Summary of the invention
In view of the afore-mentioned embodiment of the present invention, the present invention has provides a kind of purpose that applies the article of magnetic material, and said article can contain coating material and the more three-dimensional and display pattern more brightly of magnetic flakes through use.
The method of dealing with problems
In order to realize above purpose; According to the present invention, a kind of article that apply magnetic material, the article of said coating magnetic material comprise that sheet-type applies target item (1) and coated film (15); Said coating target item has upper surface (1A) and lower surface (1B); Said coated film is coated on the said upper surface (1A) of said coating target item, and said coated film comprises magnetic flakes (17), and said magnetic flakes is used for changing light reflectivity or light reflection direction to show space pattern according to its direction; Said space pattern comprises: at least two protruding strip pattern parts (R1); In said at least two protruding strip pattern parts, said magnetic flakes is oriented in the said coated film along predetermined direction, and makes said protruding strip pattern part look the similar projections bar; Slant pattern part (R3); Said slant pattern part (R3) is arranged in the gap area (G) between the said protruding strip pattern part with adjacent with said protruding strip pattern part; And in said slant pattern part (R3); Said magnetic flakes is orientated the direction state of the said magnetic flakes from said protruding strip pattern part (R1) along further downward-sloping towards the direction at the center of said gap area (LC), makes said slant pattern partly look darker than said protruding strip pattern color; And recessed strip pattern part (R4); The female strip pattern partly is arranged on the boundary between the said slant pattern part; And change in the direction of magnetic flakes described in the female strip pattern part and to make the rate of change at inclination angle of the said magnetic flakes in the female strip pattern part (R4), make the female strip pattern part (R4) look similar recessed greater than the rate of change at the inclination angle of the said magnetic flakes in said slant pattern part (R3).
In the article of above-mentioned coating magnetic material; Represent said magnetic flakes apart from the distance of the center (LC) between the said protruding strip pattern part (R1) and axis of ordinates when representing the inclination angle of said magnetic flakes when axis of abscissas, said inclination angle has local maximum and local minimum in said slant pattern part (R3).
In the article of above-mentioned coating magnetic material, the inclination angle of said magnetic flakes has a local maximum and a local minimum in said gap area (G).
In the article of above-mentioned coating magnetic material, the absolute value of each in said local maximum and the said local minimum with respect to the said upper surface (1A) of said coating target item (1) in 50 ° to 70 ° scope.
In the article of above-mentioned coating magnetic material; The inclination angle of the said magnetic flakes in the female strip pattern comprises 0 °, and the rate of change at the inclination angle of said magnetic flakes on average equals 10 °/mm or bigger in the zone that comprises with the 5mm width of 0 ° of corresponding position.
In the article of above-mentioned coating magnetic material, said protruding strip pattern part is arranged as each other to be opened to the intervals of 40mm with 20mm.
In the article of above-mentioned coating magnetic material; Through showing said space pattern with near the magnetic field the said upper surface that is created in said coating target item with the direction of regulating said magnetic flakes on the rear side that magnet (3) is arranged in said coating target item (1); Said protruding strip pattern part (R1) forms along the profile of first magnet (5) and the profile of second magnet (7); Wherein said first magnet (5) is arranged so that its N-pole-face is to this side of said coating target item (1); Said second magnet (7) is set to said first magnet (5) spaced apart with certain spacing; Make its S-pole-face to this side of said coating target item (1), and said gap area (G) is corresponding to the gap between said first magnet (5) and said second magnet (7).
In the article of above-mentioned coating magnetic material; When axis of abscissas is represented the position and axis of ordinates when representing the inclination angle; Obtain local maximum or local minimum in the zone of each in said slant pattern part; And in the zone that obtains said local maximum or said local minimum, equal 1mT or bigger in the magnetic flux density of the said near surface of said coating target item.
In the article of above-mentioned coating magnetic material, it is narrower or thin than another magnet that in said first magnet (5) and said second magnet (7) one is configured to, thereby the female strip pattern part (R4) is offseted to one side.
In the article of above-mentioned coating magnetic material, in said first magnet (5) and said second magnet (7) one be configured on the magnetic force than another magnet a little less than, thereby the female strip pattern part (R4) is offseted to one side.
In the article of above-mentioned coating magnetic material, said predetermined direction is arranged essentially parallel to the said upper surface (1A) of said coating target item (1).
According to the present invention, be that three-dimensional said space pattern has through the direction that changes said magnetic flakes: at least two protruding strip pattern parts, said at least two protruding strip pattern parts look similar projections bar (and can be substantially parallel to each other); At least two slant pattern parts; Said at least two slant patterns part is in the said gap area that is clipped between the said protruding strip pattern part, and is adjacent with corresponding protruding strip pattern part respectively and look darker than said protruding strip pattern part color; And recessed strip pattern part, the female strip pattern partly is arranged between the said slant pattern part and looks similar recessed.Thus; At said protruding strip pattern part (for example; Said two protruding strip pattern parts) can form between and look the space pattern of similar V-arrangement mountain valley shape part, and can show more three-dimensional pattern through the coating material that use contain said magnetic flakes.
If being adjusted to, the direction of said magnetic flakes makes at a coordinate system (in this coordinate system; Axis of abscissas is represented the distance of said magnetic flakes apart from the center of said protruding strip pattern part; And axis of ordinates is represented the inclination angle of said magnetic flakes) in each position in said slant pattern part obtain local maximum or local minimum; Then change greatly before and after the rate of change at the inclination angle of said magnetic flakes each in said local maximum and said local minimum, make it possible to know and show brightly the female strip pattern part.In addition, in the near zone of said local maximum and said local minimum, form the very little zone of rate of change at the inclination angle of said magnetic flakes, make said slant pattern part to form to look similar tabular.Therefore, can show distincter V-arrangement mountain valley shape part.
The inclination angle of said magnetic flakes can be set at and obtain a local maximum and a local minimum in the gap area between said protruding strip pattern part.According to this structure, can show pair of angled pattern part and single recessed pattern part (said pair of angled pattern part is connected with each other through said single recessed pattern part), can show distincter V-arrangement mountain valley shape part thus.
