Electrospun filaments
First Claim
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1. A method for producing a continuous filament from electrospun fibres, comprising:
- passing a conducting wire through free space to provide an elongate, three-dimensional collection surface accessible to electrospun fibres coming into contact with the conducting wire;
moving the conducting wire in a direction along its length;
forming an attractive electric field gradient between the conducting wire and a source of electrically charged fibres;
wherein the conducting wire is moved relative to the source of electrically charged fibres;
collecting the fibres on the elongate, three-dimensional collection surface of the conducting wire so as to form a continuous filament along the length of the underlying conducting wire;
wherein the elongate, three-dimensional collection surface of the conducting wire has a three-dimensional shape accessible in free space and the continuous filament thereby being formed with a corresponding three-dimensional shape that corresponds to the three-dimensional shape of the underlying conducting wire; and
separating the continuous filament from the elongate, three-dimensional collection surface of the underlying conducting wire whilst retaining the corresponding three-dimensional shape of the continuous filament.
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Abstract
A method for producing a continuous filament from electrospun fibers includes providing a conducting collection surface that is an elongate three-dimensional surface. An attractive electric field gradient is formed between the collection surface and a source of electrically charged fibers. The collection surface is moved in a longitudinal direction relative to the source of electrically charged fibers. The fibers are collected on the collection surface so as to form a continuous filament.
6 Citations
10 Claims
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1. A method for producing a continuous filament from electrospun fibres, comprising:
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passing a conducting wire through free space to provide an elongate, three-dimensional collection surface accessible to electrospun fibres coming into contact with the conducting wire; moving the conducting wire in a direction along its length; forming an attractive electric field gradient between the conducting wire and a source of electrically charged fibres; wherein the conducting wire is moved relative to the source of electrically charged fibres; collecting the fibres on the elongate, three-dimensional collection surface of the conducting wire so as to form a continuous filament along the length of the underlying conducting wire; wherein the elongate, three-dimensional collection surface of the conducting wire has a three-dimensional shape accessible in free space and the continuous filament thereby being formed with a corresponding three-dimensional shape that corresponds to the three-dimensional shape of the underlying conducting wire; and separating the continuous filament from the elongate, three-dimensional collection surface of the underlying conducting wire whilst retaining the corresponding three-dimensional shape of the continuous filament. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification