WO2013140844A1 - White paper board, and printed matter, printed box or packaging container each produced using same - Google Patents
White paper board, and printed matter, printed box or packaging container each produced using same Download PDFInfo
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- WO2013140844A1 WO2013140844A1 PCT/JP2013/051268 JP2013051268W WO2013140844A1 WO 2013140844 A1 WO2013140844 A1 WO 2013140844A1 JP 2013051268 W JP2013051268 W JP 2013051268W WO 2013140844 A1 WO2013140844 A1 WO 2013140844A1
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- layer
- inorganic filler
- calcium carbonate
- white paperboard
- paper
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/28—Colorants ; Pigments or opacifying agents
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
Definitions
- the present invention relates to white paperboard and a packaging container using the same, and more specifically, it is composed of two or more layers, and can control moderate rigidity and whiteness, thereby improving the formation.
- the present invention relates to a white paperboard and a printed matter, a printing box or a packaging container manufactured using the white paperboard.
- White paperboard is a multi-layer paperboard with two or more layers, with bleached pulp mainly blended in the front and back layers, and pulp and wastepaper in the middle layer (intermediate layers other than the front and back layers, the same applies hereinafter). It is roughly divided into Manila balls, and white balls that mainly contain bleached pulp on the surface and mainly old paper in the middle and back layers.
- Manila balls are used for printed items such as calendars, cards, book covers, picture books, postcards, and cosmetic boxes, soap boxes, gift cases, cigarette cartons, caramel boxes, etc.
- White balls are used for groceries. Used for packaging containers for miscellaneous goods, detergents, etc. In either case, in order to improve printability, smoothness, and concealability, a paint containing a filler is generally applied.
- the beating freeness of the surface layer of white paperboard or the lower layer is set to 250 to 500 cc, and the content of the pigment contained in the layer is set to 10% by weight or more with respect to the pulp.
- Concealment of white paperboard (conceals the color of the used paper mixed in the middle layer), visual smoothness, printability, surface strength, crease cracking measures (the ruled line part when white paperboard is used as a box should not break) (Patent document 1: Japanese Patent No. 3008313).
- the surface layer contains a pigment of 10% by weight or more.
- the amount of the pulp is relatively reduced, and the pulp fiber is the main factor in developing the paper strength.
- the filler inhibits the hydrogen bonding of the paper, resulting in a rapid decrease in paper strength.
- paper strength has strength such as tensile strength and stiffness such as bending stiffness, but these reductions in paper strength cause paper breakage at the time of paper manufacture and printing, thereby deteriorating operational efficiency. Workability deteriorates due to paper dust generation during printing.
- Patent Document 2 Japanese Patent Laid-Open No. 10-96199.
- Patent Document 2 specifies only the ash content of the back layer, and specializes in the improvement of the back fluff, and can control moderate rigidity, and the formation and whiteness.
- the directionality is different from that of the present invention in which white paper with improved slab is obtained.
- an object of the present invention is to provide such a white paperboard, that is, a white paperboard whose paper layer formation is improved and whose rigidity and whiteness can be controlled.
- the invention according to claim 1 is characterized in that, in the white paperboard having a multi-layer structure composed of three or more layers, 1.0 to 9.0% of pulp fibers in each of the front layer and the back layer.
- the inorganic filler is a combination of one or more of light calcium carbonate, heavy calcium carbonate, clay and talc.
- the light calcium carbonate is a rosetta type.
- the invention according to claim 4 for solving the above problem is a printed matter, a printing box, or a packaging container obtained from any of the above-mentioned white paperboard.
- the present invention is as described above, and an inorganic filler such as light calcium carbonate and heavy calcium carbonate is added to each of the front layer and the back layer of white paperboard composed of three or more layers in an amount of 1.0-9. Since it is blended so as to contain 0.0%, there is an effect that the entanglement with the mixed pulp becomes good and the formation of the surface layer and the back layer is improved (if the pulp is close to 100%, the entanglement between the pulps is It becomes too much and the formation deteriorates.) In addition, by improving the formation in this way, there is an effect of improving the smoothness in the surface layer and the back layer.
- an inorganic filler such as light calcium carbonate and heavy calcium carbonate
- the middle layer is blended with waste paper pulp and recycled broke in the factory (paper equivalent to damaged paper generated during production in the factory) for the purpose of cost reduction, etc., and the printability is improved on the surface and back layers. Therefore, virgin pulp is often blended, but the middle layer may have low whiteness due to the quality of the blended pulp. Accordingly, the layer structure becomes uniform, so that the color of the middle layer can be concealed (the concealment effect).
- the white paperboard according to the present invention is a multi-layered paper made up of three or more layers, and is blended so that each of the front layer and the back layer contains 1.0 to 9.0% inorganic filler with respect to the pulp fiber. Then, the intermediate layer is blended so as to contain 2.0 to 15.0% of an inorganic filler with respect to the pulp fiber, and the surface layer, the intermediate layer and the back layer are made by combining.
- Fillers of the present invention include light calcium carbonate, heavy calcium carbonate, clay, calcined kaolin, deramikaolin, white carbon, magnesium carbonate, barium carbonate, titanium dioxide, zinc oxide, silicon oxide, amorphous silica, calcium carbonate /
- inorganic fillers such as silica composite, aluminum hydroxide, calcium hydroxide, magnesium hydroxide, zinc hydroxide and sepiolite is used, or a plurality of them are used in combination.
- a recycled filler obtained by incinerating sludge generated in a process of recycling used paper or a process of manufacturing paper can also be used.
