CN103074803B - Print with unglazed coating paper - Google Patents
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- CN103074803B CN103074803B CN201210414996.1A CN201210414996A CN103074803B CN 103074803 B CN103074803 B CN 103074803B CN 201210414996 A CN201210414996 A CN 201210414996A CN 103074803 B CN103074803 B CN 103074803B
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Abstract
It is an object of the invention to provide and unapproachable in a kind of prior art do well in terms of ink setting, picking speed, coating adaptability, whiteness, and the improved printing of ink stain is with unglazed coating paper.By the printing that there is on body paper at least one of which coating with pigment and binding agent as main component and constituted with on unglazed coating paper, in the pigment of 100 mass % comprised in most surface coating, containing calcium carbonate more than 75 mass %, precipitated calcium carbonate containing the aciculiform of 5～60 mass % or/and cylindricality in this calcium carbonate, and the particle diameter D of 50 volume % of the size distribution curve obtained by laser diffractometry of this precipitated calcium carbonate50It is 0.3～2.5 μm.
Description
Technical field
The present invention relates to the unglazed coating paper of a kind of printing.
Background technology
Unglazed coating paper, is the gloss by reducing blank sheet of paper paper wittingly, give readability,
And coordinate the coating paper of impression having the degree of depth, due to its feature, be widely used in fine arts printing,
The aspects such as goods catalogue, pamphlet, calendar year calendar, poster.
Unglazed coating paper, generally reduces blank sheet of paper glossiness by two kinds of methods.One is, former
On paper, coating is mixed with than the granules of pigments used on the coating paper of thick type (high glaze type)
The coating of thicker pigment, directly obtains product, or applies slight calendering (calender)
The method processed and obtain product.Another kind is, uses the stack of rough surface, by roller table
The rough surface grain pattern in units of micron in face, is transferred to by the most coated pigment
The method of coating surface.
Unglazed coating paper, owing to being prepared by described manufacture method, has irregular surface, because of
This is in printing process, bookbinding operation, carrying operation, and printing and blank sheet of paper part contact,
There is easily generation printing-ink when friction and transfer to the qualitative defect on blank sheet of paper (below
It is referred to as ink stain) such distinctive problem.Particularly, when the pigment of coating of most surface
In containing a large amount of calcium carbonate time, ink stain has change significantly tendency, therefore, also has and do not use
Calcium carbonate, and using the big Kaolin of particle diameter as the situation of the main component of pigment (such as, specially
Profit document 1).But, the kaolinic content more than one in pigment, the mobility of coating is deteriorated, and when being coated by Scraper applicator, has and often occurs to scratch and the risk of streak.Further,
Kaolinic content more than one, has and is difficult to obtain higher whiteness, and cause ink setting to drop
Low risk.Therefore, practical situation is, is using Kaolin as unglazed coating paper energetically
Pigment this respect there is a problem, use particularly coating adaptability on be better than kaolinic
Calcium carbonate is the most as the situation of the main component of pigment.
As using the calcium carbonate prior art as the pigment in coating, such as patent energetically
In document 2, just propose by average oil absorption be the aciculiform of more than 40ml/100g, cylindricality,
Or the scheme that fusiform calcium carbonate uses as pigment, but, when the grain of calcium carbonate granule
When footpath is big, it is possible to produce ink stain, when particle size distribution is uneven, there is generation printing table
The risk that face intensity reduces.
In patent documentation 3, it is proposed that below scheme, in the pigment of 100 weight %, contain
Have more than 70 weight % by major axis particle diameter be below 4.0 μm, short axle particle diameter be 1.0 μm with
Under the calcium carbonate that is mixed to get with ground calcium carbonate of spindle precipitated calcium carbonate, and mix carbon
More than 40 weight % in acid calcium it is spindle precipitated calcium carbonate.But, if lightweight carbonic acid
The grain shape of calcium is spindle, and coating is difficult to form porous state, it may not be possible to obtain relatively
In ink setting and ink stain, the second best in quality unglazed coating paper.
In patent documentation 4, it is proposed that below scheme, relative to the pigment of 100 weight portions,
The cohesion of the secondary particle shape that mean diameter is more than 1.3 μm containing 50～90 weight portions
Property precipitated calcium carbonate and the ground calcium carbonate that mean diameter is more than 2.0 μm, and this lightweight carbon
Acid calcium is 1:1～1:8 with the mixed proportion of this ground calcium carbonate.But, if using coherency
Precipitated calcium carbonate, adhesion strength weakens thus picking speed reduces, and the water conservation of coating
Property be easily reduced, when being coated by Scraper applicator, need prepare high concentration coating,
The risk that coating adaptability reduces may be brought.
In patent documentation 5, it is proposed that below scheme, entering according to sulfate process or sodium method
In the causticization operation of the pulping process of row, after quick lime digests in water or weak liquid,
In pigment coated, relative to the pigment composition of 100 weight %, containing 30～90 weight %
Manufactured the aciculiform or the precipitated calcium carbonate of cylindricality obtained by causticization reaction in green liquor.But
It is that the uniformity of the particle size distribution of the precipitated calcium carbonate obtained by this method is the highest, Ke Nenghan
There is the precipitated calcium carbonate of the uncertain shape that can produce ink stain.Further, precipitated calcium carbonate is worked as
Major axis particle diameter more than 3.0～during 5.0 μm, when being coated by Scraper applicator, have and send out
Raw scuffing and the risk of streak.
As it has been described above, relate to the prior art of unglazed coating paper, contain can not meet unglazed
Coating paper pursue ink stain, ink setting, picking speed, coating adaptability,
The probability that at least one in whiteness requires.
[prior art literature]
[patent documentation]
[patent documentation 1] JP 2007-239106 publication
[patent documentation 2] JP 2002-105888 publication
[patent documentation 3] Unexamined Patent 6-73695 publication
[patent documentation 4] Unexamined Patent 8-27694 publication
[patent documentation 5] speciallys permit flat 11-81191 publication
Summary of the invention
It is an object of the invention to provide in a kind of prior art unapproachable ink setting,
Printing surface is slight, coating adaptability, whiteness aspect do well, and ink stain
Etc. in feature, improved printing is with unglazed coating paper.
The present inventor etc., are carried out with the pigment of the coating on unglazed coating paper in printing using
The result repeatedly studied, finds to use containing specific shape and the lightweight of particle diameter in pigment
Calcium carbonate is important technology essential factor.
The present invention includes following composition.
(1) a kind of printing is with unglazed coating paper, it is characterized in that, by have on body paper to
Few one layer of coating with pigment and binding agent as main component and the unglazed coating of printing that constituted
On paper, in the pigment of 100 mass % comprised in most surface coating, more than 75 mass %
Calcium carbonate, light containing the aciculiform of 5～60 mass % or/and cylindricality in this calcium carbonate
Matter calcium carbonate, and the particle size distribution song obtained by laser diffractometry of this precipitated calcium carbonate
Particle diameter (the D of 50 volume % of line50) it is 0.3～2.5 μm；
(2) according to printing described in (1) with unglazed coating paper, it is characterized in that, described gently
Matter calcium carbonate, the particle diameter (D of 50 volume % of size distribution curve50) it is 0.4～2.0 μm,
And the particle diameter (D of 90 volume %90) and the particle diameter (D of 10 volume %10) ratio (embroidered shoes D90/D10)
It is less than 8；
(3) according to the printing described in any one of (1) or (2) with unglazed coating paper, it is characterized in that,
Body paper has the two-layer coating with pigment and binding agent as main component thus is constituted printing
With unglazed coating paper, in this printing with on unglazed coating paper, the pigment comprised in primer coating
In containing ground calcium carbonate, the granularity obtained by laser diffractometry of this ground calcium carbonate is divided
Particle diameter (the D of 50 volume % of cloth curve50) it is 0.5～2.0 μm, and this printing is with unglazed
The whiteness of coating paper is more than 89%.
