JP2002201590A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2002201590A5 JP2002201590A5 JP2000400959A JP2000400959A JP2002201590A5 JP 2002201590 A5 JP2002201590 A5 JP 2002201590A5 JP 2000400959 A JP2000400959 A JP 2000400959A JP 2000400959 A JP2000400959 A JP 2000400959A JP 2002201590 A5 JP2002201590 A5 JP 2002201590A5
- Authority
- JP
- Japan
- Prior art keywords
- pulp
- calcium carbonate
- parts
- white carbon
- mass ratio
- 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.)
- Pending
Links
Description
【0016】
【実施例】
以下、本発明の実施例を示す。なお、以下断りのない限り部及び%は絶乾質量基準でいう。
(実施例1)
古紙パルプ60質量部、TMPパルプ40質量部、からなるパルプスラリー(原料パルプ)に、ホワイトカーボン(トクヤマ製:トクシール(見掛比重が0.17g/ml、比表面積が169m2/g、コールターカウンター法による粒度分布としてD50μmが4.6、D80μmが9.1、D97μmが20.2、吸油量234ml/100g))と炭酸カルシウム(奥多摩工業製:タマパール)とを、JIS P 8128に規定の550℃の灰分の原子吸光分析におけるSiO2とCaOとの質量割合が5:5、対パルプ絶乾質量割合が2%となるように添加し、さらに、歩留向上剤を0.2部、サイズ剤を0.2部添加して、ツインワイヤー抄紙機によりpH7で抄紙し、坪量43g/m 2 の新聞用紙を得た。[0016]
【Example】
Hereinafter, examples of the present invention will be shown. In the following, parts and% are based on bone dry mass unless otherwise noted.
Example 1
White carbon (made by Tokuyama: Tok Seal (apparent specific gravity: 0.17 g / ml, specific surface area: 169 m 2 / g, Coulter Counter) to a pulp slurry (raw pulp) consisting of 60 parts by mass of waste paper pulp and 40 parts by mass of TMP pulp As particle size distribution according to the method, D 50 μm is 4.6, D 80 μm is 9.1, D 97 μm is 20.2, oil absorption amount is 234 ml / 100 g)) and calcium carbonate (Ohtama Industrial Co., Ltd .: Tama Pearl), JIS It is added so that the mass ratio of SiO 2 and CaO in the atomic absorption analysis of the ash content at 550 ° C. specified in P 8128 is 5: 5 and the mass ratio to the bone dry of pulp is 2%, and a retention aid is further added. 0.2 parts and 0.2 parts of a sizing agent were added, and papermaking was conducted at pH 7 using a twin-wire paper machine to obtain newsprint paper having a basis weight of 43 g / m 2 .
【0017】
(実施例2〜5)
実施例1の填料(ホワイトカーボン及び炭酸カルシウム)の対パルプ絶乾質量割合を変化させて、実施例2〜5とした。[0017]
(Examples 2 to 5)
By changing the pulp absolute dry mass ratio of filler of Example 1 (the White carbon and calcium carbonate), and as in Examples 2-5.
【0018】
(比較例1)
実施例3のホワイトカーボン及び炭酸カルシウムの質量比を変え、比較例1とした。[0018]
(Comparative example 1)
Changing the mass ratio of the White carbon and calcium carbonate of Example 3, were as in Comparative Example 1.
【0019】
(比較例2)
実施例3のホワイトカーボン及び炭酸カルシウムの質量比を変え(炭酸カルシウムを添加せず、ホワイトカーボンのみを添加した。)、比較例2とした。[0019]
(Comparative example 2)
Changing the mass ratio of the White carbon and calcium carbonate of Example 3 (without addition of calcium carbonate, was added only white carbon.) Were Comparative Example 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000400959A JP2002201590A (en) | 2000-12-28 | 2000-12-28 | Paper for newspaper and method for producing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000400959A JP2002201590A (en) | 2000-12-28 | 2000-12-28 | Paper for newspaper and method for producing the same |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2002201590A JP2002201590A (en) | 2002-07-19 |
JP2002201590A5 true JP2002201590A5 (en) | 2004-09-09 |
Family
ID=18865458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000400959A Pending JP2002201590A (en) | 2000-12-28 | 2000-12-28 | Paper for newspaper and method for producing the same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2002201590A (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050107579A (en) * | 2003-03-25 | 2005-11-14 | 닛뽄세이시가부시끼가이샤 | Newsprint paper for offset printing |
JP4605518B2 (en) * | 2003-09-24 | 2011-01-05 | ハリマ化成株式会社 | Method for producing newsprint containing rosin emulsion sizing agent for newsprint |
JP4592303B2 (en) * | 2004-03-03 | 2010-12-01 | 大王製紙株式会社 | Method for producing pseudo-neutral newsprint |
US7611606B2 (en) | 2004-03-30 | 2009-11-03 | Nippon Paper Industries Co., Ltd. | Low-density neutral paper |
JP2006063481A (en) * | 2004-08-26 | 2006-03-09 | Daio Paper Corp | Newsprint |
JP2006063501A (en) * | 2004-08-30 | 2006-03-09 | Daio Paper Corp | Paper for newspaper |
JP5087209B2 (en) * | 2004-10-29 | 2012-12-05 | 大王製紙株式会社 | Method for producing neutral newsprint |
JP4577042B2 (en) * | 2005-02-28 | 2010-11-10 | 王子製紙株式会社 | Newspaper for offset printing |
JP4732004B2 (en) * | 2005-05-27 | 2011-07-27 | 大王製紙株式会社 | Newspaper |
JP5135012B2 (en) * | 2008-03-18 | 2013-01-30 | 大王製紙株式会社 | Newspaper and production method thereof |
JP5615506B2 (en) * | 2009-03-30 | 2014-10-29 | 大王製紙株式会社 | Newspaper |
-
2000
- 2000-12-28 JP JP2000400959A patent/JP2002201590A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2002201590A5 (en) | ||
US5707493A (en) | Temperature-activated polysilicic acids in paper production | |
FI70954C (en) | FOER FARING FRAMSTAELLNING AV PAPPER | |
JP2004502048A5 (en) | ||
JP4111936B2 (en) | Reduction of odor in absorbent products | |
FI953238A (en) | Filler used in papermaking and method of making the filler | |
CA2120586A1 (en) | Fuel element composition | |
RU2006126678A (en) | FILLER FOR PAPER MANUFACTURE | |
CA2318072A1 (en) | Improved papermaking processes | |
AU710308B2 (en) | Acid tolerant calcium carbonate composition and uses therefor | |
CA2118109A1 (en) | Neutral papermaking | |
WO1995023021A1 (en) | Silica-based sols, preparation and use of the sols | |
PL345459A1 (en) | Surface modified fillers for sizing paper | |
JP2002201590A (en) | Paper for newspaper and method for producing the same | |
JP2001262485A5 (en) | ||
JP2008156774A (en) | Paper for book and method for producing the same | |
CA2197301A1 (en) | Synthetic mineral microparticles for retention aid systems | |
DE69636950T8 (en) | Method for improving the water repellency of printing papers | |
Carré | Starch and alumina/silica based compounds as a microparticle retention aid system: An explanation of the synergisms | |
JP5122872B2 (en) | Neutral paper and method for producing neutral paper | |
JP5222865B2 (en) | Book paper and manufacturing method thereof | |
GB9813246D0 (en) | Improvements in or relating to organic compounds | |
JPH04153391A (en) | Production of inorganic sheet | |
JP2005097755A (en) | Inorganic filler-filled low density paper | |
TH18620A (en) | Actions on inorganic pigments with carboxymethylcellulose compounds |