is included as a preferred embodiment.

The present invention also provides (9) a standing fiber layer comprising fibers containing 30 to 100% by mass of heat-fusible crimped fibers having a crimp elongation of 5 to 30%. After spraying water from the other surface of the tissue having the fiber structure on one surface with the other surface having no standing fiber layer facing upward, the above-mentioned heat fusion is performed. Melting point of conductive crimped fiber
(1) wherein the heat-fusible crimped fibers are partially fused inside the standing fiber layer to form a mesh fusion layer. And (10) a crimp elongation of 5 to 5%.
A fiber structure having a standing fiber layer made of fibers containing 30% to 100% by mass of heat-fusible crimped fibers on one side of the ground tissue is heated from the surface side of the standing fiber layer. A thermocompression treatment is performed at a temperature equal to or higher than the melting point of the fusible crimped fiber to fuse the heat fusible crimped fiber on the surface portion, and a porous skin layer having a thickness of 100 to 1000 μm is formed on the surface of the standing fiber layer. Forming the fibrous structure B for a coating tool according to the above (4).

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail. The fiber structure A for a paint tool and the fiber structure B for a paint tool of the present invention are both based on a fiber structure having a standing fiber layer on one surface of the ground tissue. The standing fiber layer is a layer composed of a large number of piles, and the pile constituting the standing fiber layer has a heat-fusible crimped fiber having a crimp elongation of 5 to 30% of 30 to 100 mass%. % Of the fibers. In the fiber structure A for a paint tool and the fiber structure B for a paint tool of the present invention, 80 to 100% of the fibers (pile) constituting the standing fiber layer have a crimp elongation rate of 5%.
Preferably, it is composed of about 30% of a heat-fusible crimped fiber,
More preferably, 100% (the total amount of the pile) is composed of a heat-fusible crimped fiber having a crimp elongation of 5 to 30%.

When the content of the heat-fusible crimped fiber in the fiber (pile) constituting the standing fiber layer is less than 30% by mass, fusion between the crimped fibers constituting the standing fiber layer does not occur. Will be enough. As a result, in the fiber structure A for a coating tool, partial fusion between fibers (that is, partial fusion between heat-fusible crimped fibers and heat-fusible crimped fibers) is performed on the inner portion of the standing fiber layer. It becomes difficult to form a reticulated fusion layer by partial fusion with other fibers), and the absorption performance (“containment”) of the paint is reduced, and the resilience of the reticulated fusion layer is reduced. Further, in the fiber structure B for a coating tool, the formation of the porous skin layer on the surface portion of the standing fiber layer is insufficient, the smoothness of the surface is impaired, and the finish of the painted surface is deteriorated.

The heat-fusible crimped fiber constituting at least a part of the fiber (pile) constituting the standing fiber layer comprises a low-melting polymer and a fiber-forming polymer, and at least a part of the fiber surface. A crimped fiber composed of a composite spun fiber and / or a mixed spun fiber in which a low melting point polymer is present is preferably used. In this case, the heat-fusible crimped fiber may be self-fused at 110 to 190 ° C. in a dry heat state or fused to other fibers, and / or hot water of 95 ° C. or more under wet heat and no tension. It is more preferable that the material is softened and self-fused or fused to other fibers.

When the heat-fusible crimped fiber is the above-mentioned conjugate spun fiber or mixed spun fiber, the composite formation or mixing form may be, for example, a fiber-forming polymer as a core component and a low-melting polymer as a sheath. Core-sheath type as a component, a sea-island type using a fiber-forming polymer as an island component and a low-melting polymer as a sea component, and a side-by-side type where a fiber-forming polymer and a low-melting polymer form a laminated structure. Among them, a core-sheath type or a sea-island type is preferable.

Examples of the low melting point polymer constituting the composite spun fiber and the mixed spun fiber preferably used as the heat-fusible crimped fiber include, for example, olefins such as ethylene-vinyl alcohol copolymer, polyethylene and polypropylene. And a polyamide-based polymer. Among them, an ethylene-vinyl alcohol-based copolymer is preferable because of its high hydrophilicity. Further, as the fiber-forming polymer constituting the composite spun fiber and the mixed spun fiber, for example, polyester, polyamide,
Polypropylene and the like can be mentioned, and among them, polyester is preferable because of good crimp imparting property.

As described above, the heat-fusible crimped fiber constituting the standing fiber layer needs to have a crimp elongation of 5 to 30%. When the crimp elongation of the heat-fusible crimped fiber is less than 5%, the fiber (pile) is formed in the standing fiber layer.
The contact between them becomes insufficient. As a result, in the fiber structure A for a coating tool, a net-like fusion layer due to partial fusion of fibers is not formed inside the standing fiber layer, so that the paint absorption performance ("including") and the elasticity of the mesh-like fusion layer are improved. Is reduced. Further, in the fiber structure B for a coating tool, the formation of the porous skin layer on the surface of the standing fiber layer is insufficient, the smoothness of the surface is impaired, and the finish of the painted surface is deteriorated. The bulkiness of the bulky layer below the layer is reduced, the absorption performance ("including") of the paint is reduced, and the coatability is poor,
Further, it becomes difficult to control the thickness of the coating film at the time of painting. On the other hand, when the crimp elongation rate of the heat-fusible crimped fibers constituting the standing fiber layer exceeds 30%, the coating material fiber structure A and the coating material fiber structure B both use the paint. The outflow performance ("discharge") of the film decreases, and the paintability becomes poor, and it is difficult to control the thickness of the coating film. The fiber (pile) constituting the standing fiber layer has a crimp elongation of 1
The fact that the composition is formed using 0 to 20% of heat-fusible crimped fiber gives better control of paint absorption performance ("contain"), outflow performance ("discharge"), and coating film. Is preferred. In addition, the "crimp elongation rate" in this specification means the crimp elongation rate measured by the method described in the section of Examples below.

