JP4707100B2 - Deinking agent for non-deinkable waste paper - Google Patents
Deinking agent for non-deinkable waste paper Download PDFInfo
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- JP4707100B2 JP4707100B2 JP2005250206A JP2005250206A JP4707100B2 JP 4707100 B2 JP4707100 B2 JP 4707100B2 JP 2005250206 A JP2005250206 A JP 2005250206A JP 2005250206 A JP2005250206 A JP 2005250206A JP 4707100 B2 JP4707100 B2 JP 4707100B2
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- 239000002761 deinking Substances 0.000 title claims description 49
- 239000010893 paper waste Substances 0.000 title claims description 44
- 239000003795 chemical substances by application Substances 0.000 title claims description 28
- 150000001875 compounds Chemical class 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- 125000004432 carbon atom Chemical group C* 0.000 claims description 10
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 5
- 125000005504 styryl group Chemical group 0.000 claims description 5
- 125000003342 alkenyl group Chemical group 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 125000005529 alkyleneoxy group Chemical group 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 125000001624 naphthyl group Chemical group 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 239000000976 ink Substances 0.000 description 34
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 238000005188 flotation Methods 0.000 description 17
- 238000012360 testing method Methods 0.000 description 13
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 10
- 125000002947 alkylene group Chemical group 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 241000628997 Flos Species 0.000 description 9
- 238000005259 measurement Methods 0.000 description 8
- 230000000007 visual effect Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 6
- 239000004115 Sodium Silicate Substances 0.000 description 5
- 239000000203 mixture 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
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 4
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 238000010191 image analysis Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- 238000007259 addition reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 150000002989 phenols Chemical class 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- -1 fatty acid ester Chemical class 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000004780 naphthols Chemical class 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 125000005702 oxyalkylene group Chemical group 0.000 description 2
- 235000011118 potassium hydroxide Nutrition 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- TVFWYUWNQVRQRG-UHFFFAOYSA-N 2,3,4-tris(2-phenylethenyl)phenol Chemical compound C=1C=CC=CC=1C=CC1=C(C=CC=2C=CC=CC=2)C(O)=CC=C1C=CC1=CC=CC=C1 TVFWYUWNQVRQRG-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 1
- 229940073608 benzyl chloride Drugs 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 239000002699 waste material 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
- Paper (AREA)
Description
本発明は難脱墨性古紙用脱墨剤に関するものである。 The present invention relates to a deinking agent for hardly deinking waste paper.
新聞古紙、雑誌古紙、色上古紙等から再生パルプを製造し、製紙用原料として再利用する事は古くから行われており、近年の資源の有効利用と環境保護の立場から古紙の再利用は重要性を増している。また近年、古紙の更なる利用率拡大のため、紫外線（ＵＶ）等で硬化させる活性エネルギー線硬化性印刷インキを使用した印刷物（ＵＶインキ印刷古紙）やトナーインキを使用した印刷物（ＯＡ古紙）等の一般的に脱墨性が悪いとされている古紙（難脱墨性古紙）から脱墨パルプを得ようとする試みがなされている。 Recycled pulp is produced from waste newspaper, magazine waste paper, colored waste paper, etc., and reused as a raw material for papermaking. From the standpoint of effective use of resources and environmental protection in recent years, Increasing importance. In recent years, in order to further increase the utilization rate of used paper, printed materials using active energy ray-curable printing ink that is cured with ultraviolet rays (UV), etc. (used UV ink printed paper), printed materials using toner ink (OA used paper), etc. Attempts have been made to obtain deinked pulp from waste paper that is generally considered to have poor deinkability (hardly deinked wastepaper).
