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公开(公告)号：KR1019980025233A
公开(公告)日：1998-07-06
申请号：KR1019980011761
申请日：1998-04-03
Applicant: 한국화학연구원
IPC: D21C5/02
Abstract: (목적) 화장지 제조 원료를 비롯하여 백상지 제조 원료로서 사용하기 위하여 색지(color ledger) 고지를 탈색 하여 백색도를 향상시킬 수 있는 펄프의 재생방법을 제공함을 목적으로 한다.
(구성) 2 단계 표백 처리로 색지(color ledger) 고지 속의 염료를 탈색하는 방법으로 1 단계로는 강알칼리조건하에서 하이드로아황산나트륨(Sodium hydrosulfite)으로 환원처리를 한 다음, 2 단계로 알칼리조건하에서 하이포염소산나트륨(Sodium hypochlolite)으로 산화표백을 하여 색지 고지를 완전하게 탈색하는 표백화학 재생펄프의 제조 방법이다.-
公开(公告)号：KR1019970005636B1
公开(公告)日：1997-04-18
申请号：KR1019930015062
申请日：1993-08-03
Applicant: 한국화학연구원
IPC: D21H17/63
Abstract: The wooden pulp to be bleached is untwisted to 550-350ml CSF, the untwisted wooden pulp is divided into short fibers and long fibers by the separator. Next, the short fibers 10-30% among the whole wooden pulp is mixed with filler, a cationic polymer keeping agent is added only 0.02-0.1% for the whole fiber weights, that it causes the coherence between fine particles. These coherences and long fibers are remixed 60-40% for the whole wooden pulp weight, of which containing ability is enhanced inside a paper of filler, thus the high charged paper is manufactured to prevent the decreases of general strength.
Abstract translation: 要漂白的木浆解冻至550-350ml CSF，未经剪切的木浆通过分离器分成短纤维和长纤维。 接下来，整个木浆中的10-30％的短纤维与填料混合，对于整个纤维重量，阳离子聚合物保持剂仅添加0.02-0.1％，导致细颗粒之间的相干性。 对于整个木浆重量，这些共聚物和长纤维重新混合60-40％，其中在填料纸中含量增强，因此制造高带电纸以防止一般强度的降低。
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Patent Agency Ranking
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公开(公告)号：KR100319491B1
公开(公告)日：2002-04-22
申请号：KR1019980053566
申请日：1998-12-08
Applicant: 한국화학연구원
IPC: C02F5/02
Abstract: 본 발명은 재활용되는 제지 공정수의 칼슘 경도 조절방법에 관한 것으로서, 더욱 상세하게는 제지공정에서 단기순환되는 백수(White Water)에 탄산나트륨 또는 탄산수소나트륨을 첨가하여 공정수내의 칼슘이온을 탄산칼슘으로 침전시켜 제거하므로써 칼슘 경도를 조절하며, 또한 탄산칼슘 침전물을 제거함에 있어서는 부상부유처리법을 수행하고 이러한 침전물 제거공정후에도 미처 제거되지 않은 탄산칼슘은 지필에 보류시켜 초지계로부터 배출시킴으로써 공정수 재활용에 따른 칼슘 스케일 및 지방산 칼슘염의 발생을 미연에 방지하며 탄산칼슘 제거과정에서는 미세분도 함께 제거하여 탈수성을 개선하고 제지용 고분자 첨가제의 효율을 향상시키는 효과가 있을 뿐만 아니라 아울러 공정수를 폐쇄화시킴에 따라 폐수 배출로 비롯되는 환경오염을 줄� �고, 공정수 및 계 내에 투입된 에너지를 절약하면서 제지용 첨가제와 주원료인 섬유의 유출을 방지하게 되는 재활용되는 제지 공정수의 칼슘 경도 조절방법에 관한 것이다.
