A surface sizing agent and sheet for Ink-Jet printer

• Main Authors: LEE, HAE SEONG, YOO, SEUNG MIN, CHA, JUN HOE, JANG, SEUNG SUN, HAN, SANG GWON, KWAK, SANG HYEON
• Format: Patent
• Language: English; Korean
• Published: 15.03.2002
• Edition: 7
• Subjects: IMPREGNATING OR COATING OF PAPER; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TEXTILES; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G

PURPOSE: A surface-sizing agent composition for papermaking containing a cationic synthetic polymer, an amine salt and a quaternary ammonium-based level dyeing agent in a surface-sizing agent is provided. Also is provided ink jet printing paper obtained by using the agent. Whereby, the paper has improved color-color bleed and water resistance and generates no bronzing for specified black dye. CONSTITUTION: The composition comprises: 50 to 90% by weight of starch, a starch derivative and a mixture thereof; 1 to 45% by weight of a cationic synthetic polymer in which two or more nitrogen-containing groups selected from primary amine, secondary amine, tertiary amine, quaternary ammonium and a mixture thereof are covalently bonded; 1 to 45% by weight of a level dyeing agent selected from an amine salt, a quaternary ammonium salt in which an alkyl group containing 5 carbons or less is covalently bonded to nitrogen and a mixture thereof, wherein the mole ratio of an anionic group of the cationic synthetic polymer and level dying agent is 1:0.5 to 2.0. The ink jet printing paper is prepared by attaching 1 to 25% by weight of the obtained agent on the surface of paper. 본 발명은 제지용 표면사이즈제 조성물 및 이를 이용한 잉크젯 프린트 용지에 관한 것으로서, 더욱 상세하게는 전분 및 전분유도체와 양이온성 합성 고분자가 함유된 표면사이즈제 조성물에 있어, 상기 표면사이즈제 조성물 중에 유기계 양이온성 합성고분자와 1가의 양이온기를 지닌 아민염 및 4급 암모늄계 균염제를 함유시키고, 이를 초지기 표면사이즈부에서 반응사이즈제와 충진재가 함유된 지필에 부착시켜 잉크젯 프린터 용지를 제공함으로써, 내수성 및 문자선예성이 우수하고 갈변화현상이 없어 수성 잉크를 사용하는 사무용 드롭온디멘드(drop on demand)방식에서 프린팅 매체로 적합한 제지용 표면사이즈제 조성물 및 이를 이용한 잉크젯 프린트 용지에 관한 것이다. 특히, 본 발명은 셀룰로스섬유를 주성분으로 하는 종이제품으로서 초지기에서 잉크젯 프린트 적성이 우수한 프린트용지를 얻을 수 있다.