WO2019117682A1 - Decoration member - Google Patents

Abstract

The present application relates to a decoration member.

Description

Decoration member

The present application is based on Korean Patent Application No. 10-2017-0173250 filed on December 15, 2017, and Korean Patent Application No. 10-2018-0093364 filed on August 9, 2018, The contents of which are incorporated herein by reference.

The present application relates to a decorative member.

Cosmetic containers, various mobile devices, and home appliances have a great role in designing products, such as color, shape, pattern, etc., of products other than the functions of products, to give value to customers. Depending on the design, the preference and price of the product are also influenced.

As an example, in the case of a cosmetic compact container, various colors and colors are implemented in various ways and applied to products. There is a way to give a color to the case material itself and a method to attach a design to the case material by attaching a deco film that implements color and shape.

In the conventional deco film, color development was attempted through printing, deposition, and the like. If different colors are expressed on a single plane, they must be printed more than twice, and it is difficult to implement them when various colors are to be applied to a three-dimensional pattern. In addition, the conventional deco film has a fixed color depending on viewing angles, and even if there is a slight change, it is limited to the degree of color difference.

The present application provides a decorative member.

The present invention relates to a color reproduction layer comprising a light reflection layer and a light absorption layer provided on the light reflection layer; And a base material provided on one side of the color developing layer and including a pattern layer,

Wherein the light absorbing layer comprises silicon (Si)

Wherein? Is not less than 0 but not more than 0.7.

[Formula 1]

[Formula 2]

[Formula 3]

In the formula 1, T _x is represented by the formula 2, Ty is represented by the formula 3,

In the formula 2,

silver

, T ₀ is 60 nm,

T ₁ = m * T ₀ + For non-10nm and the T _x is satisfies the formula 2, and T ₁ = m * T ₀ + 10nm if the Tx is 1, and wherein m is an integer of 1 or more,

T ₁ is an average thickness of a light absorbing layer included in one end face (S1) in the thickness direction of the decorative member, and T ₂ is an average thickness of the light reflecting layer included in one end face (S1) in the thickness direction of the decorative member The average thickness.

According to the embodiments described in the present specification, external light is absorbed in each of the reflecting paths when the incident light is incident through the decorative member and reflected by the reflecting mirror, and the external light is reflected by the surface of the light absorbing layer and the surface of the light reflecting layer, respectively A constructive interference and a destructive interference phenomenon occur between the reflected light on the surface of the light absorption layer and the reflected light on the surface of the light reflection layer. A specific color can be expressed through the above-described incidence path and the phenomenon of light absorption, constructive interference, and destructive interference in the reflector path. Therefore, a specific color can be realized according to the reflectance spectrum and the composition of the light absorbing layer depending on the material of the light reflecting layer. In addition, since the color to be expressed has thickness dependency, the color can be changed according to the thickness even when the same material composition is used. In particular, when the light absorbing layer is made of Si, which is a single material, uniformity due to a single material can be ensured unlike a composite material produced by interaction of a target material and a gas.

The decorative member according to one embodiment of the present invention includes silicon and can display the color of a cool tone by adjusting the thickness of the light absorbing layer and the light reflecting layer to a specific range.

The present application provides a decorative member having a dichroic property that exhibits a different color depending on a viewing direction and has improved dichroism and visibility.

1 shows a decorative member according to an embodiment of the present invention.

2 shows a method of distinguishing a light absorbing layer from a light reflecting layer.

Fig. 3 shows one point of the light absorbing layer and the thickness of the light absorbing layer including the same.

Fig. 4 illustrates the principle of interference of light in the light absorbing layer and the light reflection layer.

5 to 13 show decorative members according to an embodiment of the present invention.

Figs. 14 to 31 show patterns of the pattern layer.

32 and 33 show the warmtone and the cooltone.

Fig. 34 shows the color change according to the thickness of the decorative member in the experimental example.

35 is a graph showing the refractive index (n) and extinction coefficient (k) of silicon.

36 is a graph showing the refractive index (n) and the extinction coefficient (k) of silicon oxide.

37 shows a graph for Equation 2A.

Hereinafter, the present specification will be described in detail.

In the present specification, the term "or" indicates the meaning of "and / or ", unless the context clearly dictates otherwise.

In the present specification, the term "layer" means that at least 70% of the area in which the layer is present is covered. , Preferably at least 75%, more preferably at least 80%.

In this specification, the "thickness" of any layer means the shortest distance from the lower surface to the upper surface of the layer.

In the present specification, the hue represented by the decorative member can be defined by the spectral characteristics of the light source, the reflectance of the object, and the color vision sensitivity efficiency of the observer.

For objective color representation, measurement of color is required at the standard light source and the standard observer, and the color is expressed by the coordinates of the color space. The color of the decorative member may be represented by CIE Lab (L * a * b *) coordinates or LCh coordinates that provide a visually uniform color space. L * represents brightness, + a * represents redness, -a * represents greenness, + b * represents yellowness and -b * represents blueness, and C * and h * will be described later. The total color difference according to the observation position in the color space is

. ≪ / RTI >

The color measurement can be performed by using a spectrophotometer (CM-2600d, manufactured by Konica Minolta). The spectral reflectance of the sample can be measured by a spectrophotometer, and the reflectance of each wavelength can be expressed. From the spectral reflectance graph and the converted color coordinates . At this time, the data is obtained at an 8-degree viewing angle and measured in the horizontal direction and the vertical direction with respect to the decorative member to see the dichroism of the decorative member.

The viewing angle is an angle formed by a straight line d1 in the normal direction of the color developing layer surface of the decorative member and a straight line d2 passing through the spectrophotometer and one point of the decorative member to be measured, And has a range of 0 to 90 degrees.

When the viewing angle is 0 degree, it means that the viewing angle is measured in the same direction as the normal direction of the surface of the color developing layer of the decorative member.

In the present specification, the "light absorbing layer" and the "light reflecting layer" are layers having relative physical properties, the light absorbing layer means a layer having a higher light absorbing property than the light reflecting layer, It can mean a layer having high light reflectivity.

Each of the light absorbing layer and the light reflecting layer may be composed of a single layer, or may be composed of two or more layers.

In this specification, the light absorbing layer and the light reflecting layer are named according to their functions. With respect to light having a specific wavelength, a layer that reflects a relatively large amount of light can be expressed by a light reflecting layer, and a layer that reflects light with relatively little light can be expressed by a light absorbing layer.

1 illustrates a laminated structure of a decorative member according to an embodiment of the present invention. Fig. 1 shows a decorative member including the color developing layer 100 and the substrate 101. Fig. The color developing layer (100) includes a light reflecting layer (201) and a light absorbing layer (301). 1 shows that the substrate 101 is provided on the light absorbing layer 301 side of the color developing layer 100, it may be provided on the light reflecting layer 201 side.

2, the light absorbing layer and the light reflecting layer will be described. In the decorative member of Fig. 2, each layer is laminated in the order of L _i-1 layer, L _i layer and L _{i + 1} layer in the order of the incoming light, and between the L _i-1 layer and the L _i layer The interface I _i is located, and the interface I _{i + 1} is located between the L _i layer and the L _{i + 1} layer.

The reflectance at the interface I _i can be expressed by the following equation (1) when light having a specific wavelength is irradiated in a direction perpendicular to each layer so that thin film interference does not occur.

[Equation 1]

K _i (λ) is an extinction coefficient according to the wavelength λ of the i-th layer, n _i (λ) denotes a refractive index according to the wavelength λ of the i-th layer, . The extinction coefficient is a measure to define how strongly an object absorbs light at a specific wavelength, and the definition is as described above.

When the sum of the reflectances of the respective wavelengths at the interface I _i calculated at each wavelength is defined as R _i by applying Equation (1), R _i is represented by Equation (2) below.

&Quot; (2) "

Hereinafter, the decorative member including the light reflection layer and the light absorption layer will be described.

The present invention relates to a color reproduction layer comprising a light reflection layer and a light absorption layer provided on the light reflection layer; And a base material provided on one side of the color developing layer and including a pattern layer,

Wherein the light absorbing layer comprises silicon (Si)

Wherein? Is not less than 0 but not more than 0.7.

[Formula 1]

[Formula 2]

[Formula 3]

In the formula 1, T _x is represented by the formula 2, Ty is represented by the formula 3,

In the formula 2,

silver

, T ₀ is 60 nm,

T ₁ = m * T ₀ + For non-10nm and the T _x is satisfies the formula 2, and T ₁ = m * T ₀ + 10nm if the Tx is 1, and wherein m is an integer of 1 or more,

T ₁ is an average thickness of a light absorbing layer included in one end face (S1) in the thickness direction of the decorative member, and T ₂ is an average thickness of the light reflecting layer included in one end face (S1) in the thickness direction of the decorative member The average thickness.

In an embodiment of the present disclosure, in the TDj, when T ₁ = m * T ₀ + 10 nm, the T _x satisfies the formula 2, and when T ₁ = m * T ₀ + 10 nm, , And m is an integer of 1 to 5.

In this specification, the one end face (S1) in the thickness direction of the decorative member may mean a section including a straight line (d1) in the thickness direction of the decorative member including a certain point of the decorative member. At the end face S1, the interface between the light absorbing layer and the light reflecting layer appears, and the light absorbing layer and the light reflecting layer can be distinguished from each other. The light absorbing layer and the light reflecting layer can be distinguished from each other by analyzing a component to be described later, and the thickness of each layer can be measured and substituted into the above-mentioned Equation 2 and Equation 3.

In this specification, the 'one point of the decorative member' may mean any point on the surface or inside of the decorative member.

The decorative member according to one embodiment of the present invention can be a decorative member in which the light absorbing layer includes silicon (Si) and a cool tone can be observed through the light absorbing layer by adjusting the thickness of the light absorbing layer and the light reflecting layer to a specific range have. At this time, the relation of the thickness of the light absorption layer and the light reflection layer can be expressed by a cool tone parameter? Kulton the parameter σ may be expressed as σ _c. The subscript c of σ _c means cool tone.

