JPH0280684A - Ink-removing agent - Google Patents
Ink-removing agentInfo
- Publication number
- JPH0280684A JPH0280684A JP63227216A JP22721688A JPH0280684A JP H0280684 A JPH0280684 A JP H0280684A JP 63227216 A JP63227216 A JP 63227216A JP 22721688 A JP22721688 A JP 22721688A JP H0280684 A JPH0280684 A JP H0280684A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- pulp
- lipase
- deinking
- sodium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004367 Lipase Substances 0.000 claims abstract description 29
- 102000004882 Lipase Human genes 0.000 claims abstract description 29
- 108090001060 Lipase Proteins 0.000 claims abstract description 29
- 235000019421 lipase Nutrition 0.000 claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 239000002761 deinking Substances 0.000 claims description 23
- 240000006439 Aspergillus oryzae Species 0.000 abstract description 2
- 241000223198 Humicola Species 0.000 abstract description 2
- 241000223257 Thermomyces Species 0.000 abstract description 2
- 239000003513 alkali Substances 0.000 abstract 2
- 235000002247 Aspergillus oryzae Nutrition 0.000 abstract 1
- 230000002068 genetic effect Effects 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 14
- 239000000976 ink Substances 0.000 description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 239000010893 paper waste Substances 0.000 description 11
- 238000011282 treatment Methods 0.000 description 11
- 239000004094 surface-active agent Substances 0.000 description 9
- 235000014113 dietary fatty acids Nutrition 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000000194 fatty acid Substances 0.000 description 7
- 229930195729 fatty acid Natural products 0.000 description 7
- -1 fatty acid salts Chemical class 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 239000003921 oil Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical class C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 5
- 239000004115 Sodium Silicate Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000013055 pulp slurry Substances 0.000 description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 5
- 229910052911 sodium silicate Inorganic materials 0.000 description 5
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 238000005188 flotation Methods 0.000 description 4
- 238000007645 offset printing Methods 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 239000003981 vehicle Substances 0.000 description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000004480 active ingredient Substances 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 239000007844 bleaching agent Substances 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000003925 fat Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002736 nonionic surfactant Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002280 amphoteric surfactant Substances 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 238000010494 dissociation reaction Methods 0.000 description 2
- 230000005593 dissociations Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 2
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- GUBGYTABKSRVRQ-WFVLMXAXSA-N DEAE-cellulose Chemical compound OC1C(O)C(O)C(CO)O[C@H]1O[C@@H]1C(CO)OC(O)C(O)C1O GUBGYTABKSRVRQ-WFVLMXAXSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- WPUMTJGUQUYPIV-JIZZDEOASA-L disodium (S)-malate Chemical compound [Na+].[Na+].[O-]C(=O)[C@@H](O)CC([O-])=O WPUMTJGUQUYPIV-JIZZDEOASA-L 0.000 description 1
- 238000006911 enzymatic reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000002523 gelfiltration Methods 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 238000007644 letterpress printing Methods 0.000 description 1
- 235000019626 lipase activity Nutrition 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- LQPLDXQVILYOOL-UHFFFAOYSA-I pentasodium;2-[bis[2-[bis(carboxylatomethyl)amino]ethyl]amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC(=O)[O-])CCN(CC([O-])=O)CC([O-])=O LQPLDXQVILYOOL-UHFFFAOYSA-I 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- 235000019265 sodium DL-malate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 235000012207 sodium gluconate Nutrition 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 239000001394 sodium malate Substances 0.000 description 1
- DZCAZXAJPZCSCU-UHFFFAOYSA-K sodium nitrilotriacetate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CC([O-])=O DZCAZXAJPZCSCU-UHFFFAOYSA-K 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- UGTZMIPZNRIWHX-UHFFFAOYSA-K sodium trimetaphosphate Chemical compound [Na+].[Na+].[Na+].[O-]P1(=O)OP([O-])(=O)OP([O-])(=O)O1 UGTZMIPZNRIWHX-UHFFFAOYSA-K 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002888 zwitterionic surfactant Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Landscapes
- Paints Or Removers (AREA)
- Paper (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の
本発明は、新聞、雑誌、書籍、ちらし等の印刷古紙から
再生パルプを製造する際に用いられる脱墨剤に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a deinking agent used in producing recycled pulp from printed waste paper such as newspapers, magazines, books, handbills, etc.
