CN1534137A - Coating paper for printing - Google Patents
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- CN1534137A CN1534137A CNA031079962A CN03107996A CN1534137A CN 1534137 A CN1534137 A CN 1534137A CN A031079962 A CNA031079962 A CN A031079962A CN 03107996 A CN03107996 A CN 03107996A CN 1534137 A CN1534137 A CN 1534137A
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Abstract
A coated paper for print purpose and its making method are disclosed. Said coated paper features that a PVA-series resin composition composed of polyvinyl alcohol with 90 mole% of saponified degree and the polyacrylic acid (or its salt) and/or cellulose derivative (or its salt) in wt ratio of 100:(0.1-10) is coated on both surfaces of basic paper and the mixture of pigment and adhesive is coated on at least one surface of basic paper to obtain 500-1000 g/sq.m.24hr of moisture permeability. When it is in friction with offset print roller, the wrinkles and air bubble can not be generated.
Description
[technical field]
The present invention relates to coated paper for printing, especially relate to the offset rotary wrinkle that the drying process after printing usually takes place in the time of not only can the preventing web offset printing generation of (circle claims sometimes by wrinkle in printing), and the coated paper for printing that can prevent to bubble and take place.
[background technology]
Along with laborsavingization or high speed, mode of printing is tending towards being developed to web-fed rotary hectographic printing mode (to call the offset rotary printing in the following text) by hectograph sheet-fed mode of printing in printing circle in recent years.The offset rotary printing is because print speed printing speed is fast, the back operation also can laborsavingization etc., so production efficiency is more than hectograph sheet-fed printing height.
Yet the offset rotary printing is carried out heated-air drying immediately after printing, so there are unexistent several qualitative problems in the sheet-fed printing.Wherein, most important and scabrous problem is to produce the offset rotary wrinkle.The wrinkle of this limb roller wrinkle muscle shape that to be printing back produce along the flow direction of paper, this offset rotary wrinkle is the easiest to be taken place on the coated paper of letter-quality requiring.The printed article that the wrinkle program is serious is just like the galvanized iron sheet ripple has greatly destroyed its commodity.
Therefore, do not produce the coated paper for printing of offset rotary wrinkle in the printing of strong request offset rotary, but such coated paper for printing also is not seen in market.
, the occurrence cause of relevant above-mentioned offset rotary wrinkle, existing several research reports, its view is roughly divided two kinds.The view of its a kind of " tension force wrinkle ", the wrinkle that produces applying tension force with paper when offset rotary prints are that the drying because of printing ink is fixed and forms the offset rotary wrinkle.Another kind is the view that produces wrinkle at the drying process of offset rotary printing owing to the inking part and the difference of the dry amount of contraction of non-inking part, (with reference to the rugged Yue Zhi in mountain, " proceeding is delivered in the research of pulp technology association ", 1982, V01 49, P.110-113).
Motion is in the past printed one of concrete means of wrinkle generation for suppressing offset rotary, be that the pulp drainage degree of body paper in the offset rotary coated paper for printing is remained on particular range, the while also is limited in the good field of particular ventilation to the air permeability of this body paper and suppresses the method (opening clear 58-186700 communique with reference to the spy) that the offset rotary wrinkle takes place.Yet, the offset rotary coated paper for printing, owing to through ovennodulation paper pulp, copy paper, coating, with calender pressurization press polish with the paper that a series of operation is carried out goodsization such as batch, so only merely adjust the freeness (freedom) of paper pulp or the air permeability of body paper, can't obtain satisfied goods at present aspect the elimination offset rotary wrinkle.
In addition, proposed to batch the inside interlaminar strength of moisture and body paper, solved or alleviated the technology (opening flat 9-291496 communique) of offset rotary wrinkle with reference to the spy by regulation.Yet, reduce the generation of inner interlaminar strength growth encourage as the bubble (foaming) of the another problem of offset rotary copperplate paper, coated paper moisture must be reduced in order to suppress this phenomenon, fracture phenomenon might be occurred but moisture is reduced in the surface of folding process coated paper thereafter.So-called take place " folding line ".And these out-of-date methods can not resemble and reduce slight crack the generation that can solve the offset rotary wrinkle.
Present inventors had proposed in the past by establishing the polyvinyl alcohol coating layer on basic paper, establishing the pigment application layer in the above again, the dry convergent force of gained coated paper or air permeability etc. are adjusted to particular range, almost there is not the generation of offset rotary wrinkle, in addition, even formerly proposed the coated paper for printing (opening the 2000-045199 communique) that photogravure or aniline printing cause seldom that also registering is inaccurate with reference to the spy.This motion is to dwindle the inking of the coated paper of offset rotary printing partly makes it to prevent the offset rotary wrinkle with the difference of non-inking dry amount of contraction partly generation as far as possible.
Promptly, present inventors' above-mentioned application invention is in the drying process of offset rotary printing, the inking part of the coated paper of offset rotary printing, owing to covered the evaporation that hinders moisture in the ply of paper by printing ink, and the non-inking part that is not covered by printing ink, owing to do not hinder the evaporation of moisture in the ply of paper, so create a difference with the dry amount of contraction of non-inking part in the inking part, estimate to take place the offset rotary wrinkle as cause, simultaneously by on coated paper, establishing the coating layer of polyvinyl alcohol in advance, similarly suppress water evaporates from non-inking part (blank sheet of paper part) with the inking part.
