Patent classifications
A61F2013/15926
Method and apparatus for assembling absorbent articles
The present disclosure relates to assembling elastic laminates that may be used to make absorbent article components. Methods and apparatuses 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 CORE, ARTICLES COMPRISING SAID CORE, AND METHODS OF MAKING
An absorbent core comprising substantially continuous zones of one or more high fluid distribution structures and discontinuous zones of fluid absorption structures surrounding the one or more high fluid distribution structures, wherein the one or more high fluid distribution structures are arranged to distribute fluid across the absorbent core at a speed that is faster than the speed of fluid distribution across the absorbent core by said discontinuous fluid absorption structures, and wherein said continuous zones extend along a path that is substantially parallel to at least a portion of the perimeter of the core, said portion of the perimeter of the core comprising at least a portion of the sides of the core and one of the ends of the core.
Elastic laminates and methods for assembling elastic laminates for absorbent articles
The present disclosure relates to elastic laminates and methods for assembling elastic laminates that may be used to make absorbent article components. Elastic laminates may include one or more reinforcement layers positioned between unstretched portions of elastic materials and substrates to which the elastic materials are bonded.
Method of forming an absorbent structure
A liquid absorbent structure is made by dry laying a fibrous web having incorporated therein a superabsorbent material, and applying an aqueous composite stabilizer to at least one surface of the web. The aqueous composite stabilizer imparts integrity to the resulting structure without substantially impairing the effectiveness of the superabsorbent material to absorb liquid while forming the absorbent structure without removing the water from aqueous composite stabilizer or drying out the absorbent structure. The absorbent composite absorbs the water from the aqueous composite stabilizer. The absorbent composite comprises about 70% by weight of a superabsorbent material.
ELASTIC LAMINATES AND METHODS FOR ASSEMBLING ELASTIC LAMINATES FOR ABSORBENT ARTICLES
The present disclosure relates to elastic laminates and methods for assembling elastic laminates that may be used to make absorbent article components. Elastic laminates may include one or more reinforcement layers positioned between unstretched portions of elastic materials and substrates to which the elastic materials are bonded.
ABSORBENT ARTICLE WITH ELASTIC LAMINATE
An absorbent article having a chassis and an ear joined to the chassis is provided. The ear includes a laminate having a first nonwoven, a second nonwoven, and an elastomeric material sandwiched between the first nonwoven and the second nonwoven. The laminate further includes a plurality of ultrasonic bonds. The elastomeric material has a maximum dimension, Y, in a stretch direction and defines a primary region including an elastic region and one or more unstretched zones. The elastic region has a maximum dimension, X, in the stretch direction, and the one or more unstretched zones has an aggregate lateral width of Wd. A ratio of Wd to Y is 0.3 or less.
Absorbent core, articles comprising said core, and methods of making
An absorbent core comprising substantially continuous zones of one or more high fluid distribution structures and discontinuous zones of fluid absorption structures surrounding the one or more high fluid distribution structures, wherein the one or more high fluid distribution structures are arranged to distribute fluid across the absorbent core at a speed that is faster than the speed of fluid distribution across the absorbent core by said discontinuous fluid absorption structures, and wherein said continuous zones extend along a path that is substantially parallel to at least a portion of the perimeter of the core, said portion of the perimeter of the core comprising at least a portion of the sides of the core and one of the ends of the core.
Apparatus and method for forming an absorbent pad
An apparatus for forming an absorbent pad for an absorbent sanitary article having a zone free of absorbent material to define a channel of the pad includes a forming drum, a first feed system for feeding a first web, a second feed system for feeding a second web, a spreader for spreading the absorbent material on the drum; a joining system for joining the first and second webs to define the channels. A first dispenser forms on the first web a layer of first adhesive substance according to a spreading pattern having zones free of the first adhesive substance corresponding to the channels. A second dispenser dispenses a second adhesive substance, whose adhesive force is greater than an adhesive force of the first adhesive substance, on the second web according to a pattern having a layer placed at a zone free of the first adhesive substance.
ABSORBENT CORE, ARTICLES COMPRISING SAID CORE, AND METHODS OF MAKING
An absorbent core comprising a front portion; a back portion; a middle portion positioned between the front portion and the back portion; and a longitudinal axis extending along a length of said core and crossing said front, middle and back portions, the absorbent core having a width extending perpendicular to said length and a perimeter comprising at least two opposing ends and at least two opposing sides positioned between said ends wherein the absorbent core comprises one or more channels having a first shape when the absorbent core is in dry state and a second shape when the absorbent core is in wet state and wherein said first and second shapes are different.
Absorbent material manufacturing device
In a method and device for manufacturing an absorbent material, the degree of freedom in design can be increased by expanding a modifiable distribution pattern of an SAP and broadening the range in which the performance of the absorbent material can be modified. Pulverized pulp is suctioned in a predetermined pattern to form a pulp layer in which the pulp is fiber-laminated. A first distribution opening through which a first distribution device discharges a first SAP and a second distribution opening through which a second distribution opening discharges a second SAP are provided facing the pulp layer, and the first and second SAPs are distributed onto the pulp layer through the first and second distribution openings while moving the pulp layer relative to the first and second distribution openings. The first and second distribution devices can control the discharge amounts of the first SAP and the second SAP, respectively.