JP2009120967A5 - - Google Patents

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Publication number
JP2009120967A5
JP2009120967A5 JP2007292684A JP2007292684A JP2009120967A5 JP 2009120967 A5 JP2009120967 A5 JP 2009120967A5 JP 2007292684 A JP2007292684 A JP 2007292684A JP 2007292684 A JP2007292684 A JP 2007292684A JP 2009120967 A5 JP2009120967 A5 JP 2009120967A5
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Japan
Prior art keywords
strength agent
paper strength
starch
natural paper
papermaking method
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Pending
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JP2007292684A
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Japanese (ja)
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JP2009120967A (en
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Priority to JP2007292684A priority Critical patent/JP2009120967A/en
Priority claimed from JP2007292684A external-priority patent/JP2009120967A/en
Publication of JP2009120967A publication Critical patent/JP2009120967A/en
Publication of JP2009120967A5 publication Critical patent/JP2009120967A5/ja
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Claims (12)

パルプスラリーにカチオン性合成紙力剤を添加し、次いでアニオン性微粒子を混合した澱粉粒子からなる天然紙力剤をスラリーの状態で添加することを特徴とする製紙方法。 A papermaking method comprising adding a cationic synthetic paper strength agent to a pulp slurry and then adding a natural paper strength agent composed of starch particles mixed with anionic fine particles in a slurry state. 天然紙力剤の組成が、澱粉／アニオン性微粒子の混合比率として９９．９５／０．０５〜８０／２０であることを特徴とする請求項１記載の製紙方法。 Papermaking process of claim 1 Symbol placement, wherein the composition of the natural paper strength agent, a 99.95 / 0.05 to 80/20 as the mixing ratio of starch / anionic microparticle. 天然紙力剤を原料パルプ固形分当たり澱粉分として０．２〜１５質量％添加することを特徴とする請求項１または２記載の製紙方法。 The papermaking method according to claim 1 or 2 , wherein the natural paper strength agent is added in an amount of 0.2 to 15% by mass as starch per raw material pulp solids. 天然紙力剤を構成する澱粉が０．００１ｍｅｑ／ｇ以上のネットカチオン電荷密度を示すものである請求項１から３のいずれか１項に記載の製紙方法。 The papermaking method according to any one of claims 1 to 3 , wherein the starch constituting the natural paper strength agent exhibits a net cation charge density of 0.001 meq / g or more. 天然紙力剤を構成する澱粉が、固形分８％濃度の糊液で、５０℃、６０ｒｐｍにおいて５〜５０００ｍＰａ・ｓのＢ型粘度を有するものである請求項１から４のいずれか１項に記載の製紙方法。 The starch constituting the natural paper strengthening agent is a paste solution having a solid content of 8% and has a B-type viscosity of 5 to 5000 mPa · s at 50 ° C and 60 rpm, according to any one of claims 1 to 4. The paper making method described. 天然紙力剤を構成するアニオン性微粒子がベントナイトであることを特徴とする請求項１から５のいずれか１項に記載の製紙方法。 The papermaking method according to any one of claims 1 to 5 , wherein the anionic fine particles constituting the natural paper strength agent are bentonite. 合成紙力剤の添加量が原料パルプ固形分当たり０．０５〜１．０質量％であることを特徴とする請求項１から６のいずれか１項に記載の製紙方法。 The papermaking method according to any one of claims 1 to 6, wherein the amount of the synthetic paper strength agent added is 0.05 to 1.0 mass% per raw pulp solid content. 天然紙力剤が混合チェストからファンポンプまでの間の少なくとも１箇所で添加されることを特徴とする請求項１から７のいずれか１項に記載の製紙方法。 The papermaking method according to any one of claims 1 to 7 , wherein the natural paper strength agent is added at at least one point between the mixing chest and the fan pump. 天然紙力剤がファンポンプからヘッドボックスまでの間の少なくとも１箇所で添加されることを特徴とする請求項１から７のいずれか１項に記載の製紙方法。 The papermaking method according to any one of claims 1 to 7 , wherein the natural paper strength agent is added at at least one point between the fan pump and the head box. アニオン性微粒子を澱粉粒子に混合した天然紙力剤であって、それらの混合比率が９９．９５／０．０５〜８０／２０であることを特徴とする天然紙力剤。 A natural paper strength agent in which anionic fine particles are mixed with starch particles, and the mixing ratio thereof is 99.95 / 0.05 to 80/20. 澱粉が０．００１ｍｅｑ／ｇ以上のネットカチオン電荷密度を示す請求項１０に記載の天然紙力剤。 The natural paper strength agent according to claim 10, wherein the starch exhibits a net cation charge density of 0.001 meq / g or more. 澱粉が固形分８％濃度の糊液で、５０℃、６０ｒｐｍにおいて１０〜５０００ｍＰａ・ｓのＢ型粘度を有する請求項１０または１１記載の天然紙力剤。 The natural paper strength agent according to claim 10 or 11, wherein the starch is a paste solution having a solid content of 8% and has a B-type viscosity of 10 to 5000 mPa · s at 50 ° C and 60 rpm.
JP2007292684A 2007-11-12 2007-11-12 Natural paper strengthening agent, and method for producing paperboard using the same Pending JP2009120967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007292684A JP2009120967A (en) 2007-11-12 2007-11-12 Natural paper strengthening agent, and method for producing paperboard using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007292684A JP2009120967A (en) 2007-11-12 2007-11-12 Natural paper strengthening agent, and method for producing paperboard using the same

Publications (2)

Publication Number Publication Date
JP2009120967A JP2009120967A (en) 2009-06-04
JP2009120967A5 true JP2009120967A5 (en) 2010-09-30

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Family Applications (1)

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JP2007292684A Pending JP2009120967A (en) 2007-11-12 2007-11-12 Natural paper strengthening agent, and method for producing paperboard using the same

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5811523B2 (en) * 2010-09-29 2015-11-11 栗田工業株式会社 Paper manufacturing method
JP2015533954A (en) * 2012-10-05 2015-11-26 スペシャリティ ミネラルズ （ミシガン） インコーポレイテッド Filler suspension and its use in the manufacture of paper
CN114016325A (en) * 2021-10-18 2022-02-08 广东轻工职业技术学院 Paper reinforcing agent and preparation method thereof, reinforced paper and preparation method thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE432951B (en) * 1980-05-28 1984-04-30 Eka Ab PAPER PRODUCT CONTAINING CELLULOSA FIBERS AND A BINDING SYSTEM CONTAINING COLOIDAL MILIC ACID AND COTIONIC STARCH AND PROCEDURE FOR PREPARING THE PAPER PRODUCT
JPH0192499A (en) * 1987-10-01 1989-04-11 Kyoritsu Yuki Co Ltd Method for increasing paper strength
JP2720460B2 (en) * 1988-06-27 1998-03-04 日産化学工業株式会社 Papermaking method
JP4875940B2 (en) * 2006-07-28 2012-02-15 三晶株式会社 Starch-based paper strength enhancer and paper making method using the same
JP2008063706A (en) * 2006-09-04 2008-03-21 Rasa Japan:Kk Method for producing paper and paperboard

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