According to this application invention, be uniform tunicle by the coating layer that forms above-mentioned polyvinyl alcohol, can reduce and even solve the generation of offset rotary wrinkle significantly.Yet, in the time of carrying out the high-speed coating as scraper coating,, do not eliminate the offset rotary wrinkle sometimes if,, can not form the tunicle of uniform polyvinyl alcohol owing to the shear viscosity height with the water-based liquid of polyvinyl alcohol just, cause the generation of bubble on the contrary.Moreover so-called bubble is that the moisture in the ply of paper carry out water vapourization in the process of the coated paper that dry offset rotary prints, and when not having loss as if this water vapour, coated paper is because of its volumetric expansion does not tolerate, the phenomenon of the structure division ground of coated paper destruction (expansion).Therefore, above-mentioned when the first to file invention will be carried out blade coating, be difficult to the generation that prevents the generation of offset rotary wrinkle simultaneously and prevent bubble.
And, for generation that prevents the offset rotary wrinkle simultaneously and the generation that prevents bubble, if reduce coated paper significantly contain moisture (for example, below 3.5%), just like the preceding illustrated improper situation of folding line and so on that easily causes.
In addition, as the generation that prevents the offset rotary wrinkle simultaneously with prevent that the method that bubble takes place from having the method that reduces the printing machine baking temperature, but as if too reducing baking temperature, being the paper surface temperature of drying machine outlet, printing ink dry insufficient produces the new problem of printing surface scratch etc. in the later operation of drying machine.
[summary of the invention]
The object of the invention is to provide the offset rotary printing that offset rotary wrinkle, yet gassing not the time not only do not take place basically, certainly during the offset rotary rotary printing, does not also produce the coated paper for printing of folding line during common printing.
Coated paper for printing of the present invention is characterized in that establishing pigment and bonding agent and is in the coated paper for printing of coating layer of principal component, the rate of perviousness M of following regulation on body paper
65Be 500g/m
2Below the 24h, the rate of perviousness M of same following regulation
100Be 1000g/m
2More than the 24h.
Here, so-called rate of perviousness M
65Mean cup envelope method, in cup, adorn the anhydrous calcium chloride of about 10g, the temperature in the constant temperature and humidity device is remained on the rate of perviousness that 20 ℃, relative humidity remain on the test portion of being calculated by the vapor transfer rate that measures after 65%, 6 hour according to JIS Z 0208 regulation.So-called rate of perviousness M
100Mean cup envelope method according to JIS Z 0208 regulation, dress contains the water that polyacrylate is about 20g of super absorbent resin 0.5 weight % in cup, the temperature of constant temperature and humidity device is remained on 40 ℃, relative humidity is remained on the rate of perviousness of the test portion of calculating by the vapor transfer rate of metering after 65%, 6 hour.
In the coated paper for printing of the present invention, preferably its coating layer does not contain water soluble adhesive, but can contain water soluble adhesive as required on a small quantity.Promptly, the amount of the water soluble adhesive that contains in the coating layer, per 100 weight portion pigment are the following coated papers of 2.5 weight portions in the coating layer, even it is also dry easily to reduce baking temperature printing ink, so two kinds of situations of the generation of easier generation that prevents the offset rotary wrinkle and bubble.
Coated paper for printing of the present invention, it is characterized in that by the two sided coatings at basic paper contain 90 moles of (A) saponification degrees more than the % polyvinyl alcohol and (B) polyacrylic acid (or its salt) and/or cellulose derivative (or its salt) make (A): (B)=100: the water-based liquid of the PVA resin composition of the weight ratio of 0.1-10, carrying out drying, to make the dry weight of each face be 0.5-5.0g/m
2, modulate aforesaid moisture permeability M
65Be 500g/m
2Below the 24h, aforesaid rate of perviousness M
100Be 1000g/m
2The body paper that 24h is above is established pigment and bonding agent is the coating layer of principal component in the one side at least of gained body paper.
In addition, coated paper for printing of the present invention, it is characterized in that by the two sided coatings at basic paper contain 90 moles of polyvinyl alcohol more than the % of (A) saponification degree and (B) polyacrylic acid (or its salt) and/or cellulose derivative (or its salt) by (A): (B)=100: the water-based liquid of the PVA resin composition of the weight ratio of 0.1-10, carrying out drying, to make the dry weight of each face be 0.5-5.0g/m
2, and the one side at least of the body paper that makes establishes pigment and bonding agent is the coating layer of principal component, the rate of perviousness M of afore mentioned rules
65Be 500g/m
2Below the 24h, the rate of perviousness M of same afore mentioned rules
100Be 1000g/m
2More than the 24h.
When making coated paper for printing of the present invention, make the water-based liquid of above-mentioned PVA resin composition contain calcium carbonate, per 100 weight portions of the PVA resin composition that contains in the water-based liquid, its calcium carbonate amount is the 50-200 weight portion, preferably drying is carried out on the two sides that such water-based liquid is coated on basic paper, and making each face is 0.5-5.0g/m as the dry weight of PVA resin composition
2
Among the present invention so-called " body paper ", refer to the scraps of paper that use when acquisition end article of the present invention is coated paper for printing, these scraps of paper are scraps of paper that the coating layer of PVA resin composition is established on the two sides, mean the scraps of paper of also not establishing pigment constituent coating layer.And, claim " basic paper " obtaining " body paper " preceding scraps of paper of not establishing PVA resin composition coating layer from now on, distinguish with " body paper ".
