Patent ID: 6986820

Claim:
A process for registering a plurality of discrete components of a continuously moving second layer to reference marks on a continuously moving first layer in the manufacture of an absorbent article, comprising the steps of: providing a continuously moving first layer including a plurality of reference marks selectively positioned thereon; sensing a distance between two successive reference marks on the first layer and generating a signal in response to the sensed distance; providing a second layer having a plurality of continuously moving discrete components, wherein the discrete components comprise components of an absorbent article; sensing a distance between two successive components of the second layer and generating a signal in response to the sensed distance; synchronizing a feed rate of the components of the second layer to a feed rate of the reference marks on the first layer; aligning the components of the second layer a set distance to correspond with the reference marks on the first layer; superimposing the discrete components of the second layer onto the continuously moving first layer; and sensing the position of the superimposed components of the second layer relative to the corresponding reference marks on the first layer.