JP2010116633A5 - - Google Patents

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Publication number
JP2010116633A5
JP2010116633A5 JP2008289394A JP2008289394A JP2010116633A5 JP 2010116633 A5 JP2010116633 A5 JP 2010116633A5 JP 2008289394 A JP2008289394 A JP 2008289394A JP 2008289394 A JP2008289394 A JP 2008289394A JP 2010116633 A5 JP2010116633 A5 JP 2010116633A5
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JP
Japan
Prior art keywords
pulp
bleaching
disaggregation
paper
kneading
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JP2008289394A
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Japanese (ja)
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JP2010116633A (en
JP5401935B2 (en
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Priority to JP2008289394A priority Critical patent/JP5401935B2/en
Priority claimed from JP2008289394A external-priority patent/JP5401935B2/en
Publication of JP2010116633A publication Critical patent/JP2010116633A/en
Publication of JP2010116633A5 publication Critical patent/JP2010116633A5/ja
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Claims (3)

印刷古紙を離解する離解工程、除塵するスクリーニング工程、脱墨処理するフローテーション工程、漂白塔において漂白をする漂白工程、分散処理するニーディング工程、洗浄処理する洗浄工程の組み合わせからなる古紙のパルプ化工程において、前記離解工程で絶乾パルプ質量当たり苛性ソーダを０．７〜３．５％、前記漂白工程の漂白塔出の処理温度を７５℃〜９０℃、前記ニーディング工程で９０℃〜１３０℃の高温ディスパーザー処理を行なう事を特徴とする脱墨パルプの製造方法。 Waste paper pulping consisting of a combination of a disaggregation process to disaggregate used printing paper, a screening process to remove dust, a flotation process to deinking, a bleaching process to bleach in a bleaching tower, a kneading process to disperse, and a washing process to wash In the process, 0.7 to 3.5% of caustic soda per mass of dry pulp in the disaggregation process, the treatment temperature of the bleaching tower in the bleaching process is 75 ° C to 90 ° C, and 90 ° C to 130 ° C in the kneading process A method for producing deinked pulp, characterized by performing a high-temperature disperser treatment. 請求項１の記載の方法で製造され、パルプシート中に０．００４〜５．０ｍｍ２の大きさのダート個数が５０００〜５００００個／ｍ２である脱墨パルプ。 A deinked pulp produced by the method according to claim 1 and having a dart count of 0.004 to 5.0 mm 2 in the pulp sheet of 5000 to 50000 pieces / m 2 . 請求項２記載の古紙パルプを１０〜１００％配合した紙。 A paper containing 10 to 100% of the waste paper pulp according to claim 2.
JP2008289394A 2008-11-12 2008-11-12 Method for producing deinked pulp Active JP5401935B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008289394A JP5401935B2 (en) 2008-11-12 2008-11-12 Method for producing deinked pulp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008289394A JP5401935B2 (en) 2008-11-12 2008-11-12 Method for producing deinked pulp

Publications (3)

Publication Number Publication Date
JP2010116633A JP2010116633A (en) 2010-05-27
JP2010116633A5 true JP2010116633A5 (en) 2011-01-27
JP5401935B2 JP5401935B2 (en) 2014-01-29

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ID=42304458

Family Applications (1)

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JP2008289394A Active JP5401935B2 (en) 2008-11-12 2008-11-12 Method for producing deinked pulp

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JP (1) JP5401935B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014025158A (en) * 2012-07-25 2014-02-06 Relief Niigata Co Method for producing wet ground pulp
JP6304023B2 (en) * 2014-12-26 2018-04-04 王子ホールディングス株式会社 Method for producing deinked pulp
JP6492798B2 (en) * 2015-03-10 2019-04-03 王子ホールディングス株式会社 Method for producing deinked waste paper pulp
JP6635889B2 (en) * 2016-07-15 2020-01-29 日本製紙株式会社 Waste paper pulp manufacturing method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3148749C2 (en) * 1981-12-09 1984-09-27 Steinbeis Papier GmbH, 7121 Gemmrigheim Papers, preferably for sheet-fed printing, made from recycled waste paper, and processes for their production
JP3166760B2 (en) * 1990-06-11 2001-05-14 王子製紙株式会社 Manufacturing method of high whiteness waste paper pulp
JPH08291490A (en) * 1995-04-14 1996-11-05 Hokuetsu Paper Mills Ltd Deinking and bleaching method of extra-lightweight waste newspaper
JP2002069876A (en) * 2000-08-22 2002-03-08 Nippon Paper Industries Co Ltd Method for deinking waste paper
JP3943913B2 (en) * 2000-11-24 2007-07-11 日本製紙株式会社 Method for producing recycled pulp
JP4064734B2 (en) * 2002-06-14 2008-03-19 日本製紙株式会社 Method for producing recycled pulp
JP4677344B2 (en) * 2005-12-28 2011-04-27 大王製紙株式会社 Method for producing waste paper pulp
JP2008002023A (en) * 2006-06-23 2008-01-10 Oji Paper Co Ltd Coated paper for printing
JP4952255B2 (en) * 2007-01-11 2012-06-13 王子製紙株式会社 Method for producing deinked pulp

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