CN1869332B - Coating paper for printing and method of manufacturing same - Google Patents
Coating paper for printing and method of manufacturing same Download PDFInfo
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- CN1869332B CN1869332B CN2006100850444A CN200610085044A CN1869332B CN 1869332 B CN1869332 B CN 1869332B CN 2006100850444 A CN2006100850444 A CN 2006100850444A CN 200610085044 A CN200610085044 A CN 200610085044A CN 1869332 B CN1869332 B CN 1869332B
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Abstract
This invention provides a printing coating paper and the method for making same. Although it applies a film transporting method that is hard to achieve good surface smoothness, it obtains a good white paper glossiness or surface smoothness and printing adaptability. On at least one side of the original printing coating paper coats a coating layer with pigment and adhesives as principle components, wherein the pigment is layered coalmine, of which the average particle diameter d50<SUB>1</SUB> is 2.0-3.5 mum according to the scattered light method, and d50<SUB>2 is 0.20-0.55 mum according to the sedimentation method for measuring particle size; the ratio of the above particle diameters(d50<SUB>1</SUB>/d50<SUB>2</SUB>) is 4 or bigger. Besides, in the size distribution curve according to the sedimentation method, the mass distribution of 2 mum or less particles is in 95% or above range, and the mass distribution of 0.3 mum or less is in 35-50% range, In the said pigment, the mass ratio ofthis layered coalmine is 20- 100mass%.
Description
Technical field
The present invention relates to film transfer mode coating coat, contain that specific stratiform is kaolinic, surface smoothing and the blank sheet of paper glossiness is good and all good coating paper for printing and the manufacture method thereof of printing adaptability of printing smooth etc.
Background technology
Usually, coating paper for printing can be by coating on body paper with pigment and adhesive as the coating liquid of principal component and be dried and make, coating paper for printing can be categorized as curtain coating coated paper, art printing paper, coated paper, little coated paper etc. according to the coating weight of coating liquid or the method for fine finishing of coated paper.These coated paper be owing to can carry out polychrome printing or single color printing in the above, therefore can be widely used in commercial publication with printed article or books, magazine etc. such as flyer, brochure publication, postcard.In recent years, along with the visualization of printed article, the progress of colorize, requirement to the high quality of coating paper for printing improves day by day, and the quality such as outward appearance of the printing fine finishining aspect of the blank sheet of paper quality of blank sheet of paper glossiness, smoothness, whiteness etc. and printing smooth etc. are more and more paid attention to.
Particularly use in the printed matter in commerce, people consider that from the purpose as mass media it is accurately machined superior in quality to require can to reach printing with low price such as flyer, brochure publication etc.Therefore, used paper is also towards slimming and the development of lightweight aspect.
As the manufacture method of coated paper in the past, can enumerate the outer coating method of machine of copying paper and coating operation with different operations, and copy coating method on the machine of paper and coating operation simultaneously with an equipment, coating method can be produced by high efficiency more on the machine.Therefore, as the equipment that is used for production light weight coated paper, usually adopt machine coated mode, just after copying paper, use by the guide roller coating machine of film load mode work or bar type or scraper-type metallization applying glue extrusion coating machine (メ タ リ Application グ サ イ ズ プ レ ス コ one タ), the scraper-type coating machine of lacking and come production light weight coated paper by the dwell of fountain mode work.
Compare with the scraper plate mode, the film load mode can be coated with simultaneously to both side surface, and not only equipment investment is less, and require aspect the coated paper of slim, light weight of low price in manufacturing be favourable means.
Up to now, for the method that forms the pigment coat by the film load mode, people have proposed various schemes (patent documentation 1,2,3,4,5).In these patent documentations, disclose mainly that to be used to solve at coating speed be that 1100m/ divides or 1100m/ divides the method for the deadlocked phenomenon of the preformed casse that takes place when above or coating.In addition, also disclose can give play to the good glossiness that can be equal to mutually with scraper plate coating, the film of flatness transmits the coating (patent documentation 6) of coating usefulness.The feature of the document is to use low viscous starch adhesives, and the concentration that makes the pigment coating liquid becomes the high concentration more than 58% or 58%, but, because used starch adhesives is low viscous, therefore after pressing the coating of film load mode, might cause in coat that starch adhesives moves, thereby produce the uneven phenomenon of printing.
Up to now, the someone has proposed to use delaminated kaoline as being used for the pigment application layer pigment, contains the scheme (patent documentation 7～9) of the coated paper of the delaminated kaolines in particular range such as length-width ratio or particle diameter.Any scheme has all been used the bigger delaminated kaoline of particle diameter, its objective is in order to obtain to suppress the no light state of blank sheet of paper gloss or the coated paper of delustring state, and for the high coated paper of blank sheet of paper glossiness without any description.
In addition, someone has proposed a kind of scheme (patent documentation 10) of coated paper for offset printing, this coated paper obtains by a kind of coating liquid that contains 50 weight portions or the above inorganic pigment of 50 weight portions in per 100 weight portion pigment is coated on the body paper by the film transfer mode, and said inorganic pigment is pressed the ratio (laser method/sedimentation) of the pigment particle size that laser method and sedimentation measure in 3.0～10 scope.
But by discovering of present inventors, disclosed particularly kaolin obtains the occasion of the coated paper of light weight coating in the embodiment that uses at above-mentioned document, may not obtain to have the coated paper of abundant blank sheet of paper gloss.
