JP6231273B2 - Tubular body with decorative layer - Google Patents

Description

  The present invention relates to a tubular body having a decorative layer on its surface.

  Various decorations are applied to various products on the market. Such decoration may be made by printing a decoration layer on the surface of a product by, for example, inkjet (see, for example, Patent Document 1). For example, in a fishing rod, which is one of the products on the market, a decorative layer is applied to the surface by ink jet printing so as to respond to various user preferences or to encourage purchases. There are some (see, for example, Patent Document 2).

JP 2001-310454 A JP 2008-206415 A

  By the way, the above-described ink jet printing is one of the printing methods of a printer, in which liquid ink particles are blown to draw dots on a printing substrate, and characters and figures are printed by the gathering. As in an ink jet printer as disclosed in No. 1, printing in which ink ejected from ink nozzles adheres to a printing substrate and at the same time, ultraviolet rays are irradiated from an irradiation unit and ink adhered to the printing substrate is immediately cured. In the form, one problem arises when the decorative layer is printed in such a printed form, particularly on a tubular body such as a fishing rod.

  That is, in a coating method using a resin composition that can be cured by irradiation with active energy rays such as ultraviolet rays, in recent years, curing by irradiation with active energy rays is accompanied by shrinkage, and the cured product is warped or cracked. When a decorative layer is applied with an active energy ray-curable ink on a tubular body, particularly a product in which a long tubular body such as a fishing rod is frequently subjected to a bending force, an external force such as bending is applied. May cause peeling or breakage of the decorative layer. When a decorative layer is partially formed over the circumferential direction on a part of the surface of a fishing rod as a tubular body as disclosed in Patent Document 2, such a decorative layer easily follows the bending of the fishing rod. Therefore, the decorative layer is unlikely to be peeled off or damaged, but when the decorative layer is formed over a half circumference (for example, over the entire circumference) of the tubular body, internal stress due to shrinkage or the like in the active energy ray hardening of the surface of the tubular body. And the decorative layer is easily peeled off or damaged by bending or the like.

  The present invention has been made paying attention to the above-described problems, and an object of the present invention is to provide a tubular body in which the decorative layer is not easily damaged even when the decorative layer is formed over a half circumference with the active energy ray-curable ink. .

In order to achieve the above-described object, the tubular body of the present invention includes a tubular material main body and a colored layer formed by active energy ray-curable ink over a half or more of the material main body at a predetermined site on the surface of the material main body. The colored layer has a cutout portion that cuts out at least a portion of the colored layer, and the cutout portion is located at a position where the colored layer does not reach the half circumference of the material body. The colored layer is partially divided so as to release internal stress associated with curing by irradiation with active energy rays, and the cutout portion includes a plurality of axial cutout portions extending substantially in the axial direction of the material body, It said axial notch portion is characterized Rukoto provided axially offset from each other at different circumferential positions.

  According to the tubular body having the above-described configuration, the colored layer formed with the active energy ray-curable ink is cut at a position that does not reach the half circumference of the material body, even though it is formed over the circumference of the material body. Since it is partly divided by the notch, the internal stress associated with hardening by irradiation with active energy rays can be effectively released by the notch and can be diverged and reduced. Even if added, it is hard to break (for example, it is hard to produce a crack). This is particularly beneficial in tubular products such as fishing rods that are frequently subjected to bending forces. Moreover, according to the tubular body having the above-described configuration, since the colored layer is formed over a half circumference of the material main body, the appearance and visibility can be improved.

  In the above configuration, the active energy ray is a general term for an electron beam, an X-ray, an ultraviolet ray, an electron beam having a high energy such as visible light in a low wavelength region, or an electromagnetic wave, and the simplicity and spread of an irradiation apparatus that can be normally used. In view of the above, ultraviolet rays are preferable. However, the type of active energy rays and the ink to be cured thereby are not particularly limited.

  In the above configuration, the “notch portion” refers to a concave region or a lack region on the surface of the colored layer formed by notching at least a part of the colored layer. Moreover, the said notch part may consist of a colored layer thinner than the thickness of another colored layer site | part. In other words, the partial division of the colored layer in the present invention means that the colored layer is divided only at a part of the entire extension area, and the colored layer partially remains at the divided part (the colored layer is Not completely removed). If the cutout portion is made of a colored layer that is thinner than the thickness of the other colored layer portion, the cutout portion can have a decorative effect, which is beneficial.

