Meta-Aramid Paper Having Excellent Withstand Voltage and whiteness and Method for Preparing the Same

• Main Authors: PARK, SEONG YOON, LEE, MIN SUNG, SEO, YOUNG HOON, JANG, JOON HYUNG, LEE, HYEON YEONG
• Format: Patent
• Language: English; Korean
• Published: 31.05.2019
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; IMPREGNATING OR COATING OF PAPER; INSULATORS; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TEXTILES; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G

The present invention relates to a method for producing meta-aramid paper formed from meta-aramid pulp containing meta-aramid fibrids. Specifically, the present invention relates to meta-aramid paper improved in dielectric strength and whiteness index, wherein the meta-aramid fibrids are washed with water at 60 to 70°C to minimize a residual amount of a solvent before being formed into meta-aramid pulp; and a production method thereof. 본 발명은 메타 아라미드 피브리드를 함유하는 메타 아라미드 펄프로 형성되는 메타 아라미드 페이퍼 제조방법에 있어서, 상기 메타 아라미드 피브리드는 메타 아라미드 펄프로 형성되기 전에 60~70℃의 수세수로 수세하여 용매의 잔존량의 최소화하는 것을 특징으로 하는 내전압강도 및 백색도가 향샹된 메타 아라미드 페이퍼 및 그의 제조방법에 관한 것이다.