- the crystal form of light calcium carbonate may be either calcite or aragonite, and the shape may be any of acicular, columnar, spindle, spherical, cubic, and rosetta types. Of these, Rosetta-type calcite light calcium carbonate is particularly preferable.
- the rosetta type refers to a shape in which spindle-shaped light calcium carbonate primary particles are aggregated in a corrugated shape, and is characterized by a high specific surface area and oil absorption.
- the average particle diameter of calcium carbonate is about 0.1 to 20 ⁇ m, preferably 0.5 to 10 ⁇ m, more preferably 1 to 5 ⁇ m.
- White paperboard paper is made with a multi-layer machine with two or more layers, and the pulp used is blended with bleached or unbleached wood pulp and mechanical pulp in consideration of printability.
- the filler content of these pulps is about 0.5%. Therefore, considering the yield, the filler should be adjusted so that the content of each inorganic filler in the front and back layers is 1.0 to 9.0%.
- the middle layer including the front and lower layers, in addition to the above pulp, recycled paper pulp such as used magazine paper and used cardboard, and circulating broke equivalent to damaged paper generated in the factory are blended for the purpose of cost reduction.
- the bleached pulp has a filler content of about 0.5%
- the waste paper pulp has a filler content of 10% or more (varies depending on the type of used paper and collection)
- the filler content in the circulating broke is 2.0-20.0.
- % Generally, the circulation broke includes filler-coated waste paper, uncoated base paper, or a mixture thereof, but the filler in the circulation broke in one factory is the same as the filler described in this application.
- the middle layer is blended so that the content of the inorganic filler is 2.0 to 15.0%. For example, in the middle layer, since a fresh inorganic filler is added to a circulating broke having a large amount of filler, the content of the inorganic filler is higher than that of the front layer and the back layer.
- the base paper of the white paperboard according to the present invention is made by a multi-layered assembling machine such as a long net, a circular net, or an ultraformer, and then coated with a paint containing an inorganic pigment on one side or both sides as necessary.
- Examples 1 to 7 Various contents of the inorganic filler content in the surface layer and back layer are changed within the range of 1.0 to 9.0%, so that the content of the inorganic filler content in the middle layer is 2.0 to 15.0%. Then, after white paperboard base paper was made by three-layer papermaking by the papermaking method, the whiteboard paper produced by coating the color on both sides with double coating to a total of 20 g / m 2 , Examples 1 to 7 were used. In the middle layer, 50% of the same type of broken paper broke (filler content: about 10%) generated in the factory was blended.
- Comparative Examples 1 to 11 The content of the inorganic filler in the surface layer and the back layer is variously changed so as to be out of the range of 1.0 to 9.0%, and the content of the inorganic filler in the middle layer is 2.0 to 15. Comparative Examples 1 to 11 were white paperboards produced by papermaking and coating in the same manner as in the Examples except that they were blended out of the range of 0%.
- Comparative Example 12 in which the content of the inorganic filler in the middle layer is less than 2.0%, the proportion of the pulp in the middle layer is excessively increased, the formation of the middle layer is deteriorated, and the formation of the surface layer and the back layer is It got worse.
- the content of the inorganic filler in the front layer and the back layer is set in the range of 1.0 to 9.0%, and the content of the inorganic filler in the middle layer is 2.0 to 15.0%. It was confirmed that the white paperboard according to the present invention set and manufactured within this range is effective in all aspects of formation, smoothness, rigidity and whiteness.
- the packaging box manufactured using the white paperboard according to the present invention has a good appearance and has an appropriate rigidity.
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Abstract
A white paper board in which the formation state of a paper layer is improved and of which the rigidity and the degree of whiteness can be controlled. The white paper board has a multi-layered structure composed of three or more layers, wherein an inorganic filler is added to each of a front-side layer and a back-side layer in an amount of 1.0 to 9.0% relative to the amount of pulp fibers, the inorganic filler is added to an intermediate layer in an amount of 2.0 to 15.0% relative to the amount of the pulp fibers, and the white paper board is produced by combining the front-side layer, the intermediate layer and the back-side layer. As the inorganic filler, at least one component selected from light calcium carbonate, heavy calcium carbonate, clay and talc or a combination of two or more components selected from the above-mentioned materials is used. For example, the light calcium carbonate is of a rosetta type.
Description
本発明は、白板紙及びそれを用いた包装容器に関するものであり、より詳細には、２層以上の複数層からなり、適度な剛度と白色度の制御が可能で、地合の向上を企図した白板紙及びその白板紙を用いて製造した印刷物、印刷箱又は包装容器に関するものである。
The present invention relates to white paperboard and a packaging container using the same, and more specifically, it is composed of two or more layers, and can control moderate rigidity and whiteness, thereby improving the formation. The present invention relates to a white paperboard and a printed matter, a printing box or a packaging container manufactured using the white paperboard.
白板紙は２層以上の多層抄きの板紙であり、表層と裏層に晒パルプを主体的に配合し、中層（表層・裏層以外の中間層、以下同様）にパルプ・古紙等を配合したマニラボールと、表層に晒パルプを主体的に配合し、中層・裏層に主体的に古紙を配合した白ボールとに大別される。
White paperboard is a multi-layer paperboard with two or more layers, with bleached pulp mainly blended in the front and back layers, and pulp and wastepaper in the middle layer (intermediate layers other than the front and back layers, the same applies hereinafter). It is roughly divided into Manila balls, and white balls that mainly contain bleached pulp on the surface and mainly old paper in the middle and back layers.
