D01D7/00

Adhesive thread drawing processes

The adhesive thread drawing processes include the steps of feeding, mixing and stirring, first drying, hot melt extrusion, first cooling, stretch extension, second cooling, winding-strands-into-roll, and second drying. The threads made by the processes are woven into fabric which has a certain level of stickiness so as to be attached onto objects without using glue and adhesive, and the fabric is flat and neat when it is attached to an object.

Handheld/portable apparatus for the production of microfibers, submicron fibers and nanofibers

Described herein are portable apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Portable apparatuses that may be used to create fibers are described.

Method and apparatus for manufacturing natural fiber based staple fibers on a common surface

The application relates to a method and apparatus for manufacturing a natural fiber based staple fibers. The application further relates to the staple fibers, staple fiber based raw wool and products comprising such. A method comprises providing a cellulose suspension (101, 310, 510) including water, refined cellulose fibrils and at least one rheology modifier, directing the cellulose suspension through a nozzle (102, 320, 520) onto a surface (300, 400, 500), drying the cellulose suspension onto the surface (103, 300, 400, 500) for forming a fiber (350, 550), and cutting the cellulose suspension on the surface for forming staple fibers (105).

Method and apparatus for manufacturing natural fiber based staple fibers on a common surface

The application relates to a method and apparatus for manufacturing a natural fiber based staple fibers. The application further relates to the staple fibers, staple fiber based raw wool and products comprising such. A method comprises providing a cellulose suspension (101, 310, 510) including water, refined cellulose fibrils and at least one rheology modifier, directing the cellulose suspension through a nozzle (102, 320, 520) onto a surface (300, 400, 500), drying the cellulose suspension onto the surface (103, 300, 400, 500) for forming a fiber (350, 550), and cutting the cellulose suspension on the surface for forming staple fibers (105).

CELL CULTURE SUBSTRATE MADE OF NONWOVEN FABRIC MANUFACTURED USING ELECTROSPINNING AND METHOD OF MANUFACTURING THE SAME

A cell culture substrate used for growing mesenchymal stem cells (MSC) while maintaining the differentiation potency of the mesenchymal stem cells includes a nonwoven fabric made of resin fibers spun using an electrospinning method. The nonwoven fabric includes a plurality of resin fibers having outer diameters of 10-50 μm. The plurality of resin fibers are intertangled in random directions. A mesh structure is formed by the intertangled plurality of resin fibers adhering and joining together at locations where the resin fibers contact one another. The mesh structure forms mesh openings that have a substantially elliptical shape with a diameter of 100-200 μm and that are surrounded by curved fibers. Innumerable air bubble pores having diameters of 0.1-3 μm are formed over the entire surface of the fibers making up the nonwoven fabric.

CELL CULTURE SUBSTRATE MADE OF NONWOVEN FABRIC MANUFACTURED USING ELECTROSPINNING AND METHOD OF MANUFACTURING THE SAME

A cell culture substrate used for growing mesenchymal stem cells (MSC) while maintaining the differentiation potency of the mesenchymal stem cells includes a nonwoven fabric made of resin fibers spun using an electrospinning method. The nonwoven fabric includes a plurality of resin fibers having outer diameters of 10-50 μm. The plurality of resin fibers are intertangled in random directions. A mesh structure is formed by the intertangled plurality of resin fibers adhering and joining together at locations where the resin fibers contact one another. The mesh structure forms mesh openings that have a substantially elliptical shape with a diameter of 100-200 μm and that are surrounded by curved fibers. Innumerable air bubble pores having diameters of 0.1-3 μm are formed over the entire surface of the fibers making up the nonwoven fabric.

FORCESPINNING OF FIBERS AND FILAMENTS

Among other things, the inventive subject matter generally relates to nonwoven textiles consisting of webs of superfine fibers, i.e., fibers with diameters in nanoscale or micronscale ranges, for use in articles that have, for example a predetermined degree of waterproofness with breathability, or windproofness with breathability.

Methods of creating soft and lofty nonwoven webs

A method of creating a soft and lofty continuous fiber nonwoven web is provided. The method includes providing two molten polymer components having different melting temperatures to a spinneret defining a plurality of orifices, and flowing a fluid intermediate the spinneret and a moving porous member. The moving porous member is positioned below the spinneret. The method includes using the fluid to draw or push the two molten polymer components, in a direction that is toward the moving porous member, through at least some of the plurality of orifices to form a plurality of individual bi-component continuous fiber strands. The method includes depositing the continuous fiber strands on the moving porous member at a first location to create an intermediate continuous fiber nonwoven web, and removing and/or diverting some of the fluid proximate to the first location to maintain loft and softness in the deposited intermediate continuous fiber nonwoven web.

PRODUCTION METHOD FOR NANOFIBER AGGREGATES, PRODUCTION APPARATUS FOR NANOFIBER AGGREGATES, AND NANOFIBER AGGREGATES
20220195646 · 2022-06-23 ·

A production method and production apparatus are provided for nanofiber aggregates produced and stretched into a fine-diameter fibrous shape by spraying a high-temperature, high-pressure gas from gas discharge ports into a polymer solution discharged from a solution discharge port. The nanofiber aggregates are collected into fine-diameter fibers in a high-temperature, high-pressure gas wind force by discharging secondary high-pressure air from high-pressure air blowing discharge ports in an intersecting pattern into a nanofiber flow during production and stretching. Further provided, as an effect, are nanofiber aggregates: having the characteristic that the distribution of fiber diameters thicker than the central fiber diameter and the distribution of fiber diameters thinner than the central fiber diameter are equal or better; and having excellent oil absorption capacity and oil keeping capacity.

CENTRIFUGAL SPINNING APPARATUS AND PLANAR RECEIVING-TYPE CENTRIFUGAL SPINNING AUTOMATIC PRODUCTION DEVICE

The present invention discloses a centrifugal spinning apparatus, including a frame, a spinning device, a feeding device for providing a spinning solution to the spinning device, and a collection device for collecting centrifugal spinning fibers ejected by the spinning device. The collection device is horizontally disposed below the spinning device, to enable the centrifugal spinning fibers ejected by the spinning device to be attached to a surface of the collection device. A planar receiving-type centrifugal spinning automatic production device using the centrifugal spinning apparatus breaks through existing centrifugal spinning based on ring collection and centrifugal spinning technologies based on electrostatic collection, resolves a preparation problem of continuous filament of the centrifugal spinning, and achieves mass production of the centrifugal spinning. The whole production process is completed automatically without manual intervention.