Further, the configuration smell Te, each other Inijiku in the axial direction notch portions and adjacent direction, its axial ends, to each other over a predetermined length in a state in which a predetermined interval in the circumferential direction axis The axial cutout portions adjacent to each other in the axial direction may be overlapped with each other in the axial direction, and the end positions in the axial direction may be the same in the axial direction with a predetermined interval in the circumferential direction. You may do it. If the plurality of axial cutout portions extend over the entire length in the axial direction, the colored layer can be prevented from being damaged over the entire decorative layer, which is beneficial.

  According to the tubular body of the present invention, since the colored layer is partially divided by the cutout portion at a position that does not reach the half circumference of the material body, the decorative energy layer (colored layer) is half-circulated by the active energy ray-curable ink. Even if it forms over the above, the internal stress accompanying the hardening by active energy ray irradiation can be effectively released by the notch, and the decorative layer is hardly damaged.

It is a side view of a fishing rod as an example of the tubular body of the present invention. It is a fragmentary perspective view which shows the example of the decoration layer given to the surface of the rod of the fishing rod of FIG. It is a fragmentary sectional view of the collar of FIG. 2 provided with a decoration layer. 2A is a cross-sectional view taken along line AA in FIG. 2 (cross section passing through the center of the lattice portion of the lattice pattern), and FIG. 2B is a cross-sectional view taken along line BB in FIG. It is a cross section along the connection part of the corner | angular part. It is sectional drawing which follows the CC line of FIG. FIG. 6 is a development view of a colored layer portion in FIG. 5. It is sectional drawing which follows the DD line | wire of FIG. It is sectional drawing which concerns on the modification of FIG.

  Hereinafter, an embodiment of a tubular body including a decorative layer according to the present invention will be described with reference to the drawings.

  FIG. 1 shows a fishing rod 1 as an example of the tubular body of the present invention. As shown in the figure, this fishing rod 1 includes a plurality of rods as a tubular body, specifically, a main rod 3 having a grip 3a, a first middle rod 5, a second middle rod 7, and a fishing line fastener. It is comprised by the tip 9 which has 9a. In this case, each of the scissors 3, 5, and 7 is configured as a swing-out type or a splicing type, and the scissors main body (the material main body 20; see FIG. 3) constituting each of the scissors 3, 5, and 7 is reinforced. It is formed by winding a fiber reinforced prepreg in which a fiber is impregnated with a synthetic resin (may be formed of a metal such as steel), and a decorative portion A is formed on each of the collars 3, 5 and 7.

  The decorative portion A is formed by inkjet, and has a continuous pattern A1 (a thin colored layer 32A and a thick colored layer 32B) extending over at least a half circumference in the circumferential direction of the ridges 3, 5, and 7 (the entire circumference in the present embodiment). A line pattern A2 (line pattern extending in the circumferential direction of the cross section), A3 (diagonal) extending linearly over at least half of the circumferential direction of the flanges 3, 5, and 7 (all the circumference in this embodiment); Line pattern extending in the circumferential direction), lattice pattern A4 extending over at least half of the circumferential direction of ridges 3, 5, and 7 (the entire circumference in this embodiment), and ridges 3, 5, 7 includes a blurring pattern A5 extending over at least a half circumference in the circumferential direction. Here, the blurring pattern A5 refers to, for example, a blurring portion A5 ′ (for example, linearly extending in the axial direction and having a predetermined width in the circumferential direction) formed of a region where the ink density is thinner than other portions. It is a pattern having an interval, and the density of the blurring portion A5 ′ may change stepwise, for example, along the circumferential direction or the axial direction. Alternatively, the blur portion A5 'may be one in which the composition of the ink color gradually changes.

  Further, as shown in FIG. 3, the decorative portion A (A1, A2, A3, A4, A5) is formed on a predetermined portion of the surface of the material main body 20 constituting each of the collars 3, 5, and 7. A decorative layer 50. Specifically, the decoration layer 50 includes a first base layer (for example, a thickness of 5 to 20 μm) 30 formed on the material body 20 and a second base layer formed on the first base layer 30. A ground layer 31 (for example, a thickness of 5 to 20 μm), a colored layer 32 (for example, a thickness of 10 to 60 μm) formed on the second underlayer 31, and a transparent layer formed on the colored layer 32 It is configured by laminating a protective layer 33 (for example, a thickness of 15 to 25 μm).