In this case; When the absolute value of said local maximum or said local minimum is set at said coating surface (upper surface) with respect to said coating target item in 50 ° to 70 ° scope the time; The contrast of said slant pattern part can be easily guaranteed, distincter V-arrangement mountain valley shape part can be shown thus.
In addition; When comprising that the rate of change at the inclination angle of 0 ° and said magnetic flakes is comprising, the inclination angle of the said magnetic flakes in the female strip pattern part on average equals 10 °/mm in 0 ° the zone of 5mm width or when bigger; The female strip pattern part is clearer and distincter, and can show distincter V-arrangement mountain valley shape part thus.
In addition; For example said two the protruding strip pattern parts of said protruding strip pattern part are arranged as each other to be opened to the intervals of 40mm with 20mm, more easily the said V-arrangement mountain valley shape part of visual identity between said two protruding strip pattern parts.
Through magnet arrangement is being shown said space pattern with near the magnetic field the upper surface that is created in said coating target item with the direction of regulating said magnetic flakes on the rear side of said coating target item.For example; When two protruding strip pattern parts (R1) when the profile of first magnet (5) and second magnet (7) forms; Wherein said first magnet (5) is arranged so that its N-pole-face is to this side of said coating target item (1); Said second magnet (7) is set to said first magnet (5) with spaced apart its S-pole-face that makes of certain spacing this side of said coating target item (1); And gap area (G) is set at corresponding to the gap between said first magnet (5) and said second magnet (7), can form space pattern with simple structure, wherein; In said space pattern, can between said two protruding strip pattern parts, see V-arrangement mountain valley shape part, the mode of arranging with heteropole at two magnets described in the said simple structure is arranged on the said coating target item or near said coating target item and is provided with.
In this case; About the magnetic line of force that forms by said first and second magnets; When at a coordinate system (in this coordinate system; Axis of abscissas is represented the distance of said magnetic flakes apart from the center of said protruding strip pattern part; And axis of ordinates is represented the inclination angle of said magnetic flakes) in when obtaining local maximum or local minimum in each the zone in said slant pattern part; And in the zone that obtains said local maximum or local minimum, will be set at 1mT in the magnetic flux density of the near surface of said coating target item or when bigger, can easily guarantee the contrast of said two slant patterns part and can show distincter V-arrangement mountain valley shape part.
In addition, when being configured to offset to one side for one in said first magnet and said second magnet, can make the skew easily of the female strip pattern part than narrow or the thin so that said protruding strip pattern part of another magnet.
In addition, a little less than one in said first magnet and said second magnet is configured on magnetic force than another magnet so that the female strip pattern when partly offseting to one side, can make the skew easily of the female strip pattern part.
The specific embodiment
Hereinafter will embodiment of the invention will be described with reference to drawings.
The surface that Fig. 1 shows the article that apply magnetic material according to an embodiment of the invention is at the figure when the upside of the article that apply magnetic material is observed, and Fig. 2 is the sectional view along the II-II intercepting of Fig. 1.
Thearticle 10 that apply magnetic material are to form through following: use the coating machine (not shown) that coating material is coated to the surperficial 1A (referring to Fig. 2) that appliestarget item 1 and go up to be formed on the coatedfilm 15 on the surperficial 1A that appliestarget item 1.
Applyingtarget item 1 is the sheet-type nonmagnetic substance, and it can be by the external component that for example has the motorcycle that the resin plate of 2mm to the plate thickness of 3mm constitute.In this embodiment, the surperficial 1A ofcoating target item 1 can have and the similar and different color of the color of final products.Under latter instance, the coating material that has with final products same color (not shown) can be coated on the surperficial 1A that appliestarget item 1, perhaps can show and applies color through being mixed into pigment in the moulding material.Applyingtarget item 1 can be formed by rubber or FRP (fibre reinforced plastics) and ester moulding article.
Plate shaped,magnets 3 is arranged along the back surperficial 1B that applies target item 1.Magnet 3 is made up of with tabularsecond magnet 7 tabularfirst magnet 5.
First magnet 5 andsecond magnet 7 are arranged to be spaced apart from each other along the back surperficial 1B that applies target item 1.For example,first magnet 5 andsecond magnet 7 can be arranged as and be substantially parallel to each other or acutangulate V-arrangement.In the describing below of embodiment, two magnets (first magnet 5 and second magnet 7) are arranged to acute angle V-arrangement as shown in fig. 1.But, can use three or more a plurality of magnet, and for magnet, can adopt any arrangement arranging with V-arrangement except that being arranged in parallel, as long as can obtain the effect of the present invention of description at the back.
In addition, the magnetic force of the shape offirst magnet 5 andfirst magnet 5 andsecond magnet 7 basic identical, and these magnets are fixed on the back surperficial 1B that appliestarget item 1 through using adhesive tape or stationary fixture (not shown).
In this embodiment,first magnet 5 andsecond magnet 7 form by the sheet-type magnet plates, and form with being described below.A lot of fine magnetic-particles are mixed into such as rubber or similarly in the moulding material and kneaded, and are shaped to plate subsequently.In addition, the magnetic-particle in the plate that so obtains is magnetized to obtain the sheet-type magnet plates thus.
As shown in Figure 2,first magnet 5 is arranged on the back surperficial 1B that appliestarget item 1 and goes up or near the surperficial 1B in this back, be provided with, make its N-pole-face to applyingtarget item 1 this side the relative side of its S-pole-face pair and coating target item 1.On the contrary,second magnet 7 is arranged on the back surperficial 1B that appliestarget item 1 and goes up or near the surperficial 1B in this back, be provided with, make its S-pole-face to applyingtarget item 1 this side the relative side of its N-pole-face pair and coating target item 1.That is,first magnet 5 andsecond magnet 7 be arranged so that them different magnetic poles in the face of applyingtarget item 1 this side.This different magnetic pole offirst magnet 5 andsecond magnet 7 is arranged in hereinafter and will be called as " heteropole layout ".