In one embodiment of the present invention,? Represented by the formula 1 may be more than 0 and not more than 0.7, not less than 0.12 but not more than 0.7, not less than 0.15 but not more than 0.6, or not less than 0.15 but not more than 0.55. When the above numerical range is satisfied, a cool color (cool tone) can be observed through the light absorbing layer and the user can easily express a desired color among cold colors.

In one embodiment of the present invention, T _x is the thickness parameter represented by the formula (2). Light absorption layer appear alternately hot and cold color (womton, warm tone) or cold color (kulton, cool tone) according to the thickness change, the color change appears to have a constant cycle (T ₀₎ thickness. Here, Tx may mean the ratio of the light absorbing layer thickness (T ₁ ) at a certain point to a certain period (T ₀ ) of the thickness of the light absorbing layer. For example, if a constant period of thickness is 60 nm, the Tx value when the thickness of the light absorption layer is 20 nm, 80 nm and 140 nm is equal to 0.17.

In the formula (2), T ₁ is an average thickness of the light absorbing layer included in one end surface (S1) in the thickness direction of the decorative member. When the cross section of the decorative member is observed through a scanning electron microscope (SEM) or the like, the interface can be confirmed between the light reflection layer and the light absorption layer, and a layer containing silicon (Si) . At this time, the thickness of the light absorbing layer can be calculated and applied to T ₁ .

FIG. 3 shows a method of determining the thicknesses of the light absorbing layer and the light reflecting layer. The shortest line segment included in the light absorption layer including this point can be defined as the thickness (T ₁ ) of the light absorbing layer when any one point (the red dot in FIG. 3) of the interface between the light absorbing layer and the light reflecting layer is selected, The shortest line segment included in the light reflection layer including this point can be defined as the thickness (T ₂ ) of the light reflection layer. At this time, the thicknesses of the light absorbing layer and the light reflecting layer can be determined in the same manner by selecting different points at the interface between the light absorbing layer and the light reflecting layer, and the thickness of the light reflecting layer and the light absorbing layer derived by repeating the above- The average thickness can be calculated by dividing by the number of times.

In addition, T ₁ can be achieved by adjusting the process pressure used for deposition in forming the light absorbing layer, the flow rate of the reactive gas to the plasma gas, the voltage, the deposition time, or the temperature.

In the formula 2,

silver

Lt; / RTI > [x] is a Gaussian symbol commonly used in the field to which this technique belongs, or in mathematics, and means the maximum integer not exceeding x.

In one embodiment of the present specification, the equation (2) can be expressed by the following equation (2A).

[Formula 2A]

In the formula 2A, T _x is a function value according to T ₁ of the function represented by f (T ₁ ), n is a positive integer of 1 or more, T ₁ is a cross section of one side in the thickness direction of the decorative member Is the average thickness of the light absorbing layer included in the light emitting layer S1, and T ₀ is 60 nm.

Formula 2A shows a periodic function f (T ₁ ) according to the thickness T ₁ of the light absorbing layer. Means that the same f (T ₁ ) value appears according to the cycle T ₀ . This is shown in Fig. 37,

F (T ₁ ) appearing repeatedly in a range of a predetermined period (T ₀ ). For example, the same as T ₁ = 0.5T ₀ + 10nm when one of f (0.5T ₀ + 10nm) with _{T 1 = 1.5T 0 + 10nm f} (1.5T 0 + 10nm) value of 0.5 when the time of day Do.

In the decorative member of the present invention, a cooltone or a warmtone appears repeatedly with a constant cycle according to a change in thickness of the light absorption layer. At this time, T ₀ can be expressed as "kulton the period of the thickness of the light absorption repeated,".

In one embodiment of the present invention, the thickness T ₁ of the light absorption layer is 70 nm or less, preferably 69 nm or less, and Tx can be expressed by the following formula 2-1.

[Formula 2-1]

Tx = (T _{1 - 10} nm) / T ₀

In the formula 2-1, the definitions of T ₁ and T ₀ are as shown in the formula 2.

In one embodiment of the present invention, the light absorption layer thickness parameter Tx may be greater than 0 and less than or equal to 0.5, preferably greater than or equal to 0.01 and less than or equal to 0.5, and more preferably greater than or equal to 0.1 and less than or equal to 0.5. When the above numerical range is satisfied, the cool color (cool tone) in the decorative member can be more clearly observed.

In one embodiment of the present invention, the light reflection layer thickness parameter Ty may be more than 1.0 but less than 1.4, preferably 1.01 to 1.4, more preferably 1.02 or more and 1.3 or less. When the above numerical range is satisfied, the cool color (cool tone) in the decorative member can be more clearly observed. When the thickness Ty of the light reflection layer thickness exceeds 1.0, it means that the light reflection layer has a thickness of not zero.

Methods for analyzing the components of the light absorbing layer and the light reflecting layer are as follows. Specifically, a survey scan is performed on the surface and thickness direction of the light absorption layer using X-ray photoelectron spectroscopy (XPS) or electron spectroscopy for chemical analysis (ESCA, Thermo Fisher Scientific Inc.) After qualitative analysis, proceed with quantitative analysis with narrow scan. At this time, a survey scan and a narraw scan are performed under the conditions shown in Table 1, and qualitative and quantitative analysis are performed. Peak background uses smart method.

Element	Scan section binding Energy	Step size
Narrow (Snapshot)	20.89 eV	0.1 eV
Survey	-10 to 1350 eV	1 eV

In addition, the component analysis can be performed by preparing a light absorption layer slice having the same composition as that of the light absorption layer before laminating the decorative member. Alternatively, when the structure of the decorative member is the substrate / pattern layer / light reflecting layer / light absorbing layer, the outermost angle of the decorative member can be analyzed by the above-described method. In addition, the light absorbing layer can be confirmed visually by observing a cross-sectional photograph of the decorative member. For example, when the decorative member has a structure of a substrate / a pattern layer / a light reflection layer / a light absorption layer, it can be confirmed that an interface exists between the respective layers in the cross-sectional photograph of the decorative member, wherein the outermost layer corresponds to the light absorption layer.

In one embodiment of the present invention, the hue angle h * in the CIE LCh color space of the light absorbing layer is in the range of 105 to 315, in the range of 120 to 300, 135 Lt; 0 > to 300 [deg.], 160 [deg.] To 300 [deg.], Or 200 [

When the hue angle h * is in the above range, a cool tone can be observed from the decorative member. Coulton means that the above-mentioned numerical range is satisfied in the CIE LCh color space. The color corresponding to the warm tone is shown in FIG. 32, and the color corresponding to the cool tone is shown in FIG. 33, respectively.

In one embodiment of the present invention, L in the CIE LCh color space of the light absorbing layer may be 0 to 100, or 30 to 100.

In one embodiment of the present invention, C in the CIE LCh color space of the light absorbing layer may be from 0 to 100, from 1 to 80, or from 1 to 60. [

In the present specification, the CIE LCh color space is a CIE Lab color space, where cylinder coordinates C * (saturation, relative color saturation (relative color saturation) instead of a *, b * of Cartesian coordinates saturation), L * (distance from the L axis) and h * (hue angle, hue angle in the CIE Lab color circle) were used.

In one embodiment of the present invention, the light absorbing layer preferably has a refractive index (n) of 0 to 8 at a wavelength of 400 nm, may be 0 to 7, may be 0.01 to 3, and may be 2 to 2.5 . The refractive index n can be calculated as sin? A / sin? B (? A is the angle of light incident from the surface of the light absorption layer, and? B is the refraction angle of light within the light absorption layer).

In one embodiment of the present invention, the light absorbing layer preferably has a refractive index (n) of 0 to 8 in a wavelength range of 380 nm to 780 nm, may be 0 to 7, may be 0.01 to 3, Lt; / RTI >

In one embodiment of the present invention, the light absorption layer has an extinction coefficient (k) of more than 0 and less than 4 at a wavelength of 400 nm, preferably 0.01 to 4, may be 0.01 to 3.5, may be 0.01 to 3 , 0.1 to 1. The extinction coefficient k is a value obtained by multiplying the reduction unit dI / I of the intensity of light per 1 m, i.e., the path unit length dx in the light absorption layer, by lambda / 4 pi, Where λ is the wavelength of light.

In one embodiment of the present invention, the light absorption layer has an extinction coefficient (k) of more than 0 and less than 4, preferably 0.01 to 4, more preferably 0.01 to 3.5, in a wavelength range of 380 nm to 780 nm, 3, and may be from 0.1 to 1. Since the extinction coefficient k is in the above range in the entire wavelength range of visible light of 400 nm, preferably 380 nm to 780 nm, it can act as a light absorbing layer within the visible light range.

The extinction coefficient k and refractive index n of silicon (Si) itself are shown in Fig. At a wavelength of 380 nm to 780 nm, the refractive index is 0 to 8 and the extinction coefficient is 0.1 to 1, specifically 0.4 to 0.8.

In one embodiment of the present invention, the light absorbing layer may be made of only silicon. The fact that the light absorbing layer is made of only silicon means that the component content of silicon (Si) is 98% or more, preferably 99% or more, or 100% as a result of analyzing components of the light absorbing layer.

FIG. 36 shows the simulation result of the color change according to the thickness variation of the light absorbing layer in the structure in which the light absorbing layer made of silicon oxide is formed instead of forming the light absorbing layer with only silicon (Si). It can be seen from FIG. 36 that the color change is due to the refractive index due to the influence of the silicon oxide not having the k value, and therefore, only the change in the similar color appears.

As described above, the principle that the light absorbing layer having the specific extinction coefficient and the refractive index express color and the color expression principle of the decorative member which expresses the color by adding the dye to the conventional substrate are different. For example, when a method of absorbing light by adding a dye to a resin is used, and when a material having the extinction coefficient as described above is used, the spectrum that absorbs light differs. When a dye is added to a resin to absorb light, the absorption wavelength band is fixed and only the absorption amount changes depending on the change in coating thickness. Further, in order to obtain a desired light absorption amount, a thickness variation of at least several micrometers is necessary in order to adjust the light absorption amount. On the other hand, in the case of a material having an extinction coefficient, the wavelength range of light to be absorbed varies even if the thickness changes to several tens or nanometers scale.