Moreover the present invention's explanation " basic paper " comprises that the sector is commonly referred to as the scraps of paper of coated paper with body paper.This coated paper body paper generally uses 2 roller gluing extrusion press, roll coater, doctor knife coater, gate roller gluing extrusion press, thin film metrology gluing extrusion press etc., at the surperficial pre-coating starch of the scraps of paper or the mixture of starch and pigment etc.
[working of an invention scheme]
Coated paper for printing of the present invention is characterized in that rate of perviousness M
65Be 500g/m
2Below the 24h, rate of perviousness M
100Be 1000g/m
2More than the 24h.
That is be 500g/m, by the rate of perviousness that makes coated paper
2Below the 24h, the aeration of water vapour can be suppressed to reduce, at the dry initial stage when offset rotary prints, the evaporation of inking part and non-inking part moisture can be suppressed to reduce.Its result dwindles the difference of inking part and the dry amount of contraction of non-inking part, can suppress the generation of offset rotary wrinkle.By making the rate of perviousness M of coated paper
100Be 1000g/m
2More than the 24h, when carrying out water vapour as if the moisture in the later stage of drying ply of paper when offset rotary prints, owing to can suppress to reduce its vapour pressure, so can reduce the generation of bubble.That is rate of perviousness M,
65Be 500g/m
2Following and the rate of perviousness M of 24h
100Be 1000g/m
2The coated paper for printing that 24h is above can prevent the generation of offset rotary wrinkle simultaneously and prevent the generation of bubble.
Coated paper for printing of the present invention preferably adopts at moisture permeability M
65Be 500g/m
2Below the 24h, rate of perviousness M
100Be 1000g/m
2At least the one side of the body paper that 24h is above is established pigment and bonding agent and is the pigment application layer of principal component and makes, and above-mentioned body paper is preferably established specific PVA resin composition coating layer on the two sides of basic paper.
The base paper usage that can do as usual is copied paper manufacturing to pulp beating, and paper pulp does not have particular restriction, for example can suitably select to use broad leaf tree to shine kraft pulp, coniferous tree is shone kraft pulp, high-yield pulp, deinked pulp etc.Moreover, also can use the so-called ECF paper pulp or the TCF paper pulp that limit chlorine based compound use amount during association with pulp bleaching.The paper method of copying of relevant basic paper does not have particular restriction, can adopt acidity to copy paper method or neutrality and even alkalescence arbitrarily and copy the paper method.In addition, the mixture of coating starch or starch and pigment in advance as described above, it is coated with in advance and can uses two roller gluing extrusion press, roll coater, doctor knife coater, gate roller gluing extrusion press, thin film metrology gluing extrusion press etc.
Moreover, add filler in usually in the basic paper.As this filler, also can use general paper grade (stock) filler.For example, clay, the inorganic filler of burning till clay, diatomite, talcum, kaolin, burning till kaolin, delamination kaolin, powdered whiting, precipitated calcium carbonate, magnesium carbonate, brium carbonate, titanium dioxide, zinc oxide, silica, amorphous silica, aluminium hydroxide, calcium hydroxide, magnesium hydroxide, zinc hydroxide etc., the organic filler of urea-formaldehyde resins, polystyrene resin, phenolic resins, small hollow-particle etc., these can suitably be used in combination separately or more than 2 kinds.The cooperation ratio of filler, with respect to paper pulp 100 weight portions, preferred 5-20 weight portion.Moreover, during the cooperation increasing proportion of filler, because the interlaminar strength of paper reduces, so must manage to carry out blending with papery such as bubble adaptability.
In addition, except above-mentioned general filler, add the material that reduces fiber combining in preferably on the degree of not destroying the bubble adaptability in the basic paper.Adopting such method is to obtain to be difficult to take place the cause of the coated paper of offset rotary wrinkle with basic paper.
Reduce the material of fiber combining, in molecule, have hydrophobic group and hydrophilic group concurrently, as its concrete example, can enumerate the non-ionic surface active agent, fatty polyamide amine, poly-alkane glycol etc. of ester compounds etc. of epoxy butane addition product, polyalcohol and aliphatic acid of propylene oxide adduct, the higher alcohol of ethylene oxide adduct, the higher alcohol of higher alcohol.
Representational product is the ス Le ゾ one Le VL of BASF AG, the バ イ ボ リ ュ-system P liquid of Bayer company, the リ ア Network ト ペ イ Network of three brilliant companies, the KB-110 medicine of KAO. Corp. SA in the sale medicine now.Any enters between the fiber of paper pulp fiber fixing since increase interfibrous in conjunction with distance, so the reduction fiber combining.Its result, the heat drying amount of contraction during owing to the minimizing printing reduces the generation of offset rotary wrinkle.Make the addition of the material of fiber combining reduction, the preferred 0.1-5 weight portion of per 100 weight portion paper pulp.That is, do not have effect when being lower than 0.1 weight portion, fiber combining reduces when surpassing 5 weight portions, because of bubble adaptability difference bad.Make in the pre-coating liquid when making basic paper and contain the material that reduces fiber combining, also can be coated with two roller gluing extrusion press or gate roll coater.This situation with add paper stock in the situation of adding in carrying out compare because weak effect, so addition reduces the material preferred 3-30 weight portion of solid constituent 100 weight portions in addition with respect to fiber combining.The reduction effect that does not have the offset rotary wrinkle when being lower than 3 weight portions, when surpassing 30 weight portions, fiber combining reduction, not preferred because bubble is fitted the property difference.