マニラボールは、カレンダー、カード類、本のカバー、図鑑、絵ハガキ等の印刷物や化粧箱、石鹸用箱、ギフトケース、タバコカートン、キャラメル箱等の印刷箱に使用され、白ボールは、食料品、雑貨、洗剤等の包装容器等に使用される。そのいずれの場合も、印刷適性、平滑性、並びに隠蔽性を向上させるために、填料を含む塗料が塗工されるのが一般的である。
Manila balls are used for printed items such as calendars, cards, book covers, picture books, postcards, and cosmetic boxes, soap boxes, gift cases, cigarette cartons, caramel boxes, etc. White balls are used for groceries. Used for packaging containers for miscellaneous goods, detergents, etc. In either case, in order to improve printability, smoothness, and concealability, a paint containing a filler is generally applied.
従来、白板紙の表層、若しくは、表下層（表層のすぐ下の層）の叩解フリーネスを２５０～５００ｃｃとし、前記層に含有される顔料の含有率を対パルプで１０重量％以上とすることで、白板紙の隠蔽性(中層に配合されている古紙の色を隠蔽する)、目視平滑性、印刷適性、表面強度、罫線割れ対策（白板紙を箱にしたときの罫線部が割れないこと）等についての改善を企図したものがある（特許文献１：特許第３００８３１３号公報）。
Conventionally, the beating freeness of the surface layer of white paperboard or the lower layer (the layer immediately below the surface layer) is set to 250 to 500 cc, and the content of the pigment contained in the layer is set to 10% by weight or more with respect to the pulp. , Concealment of white paperboard (conceals the color of the used paper mixed in the middle layer), visual smoothness, printability, surface strength, crease cracking measures (the ruled line part when white paperboard is used as a box should not break) (Patent document 1: Japanese Patent No. 3008313).
この特許文献１の発明の場合は、表層に１０重量％以上の顔料を含有させるが、そのようにした場合は相対的にパルプ配合量が低下し、紙力発現の主要因であるパルプ繊維間の水素結合を填料が阻害するため、紙力が急激に低下する結果となる。一般に紙力には、引張強さ等の強度及び曲げこわさ等の剛度があるが、これら紙力の低下は、紙の製造時や印刷時の断紙を引き起こして操業効率を悪化させ、また、印刷時の紙粉発生等により、作業性の悪化をもたらす。
In the case of the invention of Patent Document 1, the surface layer contains a pigment of 10% by weight or more. In such a case, the amount of the pulp is relatively reduced, and the pulp fiber is the main factor in developing the paper strength. As a result, the filler inhibits the hydrogen bonding of the paper, resulting in a rapid decrease in paper strength. In general, paper strength has strength such as tensile strength and stiffness such as bending stiffness, but these reductions in paper strength cause paper breakage at the time of paper manufacture and printing, thereby deteriorating operational efficiency. Workability deteriorates due to paper dust generation during printing.
また、３層以上の層から成る白板紙の裏層中の灰分を平均値で１２％以下、且つ、最大値で１４％以下にすることにより、白板紙の保存、輸送時の裏ケバを改善することを企図したものがある（特許文献２：特開平１０－９６１９９号公報）。
In addition, by reducing the ash content in the back layer of white paperboard consisting of three or more layers to an average value of 12% or less and a maximum value of 14% or less, the backlash during storage and transportation of white paperboard is improved. There is one that is intended to do this (Patent Document 2: Japanese Patent Laid-Open No. 10-96199).
しかし、この特許文献２の発明は、裏層の灰分のみ特定するものであり、また、裏ケバの改善に特化したものであって、適度な剛度の制御が可能で、地合と白色度が向上した白板紙を得ようとする本願発明とは、方向性が異なっている。
However, the invention of Patent Document 2 specifies only the ash content of the back layer, and specializes in the improvement of the back fluff, and can control moderate rigidity, and the formation and whiteness. The directionality is different from that of the present invention in which white paper with improved slab is obtained.
上述したように、従来、白板紙の地合改善、剛度及び白色度の制御が可能な白板紙は提唱されていなかった。そこで、本発明はそのような白板紙、即ち、紙層の地合が改善され、且つ、剛度及び白色度の制御が可能な白板紙を提供することを課題とする。
As described above, conventionally, no white paperboard capable of improving the formation of white paperboard and controlling the rigidity and whiteness has been proposed. Therefore, an object of the present invention is to provide such a white paperboard, that is, a white paperboard whose paper layer formation is improved and whose rigidity and whiteness can be controlled.
上記課題を解決するための請求項１に記載の発明は、３層以上から成る多層抄きされた白板紙において、表層と裏層のそれぞれにパルプ繊維に対して１．０～９．０％の無機填料を含有するように配合し、中層にパルプ繊維に対して２．０～１５．０％の無機填料を含有するように配合し、表層と中層と裏層を抄き合わせて成る白板紙である。
In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that, in the white paperboard having a multi-layer structure composed of three or more layers, 1.0 to 9.0% of pulp fibers in each of the front layer and the back layer. A white board that is formulated so as to contain an inorganic filler, and that the middle layer contains 2.0 to 15.0% of an inorganic filler with respect to pulp fibers, and the surface layer, the middle layer, and the back layer are combined. Paper.
前記無機填料は、軽質炭酸カルシウム、重質炭酸カルシウム、クレー、タルクのうちの１又は複数を組み合わせたものである。
The inorganic filler is a combination of one or more of light calcium carbonate, heavy calcium carbonate, clay and talc.
好ましい実施形態においては、前記軽質炭酸カルシウムは、ロゼッタ型とされる。
In a preferred embodiment, the light calcium carbonate is a rosetta type.