In addition, when a dye is added to a conventional resin, since only a specific color by the dye is expressed, it can not show various colors. On the other hand, the light absorbing layer of the present invention has an advantage that various colors can be exhibited by a light interference phenomenon without adding a dye by using a specific material other than a resin.

According to the above-described embodiments, light is absorbed in the incident path of the light and the reflecting mirror in the light absorbing layer, and the light is reflected at the surface of the light absorbing layer and at the interface between the light absorbing layer 301 and the light reflecting layer 201, The reflected light is subjected to reinforcement or destructive interference.

In this specification, light reflected at the surface of the light absorbing layer can be expressed as surface reflected light, and light reflected at the interface between the light absorbing layer and the light reflecting layer can be expressed as interface reflected light. Fig. 4 shows a schematic diagram of such a working principle. 4 shows a structure in which the substrate 101 is provided on the light reflection layer 201 side. However, the structure is not limited to such a structure, and the positions of the substrate 101 may be arranged at different positions.

In one embodiment of the present invention, the light absorbing layer may be a single layer, or may be a multilayer of two or more layers.

In one embodiment of the present invention, the light absorbing layer may further include one or two or more selected from the group consisting of a metal, a metalloid, and an oxide, a nitride, an oxynitride and a carbide of a metal or a metalloid. The oxide, nitride, oxynitride or carbide of the metal or metalloid can be formed by deposition conditions set by a person skilled in the art. The light absorbing layer may contain the same metal, semi-metal, two or more kinds of alloys or oxynitrides as the light reflecting layer.

In one embodiment of the present invention, the thickness T ₁ of the light absorbing layer may be determined according to a desired color in the final structure, and may be, for example, 10 nm or more and 300 nm or less, 11 nm or more and 40 nm or less, 111m or more and 100 nm or less, ≪ / RTI >

In one embodiment of the present invention, the light reflection layer is not particularly limited as long as it is a material capable of reflecting light, but the light reflectance can be determined depending on the material, and it is easy to implement colors at a light reflectance of 50% or more, for example. The light reflectance can be measured using an ellipsometer.

In one embodiment of the present disclosure, the light reflecting layer may be a metal layer, a metal oxide layer, a metal nitride layer, a metal oxynitride layer, or an inorganic layer. The light reflection layer may be formed of a single layer, or may be composed of two or more layers.

In one embodiment of the present disclosure, the light reflection layer is formed of a material selected from the group consisting of indium (In), titanium (Ti), tin (Sn), silicon (Si), germanium (Ge), aluminum (Al) Ni, vanadium, tungsten, tantalum, molybdenum, neodymium, iron, chromium, cobalt, gold and silver, Ag); Oxides thereof; Its nitride; Its oxynitrides; carbon; And a carbon composite material. The carbon nanofibers of the present invention can be used alone or in combination of two or more.

In one embodiment of the present disclosure, the light reflection layer may comprise two or more alloys selected from the above materials, oxides thereof, nitrides or oxynitrides.

In one embodiment of the present invention, the light reflecting layer is manufactured using an ink containing a carbon or carbon composite, thereby realizing a high-resistance reflecting layer. Examples of the carbon or carbon composite include carbon black and CNT.

In one embodiment of the present disclosure, the ink comprising the carbon or carbon composite material may include the above-described materials or oxides, nitrides or oxynitrides thereof, such as indium (In), titanium (Ti), tin ), Silicon (Si), germanium (Ge). Aluminum, aluminum, copper, nickel, vanadium, tungsten, tantalum, molybdenum, neodymium, iron, chromium, One or more oxides selected from cobalt (Co), gold (Au), and silver (Ag) may be included. After the ink containing the carbon or carbon composite is printed, a curing process may be further performed.

In one embodiment of the present invention, when the light reflection layer includes two or more kinds of materials, two or more kinds of materials may be formed by one process, for example, a deposition or printing method, A method may be used in which a layer is formed first and then a layer is formed thereon with one or more kinds of materials. For example, after depositing indium or tin to form a layer, an ink containing carbon may be printed and cured to form a light reflection layer. The ink may further include an oxide such as titanium oxide or silicon oxide.

In one embodiment of the present invention, the thickness of the light reflection layer may be determined according to a desired color in the final structure, and may be, for example, 1 nm or more and 100 nm or less, 10 nm or more and 90 nm or less, and 30 nm or more and 60 nm or less.

(Light absorption layer structure)

In one embodiment of the present invention, the light absorbing layer may exhibit various shapes by adjusting deposition conditions and the like at the time of forming the light absorbing layer.

In one embodiment of the present specification, the light absorbing layer includes two or more points having different thicknesses.

In one embodiment of the present invention, the light absorbing layer includes two or more regions having different thicknesses.

In one embodiment of the present specification, the light absorbing layer may include an inclined surface.

Examples of structures according to the above-described embodiment are shown in Figs. 5 and 6. Fig. 5 and 6 illustrate a structure in which the light reflection layer 201 and the light absorption layer 301 are laminated (not shown). According to Figs. 5 and 6, the light absorbing layer 301 has two or more points having different thicknesses from each other. According to Fig. 5, the thickness of the light absorbing layer 301 at the point A and the point B is different. According to Fig. 6, the thickness of the light absorbing layer 301 in the C region and the D region is different.

In one embodiment of the present invention, the light absorbing layer includes at least one region having an inclined surface whose top surface has an inclination angle of more than 0 degrees and not more than 90 degrees, and the light absorbing layer has a thickness different from that of the region having any one of the inclined surfaces And at least one region having a thickness. The inclined plane can be defined as an angle formed by a straight line included in the upper surface of the light absorption layer and a straight line parallel to the light reflection layer. For example, the inclination angle of the upper surface of the light absorbing layer of Fig. 5 may be about 20 degrees.

The surface characteristics such as the inclination of the upper surface of the light reflecting layer may be the same as the upper surface of the light absorbing layer. For example, the upper surface of the light absorbing layer may have the same inclination as the upper surface of the light reflecting layer by using the vapor deposition method when forming the light absorbing layer. However, the inclination of the upper surface of the light absorbing layer of Fig. 5 is different from the inclination of the upper surface of the light reflecting layer.

Fig. 7 illustrates the structure of a decorative member having a light absorbing layer whose top surface has an inclined surface. The thickness t1 of the light absorbing layer 301 in the E region and the thickness t2 in the F region are different from each other in the structure in which the substrate 101, the light reflecting layer 201 and the light absorbing layer 301 are laminated.

Fig. 7 relates to a light absorbing layer having a sloped surface facing each other, that is, a triangular section. As shown in FIG. 7, the thickness of the light absorbing layer may be varied on two surfaces of the triangular structure even if the deposition proceeds under the same conditions in the structure of the pattern having the inclined surfaces facing each other. As a result, a light absorbing layer having two or more regions having different thicknesses can be formed by only one step. Thus, the color hue differs depending on the thickness of the light absorbing layer. At this time, if the thickness of the light reflecting layer is more than a predetermined value, the color change is not affected.

7 shows a structure in which the substrate 101 is provided on the side of the light reflection layer 201. However, the structure is not limited to this structure, and the positions of the substrate 101 may be arranged at different positions as described above .

7 has a flat surface in contact with the light reflecting layer 201 and a surface of the base 101 in contact with the light reflecting layer 201 is a pattern having the same slope as the top surface of the light reflecting layer 201 Lt; / RTI > This is shown in FIG. In this case, the difference in the thickness of the light absorbing layer may also be caused by the difference in the inclination of the pattern of the base material. However, the present invention is not limited to this, and even if the substrate and the light absorbing layer have different slopes by using another vapor deposition method, the thickness of the light absorbing layer may be different on both sides of the pattern, and the dichroism described later can be exhibited.

In one embodiment of the present invention, the light absorbing layer includes at least one region whose thickness gradually changes. 9 illustrates a structure in which the thickness of the light absorbing layer 301 is gradually changed.

In one embodiment of the present invention, the light absorbing layer includes at least one region having an inclined surface whose top surface has an inclination angle of more than 0 degrees and not more than 90 degrees, and at least one of the regions having the inclined surfaces has a progressive . ≪ / RTI > Fig. 9 illustrates the structure of the light absorbing layer including a region having a sloped upper surface. Both the G region and the H region in Fig. 9 have a structure in which the upper surface of the light absorbing layer has an inclined surface and the thickness of the light absorbing layer gradually changes.

In the present specification, the structure in which the thickness of the light absorbing layer changes means that the cross section in the thickness direction of the light absorbing layer is a point (M1) having the smallest thickness of the light absorbing layer and a point , And the thickness of the light absorbing layer increases in accordance with the direction (M1-M2) with respect to the point where the thickness of the light absorbing layer at the smallest point of the light absorbing layer is the largest. At this time, the point where the thickness of the light absorption layer is the smallest and the point where the thickness of the light absorption layer is the largest may be any point on the interface with the light reflection layer of the light absorption layer.

In one embodiment of the present invention, the light absorbing layer includes a first region having a first inclined face whose inclination angle is within a range of 1 degree to 90 degrees, and the upper face is different from the first inclined face in the oblique direction, May have different inclined planes, or may further include two or more areas whose top surfaces are horizontal. At this time, the thicknesses of the light absorbing layers in the first region and the two or more regions may be different from each other.

(materials)

In one embodiment of the present invention, the decorative member includes a substrate provided on one side of the color developing layer and including a pattern layer.

In one embodiment of the present invention, the decorative member is a surface of the light reflection layer 201 facing the light absorption layer 301; Or a substrate 101 provided on at least one of the surfaces of the light absorbing layer facing the light reflecting layer. For example, the opposite surface of the light reflection layer opposite to the light absorption layer (Fig. 10 (a)); Or the substrate may be provided on the opposite side of the surface of the light absorbing layer facing the light reflection layer (Fig. 10 (b)).

