Nonwoven aggregate and method of making a nonwoven aggregate

An apparatus for making a nonwoven aggregate, the apparatus comprising:

• a spinning beam for spinning out continuous filaments and and depositing the filaments on a mesh deposition belt to form a nonwoven web, the spinning beam being used to produce filaments for at least one first layer or first nonwoven layer and for their deposition on the receiving surface, and for producing filaments for at least one second layer or second nonwoven layer and depositing the second layer on the first layer or first nonwoven layer, the spinning beam or the spinneret openings of the spinning beam being set up such that the filaments of the first layer have a lower mean titer than the filaments of the second layer and/or
• the filaments of the first and second layers are crimped multicomponent filaments and the filaments of the second layer have a higher degree of crimp than the filaments of the first layer and/or
• the filaments of the first and second layers are multicomponent filaments with a low-melting-point binder component and the binder component content of the filaments of the first layer is higher than the binder component content of the filaments of the second layer, and
• at least one applying and/or injecting device is downstream of the spinning beam in the machine direction for applying and/or
• injecting functional particles onto or into the aggregate.