Under the situation that heteropole is arranged, one magnetic field in themagnet 5 and 7 receives the influence of magnetic field of another magnet more easily.In this case; The magnetic field (back civilian described magnetic field J1, J2) of the S-that the magnetic line of force that wherein leaves from each magnets N-utmost point gets into same magnets in extremely is formed on more near in each the zone of the N-utmost point, the S-utmost point themagnet 5,7 (that is, near the marginal portion of each in the magnet in the cross section of Fig. 25,7).In addition; The magnetic field (magnetic field J3) of the S-that the magnetic line of force that leaves from a magnets N-utmost point that back literary composition is described gets into another magnet in extremely is formed on the zone of the N-utmost point further frommagnet 5,7, the S-utmost point (that is, magnet in the cross section of Fig. 25 and 7 core and near regional betweenmagnet 5 and 7).
Promptly; In the zone that appliestarget item 1; As shown in Figure 2; Point to the magnetic field J2 of its S-utmost point except that the magnetic field J1 that points to its S-utmost point from the N-utmost point offirst magnet 5 with from the N-utmost point ofsecond magnet 7, the magnetic field J3 that points to the S-utmost point ofsecond magnet 7 from the N-utmost point offirst magnet 5 is formed betweenmagnet 5 and 7 and is formed on the adjacent domain of surperficial 1A of coating target item 1.The direction in magnetic field is by the direction indication of the magnetic line of force.
In addition; Point among the magnetic field J3 of the S-utmost point ofsecond magnet 7 at the N-utmost point offirst magnet 5, the magnetic line of force is because the effect of magnetic field J1 and J2 and being formed near in magnetic field J1 and J2 and the zone between twomagnets 5 and 7 with the zone (magnetic field J3 ') of M shape bending basically along magnetic field J1 and J2.
Here, Fig. 3 shows comparative example, whereinfirst magnet 5 andsecond magnet 7 be arranged so that them same pole in the face of applyingtarget item 1 this side (this same pole is arranged in hereinafter and will be called as " homopolarity layout ").As shown in Figure 3, under the situation that homopolarity is arranged, betweenmagnet 5 and 7, do not form the magnetic field J3 that points tosecond magnet 7 fromfirst magnet 5.
Near the direction in the magnetic field that the surperficial 1A that appliestarget item 1, forms shown in Fig. 2 and the magnetic flux density in magnetic field change according to the magnetic force and the clearance distance H1 betweenfirst magnet 5 andsecond magnet 7 offirst magnet 5 andsecond magnet 7.
As an example, the magnet plates that is used forfirst magnet 5 andsecond magnet 7 can design under following condition.That is, with regard to the size of each magnet plates, width setup is 15mm and thickness setting is 1mm.With regard to the magnetic characteristic of each magnet plates, (absorption) power of attraction is set at about 90g/cm2, surperficial Gauss's value is set at about 60mT, and residual magnetic flux density (Br) is set at about 230mT, and coercivity (bHc) is set at about 160kA/m, and coercivity (iHc) is set at about 240kA/m, and maximum magnetic energy product ((BH) max) is set at about 10kJ/m3.These values provide as an example, and the design condition that is used for magnet plates thus is not limited to these values.
Fig. 4 (A) shows the figure in the magnetic field that when the clearance distance H1 betweenfirst magnet 5 andsecond magnet 7 is set at 20mm, produces, and Fig. 4 (B) shows and is arranged near magnetic flakes 17 that the surperficial 1A that appliestarget item 1 goes up (or the 1A of this surface) apart from as the chart of the relation between the direction (inclination angle) of the distance X of the axis L C at the center of the gap area G betweenmagnet 5 and 7 and magnetic flakes 17 (indicatrix of being represented by f1 at Fig. 4 (B)).
Here, the inclination angle of magnetic flakes 17 is defined as the angle of magnetic flakes 17 with respect to the surperficial 1A inclination (tendency) of coating target item 1.In this embodiment, 0 ° of (degree) expression in the inclination angle among Fig. 4 (B) magnetic flakes 17 is orientated the state that is basically parallel to the surperficial 1A that applies target item 1.For example, when each magnetic flakes 17 was designed to similar bar, magnetic flakes 17 was orientated and makes its elongated (length) side group originally be parallel to the surperficial 1A that applies target item 1.In addition, the positive sign at inclination angle represent magnetic flakes 17 from the direction that is parallel to the surperficial 1A that appliestarget item 1 with respect to the direction of first magnet, 5 tosecond magnets 7 from Fig. 4 (A) be inclined upwardly (front side of tending to finished article).On the other hand, the negative sign at inclination angle representes that magnetic flakes 17 is directed downwards inclination (tending to the rear side of finished article) from the direction that is parallel to the surperficial 1A that appliestarget item 1 with respect to first magnet, 5 tosecond magnets 7 from Fig. 4 (A).Here, the front side is corresponding to the upside of thecoating target item 1 among Fig. 4 (A) (orarticle 10 of coating magnetic material), and rear side is corresponding to the downside of thecoating target item 1 among Fig. 4 (A) (orarticle 10 of coating magnetic material).
Fig. 4 (C) has schematically shown and has been included in the direction of magnetic flakes 17 under the effect in the magnetic field shown in Fig. 4 (A) that is formed in the coatedfilm 15 that applies on the target item 1.In Fig. 4 (C), coatedfilm 15 is illustrated as thickness and is exaggerated to simplify description.
The coating material that is used for coatedfilm 15 is the translucent or transparent liquid coating materials that contains magnetic flakes 17 (referring to Fig. 4 (C)).Coatedfilm 15 approaches, and for example the thickness of dry coatedfilm 15 equals 100 μ m or littler.Thin magnetic film 17 can being combined to form by linearity or sheet-type attritive powder or they; But; Can use any material, as long as material is directed when magneticaction is being mixed on the material in the liquid (its attitude changes) for to point to along magnetic force with arbitrary shape.Light reflectivity or/and the reflection of light direction change according to the direction (attitude) of magnetic flakes 17.In this embodiment, magnetic flakes 17 is formed by stainless steel.But the material of magnetic flakes 17 is not limited to stainless steel, and it can be iron, nickel, cobalt, chromium, iron oxide or similar, and perhaps this metal or metal oxide can apply or be included in any material.