また、上記課題を解決するための請求項４に記載の発明は、上述した白板紙のうちのいずれかから得られる、印刷物、印刷箱又は包装容器である。
Further, the invention according to claim 4 for solving the above problem is a printed matter, a printing box, or a packaging container obtained from any of the above-mentioned white paperboard.
本発明は上記のとおりであって、３層以上の複数層からなる白板紙の表層と裏層のそれぞれに、軽質炭酸カルシウム、重質炭酸カルシウム等の無機填料を対パルプで１．０～９．０％含有するように配合するため、混合されるパルプとの絡み合いが良好になり、表層と裏層の地合が改善される効果があり（パルプ１００％に近いと、パルプ同士の絡み合いが多くなり過ぎて地合が悪化する。）、また、このようにして地合が改善されることで、表層と裏層における平滑性が向上する効果がある。
The present invention is as described above, and an inorganic filler such as light calcium carbonate and heavy calcium carbonate is added to each of the front layer and the back layer of white paperboard composed of three or more layers in an amount of 1.0-9. Since it is blended so as to contain 0.0%, there is an effect that the entanglement with the mixed pulp becomes good and the formation of the surface layer and the back layer is improved (if the pulp is close to 100%, the entanglement between the pulps is It becomes too much and the formation deteriorates.) In addition, by improving the formation in this way, there is an effect of improving the smoothness in the surface layer and the back layer.
そして、更に中層にも２．０～１５．０％の無機填料を含有することで、白板紙の適度な腰及び白色度を得ることが可能となる。即ち、通常、中層にはコストダウン等の目的で、古紙パルプや工場内での循環ブローク(工場内で製造中発生した損紙相当の紙)が配合され、表層・裏層には印刷適性向上のため、バージンパルプが配合されることが多いが、中層は前記配合パルプの品質上、白色度が低くなる場合があるところ、上記のようにして表層・裏層の地合が改善されるに伴って層構成が均一となるため、中層の色を隠蔽することが可能となるのである（隠蔽効果）。
Further, by containing 2.0 to 15.0% inorganic filler in the middle layer, it is possible to obtain an appropriate waist and whiteness of white paperboard. In other words, normally, the middle layer is blended with waste paper pulp and recycled broke in the factory (paper equivalent to damaged paper generated during production in the factory) for the purpose of cost reduction, etc., and the printability is improved on the surface and back layers. Therefore, virgin pulp is often blended, but the middle layer may have low whiteness due to the quality of the blended pulp. Accordingly, the layer structure becomes uniform, so that the color of the middle layer can be concealed (the concealment effect).
また、パルプを特定の填料分に置換することにより、適度に紙の腰を向上させることができ、以て、製箱適性等の加工適性を向上させ得る効果がある。
Also, by replacing the pulp with a specific filler, it is possible to moderately improve the stiffness of the paper, and thus there is an effect that the processing suitability such as boxing suitability can be improved.
本発明に係る白板紙は、３層以上から成る多層抄きされたもので、表層と裏層のそれぞれにパルプ繊維に対して１．０～９．０％の無機填料を含有するように配合し、中層にパルプ繊維に対して２．０～１５．０％の無機填料を含有するように配合し、表層と中層と裏層を抄き合わせて製造される。
The white paperboard according to the present invention is a multi-layered paper made up of three or more layers, and is blended so that each of the front layer and the back layer contains 1.0 to 9.0% inorganic filler with respect to the pulp fiber. Then, the intermediate layer is blended so as to contain 2.0 to 15.0% of an inorganic filler with respect to the pulp fiber, and the surface layer, the intermediate layer and the back layer are made by combining.
本発明の填料としては、軽質炭酸カルシウム、重質炭酸カルシウム、クレー、焼成カオリン、デラミカオリン、ホワイトカーボン、炭酸マグネシウム、炭酸バリウム、二酸化チタン、酸化亜鉛、酸化珪素、非晶質シリカ、炭酸カルシウム／シリカ複合体、水酸化アルミニウム、水酸化カルシウム、水酸化マグネシウム、水酸化亜鉛及びセピオライトなどの無機填料のうちの１種が用いられ、あるいは、それらのうちの複数種が組み合わせて用いられる。また、古紙を再生する工程や紙を製造する工程で発生したスラッジを焼却して得られる再生填料を用いることもできる。
Fillers of the present invention include light calcium carbonate, heavy calcium carbonate, clay, calcined kaolin, deramikaolin, white carbon, magnesium carbonate, barium carbonate, titanium dioxide, zinc oxide, silicon oxide, amorphous silica, calcium carbonate / One of inorganic fillers such as silica composite, aluminum hydroxide, calcium hydroxide, magnesium hydroxide, zinc hydroxide and sepiolite is used, or a plurality of them are used in combination. In addition, a recycled filler obtained by incinerating sludge generated in a process of recycling used paper or a process of manufacturing paper can also be used.
本発明の填料としては、とりわけ軽質炭酸カルシウムが推奨される。軽質炭酸カルシウムの結晶形態はカルサイト、アラゴナイトのいずれでもよく、形状についても、針状、柱状、紡錘状、球状、立方体状、ロゼッタ型のいずれでもよい。中でも特に、ロゼッタ型のカルサイト系の軽質炭酸カルシウムが好ましい。ロゼッタ型とは、紡錘状の軽質炭酸カルシウム一次粒子がいがくり状に凝集した形状を指し、高い比表面積と吸油性を示す特徴がある。炭酸カルシウムの平均粒子径は、０．１～２０μｍ程度であり、好ましくは０．５～１０μｍであり、より好ましくは１～５μｍである。
と り わ け Light calcium carbonate is recommended as the filler of the present invention. The crystal form of light calcium carbonate may be either calcite or aragonite, and the shape may be any of acicular, columnar, spindle, spherical, cubic, and rosetta types. Of these, Rosetta-type calcite light calcium carbonate is particularly preferable. The rosetta type refers to a shape in which spindle-shaped light calcium carbonate primary particles are aggregated in a corrugated shape, and is characterized by a high specific surface area and oil absorption. The average particle diameter of calcium carbonate is about 0.1 to 20 μm, preferably 0.5 to 10 μm, more preferably 1 to 5 μm.