No. 3143892 communique of (patent documentation 1) special permission
No. 2967723 communique of (patent documentation 2) special permission
No. 2910030 communique of (patent documentation 3) special permission
No. 3328554 communique of (patent documentation 4) special permission
No. 3328922 communique of (patent documentation 5) special permission
No. 2737897 communique of (patent documentation 6) special permission
(patent documentation 7) spy opens flat 11-302998 communique
(patent documentation 8) spy opens the 2002-105889 communique
(patent documentation 9) spy opens the 2002-194698 communique
(patent documentation 10) spy opens the 2005-89868 communique
Summary of the invention
All good coated paper and the manufacture method thereof of printing adaptability that the purpose of this invention is to provide a kind of blank sheet of paper glossiness that obtains by the coating liquid that contains specific delaminated kaoline with film load mode coating, surface smoothing, ink adhesion (meat), printing smooth, surface printing intensity etc.
Coating paper for printing of the present invention, it is the coat of principal component that at least one side surface of body paper is provided with pigment and adhesive, it is characterized in that, in this coating paper for printing, above-mentioned coat contains delaminated kaoline as pigment, the average grain diameter d50 that this delaminated kaoline is measured by the light scattering mode
1In the scope of 2.0～3.5 μ m, press the average grain diameter d50 that subsidence style is measured
2In the scope of 0.20～0.55 μ m, above-mentioned average grain diameter d50
1With average grain diameter d50
2Ratio (d50
1/ d50
2) be more than 4 or 4, and, in pressing the particle size distribution curve of subsidence style, the Mass Distribution of the particle that 2 μ m or 2 μ m are following is more than 95% or 95%, and, 0.3 the Mass Distribution of the particle that μ m or 0.3 μ m are following is in 35～50% scope, in the pigment in above-mentioned coat, the mass ratio of this delaminated kaoline is 20～100 quality %; Such coat can form by the coating of film load mode.In addition, in the present invention,, preferably contain the starch derivatives of 2～25 parts by mass, and then this kaolinic amount is 30～100 quality % more preferably with respect to the pigment of 100 parts by mass.
In addition, if with respect to the pigment of 100 parts by mass, the copolymer emulsion that contains 1～20 parts by mass particle diameter and be 40～150nm then can improve printing intensity as adhesive biglyyer.
And then it is the manufacture method of the present invention of coating paper for printing of the coat of principal component that at least one side surface that is used to be manufactured on body paper is provided with pigment and adhesive, it is characterized in that this method contains following operation A and B:
Operation A is the following operation that contains the dispersion liquid of delaminated kaoline as coating liquid of preparation, the average grain diameter d50 that this delaminated kaoline is measured by the light scattering mode
1In the scope of 2.0～3.5 μ m, press the average grain diameter d50 that subsidence style is measured
2In the scope of 0.20～0.55 μ m, above-mentioned average grain diameter d50
1With average grain diameter d50
2Ratio (d50
1/ d50
2) be more than 4 or 4, and, in pressing the particle size distribution curve of subsidence style, the Mass Distribution of the particle that 2 μ m or 2 μ m are following is more than 95% or 95%, and, 0.3 the Mass Distribution of the particle that μ m or 0.3 μ m are following is in 35～50% scope, in above-mentioned pigment, the shared mass ratio of this delaminated kaoline is 20～100 quality %;
Process B is the operation that is coated with the coating liquid of preparing according to above-mentioned operation A by the film load mode at least one side surface of body paper;
In the coating liquid of above-mentioned coat,, preferably contain the starch derivatives of 2～25 parts by mass with respect to the pigment of 100 parts by mass; Use level at starch derivatives is a spot of occasion, is more preferably to fit into tackifier or water retention agent.
Even said coating paper for printing is coated with according to the film load mode that is difficult to obtain the excellent surface flatness among the present invention, also can have excellent characteristic aspect the printing adaptability of surface smoothing, blank sheet of paper glossiness and printing smooth or ink adhesion etc.
The specific embodiment
The kaolin that uses among the present invention must be delaminated kaoline, and the average grain diameter d50 that measures by the light scattering mode of this delaminated kaoline
1In the scope of 2.0～3.5 μ m, press the average grain diameter d50 that subsidence style is measured
2In the scope of 0.20～0.55 μ m, above-mentioned average grain diameter d50
1With average grain diameter d50
2Ratio (d50
1/ d50
2) be more than 4 or 4, and in the particle size distribution curve of pressing subsidence style mensuration, the Mass Distribution of the particle that 2 μ m or 2 μ m are following is more than 95% or 95%, and the Mass Distribution of the particle that 0.3 μ m or 0.3 μ m are following is in 35～50% scope.Coat occasion on the body paper at the kaolin that will have such rerum natura according to the film load mode as coating, pigment can be coated on the surface of body paper equably, improve its spreadability significantly.According to the present invention, shared amount must be more than 20% or 20% in pigment for this delaminated kaoline, and then the amount of this delaminated kaoline is 30～100 quality % more preferably.When the amount of this delaminated kaoline in whole pigment during less than 20 quality %, smoothly the raising of manifesting property is abundant inadequately.
Delaminated kaoline is a kind of clay mineral that the block kaolin of layer structure can be peeled off into individual layer, and its length-width ratio is very big.
Usually, can be with each style characteristic of for example tabular particle of delaminated kaoline according to the ratio (length-width ratio: d/t) limit of its major diameter d with thickness t, but in the present invention, the granular characteristic of delaminated kaoline is according to the average grain diameter d50 that measures by the light scattering mode
1With the average grain diameter d50 that measures by subsidence style
2Limit.