しかしながら、難脱墨性古紙は新聞印刷インキと比較しパルプ繊維上へ強固に固着し、さらに硬化したインキの硬度が高い為、従来からある高級アルコール系非イオン界面活性剤型脱墨剤（特許文献１、特許文献２、特許文献３参照）ではインキの剥離が十分にできず、脱墨パルプの品質悪化に繋がるという問題点がある。また、フェノールまたはアルキルフェノールにアルキレンオキサイドまたはアルキレンオキサイド及びα−オレフィンオキサイド等の長鎖アルキレンオキサイドを付加させたアルキルフェノール系非イオン型脱墨剤（特許文献４、特許文献５、特許文献６参照）はインキの剥離が十分にできず、またフローテーション法による脱墨方法において脱墨性の低下という問題点がある。
本発明が解決しようとする課題は、ＵＶインキ印刷古紙に代表されるインキ剥離が困難な難脱墨性古紙に対して未剥離インキの減少とフローテーション法に代表される脱墨方法で優れたインキ除去性を有する脱墨剤を提供することである。 The problem to be solved by the present invention is excellent in the reduction of unpeeled ink and the deinking method typified by the flotation method for the difficult-to-deinkable wastepaper typified by UV ink-printed wastepaper. It is to provide a deinking agent having ink removability.
本発明者らは複数の芳香環を有する化合物を配合した脱墨剤を用いることにより、上記課題を解決することができることを見出した。すなわち本発明は下記一般式（１）で表される化合物を含有する難脱墨性古紙用脱墨剤である。
本発明の好ましい態様に、上記化合物に加えさらに下記一般式（２）で表される化合物を含有することを特徴とする難脱墨性古紙用脱墨剤がある。
さらに本発明の別の態様に、前記脱墨剤を使用した難脱墨性古紙の脱墨方法がある。 Further, in another aspect of the present invention, there is a method of deinking hard-to-deink waste paper using the deinking agent.
本発明にかかわる前記一般式（１）で表される化合物は、フェノールまたはナフトールにスチリル基、ベンジル基またはクミル基を導入した置換フェノールまたは置換ナフトールのアルキレンオキサイド付加体である。ｎはフェノールまたはナフトール１分子に導入されるスチリル基、ベンジル基またはクミル基の個数を示し、１から５の整数であるが、製造面から２から４の整数が好ましい。フェノールまたはナフトールへのスチリル基、ベンジル基またはクミル基の導入は公知の方法で容易に行うことが出来る。すなわち、フェノールまたはナフトールへスチレンモノマー、塩化ベンジルまたはα−メチルスチレンを反応させる事で得られる。 The compound represented by the general formula (1) according to the present invention is an alkylene oxide adduct of a substituted phenol or substituted naphthol in which a styryl group, a benzyl group or a cumyl group is introduced into phenol or naphthol. n represents the number of styryl groups, benzyl groups or cumyl groups introduced into one molecule of phenol or naphthol, and is an integer of 1 to 5, preferably an integer of 2 to 4 from the viewpoint of production. Introduction of a styryl group, benzyl group or cumyl group into phenol or naphthol can be easily carried out by a known method. That is, it can be obtained by reacting phenol or naphthol with a styrene monomer, benzyl chloride or α-methylstyrene.
一般式（１）において−（ＡＯ）ｍ−で示される（ポリ）オキシアルキレン基は前記置換フェノール又は置換ナフトールにアルキレンオキサイドを付加することにより導入することができる。該アルキレンオキサイドとしては、エチレンオキサイド（以下ＥＯと略す）、プロピレンオキサイド（以下ＰＯと略す）、ブチレンオキサイド（以下ＢＯと略す）のいずれか、もしくはそれらの組み合わせが例示でき、その付加形態はブロック付加、ランダム付加のいずれの付加形態でもかまわない。アルキレンオキサイドの付加も公知の方法で行うことができる。すなわち、特に限定されるものではないが置換フェノールに苛性ソーダ、苛性カリ等のアルカリ触媒又は硫酸等の酸触媒を用い、加圧下１１０〜１５０℃にて所定量のアルキレンオキサイドを付加させることができる。
The (poly) oxyalkylene group represented by-(AO) m- in the general formula (1) can be introduced by adding an alkylene oxide to the substituted phenol or substituted naphthol. Examples of the alkylene oxide include ethylene oxide (hereinafter abbreviated as EO), propylene oxide (hereinafter abbreviated as PO), butylene oxide (hereinafter abbreviated as BO), or combinations thereof. Any addition form of random addition may be used. Addition of alkylene oxide can also be performed by a known method. That is, although not particularly limited, an alkali catalyst such as caustic soda and caustic potash or an acid catalyst such as sulfuric acid can be added to the substituted phenol, and a predetermined amount of alkylene oxide can be added at 110 to 150 ° C. under pressure.
