JP2003306890A - Bulky coated paper made from waste paper and method for producing the same - Google Patents
Bulky coated paper made from waste paper and method for producing the sameInfo
- Publication number
- JP2003306890A JP2003306890A JP2002116344A JP2002116344A JP2003306890A JP 2003306890 A JP2003306890 A JP 2003306890A JP 2002116344 A JP2002116344 A JP 2002116344A JP 2002116344 A JP2002116344 A JP 2002116344A JP 2003306890 A JP2003306890 A JP 2003306890A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- pulp
- bulking agent
- waste paper
- waste
- 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
Landscapes
- Paper (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本願発明は、古紙処理パルプ
を含むパルプから製造される嵩高な塗工紙とその製造方
法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bulky coated paper produced from pulp including waste paper treated pulp and a method for producing the same.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】バルプ
に紙用嵩高剤を添加して紙厚を増大させることは既に知
られているが、古紙処理パルプを含むパルプの場合は、
同古紙処理パルプに単に紙用嵩高剤を添加しただけで
は、木材繊維から製造したパルプに比して紙厚が低下す
る問題が知見された。2. Description of the Related Art It is already known to add a bulking agent for paper to valp to increase the paper thickness. However, in the case of pulp containing waste paper treated pulp,
It has been found that simply adding a bulking agent for paper to the waste paper treated pulp causes a decrease in paper thickness as compared with pulp manufactured from wood fibers.
【０００３】本願発明は、古紙処理パルプを使用する場
合であっても十分な紙厚が維持されるようにした古紙使
用嵩高塗工紙とその製造方法を提供することを目的とす
るものである。An object of the present invention is to provide a bulky coated paper for use with waste paper and a method for producing the same so that a sufficient paper thickness can be maintained even when the waste paper treated pulp is used. .
【０００４】[0004]
【課題を解決するための手段】本願発明の古紙使用嵩高
塗工紙とその製造方法は、古紙処理パルプを含むパルプ
に対して、紙用嵩高剤と、該紙用嵩高剤の歩留り向上を
目的とする炭酸カルシウムを対パルプで１０〜１００ｋ
ｇ／ｔ添加するとともに、嵩高剤添加時の紙原料のＰＨ
を８〜１０に調成した後、抄紙、乾燥及び塗工すること
を基本思想とする。The bulky coated paper using waste paper and the method for producing the same according to the present invention are intended to improve the yield of the bulkiness agent for paper and the bulkiness agent for paper with respect to pulp containing waste paper treatment pulp. 10 to 100k of calcium carbonate for pulp
In addition to adding g / t, PH of paper raw material when adding bulking agent
The basic idea is to prepare, dry, and coat after preparing 8 to 10.
【０００５】上記のようにすることにより、製品となる
嵩高塗工紙の紙厚の低下を抑制した古紙配合の嵩高塗工
紙を得ることができる。By doing the above, it is possible to obtain a bulky coated paper containing a waste paper in which a reduction in the thickness of the bulky coated paper as a product is suppressed.
【０００６】本願発明で使用する古紙としては、特に限
定するものではないが、たとえば、上物古紙、雑誌古紙
等がある。The waste paper used in the present invention is not particularly limited, but for example, fine waste paper, magazine waste paper, and the like.
【０００７】製品としての塗工紙を嵩高にするための紙
用嵩高剤としては、特に限定するものではないが、たと
えば、ＫＢ１１５（花王株式会社製）等がある。The bulking agent for paper for making the coated paper as a product bulky is not particularly limited, but examples thereof include KB115 (manufactured by Kao Corporation).
【０００８】紙用嵩高剤の歩留り向上の目的で使用され
る炭酸カルシウムは、対パルプで１０ｋｇ／ｔ未満では
紙用嵩高剤の歩留りが過少で、一方、１００ｋｇ／ｔ超
では、添加量の割りには歩留り向上効果がみられない。
なお、必要に応じて適宜の他の填料（たとえば、タルク
等）や薬品（たとえば、内添紙力増強剤、歩留向上剤
等）を使用することは差し支えない。また、本願発明で
使用する塗被液には、分散剤、増粘剤、保水剤、消泡
剤、耐水化剤、潤滑剤等通常の塗被紙用顔料に配合され
る各種助剤を使用しても良い。Calcium carbonate used for the purpose of improving the yield of the bulking agent for paper is less than 10 kg / t with respect to the pulp, and the yield of the bulking agent for paper is too small. Has no yield improvement effect.