In one embodiment of the present disclosure, the substrate may comprise a plastic substrate or a glass substrate for a cosmetic container. More specifically, the plastic molded article may be formed of at least one of polypropylene (PP), polystyrene (PS), polyvinyl acetate (PVAc), polyacrylate, polyethylene terephthalate (PET), polyvinyl chloride (PVA), ethylene-vinyl acetate copolymer (EVA), polycarbonate (PC), polyamide, and styrene-acrylonitrile copolymer But is not limited thereto.

In addition, the plastic molded article may be a flat plate-shaped plastic molded article having no bending (specific pattern), or may be a plastic molded article having a bending (specific pattern) shape.

The plastic injection can be produced by a plastic molding method. The plastic molding method includes compression molding, injection molding, air blow molding, thermoforming, hot melt molding, foam molding, and roll molding reinforced plastic molding. In the case of compression molding, the material is put into a mold, heated, and then pressure is applied. This is the oldest molding method and can be mainly used for molding a thermosetting resin such as phenol resin. The injection molding is a molding method in which a plastic melt is pushed out by a transporting machine and filled in a mold through a nozzle, and both of a thermoplastic resin and a thermosetting resin can be molded, which is the most widely used molding method. Currently, resin used in cosmetic case is SAN. The air blow molding is a method of molding a product by injecting air into a plastic parison at the center of the mold, and the production speed of the product is very fast due to a molding method of forming a plastic bottle or a small container.

In one embodiment of the present invention, the glass substrate may be glass having a transmittance of 80% or more.

In one embodiment of the present specification, the thickness of the substrate may be selected as required, and may range, for example, from 50 탆 to 200 탆.

In one embodiment of the present invention, the decorative member can be manufactured by forming a light reflecting layer on the substrate and a light absorbing layer provided on the light reflecting layer. More specifically, the decorative member can sequentially form a light absorbing layer and a light reflecting layer on a substrate by using a vapor deposition process or the like, and sequentially form a light reflecting layer and a light absorbing layer on the substrate using a vapor deposition process or the like But is not limited thereto.

(Color film)

In one embodiment of the present invention, the color developing layer further includes a color film.

In one embodiment of the present invention, the decorative member is a surface opposite to a surface of the light absorbing layer facing the light reflecting layer; Between the light absorbing layer and the light reflecting layer; Or a color film on the opposite surface of the light reflection layer against the light absorption layer. The color film may serve as a substrate. For example, it can be used as a color film by adding a dye or pigment to what can be used as a substrate.

In one embodiment of the present invention, the color film has L * a * b * on the color coordinate CIE L * a * b * of the color developing layer when the color film is present compared to the case where the color film is not provided Is not particularly limited as long as the color difference DELTA E ^* ab, which is the distance in the space of ^*

The color representation can be expressed as CIE L * a * b *, and the color difference can be defined using the distance (ΔE ^* ab) in the L * a * b * space. Specifically,

, And the observer can not recognize the color difference within the range of 0 < DELTA E ^* ab < 1 (Reference: Machine Graphics and Vision 20 (4): 383-411). Therefore, in this specification, the color difference due to the addition of the color film can be defined as DELTA E ^* ab > 1.

11 shows a color reproduction layer including a color film. FIG. 11A shows a structure in which a light reflection layer 201, a light absorption layer 301 and a color film 401 are sequentially laminated. a structure in which the light reflection layer 201, the color film 401 and the light absorption layer 301 are sequentially stacked on the light reflection film 201, the light reflection film 201, And the absorbing layer 301 are sequentially laminated.

In one embodiment of the present invention, the substrate is provided on the opposite surface of the light reflecting layer opposite to the light absorbing layer, and the color film is located on the opposite surface of the light reflecting layer opposite to the light absorbing layer , The color film is formed between the substrate and the light reflection layer; Or on the opposite surface of the substrate facing the light reflection layer. As another example, when the substrate is provided on the opposite surface of the light absorbing layer opposite to the light reflecting layer, and the color film is located on the opposite side of the light absorbing layer to the light reflecting layer, The color film being disposed between the substrate and the light absorbing layer; Or on the opposite surface of the substrate facing the light absorption layer.

In one embodiment of the present invention, a substrate is provided on the opposite surface of the light reflecting layer opposite to the light absorbing layer, and a color film is additionally provided. 12A shows a structure in which the color film 401 is provided on the opposite surface of the light absorbing layer 301 on the side of the light reflection layer 201. FIG. 12B shows a structure in which the color film 401 is provided on the light absorbing layer 301 A structure in which a color film 401 is provided between the light reflection layer 201 and the substrate 101 and a structure in which a color film 401 is provided between the light reflection layer 201 and the substrate 101 is shown in FIG. And a film 401 is provided on the opposite surface of the substrate 101 on the light reflection layer 201 side. In FIG. 13E, the color films 401a, 401b, 401c and 401d are respectively disposed on opposite sides of the light absorbing layer 301 on the light reflecting layer 201 side, between the light absorbing layer 301 and the light reflecting layer 201, But the present invention is not limited thereto and the color films 401a, 401b, 401c, and 401c may be formed on the opposite surfaces of the reflective layer 201 and the substrate 101, 401d may be omitted.

In one embodiment of the present invention, a substrate is provided on the opposite surface of the light absorbing layer opposite to the light reflection layer, and a color film is additionally provided. 13A shows a structure in which the color film 401 is provided on the opposite surface of the substrate 101 on the side of the light absorbing layer 301. FIG. 13B shows a structure in which the color film 401 is provided on the substrate 101 A structure in which the color film 401 is provided between the light absorbing layer 301 and the light reflecting layer 201 is shown in Figure 13C and a structure in which the color film 401 is provided between the light absorbing layer 301 and the light reflecting layer 201, (401) is provided on the opposite surface of the light reflection layer (201) on the side of the light absorption layer (301). The color films 401a, 401b, 401c and 401d are formed on the opposite side of the substrate 101 on the light absorbing layer 301 side, between the substrate 101 and the light absorbing layer 301, The present invention is not limited thereto and the color films 401a, 401b, and 401c (not shown in the drawings) may be used as the light reflection layer 201 , And 401d may be omitted.

12 (b) and 13 (c), when the visible light transmittance of the color film is more than 0%, light incident through the color reflecting layer can be reflected by the color reflecting layer, Color can be realized.

12 (c), 12 (d), and 13 (d), in order to recognize a color difference change due to the addition of a color film, light of a color expressed from the color film of the light reflection layer 201 It is preferable that the transmittance is 1% or more, preferably 3% or more, and more preferably 5% or more. This is because the transmitted light can be mixed with the color of the color film in the visible light transmittance range.

In one embodiment of the present invention, the color film may be provided in a state in which one color film or two or more kinds of color films are stacked.

The color film may be combined with the color developed from the above-described laminated structure of the light reflection layer and the light absorption layer to exhibit a desired color. For example, a color film may be used in which one or more of pigments and dyes are dispersed in the matrix resin to exhibit color. The color film may be formed by coating a composition for forming a color film directly at a position where the color film may be provided, or may be formed by coating a composition for forming a color film on a separate substrate, Method is used to manufacture a color film, and then a color film is placed or adhered to a position where the color film can be provided. The coating method may be a wet coating or a dry coating.

The pigments and dyes that can be included in the color film may be selected from those known in the art as being capable of achieving a desired color from the final decorative member, and may be selected from red, yellow, purple, And pigments and dyes such as pigments, pigments, pigments, pigments, etc. Specific examples thereof include perinone red dyes, anthraquinone dyes, anthraquinone dyes, methine dyes, anthraquinone dyes, anthraquinone dyes, phthalocyanine dyes, thioindigo dyes, isoindigo dyes, Dyes such as isoxindigo-based pink dyes may be used alone or in combination. Carbon black, copper phthalocyanine (CI Pigment Blue 15: 3), C.I. Pigment Red 112, Pigment blue, and Isoindoline yellow may be used alone or in combination. Commercially available materials such as dyes or pigments may be used. For example, materials such as Ciba ORACET Co., Ltd. or Chohwa Paint Co., Ltd. can be used. The types of the dyes or pigments and their hue are merely examples, and known dyes or pigments can be used in various ways, thereby realizing more various colors.

As the matrix resin included in the color film, materials known as materials such as a transparent film, a primer layer, an adhesive layer, and a coating layer can be used, and the material is not particularly limited thereto. For example, a variety of materials such as an acrylic resin, a polyethylene terephthalate resin, a urethane resin, a linear olefin resin, a cycloolefin resin, an epoxy resin, and a triacetylcellulose resin may be selected. Mixtures may also be used.

(A), (b), (a), (b), and (c) of FIG. 12, when the color film is disposed closer to the position where the decorative member is observed than the light reflection layer or the light absorption layer, ), The color film has a light transmittance of not less than 1%, preferably not less than 3%, more preferably not less than 5%, which is expressed from the light reflection layer, the light absorption layer or the laminated structure of the light reflection layer and the light absorption layer desirable. Thus, hues expressed from the color film and the light reflected from the light reflecting layer, the light absorbing layer, or the laminated structure thereof can be combined together to achieve a desired color.

The thickness of the color film is not particularly limited and can be selected by a person having ordinary knowledge in the art as long as it can exhibit a desired color. For example, the thickness of the color film may be 500 nm to 1 mm.

(Pattern layer)

In one embodiment of the present invention, the substrate includes a pattern layer, and the pattern layer is provided adjacent to the color reproduction layer.

In this specification, the fact that the pattern layer is provided adjacent to the color developing layer means that the pattern layer is in direct contact with the color developing layer. For example, the pattern layer may be in direct contact with the light reflection layer of the color reproduction layer, or the pattern layer may be in direct contact with the light absorption layer of the color reproduction layer.

In one embodiment of the present invention, the pattern layer includes a convex portion or a concave portion having an asymmetrical cross section.

In one embodiment of the present specification, the pattern layer includes a convex shape having an asymmetrical cross section.