After coating material is coated on the surperficial 1A that appliestarget item 1, when coatedfilm 15 still unhardened and when still being liquid condition thus magnetic flakes 17 along field orientation.Subsequently, coatedfilm 15 dry and sclerosis, thus magnetic flakes 17 is fixed as along field orientation, and after the coating material sclerosis, removefirst magnet 5 andsecond magnet 7.
Here; Hereinafter will with reference to Fig. 4 (A) to Fig. 4 (C) be described in the surperficial 1A that appliestarget item 1 go up (or near the 1A of this surface) magnetic field direction (promptly; The direction of magnetic flakes 17); That is, in the direction (direction of magnetic flakes 17) that is arranged in the magnetic field that applies the coatedfilm 15 on thetarget item 1.
Shown in Fig. 4 (C), be described below, the zone ofcoated film 15 can the direction (direction of magnetic flakes 17) according to magnetic field be segmented into fiveregion R 1 to R5 on the direction that is parallel to thesurperficial 1A that applies target item 1.Region R 1 corresponding tomagnet 5 and 7 be set to each other more near and face with each other (promptly; More near the axis L C of gap area G) outline portion (marginal position 5B, 7A); Andregion R 5 is corresponding to the outline portion (marginal position 5A, 7B) further from (that is, away from gap area G axis L C) that is set to each other ofmagnet 5 and 7.Marginal position 5B and 7A are called " inward flange position " hereinafter, andmarginal position 5A and 7B are called " outward flange position "hereinafter.In region R 1 and R5; The magnetic field that its direction is basically parallel to thesurperficial 1A that appliestarget item 1 is formed by magnetic field J1 and J2 shown in Fig. 4 (B), and magnetic flakes 17 keeps being orientated thesurperficial 1A that is basically parallel to thecoating target item 1 shown in Fig. 4 (C).
When magnetic field thin slice 17 be orientated be parallel to applytarget item 1surperficial 1A (promptly; The inclination angle equals 0 °) time; The edge is the highest perpendicular to the light reflectivity of the direction of thesurperficial 1A that appliestarget item 1; When magnetic field thin slice 17 was oriented on the direction perpendicular to thesurperficial 1A that applies target item 1 (that is, the inclination angle equals ± 90 °), this reflectivity was minimum.Thus, comprise in the magnet and the light reflectivity of theregion R 1 ofoutward flange position 5A, 5B, 7A, 7B and R5 is higher than near the light reflectivity of theenvironment region R 1 and R5.Thus,coated film 15 more light than the peripheral region with the corresponding part ofprofiles magnet 5 and 7 (edge).Therefore,region R 1 shows that with R5 (manifesting) be protruding strip pattern, and the profile (edge) that makes thewin magnet 5 andsecond magnet 7 is projection (vision is given prominence to) visually.
Shown in Fig. 4 (B), in the zone between magnet profile (edge)position 5A and 5B, the inclination angle curve f1 (being represented by f1A) of magnetic flakes 17 is the characteristics that raise up, and the inclination angle of magnetic flakes 17 (direction) changing in 0 ° to+90 ° scope.In this case, the edge is minimum at+90 ° place, inclination angle perpendicular to the light reflectivity of the direction of thesurperficial 1A that appliestarget item 1, and does not almost have light fromcoated film 15, to reflect at about 90 ° thus.
As stated; Between magnet profile (edge)position 5A and 5B, form and comprise the darker regions R2 that does not almost have the zone that light therefrom reflects; And darker regions R2 is by surrounding with R5 with the corresponding lightcolor region R 1 ofmagnet outline position 5A and 5B, makesregion R 1 and R5 become obviously and become along the protruding strip pattern part R1 of the profile offirst magnet 5 and the vision of R5 to give prominence to.
Shown in Fig. 4 (B); In the zone between magnet profile (edge)position 7A and 7B; The inclination angle curve f1 (being represented by f1B) of magnetic flakes 17 is the characteristics to lower convexity, and the inclination angle of magnetic flakes 17 (direction) changing in 0 ° to-90 ° scope.Shown in Fig. 4 (B), in self symmetry of the inclination angle curve f1B betweenmagnet outline position 7A and the 7B and the inclination angle curve f1A betweenmagnet outline position 5A and 5B.
As stated, the inclination angle of magnetic flakes 17 is changing in 0 ° to-90 ° scope betweenmagnet outline position 7A and the 7B, and the edge is minimum at-90 ° place, inclination angle perpendicular to the light reflectivity of the direction of thesurperficial 1A that applies target item 1.Thus, betweenmagnet outline position 7A and 7B, also form and comprise the region R 2 that does not almost have the zone that light therefrom reflects.Thus, this darker regions R2 is by surrounding with R5 with the corresponding lightcolor region R 1 ofmagnet outline position 7A and 7B, makesregion R 1 and R5 become obviously and become along the protruding strip pattern part R1 of the profile ofsecond magnet 7 and the vision of R5 to give prominence to.
Next step; With among the gap area G in thecoated film 15 that is described on applying thesurperficial 1A oftarget item 1, betweenfirst magnet 5 andsecond magnet 7, i.e. the direction (that is the direction of magnetic flakes 17) in the magnetic field in the zone betweenmagnet outline position 5B and 7A (region R 3 and R4).
In this embodiment; The mode thatfirst magnet 5 andsecond magnet 7 are arranged with heteropole is provided with, thereby near (or the 1A of this surface) (promptly being arranged in the lip-deepcoated film 15 that applies target item 1) forms the magnetic field J3 (referring to Fig. 2) that extends to the S-utmost point ofsecond magnet 7 from the N-utmost point offirst magnet 5 in the adjacent domain of thesurperficial 1A that applies target item 1.As shown in Figure 2; The magnetic field J3 that extends from the N-utmost point offirst magnet 5 is influenced by the S-utmost point offirst magnet 5 the way of the S-utmost point that arrivessecond magnet 7; Magnetic field J3 has magnetic field J3 ' thus; This magnetic field J3 ' in the adjacent domain of axis L C near (that is, the center between theinward flange position 7A of theinward flange position 5B offirst magnet 5 and second magnet 7) (or recessed) recessed down to rear side.
