Cosmetic container with protection against UV-light
The present invention relates to a perfume bottle coated with a filtering film allowing protection of aroma compounds sensitive to UV-light.
1 . A perfume bottle comprising
a glass container,
a fragrancing composition in the glass container, said fragrancing composition comprising at least:
i. 100 ppm of aroma compounds having an α,β-unsaturated carbonyl functional group, or
ii. 50 ppm of aroma compounds being conjugated terpenes or conjugated terpenoids
a filtering film on the glass container, said filtering film comprising compounds absorbing UV-light in a range from 300 nm to 380 nm and a binder, wherein the weighted mean absorbance A 380 of the filtering film is greater than 2 with A 380 defined by the following relation:
A
3
8
0
=
∫
3
0
0
3
8
0
W
(
λ
)
A
(
λ
)
d
λ
∫
3
0
0
3
8
0
W
(
λ
)
d
λ
where A(λ) represents the absorbance of the filtering film at a given wavelength, and W(λ) represents a weighting function equal to the product of the solar spectrum irradiance E S (λ) and a sensitivity function S(λ) defined as a gaussian function with the peak centered at 300 nm and a standard deviation of 24 nm.
2 . The perfume bottle according to claim 1 , wherein the aroma compound having an α,β unsaturated carbonyl functional group is selected from the group consisting of cinnamaldehyde, α-amylcinnamaldehyde, α-hexylcinnamaldehyde, citral, 4-anisaldehyde, benzaldehyde, 4-isopropylbenzaldehyde, piperonal, vanillin, carvone, α-damascone, β-damascenone, α-ionone, β-ionone, γ-ionone, α-isomethylionone, jasmone, oct-1-en-3-one, and their mixtures.
3 . The perfume bottle according to claim 1 , wherein the aroma compound having an α,β unsaturated carbonyl functional group is selected from the group consisting of citral, α-damascone, α-isomethylionone, β-ionone, cinnamaldehyde, or wherein the aroma compound being conjugated terpenes or conjugated terpenoids is selected from the group consisting of α-farnesene, germacrene D, α-phellandrene.
4 . The perfume bottle according to claim 1 , wherein the fragrancing composition comprises less than 500 ppm of photo stabilizers.
5 . The perfume bottle according to claim 1 , wherein the concentration of α,β-unsaturated carbonyl functional groups in the fragrancing composition is greater than or equal to 0.05 mmol·kg −1 .
6 . The perfume bottle according to claim 1 , wherein the concentration of unsaturations in conjugated terpenes or conjugated terpenoids in the fragrancing composition is greater than or equal to 0.03 mmol·kg −1 .
7 . The perfume bottle according to claim 1 , wherein the weighted mean absorbance A 340 of the filtering film is greater than 2 with A 340 defined by the following relation:
A
3
4
0
=
∫
3
0
0
3
4
0
W
(
λ
)
A
(
λ
)
d
λ
∫
3
0
0
3
4
0
W
(
λ
)
d
λ
.
8 . The perfume bottle according to claim 1 , wherein the compounds absorbing UV-light comprise semi-conductive nanoparticles having a formula
MxEy (I),
wherein:
M is selected from the group consisting of Zn, Cd, Hg, Cu, Ag, Al, Ga, In, Si, Ge, Sn, Pb and a mixture thereof;
E is selected from the group consisting of S, Se, Te, N, P, As, Sb, and a mixture thereof;
x and y are independently a decimal number from 0.5 to 5.
9 . The perfume bottle according to claim 8 , wherein the semi-conductive nanoparticles in the filtering film are present in an amount that is in a range from 0.05 wt % to 15 wt %, based on the weight of the filtering film, for a 10 μm-thick film.
10 . The perfume bottle according to claim 1 , wherein the compounds absorbing UV-light comprise organic anti-UV compounds selected from the group consisting of benzotriazoles, triazines, piperidines, benzophenones, catechol, their derivatives, and mixtures thereof.
11 . The perfume bottle according to claim 10 , wherein the organic compounds absorbing UV-light in the filtering film are present in an amount that is in a range from 2 wt % to 25 wt %, based on the weight of the filtering film, for a 10 μm-thick film.
12 . The perfume bottle according to claim 1 , wherein the filtering film is transparent.
13 . The perfume bottle according to claim 1 , wherein the filtering film is transparent and uncoloured.
14 . The perfume bottle according to claim 1 , wherein the perfume bottle is transparent.
15 . The perfume bottle according to claim 1 , wherein the perfume bottle is transparent and uncoloured.
16 . The perfume bottle according to claim 1 , wherein the difference of lightness between the perfume bottle and the container is lower than 5.
17 . The perfume bottle according to claim 1 , wherein the difference of lightness between the perfume bottle and the container is lower than 5, and the Chroma of the perfume bottle is lower than 60.
18 . The perfume bottle according to claim 1 , wherein the difference of lightness between the perfume bottle and the container is lower than 5, and the Chroma of the perfume bottle is lower than 50.
19 . The perfume bottle according to claim 1 , wherein the fragrancing composition is a perfume, an esprit de parfum, an eau de parfum, or an eau de toilette.
20 . The perfume bottle according to claim 1 , wherein the weighted mean absorbance A 380 of the filtering film is greater than 2.5.