If necessary, other appropriate fillers (eg, talc) and chemicals (eg, internal paper strength enhancer, retention improver, etc.) may be used. Further, the coating liquid used in the present invention uses various auxiliaries such as dispersants, thickeners, water retention agents, defoaming agents, water resistance agents, lubricants and the like which are usually added to coated paper pigments You may.
【０００９】本願発明では嵩高剤添加時の紙原料のＰＨ
を８〜１０に調成するが、嵩高剤添加時の紙原料のＰＨ
を調成するには、たとえば、炭酸カルシウム、硫酸バン
ド、あるいは苛性ソーダ等の添加量を加減する方法があ
る。In the present invention, the pH of the paper raw material when the bulking agent is added is
Is adjusted to 8 to 10, but the pH of the paper raw material when the bulking agent is added
In order to prepare, there is a method of adjusting the addition amount of calcium carbonate, a sulfuric acid band, caustic soda, or the like.
【００１０】嵩高剤添加時の紙原料のＰＨを８未満又は
１０超にすると、嵩高剤の歩留りが低下し、紙厚向上が
図れない。When the pH of the paper raw material at the time of adding the bulking agent is less than 8 or more than 10, the yield of the bulking agent is lowered and the paper thickness cannot be improved.
【００１１】したがって、本願発明では、嵩高剤添加時
の紙原料のＰＨを８〜１０に調成するものである。Therefore, in the present invention, the pH of the paper raw material when the bulking agent is added is adjusted to 8 to 10.
【００１２】以上のように調成された紙原料は、適宜型
式の抄紙機、乾燥機、塗工機を経て、抄紙、乾燥、塗工
されて、古紙配合の嵩高塗工紙が製造される。 なお、
本願発明の古紙使用嵩高塗工紙の緊度は、０．７５０〜
０．９００ｇ／ｃｍ3とするのが好ましい。０．７５０
ｇ／ｃｍ3未満では表面平滑性および印刷光沢が低下
し、０．９００ｇ／ｃｍ3を超えると紙厚が低下する。The paper raw material prepared as described above is subjected to papermaking, drying and coating through an appropriate type of paper machine, dryer and coating machine to produce a bulky coated paper containing waste paper. . In addition,
The tenacity of the bulky coated paper using waste paper of the present invention is 0.750 to
It is preferably 0.900 g / cm 3 . 0.750
If it is less than g / cm 3 , the surface smoothness and printing gloss are reduced, and if it exceeds 0.900 g / cm 3 , the paper thickness is reduced.
【００１３】[0013]
【実施例】次に、本願発明の好適な実施例を説明すると
ともに、本願発明の技術的優位性を説明するための比較
対象として、いくつかの比較例を例示する。EXAMPLES Next, preferred examples of the present invention will be described, and some comparative examples will be illustrated as comparative objects for explaining the technical superiority of the present invention.
【００１４】なお、本願発明で使用する古紙としては、
上物古紙あるいは雑誌古紙等があるが、以下の各実施例
及び比較例とも、原料古紙として上物古紙を使用した。
又、使用した紙用嵩高剤はＫＢ１１５（花王株式会社
製）である。嵩高剤添加時の紙原料のＰＨを調成する方
法としては、前記の通り、炭酸カルシウム、硫酸バンド
あるいは苛性ソーダ等の添加量を加減する方法等がある
が、本実施例及び比較例では、硫酸バンドを加減するこ
とによって調成した。The used paper used in the present invention is as follows.
There are fine waste paper, magazine waste paper, etc., but in each of the following examples and comparative examples, fine waste paper was used as the raw waste paper.