When on basic paper, establishing PVA resin composition coating layer, general adopt two sided coatings at basic paper to contain 90 moles of polyvinyl alcohol % more than of (A) saponification degree and (B) polyacrylic acid (or its salt) and/or cellulose derivative (or its salt), make (A): (B)=100: the aqueous solution of the PVA resin composition of the weight ratio of 0.1-10 or aqueous dispersions (below, these are generically and collectively referred to as water-based liquid), carry out dry method.
A composition as the PVA resin composition, polyvinyl alcohol more than 90 moles of % of use saponification degree (below, be called for short PVA) reason, in case be behind the high PVA tool dried coating film of saponification degree during film forming, still keep the cause of filminess even contact with water thereafter also not liquefy.For coated paper for printing is processed at last, the water-based liquid of necessary coating pigment constituent on the coating layer of PVA resin composition, but the coating layer of PVA resin composition, because of the high PVA of saponification degree is that the relation of principal component is owing to have resistance to water, so the direct water-based liquid of coating pigment constituent of this coating layer.In addition, coated paper for printing of the present invention, when the offset rotary printing is heated, the moisture Yin Gaore of coated paper and evaporating, coated paper shows the tendency of shrinking thereupon, and the coating layer of PVA resin composition, is heated in contrast and shows the tendency of stretching.Consider from the viewpoint that this contraction and stretching printing paper disappear, estimate to shrink and be inhibited as the total drying of coated paper.In addition, coated paper for printing of the present invention, there are 2 layers of clamping base paper in the coating layer of PVA resin composition, this formation prevents to be subjected to heat dissipation from the moisture of coated paper, its result is difficult to cause the drying contraction of coated paper, in other words, can suppress the increase of dry amount of contraction, reduce the generation of offset rotary roller wrinkle, reduce the inaccurate situation of registering.
Moreover, when the principal component of PVA resin composition uses saponification degree to be lower than the PVA of 90 moles of %, because its inadequate resistance to water, so when the water-based liquid of coating pigment constituent, the coating layer of PVA resin composition becomes inhomogeneous, and it is inaccurate to alleviate the offset rotary wrinkle or the cover that are coated with paper sometimes.
The PVA of Shi Yonging is (B) composition that resin is formed in the present invention, use polyacrylic acid (or its salt) and/or cellulose derivative (or its salt), as cellulose derivative, can use methylcellulose, hydroxypropyl methylcellulose, hydroxyethylcellulose, carboxymethyl cellulose etc.Moreover, as salt, can enumerate the salt of alkali such as sodium, potassium, ammonium.The PVA resin composition is by existing (B) composition on a small quantity, directly highly keep the water-based liquid of this constituent Type B viscosity, can suppress shear viscosity and reduce.Above-mentioned Type B viscosity height, the water-based liquid that shear viscosity is low, high-speed coating is on basic paper, when especially scraping coating, owing to improve and become operability, make the homogenising of filming, stop PVA exceedingly to soak into to basic paper inside, so the result helps the elimination or the inaccurate elimination of cover of offset rotary wrinkle, also helps to prevent the generation of bubble.
Moreover, not containing the water-based liquid that (B) composition is PVA, PVA exceedingly is not impregnated into and improves the concentration of water-based liquid under the degree of basic paper inside and when improving Type B viscosity, the shear viscosity of this water-based liquid excessively increases.Operation during high-speed coating already worsens, and it is even that crawling takes place easily.Therefore, use this aqueous solution often can not expect offset rotary wrinkle or the inaccurate elimination of cover.
(B) use level of composition in the PVA resin composition, per 100 weight portions (A) composition is pressed the scope of 0.1-10 weight portion and is selected, when being lower than 0.1 weight portion, though the PVA resin composition improves the Type B viscosity of water-based liquid under the degree that excessively is not impregnated into basic paper inside, but can not fully reduce the shear viscosity of water-based liquid, so can not obtain to film uniformly during high-speed coating.In addition, when (B) per 100 weight portions of the use level of composition (A) composition surpassed 10 weight portions, because of the reduction that is coated with adaptability can not obtain to film uniformly, the result can not suppress the generation of offset rotary wrinkle.
PVA resin composition of the present invention considers that from the viewpoint of the offset rotary wrinkle that more effectively suppresses coated paper preferred per 100 weight portions (B) composition cooperates the calcium carbonate of 50-200 weight portion with the total amount of (A) composition.Known use kaolin and even clay reduce the offset rotary wrinkle.But these are causing fine pigment cohesion (clay collision), are making the flatness of the coated paper of making that problem be arranged.In contrast to this, calcium carbonate is not only having superiority aspect the Combination of PVA and cost, nor the flatness of the coated paper of making is worsened.
