Patent classifications
B29K2995/0068
Method of manufacturing absorbent article
A method of manufacturing an absorbent article. The method includes a first step of forming the absorbent body provided with the absorbent body concave portion; a second step of forming core embosses at least on both sides of the absorbent body concave portion by compressing the absorbent body from the skin-contacting side of the absorbent body; and a third step of stacking the liquid permeable topsheet on a top surface side of the absorbent body and forming the embossed portion.
Method For Fabricating Absorbent Articles
The present invention relates to a method for fabricating absorbent article having multiple layers, and deformed zones of targeted performance, and colored regions, the method comprising the steps of forming discrete features on at least one layer, printing colored regions on at least one layer, integrating multiple layers to form an absorbent assembly, and cutting the absorbent assembly into individual absorbent articles, wherein the steps are carried out continuously.
Process and apparatus for producing packets
Provided is a process for thermoforming a gas and liquid permeable layer (10) of thermoplastic material having an average thickness of less than 1.0 mm, the process comprising the steps of bringing the layer of thermoplastic material, at a temperature below that required for thermoforming, into contact with a mould (16) at a temperature above that of a thermoforming temperature of the thermoplastic material; pressing the mould into contact with the layer of thermoplastic material, the contact between mould and thermoplastic material causing heat to transfer from the mould to the thermoplastic material and raising the temperature of the thermoplastic material to a thermoformable temperature; such pressing thereby causing thermoforming of the thermoplastic material to conform to the shape of the mould.
Method And Apparatus For Making Capsules Provided With Filter
A method for making a capsule provided with a body containing a filtering element suitable for receiving a product for preparing a beverage, including: supplying a first film of thermoplastic material and a second film of filtering material to a forming mold according to a supplying direction, superimposing the second film on the first film, the forming mold including a lower half mold in which a plurality of cavities is obtained and an upper half mold provided with a plurality of stretching elements, one for each cavity, which are movable in one direction that is perpendicular to the supplying direction; pre-heating to a softening temperature the first film of thermoplastic material, by a pre-heating device arranged upstream of the forming mold; closing the forming mold bringing the lower half mold and the upper half mold towards one another until they clamp between one another the first film of thermoplastic material and the second film of filtering material; simultaneously forming in the cavities the bodies of the capsules and the respective filtering elements, using the stretching elements. An apparatus for making a capsule provided with a body containing a filtering element suitable for receiving a product for preparing a beverage, including: one forming mold including a lower half mold wherein a plurality of cavities is obtained and an upper half mold provided with a plurality of stretching elements, one for each cavity, movable in one direction, a supplying means that is movable in one advancement direction that is perpendicular to the direction, to supply simultaneously to the forming mold and to keep taut a first film of thermoplastic material and a second film of filtering material, a pre-heating device for pre-heating at least the first film of thermoplastic material before it is supplied to the forming mold.
PROCESS FOR MAKING FIBROUS LAYERS HAVING CHANNELS FOR ABSORBENT ARTICLES
Process for making discrete fibrous layers, comprising the steps of continuously depositing fibers in an endless series of molds, with two neighboring molds connected by a connecting section, transferring the resulting continuous fibrous layer to another endless moving surface and cutting the continuous fibrous layer at the connecting sections to form discrete fibrous layers. The molds comprise at least one raised element that prevents fiber deposition in the raised element area.
Method for making hydroformed expanded spun bonded nonwoven web
A method for hydroforming a spun bonded nonwoven web includes applying a plurality of pressurized liquid jets onto an original unexpanded spun bonded nonwoven web having an original loft while the web passes over a forming structure. A plurality of spun bonded fibers in the original unexpanded spun bonded nonwoven web are reoriented from a closely packed substantially horizontal orientation to a more loosely packed orientation with greater vertical spacing between the fibers to produce a hydroformed expanded spun bonded nonwoven web having a loft of at least about 1.3 times greater than the original loft of the original unexpanded spun bonded nonwoven web, and an air permeability of at least about 1.2 times greater than an original air permeability of the original unexpanded spun bonded nonwoven web. The hydroformed expanded spun bonded nonwoven web has a surface with a plurality of protuberances in a pattern corresponding to the pattern of apertures in the forming structure.
Improving the chemical stability of filtration membranes
Polyethers (A), whose main chain essentially consists of repeating units of the formulae (1) and (2) in alternating order, are useful as an additive to a porous polymer membrane, or as the main polymer constituent of a porous polymer membrane, for stabilizing said membrane against detrimental effects of oxidizing agents and/or for improving the stability of a filtration module comprising said membrane against detrimental effects of oxidizing agents. ##STR00001##
Method for fabricating absorbent articles
The present invention relates to a method for fabricating absorbent article having multiple layers, and deformed zones of targeted performance, and colored regions, the method comprising the steps of forming discrete features on at least one layer, printing colored regions on at least one layer, integrating multiple layers to form an absorbent assembly, and cutting the absorbent assembly into individual absorbent articles, wherein the steps are carried out continuously.
Method of making a hydroformed composite material
A method for hydroforming a composite precursor material includes forming a composite precursor material comprising an original spun bonded nonwoven web and a polymer film layer. The method also includes applying a plurality of pressurized liquid jets onto an outer surface of the original spun bonded nonwoven web while the composite precursor material passes over a forming structure to push and reorient a plurality of spun bonded fibers from a closely packed substantially horizontal orientation to a more loosely packed orientation with greater vertical spacing between the fibers to produce a hydroformed composite material comprising an expanded spun bonded nonwoven layer having a loft of at least about 1.3 times greater than the original loft of the original spun bonded nonwoven web, and an air permeability of at least about 1.2 times greater than an original air permeability of the original unexpanded spun bonded nonwoven web.
High-moisture-permeability, microporous plastic film, and its production method and apparatus
A high-moisture-permeability, microporous plastic film randomly having a lot of recesses having different opening diameters and depths, with clefts formed in the recesses, is produced by pressing a first pattern roll randomly having a lot of high-hardness, fine particles having sharp edges on a roll body surface to a flat-surface metal roll, to produce an anvil roll randomly having a lot of recesses on a metal roll surface; arranging a second pattern roll randomly having a lot of high-hardness, fine particles having sharp edges on a roll body surface oppositely to the anvil roll; and passing a plastic film through a gap between the second pattern roll and the anvil roll.