At the average grain diameter d50 that carries out according to the light scattering mode
1Mensuration in, come its particle diameter of instrumentation by each particle all being regarded as spheroidal particle, different therewith, at the average grain diameter d50 that carries out according to subsidence style
2Mensuration in because the shape of particle makes a difference to settleability, the sedimentation that is shaped as flat particle is slower, comes instrumentation as the little particle of particle diameter on apparent.Therefore, can think the particle that above-mentioned length-width ratio is big more, the average grain diameter d50 that measures by the light scattering mode
1With the average grain diameter d50 that presses subsidence style mensuration
2Ratio (d50
1/ d50
2) just big more.Should illustrate, in the present invention, assay method as the average grain diameter of being undertaken by the light scattering mode, use laser diffraction formula particle size distribution device SALD-2000 (Shimadzu Seisakusho Ltd.'s system), as the assay method of the average grain diameter of being undertaken, use セ デ イ グ ラ Off 5100 (マ イ Network ロ メ リ ラ イ Network ス society systems) by subsidence style.
Explanation in passing, in the size distribution of the delaminated kaoline of pressing subsidence style mensuration, when the Mass Distribution of 2 μ m or the particle below the 2 μ m less than 95%, and the Mass Distribution of the following particle of 0.3 μ m or 0.3 μ m was less than 35% o'clock, the composition that granularity is big is too much, make the flatness of coat reduce, therefore bad, when the Mass Distribution of 0.3 μ m or the particle below the 0.3 μ m surpasses 50%, the composition that granularity is little is too much, cause using the coating liquid of this pigment exceedingly to be penetrated in the body paper, make the flatness of coat reduce, therefore also bad.
In addition, as average grain diameter d50
1With average grain diameter d50
2During respectively less than 2.0 μ m and 0.20 μ m, the delaminated kaoline in the coating fluid exceedingly is impregnated in the body paper, therefore is difficult to form the high coat of flatness.In addition, as average grain diameter d50
1With average grain diameter d50
2During respectively greater than 3.5 μ m and 0.55 μ m, be difficult to obtain to have the coated paper of enough blank sheet of paper glossiness.In addition, work as d50
1/ d50
2Less than 4 o'clock, also be difficult to obtain be the desirable coating paper for printing of the present invention.In the present invention, d50
1/ d50
2Value be preferably 5～9.5, more preferably 6～9.
In the present invention, pigment composition is made of the above-mentioned specific delaminated kaoline of 20～100 quality % and 80 quality % or other pigment below the 80 quality %.
As said other pigment, can enumerate the pigment that in common coated paper field, uses, can enumerate particularly: heavy or precipitated calcium carbonate, kaolin (still, except the above-mentioned specific delaminated kaoline), satin white, sintering kaolin, talcum, calcium sulfate, barium sulfate, aluminium hydroxide, titanium dioxide, zinc oxide, aluminium oxide, magnesium carbonate, magnesia, silica, Almasilate, calcium silicates, bentonite, zeolite, sericite, the inorganic pigment of montmorillonite etc., and compact-type, hollow type, connect the plastic pigment of pass, the organic pigment of bonding agent pigment (バ イ Application ダ one ピ グ メ Application ト) etc., can from above-mentioned pigment, select one or more uses according to the quality of required coated paper.
In order to make the surface strength that produces coated paper of the present invention, can use water-soluble binder or water-dispersible adhesive.As water-soluble binder, except starch derivatives, can also use the protein-based of casein, soybean protein, synthetic proteins etc.; The cellulose derivative of hydroxyethylcellulose etc.; Polyvinyl alcohol or its modification product.In starch derivatives, can use oxidized starch, esterification starch, dextrin, etherification starch, cool water soluble starch etc., in these starch, be that about 3～50,000 oxidized starch is more preferred with molecular weight.As the use level of starch,, preferably use in the ratio of 2～25 parts by mass with respect to pigment 100 parts by mass.Explanation in passing is if the use level of starch derivatives is less than 2 parts by mass, then when being transferred to coating liquid on the paper, coating becomes not liquidation prematurely, therefore coating can not be transferred on the paper expeditiously, the coating sediment remains on the roller, might cause roller contaminated.In addition,, then can cause dope viscosity exceedingly to raise, cause apparatus for taking paper (paper is from れ) instability, might on the surface of paper, produce uneven phenomenon with certain decorative pattern in operation folder exit if the use level of starch derivatives surpasses 25 parts by mass.
As can be used for water-dispersible adhesive of the present invention, can enumerate: the conjugated diene copolymer latex of Styrene-Butadiene latex, methyl methacrylate butadi ene copolymer latex, styrene-methyl methacrylate butadi ene copolymer latex etc.; The acrylic polymer latex of the polymer of acrylate and/or methacrylate or copolymer emulsion etc.; The polyvinyls latex of ethylene-vinyl acetate polymer emulsion etc.; Perhaps utilize polymer that the monomer of the functional group contain carboxyl etc. obtains above-mentioned various polymer emulsion modifications or copolymer emulsion etc.; In these copolymer emulsions, preferably average grain diameter is the latex of 40～150nm.Under the condition of identical amount, the average grain diameter of latex is more little, and the contact area of the pigment in latex and the coat is big more, therefore can more effectively demonstrate the intensity of coat.Explanation in passing reduces if the particle diameter of copolymer emulsion, is used for the intensity on the surface that moistening water gets wet less than 40nm in the time of then can causing by hectographic printing owing to the influence of the emulsifying agent that is subjected to cooperating when making latex, and is therefore bad.In addition,, then can under the condition of same amount, cause the contact area of the pigment in latex and the coat to reduce, therefore might make to show that intensity reduces if the particle diameter of latex surpasses 150nm.The amount of the copolymer emulsion that contains in the pigment coating liquid with respect to pigment 100 parts by mass, can preferably be selected in the scope of 5～15 parts by mass in 3～20 parts by mass.