(4) according to the printing described in any one of (1)～(3) with unglazed coating paper, it is characterized in that,
Described precipitated calcium carbonate, is to be less than 20% disappear with the cumulative volume that particle diameter is below 1.0 μm
Lime particle obtains as raw material manufacture；
(5) according to the printing described in any one of (1)～(4) with unglazed coating paper, it is characterized in that,
Described precipitated calcium carbonate, through operation A, B and C manufacture obtain, operation A be relative to
The mol ratio of quick lime is scope interior interpolation digestion (slaking) water of less than 2.5, by mixed
Conjunction obtains slaked lime；Process B is by being mixed with water by this slaked lime, obtains Sal Nitri mortar；
Operation C is to be passed through the gas containing carbon dioxide in this Sal Nitri mortar to carry out carbonating.
By means of the invention it is possible to obtain fitting in ink setting, picking speed, coating
Ying Xing, whiteness aspect are all outstanding, and ink stain situation improved printing nothing
Light coating paper.
Detailed description of the invention
(coating)
Printing in the present invention with unglazed coating paper, coating (or coating) be with pigment and
Binding agent is main component, adds other various adjuvant further according to needs.Furthermore, coating
Can be one layer, it is also possible to be more than two-layer, and can only be coated with on the one side of body paper,
Can also be coated with on two-sided.
(pigment)
(precipitated calcium carbonate)
The precipitated calcium carbonate used in the present invention, is characterized in that having aciculiform or/and cylindricality
Shape, the size distribution curve of the described precipitated calcium carbonate obtained by laser diffractometry
Particle diameter (the D of 50 volume %50) it is 0.3～2.5 μm.
The shape of precipitated calcium carbonate has aciculiform, cylindricality, cube, a spindle etc., but this
The precipitated calcium carbonate of bright middle use requires as aciculiform or/and cylindricality.Its reason is, it is considered to
To the shape speciality of aciculiform or/and cylindricality, coating surface and coating are not easy produce
Align the situation of irregular (Orientation irregularity), and easy in coating
There is suitable space, therefore, in terms of ink setting and ink stain, there is advantage especially.
The D of the precipitated calcium carbonate used in the present invention50Be 0.3～2.5 μm, preferably 0.4～
2.0 μm, more preferably 0.5～1.5 μm.Work as D50During discontented 0.3 μm, blank sheet of paper glossiness uprises,
Likely damage the characteristic as unglazed coating paper, and owing to bonding strength reduces, may
Bring the risk that picking speed reduces.Work as D50During more than 2.5 μm, the effect of improvement ink stain may be made to be deteriorated, and have the risk that whiteness reduces.
The D of the precipitated calcium carbonate used in the present invention90/D10For preferably less than 8, more preferably 6 with
Under, further preferred less than 5.Work as D90/D10During more than 8, particle size distribution is uneven, may
Granule containing the uncertain shape that can produce ink stain.
In the precipitated calcium carbonate used in the present invention, major axis particle diameter is the granule of more than 3.0 μm
The ratio of quantity be preferably less than 20%, more preferably less than 15%, further preferred 10%
Below.When the ratio of quantity of the granule that major axis particle diameter is more than 3.0 μm is more than 20%, logical
Crossing Scraper applicator when being coated, thick precipitated calcium carbonate granule is heaped in scraper front end,
Generation is had to scratch and the risk of streak.Further, owing to there is thick granule, there is generation oil
The risk of ink stain.
The precipitated calcium carbonate used in the present invention, it is necessary to be included in most surface coating.Its reason
By being, print with the ink setting of unglazed coating paper, picking speed, whiteness,
Ink stain is mainly determined by the coating of most surface.Furthermore, use in the present invention is light
Matter calcium carbonate, it is not necessary to the layer beyond the coating of most surface need to be included in (hereinafter referred to as bottom
Coating) in.
In most surface coating, in the pigment of 100 mass % contained in the coating, containing 75
Precipitated calcium carbonate more than quality %, and this calcium carbonate must comprise in the present invention and specify
The precipitated calcium carbonate of 5～60 mass %.In the pigment of 100 mass % contained in the coating,
When the content of precipitated calcium carbonate is discontented with 75 mass %, picking speed may be brought to reduce
The risk reduced with whiteness.When in the calcium carbonate contained in the pigment of the coating of most surface,
When in the present invention contained, the mass ratio of the precipitated calcium carbonate of regulation is discontented with 5 mass %, ink
The improvement effect of stain is inadequate, and, when more than 60 mass %, blank sheet of paper gloss uprises,
Likely damage the characteristic as unglazed coating paper.Furthermore, the basis contained in so-called calcium carbonate
The ratio of the precipitated calcium carbonate of regulation in invention, the meaning specifies relative to by the present invention
100 of calcium carbonate composition beyond the precipitated calcium carbonate specified in precipitated calcium carbonate and the present invention
The mixed calcium carbonate of quality %, the mass ratio shared by precipitated calcium carbonate of regulation in the present invention.
The method obtaining precipitated calcium carbonate is not particularly limited, but preferably by dispersion, powder
Broken, the operation simple and easy method of classification, is passed through carbonic acid gas (carbon dioxide) in slaked lime
Make " liquid-gas method " that it reacts.Particularly with through operation A, B, C manufacture obtain for
The precipitated calcium carbonate of feature, is readily available desired grain shape, particle diameter, particle size distribution.
Operation A is to add digestion water in relative to the scope that mol ratio is less than 2.5 of quick lime
(for the water of digestion), by being mixed to get slaked lime；Process B is by by this Sal Nitri
Ash mixes with water, obtains Sal Nitri mortar；Operation C is to be passed through containing two in this Sal Nitri mortar
The gas of carbonoxide carries out carbonating.
Below described operation A, B, C are described in detail respectively.
Quick lime can be the limestone after calcining, about calciner, is not particularly limited,
The double thorax kiln (Maerz furnace) of Beckenbach sleeve kiln (Beckenbach kiln), wheat Wurz,
Rotary kiln (Rotary kiln), KHD stove (Kahardy), shaft furnace, カ Le マ チ ッ
Network stove (Karma chick, calmatic), fluidized bed furnace (fluidized bed furnace,
Fluidizing-bed furnace), baking mixed stove (Oven baked mixture stand)
In the device converting limestone.Calcining heat and calcination time can suitably adjust, but
It is that ratio is by high temperature also by low temperature and calcined limestone is made for a long time quick lime
And the quick lime that calcined limestone is made in short time, it is easier to obtain the lightweight carbonic acid of aciculiform
Calcium.It addition, when the carbon dioxide content ratio in quick lime is low, it is easier to obtain aciculiform
Precipitated calcium carbonate, as the calcining residual component of limestone, preferably according to JISR
The carbon dioxide that in 9011:2006, brium carbonate (barium) back titration of regulation obtains contains
Ratio is less than 1.5%, and more preferably carbon dioxide content ratio is less than 1.0%.Due to lightweight
Calcium carbonate is to use as paint pigment, therefore uses the Calx masonry that whiteness is high as far as possible
Relatively good for raw material.Particularly, the coloring components of Fe, Mn etc. is likely to occur problem, therefore
Should be noted that the use poor limestone of coloring components as far as possible.
As the manufacture method of slaked lime, it is preferably used in quick lime i.e. calcium oxide interpolation reason
The water of about 2 times of opinion aquation amount, carries out the dry state digestion method digested.In dry state digests,
The water yield of the digestion water added, the mol ratio preferably with respect to quick lime is less than 2.5.When disappearing
When changing the water yield mol ratio to quick lime more than 2.5, during owing to adding digestion water in quick lime,
Water forms localization, therefore generates the slaked lime of a large amount of subparticle, the lightweight carbonic acid obtained
Calcium be shaped as spindle, when being coated on paper, the aspect such as smoothness, gloss display property
Quality reduces.
As it has been described above, when the subparticle that the hydrated lime particle as raw material contains is too much, system
The quality of the precipitated calcium carbonate become reduces.For this present inventor etc., measured by laser diffractometry
Obtain the volume particle size distribution of hydrated lime particle.When the particle diameter of volume particle size distribution is 1.0 μm
When the cumulative volume of following fine hydrated lime particle is more than 20%, use as raw material
Time will generate fusiform precipitated calcium carbonate.In the precipitated calcium carbonate of this product, mixing
Thick granule, owing to particle diameter is uneven, when thus be accordingly used in coating pigment, quality is severe.
Therefore, particle diameter is that the cumulative volume of fine hydrated lime particle of below 1.0 μm is preferably 20%
Below.Particle diameter is that the cumulative volume of the hydrated lime particle of below 1.0 μm is more preferably less than 15%,
More preferably less than 10%.It addition, by the particle size distribution sharpening hydrated lime particle, make
Obtain carbonation reaction uniform, it is possible to the particle diameter making precipitated calcium carbonate is more uniform.
The slaked lime of few uniform particle sizes, mixing quick lime and water it is mixed in order to generate subparticle
Mixing arrangement, preferably having can be three-dimensional with suspension diffusion effect by mixture or reactant
Ground flowing, stirring structure.Specifically, the blender using mixing container self to rotate is elected
And the blender that container is little with the gap of agitator arm.Use such blender, during stirring not
Can produce dead angle, owing to mixture flows always, when adding digestion water in quick lime, water is not
Localization can be formed, be possible to prevent the slaked lime generated to flock together, it is possible to obtain fine
Grain and the hydrated lime particle of the most less uniform particle sizes of big particle.When the floating in mixing arrangement
When diffusion effect reduces, when adding digestion water in quick lime, water is likely to be formed localization, because of
This fine hydrated lime particle generated is more, the precipitated calcium carbonate obtained be shaped as spindle,
When being coated on paper, it may appear that the feelings that the quality of the aspects such as smoothness, gloss display property reduces
Condition.
In order to improve suspension diffusion effect, by agitator arm be rotated in mixing arrangement in mix time, the circumferential speed that this agitator arm rotates requires as more than 0.5m/s, preferably this stirring
The circumferential speed that impeller rotates is more than 0.8m/s, further preferred more than 1.5m/s.It addition,
When mixing in being rotated in mixing arrangement by container self, the circumference that this container self rotates
Rate requirement is more than 0.2m/s, and the circumferential speed that preferably this container self rotates is 0.4m/s
Above.And then, by being provided for the shearing agitator arm of dispersion mixing, it is possible to increase cut
Cut effect, thus obtain subparticle and the more uniform Sal Nitri of the most less particle diameter of big particle
Ash particle.
The mixing arrangement worked as applicable continuation mode, in order to make the reactant in mixing arrangement
It is circulated, by the diffusion agitator arm with feeding structure and return structure is preferably used,
And then by skiing type (board-like) shovel impeller (Ski type shovel), sawtooth are preferably used
The special agitator arm of shape shovel impeller etc., thus the diffusion effect that preferably suspended.Stirring
When impeller circumferential speed reaches more than 2.0m/s, quick lime can mix equably with water, it is possible to
Prevent hydrated lime particle from flocking together.It addition, mixing arrangement can not only one, it is also possible to
Use more than two.By using the mixing arrangement of more than two, thus it is possible to vary every mixing dress
The stirring circumferential speed put, the time of staying such that it is able to obtain the less more adduction of big particle
Suitable slaked lime.
When the mean size of quick lime is less than 5, add the digestion water in quick lime to
If temperature is too low, digestion reaction drastically occurs, the particle size distribution of the hydrated lime particle obtained
Wider range.During to this end, arrange classification, pulverizing process, the load for operation becomes big, flower
Take the cost on classification, disintegrating apparatus to increase.It is therefore preferable that the temperature of digestion water is 40 DEG C
Above, more preferably more than 60 DEG C.When the mean size of quick lime is more than 5, add life to
The temperature of the digestion water in Calx, is not particularly limited, it is possible to use the room temperature of about 20 DEG C
Water.
In order to make quick lime mix equably with digestion water, the interpolation import of digestion water, Ke Yishi
More than one, is preferably provided with two or more.It addition, as digestion water adding method, except
Nozzle methods, it is possible to use can be at the spray method of relative broad range internal spraying.Particularly, right
In powder quick lime and the material of digestion reaction midway, owing to spray method is prevented from digestion
The localization of water, it is advantageous to use spray method.As adding digestion water in a batch manner
Suitably method, is not disposably to add digestion water, but add the most by several times or 5～
In the time of about 30 minutes, seriality ground adds.As the conjunction adding digestion water in a continuous manner
Suitable method, be by quick lime from one end feeding of blender, mix and blend same
Time between the other end moves, the top of blender, the digestion water supply port of plural number is set, special
It not the supply port close to blender outlet, use spray method relatively good.
Quick lime and the incorporation time of digestion water, be not particularly limited, but, add ormal weight
Digestion water after, in mixing arrangement stir more than 1 minute preferably, preferably more than 3 minutes,
More preferably more than 5 minutes.If it is considered that production, preferably incorporation time are 8～15 minutes.
The slaked lime so obtained, can directly carry out carbonation reaction, but if remove thick
Bulky grain, it is possible to make carbonation reaction evenly, the particle diameter of precipitated calcium carbonate is the most uniform.
The particle diameter of hydrated lime particle is, below preferably 150 μm, below more preferably 75 μm, further
Below preferably 50 μm.
As remove thick hydrated lime particle method, elect use centrifugation formula grader,
Oscillating flat sieve, plansifter classifying equipoment etc..The thick hydrated lime particle filtered out with grader etc.,
After size-reduced machine can also be used to grind, return to the closed circulation of the stage reduction of classification operation.
Stage reduction operation, it is possible to use dry method or the either type of wet method.If slaked lime
Grain overmastication in pulverizer, the precipitated calcium carbonate obtained will form spindle, is to cause
The key factor of Quality Down, therefore must prevent.
The solids level concentration of the Sal Nitri mortar of supply carbonating, if discontented 5% mass, can make
Production efficiency reduces, if it exceeds 40% mass, can generate the precipitated calcium carbonate of subparticle,
Caking property improves, and operability is deteriorated.Therefore, the solids level concentration of Sal Nitri mortar be preferably 5～
40 mass %.The preferred lower limit of the solids level concentration of Sal Nitri mortar is 8 mass %, more excellent
The upper limit of choosing is 20 mass %.
It addition, the temperature of Sal Nitri mortar when carbonating starts, due to the lightweight carbonic acid to product
The crystal form of calcium produces impact, so needing to adjust.It is discontented with if carbonating starts temperature
20 DEG C, it is passed through carbonic acid gas (carbon dioxide) or containing carbonic acid gas (carbon dioxide)
During gas, fine needle crystals will be agglomerated together, on the other hand, if it exceeds 50 DEG C,
Aciculiform and fusiform crystallization all can mix, it is impossible to form the calcium carbonate of uniform particle sizes
Grain, it may not be possible to embody the quality of coating paper.Therefore, in order to obtain needle-shaped particles, carbonating
Start temperature and be preferably 20～50 DEG C.
Carbon dioxide or the intake of the gas containing carbon dioxide, the most especially
Limit, but from the angle of crystal form, react in the slaked lime of every 1 before starting,
Preferably with the flow of below 10L/min be passed through 100% carbon dioxide (1 air pressure, 20 DEG C change
Calculate), more preferably below 5L/min.If it exceeds 10L/min, will be formed spindle or
The calcium carbonate granule of cohesion shape, it may not be possible to embody the quality of coating paper.From the angle of production
Set out, be preferably pressed into more than 1.5L/min.
Carbonation reaction can be can also to be in a continuous manner in a batch manner, carbonating
Reactive tank can be passed through carbon dioxide.If the reactive tank of batch mode, it is considered to
To from reactive tank carbon dioxide introduced below more efficiently, it is advantageous to use cylindrical shape or
The reactive tank of the Semen Maydis cylindrical shape etc. that lower section is circular cone of person's only cylinder.And then, by half batch
(in batches) many holes, the carbon dioxide gas being passed through are beaten on the circular cone of the lower section of the reactive tank of mode
Body forms trickle bubble, and these trickle bubbles contact with Sal Nitri mortar, it is possible to make it efficient
Ground and react equably.
