Multi-layer adhesive tape to compress and contract a scar

A multi-layer adhesive tape to compress and contract a scar, said tape comprising:

• a flexible top layer,
• a bonding layer,
• a flexible bottom layer which comprises an adhesive layer which is designed to cover the scar, said bottom layer and said top layer being bound to each other by means of said bonding layer,
• said top layer having a width greater than that of the bottom layer so as to cover it over its whole width,
• wherein said top layer has a thickness (h) between 20 and 1100 μm, preferably between 20 and 900 μm, more preferably between 20 and 800 μm, advantageously between 20 and 200 μm, even more advantageously between 50 and 100 μm, so as to obtain, in the position of application of the adhesive tape on said scar, a positive pressure P which is defined by the force applied by the top layer on the surface of the scar, in accordance with the following pressure equation:
• P
• =
• ɛ
• ·
• E
• ·
• h
• ·
• sin
• 
• 
• α
• L
• where,
• P corresponds to the pressure applied by the tape on the scar,
• ε corresponds to the relative deformation of the top layer and,
• E represents the Young's modulus of the top layer,
• h represents the thickness of the top layer,
• L represents the width of the bottom layer, and
• the angle α is defined between one of the ends of the top layer and the surface of the scar.