一般式（１）で表される化合物は難脱墨性古紙のフローテーション法による脱墨において優れたインキ除去性を発揮するが、発泡量増加に起因する流出フロス量の増加に伴うパルプ収率の低下を抑制するため、下記一般式（２）で表される化合物を併用することが好ましい。
上記一般式（２）においてＲ１で示されるアルキル基、アルケニル基としては炭素数８から２４の直鎖、分岐もしくは環状アルコールの残基が挙げられるが、この中で特に炭素数１２から２２の直鎖アルコールの残基が流出フロス低減効果の面から好ましい。
−（ＡＯ）ｐ−で示されるポリアルキレンオキシ基はエチレンオキサイド、プロピレンオキサイド、ブチレンオキサイドのいずれか、もしくはそれらを組み合わせて付加することにより得ることができ、その付加形態はブロック付加、ランダム付加のいずれであってもよいが、流出フロス量の低減効果に優れる点で高級アルコールにプロピレンオキサイドを直接付加したものが好ましい。
Examples of the alkyl group or alkenyl group represented by R 1 in the general formula (2) include linear, branched, or cyclic alcohol residues having 8 to 24 carbon atoms. Among them, in particular, those having 12 to 22 carbon atoms. The residue of a linear alcohol is preferable from the viewpoint of the effect of reducing the outflow froth.
The polyalkyleneoxy group represented by-(AO) p- can be obtained by adding any of ethylene oxide, propylene oxide, butylene oxide, or a combination thereof, and the addition form is block addition or random addition. Any of them may be used, but a compound obtained by directly adding propylene oxide to a higher alcohol is preferable in that it is excellent in the effect of reducing the outflow froth amount.
上記一般式（１）の化合物と上記一般式（２）の化合物の配合割合は、流出フロス量を抑えつつ所望の脱墨効果を得るため、重量比で９９／１から１／９９の範囲であることが好ましく、９０／１０から１０／９０の範囲がより好ましく、３０／７０から７０／３０の範囲がさらに好ましい。本発明の脱墨剤の使用量は古紙に対し、０．００１〜２重量％の割合が好ましいが、０．００５〜０．５重量％の割合がより好ましい。
The blending ratio of the compound of the general formula (1) and the compound of the general formula (2) is in the range of 99/1 to 1/99 by weight ratio in order to obtain a desired deinking effect while suppressing the outflow floss amount. Preferably, there is a range of 90/10 to 10/90, more preferably a range of 30/70 to 70/30. The amount of the deinking agent used in the present invention is preferably 0.001 to 2% by weight, more preferably 0.005 to 0.5% by weight, based on the waste paper.
またインキ捕集性を高める為、炭素数１２から２４までの脂肪酸や脂肪酸エステル等の脂肪酸誘導体系化合物を併用して用いることができる。また、フローテーション法での起泡性、抑泡性を調整する目的で、アルキルエーテルサルフェートや脂肪酸石鹸等のアニオン性界面活性剤を併用して用いることができる。 Moreover, in order to improve ink collection property, it can use together with fatty acid derivative compounds, such as a C12-C24 fatty acid and fatty acid ester. In addition, anionic surfactants such as alkyl ether sulfates and fatty acid soaps can be used in combination for the purpose of adjusting the foamability and foam suppression properties in the flotation method.
本発明に係る脱墨剤は一般式（１）で表される化合物及び必要に応じ一般式（２）で表される化合物を含有することを特徴とし、古紙離解工程、漂白工程、フローテーション工程等の各工程で添加することができる。また、従来の方法と同様、アルカリ類は苛性ソーダ、ケイ酸ソーダ、炭酸ソーダ及びリン酸ソーダ等が使用できる。また、過酸化水素等の漂白剤を併用し、脱墨パルプの白色度を上げるのも好ましい。更にＥＤＴＡ等のキレート剤を使用しても構わない。 The deinking agent according to the present invention contains a compound represented by the general formula (1) and, if necessary, a compound represented by the general formula (2), a waste paper disaggregation step, a bleaching step, a flotation step It can be added at each step. As in the conventional method, caustic soda, sodium silicate, sodium carbonate, sodium phosphate and the like can be used as the alkali. It is also preferable to use a bleaching agent such as hydrogen peroxide to increase the whiteness of the deinked pulp. Further, a chelating agent such as EDTA may be used.