According to the present invention, when being coated with by the film load mode, in order to give coating adaptability and to give enough surface strengths to coated paper, with respect to pigment 100 parts by mass, wish to merge the starch derivatives of use 2～25 parts by mass and the copolymer emulsion of 3～20 parts by mass (preferred 5～15 parts by mass).
The coating liquid that uses when forming coat on coated paper of the present invention only has the occasion of low water retention property, for example with respect to pigment 100 parts by mass, even the use level of starch derivatives is 2 parts by mass or also is fewer more than 2 parts by mass, in this occasion, when being transferred to coating liquid on the paper when in coating, the moisture of coating liquid is promptly absorbed by paper, therefore makes the coating liquid on roller solidify, thereby can not peel off, so might cause roller contaminated from roller.In order to prevent this situation, preferably contain tackifier or water retention agent in the coating liquid.Tackifier or water retention agent as preferred use in the present invention, can enumerate: the hydrophily based polyalcohol of the alkali tackify type of polycarboxylic acids, acrylic copolymer etc., acrylic polymer, poly(ethylene oxide) etc. two terminal go up the meeting mould assembly that cooperates lipophilic groups to form, carboxymethyl cellulose, mosanom etc. from natural type etc., as its use level, with respect to pigment 100 parts by mass, preferably in the scope of 0.01～1.0 parts by mass, more preferably in the scope of 0.05～0.8 parts by mass.
In addition, in coating liquid, except tackifier or water retention agent, can also be as required, the various auxiliary agents of the dyestuff of system of cooperation blueness aptly or violet or colored pigment, fluorescent dye, antioxidant, antiaging agent, antistatic additive, defoamer, ultra-violet absorber, dispersant, pH regulator agent, releasing agent, water-repelling agent etc.
Coating liquid in the present invention contains above-mentioned specific delaminated kaoline and merges other pigment, adhesive that uses and the various auxiliary agents that use as required as required, and the solid component concentration of this coating liquid can be selected in the scope of 25～75 quality %.If consider from the adjustment or the operability of coating weight, then be preferably the scope of 40～65 quality %.
Drying coated amount as the coat on coated paper of the present invention is preferably 0.5～20.0g/m on each side surface
2In passing the explanation, when coating weight less than 0.5g/m
2The time, the surface coverage of coating is inferior, can not obtain desirable quality.In addition, if surpass 20.0g/m
2, then unfavorable economically.
Should illustrate that the specific delaminated kaoline that uses in the present invention by the film load mode, is 12g/m according to the drying coated amount at each side surface
2About or 12g/m
2About below, preferably at 10g/m
2About or 10g/m
2About following condition carry out light weight and be coated with when making coating paper for printing, can obtain more significant effect.
Body paper as using does not in the present invention have particular determination, can use the body paper that uses in coating paper for printing in the past.
As the paper pulp composition that constitutes this class body paper, for example can mix the bleached chemical paper pulps of broad leaf tree paper pulp (LBKP) that uses normally used bleaching or the coniferous tree paper pulp of bleaching (NBKP) etc. aptly; The mechanical pulp of wood fragments paper pulp (GP), adding pressure type wood fragments paper pulp (PGW), refiner wood fragments paper pulp (RGP), thermomechanical pulp (TMP) etc.; Deinked waste paper paper pulp (DIP), broken paper etc.The preferred 70 quality % that do not surpass the whole paper pulp that constitute body paper of the amount of mechanical pulp.If surpass 70 quality %, then may damage the printing adaptability of the printing smooth, surface strength etc. of the coated paper of final acquisition.In addition, also can be coupled among the paper pulp fiber that obtains by non-wood fibrous raw materials such as gombo hemps, synthetic paper-pulp, the inorfil etc. one or more in body paper.
For mechanical pulp or deinked waste paper paper pulp, can bleach as required, and can be undertaken by bleaching degree arbitrarily.
Should illustrate, in the bleaching of paper pulp, preferably adopt the bleaching process of the such chlorine compound of the chlorine do not use the such molecular state of chlorine or chlorine dioxide, help environmental protection like this.As paper pulp, can enumerate ECF paper pulp or TCF paper pulp through such bleaching process.
As the filler that can add in the body paper, for example can illustrate: the organic pigment of the inorganic pigment of powdered whiting, precipitated calcium carbonate, calcium sulfite, gypsum, talcum, clay, sintering kaolin, white carbon, amorphous silica, delaminated kaoline, diatomite, magnesium carbonate, titanium dioxide, aluminium hydroxide, calcium hydroxide, magnesium hydroxide, zinc hydroxide etc. or urea-formaldehyde resin particulate, small hollow-particle etc. etc., the filler that contains in waste paper or broken paper etc. also can reuse.Also two or more fillers can be mixed and use.
In the present invention, for the use level of filler, can add filler according to the consumption that the ash content that can make paper (body paper) is in 3～20 quality % scopes usually.
Should illustrate, in body paper, except paper pulp and filler, add adhesive in can also adding as required; The qualification rate improving agent of anionic, nonionic, cationic or amphoteric; Drainability improving agent, paper power reinforcing agent etc. copy paper with in add auxiliary agent.As the interior concrete example that adds adhesive, for example can enumerate: alkyl ketene dimer class, alkenyl succinic anhydrides class, styrene-propene acids, higher fatty acids class, tree oil lipid adhesive, rosin based adhesive etc.In addition, concrete example as qualification rate improving agent, drainability improving agent, paper power reinforcing agent for example can illustrate: the polyvalent metal compounds of aluminium etc. (can enumerate aluminum sulfate, aluminium chloride, sodium aluminate, alkaline aluminium compound etc. particularly), various starch based, polyacrylamide, carbamide resin, polyamide polyamino resin, polymine, polyamine, polyvinyl alcohol, poly(ethylene oxide) etc.In addition, in the scope that does not hinder the desirable effect of the present invention, also can use leavening agent, softener with the function that can suppress to mutually combine between the fiber.As the concrete example of leavening agent, softener, for example can illustrate: the polyoxyalkylene compounds of the ester compounds of polyalcohol and aliphatic acid, polyalcohol and fatty acid ester compound, fatty acid polyamide-amine, polyol surfactant, grease class nonionic surfactant etc.The addition of said leavening agent, softener is generally about 0.05～2.0 quality % that is equivalent to paper pulp.
