A machine and method for manufacturing an elastic composite structure for disposable sanitary products involves manufacturing the elastic composite structure with an elasticized leg and leg cuff region in a manner that minimizes or eliminates the use of consumable adhesives. The elastic composite structure includes pairs of leg bonds and cuff bonds that are formed without adhesive and anchor respective leg and cuff elastic threads in position relative to facing web layers. The leg bonds and cuff bonds are formed using one or more anvils that include discrete raised projections.

An absorbent sanitary article including a chassis and at least one gasketing element including two non-elastic outer layers and a transversally stretchable elastic film, wherein the transversally stretchable elastic film is shorter than the two non-elastic outer layers both in longitudinal and transverse directions, so that the gasketing element has two non-elastic longitudinal portions and two non-elastic transverse portions forming a non-elastic frame surrounding the transversally stretchable elastic film.

An absorbent sanitary article including a chassis and at least one transverse elastic element including in a unitary component an elastic gasketing portion extending between two side edges of the chassis and two elastic side panels extending transversally outwardly beyond respective side edges of the chassis.

The invention relates to a nonwoven laminated web (20) for making an elastic closure element (57) of a diaper (56) or an elastic shaping element (59) at the edge (58) of a diaper (56), having at least one laminate layer (21 and 22) of nonwoven textile (21 and 22) and a laminate layer (23) of an elastic film (23) adjacent thereto, the laminate layers (21 and 22, 23) being welded to one another at numerous spots (33) in a stretched state of the film (23). During welding, the film (23) is stretched in a central region (43) transverse to the longitudinal direction (L) of the nonwoven laminate (20) and is not stretched at the two longitudinal edge strips (50) in a width of 5-25% of the total width (G) of the film (23) in each case, so that, in the relaxed state of the film (23), the nonwoven laminate (20) forms folds (44) in the nonwoven layer (21 and 22) in the central region (43), which extend in the longitudinal direction (L) of the nonwoven laminate (20), and at the longitudinal edges (50, 51) has no folds in the nonwoven layer (21 and 22) but forms there two parallel, inelastic stiffening zones, the film (23) having a smooth, closed surface structure (49) at the longitudinal edge strips (50) and a wrinkled, furrowed surface structure (47) in the central region (43).

A method of making a laminate for an absorbent article is provided. The laminate comprises elastic elements disposed at least partially intermediate two substrates. The first substrate has a primary fiber bond pattern formed therein and comprising a plurality of primary fiber bonds. The method comprises forming densified regions in the first substrate. A perimeter of each of the densified regions is larger than a perimeter of each of the primary fiber bonds. The densified regions together form a pattern of densified regions in the first substrate. The method comprises adhesively attaching the elastic elements to the first substrate, joining the second substrate to the first substrate or to some of the elastic elements, and forming a plurality of rugosities in the first substrate by allowing the elastic elements to at least partially contract. The frequency and amplitude ranges of the rugosities result from the pattern of the densified regions.

The present disclosure relates to methods for making elastomeric laminates that may be used as components of absorbent articles. Aspects of the methods for assembling elastomeric laminates may utilize elastic strands supplied from beams that may be joined with first and second substrates, and may be configured to carry out various types of operations, such as bonding and splicing operations.

The present disclosure relates to assembling elastic laminates that may be used to make absorbent article components. Methods herein may include an anvil adapted to rotate about an axis of rotation, wherein first and second spreader mechanisms adjacent the anvil roll are axially and angularly displaced from each other with respect to the axis of rotation. During the assembly process, a substrate may be advanced in a machine direction onto the rotating anvil. The first spreader mechanism stretches a first elastic material in the cross direction, and the second spreader mechanism stretches a second elastic material in the cross direction. The stretched first and second elastic materials advance from the spreader mechanisms and onto the substrate on the anvil roll. The combined and elastic materials may then be ultrasonically bonded together on the anvil to form at least one elastic laminate.

Elasticated materials and articles comprising elasticated materials are disclosed. In an embodiment, an elasticated material may comprise a first layer, second layer, an elastomeric strand disposed between the first and second layers, and a plurality of bonds bonding the first and second layers together. The strand may have straight and arcuate portions. The bonds may comprise a first and a second bond and may be disposed on opposite sides of the strand and separated a distance less than an un-tensioned diameter of the strand. The first and second bonds may be disposed along a strand straight portion. The plurality of bonds may further comprise a third and fourth bond which are longitudinally adjacent and disposed on opposite sides of the strand and spaced apart a distance greater than the un-tensioned diameter of the strand. The third and fourth bonds may be disposed along a strand arcuate portion.

A hygienic article including a topsheet, a backsheet having first and second end edges extending in a lateral direction of the article and first and second side edges extending in a longitudinal direction of the article, and first and second leg elastic members extending along the first and second side edges of the backsheet. The backsheet includes first and second leg elastic anchoring portions extending along the side edges of the backsheet, the first and second leg elastic anchoring portions including two layers of backsheet material, with the first and second leg elastic members being arranged between the two layers of backsheet material, the first and second leg elastic members terminating at a distance from the first end edge of the backsheet, first leg elastic free portions are arranged at the first end edge of the hygienic article.

The methods herein relate to assembling an elastic laminate with a first elastic material and a second elastic material bonded between first and second substrates. During assembly, an elastic laminate may be formed by positioning the first and second substrates in contact with stretched central regions of the first and second elastic materials. The elastic laminates may include two or more bonding regions that may be defined by the various layers or components of the elastic laminate that are laminated or stacked relative to each other. In some configurations, a first plurality of ultrasonic bonds are applied to the elastic laminate to define a first bond density in the first bonding region, and a second plurality of ultrasonic bonds are applied to the elastic laminate to define a second bond density in the second bonding region, wherein the second bond density is not equal to the first bond density.