The bulking agent for paper used is KB115 (manufactured by Kao Corporation). As a method for adjusting the pH of the paper raw material at the time of adding the bulking agent, as described above, there is a method of adjusting the addition amount of calcium carbonate, a sulfuric acid band, caustic soda, or the like. It was arranged by adjusting the band.
【００１５】抄紙、乾燥及び塗工の各工程は次の条件下
で行われた。The steps of paper making, drying and coating were carried out under the following conditions.
【００１６】抄紙及び乾燥
オントップ多筒抄紙機を使用して抄速５００〜７００ｍ
／分で抄紙、乾燥した。Paper making and drying 500-700 m of paper making speed using on-top multi-cylinder paper machine
Paper was made at a speed of 1 / min and dried.
【００１７】塗工
ブレードコーターで塗工速度５００〜９００ｍ／分で塗
工した。Coating was carried out with a coating blade coater at a coating speed of 500 to 900 m / min.
【００１８】なお、塗被液は次の通りである。The coating liquid is as follows.
【００１９】本実施例及び比較例において使用する塗被
液は顔料、共重合体ラテックス、デンプン、助剤から構
成されている。The coating liquid used in this example and the comparative example is composed of a pigment, a copolymer latex, starch and an auxiliary agent.
【００２０】顔料としては、重質炭酸カルシウム、カオ
リン等があるが、本実施例及び比較例でも重質炭酸カル
シウム、カオリンを使用した。As the pigment, there are heavy calcium carbonate, kaolin and the like. In the present examples and comparative examples, heavy calcium carbonate and kaolin were used.
【００２１】本実施例及び比較例において使用可能な共
重合体ラテックスの種類は、スチレン・ブタジエン系の
共重合体ラテックス、あるいはこれらの各共重合体ラテ
ックスの化学反応による変成物等がある。本実施例及び
比較例ではスチレン・ブタジエン系ラテックスを使用し
た。The types of copolymer latexes that can be used in the present examples and comparative examples include styrene / butadiene copolymer latexes, and modified products of these copolymer latexes by chemical reaction. A styrene-butadiene latex was used in the examples and comparative examples.
【００２２】また、ラテックス以外に塗被層の保水性を
維持し、原紙の内部結合強度を高めるために、エステル
化デンプン、エーテル化デンプンを併用することが好ま
しい。本実施例及び比較例ではエステル化デンプンを使
用した。In addition to latex, it is preferable to use esterified starch and etherified starch in combination in order to maintain the water retention of the coating layer and increase the internal bond strength of the base paper. Esterified starch was used in the examples and comparative examples.
【００２３】表１は、本願発明の方法で製造した塗工紙
（実施例１〜３）と、その他の方法で製造した塗工紙
（比較例１〜４）の諸物性の一覧表である。Table 1 is a list of physical properties of coated papers (Examples 1 to 3) produced by the method of the present invention and coated papers (Comparative Examples 1 to 4) produced by other methods. .
【００２４】[0024]
【表１】 [Table 1]
【００２５】[0025]
【発明の効果】表１からも明らかなように、炭酸カルシ
ユムの添加量と嵩高剤添加時の紙原料のＰＨの数値が本
願発明の範囲内にあるもの（実施例１〜３）は、その他
の比較例（古紙使用）のものに比して、同一の米坪で紙
厚を一定以上（嵩高剤無配合のものに比して１０％〜２
０％）高くすることができた。As is clear from Table 1, the amount of calcium carbonate added and the PH value of the paper raw material at the time of adding the bulking agent are within the scope of the present invention (Examples 1 to 3). Compared with the comparative example (using waste paper), the paper thickness is constant above a certain level (10% to 2% compared to the one without bulking agent).
0%) could be increased.