The paper slip spare of copying to body paper does not have particular determination, for example can select aptly to use from the commercial-scale paper machine of fourdrinier wire formula paper machine, one-tenth crack type (ギ ヤ Star プ Off オ one マ one type) paper machine, cylinder paper machine, short net formula paper machine etc. according to purpose.As copying the paper mode, can be that acidity is copied paper, neutrality and copied paper, alkalescent and copy any mode among the paper etc., but, consider from requiring paper keeping quality aspect in recent years, preferably utilize the neutral body paper that the paper method is manufactured paper with pulp of copying.Can carry out common applying glue extrusion process or pigment applying glue extrusion process to body paper,, can use starch derivatives, polyvinyl alcohol or polyacrylamide etc. aptly as the adhesive of this applying glue extrusion process.Weight per unit area as copy the body paper that paper slip spare manufactures paper with pulp by these is preferably 30～70g/m
2
In manufacture method of the present invention, when being coated with above-mentioned coating liquid, be coated with according to the film load mode.As the apparatus for coating of film load mode, can use guide roller coating machine, scraper-type or bar type metallization applying glue extrusion coating machine etc.
For the coated paper of acquisition like this, can according to paper by various known precise machining devices for example the mode of supercalender, gloss calender, soft calender etc. carry out the fine finishining of goods.
(embodiment)
Enumerate embodiment below and specifically describe the present invention, but self-evident, the present invention is not subjected to the qualification of these embodiment.In addition, if not special explanation, then part and the % in all examples all represents parts by mass and quality %.
Kaolinic each rerum natura of using in embodiment and comparative example is measured by the method for putting down in writing below, and the measurement result that is obtained is shown in Table 1.
(measuring the average grain diameter of pigment by the light scattering mode)
Use the laser diffraction formula particle size distribution device SALD-2000 of (strain) Shimadzu Seisakusho Ltd. system, measure the size distribution of pigment, and measure the average grain diameter (d50 that is equivalent to 50 mass accumulation %
1).Should illustrate, the dispersible pigment dispersion that mensuration is provided is to make the pigment slurry that a kind of solid component concentration is 5 quality % by 0.05% the dispersant (Sodium Polyacrylate) that interpolation is equivalent to pigment, obtains in the zone that then this slurry dilution to this determinator can be measured.
(pressing the average grain diameter that subsidence style is measured pigment)
Use the セ デ イ グ ラ Off-5100 of U.S. マ イ Network ロ メ リ ラ イ Network ス society system, measure the size distribution of pigment, and measure the average grain diameter (d50 that is equivalent to 50 mass accumulation %
2).Should illustrate, the dispersible pigment dispersion that offers mensuration is to make the pigment slurry that a kind of solid component concentration is 5 quality % by 0.05% the dispersant (Sodium Polyacrylate) that interpolation is equivalent to pigment, then with these slurries sodium pyrophosphate (trade name: Na Application カ リ Application S1, phosphorus chemistry industry society system) 0.1% aqueous solution is diluted to the pigment solids constituent concentration and is about 1%, and it is applied ultrasonic dispersing handles (30W, 45KHz, 60 minutes) and obtain.
For the coating paper for printing that in following embodiment and comparative example, obtains, estimate by following method, institute obtains and the results are shown in the table 1.Should illustrate that following evaluation test is to carry out under the environment of 23 ℃ of temperature and relative humidity 50%.
(blank sheet of paper glossiness)
Use meets 75 ° of Grossmeters of ISO 8254-1 (1999) regulation to be measured, and obtains its mean value.
(smoothness of coated paper)
Measure Wang Yan formula smoothness according to JAPAN TAPPI paper pulp test method No.5-2 (2000).
(printing adaptability (ink adhesion and printing smooth))
Use printing-ink (the Values-G type of 0.1cc, big Japanese ink chemical industry society system), on RI printing machine (bright making is made), print, observe and the printing ink concentration (ink adhesion) of overall merit transfer printing and the transfer printing uniformity (printing smooth) of printing ink with visual method.
◎: printing adaptability is good especially.
Zero: printing adaptability is good.
△: printing adaptability is poor slightly.
*: printing adaptability is poor.
(surface printing intensity)
Use RI printing machine (bright making is made) with printing-ink (the red BT=13T﹠amp of paper test SD50; K TOKA society system) 0.4cc launches on roller, under the condition that transfer speed is slowed down printing ink is being transferred on the coated paper that is used to estimate to print, again stirring and be printed on again printing ink on the coated paper of having printed once under the situation of not wiping the printing ink on the roller then, under the situation of not wiping the printing ink on the roller once more, printing ink is stirred again and is printed on again on the coated paper of having printed secondary then, carried out three printings altogether.The printing ink that remains on the roller is transferred on other a piece of paper according to the state towards the paper surface, estimates the decolouring situation of transfer ink with visual method.
◎: not decolouring fully.
Zero: can be observed slight decolouring.
△: can be observed decolouring.
*: significantly decolouring.