丈來夏肢生
製紙用パルプ原料の涸渇化に伴い、印刷古紙からパルプ
を再生しこれを製紙に再利用することが古くから行われ
ている。印刷古紙を再生する場合１通常パルパーなどの
離解機が使用され、機械力で印刷古紙を離解しながら、
これにアルカリ薬品と脱墨剤および必要に応じて漂白剤
を作用させてインキを古紙から脱離させ、脱離インキを
フローテーション方式、フローテーション／水洗折衷方
式、水洗方式のいずれかの方式でパルプスラリーから分
離する方法が採用されている。BACKGROUND OF THE INVENTION With the depletion of pulp raw materials for papermaking, recycling pulp from used printing paper and reusing it for papermaking has been practiced for a long time. When recycling used printed paper 1. Usually, a disintegrating machine such as a pulper is used, and while disintegrating the used printed paper with mechanical force,
This is then treated with an alkaline chemical, a deinking agent, and if necessary, a bleaching agent to remove the ink from the waste paper. A method of separating it from pulp slurry has been adopted.
また最近の古紙は、印刷物の美粧化、堅牢化、印刷作業
性の向上等の要求から、オフセットインキなどに見られ
る様に、ビヒクル中に乾性油や石油樹脂、フェノール樹
脂等の熱硬化性樹脂を使用する事が多くなる傾向にある
。これらのビヒクルは熱や光で硬化する性質を有するた
め、紙とインキの付着力が強く脱インキしにくい傾向に
あり、従来のアルキルベンゼンスルホン酸塩等の陰イオ
ン界面活性剤、高級アルコールエチレンオキシド付加物
等の非イオン界面活性剤、アミンオキシド等の両性イオ
ン界面活性剤などの脱墨剤では、必ずしも高白色度の再
生紙を得ることが難かしい状況になっている。In addition, in recent years, waste paper has been produced using thermosetting resins such as drying oil, petroleum resin, phenol resin, etc. in the vehicle, as seen in offset inks, due to demands for making printed materials more beautiful, more durable, and improving printing workability. There is a tendency to use more and more. These vehicles have the property of curing with heat or light, so they tend to have strong adhesion between paper and ink and are difficult to deink. It is difficult to obtain recycled paper with high whiteness using deinking agents such as nonionic surfactants such as amine oxide and zwitterionic surfactants such as amine oxide.
が しようとする
本発明は、特にオフセット印刷古紙に由来するインキを
効率良く除去し、高品質の再生パルプを得ることのでき
る脱墨剤を提供するものである。The object of the present invention is to provide a deinking agent that can efficiently remove ink originating from offset printing waste paper and obtain high-quality recycled pulp.
月見Ｌ１戎
本発明の脱墨剤は、アルカリリパーゼを含有することを
特徴とする。Tsukimi L1 Ebisu The deinking agent of the present invention is characterized by containing alkaline lipase.
以下、本発明についてさらに詳細に説明する。The present invention will be explained in more detail below.
本発明に用いるアルカリリパーゼは、細菌。The alkaline lipase used in the present invention is bacterial.
菌類等に由来するもののうち、比較的高い至適ｐＨをも
つものであり、至適ｐＨが８．０〜１２．０．好ましく
は８．１〜１１．５のものである。このようなアルカリ
リパーゼは、アルカリ領域においても、中性もしくは酸
性領域のリパーゼ活性の３０％以上の酵素活性を保持す
る。Among those derived from fungi, it has a relatively high optimum pH, and the optimum pH is 8.0 to 12.0. Preferably it is 8.1 to 11.5. Such alkaline lipase retains an enzyme activity that is 30% or more of the lipase activity in a neutral or acidic region even in an alkaline region.
アルカリリパーゼとしては、例えば、種々の起源のアル
カリリパーゼ培養液から、公知の方法すなわちアセトン
、メタノール、エタノール等の有機溶媒による沈澱方法
、硫酸等による塩析法、ＤＥＡＥ−セルロース等のクロ
マトグラフィー法やゲルｒ過法等により分画した粗酵素
や精製酵素などが使用できる。Alkaline lipase can be prepared by, for example, using known methods such as precipitation using organic solvents such as acetone, methanol, and ethanol, salting out using sulfuric acid, chromatography using DEAE-cellulose, etc., from alkaline lipase culture solutions of various origins. Crude enzymes or purified enzymes fractionated by gel filtration or the like can be used.
