Patent classifications
D04H1/54
Method for producing a fibrous web containing polylactide fibres
A method for producing a fibrous web includes: (a) a fibrous ply containing polylactide fibers and, as necessary, other fibers are laid on a substrate in a random fiber arrangement, (b) initially a loose, pre-compressed nonwoven is created by applying a first pressure to the fibrous ply, the tear resistance of which nonwoven permits free bridging of a span between 0.1 m and 1 m before the nonwoven tears, (c) the pre-compressed nonwoven is then passed through the calender gap, wherein a pattern consisting of point or linear pressure zones is formed in the gap, with the fibers in the pressure zones being exposed to a second pressure, which is higher than the first pressure, and to a temperature such that the fibers fuse.
Method of making mounting mats for mounting a pollution control panel
A method of making mounting mats comprising the steps of: (i) supplying inorganic fibers through an inlet of a forming box having an open bottom positioned over a forming wire to form a mat of fibers on the forming wire, the forming box having rollers for breaking apart clumps of fibers and an endless belt screen; (ii) capturing clumps of fibers on the endless belt; (iii) conveying captured clumps of fibers on the endless belt so as to enable captured clumps to release from the belt and be broken apart by the rollers; (iv) transporting the mat of fibers out of the forming box by the forming wire; and (v) compressing and restraining the mat of fibers to thereby obtain a mounting mat having a desired thickness suitable for mounting a pollution control element in a pollution control device.
Method of making mounting mats for mounting a pollution control panel
A method of making mounting mats comprising the steps of: (i) supplying inorganic fibers through an inlet of a forming box having an open bottom positioned over a forming wire to form a mat of fibers on the forming wire, the forming box having rollers for breaking apart clumps of fibers and an endless belt screen; (ii) capturing clumps of fibers on the endless belt; (iii) conveying captured clumps of fibers on the endless belt so as to enable captured clumps to release from the belt and be broken apart by the rollers; (iv) transporting the mat of fibers out of the forming box by the forming wire; and (v) compressing and restraining the mat of fibers to thereby obtain a mounting mat having a desired thickness suitable for mounting a pollution control element in a pollution control device.
FIBROUS LAYER HAVING HYDROPHILIC PROPERTIES AND A FABRIC COMPRISING SUCH LAYER
A fibrous layer, wherein surface of the fibres has surface energy below 50 mN/m, characterised in that the calculated strike through time coefficient (cSTT) of the fibrous layer is below 20 and the fibrous layer is bonded in its entire volume at fibre to fibre contact bonding points, wherein the specific fibre surface is the surface area of the fibres in m.sup.2 per 1 m.sup.2 of the fibrous layer, basis weight is the weight of the layer in kg per 1 m.sup.2 of the fibrous layer, the specific void volume is the volume of empty spaces between the fibres in m.sup.3 per 1 m.sup.2 of the fibrous layer.
HYGIENIC TISSUE
A hygienic tissue includes a front side and a back side. The front side includes an absorbent material and the back side includes an absorbent material. A fluid resistant material is between the front side absorbent material and the back side absorbent material, and a pocket is on the back side for receiving one or more of a user's fingers. The back side defines an aperture for providing access to the pocket. The aperture is surrounded on one or more sides by the back side such that one or more pockets are formed along the back side. Attachments can be used to attach the tissue to a user's hand, wrist or ears. The tissue can be used, for example, when sneezing, coughing, nose blowing or touching contaminated surfaces, as a hygienic tissue, face mask, and wet wipe.
COMPOSITIONS COMPRISING MICROFIBRILATED CELLULOSE AND POLYMERS AND METHODS OF MANUFACTURING FIBRES AND NONWOVEN MATERIALS THEREFROM
Fibres and nonwoven materials comprising microfibrillated cellulose, and optionally inorganic particulate material and/or additional additives, and optionally a water soluble or dispersible polymer. Nonwoven materials made from fibres comprising microfibrillated cellulose, and optionally inorganic particulate material and/or a water soluble or dispersible polymer.
COMPOSITIONS COMPRISING MICROFIBRILATED CELLULOSE AND POLYMERS AND METHODS OF MANUFACTURING FIBRES AND NONWOVEN MATERIALS THEREFROM
Fibres and nonwoven materials comprising microfibrillated cellulose, and optionally inorganic particulate material and/or additional additives, and optionally a water soluble or dispersible polymer. Nonwoven materials made from fibres comprising microfibrillated cellulose, and optionally inorganic particulate material and/or a water soluble or dispersible polymer.
HIGH MOLECULAR AND LOW MOLECULAR WEIGHT FINE FIBERS AND TPU FINE FIBERS
In embodiments, the present invention provides a plurality of fine fiber strands made from a first polymer and a second polymer where the second polymer has a higher molecular weight than the first polymer. In preferred embodiments, the fine fiber strands have an average diameter of less than 2 micron, and the fine fiber strands have a length of at least 1 millimeter.
Polyester binder fiber
The problem to be solved by the present invention is to provide a polyester binder fiber having a low crystallization temperature and exhibiting improved adhesiveness and a fiber structure including the polyester binder fiber. The polyester binder fiber according to the present invention includes a polyester polymer and an amorphous polyether imide polymer in a proportion of 0.1 to 5.0 mass % (based on the mass of the polyester polymer), and the polyester binder fiber has a crystallization temperature measured by differential calorimetry in a range of 100° C. or higher and 250° C. or lower.
Bulkiness recovery apparatus for nonwoven fabric
A bulkiness recovery apparatus for nonwoven fabric includes a hot-air source; and a case unit including a base member, and first and second members. The first and second members face opposite first and second surfaces of the base member and partition first and second conveyor spaces. The base member has first and second hot-air chambers. The first and second surfaces have first and second jet inlets. The first and second hot-air chambers at least partly overlap in a direction normal to the first surface. First and second conveying directions of the nonwoven fabric in the first and second conveyor spaces are different. Hot air flows along the first conveying direction and is blasted from the first jet inlet into the first conveyor space. Hot air flows along the second conveying direction and is blasted from the second jet inlet into the second conveyor space.