  The first underlayer 30 is provided to smooth the outer surface of the material body 20, and is made of, for example, a synthetic resin such as epoxy, urethane, acrylic, acrylic silicon, or silicon, and is sprayed or squeezed. It is formed by various coating methods such as brush coating. The first underlayer 30 may be colored by mixing a pigment or the like.

  The second base layer 31 is intended to adjust the concealment of the base, the brightness and color tone of the colored layer 32, and is composed of a light reflection layer and a white layer. The light reflecting layer is made of a glittering material, for example, a predetermined synthetic resin (acrylic resin, epoxy resin, vinyl resin, etc.) and a plurality of particles having glitter (hereinafter referred to as glitter particles). It can be formed by painting a desired density and uniformly mixed.

  The glitter particles mixed in the predetermined synthetic resin have glitter and various colors such as Al, Cu, Ag, Mg, In, Cr, Si, Ni, Ti, Au, Rh, and Pt. Metal materials can be used. In this case, the size of each particle is set to 2 μm or less, preferably 0.3 μm to 1 μm, and the thickness is set to 1 μm or less, preferably 0.03 μm to 0.5 μm. Good to do. That is, if the size and thickness of the particle body are set outside this range, the glitter particles cannot be uniformly arranged in the synthetic resin at a desired density and the boundaries of the glitter particles become conspicuous. This is because the light reflection direction is not constant, and a uniform glossy appearance cannot be exhibited.

For example, such a glittering particle is formed by depositing or sputtering the metal material on a film-like support substrate made of Teflon (registered trademark), silicon resin, or the like, and then forming the metal layer. It can be formed by peeling the layer from the support substrate and crushing. It is preferable that the plurality of glittering particles formed in this way are uniformly arranged at such a density as to sufficiently exhibit the glitter and produce a desired color. Specifically, the density of the glitter particles mixed in the synthetic resin is preferably set so that the number of glitter particles per unit area is 50,000 to 20 million / mm ² . According to the light reflection layer formed in this way, it is possible to present a glittering appearance that is uniform and colored in a desired color.

  In addition to the configuration described above, the light reflecting layer may be, for example, a single piece of metal such as gold, silver, copper, aluminum, chromium, cobalt, nickel, iron, or zinc, or particles such as pigment, or these. Arbitrary combinations can be formed by mixing this with a small amount of synthetic resin, diluting with a large amount of solvent, spraying this with gun spray coating, etc., and then removing (volatilizing) the solvent. Various appearances can be formed by changing the size and combination of particles such as metal pieces and pigments.

Alternatively, in addition to the configuration described above, the light reflecting layer may be made of metal such as Cr, Ni, Ti, Al, Ag, and Be, alloys such as TiN, TiCN, CrN, and Fe—Cr—Ni, TiO ₂ , SiC, and the like. These ceramics can be formed as a main material, and this can also improve the appearance. Such a light reflection layer using metal or ceramics can be formed using physical plating such as ion plating, sputtering, or vapor deposition, dry plating such as chemical vapor deposition, vacuum vapor deposition, or wet plating. It is. The white layer may be formed by painting a predetermined synthetic resin, but may be formed by inkjet. In this case, it is preferable to conceal the base so that the brightness of the colored layer can be easily adjusted.

  The colored layer 32 formed on the second base layer 31 has, for example, optical transparency, and is formed of active energy ray-curable ink over a half circumference of the material body 20. The material constituting the colored layer 32 is formed, for example, by adding a curing agent to a main material mixed with a transparent or translucent synthetic resin such as an epoxy or urethane with a coloring material such as a pigment or a dye. In this embodiment, an ultraviolet curable ink that is cured by irradiation with ultraviolet rays that are curing light rays (active energy rays) is used. Acrylic or epoxy cation type inks are used for the photocurable ink, and in particular, UV-curable inks are those in which a sensitizer is blended with a polyfunctional monomer and an acrylate oligomer. In such an ink, it is utilized that a sensitizer forms a radical and causes a chain reaction of an oligomer and a monomer. The ink may be a thermosetting type, a solvent (water, organic material) drying type, a two-component reaction type, or the like.

The protective layer 33 formed on the colored layer 32 is formed of a transparent or translucent synthetic resin such as epoxy, urethane, acrylic, or acrylic silicon.