本発明に使用される特に好ましいアルカリリパーゼとし
て次のものが例示される。The following are exemplified as particularly preferable alkaline lipases used in the present invention.
（１）アスペルギルスオリザ（Ａｓｐｅｒｇｉｌｌｕｓ
ｏｒｙｚａｅ）から遺伝子操作により産生されたアルカ
リリパーゼ（特開昭６２−２７２９８８号公報）６（２
）サーモミセス（Ｔｈｅｒｍｏｍｙｃｅｓ）属を含むフ
ミコラ（Ｈｕｍｉｃｏｌａ）属の菌株より産生されたア
ルカリリパーゼ（特開昭６２−６８６９７号公報）。(1) Aspergillus oryza
6 (2
) Alkaline lipase produced from a strain of the Humicola genus including the Thermomyces genus (Japanese Unexamined Patent Publication No. 62-68697).
この他、市販のものとして株式会社大阪細菌研究所製オ
リバーゼ、東洋醸造株式会社製リパーゼＬＰ、生化学工
業株式会社製アルカリ性リパーゼなどが挙げられる。In addition, commercially available products include Olivase manufactured by Osaka Bacteria Research Institute, Lipase LP manufactured by Toyo Jozo Co., Ltd., and Alkaline Lipase manufactured by Seikagaku Corporation.
本発明はこれらアルカリリパーゼの酵素反、応により、
特にオフセット印刷用インキ中のビヒクルに存在する乾
性油等の油脂を加水分解し、優れた脱墨効果を発揮する
が、更に界面活性剤を併用することにより一層優れた脱
墨性能を示すものである。The present invention uses these enzymatic reactions of alkaline lipase to
In particular, it hydrolyzes the oils and fats such as drying oil present in the vehicle of offset printing ink, and exhibits an excellent deinking effect, but it also shows even better deinking performance when used in combination with a surfactant. be.
本発明で使用可能な界面活性剤は、陰イオン界面活性剤
、非イオン界面活性剤、両性イオン界面活性剤等の中か
ら選ばれる１種または２種以上である。The surfactant that can be used in the present invention is one or more selected from anionic surfactants, nonionic surfactants, amphoteric surfactants, and the like.
具体的には、高級脂肪酸塩、アルキルベンゼンスルホン
酸塩、α−オレフィンスルホン酸塩、高級アルコール硫
酸エステル塩、ジアルキルスルホコハク酸塩等の陰イオ
ン界面活性剤；高級アルコールエチレンオキサイド付加
物、アルキルフェノールエチレンオキサイド付加物、脂
肪酸エチレンオキサイド付加物、脂肪酸アミド、脂肪酸
アミドエチレンオキサイド付加物、高級アルコールエチ
レンオキサイド・プロピレンオキサイド（ブロックまた
はランダム）付加物、脂肪酸エチレンオキサイド・プロ
ピレンオキサイド付加物、油脂エチレンオキサイド付加
物、油脂エチレンオキサイド・プロピレンオキサイド付
加物、ロジン酸エチレンオキサイド付加物、ロジン酸エ
チレンオキサイド・プロピレンオキサイド付加物等の非
イオン界面活性剤；アミンオキサイド、アルキルベタイ
ン等の両性界面活性剤が挙げられる。この場合、アルカ
リリパーゼと界面活性剤との重量配合が１１５００〜ｌ
／３の範囲で特に優れた脱墨効果を発揮する。Specifically, anionic surfactants such as higher fatty acid salts, alkylbenzene sulfonates, α-olefin sulfonates, higher alcohol sulfate ester salts, dialkyl sulfosuccinates; higher alcohol ethylene oxide adducts, alkylphenol ethylene oxide adducts; fatty acid ethylene oxide adduct, fatty acid amide, fatty acid amide ethylene oxide adduct, higher alcohol ethylene oxide/propylene oxide (block or random) adduct, fatty acid ethylene oxide/propylene oxide adduct, oil/fat ethylene oxide adduct, oil/fat ethylene Examples include nonionic surfactants such as oxide/propylene oxide adducts, rosin acid ethylene oxide adducts, and rosin acid ethylene oxide/propylene oxide adducts; amphoteric surfactants such as amine oxides and alkyl betaines. In this case, the weight composition of alkaline lipase and surfactant is 11,500 to 1
A particularly excellent deinking effect is exhibited within the range of /3.