It addition, arrange agitating device in reactive tank, carry out carbonating by stirring
Mode so that carbon dioxide is trickleer, with Sal Nitri mortar contact more preferably, it is thus possible to
Enough react equably and efficiently.The stirring circumferential speed of agitating device, preferably 2.0m/s
Above, more preferably more than 2.5m/s.As agitating device, it is possible to use single shaft or biaxial type
Agitator tank, Ke Lesi blender (Cowles mixer), high-speed stirred formula dispersion machine
(Disperser) etc..And then, by arranging baffle plate in reactive tank such that it is able to improve and disappear
The shearing force of lime white.
Furthermore it is also possible to Sal Nitri mortar before carbonation reaction adds crystal seed.By in advance
Add the aragonitic aciculiform precipitated calcium carbonate as crystal seed, similar aciculiform can be generated efficiently
Crystallization.The adding proportion of crystal seed is, preferably calcium hydroxide and aragonitic aciculiform precipitated calcium carbonate it
Ratio is 99.7:0.3～95:5.
As the gas containing carbon dioxide of applicable carbonation reaction, can enumerate containing
The mixed gas of carbon dioxide, such as, limestone combustion gas, pulp production device
Lime calcining discharge gas, manufacture of cement kiln discharge gas, the discharge gas of electricity generation boiler,
The discharge gas etc. that rubbish destroys by fire.When described discharge gas is as the gas containing carbon dioxide
Body use time, preferably by use sack cleaner, electrostatic precipitator, dry collector,
Wet scrubber or these combination, remove the limestone in discharge gas, Calx, sulfur oxygen
The dust of compound, unburned carbon etc., thus purify discharge gas.
In order to use calcium carbonate to starch as paint pigment, need to arrange following operation: take off
Water and generate water displacement composition dehydration procedure and, in the dehydration group obtained by this dehydration procedure
In compound add moisture and generate the dispersive composition of pulpous state dispersion step and, be adjusted to be wished
The pulverizing process of the particle diameter hoped.
Dehydration procedure, it is possible to operated by filtration, centrifugation, pressurizing and dehydrating, squeezing etc.,
It is dehydrated the degree to solids level concentration 70%.As being suitably dehydrated device, there are pressure filter, band
Formula pressure filter etc..When the solid content of the dehydrated sludge cake (precipitate, Cake) after dehydration procedure is dense
When spending low, drying process can be increased and bring up to desired solids level concentration.As dry dress
Put, including rotary drier, disk dryer, pneumatic conveying dryer, fluid bed drying
Device etc..Furthermore it is also possible to the subsidiary functions/drying that use dehydration procedure is integrated with drying process
Pressure filter.
Furthermore, for making precipitated calcium carbonate reach the particle diameter that the scope of the invention specifies, preferably in dehydration
Dispersion step and pulverizing process are set after operation, but the mean diameter after dispersion processes exists
Time in the range of desired mean diameter, it is not necessary to pulverize, directly as coating pigment
Use.
As the manufacture method of slaked lime, in addition to dry state digestion method, it is possible to use in a large number
Exceed and digest under the water yield of theoretical aquation amount, thus obtain the hygrometric state of the state of Sal Nitri mortar
Digestion method.The hydrated lime particle obtained by hygrometric state digestion method manufacture, owing to particle diameter is 1.0 μm
Following subparticle is more, and mixes thick granule, therefore, in order to obtain the present invention
Precipitated calcium carbonate granule, need to remove thick hydrated lime particle and fine hydrated lime particle.
As the method removing thick hydrated lime particle, elect and use oscillating flat sieve, plansifter to divide
Level equipment etc. is purged.Penetrate oscillating flat sieve etc. comprises disappearing of fine hydrated lime particle
Lime white, it is possible to use centrifugal separation equipment, whirlwind type classifying equipoment etc., remove fine disappearing
Lime particle.
(may pigment)
As the pigment used in the present invention, in addition to the precipitated calcium carbonate of regulation in the present invention,
Can be from ground calcium carbonate, Kaolin, Talcum, silicon dioxide, satin white, Linesless charcoal, hydrogen-oxygen
Change aluminum, aluminium silicate, magnesium silicate, magnesium carbonate, titanium dioxide, plastic pigment etc. mineral-type or
In person's organic pigment, properly select one or two kinds of combination of the above and use.
As it was previously stated, in most surface coating, containing 75 mass % in the pigment of 100 mass %
Above calcium carbonate, must be containing the quality of the precipitated calcium carbonate that present invention provide that in this calcium carbonate
Ratio is 5～60 mass %, then use as with the precipitated calcium carbonate that present invention provide that simultaneously
Calcium carbonate, preferably ground calcium carbonate.Owing to ground calcium carbonate is at coating adaptability, whiteness
Aspect is outstanding, and can suppress blank sheet of paper gloss, it is therefore preferable that as being simultaneously used in table
The pigment of finishing coat uses.Furthermore, generally, if in the most surface coating of unglazed coating paper
The combined amount more than one of the calcium carbonate contained in pigment, the frictional resistance on coating paper surface becomes big, meeting
Cause being worse off of ink stain.But, use when most surface coating contains in the present invention
Precipitated calcium carbonate time, even if mixing a large amount of calcium carbonate, be also not result in the situation of ink stain
Deteriorate.It is contemplated that the existence of the precipitated calcium carbonate owing to using in the present invention, just can be formed
Porous and uniform coating.
When arranging primer coating, to using the pigment in primer coating to be not particularly limited, but
It is that ground calcium carbonate is preferably used.Owing to ground calcium carbonate is in coating adaptability, whiteness side
Face is outstanding, and will not damage owing to containing the lightweight carbon used in the present invention in most surface coating
Acid calcium and the various invention effects that obtain, be therefore preferably used ground calcium carbonate as using the end of at
Pigment in layer coating.Such as, if with use Kaolin as the pigment in primer coating
Situation is compared, and effect is notable, if mixing Kaolin, ink setting is damaged, and
Blank sheet of paper gloss is too high, the most also the aspect such as mobility of the drying property of wetting coating and coating
The tendency that coating adaptability deteriorates.
The ground calcium carbonate used in primer coating as pigment, is obtained by laser diffractometry
The particle diameter D of 50 volume % of size distribution curve50It is preferably 0.5～2.0 μm.Work as D50
During discontented 0.5 μm, blank sheet of paper gloss may uprise, and the caking property of coating improves simultaneously, and coating is suitable
Answering property is likely to decrease.Work as D50During more than 2.0 μm, ink setting possible deviation and flat
Slippery may reduce.
[binding agent]
As the binding agent used in the present invention, can be from Oxytarch, enzyme denaturation starch, phosphorus
The starch based such as acidified starch, the protide such as casein, soybean protein, synthetic proteins, carboxymethyl
The cellulose family such as cellulose, hydroxyethyl cellulose, compositions, the styrene-fourth such as polyvinyl alcohol
The synthetic rubber class of diene copolymers, metacrylate-butadiene copolymer etc., vinyl
The polyvinyl apoplexy due to endogenous wind such as acetates copolymer, Acryl analog copolymer, suitably select
Select one or two kinds of used above.
[auxiliary agent]
As the auxiliary agent used in the present invention, in the range of the effect not damaging the present invention, can
With the dyestuff from blue or/and purple and pigment, fluorescent dye, thickening agent, water-retaining agent,
Antioxidant, defoamer, dispersant, pH value adjusting control agent, parting compound (parting agent), anti-
In water additive, waterproofing agent etc., properly select one or two kinds of used above.
[body paper]
As the body paper used in the present invention, it is not particularly limited, use can be properly selected
The paper weight of be generally used for coated paper for printing each square metre is 30～300g/ degree
Body paper.The paper pulp raw material of body paper is also not particularly limited, can be from pulp from decoloured waste paper, machinery
Slurry, chemical pulp etc., usually used as coated paper for printing paper pulp raw material use paper pulp raw material in,
Properly select one or two kinds of used above.Spy is not had for obtaining the paper machine of body paper yet
Do not limit, can be suitably selected inverform paper machine, folder net type molding device paper machine,
The existing known paper machine such as monochromatic light paper machine.
