Tampon applicator and sanitary tampon
A tampon applicator includes an outer tube for containing at least a part of an absorber therein, a first inner tube and a second inner tube. The second inner tube is telescopically received within the first inner tube. The first inner tube and the second inner tube are connectable to each other during use to push out the absorber from the outer tube. At least a part of the first inner tube and at least a part of the second inner tube overlap with each other in an overlap region outside the outer tube. A color difference between the outer tube and the overlap region is higher than a color difference between the overlap region and the second inner tube.
1. A tampon applicator, comprising:
an outer tube configured to contain at least a part of an absorber therein; and
a first inner tube and a second inner tube,
wherein
the second inner tube is telescopically received within the first inner tube,
the first inner tube and the second inner tube are connectable to each other during use to push out the absorber from the outer tube,
when the first inner tube and the second inner tube are connected to each other, at least a part of the first inner tube and at least a part of the second inner tube overlap with each other in an overlap region outside the outer tube,
the first inner tube is transparent or translucent,
the outer tube and the second inner tube are colored, and
a color difference defined in L*a*b* color space between (i) a colored region of the outer tube and (ii) the overlap region is higher than a color difference defined in the L*a*b* color space between (a) the overlap region and (b) a colored region of the second inner tube.
2. The tampon applicator according to claim 1 , wherein a color difference defined in the L*a*b* color space between (1) the colored region of the outer tube and (2) a white reference plate is higher than a color difference defined in the L*a*b* color space between (I) the colored region of the second inner tube and (II) the white reference plate.
3. The tampon applicator according to claim 1 , wherein a color difference defined in the L*a*b* color space between the first inner tube and the colored region of the second inner tube is equal to or more than 14.09.
4. The tampon applicator according to claim 1 , wherein a color difference defined in the L*a*b* color space between the colored region of the outer tube and the colored region of the second inner tube is equal to or more than 14.09.
5. The tampon applicator according to claim 1 , wherein the color difference of the colored region of the outer tube with respect to a white reference plate is higher than the color difference of the first inner tube with respect to the white reference plate.
6. The tampon applicator according to claim 1 , further comprising:
a distinctness friction unit at a grip tube unit of the outer tube, the distinctness friction unit having a surface friction coefficient different from a surface friction coefficient of the first inner tube or a surface friction coefficient of the second inner tube, the grip tube unit configured to be gripped by fingers during use.
7. The tampon applicator according to claim 6 , wherein the grip tube unit has a diameter smaller than a diameter of a main body of the outer tube.
8. The tampon applicator according to claim 1 , wherein a distinctness friction unit having a surface friction coefficient different from those of other components of the tampon applicator is provided on at least one of the outer tube, the first inner tube, or the second inner tube.
9. The tampon applicator according to claim 1 , wherein the color difference is defined as ΔE by the following formula:
Δ E =((Δ L *) 2 +(Δ a *) 2 +(Δ b *) 2 )½,
where L* represents brightness, a* represents a coordinate of a red-green axis, and b* represents a coordinate of a yellow-blue axis, in a CIELab system.
10. A sanitary tampon, comprising:
an absorber; and
a tampon applicator including:
an outer tube include at least a part of the absorber therein; and
a first inner tube and a second inner tube,
wherein
the second inner tube is telescopically received within the first inner tube,
the first inner tube and the second inner tube are connectable to each other during use to push out the absorber from the outer tube,
when the first inner tube and the second inner tube are connected to each other, at least a part of the first inner tube and at least a part of the second inner tube overlap with each other in an overlap region outside the outer tube,
the first inner tube is transparent or translucent,
the outer tube and the second inner tube are colored, and
a color difference defined in L*a*b* color space between (i) a colored region of the outer tube and (ii) the overlap region is higher than a color difference defined in the L*a*b* color space between (a) the overlap region and (b) a colored region of the second inner tube.