脱墨処理に際しては、水酸化ナトリウムやケイ酸ナトリ
ウム、塩化ナトリウム、硫酸ナトリウム、炭酸ナトリウ
ム、炭酸カルシウム、塩化カルシウム、トリポリリン酸
ナトリウム、トリメタリン酸ナトリウム、ヘキサメタリ
ン酸ナトリウム、ピロリン酸ナトリウム、エチレンジア
ミン四酢酸ナトリウム、ニトリロ三酢酸ナトリウム、ジ
エチレントリアミン五酢酸ナトリウム、カルボキシメチ
ルセルロース、グルコン酸ナトリウム、リンゴ酸ナトリ
ウム等のアルカリ剤やビルダー、過酸化水素等の漂白剤
を併用することにより、より一層優れた脱墨効果を得る
ことができる。For deinking treatment, use sodium hydroxide, sodium silicate, sodium chloride, sodium sulfate, sodium carbonate, calcium carbonate, calcium chloride, sodium tripolyphosphate, sodium trimetaphosphate, sodium hexametaphosphate, sodium pyrophosphate, sodium ethylenediaminetetraacetate, An even better deinking effect can be obtained by using together with an alkaline agent such as sodium nitrilotriacetate, sodium diethylenetriaminepentaacetate, carboxymethyl cellulose, sodium gluconate, or sodium malate, a builder, or a bleaching agent such as hydrogen peroxide. Can be done.
本発明によるアルカリリパーゼの用法としては、上記の
脱墨薬品を加えるか、または脱墨薬品と一諸にアルカリ
リパーゼを添加して３０〜５０℃で１〜１２時間放置す
る。漂白剤として過酸化水素を使用する場合、過酸化水
素濃度が充分低い状態（例えば、０．８％以下）におい
てアルカリリパーゼを添加することが望ましい。高濃度
の過酸化水素により、アルカリリパーゼが失活する恐れ
があるからである。In order to use the alkaline lipase according to the present invention, the above-mentioned deinking chemicals are added, or alkaline lipase is added together with the deinking chemicals and the mixture is left at 30 to 50°C for 1 to 12 hours. When using hydrogen peroxide as a bleaching agent, it is desirable to add alkaline lipase when the hydrogen peroxide concentration is sufficiently low (for example, 0.8% or less). This is because high concentrations of hydrogen peroxide may deactivate alkaline lipase.
アルカリリパーゼを添加した後、効果を発揮するための
接触時間は少なくとも１時間とすることが望ましく、ま
た１２時間以上としても脱墨効果の向上はそれ程期待で
きない、アルカリリパーゼは、離解工程、熟成タワー工
程または脱墨処理工程の１つとして独立して用いても良
い。After adding alkaline lipase, it is desirable that the contact time be at least 1 hour in order to exhibit its effect, and even if it is longer than 12 hours, the deinking effect cannot be significantly improved. It may be used independently as one of the steps or deinking treatment steps.
見匪勿羞米
本発明の脱墨剤によれば、脱墨処理のｐＨ領域であるｐ
Ｈ８，０〜１２．０に至適ｐＨを有するアルカリリパー
ゼを用いることにより、従来脱インキが難しいとされた
オフセット印刷古紙に由来する剥離しにくいインキ、特
にインキビヒクル中に存在する乾性油等の油脂を加水分
解することができ、パルプ繊維からのインキ脱離を促進
し、フローテーションや水洗方式で効果的にインキを除
去することができることから、高白色度で、かつ残イン
キ量も少ない高品質のパルプを再生することができる。According to the deinking agent of the present invention, the pH range of the deinking treatment is p.
By using alkaline lipase with an optimum pH of H8.0 to H12.0, it is possible to remove ink that is difficult to peel off from offset printing waste paper, which was previously considered difficult to remove, especially drying oils present in the ink vehicle. It can hydrolyze fats and oils, promote the removal of ink from pulp fibers, and effectively remove ink by flotation or washing with water. Quality pulp can be recycled.
本発明の脱墨剤は印刷古紙の種類や印刷方法にもよらず
適用することができ、例えば、新聞、雑誌、書籍、ちら
しなどの印刷物、あるいは凸版印刷、オフセット印刷、
グラビア印刷などの印刷方法による印刷物などに適用す
ることができる。The deinking agent of the present invention can be applied to printed materials such as newspapers, magazines, books, leaflets, letterpress printing, offset printing, etc. regardless of the type of printed waste paper or printing method.