At PVA is the calcium carbonate that cooperates during resin is formed, and not only carries out functionalization as the extender material of constituent, and during the water-based liquid of coating constituent, prevents that water-based liquid is impregnated into basic paper inside on basic paper.Even from this means the coating weight that reduces per unit area PVA resin composition, its coating layer is also brought into play the function of the present invention's attempt, so the use amount aspect that is engaged in the PVA that can save high price of calcium carbonate has advantage economically.Yet, the use level of calcium carbonate, when the total amount of per 100 weight portions (B) composition and (A) composition surpassed 200 weight portions, coating layer can not become continuous epithelium, and is bad owing to become the coating layer of porous of appearance such as intergranular part landfill PVA of calcium carbonate grain.And to suppress the generation of offset rotary wrinkle with such porous coating layers, then must cause coating layer thickening, might encourage the generation of bubble.In addition, the use level of calcium carbonate, when per 100 weight portions (B) composition when (A) the total amount of composition is lower than 50 weight portions, can not obtain the above-mentioned effect of expectation to calcium carbonate.
The averaged particles footpath of the calcium carbonate that the PVA resin composition cooperates is the scope of 0.1-3.0 μ m preferably.When the average grain diameter of calcium carbonate is lower than 0.1 μ m, because the viscosity increased of pigment slurry can not be disperseed when mixing with the PVA resin composition equably, for eliminate this dispersion uneven if reduce pigment slurry viscosity then the total concentration of water-based liquid also reduce, be difficult to obtain the coating weight of setting.When the average grain diameter of calcium carbonate surpassed 3.0 μ m, the flatness of coated film worsened.
In PVA resin composition of the present invention or its water-based liquid, can also add the various auxiliary agents of defoamer, preservative agent, colouring agent, fluorescent whitening agent etc., in addition, in the scope that does not influence effect of the present invention, per 100 weight portion PVA resin compositions for example add the aqueous resin dispersion of the water-soluble resin, Styrene-Butadiene latex etc. of starch, starch derivatives etc. by the following amount of 10 weight portions.
Coating weight when the water-based liquid that the water-based liquid of the two sided coatings PVA of basic paper resin composition or PVA resin composition and calcium carbonate are formed, the coating weight of PVA resin composition is pressed each face of dry weight benchmark at 0.5-5.0g/m
2Scope, preferably at 1.0-4.0g/m
2Scope select.Can certainly be coated with several times basic paper, but the above-mentioned coating weight of its situation is the accumulation coating weight.Once be coated with or divide to be coated with above-mentioned coating weight several times and to be lower than 0.5g/m no matter be
2The time, might be able to not reach the generation of the offset rotary wrinkle that prevents coated paper for printing and prevent the generation of bubble, surpass 5.0g/m
2The time, though can suppress the offset rotary wrinkle or cover is inaccurate, can not fully suppress the generation of bubble.
The coating of above-mentioned water-based liquid can be used apparatus for coating arbitrarily, for example can suitably use two roller gluing extrusion press, braking club gluing extrusion press, rod to be coated with machine, roll coater, doctor knife coater, thin film metrology gluing extrusion press, curtain type coating machine, die head sealing coating machine etc.Apparatus for coating among these is if use curtain type coating machine or die head sealing coating machine, and then water-based liquid is few to soaking into of basic paper inside, can form good filming on basic paper.In addition, the flatness that doctor knife coater is fewer to soaking into of basic paper inside except water-based liquid, film is good, but aspect high-speed coating, be suitable for the coating of the water-based liquid of PVA resin composition.That is, PVA resin composition of the present invention is owing to contain aforesaid (A) (B) two compositions, and its water-based liquid can adopt the scraper high-speed coating.
With regard to this postscript it, the above-mentioned curtain type coating machine, the die head sealing coating machine that in paper coating or film coated, adopt, be meant on basic paper appendix coating liquid film total amount, make coating fluid become the falling film of pre-metering or extrude the device of liquid film and so on, doctor knife coater is meant and once excessively carries attached coating fluid on basic paper, scrapes off coating fluid unnecessary on the basic paper with thin scraper then and makes it to become the device that both had been coated with quantitatively.
The body paper of making by the coating layer of establishing the PVA resin composition on the two sides of basic paper is because the coating layer of establishing the pigment constituent in the one side of its basic paper at least becomes single or multiple lift (being typically 2 layers) to can be made into coated paper for printing.The formation of this coating layer is the same with the coated paper for printing of making the past.Use contains the aqueous dispersions of the pigment constituent of pigment and bonding agent.As pigment, for example, can use more than a kind or 2 kinds of clay, kaolin, aluminium hydroxide, calcium carbonate, titanium dioxide, barium sulfate, zinc oxide, Chinese white, calcium sulfate, talcum, plastic pigment etc.
In addition, as bonding agent, for example, enumerate Styrene-Butadiene latex as the water dispersible bonding agent, methyl methacrylate butadi ene copolymer latex, the conjugated diene copolymer latex of styrene-methylmethacrylate copolymer latex etc., the acrylic acid series polymeric compounds latex of the polymer of acrylate and/or methacrylate or copolymer emulsion etc., the vinyl based polymer latex of ethene-vinyl acetate polymer emulsion etc., or with the monomer that contains functional groups such as carboxyl with the polymer of these various polymer emulsion modifications or copolymer emulsion etc.In addition, the synthetic resin that can enumerate polyvinyl alcohol, alkene-maleic anhydride resin etc. as water soluble adhesive is the cellulose derivative of the starch based, carboxymethyl cellulose, hydroxyethylcellulose etc. of bonding agent, oxidized starch, positive starch, esterification starch, dextrin etc.Can use more than a kind or 2 kinds of water dispersible and/or water soluble adhesive as bonding agent.
