Hyundai Motor Company

Iksung Co., Ltd.

Kia Motors Corporation

Kia Motor Company

Sun Jin Industry Co., Ltd.

Ki Wook Yang

Min Su Kim

Jung Wook Lee

Won Jin Seo

Hyeon Ho Kim

Jae CHan Lim

Bong Jik Lee

Dong Uk Lee

Jin Ho Hwang

Jong Hyuk Cha

Gi Won Kim

Kue Seok Kang

Moon Soo Lim

In Hee Song

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.

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

A multi-layered noise absorbing and insulating material includes a noise insulation material having opposing first and second major surfaces. The noise insulation material includes an adhesive resin including an air permeability-forming material. A first noise absorption material is adhered to the first major surface of the noise insulation material. A second noise absorption material is adhered to the second major surface of the noise insulation material. The multi-layered noise insulation absorbing and insulating material has air-permeability.

Multi-layered noise absorbing and insulating material having air-permeability

Disclosed is a method and apparatus for manufacturing a melt-blown fabric web, by which a melt-blown fabric web having improved filament cohesion and excellent bulky characteristics and sound-absorbing performance is manufactured. The apparatus includes a heat extruder for heating a thermoplastic resin composition and extruding the melted thermoplastic resin, a melt-blown fiber spinner for spinning the extruded thermoplastic resin as a melt-blown fiber in a filament form, a variable gas injector for injecting gas whose injection speed and injection quantity are continuously changed at random to the melt-blown fiber spun from the melt-blown fiber spinner to cause the injected gas to collide with the spun melt-blown fiber, and a collector for collecting the melt-blown fiber, which is spun from the melt-blown fiber spinner and collides with the gas, to form a melt-blown fabric web.

Method and apparatus for manufacturing melt-blown fabric web having random and bulky characteristics

Growing community of inventors

Chungcheongbuk-do, South Korea

Ki Wook Yang