Embodiment 1
(preparation of the coating liquid of coat)
Use a kind of like this delaminated kaoline (trade name: ユ Application Star ア one エ Network ス ト リ one system, イ メ リ ス society system), when it is measured, with respect to the kaolin that disperses, the Sodium Polyacrylate that adds 0.1 part is as dispersant, the average grain diameter d50 that the aqueous solution that is obtained is measured by the light scattering mode
1Be 2.49 μ m, press the average grain diameter d50 that subsidence style is measured
2Be 0.33 μ m, d50
1/ d50
2Be 7.55, and in pressing the particle size distribution curve of subsidence style, the Mass Distribution of the particle that 2 μ m or 2 μ m are following is that the Mass Distribution of the following particle of 95.9%, 0.3 μ m or 0.3 μ m is 45.1%; Utilize ユ one レ ス dispersion machine with 100 parts of dispersions of this delaminated kaoline, be prepared into pigment slurry.With respect to 100 parts of pigment, in these slurries, add oxidized starch (trade name: エ one ス C in turn as adhesive, prince コ one Application ス タ one チ society system) 10 parts (pressing solid constituent converts), styrene-butadiene copolymer emulsion (trade name: ス マ one テ Star Network ス PA2323, particle diameter: 89nm, Japan エ イ ア Application De エ Le society system) 10 parts (press the solid constituent conversion) so makes final solid component concentration and is 53% coating liquid.
(preparation of coating paper for printing)
Use bar type metallization applying glue extrusion coating machine that the coating liquid of above-mentioned acquisition is coated on a kind of bulk density and be 0.62g/cm
3High-quality body paper (weight per unit area 44g/m
2) both side surface on and be dried so that the drying coated amount on every side surface is 7g/m
2The coated paper that so obtains is passed through supercalender under the condition of 70 ℃ of roller temperatures, line pressure 200kN/m, obtained coating paper for printing.
Embodiment 2
When the coating liquid of preparation embodiment 1, with the use level of the oxidized starch that converts by solid constituent deduct to 2 parts, the use level of the styrene-butadiene copolymer emulsion that converts by solid constituent is increased to 12 parts, adds the water retention agent (trade name: S-350 of 0.03 part (pressing solid constituent converts) in addition, ソ マ one Le society system), so prepare coating liquid, in addition, obtain coating paper for printing according to similarly to Example 1 method.
Embodiment 3
When the coating liquid of preparation embodiment 1, as pigment composition, コ Application Star ア one エ Network ス ト リ one system) and the powdered whiting (trade name: Ha イ De ロ カ one Block 90 of 15 parts of average grain diameter 0.8 μ m use 85 parts of delaminated kaolines (trade name:, be equipped with the industrial society of northern efflorescence system), the use level of the oxidized starch that will convert by solid constituent increases to 15 parts, latex is changed to styrene-butadiene copolymer emulsion (trade name: SN-1131, particle diameter: 190nm, Japan エ イ ア Application De エ Le society system), in addition, obtain coating paper for printing according to similarly to Example 1 method.
Embodiment 4
When the coating liquid of preparation embodiment 1, as pigment composition, コ Application Star ア one エ Network ス ト リ one system) and the precipitated calcium carbonate of 60 parts of average grain diameter 0.45 μ m (trade name: Block リ リ ア Application ト S-15 use 40 parts of delaminated kaolines (trade name:, shiraishi calcium society system), to increase to 15 parts by the oxidized starch amount that solid constituent converts, latex is changed to Styrene-Butadiene latex (trade name: SN-1131, particle diameter: 190nm), and the solid component concentration of final coating liquid is adjusted into 55%, in addition, obtain coating paper for printing according to similarly to Example 1 method.
Comparative example 1
When the coating liquid of preparation embodiment 1,, use a kind of average grain diameter d50 that measures by the light scattering mode as pigment composition
1Be 4.58 μ m, press the average grain diameter d50 that subsidence style is measured
2Be 0.46 μ m, d50
1/ d50
2Be 9.96, and in pressing the particle size distribution curve of subsidence style, the Mass Distribution of the particle that 2 μ m or 2 μ m are following is 88.5%, 0.3 the Mass Distribution of the particle that μ m or 0.3 μ m are following is 31.5% kaolin (trade name: コ Application Star ア-1500, イ メ リ ス society system) 85 parts is the powdered whiting (trade name: Ha イ De ロ カ one Block 90 of 0.8 μ m with average grain diameter, be equipped with northern efflorescence industry society system) 15 parts, and the use level of the oxidized starch that will convert by solid constituent increases to 15 parts, and latex changed to Styrene-Butadiene latex (trade name: SN-1131, particle diameter: 190nm), in addition, obtain coating paper for printing according to similarly to Example 1 method.
Comparative example 2
When the coating liquid of preparation embodiment 1,, use a kind of average grain diameter d50 that measures by the light scattering mode as pigment composition
1Be 1.95 μ m, press the average grain diameter d50 that subsidence style is measured
2Be 0.28 μ m, d50
1/ d50
2Be 6.96, and in pressing the particle size distribution curve of subsidence style, the Mass Distribution of the particle that 2 μ m or 2 μ m are following is 94.9%, 0.3 the Mass Distribution of the particle that μ m or 0.3 μ m are following is 52.6% kaolin (trade name: ミ ラ グ ロ ス J, エ Application グ Le Ha one De society system), and with latex change to Styrene-Butadiene latex (trade name: SN-1131, particle diameter: 190nm), in addition, obtain coating paper for printing according to similarly to Example 1 method.