白板紙の原紙は２層以上の多層抄きマシンで抄造され、使用するパルプは表層と裏層には印刷適性を考慮して晒パルプや未晒パルプの木材パルプや機械パルプを配合する。これらのパルプの填料分は０．５％程度となるので、歩留を考慮して表層と裏層のそれぞれの無機填料分の含有率が１．０～９．０％になるように填料を配合する。例えば、表層と裏層については、填料の少ない晒パルプに対してフレッシュな無機填料を添加することにより、１．０～９．０％含有するようにする。
White paperboard paper is made with a multi-layer machine with two or more layers, and the pulp used is blended with bleached or unbleached wood pulp and mechanical pulp in consideration of printability. The filler content of these pulps is about 0.5%. Therefore, considering the yield, the filler should be adjusted so that the content of each inorganic filler in the front and back layers is 1.0 to 9.0%. Blend. For example, the surface layer and the back layer are made to contain 1.0 to 9.0% by adding a fresh inorganic filler to the bleached pulp with less filler.
表下層を含む中層には、コストダウンを目的として前記パルプの他に雑誌古紙、段ボール古紙等の古紙パルプや工場内で発生した損紙相当の循環ブロークが配合される。前記晒パルプの填料分が約０．５％であること、古紙パルプの填料分が１０％以上（古紙の種類、集荷によりバラツキあり）、循環ブローク中の填料分が２．０～２０．０％（一般に循環ブロークには填料塗工損紙若しくは無塗工原紙、若しくはそれらの混合等が含まれるが、一工場内における循環ブローク中の填料は本願記載の填料と同種のものとなる。）であること及び歩留を考慮し、中層に、無機填料分の含有率が２．０～１５．０％になるように配合を行う。例えば、中層については、填料分の多い循環ブロークにフレッシュな無機填料を添加するために、表層及び裏層よりも無機填料分の含有率が高くなる。
In the middle layer including the front and lower layers, in addition to the above pulp, recycled paper pulp such as used magazine paper and used cardboard, and circulating broke equivalent to damaged paper generated in the factory are blended for the purpose of cost reduction. The bleached pulp has a filler content of about 0.5%, the waste paper pulp has a filler content of 10% or more (varies depending on the type of used paper and collection), and the filler content in the circulating broke is 2.0-20.0. % (Generally, the circulation broke includes filler-coated waste paper, uncoated base paper, or a mixture thereof, but the filler in the circulation broke in one factory is the same as the filler described in this application.) In consideration of the above and the yield, the middle layer is blended so that the content of the inorganic filler is 2.0 to 15.0%. For example, in the middle layer, since a fresh inorganic filler is added to a circulating broke having a large amount of filler, the content of the inorganic filler is higher than that of the front layer and the back layer.
白板紙の原紙を多層抄きマシンで抄造した後、通常の塗工装置（カーテンコーター、ブレードコーター、エアナイフコーター他）で、通常のカラー配合（軽質炭酸カルシウム、重質炭酸カルシウム、クレー、プラスチックピグメント他の混合液）を、片面若しくは両面にシングル塗工（１回塗工）若しくはダブル塗工（２回塗工）により、塗工量２０～４０ｇ／ｍ２の範囲で塗工して、坪量１６０ｇ／ｍ２～４２０ｇ／ｍ２程度の白板紙を製造する。
After making white paperboard with a multi-layer machine, use normal coating equipment (curtain coater, blade coater, air knife coater, etc.) and use normal color composition (light calcium carbonate, heavy calcium carbonate, clay, plastic pigment) The other liquid mixture) is applied to one or both sides by single coating (single coating) or double coating (twice coating) in a coating amount range of 20 to 40 g / m 2. White paperboard with an amount of 160 g / m 2 to 420 g / m 2 is manufactured.
本願発明に係る白板紙の原紙は、長網、円網、ウルトラフォーマー等の多層抄合わせマシンで抄造された後、必要に応じて片面または両面に無機顔料を含む塗料が塗工される。
The base paper of the white paperboard according to the present invention is made by a multi-layered assembling machine such as a long net, a circular net, or an ultraformer, and then coated with a paint containing an inorganic pigment on one side or both sides as necessary.
［実施例］
以下、実施例に基づいて本発明について更に説明するが、本発明はそれらの実施例に限定されるものではないことは言うまでもない。以下に示す実施例１～７（表１）及び比較例１～１２（表２）は、いずれも３層抄きのものである。なお、配合を示す数値は、固形分の重量基準の数値である。 [Example]
EXAMPLES Hereinafter, although this invention is further demonstrated based on an Example, it cannot be overemphasized that this invention is not limited to those Examples. Examples 1 to 7 (Table 1) and Comparative Examples 1 to 12 (Table 2) shown below are all made of three layers. In addition, the numerical value which shows a mixing | blending is a numerical value based on the weight of solid content.
