Melt-blown fiber web with improved concentration force and elasticity and method and apparatus for manufacturing the same

Abstract

Disclosed is a melt-blown fiber web with improved concentration force and elasticity, whereby a melt-blown fabric is cut and sealed at predetermined intervals using knives having arbitrary patterns so that concentration force and elasticity of the melt-blown fiber web can be improved without degrading the inherent function of the fiber web. Further disclosed are a method and apparatus for manufacturing the melt-blown fiber web. The melt-blown fiber web includes thermoplastic filaments, wherein cutting portions and sealing portions are arranged on top and bottom surfaces of the fiber web at predetermined intervals along a thickness of the fiber web so that a concentration force and elasticity of the fiber web are improved.

What is claimed is: 
     
         1 . A melt-blown fiber web comprising thermoplastic filaments, the fiber web having cutting portions and sealing portions arranged on top and bottom surfaces of the fiber web at predetermined intervals along a thickness of the fiber web so that a concentration force and elasticity of the fiber web are improved. 
     
     
         2 . The melt-blown fiber web of  claim 1 , wherein a shape of each of the cutting portions and the sealing portions is selected from the group consisting of a straight line shape, a cross shape, an X-shape, a circle, and a  -shape, and a combination thereof. 
     
     
         3 . A method of manufacturing a melt-blown fiber web, the method comprising:
 manufacturing a melt-blown fiber web by melting, extruding, and radiating a thermoplastic resin composite, and allowing a high-temperature and high-speed gas to collide with filaments simultaneously with radiating;   forming cutting portions and sealing portions in the melt-blown fiber web at predetermined patterns and at predetermined intervals by applying a shearing force to a surface of the manufactured melt-blown fiber web using knives and by fusing the melt-blown fiber web by heat; and   winding the melt-blown fiber web in which the cutting portions and the sealing portions are formed.   
     
     
         4 . The method of  claim 3 , wherein a shape of each of the cutting portions and the sealing portions is selected from the group consisting of a straight line shape, a cross shape, an X-shape, a circle, and a  -shape, and a combination thereof. 
     
     
         5 . An apparatus for manufacturing a melt-blown fiber web with improved concentration force and elasticity using a thermoplastic resin, the apparatus comprising:
 an unwinder that unwinds a predetermined amount of a wound melt-blown fiber web   a transfer unit that transfers the melt-blown fiber web unwound by the unwinder;   a cutting and sealing unit that cuts and fuses a surface of the transferred melt-blown fiber web in predetermined patterns; and   a winding roll that winds the melt-blown fiber web.   
     
     
         6 . The apparatus of  claim 5 , wherein the cutting and sealing unit comprises a rolling roll having an outer circumferential surface, a plurality of knives having a predetermined shape that are arranged at predetermined intervals on the outer circumferential surface of the cutting and sealing unit, wherein rotation of the knives pressurizes the surface of the melt-blown fiber web at predetermined intervals thereby cutting and sealing the melt-blown fiber web. 
     
     
         7 . The apparatus of  claim 5 , wherein the cutting and sealing unit comprises a press mold that has knives having a predetermined shape arranged at predetermined intervals on a bottom surface of the cutting and sealing unit, the knives being vertically movable, wherein vertical movement of the knives pressurizes the surface of the melt-blown fiber web at predetermined intervals thereby cutting and sealing the melt-blown fiber web. 
     
     
         8 . The apparatus of  claim 5 , wherein the cutting and sealing unit comprises a press mold that has knives having a predetermined shape arranged at predetermined intervals on a bottom surface of the cutting and sealing unit and a steel plate as a support plate, the knives being vertically movable, wherein vertical movement of the knives pressurizes the surface of the melt-blown fiber web at predetermined intervals using the steel plate thereby cutting and sealing the melt-blown fiber web. 
     
     
         9 . The apparatus of  claim 6 , wherein, when the knives form cutting portions and sealing portions on the melt-blown fiber web, the sealing portions are completely cut and sealed by a shearing force of the knives based on a thickness of a blade of each of the knives, or the sealing portions are cut with a minimum thickness of about 0.16 to 0.2 mm due to pressure of the knives and then are sealed.