Electronic spinning apparatus, and a process of preparing nonwoven fabric using the thereof
First Claim
1. An electrospinning apparatus constructed by a spinning dope main tank 1, a metering pump 2, a nozzle block 4, a collector 6 positioned at the lower end of the nozzle block, for collecting spun fibers, a voltage generator 11, a plurality of units for transmitting a voltage generated in the voltage generator to the nozzle block 4 and the collector 6, wherein the electrospinning apparatus is characterized in that comprising:
- a spinning dope drop device 3 positioned between the metering pump 2 and the nozzle block 6, and the spinning dope drop device including;
(i) a sealed cylindrical shape, (ii) a spinning dope inducing tube 3c and a gas inletting tube 3b receiving gas through its lower end and having its gas inletting part connected to a filter 3a being aligned side by side at the upper portion of the spinning dope drop device, (iii) a spinning dope discharge tube 3d being protruded from the lower portion of which, and (iv) a hollow unit for dropping the spinning dope from the spinning dope inducing tube 3c being formed at the middle portion of which. 0000
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Accused Products
Abstract
The present invention relates to an electrospinning apparatus including a spinning dope drop device (3) formed between a metering pump (2) and a nozzle block (4), the spinning dope drop device (3) including (i) a sealed cylindrical shape, (ii) a spinning dope inducing tube 3c and a gas inletting tube 3b receiving gas through its lower end and having its gas inletting part connected to a filter 3a being aligned side by side at the upper portion of the spinning dope drop device, (iii) a spinning dope discharge tube 3d being protruded from the lower portion of which, and (iv) a hollow unit for dropping the spinning dope from the spinning dope inducing tube 3c being formed at the middle portion of which. In addition, a method for preparing a non-woven fabric drops flowing of a spinning dope at least once by passing the spinning dope through a spinning dope drop device (3) before supplying the spinning dope to a nozzle block (4) supplied with a voltage in electrospinning. As a result, the present invention can mass-produce the nano fibers and non-woven fabrics by maximizing fiber formation effects in electrospinning, and easily control a with and thickness of the non-woven fabric.
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Citations
21 Claims
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1. An electrospinning apparatus constructed by a spinning dope main tank 1, a metering pump 2, a nozzle block 4, a collector 6 positioned at the lower end of the nozzle block, for collecting spun fibers, a voltage generator 11, a plurality of units for transmitting a voltage generated in the voltage generator to the nozzle block 4 and the collector 6, wherein the electrospinning apparatus is characterized in that comprising:
a spinning dope drop device 3 positioned between the metering pump 2 and the nozzle block 6, and the spinning dope drop device including;
(i) a sealed cylindrical shape, (ii) a spinning dope inducing tube 3c and a gas inletting tube 3b receiving gas through its lower end and having its gas inletting part connected to a filter 3a being aligned side by side at the upper portion of the spinning dope drop device, (iii) a spinning dope discharge tube 3d being protruded from the lower portion of which, and (iv) a hollow unit for dropping the spinning dope from the spinning dope inducing tube 3c being formed at the middle portion of which. 0000 - View Dependent Claims (2, 3, 4, 5)
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6. A method for preparation of a non-woven fabric by electrospinning a thermoplastic or thermosetting resin spinning dope on a collector 6 from a nozzle block 4 and consecutively embossing a spun web, wherein the method is characterized in that comprising the step of:
passing a spinning dope from a spinning dope main tank 1 through a metering pump 2 and a spinning dope drop device 3 each other before supplying the spinning dope quantitatively supplied to the nozzle block 4 supplied with a voltage, and the spinning dope drop device 3 including;
(i) a sealed cylindrical shape, (ii) a spinning dope inducing tube 3c and a gas inletting tube 3b receiving gas through its lower end and having its gas inletting part connected to a filter 3a being aligned side by side at the upper portion of the spinning dope drop device, (iii) a spinning dope discharge tube 3d being protruded from the lower portion of which, and (iv) a hollow unit for dropping the spinning dope from the spinning dope inducing tube 3c being formed at the middle portion of which. - View Dependent Claims (7, 8, 9, 10)
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11. A method for preparing a non-woven fabric coated with nano fibers comprising the steps of:
- spinning the nano fibers on one surface or both surfaces of a transferred fiber material by one or more electrospinning apparatuses including a spinning dope drop device 3, and bonding the nano fibers, wherein the spinning dope drop device 3 formed between a metering pump and a nozzle block includes;
(i) a sealed cylindrical shape, (ii) a spinning dope inducing tube 3c and a gas inletting tube 3b receiving gas through its lower end and having its gas inletting part connected to a filter 3a being aligned side by side at the upper portion of the spinning dope drop device, (iii) a spinning dope discharge tube 3d being protruded from the lower portion of which, and (iv) a hollow unit for dropping the spinning dope from the spinning dope inducing tube 3c being formed at the middle portion of which. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
- spinning the nano fibers on one surface or both surfaces of a transferred fiber material by one or more electrospinning apparatuses including a spinning dope drop device 3, and bonding the nano fibers, wherein the spinning dope drop device 3 formed between a metering pump and a nozzle block includes;
Specification