In the fiber structure A for a paint tool and the fiber structure B for a paint tool of the present invention, the fibers (pile) constituting the standing fiber layer are different from the above heat-fusible crimped fibers. The fiber may be contained at a ratio of 0 to 70% by mass, but the type of the other fiber is not particularly limited. For example, one or two of polyester, polyamide, polypropylene, acrylic polymer, polyvinyl alcohol, polyvinylidene chloride, and the like. A non-heat-fusible crimped or non-crimped synthetic fiber comprising
Examples thereof include semi-synthetic fibers such as viscose and rayon, cotton, wool, silk, and the like, and one or more of them can be used. When the standing fiber layer is formed using other fibers together with the above-mentioned heat-fusible crimped fibers, among the above-mentioned fibers, the polyester fiber has a crimping property, heat-fusibility and adhesiveness with the fibers. It is preferably used from the point of view. When the standing fiber layer is formed by using heat-fusible crimped fibers and other fibers in combination, it is preferable that both are sufficiently mixed and dispersed.

The single-fiber fineness of the heat-fusible crimped fiber and other fibers constituting the standing fiber layer (pile portion) is preferably 1 to 15 dtex from the viewpoint of easy inclusion of the coating material. More preferably, it is 7 dtex. Also,
The pile density in the standing fiber layer is to prevent pile inversion,
From the viewpoint of the absorption performance (“include”) of paint, outflow performance (“exhalation”), finish of paint, etc., the fibrous structure 1
The number is preferably 7,000 to 50,000 (single fiber) per cm ^2, more preferably 10,000 to 30,000. Further, the standing fiber layer may be formed from piles (fibers) having the same height, or may be formed from a plurality of piles (fibers) having different heights. However, in any case, the outermost surface portion of the standing fiber layer needs to have a uniform height. Further, the fibers (pile) constituting the standing fiber layer are preferably cut and piled from the viewpoint of coatability, finish of the coating film, and the like.

The ground structure of the fiber structure A for a paint tool and the fiber structure B for a paint tool of the present invention is as follows: the pile holding portion constituting the standing fiber layer, and the fiber structure for a paint tool of the present invention. It functions as a base for attaching A and the fiber structure B for a coating tool to the coating tool base. The type of the ground structure in the fiber structure A for a paint tool and the fiber structure B for a paint tool is not particularly limited, and a woven fabric, a knitted fabric, a nonwoven fabric entangled by needle punching or fluid treatment, and two or more of them May be used. Further, the types of fibers and yarns forming the ground structure are not particularly limited, and may be formed from any of the synthetic fibers, semi-synthetic fibers, and natural fibers as described above. Furthermore, the basis weight of the ground structure is not particularly limited, and can be adjusted as appropriate.
As described above, the standing fiber layers in the fiber structure A for a paint tool and the fiber structure B for a paint tool of the present invention contain, as described above, a heat-fusible crimped fiber having a crimp elongation of 3 to 10%. It is necessary to be composed of fibers (pile) containing 100% by mass, but the ground structure may or may not contain heat-fusible crimped fibers. When the ground structure contains heat-fusible crimped fibers, the heat-fusible crimped fibers fuse and fix the fibers (pile) constituting the standing fiber layer to the ground structure to prevent the pile from coming off. Perform the function.

The method for producing the fiber structure which forms the basis of the fiber structure A for a paint tool and the fiber structure B for a paint tool of the present invention is not particularly limited. For a standing fiber layer (pile) containing 3 to 10% by mass of heat-fusible crimped fibers of 3 to 10%
Can be manufactured according to a conventionally known pile fabric manufacturing method.

In the fibrous structure A for a coating tool of the present invention, a heat-fusible crimped fiber having a crimp elongation of 3 to 10% is contained on one side of the ground structure in a proportion of 30 to 100% by mass. In a fibrous structure having an upright fiber layer made of fibers (pile), a partial fusion of heat-fusible crimped fibers inside the upright fiber layer (that is, a partial fusion of the heat-fusible crimped fibers). Wear and / or
Alternatively, there is a reticulated fusion layer formed by heat-fusing crimped fibers and other fibers), and a bulky bulky layer is formed on the surface side of the standing fiber layer outside the reticulated fusion layer. Exists.

The fiber structure A for a coating tool of the present invention will be described below with reference to FIGS. 1 and 2. FIGS. 1 and 2 are diagrams (cross-sectional views in the thickness direction) schematically illustrating an example of a fiber structure A for a coating tool of the present invention. It goes without saying that the fiber structure A for a coating tool of the present invention is not limited to those shown in FIGS. 1 and 2, 1 is a ground structure, 2 is a heat-fusible crimped fiber constituting a pile, 3 is another fiber constituting a pile, 4 is a standing fiber layer composed of a pile, and 4a is a standing fiber layer composed of a pile. The reticulated fusion layer 4b present inside the standing fiber layer 4 is a bulky bulky layer existing on the surface of the standing fiber layer 4 outside the reticulated fusion layer 4a, and 5 and 6 are heat-fusible windings. 3 shows a fused portion of a compressed fiber 2. FIG. 1 shows a fiber structure A for a coating tool in which the fibers (pile) constituting the standing fiber layer 4 are composed only of the heat-fusible crimped fibers 2. As long as the ratio of the fusible crimped fiber is 30% by mass or more, the fusible crimped fiber and other fibers may be used in combination. Also, in the fiber structure A for a coating tool in FIG. 1, the height of the fibers (pile) constituting the standing fiber layer 4 is equal to the whole,
As exemplified in the fiber structure A for a coating tool in FIG. 2, the standing fiber layer 4 may be formed from fibers (pile) having different heights. However, in that case, in order to maintain good paintability,
It is necessary to make the pile height at the outermost surface of the standing fiber layer 4 the same (the surface of the standing fiber layer becomes flat). The fiber structure A for a coating tool in FIG. 2 is an example in which the standing fiber layer 4 is formed by using a heat-fusible crimped fiber 2 having a low height and another fiber 3 having a higher height as a pile. In addition, as shown in FIG. 1, depending on the case, even in the bulky layer 4b, there may be a fusion part in which the heat-fusible crimped fibers are partially fused to some extent.

In the fibrous structure A for a coating tool shown in FIG. 1, the heat-fusible crimped fibers 2 partially contact with each other by crimping in the reticulated fusion layer 4a of the standing fiber layer 4 to form a large number. The fiber entanglement of the fiber is formed in the reticulated fusion layer 4a as compared with the fiber gap in the bulky layer 4b. Further, in the fibrous structure A for a coating tool in FIG. 2, the heat-fusible crimped fibers 2 are partially in contact with each other in the reticulated fusion layer 4a in the standing fiber layer 4 so that a large number of fusion-bonded portions 5 are formed. In addition, entanglement is formed, and the heat-fusible crimped fibers 2 and the other fibers 3 are partially in contact with each other by crimping of the heat-fusible crimped fibers, so that a large number of fused portions 6 and Entanglement is formed. As a result, the fiber gap in the reticulated fusion layer 4a is smaller than the fiber gap in the bulky layer 4b. As a result, in the fibrous structure A for a coating tool of FIGS. 1 and 2, a capillary phenomenon occurs in the reticulated fused layer 4 a, and the paint absorbed from the surface of the fibrous structure A for a coating tool forms the bulky layer 4 b. Thus, the coating material is quickly absorbed by the mesh-like fusion layer 4a, and the coating material is favorably retained on the mesh-like fusion layer 4a by the minute fiber gaps. And
When a pressing force is applied to the fiber structure A for a coating tool at the time of coating, the coating material held in the mesh-like fusion layer 4a forms fibers constituting the bulky layer 4b (heat-fusible crimped fibers and / or other fibers). Flowed again to the surface and applied to the surface to be coated.
Further, the elasticity is imparted to the reticulated fusion layer 4a by the partial fusion of the heat-fusible crimped fibers 2, so that the adjustment of the pressing force to the coating tool fiber structure A is facilitated, and the reticulated fusion is performed. The amount of the paint discharged from the layer 4a can be well controlled. In addition, the bulky layer 4b existing on the surface side of the standing fiber layer 4 has no or little heat-fused crimped fibers (heat-fused crimped fibers and / or fibers). Or other fibers), and the fibers (pile) are uniformly arranged in height, so that the paint flowing out from the mesh-like fusion layer 4a is uniformly applied to the surface to be coated. Applied. for that reason,
The fibrous structure A for a paint tool is excellent in paint absorption performance ("include"), paint outflow performance ("discharge"), and finish performance of a painted surface, and has dripping, uneven coating film thickness, etc. It is possible to form a coating film having a uniform thickness and a good finish without causing any problems, especially in a coating tool such as a paint roller or a trowel brush for applying a low-viscosity paint such as a photocatalytic paint. Suitable as a coating surface material.

Although it can be adjusted according to the type of the heat-fusible crimped fiber constituting the standing fiber layer, the fineness of the single fiber, the physical properties, the type of the coating tool to which the fiber structure A for a coating tool is attached, etc. In the fibrous structure A for a coating tool, the water-retaining ability of the mesh-like fusion layer 4a is 4 to 16 times the mass of the fiber forming the mesh-like fusion layer 4a.
It is preferably from 6 to 10 times, particularly from the viewpoint of the absorption performance (“containment”), the outflow performance (“discharge”) of the paint, and the finish of the coating film. It can be obtained by adjusting the degree of partial fusion in the adhesion layer 4a. In addition, the water retention capacity of the mesh fusion layer in this specification refers to the water retention capacity measured by the method described in the section of Examples below.

In the fiber structure A for a coating tool of the present invention, the height of the standing fiber layer 4 is generally 3 to 20 mm,
The ratio of [thickness of mesh fusion layer]: [thickness of bulky layer]: 9: 9
A ratio of 1 to 1: 9 is preferred from the viewpoints of the absorption performance ("included"), the outflow performance ("discharge") of the paint, the finish of the coating film, and the like.

The fibrous structure A for a coating tool of the present invention may be produced by any method as long as it has the above-mentioned structure. For example, it can be produced smoothly by the following method. When using a knitting and weaving machine, a nonwoven fabric manufacturing apparatus, etc. to produce single circular knitted fabric, double raschel knitted fabric, multiple woven fabric, laminated nonwoven fabric, and other fabrics, crimp elongation is 3 to 10%. (Yarn) containing 30% to 100% by mass of the elastic crimped fiber is supplied as a cut pile yarn, and a heat-fusible crimped fiber having a crimp elongation of 3 to 10% on one surface of the ground structure. 3
A fiber structure having a standing fiber layer made of fibers (cut pile) containing 0 to 100% by mass is manufactured. Next, after the cut pile yarn of the fiber structure is spread using a splitter, the other surface (back surface) having no standing fiber layer faces upward, and water is applied from the back surface to the mass of the fiber structure. 7 for
After spraying at a rate of 0 to 150% by mass, a dry heat treatment (hot air treatment or the like) is performed at a temperature of [melting point of heat-fusible crimped fiber−50 (° C.)] or more. As a result, the fibrous structure A for a paint tool of the present invention in which the mesh fusion layer exists inside the standing fiber layer and the bulky bulky layer exists on the surface side of the standing fiber layer outside the mesh fusion layer. Is obtained.

In the above-mentioned method, water is sprayed from the back surface without the standing fiber layer (cut pile) with the back surface without the standing fiber layer (cut pile) facing upward and the back surface without the standing fiber layer (cut pile) facing down. Water sprayed from the ground passes through the ground tissue and moves to the vicinity of the tip of the cut pile constituting the standing fiber layer (downflow)
However, the vicinity of the tip of the cut pile is rich in water, and the vicinity of the root and the middle portion of the cut pile is low in moisture. By performing the dry heat treatment in that state, the tip of the cut pile containing a large amount of water is suppressed from being heated by the latent heat of vaporization of the water, so that the heat-fusible crimped fibers are prevented from softening and melting, and the tip of the cut pile is cut. The portion (the surface side of the standing fiber layer) becomes a bulky bulky layer. on the other hand,
Since the root and the middle part of the cut pile are low in moisture, the heat-fusible crimped fibers are softened or melted during heating, causing partial fusion between the fibers, resulting in a net-like fusion layer inside the standing fiber layer. Is formed.

In the fibrous structure B for a coating tool of the present invention, a heat-fusible crimped fiber having a crimp elongation of 3 to 10% is contained on one side of the ground structure in a proportion of 30 to 100% by mass. In a fibrous structure having an upright fiber layer composed of fibers (pile), the heat-fusible crimped fiber constituting the upright fiber layer has a thickness of 100 to 100 on the surface of the upright fiber layer. 1000
There is a μm porous skin layer.