The amount of bonding agent composition in the pigment constituent, per 100 weight portion pigment are adjusted to about 20 weight portions usually.As described above, the coating layer of pigment constituent is no matter be that individual layer or multilayer all have no relations.Yet, no matter being individual layer or multilayer, coating layer all has no relations, when containing the pigment constituent of water soluble adhesive for forming this coating layer use, the preferred whole pigment composition of per 100 weight portion coating layers of the amount of the water soluble adhesive that coating layer is whole is below 2.5 weight portions.And, when coating layer is multilayer, forming the amount of the water soluble adhesive in the outermost coating layer, per 100 weight portion pigment compositions are preferably below 1.0 weight portions.
Therefore, the coated paper for printing of the present invention that finally makes, because printing ink is dry easily, so can print under low baking temperature, the result can more effectively prevent the generation of offset rotary wrinkle or the generation of bubble.
The pigment constituent can add the various auxiliary agents of dispersant, anti-hydrated agent, mobile modifier, colouring agent, fluorescent whitening agent etc. as required.
On body paper, during the aqueous dispersions of coating pigment constituent, can use and make the general apparatus for coating that uses of coated paper.For example, use doctor knife coater, Kohler coater, roll coater, reverse rollers coating machine, rod to be coated with machine, curtain formula coating machine, die head sealing coating machine, intaglio plate roll coater, roll coater, two roller gluing pressure coating machine, gate roller gluing extrusion press, the apparatus for coating of thin film metrology gluing extrusion press etc. adopts on-line mode or off-line mode to be coated with by single or multiple lift in the one side at least of body paper.The solid component concentration of the pigment constituent during coating generally can be selected in the scope of 40-75 weight %, but if considers the preferably scope of 45-70 weight % of operability.Coating weight by general each face of dry weight at 5-20g/m
2Scope select.
After the coating layer of pigment constituent formed, logical paper (paper injection) was processed into goods on calender usually.As the suitable various calenders that use metallic roll or the metal roller and the resilient roller formation of supercalender, gloss calender, soft small-sized calender etc. of the calender of this moment, can be online or off-line mode.
Coated paper for printing of the present invention, owing on the coating layer of PVA resin composition, form the coating layer of pigment constituent, therefore adopt the coating process of pigment constituent, partly lack smooth reduction printing precision in the fine pin hole of the painting layer surface generation of pigment constituent, the inking of printing sometimes.Such situation preferably cooperates wetting agent, preferably makes two sides cooperation wetting agent again at least one side of the coating layer of the coating layer of pigment constituent or PVA resin composition.
As wetting agent, for example, can use sulfuric acid ester type anion surfactant, sulfonic acid type anion surfactant, quaternary ammonium salt, amine derivative, amphoteric surfactant, polyoxyethylene is non-ionic surface active agent etc.Wherein, recommend to use sulfuric acid ester type anion surfactant, sulfonic acid type anion surfactant.
At PVA is that coating layer that resin is formed cooperates when moistening, and the per 100 weight account polyethylene alcohol of its use level are selected in the scope of 0.01-0.08 weight portion, preferably select in the scope of 0.02-0.06 weight portion.When this use level is lower than 0.01 weight portion, do not bring into play the additive effect of wetting agent, can not expect good inhibition quality.And, when the use level of wetting agent surpasses 0.08 weight portion,, can not prevent the generation of offset rotary wrinkle effectively owing to contain the barrier deterioration of polyvinyl alcohol layer.
On the other hand, when the coating layer of pigment constituent cooperated wetting agent, the per 100 weight portion pigment of its use level were selected in 0.01-0.15 weight portion scope, preferably selected in the scope of 0.03-0.08 weight portion.When this use level is lower than 0.01 weight portion, do not bring into play the additive effect of wetting agent, can not expect good printing quality.And, when the use level of wetting agent surpasses 0.15 weight portion, might cause the fault of accumulation etc. during the offset rotary printing.
Moreover, when two sides that contain polyvinyl alcohol layer and pigment application layer add wetting agent, preferably make to contain the wetting agent that the per 100 weight account polyethylene alcohol of polyvinyl alcohol layer contain the 0.01-0.04 weight portion, preferably make the per 100 weight portion pigment of pigment application layer contain the wetting agent of 0.01-0.06 weight portion.
[embodiment]
Below enumerate embodiment and specifically describe the present invention, but the present invention is not limited to these embodiment.Moreover " part " in embodiment and the comparative example and " % " be not if there be then expression " weight portion " and " weight % " respectively of specified otherwise.
[the rate of perviousness evaluation method of coated paper for printing and body paper]
Rate of perviousness M 65: according to the cup envelope method of JIS Z 0208 regulation, the anhydrous calcium chloride of the about 10g of dress in cup, temperature in the constant temperature and humidity device is remained on 20 ℃, relative humidity is remained on 65%, become every 1m by calculate 24 hours water vapours mass conversion through the quality increase of anhydrous calcium chloride in the cup after 6 hours by test portion
2Value.
Rate of perviousness M 100: according to the cup envelope method of JIS Z 0208 regulation, dress contains the water that 0.5 weight % polyacrylate is about 20g of super absorbent resin (trade name: ア ロ Application ザ Star プ RS-2/ East Asia is synthetic makes) in cup, the temperature in the constant temperature and humidity device remain on 40 ℃, relative humidity remain on 65%, by quality reduction through water in the cup after 6 hours, calculate 24 hours steam mass conversion by test portion and become every 1m
2Value.Moreover, add super absorbent resin, be in order to make the water-setting gel, to operate easily during rate of perviousness is measured, preventing from directly to stick on the test portion because of vibration water disperses.