本発明に係る脱墨剤はＵＶインキ印刷古紙、ＰＰＣ，ＣＰＯ等のＯＡ古紙のような難脱墨剥離性古紙に対し、優れた未剥離インキの減少効果を有する。また、新聞古紙、色上古紙または雑誌古紙に対しても高級アルコール系脱墨剤と比較し、良好な未剥離インキの減少効果を有し、これらの古紙にＵＶインキ印刷古紙等の難脱墨古紙が含有された場合においても未剥離インキの増加は確認されない。 The deinking agent according to the present invention has an excellent non-peeling ink reduction effect on hard-to-deinkable wastepaper such as UV ink printed wastepaper, PPC, CPO and other OA wastepaper. In addition, compared with high-grade alcohol-based deinking agents, it also has a good effect of reducing unpeeled ink on used newspapers, colored tops and magazines. Even when used paper is contained, an increase in unpeeled ink is not confirmed.
以下、本発明の実施例を示すが、これに限定されるものではない。 Examples of the present invention are shown below, but are not limited thereto.
製造例１
公知の方法によりフェノール１モルとスチレンモノマー３モルとを反応して得たトリスチリルフェノール１９８ｇ（１．０モル）及び苛性カリ４．７ｇをステンレス製オートクレーブに投入した。反応槽内を充分に窒素置換した後、１２０±５℃、１〜５ｋｇ／ｃｍ３を保つようにエチレンオキサイド８８０ｇ（２０モル）を徐々に添加し付加反応を行った。添加終了後、１２０±５℃を２時間保持しながら熟成を行った。次にプロピレンオキサイド１１６０ｇ（２０モル）を徐々に添加し付加反応を行った。添加終了後、１２０±５℃を２時間保持しながら熟成を行った。添加終了後、酢酸５．６ｇで触媒を中和し、Ａ成分Ｎｏ．１の化合物を得た。
Production Example 1
198 g (1.0 mol) of tristyrylphenol obtained by reacting 1 mol of phenol with 3 mol of styrene monomer by a known method and 4.7 g of caustic potash were charged into a stainless steel autoclave. After sufficiently purging the inside of the reaction vessel with nitrogen, 880 g (20 mol) of ethylene oxide was gradually added so as to maintain 120 ± 5 ° C. and 1 to 5 kg / cm 3 to carry out an addition reaction. After completion of the addition, aging was performed while maintaining 120 ± 5 ° C. for 2 hours. Next, 1160 g (20 mol) of propylene oxide was gradually added to carry out an addition reaction. After completion of the addition, aging was performed while maintaining 120 ± 5 ° C. for 2 hours. After completion of the addition, the catalyst was neutralized with 5.6 g of acetic acid. 1 compound was obtained.
以下同様の方法で表１に示すＡ成分Ｎｏ．２〜１３を得た。 In the same manner, A component No. 1 shown in Table 1 is used. 2-13 were obtained.
製造例１と同様のアルキレンオキサイド付加反応により表２に示すＢ成分Ｎｏ．１〜８ を得た。 B component No. shown in Table 2 by the alkylene oxide addition reaction similar to the manufacture example 1 was carried out. 1-8 were obtained.
Ａ成分とＢ成分を表３に示す割合で配合する事で表３に示す本発明に係る脱墨剤Ｎｏ．１〜２４の難脱墨古紙用脱墨剤を得た。 By blending the A component and the B component in the ratios shown in Table 3, the deinking agent No. 1 according to the present invention shown in Table 3 is used. 1 to 24 deinking agents for hard deinked waste paper were obtained.