  FIG. 4 shows a cross section of a lattice pattern A4 (see FIG. 2) as an example of the decorative portion A. Here, FIG. 4A is a cross-sectional view taken along the line AA in FIG. 2, and is a cross section passing through the center of the lattice portion (colored layer portion 32x described later) of the lattice pattern. 4B is a cross-sectional view taken along the line B-B in FIG. 2, and is along the connecting portion of the corner portion 70 (see also FIG. 2) of the lattice portion (colored layer portion 32 x described later) (colored layer). It is a cross section along the circumferential edge of the portion 32x.

  The colored layer 32 constituting the decorative layer 50 (see FIG. 3) of the lattice pattern A4 formed over the entire circumference of the ridges 3, 5, and 7 (the material body 20) has a rectangular colored layer portion 32x and a colored layer 32. Are formed by alternately arranging the rectangular cutout portions 60 from which the cutout portions 60 are removed (notched) in the axial direction and the circumferential direction (see FIG. 2). It is partially divided by the notch 60 at a position that does not reach the half circumference. In this case, the corner 70 of each colored layer portion 32x is connected (joined) to the corner 70 of the adjacent adjacent colored layer portion 32x. As shown in FIG. 4B, the colored layer 32 is continuous along the circumferential side edge without being divided over the entire circumference.

  5 and 6 show a cross section of a blur pattern A5 (see FIG. 2) as an example of the decorative portion A. Here, FIG. 5 is a sectional view taken along the line CC of FIG. 2, and FIG. 6 is a development view of the colored layer portion of FIG.

  As shown in the figure, the colored layer 32 of this blurred pattern A5 formed over half a circumference of the ridges 3, 5, and 7 (material body 20) is also in a position where the colored layer 32 does not reach the half circumference of the material body 20. It has a notch 62 that partially divides the colored layer 32. That is, as shown in FIG. 5, the colored layer 32 extends over more than half a circumference of the material body 20 from the circumferential one end 32a to the other circumferential end 32b, but the circumferential one end 32a. A notch 62 is provided at a position that does not reach the half circumference of the material body 20 from any of the other circumferential end portions 32b.

  Further, the notch 62 in the colored layer 32 of the blur pattern A5 is composed of a plurality of axial notches 62A extending in the axial direction X of the material body 20, as clearly shown in FIG. 6 (FIG. 2). . Further, as shown in the drawing, the plurality of axial cutout portions 62A are provided so as to be shifted from each other in the axial direction X at different circumferential direction Y positions. Specifically, the axial cutout portions 62A adjacent to each other in the axial direction X have a predetermined length L in a state where the end portions 62 ′ in the axial direction X are spaced apart from each other in the circumferential direction Y. Overlap each other in the axial direction X. Alternatively, a part or all of the plurality of axial cutout portions 62A may be configured such that axial cutout portions 62A adjacent to each other in the axial direction X are spaced apart from each other by a predetermined interval in the circumferential direction between the axial end positions 62a. In this state, they may coincide with each other in the axial direction. In any case, in the colored layer 32 of the blurred pattern A5, the plurality of axial cutout portions 62A as a whole extends over the entire length in the axial direction X (covers the entire length in the axial direction).

  Each axial cutout portion 62A extends straight in the axial direction along the longitudinal center axis of the material body 20 in this embodiment, but has a predetermined angle with respect to the longitudinal center axis of the material body 20. And may extend diagonally. In the present specification, the “substantially axial direction” should be interpreted as such.

  7 (a cross-sectional view taken along the line DD in FIG. 2) shows a cross section of a continuous pattern A1 (see FIG. 2) as an example of the decorative portion A. As shown in the figure, the colored layer 32 (32A, 32B) of the continuous pattern A1 formed over the entire circumference of the ridges 3, 5, and 7 (material body 20) is also arranged on the half circumference of the material body 20. It has a notch 64 that partially divides the colored layer 32 at a position that does not reach. In this case, the notch 64 is formed of a colored layer 32A that is thinner than the thickness of the other colored layer portion 32B. That is, the colored layer 32 of the continuous pattern A1 is composed of a colored layer 32A having a small thickness and a colored layer 32B having a large thickness, and the thin colored layer 32A has a thick colored layer 32B on a half circumference of the material body 20. It functions as a notch 64 that is partially divided at a position that does not reach the end. In the continuous pattern A1, the thin colored layer 32A may form a pattern such as a character, a figure, or a picture.