[evaluation method of offset rotary wrinkle evaluation method, bubble, folding line and ink setting state]
Offset rotary press (the リ ソ of Mitsubishi PVC ア 403 L-BT 3-1100) with Mitsubishi Heavy Industries Ltd's system, two sides 4 look solid pattern are that 4 look solid pattern another sides are light pink combinations of patterns patterns with one side, print speed printing speed be the paper surface temperature of 800rpm, drying machine outlet be 95 ℃ (drying evaluations of printing ink) and 105 ℃ (offset rotary wrinkle, bubble, folding line evaluation), to drying machine by after the cooling water of logical 10 ℃ of chill roll print, implement continuously folding and process.
Moreover, supply with printing coated paper contain the scope that moisture all is 4.5-5%.
Offset rotary wrinkle evaluation criterion
Offset rotary wrinkle degree by following standard evaluation two sides 4 looks solid printing
◎: do not have the generation of offset rotary wrinkle
Zero: the generation of slight offset rotary wrinkle is arranged
△: the generation of obvious offset rotary wrinkle is arranged, but can anti-practical level
*: the generation of serious offset rotary wrinkle is arranged, and ripple such as when becoming binding is unsuitable for practical degree.
The bubble evaluation criterion
Bubble occurrence degree by following standard evaluation two sides 4 looks solid printing
◎: do not have the generation of bubble
Zero: have few bubble to take place on the printed article
*: gassing is unsuitable for practicality
The folding line evaluation criterion
The folding line that flows to folding by following standard evaluation two sides 4 looks solid printing.
◎: do not have the slight crack of ply of paper, outer folding line to deceive
Zero: ply of paper has the part (half is following) of slight crack, outer folding line white slightly
△: ply of paper has slight crack, and the part of outer folding line (half is following) is white
*: most ply of paper has slight crack, and outer folding line is roughly all white.
The drying regime evaluation criterion of printing ink
Press the drying regime of the printing ink of following standard evaluation two sides 4 chroman printings.
◎: printing does not have the wound (vestige) of wiping fully
Zero: printing has the wound (vestige) of slight wiping
△: printing has gently～wound (vestige) of moderate wiping
*: printing has the wound (vestige) of serious wiping
Embodiment 1
(manufacturing of bodystock paper)
Be modulated at 70 parts of LBKP (freeness 400ml/csf), in the pulp liquor of 30 parts of (freeness 480ml/csf) compositions of NBKP, interpolation makes paper ash be divided into 6.5% as the precipitated calcium carbonate of filler, again with respect to the paper pulp solid constituent add respectively as in add the AKD cementing agent (trade name: the waste river of サ イ ズ パ イ Application K-902/ chemistry system) 0.1% copy paper, uses pair roller gluing extrusion press to carry out gluing with the oxidized starch (trade name: エ one ス prince A/ コ one Application ス one チ system) of pre-gelatinization continuously again and pressurize that (oxidized starch coating weight two sides is 1.0g/m of jelly with the paper stock of aluminum sulfate 0.5%
2) handle and to make basic paper.
In addition, polyvinyl alcohol (trade name: Port バ one Le 105/ Kuraray system) 100 parts with respect to the degree of polymerization 500,98 moles of % of saponification degree, respectively in 1 part ratio cooperate polyacrylic acid (trade name: Ha イ PVC ス ワ コ-105/ and the pure medicine system of light), by 3 parts ratios (solid constituent contrast) cooperation methylcellulose (trade name: Ha イ ソ ト ロ one ズ 60SH4000/ SHIN-ETSU HANTOTAI chemical industry system), make the PVA resin composition.This resin combination is dispersed in the water, adds 0.06 part defoamer (trade name: SN デ Off オ one マ 777/ サ Application ノ プ コ system), be heated the water-based liquid that gelatinization makes the PVA resin composition of concentration 15% again by per 100 parts of resin combinations.Use doctor knife coater on aforementioned basic paper, press coating speed 700m/ branch, each face carries out the water-based liquid that two sided coatings makes, and making each face of dried coating weight is 2.0g/m
2, dry back obtains bodystock paper.The weight of gained bodystock paper is 69g/m
2
(modulation of the aqueous dispersions of pigment constituent)
(trade name: ミ ラ Network リ プ ス PG/ エ Application ゲ Le Ha one De system) pigment dispersing of 60 parts of compositions makes graining paste in water 40 parts of powdered whitings (trade name: FMT 90/ Off ァ イ マ テ Star Network system), engineering level kaolin with this (コ one レ ス) dispersion machine of Cray.In this slurry, add the oxidized starch (trade name: エ one ス A/ is aforementioned) 2.0 parts (solid constituent) of Styrene-Butadiene latex (trade name: PA-9000/ Japan エ イ ア Application De エ Le system) 10 parts (solid constituent), pre-gelatinization and other auxiliary agents, modulate the pigment application layer coating fluid of final solid component concentration 64%.