It can be applied to printed materials produced by printing methods such as gravure printing.
また、従来の脱墨処理の如く、５０℃以上の高温を必要
とせず、比較的低温（４０℃以下）にて脱墨効果を発揮
する事が可能である。従って、高温時に溶解するピッチ
等による、抄紙時の紙切れの防止をも可能にするもので
ある。Furthermore, unlike conventional deinking treatments, high temperatures of 50° C. or higher are not required, and the deinking effect can be achieved at relatively low temperatures (40° C. or lower). Therefore, it is also possible to prevent paper breakage during paper making due to pitch that melts at high temperatures.
実施例１〜１０、比較例１〜１０
原料として新聞古紙（オフセット／凸版＝ ８／２）９
０％とチラシ１０％を細断し、パルプ離解機（ＪＩＳＰ
−８２０９）に入れ、古紙の重量に対して粒状水酸化ナ
トリウム１．５％、４０％３号ケイ酸ナトリウム１．５
％、第１表に記載したアルカリリパーゼ（ノボ社製リパ
ーゼ５Ｐ３５６）含有脱墨剤０．３％を加え、原料濃度
が５％となるように温水を加えて４５℃で２０分開離解
処理を行った。４５℃、４時間放置後、過酸化水素０．
６％（有効成分）、４０％３号ケイ酸ナトリウム２．０
％を添加し、５０℃。Examples 1 to 10, Comparative Examples 1 to 10 Used newspaper as raw material (offset/letterpress = 8/2) 9
0% and leaflet 10% are shredded using a pulp disintegrator (JISP
-8209), granular sodium hydroxide 1.5%, 40% No. 3 sodium silicate 1.5% based on the weight of waste paper.
%, 0.3% of the deinking agent containing alkaline lipase (Lipase 5P356 manufactured by Novo Corporation) listed in Table 1 was added, warm water was added so that the raw material concentration was 5%, and decomposition treatment was performed at 45°C for 20 minutes. Ta. After leaving at 45°C for 4 hours, hydrogen peroxide 0.
6% (active ingredient), 40% No. 3 sodium silicate 2.0
% and 50°C.
１時間漂白処理を行った。得られたパルプスラリーは、
パルプ濃度が１．０％になるよう水で希釈し、界面活性
剤として脂肪酸を使用したもののみ（実施例１、比較例
１）古紙の重量に対して塩化カルシウムを０．７％添加
して、試験用フローテータ−（極東振興■製）を用いて
１０分間２５℃にてブローチ−ジョン処理を行った。Bleaching treatment was carried out for 1 hour. The obtained pulp slurry is
Only those that diluted with water so that the pulp concentration was 1.0% and used fatty acids as surfactants (Example 1, Comparative Example 1) Calcium chloride was added at 0.7% based on the weight of waste paper. A broaching treatment was performed at 25° C. for 10 minutes using a test floatator (manufactured by Kyokuto Shinko ■).
得られたパルプ液を標準シートマシーン（ＪＩＳＰ−８
２０９）にかけて再生紙を坪量１００ｇ／ｒｒｒで調製
し、再生紙の白色度をＪＩＳ Ｐ−８１２３の方法に基
づいて、ハンター白炭で測定した。また１画像処理装置
を用いてこの再生紙の残インキの個数と大きさを求め、
その数値から残インキ面積率を算出し、フローテーショ
ン後の残インキ残存度合を測定した。その結果を後記第
１表に示す。The obtained pulp liquid was passed through a standard sheet machine (JISP-8
209) to prepare recycled paper with a basis weight of 100 g/rrr, and the whiteness of the recycled paper was measured using Hunter white charcoal based on the method of JIS P-8123. In addition, the number and size of the remaining ink on this recycled paper are determined using an image processing device.
The residual ink area ratio was calculated from the value, and the degree of residual ink remaining after flotation was measured. The results are shown in Table 1 below.
比較例１〜１０は、実施例１〜１０において、アルカリ
リパーゼを添加する事なしに、同様の操作を行った結果
である。Comparative Examples 1 to 10 are the results of performing the same operation as in Examples 1 to 10 without adding alkaline lipase.
