Case No. IP-2015-000205
Intellectual Property Enterprise Court

Case No. IP-2015-000205

Fecha: 24-May-2017

characterized in that

said outer material layer and said inner material layer are non-woven materials and in that at each said vent site: said outer material layer and said inner material layer are bonded by ultrasonic bonding through the stretchable material layer; whereby an aperture larger than the respective bond site is formed through the stretchable material, thereby forming a breathable passage through said stretchable material layer; and whereby with no apertures being formed in said outer material layer or in said inner material layer said outer material layer and said inner material layer bond with each other through the aperture in the stretchable material. 9. A method of forming a breathable, stretchable section of a disposable absorbent garment, said method comprising the steps of: selecting a first material for a first material layer and a second material for a second material layer, wherein said first and second material layers are bondable by an ultrasonic bonding process; selecting an elastic material for a stretchable material layer; positioning the stretchable material layer between the first and second material layers to form a layer assembly; targeting one or more bond sites on the layer assembly for bonding one or more of the material layers together; and securing the first, second and stretchable layers together, characterized in that : the step of selecting the first and second material includes selecting a first nonwoven material and a second non-woven material, respectively; the selecting and positioning steps include selecting and positioning the first, second, and stretchable material layers so as to form a stretchable side waist region of the garment after the securing step; and said securing is by ultrasonically bonding the first material layer with the second material layer through the stretchable material layer at the one or more sites whereby an aperture larger than the respective bond site is formed through the stretchable material providing a breathable passage therethrough and whereby with no apertures being formed in said first material layer or in said second material layer the first material layer and the second material layer bond with each other through the aperture in the stretchable material.