In this structure;First magnet 5 is identical magnets withsecond magnet 7; The angle in magnetic field (promptly thus; The inclination angle of magnetic flakes) on axis L C, equal 0 °, and the absolute value at the inclination angle of magnetic flakes 17 is equating (that is left-right symmetric) with respect between the left side of the position at 0 ° at inclination angle and the right side.
When the absolute value at the inclination angle of magnetic flakes 17 between right side and left side during left-right symmetric, along equating (that is left-right symmetric) between right side and the left side perpendicular to the light reflectivity of the direction of thesurperficial 1A that applies target item 1.Therefore, the reflectance signature ofcoated film 15 has identical characteristic with respect between the right side of axis L C and the left side.Therefore, hereinafter only is described in detail in themagnet outline position 5B offirst magnet 5 and the zone between the axis L C, has omitted in themagnet outline portion 7A ofsecond magnet 7 and being repeated in this description of the zone between the axis L C.
Shown in Fig. 4 (B); Has characteristic in the zone of inclination angle curve f1 (representing) betweenmagnet outline position 5B and axis L C of magnetic flakes 17 to lower convexity by f1C; And the inclination angle of magnetic flakes 17 changes to approximately-50 ° (position of local minimum) from 0 ° (magnet outline position 5B), changes to 0 ° and equal 0 ° on axis L C at last subsequently once more.
Magnetic flakes 17 is orientated the direction (inclination angle) of the J3 ' along magnetic field.Therefore; When in the position on the X reference axis of Fig. 4 (B) frommagnet outline position 5B during near axis L C; The direction of magnetic flakes (cephalad direction) changes to approximately-50 ° (fromsurperficial 1A with about-50 direction of ° inclination) from 0 ° (direction that is parallel to surperficial 1A); Passage in transit local minimum (50 °) further changes to 0 ° and reach 0 ° on axis L C at last from-50 °.Thus, shown in Fig. 4 (C), magnetic flakes 17 is arranged as along the inclination that is directed downwards towards axis L C.
At place, inclination angle approximately-50 °, equal at the intervening value between the peak at place, 0 ° of inclination angle and the minimum of locating at-90 ° inclination angle along light reflectivity perpendicular to the direction of thesurperficial 1A that applies target item 1.Thus; Between the position ofmagnet outline position 5B (position that the inclination angle is 0 °) and-50 °, form like lower area; That is, this zone deepens light color placed in the middle (light tone) state gradually from light color (light tone) state, darkens during away from the light tone profile of protruding strip area of the pattern R1 when the position thus; This zone is shown as slantpattern region R 3, and it brings following visual effect: when its during away from protruding strip area of the pattern R1 this zone look like gradually downwards (darker) sink.
In the zone between-50 ° positions and axis L C, when the position during away from slantpattern region R 3 and near axis L C light reflectivity increase gradually, and light reflectivity is the highest on axis L C.
In this case; Thin out gradually region R 4 forms with the slantpattern region R 3 that deepens gradually and continues mutually, and this has brought following visual effect: owing to as if the reason of slantpattern region R 3 looks that the inclination of sinking like (darker) downwards looks softer gradually.
In this embodiment; Shown in Fig. 4 (B); Form each other with the isolated identical slantpattern region R 3 of certain spacing with the place, left side on the right side of axis L C, compare thin out gradually zone with slantpattern region R 3 and be formed between the slant pattern region R of right side and left side locating 3.This zone is shown as recessed strip pattern part R4, and it brings following visual effect: this zone looks similar shape zone, mountain valley (recessed bar), and corresponding slantpattern region R 3 is connected with each other through this zone.
For example, the clearance distance H1 betweenfirst magnet 5 andsecond magnet 7 is set under the situation of 20mm, and recessed strip pattern region R 4 is formed in the width range of the about 10mm on the X reference axis, and wherein axis L C is set at the center of this width range.In addition, in recessed strip pattern region R 4, the inclination angle of magnetic flakes 17 changes about 50 ° with respect to the width of 5mm, and the rate of change at the inclination angle of magnetic flakes 17 equals about 10 °/mm thus.
In addition; Shown in Fig. 4 (B); Between magnet outline position (inward flange position) 5B and 7A, with regard to the inclination angle of magnetic flakes 17, obtain a local maximum and a local minimum, and be the turning point shown in Fig. 4 (C) in the position (K1 and K2 among Fig. 4 (A)) that obtains these extreme values.
As stated, the gap area G that is clamped by two protruding strip area of the pattern R1 comprises slant pattern part R3 and recessed strip pattern region R 4.Slantpattern region R 3 is adjacent with corresponding protruding strip area of the pattern R1 respectively; And look darker than protruding strip area of the pattern R1 color; Make theseregion R 3 look similar sloping portion downward-sloping on depth direction (looking that this zone deepens gradually), and recessed strip pattern region R 4 look similar recessed bar between protruding strip area of the pattern R3.Thus; Between two protruding strip area of the pattern R1, can provide V-arrangement pattern as if along the sink depth preception of (down to the rear side of finished article) of depth direction; Compare with the situation that a protruding strip area of the pattern R1 only is set thus; Bring more three-dimensional effect can for pattern (for example, V-arrangement pattern).
Slantpattern region R 3 and recessed strip pattern region R 4 through with the inclination angle of the magnetic flakes among the gap area G 17 0 ° in about-50 ° the scope (promptly; Bear) change the and subsequently inclination angle of magnetic flakes 17 is changed to 0 ° (that is, positive) once more and form.In this case; Preferably, the rate of change at the inclination angle of magnetic flakes 17 negative sense (or forward) in slantpattern region R 3 change and subsequently in recessed strip pattern region R 4 more sharp forward (or negative sense) change to form slantpattern region R 3 and recessed strip pattern region R 4.In other words; Preferably; The direction of magnetic flakes 17 is changed into and is made the rate of change at inclination angle of the magnetic flakes 17 in recessed strip region R4 greater than the rate of change at the inclination angle of the magnetic flakes in slantpattern region R 3 17, thereby makes recessed strippattern region R 1 look more clearly similar mountain valley shape part.