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公开(公告)号：KR100306039B1
公开(公告)日：2001-11-30
申请号：KR1019930014561
申请日：1993-07-29
Applicant: 한국화학연구원
IPC: D21H17/62
Abstract: PURPOSE: A manufacturing method of transformed-modified anhydrous rosin type sizing agent is provided which is characterized by reducing considerably absorption of water by strengthening hydrophobic part. CONSTITUTION: The transformed-modified anhydrous rosin type sizing agent is obtained by a process containing the steps of: making rosin and α-, β-unsaturated carboxylic acid type compound reacted at 180-240deg.C for 1-3hours; making multi-functional compound and the compound reacted at 200-240deg.C for 2-5hours; cooling the compound; and then adding anhydrous acetic acid to dewater and to polymerize at 120-150deg.C for 2-3hours. The α-, β-unsaturated carboxylic acid type compound is anhydrous maleic acid, maleic acid and phthalic acid. The multi-functional compound is polyhydric alcohol and multivalent amine.
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公开(公告)号：KR1020000038542A
公开(公告)日：2000-07-05
申请号：KR1019980053566
申请日：1998-12-08
Applicant: 한국화학연구원
IPC: C02F5/02
CPC classification number: C02F9/00 , C02F1/24 , C02F5/02 , C02F2103/28 , C02F2301/046
Abstract: PURPOSE: A method for controlling calcium hardness in paper manufacturing process is provided, which is characterized in that sodium carbonate or calcium hydro carbonate is added to white water to settle calcium ion. CONSTITUTION: Silo white water which is shortly circulated is purified by settling calcium ions, and the calcium carbonate ions are absorbed. Carbonate ion and sulfate ion react with calcium ion and produce precipitate. Sodium ion which replaces calcium ion does not react with other ions and does not produce scales in the water. The precipitates can be removed by using a sedimentation chest, but because the sedimentation chest requires an extra device for neutralizing, a floating method is appropriate. Carbon dioxide which replaces air can remove calcium carbonate and control the concentration of hydrogen ions.
Abstract translation: 目的：提供一种在制纸过程中控制钙硬度的方法，其特征在于将碳酸钠或碳酸氢钙加入到白水中以沉淀钙离子。 构成：通过沉淀钙离子来净化短循环的筒白水，碳酸钙离子被吸收。 碳酸根离子和硫酸根离子与钙离子反应并产生沉淀。 取代钙离子的钠离子不与其他离子反应，并且在水中不产生垢。 通过使用沉淀箱可以除去沉淀物，但由于沉淀箱需要额外的中和装置，所以浮法是合适的。 替代空气的二氧化碳可以除去碳酸钙并控制氢离子的浓度。
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公开(公告)号：KR1020000003300A
公开(公告)日：2000-01-15
申请号：KR1019980024525
申请日：1998-06-27
Applicant: 한국화학연구원
IPC: D21C5/02
CPC classification number: D21C5/005 , D21C5/02 , Y02W30/648
Abstract: PURPOSE: A corrugated cardboard generating method is provided to reduce the enzyme processing cost and to replace the imported corrugated cardboard and Kraft pulp consumed for manufacturing the raw paper of the high strength corrugated cardboard with the home-manufactured corrugated cardboard. CONSTITUTION: The corrugated cardboard generating method comprises the steps of: processing the floating of the corrugated cardboard; processing the polysaccharide hydrolytic enzyme to the fine fiber containing reject powder separated from the floating processing; and processing the long staple distributed from the floating processing.
Abstract translation: 目的：提供瓦楞纸板生产方法，以降低酶加工成本，并替代进口瓦楞纸板和牛皮纸浆，用于制造高强度瓦楞纸板原纸，并使用国产瓦楞纸板。 构成：瓦楞纸板生成方法包括以下步骤：处理瓦楞纸板的浮动; 将多糖水解酶加工成从漂浮处理中分离出的含有细屑的废弃粉末; 并处理从浮动处理分发的长钉。
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