Comparative example 3
When the coating liquid of preparation comparative example 2,, use a kind of average grain diameter d50 that measures by the light scattering mode as pigment composition
1Be 3.23 μ m, press the average grain diameter d50 that subsidence style is measured
2Be 0.65 μ m, d50
1/ d50
2Be 4.97, and in pressing the particle size distribution curve of subsidence style, the Mass Distribution of the particle below the 2 μ m or 0.65 is 81.2%, 0.3 the Mass Distribution of the particle that μ m or 0.3 μ m are following is 26.2% delaminated kaoline (trade name: ア ス ト ラ プ レ one ト, イ メ リ ス society system), in addition, according to obtaining coating paper for printing with the same method of comparative example 2.
Comparative example 4
When the coating liquid of preparation comparative example 2,, use a kind of average grain diameter d50 that measures by the light scattering mode as pigment composition
1Be 1.41 μ m, press the average grain diameter d50 that subsidence style is measured
2Be 0.48 μ m, d50
1/ d50
2Be 2.94, and in pressing the particle size distribution curve of subsidence style, the Mass Distribution of the particle that 2 μ m or 2 μ m are following is 96.5%, 0.3 the Mass Distribution of the particle that μ m or 0.3 μ m are following is 29.2% delaminated kaoline (trade name: パ ラ プ リ Application ト, PPSA society system), in addition, according to obtaining coating paper for printing with the same method of comparative example 2.
Comparative example 5
When the coating liquid of preparation comparative example 2,, use a kind of average grain diameter d50 that measures by the light scattering mode as pigment composition
1Be 3.71 μ m, press the average grain diameter d50 that subsidence style is measured
2Be 0.95 μ m, d50
1/ d50
2Be 3.91, and in pressing the particle size distribution curve of subsidence style, the Mass Distribution of the particle that 2 μ m or 2 μ m are following is 75.0%, 0.3 the Mass Distribution of the particle that μ m or 0.3 μ m are following is 15.8% delaminated kaoline (trade name: カ ピ system NP, イ メ リ ス society system), in addition, according to obtaining coating paper for printing with the same method of comparative example 2.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 | |
| High mountain range part soil | 100 | 100 | 85 | 40 | 85 | 100 | 100 | 100 | 100 |
| d50 1 | 2.49 | 2.49 | 2.49 | 2.49 | 4.58 | 1.95 | 3.23 | 1.41 | 3.71 |
| d50 2 | 0.33 | 0.33 | 0.33 | 0.33 | 0.46 | 0.28 | 0.65 | 0.48 | 0.95 |
| d50 1/d50 2 | 7.55 | 7.55 | 7.55 | 7.55 | 9.96 | 6.96 | 4.97 | 2.94 | 3.91 |
| 2 μ m or below it | 95.9 | 95.9 | 95.9 | 95.9 | 88.5 | 94.9 | 81.2 | 96.5 | 75.0 |
| 0.3 μ m or below it | 45.1 | 45.1 | 45.1 | 45.1 | 31.5 | 52.6 | 26.2 | 29.2 | 15.8 |
| Carbonic acid heavy carbon part calcium acid calcium | 15 | 15 |
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 | |
| Lightweight carbon part acid calcium | 60 | ||||||||
| Starch part | 10 | 2 | 15 | 15 | 15 | 10 | 10 | 10 | 10 |
| Latex 190nm part | 10 | 10 | 10 | 10 | 10 | 10 | 10 | ||
| 89nm part | 10 | 12 | |||||||
| Blank sheet of paper 96 gloss | 55 | 53 | 49 | 45 | 42 | 40 | 42 | 43 | 40 |
| Level and smooth Wang Yan formula degree second | 1550 | 1400 | 1350 | 1000 | 1250 | 1050 | 1250 | 1100 | 1150 |
| Ink adhesion and printing smooth | ◎ | ◎ | ○ | ○ | △ | △ | △ | △ | △ |
| Surface printing intensity | ◎ | ○ | ◎ | ◎ | △ | △ | △ | ○ | △ |
Industrial applicibility
By a kind of specific delaminated kaoline is become coating liquid with 20 quality % or the cooperation of the ratio more than the 20 quality % that is equivalent to pigment composition, it is coated on the body paper and the coating paper for printing that obtains according to the film load mode, good aspect blank sheet of paper glossiness or surface smoothness, and the printing adaptability of its ink adhesion, printing smooth and surface printing intensity etc. is also good, is particularly suitable as the light weight coating paper for printing that applies light coating and uses.
Claims (4)
1. coating paper for printing is provided with pigment and adhesive in the one side at least of body paper and is the coat of principal component, it is characterized in that above-mentioned coat contains delaminated kaoline as pigment, the average grain diameter d50 that this delaminated kaoline is measured by the light scattering mode
1In the scope of 2.0～3.5 μ m, press the average grain diameter d50 that subsidence style is measured
2In the scope of 0.20～0.55 μ m, above-mentioned average grain diameter d50
1With average grain diameter d50
2Ratio d50
1/ d50
2Be more than 4 or 4, and, in pressing the particle size distribution curve of subsidence style, the Mass Distribution of the particle that 2 μ m or 2 μ m are following is more than 95% or 95%, and the Mass Distribution of the particle that 0.3 μ m or 0.3 μ m are following is in 35～50% scope, in above-mentioned pigment, the mass ratio of this delaminated kaoline is 20～100 quality %, and with respect to above-mentioned pigment 100 parts by mass, the starch derivatives that contains 2～25 parts by mass is as described adhesive.
2. coating paper for printing as claimed in claim 1 is characterized in that, as above-mentioned adhesive, with respect to above-mentioned pigment 100 parts by mass, also containing particle diameter is copolymer emulsion 1～20 parts by mass of 40～150nm.
