Abstract:
The invention overcomes the limitations described for the bonding of structured layers by providing a method for selectively reducing the bonding of materials. In its most generic form, the invention uses a bonding technique in combination with a printing method for modifying or covering at least one portion of a surface to either fully or partially prevent localised bonding. The structuring process may act upon the layers either before or after the bonding of the layers. The invention overcomes the limitations described in the application of affinity chromatography by providing a planar substrate with discrete optical detection flow cells that contain porous material and have connecting microchanneis for fluid delivery and/or removal, and a method for making the same.
Abstract:
A method of adhering pieces of first web (10) to second continuous web (11) using an adhesive applied to first web (10) from dispenser (19). First web (10) is transferred from roll (12) around rotating drum (14) where first web (10) is cut transversely across the width to form the pieces using knife roll (15) which rotatably cooperates with rotating drum (14). The cut pieces are then transferred one-by-one from rotating drum (14) onto second continuous web (11) using transfer roll (16). In order to maintain first web (10) securely against rotating drum (14) during operation, an electric static charge is applied to the first web (10) or to rotating drum (14) using electrostatic charging unit (17).
Abstract:
Partie femelle d'un autoagrippant à crochets et boucles, constituée d'un film en matière plastique et de filaments indépendants fixés sur l'une des faces du film, caractérisée en ce que chaque filament est ancré sur une partie de sa longueur dans le film en matière plastique, tandis que sur d'autres parties, il est à distance du film pour former les boucles ; - le film étant un matériau non élastique et non thermorétractable ; et - les filaments ont un titre inférieur à 10, de préférence inférieure ou égale à 7,7, notamment compris entre 2 et 5 décitex.
Abstract:
A method of folding a material during the process of making disposable absorbent articles, such as sanitary napkins and the like, is disclosed. The method utilizes a static charge (72) to align the material to be folded and to, at least temporarily, retain the material in a folded configuration.
Abstract:
An improved approach toward the electrostatic deposition of activatabie adhesive formulations is disclosed. The activatabie adhesive formulations are formed for transforming from a dry powder precursor layer to a precursor layer film.
Abstract:
A method of manufacturing an article includes simultaneously holding, with a vacuum device, a first object and a second object that are overlapped and abutted against each other. The method also includes simultaneously transporting the first and second objects relative to a machine. Still further, the method includes attaching the first and second objects together with the machine.
Abstract:
A fluidic device includes a porous substrate, a non-wetting region extending through a first portion of the porous substrate from a first side of the substrate, in which the non-wetting region is impermeable to fluid transport, and a wetting region extending through a second portion of the porous substrate from a second side of the substrate, in which the wetting region is permeable to fluid transport.
Abstract:
Various processes and relevant devices for causing polymer films, which are extensible with the help of the devices disclosed in Patent Application WO No. 98/32668 of 01/23/98 and in its applications, to adhere to the edges of openings of plastic or PET or even metal containers, by releasing electrostatic charges opposite in sign to those of containers and/or the polymer films to be applied thereto. P.S. - The processes derive from a single general inventive concept
Abstract:
Dispositif de fabrication de sacs souples au moyen de deux films superposés réalisés en un même matériau, comportant une source laser pour réaliser une soudure entre les deux films. Les deux films étant avantageusement en polyéthylène chargé en EVA. Le dispositif comporte également des moyens de découpe.