The present disclosure relates to methods and apparatuses for assembling absorbent articles, and more particularly, methods and apparatuses for imparting a line of perforation into one or more layers of an advancing substrate and separating the substrate along the line of perforation to form a separation edge. The advancing substrate may be a belt assembly including an outer layer, an inner layer, and one or more elastic strands disposed between the outer layer and the inner layer. The belt assembly may be rotated on a process member about a longitudinal axis of rotation. The process member may advance the belt assembly to one or more ultra short pulse laser sources. The ultra short pulse laser source imparts a line of perforation into the belt assembly. A trim removal member may be used to separate the line of perforation forming a trim portion and a separation edge.

A method and apparatus to transfer and fold a partially folded absorbent article. The transfer apparatus includes a frame that is rotatable about a first axis of rotation and a transfer member that is rotatable about a second axis of rotation. The transfer member includes a receiving surface. While advancing absorbent article, the transfer member rotates the absorbent article about the second axis of rotation. The partially folded absorbent article is transferred to a folding apparatus. The folding apparatus advances the partially folded absorbent article such that the end regions of the belt of the partially folded absorbent article are directed away from the folding apparatus. The end regions are engaged by a folding assembly. The folding assembly guides and/or pushes the end regions toward the central region of the belt and/or the chassis to form a folded absorbent article.

A method and apparatus to transfer and fold a partially folded absorbent article. The transfer apparatus includes a frame that is rotatable about a first axis of rotation and a transfer member that is rotatable about a second axis of rotation. The transfer member includes a receiving surface. While advancing absorbent article, the transfer member rotates the absorbent article about the second axis of rotation. The partially folded absorbent article is transferred to a folding apparatus. The folding apparatus advances the partially folded absorbent article such that the end regions of the belt of the partially folded absorbent article are directed away from the folding apparatus. The end regions are engaged by a folding assembly. The folding assembly guides and/or pushes the end regions toward the central region of the belt and/or the chassis to form a folded absorbent article.

A series of elastic break brakes are provided throughout a travel path of elastics in a machine operation. Elastic strands thread through each individual brake mechanism, and if an elastic strand breaks downstream, a natural snap back of the elastic, which ordinarily travels through the system under tension, drives an immediately upstream cam mechanism back, and holds the elastic thread in place at the elastic break brake immediately upstream of the break as to minimize rethreading required downstream of the elastic break brake.

The present disclosure relates to manufacturing elastomeric laminates that may include a first substrate, a second substrate, and an elastic material located between the first substrate and second substrate. Methods and apparatuses may be configured to automatically isolate elastic strands that may break during the assembly process. As discussed in more detail below, the apparatuses may include a snare member extending adjacent to and across a travel path of elastic materials in a converting process. Thus, during the manufacture process, stretched elastics strands may advance past the snare member without contacting the outer circumferential surface of the snare member before being joined with a substrate. In the event that an elastic strand breaks, an upstream end portion of the elastic strand may retract back toward the snare member, wherein the upstream end portion wraps partially or completely around the outer circumferential surface of the snare member.

A device for forming and applying accessory elements to a continuous band of absorbent material, includes a unit for feeding a continuous strip to a conveyor roller, a unit for cutting the strip in a continuous and alternating succession of first and second pieces, a first and a second roller rotating about respective axes parallel to the first direction, each including a movement device acting along a circumferential direction around the respective axis and configured for imparting to each unit a respective motion between positions for picking up and releasing the pieces. A unit for applying a pair of pieces to the band is equipped with a separating unit equipped with a spacer device for moving first and/or second carriages along a separating direction between closed and far axial positions, wherein the spacer device includes a plurality of linear actuators each associated with a respective first carriage.

A method and apparatus for producing pant-like absorbent sanitary articles with longitudinal elastic bands without side welds, wherein a length of the elastic bands is different from a length of an absorbent body.

A method for forming an absorbent pad including a first layer, a second layer and an absorbent material interposed between the first and the second layer and arranged according to a spreading pattern M1 having at least one channel which is free of absorbent material, includes a step of feeding a first web, intended to form the first layer of the pad; a step of feeding a second web, intended to form the second layer of the pad; a step of spreading the absorbent material on the first web according to the spreading pattern M1; a step of joining the first and second webs, a step of removing any absorbent material that may be present in the channel.

The present invention can provide a sanitary absorbent article which includes a Lactobacillus formulation inside an absorbent pad to absorb bodily secretions and effectively remove odor thereof without leakage of the Lactobacillus to the outside of the absorbent pad.

A method including: a step of carrying first and second continuous webs in a predetermined carrying direction; a first slitting step of slitting the first continuous web along a virtual first cut-off line extending the carrying direction, thereby dividing the first continuous web into a wider first divided web and a narrower second divided web; a step of sandwiching an around-torso elastic member extending in a girth direction between the wider first divided web and the second continuous web; a welding step of welding together the first divided web, the second continuous web and the around-torso elastic member intermittently in the carrying direction, thereby producing a layered sheet; and a bonding step of sandwiching an around-leg elastic member meandering relative to the carrying direction between the layered sheet and the narrower second divided web, and attaching the around-leg elastic member thereto by an adhesive, thereby producing a stretchable continuous sheet.