In one embodiment of the present specification, the pattern layer includes a concave shape having an asymmetrical cross section.

In one embodiment of the present invention, the pattern layer includes a convex portion having an asymmetrical cross-section and a concave portion having an asymmetrical cross-section.

In the present specification, the term "cross-section" means a surface when the convex portion or concave portion is cut in one direction. For example, the cross section may mean a plane when the convex portion or the concave portion is cut in a direction parallel to the paper surface or perpendicular to the paper surface when the decorative member is placed on a paper surface. Wherein the convex portion or the concave portion-shaped surface of the pattern layer of the decorative member according to the above-described embodiment has an asymmetric structure in at least one of the cross sections in the direction perpendicular to the paper surface.

In the present specification, the term " asymmetric cross section "means that the figure composed of the rim of the cross section has a structure that does not have line symmetry or point symmetry. Linear symmetry refers to a feature that overlaps when a figure is symmetrically centered on a straight line. Point symmetry means that when a figure is rotated 180 degrees from one point, it has a symmetrical property completely overlapping the original figure. Here, the rim of the cross section of the asymmetric structure may be a straight line, a curve, or a combination thereof.

In one embodiment of the present invention, the shape of the convex portion or the concave portion having the asymmetric cross section includes at least two sides having different inclination angles, different degrees of curvature, or different sides. For example, when two sides of at least one section constituting the cross section have different inclination angles, different degrees of curvature, or different sides, the convex section or the concave section has an asymmetric structure.

As described above, the decorative member can exhibit dichroism by the convex portion or the concave portion having the asymmetric cross-section included in the surface of the pattern layer. Dichroism means that different colors are observed depending on the viewing angle. The color representation can be expressed as CIE L * a * b *, and the color difference can be defined using the distance (ΔE ^* ab) in the L * a * b * space. Specifically, the color difference

, And the observer can not recognize the color difference within the range of 0 <? E ^* ab <1 (Reference: Machine Graphics and Vision 20 (4): 383-411). Therefore, in the present specification, dichroism can be defined as DELTA E ^* ab > 1.

In one embodiment of the present invention, the color developing layer has a dichroism of DELTA E * ab > 1. Specifically, the chrominance DELTA E ^* ab, which is the distance in the space of L * a * b * on the chromaticity coordinates CIE L * a * b * of the color reproduction layer, may exceed 1.

In one embodiment of the present specification, the decorative member has a dichroism of DELTA E * ab > 1. Specifically, the color difference DELTA E ^* ab, which is the distance in the space of L * a * b * on the color coordinate system CIE L * a * b * in the entire decorative member, may exceed one.

In one embodiment of the present invention, the shape of the convex portion or the concave portion includes a first inclined surface and a second inclined surface having different inclination angles.

In one embodiment of the present invention, the shape of the convex portion or the concave portion includes a first inclined side and a second inclined side at least one of which the inclination angle is different from each other. The shapes of the first inclined side and the second inclined side are the same or different from each other, and each is a straight line or a curved line.

In one embodiment of the present disclosure, the rim of the cross section of the asymmetric structure is a straight line, a curve, or a combination thereof.

Fig. 14 shows that the shapes of the first inclined sides and the second inclined sides are linear. Each convex shape includes a first region D1 including a first inclined side and a second region D2 including a second inclined side. The first oblique side and the second oblique side are in a linear shape. The angle c3 formed by the first inclined side and the second inclined side may be from 75 degrees to 105 degrees. The angle c1 formed by the first inclined side and the ground (base) is different from the angle c2 formed by the second inclined side and the ground. For example, the combination of c1 and c2 may be 20 degrees / 80 degrees, 10 degrees / 70 degrees, or 30 degrees / 70 degrees.

15 shows that the shape of the first oblique side or the second oblique side is a curved shape. The cross section of the pattern layer has a convex shape, and the convex cross-section includes a first area E1 including a first inclined side and a second area E2 including a second inclined side. At least one of the first inclined side and the second inclined side may be curved. For example, both the first inclined sides and the second inclined sides may be curved, the first inclined sides may be linear, and the second inclined sides may be curved. When the first inclined side is a linear shape and the second inclined side is a curved shape, the angle c1 may be larger than the angle c2. Fig. 15 shows that the first inclined side is in a linear shape and the second inclined side is in a curved shape. The angle formed by the curved slope with the ground surface can be calculated from the angle formed by the straight line and the ground surface when an arbitrary straight line is drawn from the point where the slope side contacts the ground surface to the point where the first slope side contacts the second slope side . The curved second inclined sides may have different degrees of curvature depending on the height of the pattern layer, and the curved line may have a radius of curvature. The radius of curvature may be 10 times or less the width (E1 + E2) of the convex shape. 15 (a) shows that the radius of curvature of the curve is twice the width of the convex portion, and Fig. 15 (b) shows that the radius of curvature of the curve is one times the width of the convex portion. The ratio of the curvature portion E2 to the width E1 + E2 of the convex portion may be 90% or less. 15A and 15B show that the ratio of the curved portion E2 to the width E1 + E2 of the convex portion is 60%.

In this specification, the inclination angle of the inclined side can be handled the same as the inclination angle of the inclined side.

In this specification, the term "sides" may be a straight line, but is not limited thereto, and may be a curve in whole or in part. For example, the sides may include structures such as a circle, a part of an arc of an ellipse, a wave structure, a zigzag, and the like.

In the present specification, when a circle or an ellipse includes a part of the arc of the mutation source or the ellipse, the circle or the ellipse may have a radius of curvature (radius of curvature). The radius of curvature can be defined as the radius of an arc when converting an extremely short section of the curve into an arc.

In this specification, the inclination angle of the convex portion may mean an angle formed by the inclined plane of the convex portion and the horizontal plane of the pattern layer. The first inclined surface may be defined as a left inclined surface of the convex portion and the second inclined surface may be defined as a right inclined surface of the convex portion.

In the drawings, the first inclined side can be defined as the left inclined side of the convex portion, and the second inclined side can mean the right side inclined side of the convex portion.

In this specification, unless otherwise stated, the term "inclined side " means a side having an angle of 0 degrees or more and 90 degrees or less with respect to the ground when the decorative member is placed on the ground. In this case, when the side is a straight line, the angle between the straight line and the ground can be measured. When the decorative member is placed on the ground, an angle between a point nearest to the ground surface and a straight line connecting the point farthest from the ground surface to the ground surface is measured to the ground surface .

In this specification, unless otherwise stated, the term "inclined surface " means a surface having an angle formed by a surface with respect to the ground surface of 0 DEG to 90 DEG, when the decorative member is placed on the ground surface. At this time, when the surface is plane, the angle between the plane and the ground can be measured. When the decorative member is placed on the ground, an angle between a point nearest to the surface of the surface and a straight line connecting the point farthest from the surface of the surface at the shortest distance to the ground surface is measured .

In this specification, unless otherwise stated, the term "inclination angle " refers to an angle formed between the decorative member on the surface of the decorative sheet and the surface or the surface of the sheet constituting the pattern layer. (A'-b ') generated when a point (a') contacting the surface constituting the pattern layer or the surface of the variable layer and a point (b ') farthest from the surface constituting the pattern layer or the surface of the variable layer are connected to each other, ) And the ground surface.

In this specification, unless otherwise stated, the term "curvature" refers to the degree of change in the slope of the tangent at successive points on a side or face. The greater the change in the slope of the tangent at successive points on the sides or sides, the greater the degree of curvature.

In the present specification, the convex portion may be in the shape of a convex portion, and the concave portion may be in the shape of a concave portion. The convex unit shape or the concave unit shape means a shape including two inclined sides (first inclined sides and second inclined sides) and not a shape including three or more inclined sides. Referring to Fig. 18, the convex portion P1 of the circle C1 has one convex portion unit shape including the first oblique side and the second oblique side. However, the shape contained in the circle C2 includes two convex unit pieces. The first inclined side may be defined as a left inclined side of the convex portion or the concave portion, and the second inclined side may mean the right side inclined side of the convex portion or the concave portion.

In one embodiment of the present disclosure, the angle formed by the first inclined side and the second inclined side may be in a range of 80 degrees to 100 degrees. The angle may be specifically greater than 80 degrees, greater than 83 degrees, greater than 86 degrees, or greater than 89 degrees, less than 100 degrees, less than 97 degrees, less than 94 degrees, or less than 91 degrees. The angle may mean the angle of the vertex including the first inclined side and the second inclined side. If the first inclined side and the second inclined side do not form a vertex, it may mean the angle of the vertex in which the first inclined side and the second inclined side are virtually extended to form a vertex.

In one embodiment of the present invention, the difference between the inclination angle of the first inclined side of the convex portion and the inclination angle of the second inclined side may be within the range of 30 degrees to 70 degrees. The difference between the inclination angle of the first inclined side and the inclination angle of the second inclined side may be, for example, 30 degrees or more, 35 degrees or more, 40 degrees or 45 degrees, 70 degrees or less, 65 degrees or less, Or less. If the difference between the inclination angle of the first inclined side and the inclined side of the second inclined side is within the above range, it may be advantageous in terms of implementation of the color expression according to the direction. That is, when the difference between the inclination angles of the inclined sides is within the above range, the thickness of the light absorbing layer formed on the first inclined sides and the second inclined sides may be different, (See Table 2 below).

