JP5651859B2 - 蛍光抑制剤および蛍光抑制方法 - Google Patents
蛍光抑制剤および蛍光抑制方法 Download PDFInfo
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- JP5651859B2 JP5651859B2 JP2010126267A JP2010126267A JP5651859B2 JP 5651859 B2 JP5651859 B2 JP 5651859B2 JP 2010126267 A JP2010126267 A JP 2010126267A JP 2010126267 A JP2010126267 A JP 2010126267A JP 5651859 B2 JP5651859 B2 JP 5651859B2
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Classifications
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- 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
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- Paper (AREA)
Description
攪拌装置、窒素ガス導入管、温度計を備え付けた四ツ口グラス容器にピリジン79.1gを加え、窒素ガスを通じて、塩化ベンジル127gを加え、105℃で8時間反応した。次に水382.7gを加えて100℃で2時間反応して濃度34%からなる1−ベンジルピリジニウムクロライドの黄色液体を得た。
攪拌装置、窒素ガス導入管、温度計を備え付けた四ツ口グラス容器に4−メチルピリジン93.1gを加え、窒素ガスを通じて、塩化ベンジル127gを加え、105℃で8時間反応した。次に水408.7gを加えて100℃で2時間反応して濃度34%からなる4−メチルベンジルピリジニウムクロライドの黄褐色液体を得た。
攪拌装置、窒素ガス導入管、温度計を備え付けた四ツ口グラス容器にジメチルラウリルアミン213gを加え、窒素ガスを通じて、塩化ベンジル127gを加え、105℃で8時間反応した。次に水631gを加えて100℃で2時間反応して濃度34%からなるジメチルラウリルベンジルアンモニウムクロライドの黄褐色液体を得た。
攪拌装置、窒素ガス導入管、温度計、脱水管を備え付けた四ツ口グラス容器にテレフタル酸166gとトリエチレンテトラミン146gを加え、窒素ガスを通じて、250℃で8時間脱水縮合反応した。次に濃塩酸104gと水483gを加えて濃度34%からなる褐色のポリイミダゾリン誘導体を得た。
攪拌装置、窒素ガス導入管、温度計を備え付けた四ツ口グラス容器にN−ビニルホルムアミド300g、次亜リン酸ナトリウム1.5g、水664gを加え、窒素ガスを通じて、触媒として2,2−アゾビス(2−アミジノプロパン)塩酸塩を4.5g加え70℃で8時間反応させ、濃度30%からなる黄色のポリビニルホルムアミド溶液を得た。水酸化ナトリウム30gを加え、70℃で7時間攪拌し、塩酸でpHを4に調整した。濃度28%からなる褐色のポリビニルホルムアミド加水分解物を得た。
広葉樹晒クラフトパルプ(LBKP)70%と針葉樹晒クラフトパルプ(NBKP)30%からなるバージンパルプを用い、紙に対し蛍光増白剤(Kayahor 3BS Liq.:日本化薬社製)2%、内添サイズ剤(サイズパインE−50:荒川化学社製)1%と硫酸バンド5%からなる液を用いタッピ式抄紙機で坪量100g/m2の紙を抄紙した。
合成例1化合物からなる蛍光抑制剤を固形1.0%になるように塗工する以外は実施例1と同様に行った。結果を表−1に示す。
合成例1化合物からなる蛍光抑制剤を固形2.0%、酸化デンプンを固形8.0%になるように塗工する以外は実施例1と同様に行った。結果を表−1に示す。
合成例1の化合物を合成例2の化合物に替える以外は実施例1と同様に行った。結果を表−1に示す。
合成例2化合物からなる蛍光抑制剤を固形1.0%になるように塗工する以外は実施例4と同様に行った。結果を表−1に示す。
合成例2化合物からなる蛍光抑制剤を固形2.0%、酸化デンプンを固形8.0%になるように塗工する以外は実施例4と同様に行った。結果を表−1に示す。
合成例1の化合物を比較合成例1の化合物に替える以外は実施例1と同様に行った。結果を表−1に示す。
合成例1の化合物を比較合成例2の化合物に替える以外は実施例1と同様に行った。結果を表−1に示す。
合成例1の化合物を比較合成例3の化合物に替える以外は実施例1と同様に行った。結果を表−1に示す。
合成例1の化合物をカルタレックス2L(ポリイミダゾリン系:クラリアント社製)に替える以外は実施例1と同様に行った。結果を表−1に示す。
蛍光増白剤をKayahor 3BS Liq.からKayahor TAC Liq.(日本化薬社製)に替える以外は実施例1〜6と同様に行った。結果を表−2に示す。蛍光抑制剤を加えていない時の原紙の蛍光強度は45であった。結果を表−2に示す。また、蛍光抑制剤、紙力剤と表面サイズ剤を混ぜた時の塗工液の相溶性も表−2に示す。
蛍光増白剤をKayahor 3BS Liq.からKayahor TAC Liq.に替える以外は比較例1〜3と同様に行った。結果を表−2に示す。
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