以下、実施例に基づいて本発明について更に説明するが、本発明はそれらの実施例に限定されるものではないことは言うまでもない。以下に示す実施例１～７（表１）及び比較例１～１２（表２）は、いずれも３層抄きのものである。なお、配合を示す数値は、固形分の重量基準の数値である。 [Example]
EXAMPLES Hereinafter, although this invention is further demonstrated based on an Example, it cannot be overemphasized that this invention is not limited to those Examples. Examples 1 to 7 (Table 1) and Comparative Examples 1 to 12 (Table 2) shown below are all made of three layers. In addition, the numerical value which shows a mixing | blending is a numerical value based on the weight of solid content.
＜評価・試験方法＞
坪量： ＪＩＳ Ｐ ８１２４
厚さ・密度： ＪＩＳ Ｐ ８１１８
地合： 紙の表面に斜めから光をあて、目視で表面の繊維の均一性と紙面のボコツキ状況を確認する。（◎、○が合格、△、×は不合格）
剛度： ＪＩＳ Ｐ ８１４３（１５．０～２０．０が適）
平滑度： ＪＩＳ Ｐ ８１５５ＩＳＯ（表裏面共に７５０以上が適）
白色度： ＪＩＳ Ｐ ８１４８（表裏面共８０．５～８４．５が適）
層内剥離強度： ＪＡＰＡＮ ＴＡＰＰＩ
Ｎｏ．１９－２ Ｂ法に準ずる。
（５６以上が適） <Evaluation and test methods>
Basis weight: JIS P 8124
Thickness and density: JIS P 8118
Formation: Light is applied obliquely to the surface of the paper, and the uniformity of the fibers on the surface and the unevenness of the paper surface are confirmed visually. (◎, ○ pass, △, × fail)
Stiffness: JIS P 8143 (15.0-20.0 is suitable)
Smoothness: JIS P 8155 ISO (750 and above are suitable for both front and back)
Whiteness: JIS P 8148 (80.5-84.5 is suitable for both front and back)
In-layer peel strength: JAPAN TAPPI
No. 19-2 Same as B method.
(56 or more is appropriate)
坪量： ＪＩＳ Ｐ ８１２４
厚さ・密度： ＪＩＳ Ｐ ８１１８
地合： 紙の表面に斜めから光をあて、目視で表面の繊維の均一性と紙面のボコツキ状況を確認する。（◎、○が合格、△、×は不合格）
剛度： ＪＩＳ Ｐ ８１４３（１５．０～２０．０が適）
平滑度： ＪＩＳ Ｐ ８１５５ＩＳＯ（表裏面共に７５０以上が適）
白色度： ＪＩＳ Ｐ ８１４８（表裏面共８０．５～８４．５が適）
層内剥離強度： ＪＡＰＡＮ ＴＡＰＰＩ
Ｎｏ．１９－２ Ｂ法に準ずる。
（５６以上が適） <Evaluation and test methods>
Basis weight: JIS P 8124
Thickness and density: JIS P 8118
Formation: Light is applied obliquely to the surface of the paper, and the uniformity of the fibers on the surface and the unevenness of the paper surface are confirmed visually. (◎, ○ pass, △, × fail)
Stiffness: JIS P 8143 (15.0-20.0 is suitable)
Smoothness: JIS P 8155 ISO (750 and above are suitable for both front and back)
Whiteness: JIS P 8148 (80.5-84.5 is suitable for both front and back)
In-layer peel strength: JAPAN TAPPI
No. 19-2 Same as B method.
(56 or more is appropriate)
＜実施例１～７＞
表層及び裏層における無機填料分の含有率を１．０～９．０％の範囲内で種々変更し、中層の無機填料分の含有率が２．０～１５．０％になるように配合し、白板紙の原紙を前記抄造方法によって３層抄きで抄造した後、前記カラーをダブル塗工で両面に、合計で２０ｇ／ｍ２になるように塗工して製造した白板紙を、実施例1～７とした。中層には、工場内で発生する同種の損紙ブローク（填料分１０％程度）を５０％配合した。 <Examples 1 to 7>
Various contents of the inorganic filler content in the surface layer and back layer are changed within the range of 1.0 to 9.0%, so that the content of the inorganic filler content in the middle layer is 2.0 to 15.0%. Then, after white paperboard base paper was made by three-layer papermaking by the papermaking method, the whiteboard paper produced by coating the color on both sides with double coating to a total of 20 g / m 2 , Examples 1 to 7 were used. In the middle layer, 50% of the same type of broken paper broke (filler content: about 10%) generated in the factory was blended.
表層及び裏層における無機填料分の含有率を１．０～９．０％の範囲内で種々変更し、中層の無機填料分の含有率が２．０～１５．０％になるように配合し、白板紙の原紙を前記抄造方法によって３層抄きで抄造した後、前記カラーをダブル塗工で両面に、合計で２０ｇ／ｍ２になるように塗工して製造した白板紙を、実施例1～７とした。中層には、工場内で発生する同種の損紙ブローク（填料分１０％程度）を５０％配合した。 <Examples 1 to 7>
Various contents of the inorganic filler content in the surface layer and back layer are changed within the range of 1.0 to 9.0%, so that the content of the inorganic filler content in the middle layer is 2.0 to 15.0%. Then, after white paperboard base paper was made by three-layer papermaking by the papermaking method, the whiteboard paper produced by coating the color on both sides with double coating to a total of 20 g / m 2 , Examples 1 to 7 were used. In the middle layer, 50% of the same type of broken paper broke (filler content: about 10%) generated in the factory was blended.