本発明に係る脱墨剤との比較を行うために表４に示す非イオン系界面活性剤を試験に供した。なお、以下の表中の構造式において、『／』はアルキレンオキサイドの付加形態がランダム付加であることを示し、『−』はブロック付加であることを示す。
In order to compare with the deinking agent according to the present invention, the nonionic surfactants shown in Table 4 were used for the test. In the structural formulas in the following table, “/” indicates that the addition form of the alkylene oxide is random addition, and “−” indicates that the addition is block addition.
（Ａ成分）
（Ｂ成分）
(B component)
（実施例脱墨剤）
（比較例脱墨剤）
（脱墨試験１）ＵＶインキ印刷古紙での脱墨試験
ＵＶインキ印刷古紙１００％からなる原料古紙を３ｃｍ×３ｃｍに切断し、卓上離解機に入れ、苛性ソーダを１．５％（対古紙）、３号ケイ酸ソーダを３％（対古紙）、３５％過酸化水素水を３％（対古紙）及び表３に示した脱墨剤を０．２％（対古紙）加えた後、水を加え、古紙濃度５％とし、５５℃に昇温後１５分間離解した。離解後同温度で１時間熟成してからパルプ濃度１％に希釈して(株)ＩＨＩフォイトペーパーテクノロジー製ＭＴ５Ｌフローテーターに移し、フローテーション処理を１０分間行った。得られたパルプを０．５％濃度にした後、硫酸アルミニウムにてｐＨ５．０に調整し、ＪＩＳ Ｐ−８２０９に規定したシートマシンにて手抄きした。さらにフローテーション処理を行ったパルプを２００倍量のイオン交換水で３回洗浄を行った。このパルプについて同様の方法で手抄きした。
(Deinking test 1) Deinking test with used UV ink printed waste paper Raw material waste paper made of 100% UV ink printed waste paper is cut into 3 cm x 3 cm, placed in a desktop disintegrator, 1.5% caustic soda (against used paper), Add 3% sodium silicate 3 (to old paper), 35% hydrogen peroxide 3% (to old paper) and 0.2% of deinking agent shown in Table 3 (to old paper). In addition, the waste paper concentration was set to 5%, and the temperature was raised to 55 ° C. and then disaggregated for 15 minutes. After disaggregation, the mixture was aged at the same temperature for 1 hour, diluted to a pulp concentration of 1%, transferred to an MT5L flowator manufactured by IHI Voith Paper Technology, and subjected to a flotation treatment for 10 minutes. The obtained pulp was adjusted to 0.5% concentration, adjusted to pH 5.0 with aluminum sulfate, and hand-drawn with a sheet machine specified in JIS P-8209. Further, the pulp subjected to the flotation treatment was washed three times with 200 times the amount of ion-exchanged water. This pulp was hand-made in the same manner.
（性能評価試験）
手抄き紙は乾燥後、次の測定を行い、脱墨効果を評価した。
ＩＳＯ白色度：ＪＩＳ Ｐ−８１４８に規定した方法に準じて測定を行った。
残インキ数及び面積率：完全洗浄パルプについて画像解析装置を使用し、視野１００ｍｍ２中に存在する径２０μｍ以上のインキ個数及び全視野中におけるインキ総面積率（％）を測定した。
流出フロス量：フローテーション後に採取した流出フロス量の重量（ｇ）を測定した。
測定結果を表５に示す。
(Performance evaluation test)
The handmade paper was dried and then subjected to the following measurements to evaluate the deinking effect.
ISO whiteness: Measured according to the method defined in JIS P-8148.
Number of remaining inks and area ratio: An image analysis apparatus was used for the completely washed pulp, and the number of inks having a diameter of 20 μm or more existing in a visual field of 100 mm 2 and the total ink area ratio (%) in the entire visual field were measured.
Outflow floss amount: The weight (g) of the outflow floss amount collected after flotation was measured.
Table 5 shows the measurement results.