Difference in the inclination angle of the first inclined side and the second inclined side	First ramp side			Second ramp side			△ E * ab
	L 1 *	a 1 *	b 1 *	L 2 *	a 2 *	b 2 *
0	25.6	1.2	-1.3	23.8	1.4	-1.8	1.9
10	25.6	1.2	-1.3	24.0	1.4	-2.6	2.1
20	25.6	1.2	-1.3	24.9	0.8	-2.4	1.4
30	34.6	1.1	-5.7	23.8	1.1	-1.1	11.7
40	34.0	1.1	-5.7	23.8	1.1	-1.1	11.2
50	38.1	0.8	-6.3	24.0	1.1	-1.1	15.0
60	39.2	1.2	-6.9	23.8	1.1	-1.1	16.5

In one embodiment of the present disclosure, the convex or concave section may be in the form of a triangular or quadrangular polygonal shape. 16 shows that the shape of the convex portion is a rectangular shape. The rectangular shape may be a general rectangular shape and is not particularly limited as long as the inclination angles of the respective inclined sides are different from each other. The square shape may be a shape that partially cuts off the triangle. For example, a pair of faeces may be in the form of a rectangle having a parallel quadrangle, or a rectangle having no pair of mutually parallel faeces. The convex shape includes a first region F1 including a first inclined side, a second region F2 including a second inclined side, and a third region F3 including a third inclined side. The third inclined side may be parallel to the ground, or may not be parallel. For example, if the rectangular shape is trapezoidal, the third inclined side is parallel to the ground. At least one of the first slant sides to the third slant sides may be a curved shape, and the content of the curved shape is the same as described above. The total length of F1 + F2 + F3 can be defined as the convex-shaped pitch.

19 shows a method of determining the shape of the convex portion. For example, the convex shape may be a shape obtained by removing a specific area of the ABO1 triangle shape. A method for determining the specific area to be removed is as follows. The contents of the inclination angles c1 and c2 are the same as those described above.

1) Set an arbitrary point P1 on AO1 line segment dividing AO1 line segment by L1: L2 ratio.

2) Set an arbitrary point P2 on BO1 line segment that divides BO1 line segment by m1: m2 ratio.

3) Set an arbitrary point O2 on the AB segment that divides the AB segment by the ratio n1: n2.

4) Set an arbitrary point P3 on the O1O2 line segment that divides the O2O1 line segment by the o1: o2 ratio.

In this case, the ratios of L1: L2, m1: m2, n1: n2 and o1: o2 may be the same or different and independently from 1: 1000 to 1000: 1.

5) Remove the area of P1O1P2P3 polygon.

6) The shape of the ABP2P3P1 polygon is taken as the section of the convexity.

The convex shape can be modified into various shapes by controlling the ratio of L1: L2, m1: m2, n1: n2 and o1: o2. For example, when L1 and m1 are large, the height of the pattern can be increased, and when o1 is large, the height of the concave portion formed on the convex portion can be made small, and by adjusting the ratio of n1, The position of the lowest point of the concave portion can be adjusted close to either one of the inclined sides of the convex portion.

When the L1: L2, m1: m2, and o1: o2 ratios are all the same, the shape of the cross section may be trapezoidal (Fig. 20 (a)). The heights ha and hb of the trapezoid can be varied by adjusting the ratio of L1: L2. For example, FIG. 20 (a) shows a case where the ratio of L1: L2 is 1: 1, the ratio of L1: L2 is 2: 1, the ratio of m1: m2 is 1: 1 , and o1: o2 ratio of 1: 8, respectively.

In one embodiment of the present invention, the shape of the convex portion or the concave portion includes two or more convex portions or concave portions. As described above, by having two or more convex portions or concave portions, the dichroism can be further increased. At this time, the shape of the convex portion or the concave portion of two or more may be a shape in which the same shape is repeated, but different shapes may be included. This is shown in FIG. 21 to FIG.

21 shows that two or more different convex shapes are alternately arranged. And a second convex portion P2 having a height smaller than that of the convex portion is disposed between the convex portions P1. Hereinafter, the convex portion previously described before the second convex portion may be referred to as the first convex portion.

Fig. 22 shows that concave portions are included between two or more convex shapes. The surface of the pattern layer may have a shape including a concave portion P3 having a height smaller than that of the convex portion at a tip portion (pointed portion) of the convex portion P1. Such a decoration member can exhibit an effect that the color of the image is changed depending on the viewing angle.

Fig. 23 may be one in which each shape is arranged in a reversed phase structure. As described above, the pattern layer may include a convex portion or a concave portion, and each shape may be arranged in a reversed phase structure.

Specifically, as shown in FIG. 23 (a), the surface of the pattern layer may have a shape in which a plurality of convex portions are arranged in a reversed phase structure of 180 degrees. Specifically, the surface of the pattern layer may include a first region C1 having a larger inclination angle of the second inclined plane than the first inclined plane, and a second region C2 having a larger inclination angle of the second inclined plane than the first inclined plane . In one example, the convex portion included in the first region may be referred to as a first convex portion P1, and the convex portion included in the second region may be referred to as a fourth convex portion P4. The height, the width, the inclination angle, and the angle formed by the first and second inclined surfaces of the first and second convex portions P1 and P4 may be the same as those described in the item of the convex portion P1 have.

As shown in FIG. 23 (b), any one of the first region and the second region may correspond to an image or a logo, and the other region may correspond to a background portion. Such a decoration member can exhibit an effect that the image or logo color is varied depending on the viewing angle. In addition, the image or logo part and the base part can show the decorative effect that the color changes according to the viewing direction.

The first region and the second region may each include a plurality of convex portions. The widths and the number of convexities of the first region and the second region may be appropriately adjusted in consideration of the size of the desired image or logo.

In one embodiment of the present invention, the pattern layer includes at least two convex portions, and may further include a flat portion at a portion or all of the convex portions.

According to Fig. 17, the flat portion G1 may be included between the convex portions of the pattern layer. The flat portion means a region where no convex portion exists. The description of the remaining components D1, D2, c1, c2, c3, the first inclined sides and the second inclined sides is the same as described above, except that the pattern layer further includes the flat part. On the other hand, the total length of D1 + D2 + G1 is defined as the pitch of the pattern, which is different from the width of the pattern described above.

The height H1 of the convex portion P1 may be 5 占 퐉 to 30 占 퐉. If the height of the convex portion is within the above range, it may be advantageous in terms of production process. In this specification, the height of the convex portion may mean the shortest distance between the highest portion and the lowest portion of the convex portion with respect to the horizontal plane of the pattern layer. The same numerical range can be applied to the depth of the concave portion described above with respect to the height of the convex portion.

The width W1 of the convex portion P1 may be 10 占 퐉 to 90 占 퐉. When the width of the convex portion is within the above range, it may be advantageous from the viewpoint of processing and forming the pattern. The width W1 of the convex portion P1 may be, for example, 10 占 퐉 or more, 15 占 퐉 or more, 20 占 퐉 or 25 占 퐉 or more, 90 占 퐉 or less, 80 占 퐉 or less, 70 占 퐉 or less, Mu m or less, 40 mu m or less, or 35 mu m or less. The description related to this width can be applied not only to the convex portion but also to the above-mentioned concave portion.

The distance between the convex portions P1 may be 0 占 퐉 to 20 占 퐉. In this specification, the distance between the convex portions may mean the shortest distance between the point where one convex portion ends and the point where another convex portion starts, in two adjacent convex portions. When the distance between the convex portions is appropriately maintained, it is possible to improve the phenomenon that the decorative region is relatively bright when viewed from the inclined side having a larger inclination angle of the convex portion, and the reflection region is dark due to the shading. Between the convex portions, there may be a second convex portion having a smaller height than the convex portions, as described later. The description related to this gap can be applied not only to the convex portion but also to the concave portion described above.

The height H2 of the second convex portion P2 may range from 1/5 to 1/4 of the height H1 of the first convex portion P1. For example, the difference (H1-H2) between the height of the first convex portion and the height of the second convex portion may be 10 mu m to 30 mu m. The width W2 of the second convex portion may be 1 탆 to 10 탆. The width W2 of the second convex portion may be specifically 1 mu m or more, 2 mu m or more, 3 mu m or more, 4 mu m or more, or 4.5 mu m or more, 10 mu m or less, 9 mu m or less, 6 mu m or less or 5.5 mu m or less.

In one embodiment of the present invention, the second convex portion may have two inclined surfaces (S3, S4) whose inclination angles are different from each other. The angle (a4) formed by the two inclined surfaces of the second convex portion may be 20 degrees to 100 degrees. The angle a4 may be more than 20 degrees, more than 30 degrees, more than 40 degrees, more than 50 degrees, more than 60 degrees, more than 70 degrees, more than 80 degrees, more than 85 degrees, less than 100 degrees or less than 95 degrees have. The difference (a6-a5) between the inclination angles of the both inclined surfaces of the second convex portion may be 0 degree to 60 degrees. The difference (a6-a5) of the inclination angles may be 0 degree or more, 10 degrees or more, 20 degrees or more, 30 degrees or more, 40 degrees or more or 45 degrees or more, 60 degrees or less or 55 degrees or less. If the dimension of the second convex portion is within the above range, it may be advantageous in that a light color can be formed by increasing the inflow of light at a side having a large inclined angle.

In one embodiment of the present invention, the height H3 of the concave portion P3 may be 3 탆 to 15 탆. The height H3 of the concave portion P3 may be specifically 3 mu m or more, 15 mu m or less, 10 mu m or less, and 5 mu m or less. The concave portion may have two inclined surfaces S5 and S6 having different inclination angles. The angle (a7) formed by the two inclined surfaces of the concave portion may be 20 degrees to 100 degrees. The angle a7 may be more than 20 degrees, more than 30 degrees, more than 40 degrees, more than 50 degrees, more than 60 degrees, more than 70 degrees, more than 80 degrees or more than 85 degrees, less than 100 degrees or less than 95 degrees have. The difference (a9-a8) between the inclination angles of the inclined surfaces of the concave portion may be 0 degree to 60 degrees. The difference (a9-a8) of the inclination angles may be 0 degree or more, 10 degrees or more, 20 degrees or more, 30 degrees or more, 40 degrees or more or 45 degrees or more, 60 degrees or less or 55 degrees or less. When the dimension of the concave portion is within the above range, it is advantageous in that coloring can be added to the mirror surface.

In one embodiment of the present invention, the convex portion or the concave portion shape of the surface of the pattern layer may be a cone-shaped convex portion protruding outside the surface of the pattern layer, or a cone- may be a cone-shaped recess.