Hereinafter, the fiber structure B for a paint tool of the present invention will be described with reference to FIG. FIG. 3 is a diagram (a cross-sectional view in the thickness direction) schematically illustrating an example of the fiber structure B for a coating tool of the present invention. The fiber structure B for a coating tool of the present invention is shown in FIG.
You are not limited to anything. In FIG.
1 is a ground structure, 2 is a heat-fusible crimped fiber constituting a pile,
Reference numeral 4 denotes an upright fiber layer formed of a pile, and 4c denotes a porous skin layer formed by fusion at the surface portion of the heat-fusible crimped fiber 2 constituting the upright fiber layer 4, and 4d denotes a non-fusible layer. The fiber-attached layer 7 indicates a hole in the porous skin layer 4c. FIG. 3 shows a fiber structure B for a coating tool in which the fibers (pile) constituting the standing fiber layer 4 are composed of only the heat-fusible crimped fibers 2. As long as the ratio of the fusible crimped fiber is 30% by mass or more, the fusible crimped fiber and other fibers may be used in combination.

In the fibrous structure B for a paint tool shown in FIG. 3, when a paint is applied to the surface of the fibrous structure B for a paint tool, fine paint particles are retained in a large number of pores 7 existing in the porous skin layer 4c. You. At the same time, the medium such as water passes through the pores 7 and quickly reaches the non-fused fiber layer 4d located inside the porous skin layer 4c, and is held by the non-fused fiber layer 4d. When a pressing force is applied to the coating tool fiber structure B during coating, the medium held in the non-fused fiber layer 4 d flows back to the porous skin layer 4 c side, and is held in the pores 7. The paint particles are carried to form a uniform coating film on the surface to be coated. The surface of the fiber structure B for a paint tool is a porous skin layer 4c.
Because of this point, a uniform coating film can be formed on the surface to be coated also by this point. Therefore, the fiber structure B for the coating tool is also the fiber structure A for the coating tool.
As with, it has excellent paint absorption (“contained”), paint outflow (“discharge”), and finish of the painted surface without causing dripping and uneven coating thickness. It can form a coating film with uniform finish and good finish, and is particularly effective as a coating surface material for painting tools such as paint rollers and iron brushes for applying low-viscosity paints such as photocatalytic paints. It is.

In the fiber structure B for a coating tool, as described above, the thickness of the porous skin layer on the surface is 100 to 100.
It needs to be 0 μm, and preferably 250 to 600 μm. The thickness of the porous skin layer is 100μ
When it is less than m, the flatness of the surface is lost, and it becomes difficult to form a coating film having a uniform thickness. On the other hand, when the thickness of the porous skin layer exceeds 1000 μm, the thickness of the non-fused fiber layer inside the porous skin layer is relatively reduced, so that the absorption performance of the paint is reduced, and dripping occurs. The coating film becomes uneven. Further, the porous skin layer of the fibrous structure B for a coating tool,
It is preferable to have about 2,000 to 5,000 fine holes per cm ² having pore diameters of about 5 to 90 μm open to the surface from the viewpoint of the absorption and outflow performance of the paint. Further, in the case of the fiber structure B for a paint tool, the height of the standing fiber layer including the porous skin layer is set to a thickness of 2 to 18 in view of the absorption performance of the paint, the outflow performance, the finish of the painted surface, and the like.
mm, more preferably 5 to 10 mm.

The fiber structure B for a coating tool of the present invention may be produced by any method as long as it has the above-mentioned structure. 3 crimped fibers
A fiber structure having an upright fiber layer composed of fibers containing 0 to 100% by mass on one surface of the ground structure, and a temperature not lower than the melting point of the heat-fusible crimped fiber from the surface side of the upright fiber layer. To heat-bond the heat-fusible crimped fibers on the surface,
It can be manufactured smoothly by a method of forming a porous skin layer having a thickness of 100 to 1000 μm on the surface of the standing fiber layer.

The fiber structure A for a paint tool or the fiber structure B for a paint tool of the present invention can be effectively used as a material for a paint tool such as a paint roller, a trowel brush or a paint brush. In the case of a paint roller, for example, the fiber structure A for a paint tool or the fiber structure B for a paint tool of the present invention
Is cut into strips, an adhesive is applied to the back surface, and spirally wound around a roller core and fixed, the fiber structure A for a coating tool or the fiber structure B for a coating tool of the present invention.
Can be manufactured by adopting a method of cutting into a rectangular shape, applying an adhesive to the back surface, winding and fixing the core material for a roller in a vertically long manner. In addition, the fiber structure A for a coating tool or the fiber structure B for a coating tool of the present invention can be applied to a flat plate-shaped object (a rectangular parallelepiped object) to produce a coating iron brush for coating. it can.
Furthermore, you may manufacture a brush-like coating tool using the fiber structure A for coating tools or the fiber structure B for coating tools of the present invention.

A paint tool such as a paint roller or a trowel brush manufactured using the fiber structure A for paint tool or the fiber structure B for paint tool has a paint absorption performance ("include") and a paint runoff performance (""). Spitting ”), with excellent finish performance on the painted surface, making use of such excellent properties, can be used for the coating of various paints. Among them, low-viscosity paints, especially low-viscosity photocatalysts using water as a medium It can be used very effectively for painting paints.

[0040]

EXAMPLES The present invention will be specifically described below with reference to examples and the like, but the present invention is not limited by the following examples.
In the following examples, the crimp elongation rate of the fiber (yarn) constituting the standing fiber layer of the fiber structure, the water retention capacity of the mesh fusion layer in the standing fiber layer, the content and discharge amount of the paint roller,
The hydrophilicity (wetting property) of the coated surface obtained by applying the photocatalytic paint using the coating tool manufactured in the following example, the photocatalytic performance (acetaldehyde decomposability) of the coated surface of the photocatalytic paint is measured or measured as follows. evaluated.