実施例１１〜１８
原料として新聞古紙（オフセット／凸版＝ ７／３）８
０％とチラシ２０％を細断し、パルプ離解機（ＪＩＳｐ
−ｇ２０９）に入れ、古紙の重量に対して粒状水酸化ナ
トリウム１．５％、４０％３号ケイ酸ナトリウム３．５
％、過酸化水素０．５％（有効成分）および後記第２表
に記載した脱墨剤のうち界面活性剤のみ所定量（界面活
性剤とリパーゼ合計で０．３％）を加え、原料濃度が５
％となるよう温水を加えて５５℃で２０分開離解処理を
行った。さらに２０分放置した後、第２表に記載したア
ルカリリパーゼ（ノボ社製リパーゼ５Ｐ−３５６）を所
定量添加し、４０℃、３時間放置した。得られたパルプ
スラリーは、パルプ濃度が１．０％になるよう水で希釈
し、界面活性剤として脂肪酸を使用したもののみ（実施
例１３）古紙の重量に対して塩化カルシウムを０．７％
添加して、試験用フローテータ−（極東振興■製）を用
いて１０分間２５℃にてフローテーション処理を行った
。Examples 11-18 Used newspaper as raw material (offset/letterpress = 7/3) 8
0% and leaflet 20% are shredded and pulp disintegrator (JISp
-g209), granular sodium hydroxide 1.5%, 40% No. 3 sodium silicate 3.5% based on the weight of waste paper
%, 0.5% hydrogen peroxide (active ingredient), and a specified amount of surfactant among the deinking agents listed in Table 2 below (total of surfactant and lipase: 0.3%) to adjust the raw material concentration. is 5
%, and dissociation treatment was carried out at 55° C. for 20 minutes. After leaving the mixture for another 20 minutes, a predetermined amount of alkaline lipase (Lipase 5P-356 manufactured by Novo) listed in Table 2 was added, and the mixture was left at 40°C for 3 hours. The obtained pulp slurry was diluted with water so that the pulp concentration was 1.0%, and only the one using fatty acid as a surfactant (Example 13) contained 0.7% calcium chloride based on the weight of waste paper.
After the addition, flotation treatment was performed at 25° C. for 10 minutes using a test floatator (manufactured by Kyokuto Shinko ■).
得られたパルプ液を標準シートマシーン（ＪＩＳＰ−８
２０ｇ）にかけて再生紙を坪量１００ｇ／ ｒｒ？で調
製し、実施例１〜１０と同様にして再生紙の白色度およ
び残インキ面積率を測定した。その結果を第２表に示す
。The obtained pulp liquid was passed through a standard sheet machine (JISP-8
20g) and recycled paper with a basis weight of 100g/rr? The whiteness and residual ink area ratio of the recycled paper were measured in the same manner as in Examples 1 to 10. The results are shown in Table 2.
実施例Ｉ９〜２Ｇ
原料として新聞古紙（オフセット／凸版＝９／１）７０
％とチラシ３０％を細断し、パルプ離解機（ＪＩＳＰ−
８２０９）に入れ、古紙の重量に対して粒状水酸化ナト
リウム１．５％、４０％３号ケイ酸ナトリウム３．５％
、過酸化水素０．５５％（有効成分）および第３表に記
載した脱墨剤のうち界面活性剤のみ所定量（界面活性剤
とリパーゼ合計で０．３％）を加え、原料濃度が５％と
なるよう温水を加えて５５℃で２０分開離解処理を行っ
た。さらに３０分放置した後、第３表に記載したアルカ
リリパーゼ（生化学工業社製アルカリ性リパーゼ）を所
定量添加し、４０℃で６時間放置した。得られたパルプ
スラリーは、パルプ濃度が１．０％になるよう水で希釈
し、試験用フローテータ−（極東振興■製）を用いて１
０分間２５℃にてフローテーション処理を行った。Examples I9-2G Used newspaper as raw material (offset/letterpress = 9/1) 70
% and leaflet 30% are shredded and pulp disintegrator (JISP-
8209), granular sodium hydroxide 1.5%, 40% No. 3 sodium silicate 3.5% based on the weight of waste paper
, 0.55% hydrogen peroxide (active ingredient) and a specified amount of surfactant among the deinking agents listed in Table 3 (total of surfactant and lipase 0.3%) were added, and the raw material concentration was 5. %, and dissociation treatment was carried out at 55° C. for 20 minutes. After leaving for another 30 minutes, a predetermined amount of alkaline lipase (alkaline lipase manufactured by Seikagaku Kogyo Co., Ltd.) listed in Table 3 was added, and the mixture was left to stand at 40°C for 6 hours. The obtained pulp slurry was diluted with water so that the pulp concentration was 1.0%, and the pulp slurry was diluted with water using a test floatator (manufactured by Kyokuto Shinko ■).