  As described above, in the fishing rod 1 as a tubular body of the present embodiment, the colored layer 32 of the decorative portion A formed by the active energy ray-curable ink is formed over more than half a circumference of the material body 20. Regardless, since the cut-out portions 60, 62, 64 are partially divided at positions that do not reach half the circumference of the material body 20, the internal stress associated with curing by irradiation with active energy rays is cut out. 64, and can diverge and reduce effectively. Therefore, (part of the colored layer 32 is continuous for more than half a circumference (for example, the connection of the corner portions 70 of the lattice pattern A4 shown in FIG. 4) Even if there is a portion (see FIG. 4B)), even if an external force such as bending is applied to the material body 20, it is difficult to break (for example, a crack occurs). Stomach).

  The present invention is not limited to the above-described embodiments, and can be implemented with various modifications without departing from the scope of the invention. For example, in the embodiment described above, a fishing rod is shown as a tubular body, but the present invention can be applied to various tubular products (tubular bodies). Moreover, it is also possible to combine arbitrarily the structure of the above-mentioned three decoration parts (FIG. 4; FIG.5, 6; FIG.7). For example, the notches 60 of the lattice pattern A4 shown in FIG. 4 may be formed by the thin layer 32A of the continuous pattern A1 shown in FIG.

Moreover, the structure of the colored layer 32 (32A, 32B) in FIG. 7 can be modified as shown in FIG. That is, in the colored layer of FIG. 8, the arrangement of the thin colored layer 32A and the thick colored layer 32B is opposite to that in FIG. 7, and corresponds to the notch 64 of the thin colored layer 32A extending over a half circumference. A thick colored layer 32 </ b> B is provided (over a half circumference or less of the material main body 20) at the position where it is to be performed. Here, the thick colored layers 32B, since the portion protruding from the cutout portion 64 of the thin colored layer 32A in the radial direction is not restrained by a thin colored layer 32A, the ultraviolet-curing the protruding portion is deformed in the circumferential direction The accompanying stress can be released. In the configuration of FIG. 8, a cutout portion 60 that divides the thin colored layer 32 </ b> A at a position that does not reach the half circumference of the material main body 20 may be provided, but such a cutout portion 60 may not be provided. Also good.

  In the above-described embodiment, ultraviolet rays are used as active energy rays for curing the ink of the colored layer. However, other rays such as an electron beam, an X-ray, a high-energy electron beam such as visible light in a low wavelength region, or an electromagnetic wave are used. Active energy rays may be used. In addition, the active energy ray-curable resin composition as the ink constituting the colored layer can be applied to the surface of various base materials, such as paper, hard and flexible plastics, metal substrates, cement, glass. It can be applied on a wide range of substrates including stone, ceramic, wood and others.

1 Fishing rod (tubular body)
3, 5, 7 竿 杆 20 Material body 32 Colored layer 32A Thin colored layer 32B Thick colored layer 50 Decorative layers 60, 62, 64 Notch 62A Axial notch

Claims (7)

A tubular material body, and a decorative layer having a colored layer formed with an active energy ray-curable ink over a half circumference of the material body at a predetermined site on the surface of the material body,
The colored layer has a cutout portion that cuts out at least a part of the colored layer, and the cutout portion is accompanied by curing by irradiation with active energy rays at a position where the colored layer does not reach the half circumference of the material body. Partially dividing the colored layer to release internal stress ,
The notch includes a plurality of consists axial cutaway portion, a plurality of the axial notch portion extending substantially in the axial direction of the tubular body is that provided axially offset from each other at different circumferential positions from each other A tubular body characterized by that. The axial cutout portions adjacent to each other in the axial direction are characterized in that axial ends thereof overlap each other in the axial direction over a predetermined length with a predetermined interval in the circumferential direction. The tubular body according to claim 1 . The axial notches that are adjacent to each other in the axial direction have axial end positions that coincide with each other in the axial direction at a predetermined interval in the circumferential direction. The tubular body according to 1 . The tubular body according to any one of claims 1 to 3 , wherein a plurality of the axial cutout portions extend over the entire length in the axial direction as a whole. The tubular body according to any one of claims 1 to 4, wherein the notch is formed of a colored layer that is thinner than a thickness of another colored layer portion. The tubular body according to any one of claims 1 to 5 , wherein the colored layer is formed over the entire circumference of the material body. The tubular body according to any one of claims 1 to 6 , wherein the material body is a fishing rod.

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