（脱墨試験２）ＯＡ古紙での脱墨試験
ＰＰＣ古紙５０％、ＣＰＯ古紙５０％からなる原料古紙を３ｃｍ×３ｃｍに切断し、卓上離解機に入れ、苛性ソーダを１．５％（対古紙）、３号ケイ酸ソーダを３％（対古紙）、３５％過酸化水素水を３％（対古紙）及び表３に示した脱墨剤を０．２％（対古紙）を加えた後、水を加え、古紙濃度５％とし、５５℃に昇温後１５分間離解した。離解後同温度で１時間熟成してからパルプ濃度１％に希釈して(株)ＩＨＩフォイトペーパーテクノロジー製ＭＴ５Ｌフローテーターに移し、フローテーション処理を１０分間行った。得られたパルプを０．５％濃度にした後、硫酸アルミニウムにてｐＨ５．０に調整した後、ＪＩＳ Ｐ−８２０９に規定したシートマシンにて手抄きした。さらにフローテーション処理を行ったパルプを２００倍量のイオン交換水で３回洗浄を行った。このパルプについて同様の方法で手抄きした。
(Deinking test 2) Deinking test with OA waste paper Waste paper made of 50% PPC waste paper and 50% CPO waste paper is cut into 3cm x 3cm, placed in a desktop disintegrator and caustic soda 1.5% (against waste paper) 3% sodium silicate 3% (against waste paper), 35% hydrogen peroxide 3% (against waste paper) and 0.2% deinking agent shown in Table 3 (against waste paper) Water was added to adjust the waste paper concentration to 5%, and the temperature was raised to 55 ° C., and then disaggregated for 15 minutes. After disaggregation, the mixture was aged at the same temperature for 1 hour, diluted to a pulp concentration of 1%, transferred to an MT5L flowator manufactured by IHI Voith Paper Technology, and subjected to a flotation treatment for 10 minutes. The obtained pulp was adjusted to 0.5% concentration, adjusted to pH 5.0 with aluminum sulfate, and then hand-drawn with a sheet machine defined in JIS P-8209. Further, the pulp subjected to the flotation treatment was washed three times with 200 times the amount of ion-exchanged water. This pulp was hand-made in the same manner.
（性能評価試験）
手抄き紙は乾燥後、次の測定を行い脱墨効果を評価した。
ＩＳＯ白色度：ＪＩＳ Ｐ−８１４８に規定した方法に準じて測定を行った。
残インキ数及び面積率：完全洗浄パルプについて、画像解析装置を使用し、視野１００ｍｍ２中に存在する径２０μｍ以上のインキ個数及び全視野中におけるインキ総面積率（％）を測定した。
流出フロス量：フローテーション後に採取した流出フロス量の重量（ｇ）を測定した。
測定結果を表６に示す。
(Performance evaluation test)
The handmade paper was dried and then subjected to the following measurements to evaluate the deinking effect.
ISO whiteness: Measured according to the method defined in JIS P-8148.
Number of remaining inks and area ratio: For the completely washed pulp, the number of inks having a diameter of 20 μm or more existing in a visual field of 100 mm 2 and the total ink area ratio (%) in the entire visual field were measured using an image analysis apparatus.
Outflow floss amount: The weight (g) of the outflow floss amount collected after flotation was measured.
Table 6 shows the measurement results.
（脱墨試験３）上質古紙での脱墨試験
色上古紙４０％、模造古紙４０％、ＵＶインキ印刷古紙２０％からなる原料古紙を３ｃｍ×３ｃｍに切断し、卓上離解機に入れ、苛性ソーダを１．５％（対古紙）、３号ケイ酸ソーダを３％（対古紙）、３５％過酸化水素水を３％（対古紙）及び表３に示した脱墨剤を０．２％（対古紙）を加えた後、水を加え、古紙濃度５％とし、５５℃に昇温後１５分間離解した。離解後同温度で１時間熟成してからパルプ濃度１％に希釈して(株)ＩＨＩフォイトペーパーテクノロジー製ＭＴ５Ｌフローテーターに移し、フローテーション処理を１０分間行った。得られたパルプを０．５％濃度にした後、硫酸アルミニウムにてｐＨ５．０に調整した後、ＪＩＳ Ｐ−８２０９に規定したシートマシンにて手抄きした。さらにフローテーション処理を行ったパルプを２００倍量のイオン交換水で３回洗浄を行った。このパルプについて同様の方法で手抄きした。
(Deinking test 3) Deinking test with high-quality waste paper Colored waste paper 40%, imitation waste paper 40%, UV ink printing waste paper 20% cut into 3cm x 3cm, put into a desktop disintegrator, caustic soda 1.5% (for used paper), 3% sodium silicate 3% (for used paper), 35% hydrogen peroxide 3% (for used paper), and 0.2% of deinking agents shown in Table 3 ( After adding the water, water was added to make the waste paper concentration 5%, and the temperature was raised to 55 ° C. for 15 minutes. After disaggregation, the mixture was aged at the same temperature for 1 hour, diluted to a pulp concentration of 1%, transferred to an MT5L flowator manufactured by IHI Voith Paper Technology, and subjected to a flotation treatment for 10 minutes. The obtained pulp was adjusted to 0.5% concentration, adjusted to pH 5.0 with aluminum sulfate, and then hand-drawn with a sheet machine defined in JIS P-8209. Further, the pulp subjected to the flotation treatment was washed three times with 200 times the amount of ion-exchanged water. This pulp was hand-made in the same manner.
