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감압기록지용 마이크로 캡슐의 제조방법Manufacturing method of microcapsule for pressure-sensitive recording paper
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
Claims (1)
감압기록지용 마이크로 캡슐을 제조함에 있어서, 다음 공정순으로 행해짐을 특징으로 하는 감압지용 마이크로 캡슐의 제조방법, 제1공정; 스칠렌 무수말레인산 공중합체를 증류수에 투입하고, 가성소오다로 pH를 4.5-5.5가 되게 조절한 다음, 90°C로 1시간 가열하여 얻어진 용액을 5%수용액으로 희석한다. 제2공정; 메칠비닐 에테르 무수말레인산 공중합체를 증류수에 녹여서 5%수용액으로 만들고, 이 용액의 pH를 4.5로 조절한다. 제3공정; 제1공정의 5%수용액과 제2공정의 5%용액을 중량%로 1:1혼합하여 유화제용액을 만든다. 제4공정; 무색염료용액 100중량%를 고비점오일에 용해시켜서 3%소수성 염료용액 100중량%를 제조한다. 제5공정; 제3공정의 유화제용액과 제4공정의 소수성 염료용액을 혼합하여 유화액을 얻는다. 제6공정;37%포르마린 12중량%와 메라민 6중량%를 pH10에서 반응시켜 메라민 포르마린 예비축합물을 제조하고, 이 예비축합물에 제5공정의 유화액을 투입하여 50%고형분을 얻은 다음, 70°C 분위기에서 2시간 반응시켜 캡슐을 제조한다.A method of manufacturing a pressure-sensitive recording paper microcapsule, the method comprising the steps of: The maleic anhydride copolymer is added to distilled water, the pH is adjusted to 4.5-5.5 with caustic soda, and the solution obtained by heating at 90 ° C. for 1 hour is diluted with 5% aqueous solution. Second process; Methylvinyl ether maleic anhydride copolymer is dissolved in distilled water to form a 5% aqueous solution and the pH of this solution is adjusted to 4.5. Third process; 5% aqueous solution of the first step and 5% solution of the second step are mixed 1: 1 by weight to form an emulsifier solution. 4th process; 100% by weight of the colorless dye solution was dissolved in high boiling oil to prepare 100% by weight of 3% hydrophobic dye solution. Fifth step; The emulsion solution is obtained by mixing the emulsifier solution of the third step and the hydrophobic dye solution of the fourth step. Step 6; reacting 12% by weight of 37% formalin and 6% by weight of melamine at pH 10 to prepare a melamine formarin precondensate, and the emulsion was added to the precondensate in the fifth step to obtain 50% solids, and then 70 A capsule is prepared by reacting for 2 hours in an atmosphere of ° C.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890001435A1989-02-091989-02-09
Manufacturing method of microcapsule for pressure-sensitive recording paper
KR900012773A
(en)