Pad with rigid and stretchable foam
View Patent ↗A method is provided for making a bra pad having a rigid foam that is thickest at the bottom of the pad for hidden support and a stretchable softer foam for comfort and universal fit throughout the entire pad. The method includes pre-laminating rigid and stretchable foam sheets with fabric and shaving the foam sheets. The rigid foam sheet is shaved so that it has a V-shaped recess and a gradually sloped interface between the V-shaped recess and remainder of the sheet. The stretchable foam sheet is shaved so that it has a pair of elevated areas. Then, the top surfaces of the shaved foam sheets are affixed together to form a pre-form assembly and the pre-form assembly is molded under heat. The pair of pads are then trimmed out.
1. A blank for making a pair of pads for a breast covering garment, comprising:
a first assembly of a fabric laminated to a rigid thermoplastic foam, the rigid thermoplastic foam having a V-shaped recess extending to an upper edge of the first assembly and bounded by a sloped interface and a lower thicker material area;
a second assembly of a fabric laminated to a stretchable thermoplastic foam, the stretchable thermoplastic foam having a pair of spaced apart elevated areas bounded by a thinner material area;
the first and second assemblies being connected to each other to form a pre-form assembly, with the foams facing each other and the elevated areas being substantially located along the sloped interface;
the pre-form assembly being molder into a selected shape to form the blank for containing the pair of pads, the pair of pads being cuttable from the blank.
2. The blank according to claim 1 , further comprising a flange extending from a bottom of the pre-form.
3. The blank according to claim 1 , wherein the rigid thermoplastic foam has a density in the range of 45 to 55 kg/m 3 .
4. The blank according to claim 1 , wherein the rigid thermoplastic foam has a hardness in the range of 43 to 57 N.
5. The blank according to claim 1 , wherein the stretchable thermoplastic foam has a density in the range of 39 to 47 kg/m 3 .
6. The blank according to claim 1 , wherein the stretchable thermoplastic foam has a hardness in the range of 80 to 95 N.
7. A pair of pads for a breast covering garment, comprising:
a first assembly of a fabric laminated to a rigid thermoplastic foam, the rigid thermoplastic foam having a V-shaped recess extending to an upper edge of the first assembly and bounded by a sloped interface and a lower thicker material area;
a second assembly of a fabric laminated to a stretchable thermoplastic foam, the stretchable thermoplastic foam having a pair of spaced apart elevated areas bounded by a thinner material area;
the first and second assemblies being connected to each other to form a pre-form assembly, with the foams facing each other and the elevated areas being substantially located along the sloped interface;
the pre-form assembly being molder into a selected shape to form a blank for containing the pair of pads, the pair of pads being cuttable from the blank.
8. The pair of pads according to claim 7 , further comprising a flange extending from a bottom of the pre-form.
9. The pair of pads according to claim 7 , wherein the rigid thermoplastic foam has a density in the range of 45 to 55 kg/m 3 .
10. The pair of pads according to claim 7 , wherein the rigid thermoplastic foam has a hardness in the range of 43 to 57 N.
11. The pair of pads according to claim 7 , wherein the stretchable thermoplastic foam has a density in the range of 39 to 47 kg/m 3 .
12. The pair of pads according to claim 7 , wherein the stretchable thermoplastic foam has a hardness in the range of 80 to 95 N.