（性能評価試験）
手抄き紙は乾燥後、次の測定を行い脱墨効果を評価した。
ＩＳＯ白色度：ＪＩＳ Ｐ−８１４８に規定した方法に準じて測定を行った。
残インキ数及び面積率：完全洗浄パルプについて、画像解析装置を使用し、視野１００ｍｍ２中に存在する径２０μｍ以上のインキ個数及び全視野中におけるインキ総面積率（％）を測定した。
流出フロス量：フローテーション後に採取した流出フロス量の重量（ｇ）を測定した。
測定結果を表７に示す。
(Performance evaluation test)
The handmade paper was dried and then subjected to the following measurements to evaluate the deinking effect.
ISO whiteness: Measured according to the method defined in JIS P-8148.
Number of remaining inks and area ratio: For the completely washed pulp, the number of inks having a diameter of 20 μm or more existing in a visual field of 100 mm 2 and the total ink area ratio (%) in the entire visual field were measured using an image analysis apparatus.
Outflow floss amount: The weight (g) of the outflow floss amount collected after flotation was measured.
Table 7 shows the measurement results.
（脱墨試験４）新聞古紙での脱墨試験
オフセット新聞古紙５０％、折り込み広告３０％、ＵＶインキ印刷古紙２０％からなる原料古紙を３ｃｍ×３ｃｍに切断し、卓上離解機に入れ、苛性ソーダを１．５％（対古紙）、３号ケイ酸ソーダを３％（対古紙）、３５％過酸化水素水を３％（対古紙）及び表３に示した脱墨剤０．２％（対古紙）を加えた後、水を加え、古紙濃度５％とし、５５℃に昇温後１５分間離解した。離解後同温度で１時間熟成してからパルプ濃度１％に希釈して(株)ＩＨＩフォイトペーパーテクノロジー製ＭＴ５Ｌフローテーターに移し、フローテーション処理を１０分間行った。得られたパルプを０．５％濃度にした後、硫酸アルミニウムにてｐＨ５．０に調整した後、ＪＩＳ Ｐ−８２０９に規定したシートマシンにて手抄きした。さらにフローテーション処理を行ったパルプを２００倍量のイオン交換水で３回洗浄を行った。このパルプについて同様の方法で手抄きした。
(Deinking test 4) Deinking test with used newspaper Newspaper waste paper consisting of 50% offset newspaper wastepaper, 30% insert advertising and 20% UV ink printed wastepaper is cut into 3cm x 3cm, placed in a desktop disintegrator, and caustic soda is added. 1.5% (against old paper), 3% sodium silicate 3% (against old paper), 35% hydrogen peroxide 3% (against old paper) and 0.2% deinking agent shown in Table 3 Waste paper) was added, water was added to make the waste paper concentration 5%, the temperature was raised to 55 ° C., and the mixture was disaggregated for 15 minutes. After disaggregation, the mixture was aged at the same temperature for 1 hour, diluted to a pulp concentration of 1%, transferred to an MT5L flowator manufactured by IHI Voith Paper Technology, and subjected to a flotation treatment for 10 minutes. The obtained pulp was adjusted to 0.5% concentration, adjusted to pH 5.0 with aluminum sulfate, and then hand-drawn with a sheet machine defined in JIS P-8209. Further, the pulp subjected to the flotation treatment was washed three times with 200 times the amount of ion-exchanged water. This pulp was hand-made in the same manner.