Claims (2)
高剤と、該パルプに対して１０〜１００ｋｇ／ｔの炭酸
カルシウムを添加するとともに、嵩高剤添加時の紙原料
のｐＨを８〜１０に調成した後、抄紙、乾燥及び塗工す
ることを特徴とする古紙使用嵩高塗工紙の製造方法。1. A bulking agent for paper and 10 to 100 kg / t of calcium carbonate with respect to the pulp are added to pulp including waste paper treated pulp, and the pH of the paper raw material when the bulking agent is added is 8 to 10 A method for producing a bulky coated paper using waste paper, which comprises performing papermaking, drying and coating after the preparation of the above.
高剤と、該パルプに対して１０〜１００ｋｇ／ｔの炭酸
カルシウムを添加するとともに、嵩高剤添加時の紙原料
のｐＨを８〜１０に調整した後、抄紙、乾燥および塗工
して製造された古紙使用嵩高塗工紙であって、緊度が
０．７５０〜０．９００ｇ／ｃｍ3であることを特徴と
する古紙使用嵩高塗工紙。2. A bulking agent for paper and 10 to 100 kg / t of calcium carbonate based on the pulp are added to pulp containing waste paper treated pulp, and the pH of the paper raw material when the bulking agent is added is 8 to 10 after adjusting the paper making, a drying and waste paper used bulky coated paper prepared by coating, paper used bulky coating, characterized in that bulk density is 0.750~0.900g / cm 3 Craft paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002116344A JP2003306890A (en) | 2002-04-18 | 2002-04-18 | Bulky coated paper made from waste paper and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002116344A JP2003306890A (en) | 2002-04-18 | 2002-04-18 | Bulky coated paper made from waste paper and method for producing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003306890A true JP2003306890A (en) | 2003-10-31 |
Family
ID=29397133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002116344A Pending JP2003306890A (en) | 2002-04-18 | 2002-04-18 | Bulky coated paper made from waste paper and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003306890A (en) |
-
2002
- 2002-04-18 JP JP2002116344A patent/JP2003306890A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5725648A (en) | Paper coatings containing guar or reduced molecular weight guar | |
| KR900004687B1 (en) | Method for producing low sheet gloss coated paper | |
| US5262238A (en) | Cationic copolymers which are insoluble in water, new dispensions and their use in the coating of papers | |
| JP6248567B2 (en) | Cast coated base paper and cast coated paper for process paper substrate | |
| JP2003306890A (en) | Bulky coated paper made from waste paper and method for producing the same | |
| JP2003306889A (en) | Bulky coated paper made from waste paper and method for producing the same | |
| JP2003306891A (en) | Bulky coated paper made from waste paper and method for producing the same | |
| JP2003342898A (en) | Bulky coated paper using wastepaper and method for producing the same | |
| JP2019167663A (en) | Base paper for process release paper | |
| JP2506350B2 (en) | Paper coating composition | |
| JP3552007B2 (en) | Coated paper for web offset printing | |
| JPH03193995A (en) | Production of cast coated paper | |
| JP3182590B2 (en) | Multi-layer coated paper for offset printing | |
| JPH06211911A (en) | Paper coating copolymer latex and paper coating composition containing the latex | |
| JP3233704B2 (en) | Double coated paper for offset printing | |
| JP2002146697A (en) | Multilayer coated paper for offset printing | |
| JP2004059393A (en) | Modified titanium dioxide physically/chemically modified by hydrophilic organic compound, method of manufacturing the same and new material using the same | |
| JPH06341100A (en) | Production of double-side coated paper | |
| JP2006037292A (en) | Method for producing coated sheet for printing | |
| JPH09111691A (en) | Production of neutral newsprint paper | |
| JPH09316797A (en) | Coated paper for gravure printing | |
| JP2005336675A (en) | Coating liquid for coated sheet for printing, and coated sheet for printing | |
| JPS63120196A (en) | Paper coating composition | |
| JPH1096193A (en) | Coated paper and production of the same | |
| JP2002180395A (en) | Multilayer coated paper sheet for offset printing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Effective date: 20050524 Free format text: JAPANESE INTERMEDIATE CODE: A971007 |
|
| A131 | Notification of reasons for refusal |
Effective date: 20050614 Free format text: JAPANESE INTERMEDIATE CODE: A131 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20051101 |