Flotation treatment was performed at 25° C. for 0 minutes.
得られたパルプ液を標準シートマシーン（ＪＩＳＰ−８
２０９）にかけて再生紙を坪量１００ｇ／ｒｒｒ調製し
、実施例１〜ＩＯと同様にして再生紙の白色度および残
インキ面積率を算出し、その結果を第３表に示した。The obtained pulp liquid was passed through a standard sheet machine (JISP-8
209) to prepare recycled paper with a basis weight of 100 g/rrr, and the whiteness and residual ink area ratio of the recycled paper were calculated in the same manner as in Examples 1 to IO, and the results are shown in Table 3.
（以下余白）(Margin below)
Claims (1)
剤。1. A deinking agent characterized by containing alkaline lipase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22721688A JPH0814078B2 (en) | 1988-09-09 | 1988-09-09 | Deinking agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22721688A JPH0814078B2 (en) | 1988-09-09 | 1988-09-09 | Deinking agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0280684A true JPH0280684A (en) | 1990-03-20 |
| JPH0814078B2 JPH0814078B2 (en) | 1996-02-14 |
Family
ID=16857315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22721688A Expired - Lifetime JPH0814078B2 (en) | 1988-09-09 | 1988-09-09 | Deinking agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0814078B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5370770A (en) * | 1992-11-09 | 1994-12-06 | The Mead Corporation | Method for deinking printed waste paper using soybean peroxidase |
| US5837097A (en) * | 1995-12-20 | 1998-11-17 | Lion Corporation | Deinking agent for regenerating waste paper and method for deinking waste paper |
| WO2002057538A3 (en) * | 2001-01-16 | 2002-09-26 | Novozymes North America Inc | Neutral deinking with a deinking composition comprising a lipase and a fatty acid ester |
| JP2004501293A (en) * | 2000-06-16 | 2004-01-15 | バックマン・ラボラトリーズ・インターナショナル・インコーポレーテッド | Control method of organic contaminants in fiber |
| US6767728B2 (en) | 1994-09-15 | 2004-07-27 | University Of Georgia Research Foundation, Inc. | Composition for enzymatic deinking of waste paper |
| US7156514B2 (en) * | 2004-04-30 | 2007-01-02 | Lexmark International, Inc. | Inks and printheads with internal clog prevention |
| CN110396325A (en) * | 2019-07-09 | 2019-11-01 | 江西瑞思博新材料有限公司 | A kind of screen printing ink cleaning agent and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT1402109T (en) * | 2001-05-21 | 2017-12-18 | Novozymes As | Use of lipolytic enzymes for stickies control |
-
1988
- 1988-09-09 JP JP22721688A patent/JPH0814078B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5370770A (en) * | 1992-11-09 | 1994-12-06 | The Mead Corporation | Method for deinking printed waste paper using soybean peroxidase |
| US6767728B2 (en) | 1994-09-15 | 2004-07-27 | University Of Georgia Research Foundation, Inc. | Composition for enzymatic deinking of waste paper |
| US5837097A (en) * | 1995-12-20 | 1998-11-17 | Lion Corporation | Deinking agent for regenerating waste paper and method for deinking waste paper |
| JP2004501293A (en) * | 2000-06-16 | 2004-01-15 | バックマン・ラボラトリーズ・インターナショナル・インコーポレーテッド | Control method of organic contaminants in fiber |
| WO2002057538A3 (en) * | 2001-01-16 | 2002-09-26 | Novozymes North America Inc | Neutral deinking with a deinking composition comprising a lipase and a fatty acid ester |
| US7156514B2 (en) * | 2004-04-30 | 2007-01-02 | Lexmark International, Inc. | Inks and printheads with internal clog prevention |
| CN110396325A (en) * | 2019-07-09 | 2019-11-01 | 江西瑞思博新材料有限公司 | A kind of screen printing ink cleaning agent and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0814078B2 (en) | 1996-02-14 |
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