B29C66/83415

APPARATUS AND METHOD OF MANUFACTURING AN ELASTIC COMPOSITE STRUCTURE FOR AN ABSORBENT SANITARY PRODUCT

An elastic composite structure includes a plurality of tensioned elastic threads positioned between first and second web layers. A pattern of laminating bonds fuse the first and second web layers together within a deactivated zone of the elastic composite structure. A cut end of a first portion of a tensioned elastic thread and a cut end of a second portion of the tensioned elastic thread are positioned on opposing ends of the deactivated zone. A pattern of anchoring bonds fuses the first and second web layers together within an anchored zone bounding opposing ends of the deactivated zone. The anchored zone includes a first plurality of bonds that anchor the first portion of the tensioned elastic thread to the first and second web layers and a second plurality of bonds arranged that anchor the second portion of the tensioned elastic thread to the first and second web layers.

Method and Apparatus for Assembling Absorbent Articles
20200268563 · 2020-08-27 ·

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.

Absorbent body and device for producing same
10751230 · 2020-08-25 · ·

An absorbent body forming satisfactory connections while webs are conveyed at a high speed includes at least two sheets of nonwoven fabric overlapping each other; connections at which the nonwoven fabric sheets are connected together; and an absorbent material disposed between the nonwoven fabric sheets at a small region encircled by the connections. When seen in a direction perpendicular to a main surface of the nonwoven fabric sheets, a plurality of the connections is formed with spaces therebetween on each side of imaginary polygons compartmentalizing the nonwoven fabric sheets and neighboring each other, and the connection is formed at least on a middle part of the sides common to the imaginary polygons neighboring each other. The connections are formed sequentially, and simultaneously arranged in a row parallel to each other, and the minimum number of connections per row is at least 45% of the maximum number of connections per row.

Deformed Web Materials

Deformed web materials are disclosed. The web materials have discrete deformations formed therein. The deformations may be features in the form of portions of a web with apertures therein, protrusions, depressed areas, and combinations thereof. These features may extend out from the surface on one side of the web, or from both of the surfaces of the web. Different features may be intermixed with one another.

ELASTIC MEMBER AND DISPOSABLE WEARING ARTICLE INCLUDING ELASTIC MEMBER
20200214362 · 2020-07-09 · ·

In an elastic member, a first sheet layer and a second sheet layer are formed of a material having translucency. An elastic sheet can be visually recognized through the first sheet layer and the second sheet layer. First non-joint bands linearly continuous along a first direction intersecting an stretchable direction at an acute angle are repeatedly present at intervals in a direction orthogonal to the first direction as non-joint bands in which a portion not having sheet joined portions is continuous in an unfolded state in a stretchable region. Sheet joined portions and joint holes are provided at intervals between adjacent first non-joint bands in the stretchable region. A unit structure including a plurality of first non-joint bands having different first widths determined as widths in the direction orthogonal to the first direction is repeatedly present in the direction orthogonal to the first direction in the stretchable region.

ELASTIC MEMBER AND DISPOSABLE WEARING ARTICLE INCLUDING ELASTIC MEMBER
20200214905 · 2020-07-09 · ·

A member that exhibits a complicated appearance without monotonous contraction wrinkles and has excellent appeal to consumers when the member is applied to an absorbent article. A third joined portion row is formed between a first joined portion row A1 and a second joined portion row adjacent to each other, and an interval of at least a part of the third joined portion row in the alignment direction is longer than an interval S1 of the first joined portion row and the interval of the second joined portion row in the alignment direction.

ELASTIC MEMBER AND DISPOSABLE WEARING ARTICLE INCLUDING ELASTIC MEMBER
20200214363 · 2020-07-09 · ·

An elastic member which has low stretching stress in a stretchable direction in a stretchable structure of an elastic sheet and is excellent in a feeling of wearing in the case of being applied to an absorbent article. An elastic sheet stretchable structure is provide in which an elastic film is stacked between a first sheet layer having air permeability and a second sheet layer having air permeability, and the first sheet layer and the second sheet layer are bonded through joint holes penetrating the elastic film at a plurality of sheet joined portions arranged at intervals. The joined portions have first joined portions and second joined portions, a plurality of rows of the first joined portions is formed at intervals in a stretchable direction, and rows of the second joined portions having a short length are formed between the rows of the first joined portions.

ELASTIC MEMBER AND DISPOSABLE WEARING ARTICLE INCLUDING ELASTIC MEMBER
20200214904 · 2020-07-09 · ·

An elastic sheet stretchable structure in which a first sheet layer and a second sheet layer are bonded through joint holes penetrating an elastic film at a plurality of sheet joined portions arranged at intervals is included. Joined portion groups in the stretchable region are in a relationship of intersecting a stretchable direction line at respective positions in an orthogonal direction or in a relationship of not intersecting the stretchable direction line at a separation width of 0.5 mm or less in the orthogonal direction of the stretchable direction line. The joined portion groups are in a relationship of not intersecting an oblique line at a predetermined separation width in the orthogonal direction in an oblique line group of oblique lines q in the orthogonal direction intersecting the stretchable direction line within an angle range of 45 degrees or less.

Glass and polymer film assemblies and methods of making

A glass and polymer film assembly including a glass film and a polymer film bonded to a surface of the glass film. The polymer film is directly bonded to the glass film by applying the polymer to the glass film when the glass film is above a bonding temperature of the polymer film. The glass film may have a thickness less than about 1 mm and the polymer film may be an oriented semicrystalline homopolymer which is permanently bonded to a major surface of the glass film.

METHOD AND APPARATUS FOR ASSEMBLING ABSORBENT ARTICLES
20200179179 · 2020-06-11 ·

The present disclosure relates to methods for assembling elastic laminates that may be used to make absorbent article components. Particular aspects of the present disclosure involve a spreader mechanism operating to activate an elastic material by stretching the elastic material in to a first elongation. The elastic material is then consolidated to a second elongation, wherein the second the elongation is less than the first elongation. The consolidated elastic material is then joined to one or more substrates. In some configurations, the substrates may be nonwovens, and the elastic material may be an elastic film and/or an elastic laminate.