Abstract:
The present invention relates to an arrangement (1 ) for processing of a material (7, 8) comprising at least one layer of material by means of an ultrasonic device (2) consisting of an ultrasound horn (3) arranged adjacent to an abutment (5; 5'), in conjunction with which a gap is defined between the aforementioned ultrasound horn (3) and the aforementioned abutment (5; 51), in conjunction with which the aforementioned ultrasonic device (2) is arranged for the purpose of feeding the aforementioned material (7, 8) through the aforementioned gap (6). In accordance with the invention, the arrangement (1 ) includes a pre-compression unit (9; 9') for the mechanical compression of the aforementioned material (7, 8) before it is fed through the aforementioned gap (6). The invention also relates to a method for processing of the aforementioned kind.
Abstract:
A discrete absorbent insert and containment system including an absorbent core is disclosed. The absorbent insert includes a first sheet, a second sheet in facing relation with the first sheet, and an absorbent core positioned between the first sheet and the second sheet. The absorbent core defines a core perimeter and the first sheet and the second sheet extend beyond the core perimeter and are joined together to form a perimeter seal. A central section of an absorbent core is positioned between a first end section and a second end section. Both the first end section and the second end section comprise an arc extending at least 185 degrees. The first end section defines a maximum width of at least 120 mm, the central section defines a maximum width of less than 115 mm, and the second end section defines a maximum width of at least 120 mm.
Abstract:
A composite absorbent material (1) comprising one or more absorbent layers (6) and one or more reinforcing layers (4) bonded together, and method of manufacture. The reinforcing layers (4) maintain the structural integrity of the material following fluid absorption. The composite absorbent material (1) may form the absorbent component of an absorbent wound dressing.
Abstract:
The present invention provides an absorbent article such as a diaper, pant diaper, a sanitary pant or incontinence garment. The article comprises at least one first elastic web material which is ultrasonically welded to at least one second web material along at least one weld seam. The second web material is different to the first elastic web material and said second web material has a degree of elasticity which is different to the elasticity of the first elastic web material. According to the invention, the ultrasonic weld seam between the first elastic web material and the second web material is reinforced to have a weld strength in a direction transverse to the weld seam which is at least 5N/25.4mm. The invention particularly relates to pant-type absorbent articles.
Abstract:
An absorbent core (28) for absorbent articles (20) such as diapers comprising a core wrap (16, 16') comprising a top side (288) and a bottom side (290), an absorbent material (60) between the top side and the bottom side of the core wrap, a first and second longitudinally-extending channel-forming areas (26a, b) substantially free of absorbent material preferably through which the top side of the core wrap is attached to the bottom side of the core wrap disposed on opposite sides of the longitudinal axis (80). The core has a central absorbent zone (62) between the first and the second channel-forming areas and a first and second lateral absorbent zones (61, 63) disposed laterally outwardly. The absorbent core comprises at least one transversal folding line (66, 66'), preferably at least two transversal folding lines, in the region where the longitudinally-extending channel-forming areas are present.
Abstract:
The invention relates to a bonding method, comprising delivering a web comprising selected materials to be bonded in a predetermined pattern through a nip region between a pattern roller and an anvil roller to form a bonded web. The method involves using an anvil roller having a first diameter (DA) and a pattern roller having a second diameter (DP), which pattern roller is provided with raised surface elements arranged in a predetermined pattern. The anvil and pattern rollers have an equivalent radius (Re) of less than or equal to 40 mm and causes a compressive mechanical deformation in the nip between the anvil and pattern rollers by means of said raised surface elements to induce an internal heating of the web materials. The compression of the web materials are performed at a deformation rate sufficient to cause a local temperature increase within the deformed materials of the web material between the raised surface elements and the anvil roller, causing bonding between the web materials.
Abstract:
The present invention is directed to a nonwoven fabric made from a composite of nonwoven and pulp where the nonwoven has a high loft derived from a heat set three-dimensional relief structure and/or hydroengorged fiber structure. A nonwoven web is hydraulically treated to create a hydroengorged material having an increased loft. Alternatively a nonwoven web is treated to have a heat set three-dimensional relief structure. The treated web is then hydroentangled with pulp to form a cotendered nonwoven/pulp composite fabric.
Abstract:
The present invention relates to disposable absorbent articles such as sanitary napkins, panty liners, baby diapers, adult incontinence articles and sweat pads. According to the present invention the absorbent article in the region designated for liquid deposition on its wearer facing surface has a single layer topsheet onto which liquid to be absorbed is provided during use of the article. The absorbent article further comprises a backsheet forming the liquid barrier surface and a unitary absorbent core between the topsheet and the backsheet. Importantly the unitary core provides improved liquid handling to the absorbent article and increases the masking, i.e. ability to hide stains due to absorbed liquid, of the article. This is particularly beneficial in the context of articles for absorption of liquids with high color intensity, such as menstrual liquid or urine of older adults.
Abstract:
The present invention is directed to a substrate, in particular textile material to which one or more antimicrobial and/or hydrophilic and/or stain release agents are adhered. The agent(s) is/are adhered to the substrate in such a manner that they are not released from the textile even if the textile is wetted or washed, so that the textile is reusable. Washability and/or usability of the textile are improved where one or more hydrophilic and/or stain release agents are adhered to the textile. The substrate can be used, e.g., in a reusable sanitary napkin or other hygiene product. The structure of the hygiene product is disclosed, together with a process of attaching the different layers of the hygiene product together by ultrasonic welding. The invention further relates to a method of finishing a substrate by applying and binding antimicrobial and/or hydrophilic and/or stain release agents to the substrate so that the agents are essentially irreversibly adhered to the finished substrate.
Abstract:
The present invention is directed to a substrate, in particular textile material to which one or more antimicrobial and/or hydrophilic and/or stain release agents are adhered. The agent(s) is/are adhered to the substrate in such a manner that they are not released from the textile even if the textile is wetted or washed, so that the textile is reusable. Washability and/or usability of the textile are improved where one or more hydrophilic and/or stain release agents are adhered to the textile. The substrate can be used, e.g., in a reusable sanitary napkin or other hygiene product. The structure of the hygiene product is disclosed, together with a process of attaching the different layers of the hygiene product together by ultrasonic welding. The invention further relates to a method of finishing a substrate by applying and binding antimicrobial and/or hydrophilic and/or stain release agents to the substrate so that the agents are essentially irreversibly adhered to the finished substrate.