And then, on the body paper used in the present invention, it may be necessary to carry out applying to remove coating
Surface process.When body paper applies to remove coating, as apparatus for coating, can be suitably
Select connecting rod measuring stick size press coater (Rod metering size press coater),
Gate roll coater (Gate roll coater), tilting size press coater (inclined
Size press coater) etc. existing known device.Remove coating with binding agent as main component,
As binding agent, can be from Oxytarch, enzyme denaturation starch, phosphorylated starch, cationization
The starch based such as starch, the protide such as casein, soybean protein, synthetic proteins, carboxymethyl cellulose
The cellulose families such as element, hydroxyethyl cellulose, the compositions of polyvinyl alcohol etc., styrene-fourth two
The synthetic rubber classes such as alkene copolymer, metacrylate-butadiene copolymer, vinylacetic acid
The polyvinyl apoplexy due to endogenous wind such as lipin polymer, Acryl analog copolymer, properly select one
Plant or two or more use.
It addition, the body paper used in the present invention, before coating coating, calendering can be applied in advance
Process, so that body paper surface is smoother.
[be coated with and process]
As arranging the device of coating on body paper, can from knife type coater (blade coater),
Roll coater (roll coater), air doctor blade spreader (Kohler coater, Air knife
Coater), metering bar coater (rod coater), curtain coater (curtain coater, Curtain
Coater), in the existing known apparatus for coating of flush coater (spray coater) etc. suitably
Select to use.Certainly, these apparatus for coating both can be coating (on-machine) shape on machine
Formula, it is also possible to be paper-dope spreading (off-machine) form.It addition, as being dried on body paper
The method of wetting coating, can be dried from hot air drying, vapour seasoning, gas heater,
In the existing known drying means that electric heater is dried, infrared heater is dried etc., suitably
Ground selects to use.
Furthermore, the solids level concentration of the coating being coated on body paper, to primer coating and most surface
All there is no particular limitation for coating, but, generally adjust in the range of 20～70 mass %.
It addition, to coating weight, also there is no particular limitation, but, generally, primer coating and most surface
Coating, all in terms of dry weight, adjusts respectively in the range of every one side 3～30g/ degree.
The coating paper so obtained, it may be necessary to by supercalender, soft press-polishing machine, nothing
Light calender, roughened calender etc., carry out pressurizeing and improving the process of smoothness, thus reach
To measuring the degree that blank sheet of paper glossiness is less than 50% obtained according to JIS P 8142.
[embodiment]
Embodiment will be enumerated below and explain the present invention, but the limit to the present invention can not be understood as
System.Furthermore, " % " and " portion " in embodiment and comparative example, all represent " quality % "
" mass parts ".
[embodiment 1]
(preparation of precipitated calcium carbonate)
In the container of subsidiary agitating device, inject the digestion water 9 of 70 DEG C, stir
Add the industrial quick lime (carbon dioxide (CO of 12) containing ratio is 0.3%), carry out 120
Minute digestion.The Sal Nitri mortar obtained is cooled to 40 DEG C, thus prepares the Sal Nitri of 12%
Mortar 10.Then, add as crystal seed aciculiform precipitated calcium carbonate (trade name: TP 123CS,
Ao Duomo industrial group manufactures), adding proportion is to convert with solid content, and slaked lime is light with aciculiform
The ratio of matter calcium carbonate is 99:1.Under the speed that circumferential speed is 5.0m/s of stirring, with 10
The flow of L/min is passed through carbon dioxide (gas concentration is 100%), and carbonating is extremely
PH=7～8, thus obtain precipitated calcium carbonate.
Described precipitated calcium carbonate slurry by roller pressure-filteration drying machine (roll fit filter press dryer,
Manufactured by the group ironworker of pool, Co., Ltd.'s space open country) carry out being dehydrated, drying operation, obtain solid content dense
Degree is the mud cake (precipitate, Cake) of 73%.Then, add relative to precipitated calcium carbonate
The sodium polyacrylate that adding proportion is 1.0% (sodium polyacrylate) dispersant (business
The name of an article: aronT-50, East Asia Synesis Company manufacture), (vertical being permitted is liked by Japan to use intensive mixer
(eirich) Co., Ltd. manufactures) disperse, preparing solids level concentration is 70% be coated with
Precipitated calcium carbonate is starched.
(making of body paper)
By LBKP(leaves bleached kraft pulp, leaf wood bleached kraft pulp)
In the paper pulp 100% constituted, add precipitated calcium carbonate (trade name: TamaPearl as filler
TP-121-6S, Ao Duomo industrial group manufactures), reach after the ash in paper is 15%,
Relative to whole solid contents of paper pulp, add sulphate of iron 0.5%, cationic starch (business successively
The name of an article: Ace K100, prince corn starch company manufacture) 0.5%, alkyl ketene dimer executes
Colloid (trade name: Size Pine K-287, Huang Chuan chemical company manufactures) 0.1%, cation
Type polyacrylamide (manufacture of trade name: REALISER R-300, Suo Malong (somar) company)
0.1%, prepare paper raw material.These paper raw materials, copy speed for 1200m/ by operating
The folder net type molding device of min forms ply of paper, is filled by the squeezing containing 2 Shoe press
After putting dehydration, it is dried by multi-barrel drying machine further, then, is made by roll coater
Carry out at size press with starch (trade name: Ace A, prince corn starch company manufacture)
Reason, with reach the every one side of body paper solid content as 0.5g/, subsequently by containing a nip
Machine calender (machine Calender) is smoothed, thus obtains 90g/'s
Body paper.
(preparation of subbing)
It is being 1.3 μm, D by mean diameter95Particle diameter is that the ground calcium carbonate of 4.5 μm is constituted
In graining paste 100 parts, add Oxytarch (trade name: Ace B, the same) 4 parts, benzene second
Alkene-butadiene copolymer latex (trade name: OJ3000H, JSR company manufactures) 6 parts is (all
Convert with solid content), then, add the defoamer as auxiliary agent, finally prepare solid content
Concentration is the subbing of 62%.
(preparation of surface coating material)
25 parts, fine grained Kaolin (trade name: Milagros is being starched by described precipitated calcium carbonate
J, BASF (BASF) company manufacture) 25 parts, mean diameter be the ground calcium carbonate of 1.1 μm
(trade name: FMT90, Fei Maiteke (FIMATEC) company manufactures) 50 parts of face constituted
In slip, add Oxytarch (trade name: Ace B, the same) 2 parts, styrene-fourth two
9 parts of alkene copolymer latex (trade name: OJ3000H, JSR company manufactures) is (all admittedly to contain
Amount conversion), fluorescent dye 0.13 part (converts with fixedness component), then, adds and makees
For defoamer and the dyestuff of auxiliary agent, finally prepare the surface coating material that solids level concentration is 63%.
(making of coating paper)
On the body paper obtained under these conditions, by with fountain spray regime (Fountain jet
System)) supply coating knife type coater, with the coating speed of 1300m/min, two-sided
Be coated with above-mentioned under the conditions of obtain subbing, be dried, reach the dry weight of every one side
For 9g/, thus primer coating is set.Then, in primer coating, by spraying with fountain
The mode of penetrating supplies the knife type coater of coating, with the coating speed of 1300m/min, two-sided painting
Cloth surface coating material, being dried, the dry weight reaching every one side is 10g/, thus sets
Put face coat (being equivalent to most surface coating).The coating paper that will so obtain, passes through temperature
The metallic roll being heated to 100 DEG C is inclined multinip calender with resin roll, presses online
Under conditions of 200kN/m, paper feeding speed 1000m/min, make coating paper one side and metallic roll
Contact respectively once with resin roll, i.e. carry out the paper feeding of two nips altogether, thus often put down
The coating paper that paper weight is 128g/ of side's rice.
[embodiment 2]
In example 2, except the bead of use a diameter of 1.0～1.4 is as crushing medium,
The precipitated calcium carbonate slurry that will be obtained by embodiment 1, carries out the wet method of 20 minutes with sand mill
Pulverization process, prepares and is coated with, beyond precipitated calcium carbonate slurry, obtaining nothing similarly to Example 1
Light coating paper.