（性能評価試験）
手抄き紙は乾燥後、次の測定を行い、脱墨効果を評価した。
白色度：ＪＩＳ Ｐ−８１４８に規定した方法に準じて測定を行った。
残インキ数及び面積率：完全洗浄パルプについて、画像解析装置を使用し、視野１００ｍｍ２中に存在する径２０μｍ以上のインキ個数及び全視野中におけるインキ総面積率（％）を測定した。
流出フロス量：フローテーション後に採取した流出フロス量の重量（ｇ）を測定した。
測定結果を表８に示す。
(Performance evaluation test)
The handmade paper was dried and then subjected to the following measurements to evaluate the deinking effect.
Whiteness: Measured according to the method defined in JIS P-8148.
Number of remaining inks and area ratio: For the completely washed pulp, the number of inks having a diameter of 20 μm or more existing in a visual field of 100 mm 2 and the total ink area ratio (%) in the entire visual field were measured using an image analysis apparatus.
Outflow floss amount: The weight (g) of the outflow floss amount collected after flotation was measured.
Table 8 shows the measurement results.
本発明に係る脱墨剤はＵＶインキ印刷古紙、ＰＰＣ，ＣＰＯ等のＯＡ古紙のような難脱墨性古紙に対し、優れた未剥離インキの減少効果を示し、これにより高品質の脱墨パルプを得ることができる。
The deinking agent according to the present invention shows excellent reduction effect of unpeeled ink on difficult-to-deinkable used paper such as UV ink printed used paper, OA used paper such as PPC, CPO, etc. Can be obtained.
Claims (4)
（Ａｒ） ３ −Ｘ−Ｏ−（ＡＯ）ｍ−Ｈ （１）
（但し、Ａｒはベンジル基、スチリル基またはクミル基を表し、Ｘはフェニル基またはナフチル基であり、ＡＯは炭素数２から４のアルキレンオキシ基、ｍは１から２００の整数である。） A deinking agent for non-deinkable waste paper, comprising a compound represented by the following general formula (1):
(Ar) 3- X-O- (AO) m-H (1)
(However, Ar represents a benzyl group, a styryl group or a cumyl group , X represents a phenyl group or a naphthyl group, AO represents an alkyleneoxy group having 2 to 4 carbon atoms, and m represents an integer of 1 to 200.)
Ｒ１−Ｏ−（ＡＯ）ｐ−Ｈ （２）
（但し、Ｒ１は炭素数１から２４のアルキル基またはアルケニル基を表し、ＡＯは炭素数２から４のアルキレンオキシ基を表し、ｐは２から２００の整数である。） The deinking agent for hardly deinking used paper according to claim 1, further comprising a compound represented by the following general formula (2).
R 1 -O- (AO) p- H (2)
(However, R 1 represents an alkyl or alkenyl group having 1 to 24 carbon atoms, AO represents an alkyleneoxy group having 2 to 4 carbon atoms, and p is an integer of 2 to 200.)
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| JP2000129587A (en) * | 1998-10-21 | 2000-05-09 | Asahi Denka Kogyo Kk | Defoaming agent and composition for deinking treatment |
| JP2000199190A (en) * | 1999-01-06 | 2000-07-18 | Asahi Denka Kogyo Kk | Defoaming agent and composition for deinking treatment |
| JP2002327384A (en) * | 2001-04-25 | 2002-11-15 | Toho Chem Ind Co Ltd | Deinking agent |
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| JP2000199190A (en) * | 1999-01-06 | 2000-07-18 | Asahi Denka Kogyo Kk | Defoaming agent and composition for deinking treatment |
| JP2002327384A (en) * | 2001-04-25 | 2002-11-15 | Toho Chem Ind Co Ltd | Deinking agent |
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