According to this structure; The modes that twomagnets 5 and 7 are arranged with heteropole are provided with; Thereby a local maximum (in Fig. 4 (B) approximately+50 °) that forms the angle in magnetic field and a local minimum (in Fig. 4 (B) about-50 °); And the rate of change at the inclination angle of magnetic flakes 17 through this local maximum and local minimum from the occasion of change to negative value and from negative value change on the occasion of, form slantpattern region R 3 and recessed strip pattern region R 4 thus.Therefore, can carry out the coating that brings stereoscopic vision (effect) with simple method.
The stereoscopic vision of this embodiment (effect) can deposit realization at the multiple cloth ofmagnet 5 and 7.In above embodiment, the clearance distance H1 betweenmagnet 5 and 7 is set at 20mm, still, even when clearance distance H1 changes, also can realize the stereoscopic vision (effect) of this embodiment.
Fig. 5 (A) shows the figure in the magnetic field when the clearance distance H1 betweenfirst magnet 5 andsecond magnet 7 is set at 30mm, and Fig. 5 (B) shows in the magnetic flakes 17 of the near surface that appliestarget item 1 apart from the figure (being represented by f2) as the relation between the direction (inclination angle) of the distance X of the axis L C at the center of the gap area G betweenmagnet 5 and 7 and magnetic flakes 17.
Shown in Fig. 5 (A) and Fig. 5 (B); Even under the situation of clearance distance H1=30mm; Heteropole throughfirst magnet 5 andsecond magnet 7 is arranged; Also form the magnetic field J3 and near the magnetic field J3 ' (that is, in the cross section of Fig. 5 (A), extending) that axis L C, is recessed to rear side that extend to the S-utmost point ofsecond magnet 7 from the N-utmost point offirst magnet 5, and can in gap area G, obtain a local maximum and a local minimum through this magnetic field J3 ' with M shape.
Thus; Slantpattern region R 3 forms through the magnetic field between the magnetic field betweenmagnet outline position 5B and the local minimum position andmagnet outline position 7A and the local maximum position adjacent with two protruding strip pattern R1; In this slantpattern region R 3; Direction (inclination) state that magnetic flakes 17 is orientated the magnetic flakes fromregion R 1 is along being directed downwards (in the zone betweenmagnet outline position 5B and axis L C) or upwards (in the zone betweenmagnet outline position 7A and axis L C) further inclination towards the center of gap area G; And through the recessed strip pattern region R 4 of the formation of the magnetic field (magnetic field between local maximum position and local minimum position) between the slantpattern region R 3; In this recessed strip pattern region R 4; The rate of change at the inclination angle of magnetic flakes 17 changes to negative (subtracting) value and is also just changing to (adding) value from negative (subtracting) value from just (adding) value, and this is recessed into strip pattern region R 4 and looks similar recessed bar thus.
Under the situation of clearance distance H1=30mm; Shown in Fig. 5 (B); The local maximum at the inclination angle of magnetic flakes 17 equals approximately+60 °, and local minimum equals approximately-60 °, and recessed strip pattern region R 4 is formed in the width range of about 10mm; Wherein axis L C is set at the center of this width range, and the angle rate of change of the magnetic flakes 17 in recessed strip pattern R4 equals 57 °/5mm=11.4 °/mm.
Promptly; Under the situation of clearance distance H1=30mm; When comparing with clearance distance H1=20mm; In the extreme value at the inclination angle of magnetic flakes 17 (local maximum and local minimum) each all increases 10 °, and the width of recessed strip pattern R4 is equal basically, and the rate of change at the inclination angle of magnetic flakes 17 equals about 10 °/mm basically.
Fig. 6 (A) shows when the clearance distance H1 betweenfirst magnet 5 andsecond magnet 7 is set at 40mm near the figure in the magnetic field of (or the 1A of this surface) on thesurperficial 1A that appliestarget item 1, and Fig. 6 (B) shows near thesurperficial 1A that appliestarget item 1 magnetic flakes 17 apart from the figure (indicatrix of being represented by f3 among Fig. 4 (B)) of the relation between the direction (inclination angle) of the distance X of axis L C and magnetic flakes 17.
Shown in Fig. 6 (A) and Fig. 6 (B); Even under the situation of clearance distance H1=40mm; Heteropole throughfirst magnet 5 andsecond magnet 7 arrange also form from the N-utmost point offirst magnet 5 extend tosecond magnet 7 the S-utmost point magnetic field J3 and the magnetic field J3 ' that the adjacent domain (or peripheral region) of axis L C, is recessed to rear side (promptly; M shape magnetic field), and through this M shape magnetic field J3 ' can in gap area G, obtain a local maximum and a local minimum.
Thus; Form slantpattern region R 3 through the magnetic field between the magnetic field betweenmagnet outline position 5B and the local minimum andmagnet outline position 7A and the local maximum; This slantpattern region R 3 is adjacent with two protruding strip pattern R1; And magnetic flakes 17 is along the inclination that is directed downwards towards the center of gap area G in slantpattern region R 3; And form recessed strip pattern region R 4 through the magnetic field (magnetic field between local maximum position and local minimum position) between the slantpattern region R 3; The rate of change at the inclination angle of magnetic flakes 17 changes to negative (subtracting) value and is also just changing to (adding) value from negative (subtracting) value from just (adding) value in recessed strip pattern region R 4, and this is recessed into strip pattern region R 4 and looks similar recessed bar thus.
Under the situation of clearance distance H1=40mm; Shown in Fig. 6 (B); The local maximum at the inclination angle of magnetic flakes 17 equals approximately+70 °, and local minimum equals approximately-70 °, and recessed strip pattern region R 4 is formed in the width range of about 10mm; Wherein axis L C is set at the center of this width range, and the angle rate of change of the magnetic flakes 17 in recessed strip pattern R4 equals 57 °/5mm=11.4 °/mm.
Promptly; Under the situation of clearance distance H1=40mm; When comparing with clearance distance H1=30mm; In the extreme value at the inclination angle of magnetic flakes 17 (local maximum and local minimum) each all increases 10 °, and the width of recessed strip pattern R4 is equal basically, and the rate of change at the inclination angle of magnetic flakes 17 equals about 10 °/mm basically.