[embodiment 3]
In embodiment 3, in addition to the precipitated calcium carbonate in embodiment 1 being starched and makes following change,
Obtain unglazed coating paper similarly to Example 1.
(preparation of precipitated calcium carbonate)
The digestion water 12.6 of 60 DEG C, stirring is injected in the container of subsidiary agitating device
While adding the industrial quick lime (carbon dioxide (CO of 12) containing ratio is 0.3%), enter
The row digestion of 120 minutes.The slaked lime obtained is divided with the plansifter of 330 fineness (45 μm)
After Ji, use centrifugal separating device, isolate the Sal Nitri mortar of subparticle and big particle.
The Sal Nitri mortar of isolated big particle is cooled to 40 DEG C, prepares the Sal Nitri mortar of 12%
10㎏.Then, Sal Nitri mortar adds the aciculiform precipitated calcium carbonate (commodity as crystal seed
Name: TP 123CS, Ao Duomo industrial group manufactures), adding proportion be with solid content conversion, disappears
Calx is 99:1 with the ratio of aciculiform precipitated calcium carbonate.The speed that circumferential speed is 5.0m/s in stirring
Under degree, it is passed through carbon dioxide (gas concentration is for 100%), carbon with the flow of 8L/min
It is acidified to pH=7～8, thus obtains precipitated calcium carbonate.
Described precipitated calcium carbonate is starched by roller pressure-filteration drying machine (roll fit filter press dryer)
Carry out being dehydrated, drying operation, obtain the mud cake (precipitate, Cake) that solids level concentration is 73%.
Then, the sodium polyacrylate that adding proportion is 1.0% relative to precipitated calcium carbonate is added
(sodium polyacrylate) dispersant (trade name: aronT-50, the same), uses strong
Power mixer disperses, and prepares precipitated calcium carbonate slurry.Then, use a diameter of 1.0～
Described precipitated calcium carbonate, as crushing medium, is starched by the bead of 1.4, carries out with sand mill
The waterproof pulverization of 60 minutes processes, and prepares the pigment evaluation that solids level concentration is 70% and uses light
Matter calcium carbonate is starched.
[embodiment 4]
In example 4, in addition to the precipitated calcium carbonate in embodiment 1 being starched and makes following change,
Obtain unglazed coating paper similarly to Example 1.
(preparation of precipitated calcium carbonate)
As mixing arrangement, use and take down chopping impeller, all change the continuous side of shovel impeller into
The colter mixer (Ploughshare Mixer) of the WA150 type of formula, from mixing arrangement
One end, puts into industrial quick lime (carbon dioxide (CO with the input amount of 4/min2) contain
Rate is 0.3%), stop 8 minutes, until discharging slaked lime from the other end, at these 8 minutes
Time in, under the speed that shovel impeller circumferential speed is 3.0m/s, by nozzle mode,
With the flow of 2.58/min from two local digestion water adding 30 DEG C.The slaked lime obtained
After cut point 35 μm classification, mix the water of 35 DEG C, prepare the Sal Nitri mortar of 10% concentration
10㎏.Under the speed that stirring circumferential speed is 5.0m/s, it is passed through with the flow of 12L/min
Carbon dioxide/air gas mixture (gas concentration is 20%), carbonating to pH=7～8,
Thus obtain precipitated calcium carbonate slurry.
Described precipitated calcium carbonate is starched by roller pressure-filteration drying machine (roll fit filter press dryer)
Carry out being dehydrated, drying operation, obtain the mud cake (precipitate, Cake) that solids level concentration is 73%.
Then, the sodium polyacrylate that adding proportion is 1.0% relative to precipitated calcium carbonate is added
(sodium polyacrylate) dispersant (trade name: aronT-50, the same), use strong
Power mixer disperses, and prepares precipitated calcium carbonate slurry.Then, use a diameter of 1.0～
Described precipitated calcium carbonate, as crushing medium, is starched by the bead of 1.4, carries out with sand mill
The waterproof pulverization of 60 minutes processes, and prepares the pigment evaluation that solids level concentration is 70% and uses light
Matter calcium carbonate is starched.
[embodiment 5]
In embodiment 5, in addition to the surface coating material in embodiment 4 is made following change, with
Embodiment 4 is similarly obtained unglazed coating paper.
(preparation of surface coating material)
By the weight that 30 parts of precipitated calcium carbonate slurry in embodiment 4, mean diameter are 1.1 μm
In 70 parts of graining pastes constituted of matter calcium carbonate (trade name: FMT90, the same), add oxidation
Starch (trade name: Ace B, the same) 2 parts, SB latex (business
The name of an article: OJ3000H, the same) 9 parts (all converting with solid content), fluorescent dye 0.13 part
(converting with fixedness component), then, adds the defoamer as auxiliary agent and dyestuff,
Prepare the surface coating material that solids level concentration is 63% eventually.
[embodiment 6]
In embodiment 6, in addition to the subbing in embodiment 5 is made following change, with
Embodiment 5 is similarly obtained unglazed coating paper.
(preparation of subbing)
In the graining paste being made up of the ground calcium carbonate that mean diameter is 0.4 μm 100 parts, add
Add Oxytarch (trade name: Ace B, the same) 4 parts, SB glue
Breast (trade name: OJ3000H, the same) 6 parts (all converts with solid content), then, adds
Add the defoamer as auxiliary agent, finally prepare the subbing that solids level concentration is 62%.
[embodiment 7]
In embodiment 7, in addition to the subbing in embodiment 5 is made following change, with
Embodiment 5 is similarly obtained unglazed coating paper.
(preparation of subbing)
In the graining paste being made up of the ground calcium carbonate that mean diameter is 2.2 μm 100 parts, add
Add Oxytarch (trade name: Ace B, the same) 4 parts, SB glue
Breast (trade name: OJ3000H, the same) 6 parts (all converts with solid content), then, adds
Add the defoamer as auxiliary agent, finally prepare the subbing that solids level concentration is 62%.
[comparative example 1]
In comparative example 1, in addition to the precipitated calcium carbonate in embodiment 5 being starched and makes following change,
Obtain unglazed coating paper similarly to Example 5.
(preparation of precipitated calcium carbonate)
In the container of subsidiary agitating device, inject the digestion water 9 of 60 DEG C, stir
Add the industrial quick lime (carbon dioxide containing ratio is 0.3%) of 1, carry out 120 points
The digestion of clock.The Sal Nitri mortar obtained is cooled to 50 DEG C, prepares the slaked lime of 12% concentration
Slurry 10.Then, Sal Nitri mortar adds the aciculiform precipitated calcium carbonate (business as crystal seed
The name of an article: TP 123CS, Ao Duomo industrial group manufactures), adding proportion be with solid content conversion,
Slaked lime is 99:1 with the ratio of aciculiform precipitated calcium carbonate.It is the speed of 5.0m/s at stirring circumferential speed
Under degree, it is passed through carbon dioxide (gas concentration is for 100%) with the flow of 20L/min,
Carbonating is to pH=7～8, thus obtains precipitated calcium carbonate.
Described precipitated calcium carbonate is starched by roller pressure-filteration drying machine (roll fit filter press dryer)
Carry out being dehydrated, drying operation, obtain the mud cake (precipitate, Cake) that solids level concentration is 73%.
Then, the sodium polyacrylate that adding proportion is 1.0% relative to precipitated calcium carbonate is added
(sodium polyacrylate) dispersant (trade name: aronT-50, the same), uses strong
Power mixer disperses, and prepares the precipitated calcium carbonate that is coated with that solids level concentration is 70% and starches.
[comparative example 2]
In comparative example 2, in addition to the surface coating material in embodiment 5 is made following change, with
Embodiment 5 is similarly obtained unglazed coating paper.