In one embodiment of the present disclosure, the cone shape includes a cone, a cone, or a polygonal shape. Here, the shape of the bottom surface of a polygonal horn is triangular, square, and star shape with five or more protruding points. According to one example, when the decorative member is placed on the ground, if the surface of the pattern layer has a cone-shaped convex shape, at least one of the convex-shaped vertical cross-sections to the ground may be triangular . According to another example, when the decorative member is placed on the ground, if the surface of the pattern layer has a cone-shaped concave shape, at least one of the vertical cross-sections with respect to the ground surface of the concave- Lt; / RTI &gt;

In one embodiment of the present invention, the convex portion of the cone shape or the concave shape of the cone shape may have at least one asymmetrical cross section. For example, when the convex portion or the concave portion of the cone shape is observed on the surface side of the convex portion or the concave portion, when two or less of the same shapes exist when the cone is rotated 360 degrees with respect to the vertex of the cone, It is advantageous to be expressed. Fig. 24 shows a cone-shaped convex shape viewed from the convex-shaped surface side. Fig. 24 (a) shows a cone shape of a symmetrical structure, and Fig. 24 .

When the decorative member is placed on the ground, the cone shape of the symmetrical structure is a regular polygonal shape in which the cross section in a direction horizontal to the ground (hereinafter referred to as horizontal cross section) is a circle or the length of each side is the same, Is a line existing perpendicular to the section of the center of gravity of the horizontal cross section. However, a cone shape having an asymmetric cross-section is present on the vertical line of a point that is not the center of gravity of the cone's horizontal cross-section when the cone's vertex position is observed on the surface side of the cone- Or a horizontal cross section of the cone is a polygon or an ellipse of an asymmetric structure. When the horizontal cross section of the cone is a polygon having an asymmetric structure, at least one of the sides or angles of the polygon can be designed differently from the rest.

For example, as shown in Fig. 25, the position of the vertex of the cone can be changed. Concretely, when the vertex of the cone is designed to be located on the vertical line of the center of gravity 01 of the horizontal cross section with respect to the ground of the cone when observed from the surface of the cone-shaped convex portion as shown in the first figure of Fig. 25, Four degrees of symmetry can be obtained when rotating the cone by 360 degrees from the vertex of the cone. However, the symmetrical structure is broken by designing the vertex of the cone at the position 02 instead of the center of gravity 01 of the horizontal cross section with respect to the ground. The length of one side of the horizontal section relative to the ground is x, the moving distance of the vertex of the cone is a and b, and the height of the cone, which is the length of the line vertically connecting the vertex (01 or 02) h, and the angle formed by the horizontal cross section and the side surface of the cone is denoted by? n, the cosine value can be obtained for the plane 1, plane 2, plane 3, and plane 4 in FIG. 25 as follows.

At this time, since? 1 and? 2 are the same, there is no dichroism. However,? 3 and? 4 are different, and? 3 -? 4 denotes a color difference (? E * ab) between the two colors, so that dichroism can be exhibited. Here, |? 3 -? 4 |> 0. As described above, the degree of asymmetry can be quantitatively expressed by how much the symmetry structure is broken by using the angle formed by the horizontal section and the side surface of the cone with respect to the paper surface. The numerical value showing the degree of such asymmetry is the color difference of dichroism It is proportional.

26 (a) and 26 (b) illustrate a surface having a convex portion having a line shape at the highest point, wherein (a) illustrates a pattern having convex portions that do not exhibit dichroism, Pattern. &Lt; / RTI &gt; 26A is an isosceles triangle or an equilateral triangle, and the Y-Y 'cross section of FIG. 26B is a triangle having side lengths different from each other.

In one embodiment of the present invention, the pattern layer has a concave-shaped surface having a line-shaped convex portion or a line-shaped convex portion at the highest point. The line shape may be a linear shape, a curved shape, a curved line, a straight line, or a zigzag shape. This is shown in Figs. 27 to 29. When the surface of the convex portion having the line shape of the highest point or the concave portion having the line shape of the lowest point is observed on the surface side of the convex portion or the concave portion, the center of gravity of the horizontal cross- It is advantageous to develop dichroism when only one identical form exists when rotating 360 degrees by reference.

In one embodiment of the present invention, the pattern layer has a convex portion or a concave-shaped surface of a cone-shaped structure in which a cone-shaped tip portion is cut out. Fig. 30 shows a photograph in which an inverted trapezoidal concave portion having an asymmetrical cross section perpendicular to the paper surface when the decorative member is placed on the ground is shown. Such an asymmetric cross section may be in a trapezoidal or inverted trapezoidal shape. Even in this case, dichroism can be expressed by the cross section of the asymmetric structure.

In addition to the structures illustrated above, various convex or concave surfaces as shown in FIG. 31 may be implemented.

In this specification, the term "surface" may be planar, but is not limited thereto, and may be all or part of a curved surface, unless otherwise stated. For example, the shape of the cross section in the direction perpendicular to the plane may include a structure of a circle, a part of the arc of the ellipse, a wave structure, a zigzag structure, and the like.

In this specification, unless otherwise stated, the term "inclined surface " means a surface having an angle formed by a surface with respect to the ground surface of 0 DEG to 90 DEG, when the decorative member is placed on the ground surface. At this time, when the surface is plane, the angle between the plane and the ground can be measured. When the decorative member is placed on the ground, an angle between a point nearest to the surface of the surface and a straight line connecting the point farthest from the surface of the surface at the shortest distance to the ground surface is measured .

In one embodiment of the present invention, the pattern layer includes a pattern of a symmetric structure. The symmetric structure includes a prism structure, a lenticular lens structure, and the like.

In one embodiment of the present invention, the decorative member includes a surface facing the light reflection layer of the light absorption layer; Between the light absorbing layer and the light reflecting layer; Or a pattern layer including a convex portion or a concave portion having a cross section of an asymmetric structure on a surface of the light reflection layer facing the light absorption layer.

In one embodiment of the present invention, the pattern layer has a flat portion on the surface opposite to the surface on which the convex portion or the concave portion is formed, and the flat portion may be formed on the substrate. A plastic substrate may be used as the substrate layer. Plastic substrates include TAC (triacetyl cellulose); A cycloolefin copolymer (COP) such as a norbornene derivative; Poly (methyl methacrylate), PC (polycarbonate), polyethylene (PE), polypropylene (PVP), polyvinyl alcohol (PVA), diacetyl cellulose (DAC), polyacrylate (PAC), polyether sulfone (PES) ), PPS (polyarylate), amorphous fluorine resin, or the like can be used, but the present invention is not limited thereto, and it is possible to use a polyimide no.

In one embodiment of the present invention, the pattern layer may include a thermosetting resin or an ultraviolet ray curing resin. As the curable resin, a photo-curable resin or a thermosetting resin can be used. As the photocurable resin, an ultraviolet curing resin may be used. As the thermosetting resin, for example, a silicone resin, a silicon resin, a flan resin, a polyurethane resin, an epoxy resin, an amino resin, a phenol resin, a urea resin, a polyester resin or a melamine resin may be used, . The ultraviolet ray curable resin is typically an acrylic polymer such as a polyester acrylate polymer, a polystyrene acrylate polymer, an epoxy acrylate polymer, a polyurethane acrylate polymer or a polybutadiene acrylate polymer, a silicone acrylate polymer or an alkyl acrylate Polymers, and the like, but are not limited thereto.

In one embodiment of the present invention, a color dye may be further included in the pattern layer or on at least one side of the pattern layer. The inclusion of a colored dye on at least one side of the pattern layer may mean, for example, the case where the above-mentioned base layer provided on the flat side of the pattern layer contains a colored dye.

In one embodiment of the present invention, the colored dyes include anthraquinone dyes, phthalocyanine dyes, thioindigo dyes, perinone dyes, isoxindigo dyes, Based dyes, methane-based dyes, monoazo-based dyes, and 1: 2 metal complex-based dyes.

In one embodiment of the present invention, when the pattern layer contains a colored dye, the dye may be added to the curable resin. When the dye layer is further included in the lower part of the pattern layer, the dye layer may be coated on the upper or lower surface of the substrate layer.

In one embodiment of the present invention, the content of the colored dye may be, for example, 0 to 50 wt%. The content of the colored dyes can determine the transmittance and the haze range of the pattern layer or decorative member, and the transmittance can be, for example, 20% to 90%, and the haze can be, for example, 1% to 40%.

In one embodiment of the present invention, the color-developing layer can impart a metallic texture and a sense of depth to the decorative member when viewed. The color developing layer may be displayed in various colors depending on an angle of view of the image of the decorative member. This is because the wavelength of light reflected from the surface of the inorganic layer passing through the pattern layer changes according to the wavelength of incident light.

The color developing layer may have the same convex or concave portion as the surface of the above-mentioned pattern layer. The color developing layer may have the same inclination as the surface of the pattern layer described above.

In one embodiment of the present specification, the decorative member is provided between the substrate and the color developing layer; A surface of the color developing layer facing the substrate; Or a protective layer provided on a surface of the substrate opposite to the color developing layer.

In one embodiment of the present invention, the decorative member is disposed between the substrate and the pattern layer, between the pattern layer and the light reflection layer, between the light reflection layer and the light absorption layer, and between the light reflection layer and the light reflection layer And a protective layer provided on at least one of the opposite surfaces. That is, the protective layer is provided between each layer of the decorative member or at the outermost edge of the decorative member, thereby protecting the decorative member.

As used herein, "protective layer" means a layer capable of protecting other layers of the decorative member, unless otherwise defined. For example, it is possible to prevent the inorganic layer from being deteriorated in a moisture-resistant or heat-resistant environment. Alternatively, scratches on the inorganic layer or the pattern layer due to external factors are effectively suppressed, so that the dichroism of the decorative member can be effectively expressed.

In this specification, the term "inorganic layer" means a light absorbing layer or a light reflecting layer unless otherwise defined.

In this specification, an example of the decorative member structure including the protective layer is as follows.

For example, it may have a structure of substrate / protective layer / pattern layer / light reflecting layer / light absorbing layer / protective layer or substrate / protective layer / pattern layer / light absorbing layer / light reflecting layer / protective layer.