(1) Crimp elongation rate of fiber (yarn) constituting the standing fiber layer of the fibrous structure: 5500 dtex with a scalpel
After winding the thread until it becomes a mosquito, a load of 10 g is hung at the center of the lower end of the mosquito, and this mosquito is fixed at the upper part.
90 with a load of 0.009 cN / dtex applied
The heat treatment was performed at a temperature of ° C. for 30 minutes. Next, the fabric was allowed to dry at room temperature with no load, dried, and then subjected to a load of 10 g again and left to stand for 5 minutes. The yarn length was measured, and this was defined as L ₁ (mm). Next, a 1 kg load was applied, the yarn length after standing for 30 seconds was measured, and this was taken as L ₂ (mm), and the crimp elongation was determined by the following equation.

[0042]

[Formula 1] Crimp elongation rate (%) = {(L ₂ −L ₁ ) / L ₂ } × 100

(2) Water retention capacity of the mesh-like fusion layer in the standing fiber layer: After cutting the bulky layer on the surface side in the fiber layer of the standing fiber structure, the ground tissue is sliced off from the mesh-like fusion layer to remove it. , Is cut into predetermined dimensions (length and width) to form a test piece, and the dry mass of the test piece is measured.
₁ (g). Next, the test piece (reticulated fusion layer part)
Was immersed in water and allowed to stand for 3 minutes, then taken out and measured for its mass. This was defined as W ₂ (g), and the water retention capacity was determined by the following equation.

[0044]

[Number 2] water retention capacity (times) = W ₂ / W ₁

(3) Content and discharge amount of paint roller: (i) Content: The dry mass of the paint roller body (roller and handle) prepared in the following example was measured, and this was determined as (A) (g). ). Next, after the paint roller was saturated with water until it became saturated, the mass was measured again by squeezing lightly on a net until no dripping occurred, and this mass was measured as (B) (g). Content (C)
Ask for. (Ii) Discharge amount: A glass surface of 1 m ² is painted using a lightly wrung paint roller until no dripping occurs in the above (i), and the mass of the paint roller after the painting (D)
(G) is measured, and the discharge amount (E) is calculated by the following equation.
(G) was determined.

[0046]

## EQU00003 ## Content (C) (g) = (B)-(A) Discharge Amount (E) (g) = (C)-(D)

(4) Hydrophilicity (wetability) of the coated surface: Using a coating tool (paint roller or iron brush) prepared in the following example, a photocatalytic paint was applied to a glass plate (10 cm × 1).
(0 cm) and dried at 20 ° C. to form a photocatalytic paint layer having a thickness of about 2 μm. 1 ml of distilled water was dropped on the painted surface with a syringe, the degree of spreading was visually observed, and evaluated according to the following evaluation criteria. ：: The entire painted surface is almost wet, and water flows when the glass plate is tilted. Δ: Hemispherical water droplets adhered to the painted surface, and dropped when the glass plate was tilted. ×: Water droplets remain almost spherical and roll when the glass plate is tilted.

(5) Photocatalytic performance (acetaldehyde decomposition rate) of the coated surface: The same photocatalytic paint as used in (4) above was prepared by using a coating tool (paint roller or iron brush) prepared in the following example. Glass plate (10cm × 10c
m), and dried at 20 ° C. to a thickness of about 2 μm.
m of the photocatalytic paint layer was formed. Painted glass plate,
It is stored in a 5-liter Pyrex (registered trademark) transparent container with the painted surface facing up, and the initial concentration is 15 ppm.
Inject acetaldehyde so that
A black light (3.0 mW /
cm ² ) for 24 hours.
After 24 hours and 24 hours, the acetaldehyde concentration was measured, and the initial concentration of acetaldehyde (C ₀ ) (15
ppm) and the concentration (C ₁ ) (ppm) at the time of each measurement, the acetaldehyde decomposition rate was determined by the following equation and used as an index of photocatalytic performance.

[0049]

Acetaldehyde decomposition rate (%) = {(C ₀ −C ₁ ) / C ₀ } × 100}

Example 1 (1) Polyethylene terephthalate (intrinsic viscosity = 0.68 measured at 30 ° C. in a mixed solvent of phenol / tetrachloroethane and the like) having a core component of ethylene-vinyl alcohol copolymer [ Melt index (MI) measured at an ethylene content of 40 mol%, a temperature of 190 ° C., and a load of 2160 g = 10] was used as a sheath component, and composite spinning was performed at a ratio of core component: sheath component = 1: 1 (mass ratio). Then, it was drawn to produce a heat-fusible core-sheath composite spun multifilament yarn of 155 dtex / 48 filaments. (2) False twisting of the core-sheath composite spun multifilament yarn obtained in the above (1) at a false twist number of 2570 T / M, a first-stage heater temperature of 120 ° C., and a second-stage heater temperature of 135 ° C. Yarn was manufactured. The crimp elongation of the false twisted yarn thus obtained was measured by the method described above, and was found to be 17%.
Met. (3) Regular polyester false twisted yarn obtained by aligning three false twisted yarns (heat-fusible crimped fibers) having a crimp elongation rate of 17% obtained in (2) above as a pile yarn. (330dtex) as ground texture yarn, caliber 1
Using a 9-inch (48.3 cm), 16 gauge seal knitting machine, the ground structure is knitted, and at the same time, the standing fiber layer made of cut pile is formed on one surface of the ground structure by the above-mentioned pile yarn. After forming, a fibrous structure (sealed knitted fabric) having an overall thickness including the standing fiber layer of 10 mm (cut pile height of about 9 mm) and a basis weight of 530 g / m ² was produced.

(4) After scouring the seal knitted fabric obtained in the above (3), the back surface of the knitted fabric (the surface without cut pile)
With the water content up to 3
After spraying water in an amount of 0% by mass, it was placed in a drier as it was (with the back of the knitted fabric facing upward) and treated with hot air at 170 ° C. for 2 minutes. The resulting fiber structure had a ground structure thickness of 1 mm and an overall height of the standing fiber layer (pile layer) of 8 mm. In the standing fiber layer (pile layer), a net-like fusion layer formed by partial fusion of heat-fusible crimped fibers from the surface of the ground structure to a height of about 4 mm, and a thick layer on the surface (surface side). A bulky layer having a bulkiness of about 4 mm was formed, which corresponded to the fiber structure A for a coating tool of the present invention. (5) The water retention capacity of the mesh-like fused layer of the standing fiber layer in the fiber structure (fiber structure A for a coating tool) obtained in the above (4) was measured by the method described above. It was as shown.