Fig. 7 shows when the clearance distance H1 betweenfirst magnet 5 andsecond magnet 7 is set at 80mm near thesurperficial 1A that appliestarget item 1 magnetic field apart from the figure of the relation between the distance X of axis L C and the direction in magnetic field (inclination angle) (indicatrix of being represented by f4).
As shown in Figure 7, under the situation of clearance distance H1=80mm, even when the mode of arranging with heteropole whenfirst magnet 5 andsecond magnet 7 is provided with, becausefirst magnet 5 andsecond magnet 7 are away from each other, the influence of magnetic field J1 and J2 is very little.Therefore, almost do not form recessed strip pattern region R 4, and can not expect to realize stereoeffect thus based on the enhancing of recessed strip pattern region R 4.
Fig. 8 shows near applying thesurperficial 1A oftarget item 1 magnetic field apart from the figure of the relation between the distance X of axis L C and the direction in magnetic field (inclination angle) (indicatrix of being represented by the f5 among Fig. 8).
Under the situation of clearance distance H1=5mm, the extreme value in magnetic field (local maximum and local minimum) is formed among the gap area G betweenmagnet 5 and 7, and still, the absolute value of extreme value equals 20 ° or littler.Thus, be difficult to the variation of the brightness of visual identity slantpattern region R 3 and recessed strip pattern region R 4, and be difficult to vision thus and fully discern this variation.
With regard to inventor's discussion and research; Have been found that; Following condition is the condition of allowing abundant visual identity slantpattern region R 3 and recessed strip pattern region R 4 and strengthening stereoeffect (vision) thus: each in local maximum and the local minimum is formed on a position among the gap area G betweenmagnet 5 and 7; The absolute value of local maximum and local minimum is in 50 ° to 70 ° scope, and the rate of change at the inclination angle of the magnetic flakes 17 in recessed strip pattern region R 4 equals 10 °/mm or bigger.Distance range from 20mm to 40mm is the optimized scope that clearance distance H1 satisfies this condition.Above distance range is optimum in this embodiment, and still, the distance value except above distance range also can be used, as long as can obtain the stereoeffect that the present invention realizes.
In addition, wherein obtain the outline portion (marginal portion) (magnet outline position 5B and 7A) of the zone of local maximum and local minimum nearmagnet 5 and 7.Thus, corresponding with these zones is higher relatively near the magnetic flux densities that apply thesurperficial 1A oftarget item 1, guarantees to be 1mT or bigger at least in this embodiment.When magnetic density is high more, magnetic flakes 17 is (magnetic line of force) orientation along magnetic field more easily just.Thus, magnetic flakes 17 can be arranged along magnetic field in local maximum and local minimum place, and the contrast of two slantpattern region R 3 can be clearer.
As stated; In thearticle 10 of the coating magnetic material of this embodiment; Make that through magnetic flakes 17 looking is that three-dimensional space pattern comprises: substantially parallel protruding strip area of the pattern (part) R1, it looks similar raised item (protuberant bar) through magnetic flakes 17; Slant pattern zone (part) R3, it is adjacent with protruding strip area of the pattern R1 in the gap area G that the protruding strip area of the pattern R1 by two clamps, and looks similar slant pattern through magnetic flakes 17; And recessed strip pattern R4; It is arranged on two between the slantpattern region R 3 boundary and wherein the attitude of magnetic flakes 17 (inclination angle) change with the rate of change bigger than the rate of change at the inclination angle of the magnetic flakes in slantpattern region R 3 17, make recessed strip pattern R4 look similar recessed (recessed) bar.Therefore, between two protruding strip area of the pattern R1, can form and look the space pattern of similar V-arrangement mountain valley shape part, and can show more three-dimensional pattern through the coating that use contains magnetic flakes 17.
When magnetic flakes 17 is made as axis of abscissas and the inclination angle of magnetic flakes 17 when being made as axis of ordinates apart from the distance of the center (axis L C) between two protruding strip area of the pattern R1, the inclination angle of magnetic flakes 17 is controlled as and makes and in slantpattern region R 3, obtain local maximum and local minimum.Thus, before and after local maximum and local minimum, the rate of change at the inclination angle of magnetic flakes 17 from the occasion of change to negative value or from negative value change on the occasion of, can clearly illustrate recessed strip pattern region R 4 thus.In addition, near local maximum and local minimum, form the very little zone of angle rate of change of magnetic flakes 17, slantpattern region R 3 looks similar and tabular makes it possible to show clearer and distincter V-arrangement mountain valley shape part thus.
A position among the gap area G of the inclination angle of magnetic flakes 17 between protruding strip area of the pattern R1 has each in local maximum and the local minimum; Can show pair of angled area of the pattern R3 thus and make this, make it possible to show clearer and distincter V-arrangement mountain valley shape part the single recessed strip pattern region R 4 that inclination collar region R3 links to each other.
The local maximum at angle of inclination and the absolute value of local minimum with respect to as thesurperficial 1A of coating surface in 50 ° to 70 ° scope; Can easily guarantee the contrast of two slantpattern region R 3 thus, make it possible to show clearer and distincter V-arrangement mountain valley shape part.
In addition, the inclination angle of the magnetic flakes 17 in recessed strip pattern R4 comprises 0 °, and the rate of change at the inclination angle of magnetic flakes 17 on average equals 10 °/mm or bigger in comprising 0 ° the width regions of 5mm.Thus, recessed strip pattern region R 4 is clearer, and can more know and show more brightly V-arrangement mountain valley shape part.
Two protruding strip area of the pattern R1 are arranged as each other and open to the intervals of 40mm with 20mm, make it possible to the V-arrangement mountain valley shape part of visual identity easily between two protruding strip area of the pattern R1.
