Decoration member

Patent metadata

Field	Value
Publication number	US-11524483-B2
Application number	US-201816772134-A
Country	US
Kind code	B2
Filing date	Dec 14, 2018
Priority date	Dec 15, 2017
Publication date	Dec 13, 2022
Grant date	Dec 13, 2022

Abstract

A decoration member including: a color developing layer including a light reflective layer and a light absorbing layer provided on the light reflective layer; and a substrate provided on one surface of the color developing layer. The light absorbing layer includes a copper oxynitride (CuaObNc).

First claim

The invention claimed is:

1. A decoration member comprising:
a color developing layer comprising a light reflective layer and a light absorbing layer provided on the light reflective layer; and
a substrate provided on one surface of the color developing layer,
wherein the light absorbing layer includes a copper oxynitride (Cu a O b N c ); and
wherein, when a component analysis is performed through a transmission X-ray analysis on any one point of the light absorbing layer, ω represented by the following Equation 1 is 0.71 or greater:
ω=( T x ) x (σ x )  [Equation 1]

wherein in Equation 1, T x is represented by Equation 2, an dσ x is represented by Equation 3:

Tx
=

{

T
1

-

[

T
1

T
0

]

×

T
0

}

×

(

T
0

)

-
1

[

Equation
⁢

⁢
2

]

σ
x

=

10
⁢
b

a
-

3
⁢
c

;

[

Equation
⁢

⁢
3

]

wherein in Equation 2, T 1 is a thickness of the light absorbing layer including the any one point of the light absorbing layer on which the component analysis is performed,

[

T
1

T
0

]

is a maximum integer that is not greater than

T
1

T
0

,

and T 0 is 70 nm;
wherein when T 1 is m*T 0 , T x is 1, wherein when T 1 is not m*T 0 , Tx satisfies Equation 2, and wherein m is an integer of 1 or greater; and
wherein in Equation 3, a is an element content ratio of copper (Cu), b is an element content ratio of oxygen (O), and c is an element content ratio of nitrogen (N).

2. The decoration member of claim 1 , wherein Tx is greater than or equal to 0.51 and less than or equal to 1.

3. The decoration member of claim 1 , wherein σ x is greater than or equal to 1.1 and less than or equal to 1.9.

4. The decoration member of claim 1 , wherein a hue-angle h* in CIE LCh color space of the light absorbing layer is in a range of 105° to 315°.

5. The decoration member of claim 1 , wherein the light reflective layer is a single layer or a multilayer comprising one or more materials selected from the group consisting of indium (In), titanium (Ti), tin (Sn), silicon (Si), germanium (Ge), aluminum (Al), copper (Cu), nickel (Ni), vanadium (V), tungsten (W), tantalum (Ta), molybdenum (Mo), neodymium (Nd), iron (Fe), chromium (Cr), cobalt (Co), gold (Au), silver (Ag), oxides thereof, nitrides thereof, oxynitrides thereof, carbon and carbon composites.

6. The decoration member of claim 1 , wherein the light absorbing layer has a refractive index of 0 to 8 at a wavelength of 400 nm.

7. The decoration member of claim 1 , wherein the light absorbing layer has an extinction coefficient of greater than 0 and less than or equal to 4 at a wavelength of 400 nm.

8. The decoration member of claim 1 , wherein the light absorbing layer includes two or more points with different thicknesses.

9. The decoration member of claim 1 , wherein the color developing layer further comprises a color film.

10. The decoration member of claim 1 , wherein the substrate comprises a pattern layer, and the pattern layer is provided adjacent to the color developing layer.

11. The decoration member of claim 10 , wherein the pattern layer comprises a convex portion or a concave portion having an asymmetric-structured cross-section.

12. The decoration member of claim 1 , which has a dichroism of ΔE*ab>1, wherein (ΔE*ab) is a distance in a L*a*b* space in a color coordinate CIE L*a*b*, L* is a distance from L axis and a* and b* are Cartesian coordinates.

13. The decoration member of claim 1 , wherein the substrate comprises a plastic injection molded article or a glass substrate for a cosmetic container.

14. The decoration member of claim 13 , wherein the plastic injection molded article comprises one or more selected from the group consisting of polypropylene (PP), polystyrene (PS), polyvinyl acetate (PVAc), polyacrylate, polyethylene terephthalate (PET), polyvinyl chloride (PVC), polymethyl methacrylate (PMMA), an ethylene-vinyl acetate copolymer (EVA), polycarbonate (PC), polyamide and a styrene-acrylonitrile copolymer.

Assignees

• Lg Chemical Ltd

Inventors

• Kim Yong Chan
• Kim Ki Hwan
• Heo Nansra
• Shon Jeong Woo
• Song Jin Suk
• Jo Pilsung

Classifications

• B44F1/08

  characterised by colour effects · CPC title

• B32B3/30

  characterised by a layer formed with recesses or projections, e.g. {hollows, grooves, protuberances, ribs (apertured layer B32B3/266; layer with cavities or internal voids B32B3/26)} · CPC title

• B44C3/02

  Superimposing layers {(B44C3/005 takes precedence)} · CPC title

• A45D33/006

  Vanity boxes or cases, compacts, i.e. containing a powder receptacle and a puff or applicator (A45D33/025 - A45D33/34 and A45D40/22 take precedence; toiletry etuis A45C11/008) · CPC title

• B32B2451/00

  Decorative or ornamental articles · CPC title