(6) The fiber structure obtained in the above (4) (fiber structure A for a coating tool) is 2.5 cm wide and 35 c long.
m, cut into strips, coated with an adhesive on the back side, and made into a polypropylene core (length x outer diameter = 15 cm x
(1.7 cm) spirally wound around the surface and fixed,
A handle was attached to make a paint roller. The content and discharge amount of the paint roller thus obtained were measured by the methods described above, and were as shown in Table 1 below. (7) In addition, using the paint roller prepared in (6) above, the hydrophilicity (wetting property) and the photocatalytic performance (acetaldehyde decomposition rate) of the coated surface obtained by applying the photocatalytic paint by the above method were measured. Or, when evaluated, it was as shown in Table 1 below.

<< Comparative Example 1 >> (1) The heat-fusible core-sheath composite spun multifilament yarn produced in (1) of Example 1 was subjected to false twisting without being subjected to false twisting.
The entire yarn including the standing fiber layer including the standing fiber layer made of the cut pile on one side of the ground structure was used in the same manner as in Example 1 (3) except that the yarn was used as a pile yarn in the same manner as in Example 1. Has a thickness of 10 mm (cut pile height about 8 mm),
A fibrous structure (sealed knitted fabric) having a basis weight of 500 g / m ² was produced. The crimp elongation of the heat-fusible core-sheath composite spun multifilament yarn not subjected to crimping and used as the cut pile was 3% as low as measured by the method described above. (2) After scouring the seal knitted fabric obtained in the above (1), the back surface (the surface without cut pile) of the knitted fabric is turned upward, and the water content becomes 30% by mass from the back surface by a spray method. After spraying water in an amount, it was placed in a drier in the state as it was (with the back side of the knitted fabric facing upward) and subjected to hot air treatment at 170 ° C. for 2 minutes. The entire standing fiber layer is in a hardened state, and the cut pile constituting the standing fiber layer has no crimp and no contact between the fibers, so that the heat-fusible fiber (cut pile fiber) Neither the reticulated fusion layer nor the bulky bulky layer was formed by the partial fusion. (3) Using the fiber structure obtained in the above (2),
A paint roller was prepared in the same manner as in (6) of Example 1, and the content and discharge amount of the paint roller were measured by the above-described methods. The results were as shown in Table 1 below. (4) Further, using the paint roller prepared in (3) above, the hydrophilicity (wetting property) and the photocatalytic performance (acetaldehyde decomposition rate) of the coated surface obtained by applying the photocatalytic paint by the above method were measured. Or, when evaluated, it was as shown in Table 1 below.

<< Comparative Example 2 >> (1) The same heat-fusible core-sheath type composite spun multifilament yarn as produced in (1) of Example 1 was prepared with a false twist number of 25.
At 70 T / M, the first-stage heater temperature was set to 120 ° C., and the second-stage heater temperature was set to room temperature to perform false twisting to produce a false twisted yarn. The crimp elongation of the false twisted yarn thus obtained was measured by the method described above, and was a high value of 34%. (2) Three false-twisted yarns (heat-fusible crimped fibers) having a crimp elongation of 34% obtained in (1) above were aligned and used as a pile yarn. In the same manner as (3), a fiber structure (sealed knitted fabric) having an overall thickness including the standing fiber layer of 10 mm (cut pile height of about 9 mm) and a basis weight of 510 g / m ² was produced. (3) After scouring the seal knitted fabric obtained in the above (2), water was sprayed from the back surface of the seal knitted fabric by spraying in an amount to give a water content of 30% by mass in the same manner as in (4) of Example 1. After spraying, it was placed in a drier as it was (with the back of the knitted fabric facing upward) and subjected to hot air treatment at 170 ° C. for 2 minutes. The resulting fiber structure had a ground structure thickness of 1 mm and an overall height of the standing fiber layer (pile layer) of 7 mm. In the standing fiber layer (pile layer), a net-like fusion layer formed by partial fusion of the heat-fusible crimped fiber up to a height of about 4 mm from the surface of the ground structure is formed thereon (on the surface side).
A bulky bulky layer having a thickness of about 3 mm was formed. (4) The water retention capacity of the reticulated fused layer in the fiber structure obtained in the above (3) was measured by the method described above, and was as shown in Table 1 below. (5) Using the fiber structure obtained in (3) above,
A paint roller was prepared in the same manner as in (6) of Example 1, and the content and discharge amount of the paint roller were measured by the above-described methods. The results were as shown in Table 1 below. (6) Further, using the paint roller prepared in (5) above, the hydrophilicity (wettability) and the photocatalytic performance (acetaldehyde decomposition rate) of the coated surface obtained by applying the photocatalytic paint by the above method were measured. Or, when evaluated, it was as shown in Table 1 below.

<< Reference Examples 1 and 2 >> (1) A commercially available paint roller (“AOZOR” manufactured by Otsuka Brush Co., Ltd.) using a multi-layered polyester fabric.
A ") (Reference Example 1) and a commercially available paint roller (" B roller "manufactured by Otsuka Brush Co., Ltd .; pile height: 13 mm) using a high-pile knitted fabric (Pile height: 13 mm) (Reference Example 2). Was measured by the method described above, and was as shown in Table 1 below. (2) Further, using the two paint rollers of the above (1), a photocatalytic paint is applied by the above-described method, and the hydrophilicity (wetting property) and photocatalytic performance (acetaldehyde decomposition rate) of the coated surface obtained thereby are obtained. Was measured or evaluated by the method described above, and the result was as shown in Table 1 below.