3. the manufacture method of a coating paper for printing, the one side at least that is used to be manufactured on body paper are provided with pigment and adhesive to be the coating paper for printing of the coat of principal component, to it is characterized in that this method contains following operation A and B:
Operation A is the following operation that contains the dispersion liquid of delaminated kaoline as coating liquid of preparation, the average grain diameter d50 that this delaminated kaoline is measured by the light scattering mode
1In the scope of 2.0～3.5 μ m, press the average grain diameter d50 that subsidence style is measured
2In the scope of 0.20～0.55 μ m, above-mentioned average grain diameter d50
1With average grain diameter d50
2Ratio d50
1/ d50
2Be more than 4 or 4, and, in pressing the particle size distribution curve of subsidence style, the Mass Distribution of the particle that 2 μ m or 2 μ m are following is more than 95% or 95%, and the Mass Distribution of the particle that 0.3 μ m or 0.3 μ m are following is in 35～50% scope, in above-mentioned pigment, the shared mass ratio of this delaminated kaoline is 20～100 quality %, and with respect to above-mentioned pigment 100 parts by mass, the starch derivatives that contains 2～25 parts by mass is as described adhesive;
Process B is the operation that is coated with the coating liquid of preparing according to above-mentioned operation A by the film load mode in the one side at least of body paper.
4. the manufacture method of coating paper for printing as claimed in claim 3 is characterized in that, in above-mentioned coating liquid, adds tackifier or water retention agent.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005155084A JP4692736B2 (en) | 2005-05-27 | 2005-05-27 | Coated paper for printing and method for producing the same |
| JP2005155084 | 2005-05-27 | ||
| JP2005-155084 | 2005-05-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1869332A CN1869332A (en) | 2006-11-29 |
| CN1869332B true CN1869332B (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100850444A Expired - Fee Related CN1869332B (en) | 2005-05-27 | 2006-05-22 | Coating paper for printing and method of manufacturing same |
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| Country | Link |
|---|---|
| JP (1) | JP4692736B2 (en) |
| CN (1) | CN1869332B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2273009A4 (en) | 2008-03-21 | 2013-03-27 | Jujo Paper Co Ltd | Method for producing coated paper |
| JP5128460B2 (en) * | 2008-12-25 | 2013-01-23 | 北越紀州製紙株式会社 | Coated white paperboard |
| JP5949168B2 (en) * | 2012-05-31 | 2016-07-06 | 王子ホールディングス株式会社 | Coated fancy paper |
| CN104494254A (en) * | 2014-12-24 | 2015-04-08 | 汕头市金润环保包装材料有限公司 | Synthetic paper for printing textbooks |
| WO2023230372A1 (en) * | 2022-05-27 | 2023-11-30 | Westrock Mwv, Llc | Basecoat compositions and coated cellulosic structures |
| CN115341406A (en) * | 2022-09-02 | 2022-11-15 | 东莞建晖纸业有限公司 | White-bottom white coated paper back coating and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0296866A2 (en) * | 1987-06-26 | 1988-12-28 | E.C.C. America Inc. | Kaolinite aggregation using organo-silicon compounds |
| US20030059601A1 (en) * | 2001-03-28 | 2003-03-27 | Oji Paper Co., Ltd. | Coated paper sheet |
| WO2004016697A2 (en) * | 2002-08-16 | 2004-02-26 | Imerys Rio Capim Caulim, S.A. | Kaolin pigment products |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01250494A (en) * | 1988-03-31 | 1989-10-05 | Nippon Zeon Co Ltd | Coating composition for printing paper used in offset rotary printing |
| JP3166361B2 (en) * | 1992-11-26 | 2001-05-14 | ジェイエスアール株式会社 | Composition for paper coating |
| JP4154752B2 (en) * | 1998-04-23 | 2008-09-24 | 王子製紙株式会社 | Dull coated paper |
| JP2001262493A (en) * | 2000-03-15 | 2001-09-26 | Mitsubishi Paper Mills Ltd | Coated paper for printing and method for producing the same |
| JP2002363887A (en) * | 2001-06-04 | 2002-12-18 | Oji Paper Co Ltd | Coated white board applicable to sharable use in offset/ gravure printing |
| JP4003558B2 (en) * | 2002-06-27 | 2007-11-07 | 王子製紙株式会社 | Bulky coated paper |
| CN1688448B (en) * | 2002-10-01 | 2010-09-15 | 赛佩荷兰服务有限公司 | Coated printing sheet and process for making same |
| US20040099391A1 (en) * | 2002-11-26 | 2004-05-27 | Bob Ching | Process for producing super high bulk, light weight coated papers |
| JP4918746B2 (en) * | 2003-07-14 | 2012-04-18 | 日本製紙株式会社 | Manufacturing method of coated paper for offset printing and coated paper |
| JP4449820B2 (en) * | 2004-07-02 | 2010-04-14 | 王子製紙株式会社 | Coated paper for printing |
-
2005
- 2005-05-27 JP JP2005155084A patent/JP4692736B2/en not_active Expired - Fee Related
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2006
- 2006-05-22 CN CN2006100850444A patent/CN1869332B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0296866A2 (en) * | 1987-06-26 | 1988-12-28 | E.C.C. America Inc. | Kaolinite aggregation using organo-silicon compounds |
| US20030059601A1 (en) * | 2001-03-28 | 2003-03-27 | Oji Paper Co., Ltd. | Coated paper sheet |
| WO2004016697A2 (en) * | 2002-08-16 | 2004-02-26 | Imerys Rio Capim Caulim, S.A. | Kaolin pigment products |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1869332A (en) | 2006-11-29 |
| JP4692736B2 (en) | 2011-06-01 |
| JP2006328595A (en) | 2006-12-07 |
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