In addition, throughmagnet 5 and 7 being arranged on the rear side that appliestarget item 1 to be created in the space pattern that attitude (direction) that thesurperficial 1A that appliestarget item 1 goes up near the magnetic field of (or the 1A of this surface) and regulate magnetic flakes 17 shows (manifesting) this embodiment.Two protruding strip area of the pattern R1 form along the profile offirst magnet 5 and the profile ofsecond magnet 7; Whereinfirst magnet 5 is arranged so that its N-pole-face to applyingtarget item 1 this side, andsecond magnet 7 is set to spaced apart and make its S-pole-face to applyingtarget item 1 this side with first magnet 5.Gap area G is corresponding to the gap betweenfirst magnet 5 and second magnet 7.Therefore; The space pattern of the V-arrangement mountain valley shape part that can between two protruding strip area of the pattern R1, see can be formed and can more be known and demonstration more brightly by this simple structure; In this simple structure, the modes that twomagnets 5 and 7 are arranged with heteropole are arranged on and apply on thetarget item 1 or applying near the settingtarget item 1.
About the magnetic line of force that forms byfirst magnet 5 andsecond magnet 7; When axis of abscissas is represented the position and axis of ordinates when representing the inclination angle; The inclination angle has local maximum or local minimum in slantpattern region R 3, and in the zone that obtains local maximum or local minimum, can guarantee near the 1mT of on thesurperficial 1A that applies target item 1 (1A of this surface) or bigger magnetic flux density.Thus, magnetic flakes 17 can be easily directed along the magnetic line of force, makes the contrast that easily obtains two slantpattern region R 3 can show clearer and distincter V-arrangement mountain valley shape part thus.
In this embodiment, not all magnetic flakes 17 incoated film 15 all must be directed with fixing direction along magnetic field, and some magnetic flakes 17 are directed along different directions.Therefore, " inclination angle of magnetic flakes 17 " of the present invention means the average slope angle in a plurality of magnetic flakes 17 of this position.
To the method that " inclination angle of magnetic flakes 17 " is somebody's turn to do in detection be described with reference to Fig. 9 below.
As shown in Figure 9; Light LT is applied to position P; Change itsincidence angle θ 1 simultaneously; And measure theincidence angle θ 1 on the direction ofincidence angle θ 1, the obtain high light reflectivity rate position, angle of bright light rays (wherein observe), thereby can confirm average slope angle, i.e. " inclination angle of magnetic flakes 17 " in the magnetic flakes 17 of this position.Fig. 9 shows following situation: wherein change into angle θ 1 ' andangle θ 1 with respect to theincidence angle θ 1 perpendicular to the line S on the surface ofcoated film 15 when light, and " in time, carries out and measures, and the reverberation of light LT is represented by dotted arrow.
The invention is not restricted to above embodiment, and any variations can be implemented into above embodiment and not depart from theme of the present invention with any application.For example, in above embodiment,first magnet 5 is designed to be of similar shape and identical magnetic force with second magnet 7.But, the invention is not restricted to this mode, different magnets can be as the magnet at right side and place, left side.
When using different magnets in right side and left side; The magnetic field J3 that extends to the S-utmost point of another magnet (second magnet 7) from the N-utmost point of a magnet (first magnet 5) changes from the magnetic field of above embodiment; Particularly; Expectation obtains following characteristic: the position that the inclination angle is 0 ° (that is, magnetic field is parallel to the position of the direction of thesurperficial 1A that applies target item 1) any skew in magnet.Therefore, expectation is that recessed strip pattern region R 4 can easily depart from center (axis L C).
Figure 10 (A) shows an example;First magnet 5 is formed by the material with identical magnetic force withsecond magnet 7 in this example; But be constructed so that first magnet, 5 to thesecond magnets 7 are narrow; And Figure 10 (B) shows an example, andfirst magnet 5 is formed by the material with identical magnetic force withsecond magnet 7 in this example, but first magnet, 5 to thesecond magnets 7 are thin.
From inventor's discussion and research, have been found that shown in Figure 10 (A), when first magnet, 5 to thesecond magnets 7 are narrow, are recessed into strip pattern region R 4 and move to this lateral deviation of first magnet 5 (narrower magnet).In Figure 10 (A), Y representes the side-play amount of recessed strip pattern region R 4.In addition, have been found that also shown in Figure 10 (B) that when first magnet, 5 to thesecond magnets 7 were thin, recessed strip pattern region R 4 was moved to this lateral deviation of first magnet 5 (thinner magnet).
From inventor's further discussion and research; Have been found that; Compare with the method forsecond magnet 7 with making the firstdifferent magnet 5 of width, the method for making first different on thethickness magnets 5 andsecond magnet 7 can more effectively make recessed strip pattern region R 4 skews.
That is, through using the straightforward procedure of using different magnets in right side and left side can make recessed strip pattern region R 4 skews.The method that makes one magnetic force infirst magnet 5 andsecond magnet 7 be weaker than the magnetic force of another magnet through use can make (axis L C) skew from the center of recessed strip pattern region R 4.
In above embodiment,first magnet 5 is arranged as thetight back surperficial 1B that appliestarget item 1 that contacts with second magnet 7.But, the invention is not restricted to this layout of magnet, it is spaced apart that magnet can be arranged as and apply theback surperficial 1B oftarget item 1.
In addition, in above embodiment, through using direction (attitude) that twomagnets 5 and 7 regulate magnetic flakes 17 to show more three-dimensional pattern.As stated, the number of magnet and shape are not limited to above embodiment.
In brief; Through forming: protruding strip pattern part R1 can more know and show the more pattern of solid more brightly in the lower part; It is through looking similar convexity (projection) bar along the directed magnetic flakes 17 of predetermined direction (for example, being parallel to the surface that applies target item); Slant pattern part R3, its magnetic flakes that is directed downwards inclined orientation 17 through the center of the clearance G of edge between protruding strip area of the pattern R1 looks darker than protruding strip area of the pattern R1 color; And recessed strip pattern part R4; Its border (gap) between slant pattern part R3 is located, and the magnetic flakes 17 that changes with the tilt angle varied rate bigger than the tilt angle varied rate of the magnetic flakes 17 in slant pattern part R3 of direction of passage (inclination angle) and look similar recessed (recessed) bar.Therefore, the invention is not restricted to use the method for two magnets, and can use several different methods, as long as can implement the direction of the magnetic flakes of above description.