[0056]

[Table 1]

From the results shown in Table 1, the fiber structure A for a coating tool of Example 1 had a crimp elongation ratio of 5 to 3 on one surface of the ground structure.
A standing fiber layer composed of fibers containing 0 to 100% by mass of heat-fusible crimped fibers, and the heat-fusible crimped fibers inside the standing fiber layer; The presence of a network fusion layer formed by partial fusion of the above, the presence of a bulky bulky layer on the surface side of the standing fiber layer outside the network fusion layer, the network fusion layer Indicates that the water retention ability is excellent. The paint roller made from the fibrous structure A for a coating tool of Example 1 has a moderately high content and discharge amount, has excellent paint absorption performance and discharge performance, and also has excellent properties such as photocatalytic paint. Such a low-viscosity coating material can be uniformly applied on the surface to be coated, whereby the coated surface exhibits a good photocatalytic action. Furthermore, the paint roller made from the fibrous structure A for a coating tool of Example 1 has a higher hydrophilicity (wetting property) on the painted surface formed by applying the photocatalytic paint than the commercially available paint rollers of Reference Examples 1 and 2. ) And photocatalytic performance (acetaldehyde decomposition rate)
Are higher, and the coating performance of the photocatalytic paint is superior to the paint rollers of Reference Examples 1 and 2.

On the other hand, the fiber structure of Comparative Example 1
Since the standing fiber layer is formed from the non-crimped heat fusible fiber having a crimp elongation of 3%, the reticular fiber layer and the bulky bulky layer are not formed in the standing fiber layer. And
Such a fibrous structure of Comparative Example 1 has a low water retention capacity, and a paint roller produced using the fibrous structure of Comparative Example 1 has extremely low content and discharge amounts.
Poor paint absorption and discharge performance. further,
A low-viscosity coating material such as a photocatalytic coating material cannot be uniformly applied to the surface to be coated, and the coated surface does not exhibit a photocatalytic action. In the fiber structure of Comparative Example 2, the standing fiber layer was formed from a heat-fusible crimped fiber having a crimp elongation of 34%. Although the prepared paint roller was higher in both the content and the discharge amount than in Example 1, the paintability of a low-viscosity paint such as a photocatalytic paint on the surface to be coated was not sufficient. In comparison, the photocatalytic action of the painted surface is low.

Example 2 (1) After the seal knitted fabric obtained in (3) of Example 1 was scoured, the surface of the standing fiber layer composed of the cut pile was lined with a calendar roller at 190 ° C. Pressure 50kg
The heat treatment was performed with a contact time of 5 seconds with a calendar roller while pressing at a pressure of / cm. In the fiber structure thus obtained, a porous skin layer having a thickness of 270 μm was formed near the surface of the standing fiber layer, which corresponded to the fiber structure B for a coating tool of the present invention. (2) When tap water at 20 ° C. was dropped on the surface of the porous skin layer of the fiber structure B for a coating tool obtained in the above (1) with a dropper, the tap water was instantaneously absorbed inside. (3) Fiber structure B for a coating tool obtained in (1) above
Is cut into a size of 15 cm × 10 cm, an adhesive is applied to the back side, and a length × width × thickness = 15 cm × 10 cm ×
It was adhered to a 0.7 cm polypropylene substrate to make a trowel brush. (4) The photocatalytic paint is applied by the above-mentioned method using the iron brush made in the above (3), and the hydrophilicity (wetting property) and the photocatalytic performance (acetaldehyde decomposition rate) of the obtained coated surface are determined. When measured or evaluated by the method described above, the results were as shown in Table 2 below.

<< Comparative Example 3 >> (1) The fiber structure (seal knitted fabric) obtained in (1) of Comparative Example 1 [Standing made of a cut pile with a crimp elongation of 3% that has not been crimped. After refining a sealed knitted fabric having a fiber layer on one side of the ground structure), the surface of the standing fiber layer made of the cut pile is pressed with a calendar roller at 190 ° C. at a linear pressure of 50 kg / cm while contacting with the calendar roller. Heat treatment was performed for a contact time of 5 seconds. When a photograph of the obtained fiber structure was taken with an electron microscope, a skin layer having a thickness of 500 μm was formed near the surface of the standing fiber layer. (2) When tap water at 20 ° C. was dropped with a dropper on the surface of the skin layer of the fibrous structure obtained in (1) above,
The result was not to be absorbed inside, but rather to repel water drops. From this point, the standing fiber layer (cut pile) of the fiber structure is a heat-fusible fiber having a crimp elongation of less than 5% (in Comparative Example 3, the crimp elongation is 3% and is not crimped). It can be seen that when formed from (heat fusibility), a skin layer having no voids when the surface of the standing fiber layer is heat-fused. (3) The fibrous structure obtained in the above (1) is 15 cm ×
It was cut to a size of 10 cm, and a trowel brush was prepared in the same manner as in Example 2, (3). (4) The photocatalytic paint is applied by the above-mentioned method using the iron brush made in the above (3), and the hydrophilicity (wetting property) and the photocatalytic performance (acetaldehyde decomposition rate) of the obtained coated surface are determined. When measured or evaluated by the method described above, the results were as shown in Table 2 below.

[0061]

[Table 2]

As can be seen from the results in Table 2 above, one side of the ground structure is composed of fibers containing 30 to 100% by mass of heat-fusible crimped fibers having a crimp elongation of 5 to 30%. The fiber structure for a coating tool according to the present invention, comprising a standing fiber layer, and a porous skin layer having a thickness of 100 to 1000 μm formed by fusing heat-fusible crimped fibers on the surface of the standing fiber layer. Body B has excellent paint absorption performance. A coating tool such as a trowel brush manufactured using the coating tool fiber structure B can uniformly apply a low-viscosity coating such as a photocatalytic coating to a surface to be coated, thereby providing a good coating surface. Exhibits photocatalysis.

[0063]

The fiber structure A for a coating tool of the present invention is a fiber comprising a heat-fusible crimped fiber having a crimp elongation rate of 5 to 30% on one side of the ground structure in a proportion of 30 to 100% by mass. And a reticulated fusible layer formed by partial fusion of the heat-fusible crimped fibers is present inside the erected fibrous layer. It has a specific structure in which a bulky bulky layer exists on the surface side of the standing fiber layer outside the landing layer. Therefore, in the coating tool fiber structure A of the present invention and a coating tool such as a paint roller or a trowel brush made using the same, the mesh-like fusion layer can sufficiently hold the paint, and the paint absorption performance And excellent holding performance. And a large amount of paint can be held in the mesh fusion layer, and since a bulky bulky layer is present on the upper part of the mesh fusion layer, the paint outflow performance and coating performance are also excellent, A coating film having a uniform thickness and a good finish can be smoothly formed without causing dripping and unevenness of the coating film thickness. Moreover, in the mesh fusion layer, since it has good elasticity due to the partial fusion of the heat-fusible crimped fiber, it is easy to control the pressing force applied to the painting tool during painting, A uniform coating having a uniform thickness can be formed. And, by the production method of the present invention, the fiber structure A for a coating tool having the above-described excellent characteristics can be produced smoothly.