(preparation of surface coating material)
By in embodiment 4 precipitated calcium carbonate starch 25 parts, fine grained Kaolin (trade name:
Milagros J, the same) 30 parts, mean diameter be 1.1 μm ground calcium carbonate (trade name:
FMT90, the same) in 45 parts of graining pastes constituted, add Oxytarch (trade name: Ace
B, the same) 2 parts, SB latex (trade name: OJ3000H, JSR
Company manufactures) 9 parts (all converting with solid content), fluorescent dye 0.13 part is (with fixedness
Component converts), then, add the defoamer as auxiliary agent and dyestuff, finally prepare and admittedly contain
Amount concentration is the surface coating material of 63%.
[comparative example 3]
In comparative example 3, in addition to the surface coating material in embodiment 5 is made following change, with
Embodiment 5 is similarly obtained unglazed coating paper.
(preparation of surface coating material)
Starched in 100 parts of graining pastes constituted by the precipitated calcium carbonate in embodiment 4, adding oxygen
Change starch (trade name: Ace B, the same) 2 parts, SB latex (business
The name of an article: OJ3000H, JSR company manufactures) 9 parts (all converting with solid content), fluorescence contaminates
Expect 0.13 part (with fixedness component convert), then, add as auxiliary agent defoamer and
Dyestuff, finally prepares the surface coating material that solids level concentration is 63%.
[comparative example 4]
In comparative example 4, except the precipitated calcium carbonate in the surface coating material in comparative example 1 is changed
For spindle precipitated calcium carbonate (trade name: TP-121-7C, Ao Duomo industrial group manufacture) with
Outward, unglazed coating paper it is similarly obtained with comparative example 1.
[comparative example 5]
In comparative example 5, except the precipitated calcium carbonate in the surface coating material in comparative example 1 is changed
For cube precipitated calcium carbonate (trade name: Brilliant S 15, Ao Duomo industrial group manufacture)
In addition, unglazed coating paper it is similarly obtained with comparative example 1.
[embodiment 8]
(making of body paper)
By LBKP(leaves bleached kraft pulp, leaf wood bleached kraft pulp)
In the paper pulp 100% constituted, add precipitated calcium carbonate (trade name: the TamaPearl as filler
TP-121-6S, the same), reach after the ash in paper is 15%, complete relative to paper pulp
Portion's solid content, successively add sulphate of iron 0.5%, cationic starch (trade name: Ace K100,
Ditto) 0.5%, alkyl ketene dimer sizing agent (trade name: Size Pine K-287, with
Before) 0.1%, cationic-type polyacrylamide (trade name: REALISER R-300, the same)
0.1%, prepare paper raw material.These paper raw materials, copy speed for 1200m/min in operating
Speed under by folder net type molding device formed ply of paper, by containing 2 Shoe press
After pressing device dehydration, it is dried with multi-barrel drying machine, then, is used by roll coater
Starch (trade name: Ace A, the same) carries out size press-treated, often single to reach body paper
The solid content in face is 0.5g/, subsequently by the paper machine press polish containing a nip
Machine (machine Calender) machine is smoothed, thus obtains the body paper of 50g/.
(preparation of coating)
By in embodiment 1 precipitated calcium carbonate starch 45 parts, fine grained Kaolin (trade name:
Milagros J, the same) 25 parts, mean diameter be 1.1 μm ground calcium carbonate (trade name:
FMT90, the same) in 30 parts of graining pastes constituted, add Oxytarch (trade name: Ace
B, the same) 2 parts, SB latex (trade name: OJ3000H, with
Before) 9 parts (all converting with solid content), fluorescent dye 0.25 part (changes with fixedness component
Calculate), then, add the defoamer as auxiliary agent and dyestuff, finally prepare solids level concentration
It is the coating of 63%.
(making of coating paper)
On the body paper obtained under these conditions, by with fountain spray regime (Fountain jet
System)) supply coating knife type coater, with the coating speed of 1300m/min, two-sided
Be coated with above-mentioned under the conditions of the coating that obtains, be dried, the dry weight reaching every one side is 10g
/, thus coating layer (being equivalent to most surface coating layer) is set.The coating paper so obtained,
Being heated to the metallic roll of 100 DEG C by temperature is inclined multinip calender with resin roll,
Under conditions of pressing 200kN/m, paper feeding speed 1000m/min online, make coating paper one side with
Metallic roll contacts once respectively with resin roll, i.e. carries out the paper feeding of two nips altogether, thus obtains
To the coating paper that the paper weight of every square metre is 70g/.
[embodiment 9]
In embodiment 9, change into embodiment 2 except being starched by the precipitated calcium carbonate in embodiment 8
In precipitated calcium carbonate slurry beyond, obtain unglazed coating paper similarly to Example 8.
[embodiment 10]
In embodiment 10, change into embodiment 3 except being starched by the precipitated calcium carbonate in embodiment 8
In precipitated calcium carbonate slurry beyond, obtain unglazed coating paper similarly to Example 8.
[embodiment 11]
In embodiment 11, change into embodiment 4 except being starched by the precipitated calcium carbonate in embodiment 8
In precipitated calcium carbonate slurry beyond, obtain unglazed coating paper similarly to Example 8.
[embodiment 12]
In embodiment 12, in addition to the coating in embodiment 8 is changed into following coating,
Obtain unglazed coating paper similarly to Example 8.
(preparation of coating)
By the weight that 50 parts of precipitated calcium carbonate slurry in embodiment 4, mean diameter are 1.1 μm
In 50 parts of graining pastes constituted of matter calcium carbonate (trade name: FMT90, the same), add oxidation
Starch (trade name: Ace B, the same) 2 parts, SB latex (business
The name of an article: OJ3000H, the same) 9 parts (all converting with solid content), fluorescent dye 0.25 part
(converting with fixedness component), then, adds the defoamer as auxiliary agent and dyestuff,
Prepare the coating that solids level concentration is 63% eventually.
[comparative example 6]
In comparative example 6, change into comparative example 1 except being starched by the precipitated calcium carbonate in embodiment 12
In precipitated calcium carbonate slurry beyond, obtain unglazed coating paper similarly to Example 12.
[comparative example 7]
In comparative example 7, in addition to the coating in embodiment 12 is changed into following coating,
Obtain unglazed coating paper similarly to Example 12.
(preparation of coating)
By in embodiment 4 precipitated calcium carbonate starch 50 parts, fine grained Kaolin (trade name:
Milagros J, the same) 30 parts, mean diameter be 1.1 μm ground calcium carbonate (trade name:
FMT90, the same) in 20 parts of graining pastes constituted, add Oxytarch (trade name: Ace
B, the same) 2 parts, SB latex (trade name: OJ3000H, with
Before) 9 parts (all converting with solid content), fluorescent dye 0.25 part (changes with fixedness component
Calculate), then, add the defoamer as auxiliary agent and dyestuff, finally prepare solids level concentration
It is the coating of 63%.
[comparative example 8]
In comparative example 8, except the pigment in the coating in comparative example 7 is changed into embodiment 4
In precipitated calcium carbonate 100 parts beyond, be similarly obtained unglazed coating paper with comparative example 7.
[comparative example 9]
In comparative example 9, light except the precipitated calcium carbonate slurry in comparative example 6 is changed into spindle
Beyond matter calcium carbonate (trade name: TP-121-7C, the same), it is similarly obtained nothing with comparative example 6
Light coating paper.
[comparative example 10]
In comparative example 10, change into cube except being starched by the precipitated calcium carbonate in comparative example 6
Beyond precipitated calcium carbonate (trade name: Brilliant S 15, the same), as comparative example 6
To unglazed coating paper.
To the coating paper obtained by embodiment, comparative example, carry out following evaluation, its result
Display is in table 1 and table 2.
(particle size determination)
Surveyed by laser diffractometry (Ji Zhuan company manufactures Particle Size Analyzer HRAX-100)
Measure particle size distribution.Cumulative volume is equal to the particle diameter of 10%, 50%, 90% be expressed as
D10、D50、D90。
(blank sheet of paper glossiness)
According to JIS P8142, measure and obtain the glossiness that paper angle is blank sheet of paper face when 75 degree.
(whiteness)
According to JIS P8148(2001), use spectrum whiteness measuring instrument SC-10WT
(manufacture of Sugatest machines corporation) is measured and is obtained.