In one embodiment of the present disclosure, the protective layer comprises aluminum oxynitride. By including the aluminum oxynitride (AlON) in the protective layer, the function of the protective layer described later can be enhanced compared with the case where the protective layer does not contain aluminum oxynitride (AlON). Further, when the ratio of each element of the aluminum oxynitride is adjusted, the protective function can be further improved.

In one embodiment of the present invention, the decorative member further includes a protective layer, so that damage to the pattern layer and the inorganic layer is suppressed even if the decorative member is left in a high temperature and high humidity environment, so that excellent decorative effect can be maintained even in a harsh environment.

The decorative member of the present specification can be applied to a known object requiring application. For example, portable electronic devices, electronic products, cosmetic containers, furniture, building materials, and the like.

The method of applying the decorative member to a portable electronic device, an electronic product, a cosmetic container, a furniture, a building material, etc. is not particularly limited, and a known method known as a method of applying a deco film in the art can be applied. The decorative member may further include an adhesive layer as needed. In another example, the decorative member may be applied by direct coating to a portable electronic device or an electronic product. In this case, a separate adhesive layer for attaching the decorative member to the portable electronic device or the electronic product may not be required. In another example, the decorative member may be attached to a portable electronic device or an electronic product via an adhesive layer. The adhesive layer may be an optically clear adhesive tape (OCA tape) or an adhesive resin. As the OCA tape or adhesive resin, OCA tape or adhesive resin known in the art can be applied without limitation. If necessary, a release liner for protecting the adhesive layer may further be provided.

In one embodiment of the present invention, the light reflecting layer and the light absorbing layer may be formed by a sputtering method, an evaporation method, a vapor deposition method, a CVD (chemical vapor deposition) method, a wet coating method, Or on the pattern of the patterned layer of the substrate. In particular, since the sputtering method has a linearity, it is possible to maximize the difference in deposition thickness between the inclined surfaces of the convex portions by tilting the position of the target.

In one embodiment of the present invention, the light reflecting layer and the light absorbing layer may be formed by a reactive sputtering method, respectively. Reactive sputtering is a method in which ions with energy (e.g., Ar ^&lt; ^{+ &} gt ^; ) impact the target material, and the target material is deposited on the surface to be deposited. At this time, the base pressure may be 1.0 X 10 ^-5 Torr or less, 6.0 X 10 ^-6 Torr or less, and preferably 3.0 X 10 ^-6 Torr or less.

In one embodiment of the present disclosure, the reactive sputtering method may be performed in a chamber including a plasma gas and a reactive gas. The plasma gas may be argon (Ar) gas.

In one embodiment of the present invention, the flow rate of the plasma gas may be 10 sccm to 300 sccm, preferably 20 sccm to 200 sccm. The sccm means Standard Cubic Centimeer per minute.

In one embodiment of the present disclosure, the process pressure p1 in the chamber may be 1.0 mTorr to 10.0 mTorr, preferably 1.5 mTorr to 6.0 mTorr. When the process pressure is higher than the above range in the sputtering, the Ar particles existing in the chamber are increased and the particles emitted from the target collide with the Ar particles to lose energy, so that the growth rate of the thin film may be lowered. On the other hand, if the process pressure is kept too low, the energy loss of the silicon particles due to the Ar particles is reduced, but there is a disadvantage that the substrate may be damaged by the particles having high energy or the quality of the protective layer may be deteriorated.

In one embodiment of the present invention, the reactive sputtering method may have a driving power of 100 W or more and 500 W or less, preferably 150 W or more and 300 W or less.

In one embodiment of the present invention, the range of the voltage applied in the reactive sputtering method may be 350V to 500V. The range of the voltage can be adjusted according to the state of the target, the process pressure, the driving power (process power) or the fraction of the reactive gas.

In one embodiment of the present invention, the deposition temperature of the reactive sputtering method may be 20 ° C or higher and 300 ° C or lower. In the case of deposition at a temperature lower than the above range, there is a problem that the crystallinity of the thin film growth is deteriorated due to a lack of energy required for crystal growth of the particles falling off from the target and arriving at the substrate. Evaporation or re-evaporation may cause a problem that the growth rate of the thin film is lowered.

The present application will be described in detail with reference to the following examples, but the scope of the present invention is not limited by the following examples.

&Lt; Examples and Comparative Examples &

&Lt; Example 1 >

An ultraviolet curable resin was applied onto the PET substrate to form a prismatic pattern layer having an inclination angle of 20 degrees / 70 degrees. Then, a color developing layer including a light absorbing layer and a light reflecting layer was formed on the pattern layer by reactive sputtering.

Specifically, reactive sputtering was used to form a silicon light absorbing layer having a thickness of 20 nm. Then, a light reflecting layer having a thickness of 30 nm was formed by depositing In on the light absorbing layer by a sputtering method.

&Lt; Example 2 >

A decorative member was prepared in the same manner as in Example 1 except that the thickness of the light absorbing layer was changed to 30 nm.

&Lt; Example 3 >

A decorative member was produced in the same manner as in Example 1 except that the thickness of the light absorbing layer was changed to 40 nm.

&Lt; Comparative Example 1 &

A decorative member was prepared in the same manner as in Example 1 except that the thickness of the light absorbing layer was changed to 50 nm.

&Lt; Comparative Example 2 &

A decorative member was prepared in the same manner as in Example 1 except that the thickness of the light absorbing layer was changed to 60 nm.

&Lt; Comparative Example 3 &

A decorative member was produced in the same manner as in Example 1 except that the thickness of the light absorbing layer was changed to 69 nm.

The thickness of the light reflection layer, the thickness of the light absorption layer, and the thickness parameter of the above Examples and Comparative Examples were measured and shown in Table 3 below.

	Light reflection layer thickness	The thickness of the light absorbing layer (T 1 )	Tx	Ty	σ
Example 1	30 nm	20 nm	0.167	1.1	0.1837
Example 2		30 nm	0.333		0.3663
Example 3		40nm	0.5		0.55
Comparative Example 1		50nm	0.667		0.7337
Comparative Example 2		60nm	0.833		0.9163
Comparative Example 3		69 nm	0.983		1.0813

&Lt; Evaluation example (color evaluation) >

The hues of decorative members prepared in the above Examples and Comparative Examples were observed and recorded in Table 4 below.

	Lch coordinate	h * value	color
Example 1	36,57,315	315	Coulton
Example 2	40,12,217	217
Example 3	81,15,109	109
Comparative Example 1	82,30,87	87	Warmtone
Comparative Example 2	75, 34, 49	49
Comparative Example 3	61, 47, 353	353

In the case of the decorating member of the embodiment, cool color was shown, but in the case of the comparative example, warm color was shown, and the results are shown in Fig.

From the above results, it was confirmed that a cooltone hue appears when the σ represented by the formula 1 is 0.7 or less, but a warmthone hue appears when the σ exceeds 0.7.

Claims (13)

1. A color reproduction layer comprising a light reflection layer and a light absorption layer provided on the light reflection layer; And a base material provided on one side of the color developing layer and including a pattern layer,

   Wherein the light absorbing layer comprises silicon (Si)

   A decoration member represented by the following formula 1 wherein? Is more than 0 but not more than 0.7:

   [Formula 1]

   

   [Formula 2]

   

   [Formula 3]

   

   In the formula 1, T _x is represented by the formula 2, Ty is represented by the formula 3,

   In the formula 2,

   

   silver

   

   , T ₀ is 60 nm,

   T ₁ = m * T ₀ + For non-10nm and the T _x is satisfies the formula 2, and T ₁ = m * T ₀ + 10nm if the Tx is 1, and wherein m is an integer of 1 or more,

   T ₁ is an average thickness of a light absorbing layer included in one end face (S1) in the thickness direction of the decorative member, and T ₂ is an average thickness of the light reflecting layer included in one end face (S 1) in the thickness direction of the decorative member The average thickness.
2. The decorative member of claim 1, wherein Tx is greater than 0 and less than or equal to 0.5.
3. The decorative member according to claim 1, wherein the Ty is more than 1.0 and not more than 1.4.
4. The decorative member according to claim 1, wherein the hue angle h * in the CIE LCh color space of the light absorbing layer is in the range of 105 ° to 315 °.
5. The light reflection layer according to claim 1, wherein the light reflection layer is formed of a material selected from the group consisting of indium (In), titanium (Ti), tin (Sn), silicon (Si), germanium (Ge), aluminum (Al), copper (Cu) (V), tungsten (W), tantalum (Ta), molybdenum (Mo), neodymium (Nb), iron (Fe), chromium (Cr), cobalt One or more materials selected from the group consisting of: Oxides thereof; Its nitride; Its oxynitrides; Carbon and carbon composites. The decorative member may be a single layer or a multi-layer decorative member.
6. The decorative member according to claim 1, wherein the light absorbing layer has a refractive index of 0 to 8 at a wavelength of 400 nm.
7. The decorative member according to claim 1, wherein the light absorbing layer has an extinction coefficient of more than 0 and 4 or less at a wavelength of 400 nm.
8. The decorative member according to claim 1, wherein the light absorbing layer includes two or more points having different thicknesses.
9. The decorative member according to claim 1, wherein the color developing layer further comprises a color film.
10. The decorative member according to claim 1, wherein the pattern layer includes a convex portion or a concave portion shape having an asymmetrical cross section.
11. The decorative member according to claim 1, having a dichroic property of DELTA E * ab >
12. The decorative member according to claim 1, wherein the substrate comprises a plastic molded article for a cosmetic container or a glass substrate.
13. 13. The method of claim 12, wherein the plastic extrudate is selected from the group consisting of polypropylene (PP), polystyrene (PS), polyvinyl acetate (PVAc), polyacrylate, polyethylene terephthalate (PET), polyvinyl chloride (PV), ethylene-vinyl acetate copolymer (EVA), polycarbonate (PC), polyamide and styrene-acrylonitrile copolymer (SAN) .

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