Further, the fiber structure B for a coating tool of the present invention
Has a standing fiber layer composed of fibers containing 30 to 100% by mass of heat-fusible crimped fibers having a crimp elongation of 5 to 30% on one surface of the ground structure. Thickness due to fusion of heat-fusible crimped fibers constituting the standing fiber layer on the surface of the fiber layer 1
There is a porous skin layer of 100-1000 μm. And in the coating tool such as the paint tool fiber structure B and a paint roller or a trowel brush made using the same, the coating fine particles are uniformly held in a large number of pores existing in the porous skin layer, On the other hand, since the solvent such as water is well retained in the inner crimped fiber layer through the porous skin layer,
The fiber structure B for a paint tool of the present invention and the paint tool using the same have excellent paint retention ability. Moreover, when the fiber structure B for a coating tool is pressed at the time of coating, the solvent held in the crimped fiber layer located inside the standing fiber layer flows back to the surface, and the surface of the porous skin layer Since the paint fine particles held in the holes are conveyed to the surface to be coated, the paint discharge performance is excellent, so that a uniform and finished coating film having a good finish can be formed on the surface to be coated. Such a fiber structure B for a coating tool of the present invention can be manufactured smoothly by the manufacturing method of the present invention.

[Brief description of the drawings]

FIG. 1 is a schematic view (cross-sectional view) showing an example of a fiber structure A for a coating tool of the present invention.

FIG. 2 is a schematic view (cross-sectional view) showing another example of the fiber structure A for a coating tool of the present invention.

FIG. 3 is a schematic view (cross-sectional view) showing an example of a fiber structure B for a coating tool of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Ground structure 2 Heat-fusible crimped fiber which comprises a pile 3 Other fiber which comprises a pile 4 Standing fiber layer 4a comprised of a pile 4a Reticulated fusion layer 4b which exists inside the standing fiber layer 4 4b Reticulated Bulky layer 4c porous skin layer 4d non-fused fiber layer 5 fusion-bonded portion of heat-fusible crimped fiber 2 6 heat-fusible winding outside of fusion layer 4a on surface of standing fiber layer 4 Fused portion of compressed fiber 2 7 Void portion

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshiro Yamaguchi 1-12-39 Umeda, Kita-ku, Osaka-shi, Osaka Inside Kuraray Co., Ltd. In Textile Co., Ltd. (72) Inventor Hiroyuki Kanno 4-1-1 Yotsuya, Shinjuku-ku, Tokyo Otsuka Brush Co., Ltd.F-term (reference) BA05 BA09 BB09 CA08 CA14 CB02 CB07 CC16

Claims (10)

[Claims] An erect fiber layer having a standing fiber layer on one side of a ground structure, wherein the elongating fiber layer contains heat-fusible crimped fibers having a crimp elongation of 5 to 30% in a proportion of 30 to 100% by mass. The standing fiber layer has an inner portion forming a net-like fusion layer formed by partial fusion of the heat-fusible crimped fibers, and an upper portion of the upper portion of the net-like fusion layer. A fibrous structure for a coating tool, wherein an outer portion forms a bulky bulky layer. 2. The height of the standing fiber layer is 3 to 20 mm, and the ratio of [thickness of the mesh fusion layer]: [thickness of the bulky layer] is 9: 1 to 1: 9. 2. The fiber structure for a coating tool according to 1. 3. The fiber structure for a coating tool according to claim 1, wherein the water retentivity of the reticulated fusion layer is 4 to 16 times the mass of the fibers forming the reticulated fusion layer. 4. A standing fiber layer on one side of the ground structure, wherein the standing fiber layer contains heat-fusible crimped fibers having a crimp elongation of 5 to 30% at a ratio of 30 to 100% by mass. And the surface portion of the standing fiber layer has a thickness of 100 to 100 due to fusion of the heat-fusible crimped fibers constituting the standing fiber layer.
A fibrous structure for a coating tool, comprising a 0 μm porous skin layer. 5. The fiber structure for a coating tool according to claim 4, wherein the height of the standing fiber layer including the porous skin layer is 2 to 18 mm. 6. A composite spinning wherein the heat-fusible crimped fiber constituting the standing fiber layer comprises a low-melting polymer and a fiber-forming polymer, and the low-melting polymer is present on at least a part of the fiber surface. The fibrous structure for a coating tool according to any one of claims 1 to 5, wherein the fibrous structure is a crimped fiber comprising a fiber and / or a mixed spun fiber. 7. A paint roller or trowel brush, wherein the fiber structure for a coating tool according to any one of claims 1 to 6 is attached to a substrate as a coating surface. 8. The paint roller or trowel brush according to claim 7, which is used for applying a photocatalytic paint. 9. A fiber structure having an upright fiber layer formed on one side of a ground structure, comprising a fiber containing 30 to 100% by mass of heat-fusible crimped fibers having a crimp elongation of 5 to 30%. After spraying water from the other surface of the body with the other surface having no standing fiber layer facing upward, the [melting point of the heat-fusible crimped fiber− The heat-sealing crimped fiber is partially fused inside the standing fiber layer by a heat treatment at a temperature of not less than 50 (° C.) to form a reticulated fusion layer. A method for producing a fiber structure for a paint tool. 10. A fiber structure having an upright fiber layer formed on one side of a ground structure, comprising a fiber containing 30 to 100% by mass of heat-fusible crimped fibers having a crimp elongation of 5 to 30%. The body is subjected to thermocompression bonding from the surface side of the standing fiber layer at a temperature equal to or higher than the melting point of the heat-fusible crimped fiber to fuse the heat-fusible crimped fiber on the surface portion, and the surface of the standing fiber layer 100 to 1000 thickness
The method for producing a fibrous structure for a coating tool according to claim 4, wherein a porous skin layer having a thickness of μm is formed.