(ink stain)
By RI printer (manufactured by bright making), use the printing-ink (commodity of 0.6
Name: FUSION-G ink, S type, Di Aisheng (DIC Graphics) company manufacture) print,
After 3 hours, with the duplication paper (blank sheet of paper) not printed, rub printed article surface, range estimation
Evaluate the situation of the stain of duplication paper.
◎: can't see ink stain, well.
: can see minimum ink stain, but actually used no problem degree.
△: have ink stain, actually used unacceptable degree.
×: it is clearly visible ink stain, of poor quality.
(ink setting)
By RI printer, use 0.6 printing-ink (trade name: FUSION-G ink,
S type, described previously) print, after 3 minutes, blank sheet of paper is overlapped on printing surface, then
Secondary being imprinted by RI printer, visual assessment is transferred to the printing ink concentration on blank sheet of paper.
◎: not having ink to be transferred on blank sheet of paper, ink setting is good.
: can see that few ink is transferred on blank sheet of paper, but actually used no problem
Degree.
△: have ink to be transferred on blank sheet of paper, actually used unacceptable degree.
×: there is a lot of ink to be transferred on blank sheet of paper, of poor quality.
(picking speed)
By RI printing testing machine (manufactured by bright making), use the printing-ink of 0.6ml
(trade name: paper test oil ink SD50 is red, Toyo Ink company manufactures) prints,
The degree falling hair (plucking) of visual assessment printing surface.
◎: entirely without falling hair, well.
Although: fall hair, but actually used on the degree allowed.
△: fall hair, actually used unacceptable degree.
×: fall hair has generation more, of poor quality.
[table 1]
[table 2]
Obtained by table 1 and table 2, employ the precipitated calcium carbonate reality as pigment of the present invention
Execute the printing of example 1～12 with unglazed coating paper, at coating, printing quality, printing operation
Aspect is outstanding.
Claims (7)
1. printing is with a unglazed coating paper, it is characterized in that, by having at least one on body paper
The layer coating with pigment and binding agent as main component and the printing that constituted with on unglazed coating paper,
In the pigment of 100 mass % comprised in most surface coating, containing carbonic acid more than 75 mass %
Calcium, lightweight carbonic acid containing the aciculiform of 5～60 mass % or/and cylindricality in this calcium carbonate
Calcium, and the 50 of the size distribution curve obtained by laser diffractometry of this precipitated calcium carbonate
The particle diameter D of volume %50It is 0.3～2.5 μm.
The most according to claim 1 printing with unglazed coating paper, it is characterized in that, described gently
Matter calcium carbonate, the particle diameter D of 50 volume % of size distribution curve50It is 0.4～2.0 μm, and
The particle diameter D of 90 volume %90Particle diameter D with 10 volume %10Ratio D90/D10It is less than 8.
3. according to printing unglazed coating paper, its feature described in any one of claim 1 or 2
Be, by having at least one of which coating with pigment and binding agent as main component on body paper and
The printing constituted is with on unglazed coating paper, containing heavy carbonic acid in the pigment comprised in primer coating
Calcium, 50 volume % of the size distribution curve obtained by laser diffractometry of this ground calcium carbonate
Particle diameter D50It is 0.5～2.0 μm, and this printing is 89% with the whiteness of unglazed coating paper
Above.
The most according to claim 3 printing with unglazed coating paper, it is characterized in that, described gently
Matter calcium carbonate, be with particle diameter 1.0 μm below the hydrated lime particle that cumulative volume is less than 20%
Obtain as raw material manufacture.
Printing the most according to claim 1 and 2, with unglazed coating paper, is characterized in that, institute
State precipitated calcium carbonate, be with particle diameter 1.0 μm below the slaked lime that cumulative volume is less than 20%
Granule obtains as raw material manufacture.
6. according to the printing according to any one of claim 1,2 or 4 with unglazed coating paper,
It is characterized in that described precipitated calcium carbonate is fabricated by through operation A, B and C, operation A
It is in relative to the scope that mol ratio is less than 2.5 of quick lime, add digestion water, by mixed
Conjunction obtains slaked lime；Process B is by being mixed with water by this slaked lime, obtains Sal Nitri mortar；
Operation C is to be passed through the gas containing carbon dioxide in this Sal Nitri mortar to carry out carbonating.
The most according to claim 3 printing with unglazed coating paper, it is characterized in that, described gently
Matter calcium carbonate, is fabricated by through operation A, B and C, and operation A is relative to quick lime
The scope that mol ratio is less than 2.5 in add digestion water, by being mixed to get slaked lime；Work
Sequence B is by being mixed with water by this slaked lime, obtains Sal Nitri mortar；Operation C is to disappear at this
Lime white is passed through the gas containing carbon dioxide and carries out carbonating.
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| JP2011234161A JP5810830B2 (en) | 2011-10-25 | 2011-10-25 | Matte coated paper for printing |
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| CN104343050B (en) * | 2013-08-05 | 2017-02-15 | 金东纸业（江苏）股份有限公司 | Water-resistant paint, water-resistant paint production process, and paper |
| CN105484099A (en) * | 2014-10-13 | 2016-04-13 | 东升新材料（山东）有限公司 | Aragonite-type light calcium composition used in paper coating, and application method thereof |
| CN106567276A (en) * | 2015-10-08 | 2017-04-19 | 日本制纸巴比利亚股份有限公司 | Roll paper for smoking articles |
| CN107059487A (en) * | 2017-03-22 | 2017-08-18 | 山东东宇鸿翔装饰材料有限公司 | The preparation method of 30 grams of facing papers |
| CN109306637A (en) * | 2017-07-26 | 2019-02-05 | 中轻特种纤维材料有限公司 | The manufacturing technology of high efficiency vacuum cleaner dust collecting sleeve paper |
| JP7102122B2 (en) * | 2017-10-18 | 2022-07-19 | 三菱製紙株式会社 | Coated paper for printing |
| CN112681004A (en) * | 2020-12-30 | 2021-04-20 | 天能电池(芜湖)有限公司 | Novel super-permeability coated paper |
| CN115491783B (en) * | 2021-07-12 | 2023-11-28 | 江苏青昀新材料有限公司 | High-strength flash-spun textile and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327436A (en) * | 1999-10-26 | 2001-12-19 | 矢桥工业株式会社 | Calcium carbonate, and method for producing the same |
| CN1789552A (en) * | 2005-12-12 | 2006-06-21 | 金东纸业(江苏)有限公司 | High-whiteness coated paper and its production method |
| CN101210398A (en) * | 2007-12-24 | 2008-07-02 | 上海东升新材料有限公司 | Dope used as primary coat, floating coat and top coat of non-surface-slurry coating paper |
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| JP2000136496A (en) * | 1998-10-28 | 2000-05-16 | Nippon Paper Industries Co Ltd | Production of coated paper for printing |
| JP2005139012A (en) * | 2003-11-04 | 2005-06-02 | Yahashi Kogyo Kk | Method for producing acicular calcium carbonate |
| JP5114729B2 (en) * | 2005-12-15 | 2013-01-09 | 王子ホールディングス株式会社 | Calcium carbonate particles and news paper for cold offset printing |
| JP4485563B2 (en) * | 2007-11-05 | 2010-06-23 | 大王製紙株式会社 | Coated paper |
| JP2011122289A (en) * | 2009-06-02 | 2011-06-23 | Oji Paper Co Ltd | Offset printing paper for cold setting |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327436A (en) * | 1999-10-26 | 2001-12-19 | 矢桥工业株式会社 | Calcium carbonate, and method for producing the same |
| CN1789552A (en) * | 2005-12-12 | 2006-06-21 | 金东纸业(江苏)有限公司 | High-whiteness coated paper and its production method |
| CN101210398A (en) * | 2007-12-24 | 2008-07-02 | 上海东升新材料有限公司 | Dope used as primary coat, floating coat and top coat of non-surface-slurry coating paper |
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| JP5810830B2 (en) | 2015-11-11 |
| JP2013091868A (en) | 2013-05-16 |
| CN103074803A (en) | 2013-05-01 |
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