＜比較例１～１１＞
表層と裏層における無機填料分の含有率が１．０～９．０％の範囲を外れるように種々変更して配合し、また、中層の無機填料分の含有率が２．０～１５．０％の範囲を外れるように配合した以外は、実施例と同じように抄造・塗工して製造した白板紙を、比較例１～１１とした。 <Comparative Examples 1 to 11>
The content of the inorganic filler in the surface layer and the back layer is variously changed so as to be out of the range of 1.0 to 9.0%, and the content of the inorganic filler in the middle layer is 2.0 to 15. Comparative Examples 1 to 11 were white paperboards produced by papermaking and coating in the same manner as in the Examples except that they were blended out of the range of 0%.
表層と裏層における無機填料分の含有率が１．０～９．０％の範囲を外れるように種々変更して配合し、また、中層の無機填料分の含有率が２．０～１５．０％の範囲を外れるように配合した以外は、実施例と同じように抄造・塗工して製造した白板紙を、比較例１～１１とした。 <Comparative Examples 1 to 11>
The content of the inorganic filler in the surface layer and the back layer is variously changed so as to be out of the range of 1.0 to 9.0%, and the content of the inorganic filler in the middle layer is 2.0 to 15. Comparative Examples 1 to 11 were white paperboards produced by papermaking and coating in the same manner as in the Examples except that they were blended out of the range of 0%.
＜比較例１２＞
中層に損紙ブロークを配合しないこと以外は、実施例１と同様にして製造した白板紙を比較例１２とした。 <Comparative Example 12>
A white paperboard produced in the same manner as in Example 1 except that no broke broke was added to the middle layer was used as Comparative Example 12.
中層に損紙ブロークを配合しないこと以外は、実施例１と同様にして製造した白板紙を比較例１２とした。 <Comparative Example 12>
A white paperboard produced in the same manner as in Example 1 except that no broke broke was added to the middle layer was used as Comparative Example 12.
＜表１＞
<Table 1>
＜表２＞
<Table 2>
表１における結果から明らかなように、本願発明における要件をすべて満たす実施例１～７の場合は、地合、平滑度が良好で、剛度及び白色度も適性値であった。一方、表２における結果から明らかなように、表層と裏層のいずれか若しくは両方の無機填料分の含有率が１．０％に満たない比較例１～４、７～１１においては、表面若しくは裏面のパルプ分の量が増えすぎて表裏面の地合が悪化しているだけでなく、剛度も下がり傾向になった。剛度が下がると、後の箱加工適性に悪影響を及ぼす（白板紙を箱に成形した場合に罫線入れに悪影響を及ぼす）。
As is clear from the results in Table 1, in Examples 1 to 7 that satisfy all the requirements of the present invention, the formation and smoothness were good, and the stiffness and whiteness were also appropriate values. On the other hand, as is clear from the results in Table 2, in Comparative Examples 1 to 4 and 7 to 11 in which the content of the inorganic filler in either or both of the surface layer and the back layer is less than 1.0%, the surface or Not only the amount of pulp on the back side increased too much, but the formation of the front and back sides deteriorated, but the stiffness also tended to decrease. If the stiffness is lowered, it adversely affects the suitability for subsequent box processing (when white paperboard is formed into a box, it adversely affects ruled lines).
また、表層と裏層のいずれか若しくは両方の無機填料分の含有率が９．０％を超える比較例５、７～９の場合には、無機填料分が増え過ぎて、逆に白板紙の剛度が下がった。更に、白色度も所望の数値よりオーバーした。中層の無機填料分の含有率が２．０～１５．０％の範囲を超える比較例５、６、８においては、中層の層内剥離強度が弱くなり、箱加工適性が悪化した。また、比較例５、６、８の場合は、剛度が下がった。中層の無機填料分の含有率が２．０％に満たない比較例１２の場合は、中層のパルプ分の割合が多くなり過ぎて中層の地合が悪化し、表層と裏層の地合が悪化した。
In the case of Comparative Examples 5 and 7 to 9 in which the content of the inorganic filler in either or both of the front layer and the back layer exceeds 9.0%, the amount of the inorganic filler is excessively increased. Stiffness has decreased. Furthermore, the whiteness exceeded the desired value. In Comparative Examples 5, 6, and 8 in which the content of the inorganic filler in the middle layer exceeded the range of 2.0 to 15.0%, the in-layer peel strength of the middle layer became weak and the box processing suitability deteriorated. In Comparative Examples 5, 6, and 8, the stiffness decreased. In the case of Comparative Example 12 in which the content of the inorganic filler in the middle layer is less than 2.0%, the proportion of the pulp in the middle layer is excessively increased, the formation of the middle layer is deteriorated, and the formation of the surface layer and the back layer is It got worse.
以上の結果から、表層と裏層における無機填料分の含有率がそれぞれ１．０～９．０％の範囲内に設定され、中層の無機填料分の含有率が２．０～１５．０％の範囲内に設定されて製造される本願発明に係る白板紙が、地合、平滑度、剛度及び白色度のいずれの点においても有効であることを確認することができた。そして、この本発明に係る白板紙を用いて製造した包装用箱は、見た目が良く、適度な剛度を備えたものとなる。
From the above results, the content of the inorganic filler in the front layer and the back layer is set in the range of 1.0 to 9.0%, and the content of the inorganic filler in the middle layer is 2.0 to 15.0%. It was confirmed that the white paperboard according to the present invention set and manufactured within this range is effective in all aspects of formation, smoothness, rigidity and whiteness. The packaging box manufactured using the white paperboard according to the present invention has a good appearance and has an appropriate rigidity.
