BRA CUP STRUCTURE
The bra cup structure of the present disclosure comprises two laminated flexible layers 2, 3 enclosing between them a pouch 4 containing a malleable material made of silicone gel filled with polymer microspheres; the pouch 4 is formed by two thin polymer films 5, 6 sealed to one another, for example made of polyurethane. The inner layer 3 is made of viscoelastic foam.
1 . A bra cup structure including two flexible, interior and exterior, layers stuck together, enclosing between them a pouch containing a malleable material, characterized in that the malleable material is a silicone gel charged with polymer microspheres and in that the interior layer is a visco-elastic foam layer while the exterior layer is made of flexible material chosen from non-visco-elastic foams and textile filling materials.
2 . The structure as claimed in claim 1 , wherein the malleable material is disposed in a pouch constituted by two polymer, for example polyurethane, films sealed to each other.
3 . The structure as claimed in claim 2 , wherein the thickness of the films is less than 40 μm.
4 . The structure as claimed in claim 1 , wherein the malleable material of the pouch has a mass per unit volume between 0.60 and 0.75 g/cm 3 .
5 . The structure as claimed in claim 1 , wherein at least the interior layer of visco-elastic foam is stuck to a textile material.
6 . The structure as claimed in claim 1 , wherein the weight of silicone gel in the pouch is substantially between 7 and 9 grams.
7 . The structure as claimed in claim 1 , wherein the shape of the pouch is substantially elliptical, with a major axis between 8 and 15 cm and a minor axis between 4.5 and 7 cm.
8 . The structure as claimed in claim 1 , wherein the mean thickness of the pouch is between 2 and 3 mm.
9 . The structure as claimed in claim 1 , wherein in the cup of the invention, in the part in which the pouch is situated, the normalized 25% depression force is between approximately 2 and 3.5 N and the normalized 65% depression force at the same location is between approximately 15 and 40 N.