本発明につき、ある程度詳細にその最も好ましい実施形態について説明してきたが、この発明の精神と範囲に反することなしに、広範に異なる実施形態を構成することができることは明白である。従って、この発明は、添付請求の範囲において限定した以外はその特定の実施形態に制約されるものではない。
Although the present invention has been described in some detail with its most preferred embodiments, it will be apparent that a wide variety of different embodiments can be constructed without departing from the spirit and scope of the invention. Accordingly, the invention is not limited to that particular embodiment, except as limited in the appended claims.
Claims (4)
- ３層以上から成る多層抄きされた白板紙において、表層と裏層のそれぞれにパルプ繊維に対して１．０～９．０％の無機填料を含有するように配合し、中層にパルプ繊維に対して２．０～１５．０％の無機填料を含有するように配合し、表層と中層と裏層を抄き合わせて成る白板紙。 In white paperboard made of multiple layers consisting of 3 or more layers, each surface layer and back layer are blended so as to contain 1.0 to 9.0% inorganic filler with respect to pulp fibers, and the middle layer is made of pulp fibers. White paperboard, which is formulated so as to contain 2.0 to 15.0% inorganic filler, and the surface layer, middle layer and back layer are combined.
- 前記無機填料は、軽質炭酸カルシウム、重質炭酸カルシウム、クレー、タルクのうちの１種又は複数種の組み合わせである、請求項１に記載の白板紙。 The white paperboard according to claim 1, wherein the inorganic filler is one or a combination of light calcium carbonate, heavy calcium carbonate, clay and talc.
- 前記軽質炭酸カルシウムは、ロゼッタ型である、請求項２に記載の白板紙。 The white paperboard according to claim 2, wherein the light calcium carbonate is a rosetta type.
- 請求項１乃至３のいずれかに記載の白板紙から得られる、印刷物、印刷箱又は包装容器。 A printed matter, a printing box, or a packaging container obtained from the white paperboard according to any one of claims 1 to 3.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014506058A JP6189287B2 (en) | 2012-03-22 | 2013-01-23 | White paperboard and printed matter, printing box or packaging container using it |
| CN201380015889.4A CN104334798A (en) | 2012-03-22 | 2013-01-23 | White paper board, and printed matter, printed box or packaging container each produced using same |
| AU2013236640A AU2013236640B2 (en) | 2012-03-22 | 2013-01-23 | White paper board, and printed matter, printed box or packaging container each produced using same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012064889 | 2012-03-22 | ||
| JP2012-064889 | 2012-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013140844A1 true WO2013140844A1 (en) | 2013-09-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2013/051268 WO2013140844A1 (en) | 2012-03-22 | 2013-01-23 | White paper board, and printed matter, printed box or packaging container each produced using same |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6189287B2 (en) |
| CN (1) | CN104334798A (en) |
| AU (1) | AU2013236640B2 (en) |
| WO (1) | WO2013140844A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014019975A (en) * | 2012-07-18 | 2014-02-03 | Hokuetsu Kishu Paper Co Ltd | White paperboard |
| JP2017002433A (en) * | 2015-06-11 | 2017-01-05 | 王子ホールディングス株式会社 | Paper base material |
| WO2019065270A1 (en) * | 2017-09-27 | 2019-04-04 | 日本製紙株式会社 | Multilayer sheet, and method for producing same |
| JP7528853B2 (en) | 2021-04-19 | 2024-08-06 | 王子ホールディングス株式会社 | White paperboard |
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| JP4514658B2 (en) * | 2005-06-30 | 2010-07-28 | 日本製紙株式会社 | Information recording paper |
| JP4347840B2 (en) * | 2005-09-28 | 2009-10-21 | 日本製紙株式会社 | Inkjet recording paper |
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| CN103476991A (en) * | 2011-07-26 | 2013-12-25 | 日本制纸株式会社 | Coated white paperboard and manufacturing method thereof |
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- 2013-01-23 WO PCT/JP2013/051268 patent/WO2013140844A1/en active Application Filing
- 2013-01-23 CN CN201380015889.4A patent/CN104334798A/en active Pending
- 2013-01-23 JP JP2014506058A patent/JP6189287B2/en active Active
- 2013-01-23 AU AU2013236640A patent/AU2013236640B2/en not_active Ceased
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| JP2005256234A (en) * | 2004-03-12 | 2005-09-22 | Hokuetsu Paper Mills Ltd | Base paper for liquid container |
| JP2006097138A (en) * | 2004-09-28 | 2006-04-13 | Nippon Paper Industries Co Ltd | Coated paper for printing |
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| JP2008163507A (en) * | 2006-12-28 | 2008-07-17 | Daio Paper Corp | Mat mount and mat board |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014019975A (en) * | 2012-07-18 | 2014-02-03 | Hokuetsu Kishu Paper Co Ltd | White paperboard |
| JP2017002433A (en) * | 2015-06-11 | 2017-01-05 | 王子ホールディングス株式会社 | Paper base material |
| WO2019065270A1 (en) * | 2017-09-27 | 2019-04-04 | 日本製紙株式会社 | Multilayer sheet, and method for producing same |
| JPWO2019065270A1 (en) * | 2017-09-27 | 2020-10-22 | 日本製紙株式会社 | Multi-layer sheet and its manufacturing method |
| JP7166263B2 (en) | 2017-09-27 | 2022-11-07 | 日本製紙株式会社 | Multilayer sheet and manufacturing method thereof |
| JP7528853B2 (en) | 2021-04-19 | 2024-08-06 | 王子ホールディングス株式会社 | White paperboard |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2013236640A1 (en) | 2014-10-02 |
| CN104334798A (en) | 2015-02-04 |
| JP6189287B2 (en) | 2017-08-30 |
| AU2013236640B2 (en) | 2017-04-13 |
| JPWO2013140844A1 (en) | 2015-08-03 |
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