(manufacturing of coated paper for printing)
Making each face dry weight with the above-mentioned pigment constituent aqueous dispersions of each face coating of doctor knife coater on the body paper of above-mentioned explanation is 18g/m
2, drying makes two sided coatings paper.Then, make this each face of two sided coatings paper contact 2 times with metallic roll on the soft calender of heating that metallic roll (130 ℃ of roll temperatures) and resin roll are formed and lead to paper, making density is 1.2g/m
3, make coated paper for printing.
Estimate body paper and coated paper moisture permeability M separately
65, rate of perviousness M
100, offset rotary wrinkle, the bubble of coated paper, the drying regime and the folding line of printing ink.Show the result in table 1.
Embodiment 2
In the water-based liquid of the PVA resin composition that in the bodystock paper of embodiment 1 is made, uses, mixing pre-pneumatolytic in the ratio (solid constituent contrast) that with respect to 100 parts of PVA resin compositions is 60 parts is that (trade name: FMT90/ Off ァ イ マ テ Star Network system), modulation PVA resin composition and powdered whiting are the water-based liquid of the concentration 21% of principal component for the powdered whiting of averaged particles footpath 0.6 μ m of aqueous dispersions.Except being coated on, the water-based liquid of gained make every of dried coating weight be 2.7g/m on the basic paper
2Other make coated paper for printing similarly to Example 1 beyond making bodystock paper.
Estimate each rate of perviousness M of body paper and coated paper
65, rate of perviousness M
100, offset rotary wrinkle, the bubble of coated paper, the drying regime and the folding line of printing ink.Show the result in table 1.
Embodiment 3
In the water-based liquid of the PVA resin composition that in the bodystock paper of embodiment 1 is made, uses, mix the powdered whiting of averaged particles footpath 0.6 μ m of pre-XianCheng aqueous dispersions (trade name: FMT90/ Off ァ イ マ テ Star Network system), modulation PVA resin composition and powdered whiting are the water-based liquid of the concentration 28% of principal component with respect to 100 parts of PVA resin compositions in 150 parts ratios (solid constituent contrast).Except being coated on, the water-based liquid of gained make every of dried coating weight be 3.0g/m on the basic paper
2Make beyond the bodystock paper, other make coated paper for printing similarly to Example 1.
Estimate body paper and coated paper rate of perviousness M separately
65, rate of perviousness M
100, offset rotary wrinkle, the bubble of coated paper, the drying regime and the folding line of printing ink.Show the result in table 1.
Embodiment 4
Except making polyvinyl alcohol (trade name: Port バ one Le 110/ Kuraray system) 100 parts with respect to the degree of polymerization 1000,98 moles of % of saponification degree, add with in the NaOH and the PVA resin composition that uses in the PVA resin composition replacement embodiment 1 bodystock paper manufacturing that constitutes of the corrective of polyacrylic acid (trade name: Ha イ PVC ス コ 1 is aforementioned) 0.2 part (solid constituent is to this), to make the concentration of the water-based liquid of PVA resin composition again be 10%, being coated with on basic paper and making every of dried coating weight is 1.0g/m
2Make beyond the bodystock paper, other make coated paper for printing similarly to Example 1.
Estimate each rate of perviousness M of body paper and coated paper
65, rate of perviousness M
100, offset rotary wrinkle, the bubble of coated paper, the drying regime and the folding line of printing ink, show the result in table 1.
Embodiment 5
Except 100 parts of polyvinyl alcohol (trade name: Port バ one Le 105/ is aforementioned) that make with respect to the degree of polymerization 500,98 moles of % of saponification degree, the water-based liquid that the PVA resin composition that uses in the PVA resin composition replacement embodiment 1 bodystock paper manufacturing of 8 parts of (solid constituent contrast) formations of interpolation methylcellulose (trade name: Ha イ メ ト ロ one ズ 60SH4000 is aforementioned) makes, be coated on the basic paper, dried coating weight face is 3.0g/m
2Make beyond the bodystock paper, other make coated paper for printing similarly to Example 1.
Estimate each rate of perviousness M of the bodystock paper of gained and coated paper
65, rate of perviousness M
100, offset rotary wrinkle, the bubble of coated paper, the drying regime and the folding line of printing ink.Show the result in table 1.
Embodiment 6
Except in the manufacturing of the coated paper for printing of embodiment 3, the use level of the oxidized starch in the pigment constituent that is coated with on the change body paper, be 0.5 part (solid constituent) in addition, other make the printing coating machine similarly to Example 3.
Estimate each rate of perviousness M of bodystock paper and coated paper
65, rate of perviousness M
100, offset rotary wrinkle, the bubble of coated paper, the drying regime and the folding line of printing ink.Show the result in table 1.
Embodiment 7
Make with respect to the degree of polymerization 500,100 parts of the polyvinyl alcohol of 98 moles of % of saponification degree (trade name: Port バ one Le 105/ is aforementioned), sodium salt (the trade name: the PVA resin composition that the bodystock paper of the PVA resin composition replacement embodiment 1 SGAG ガ system HE No.2/ first industrial pharmacy system) uses in making that cooperates carboxymethyl cellulose by 1.5 parts (solid constituent contrast), the powdered whiting (trade name: FMT90/ is aforementioned) that mixes the averaged particles footpath 0.6 μ m that becomes aqueous dispersions in advance again with respect to 100 parts of ratios (solid constituent contrast) of PVA resin combination in 167 parts, the water-based liquid of the concentration 30.5% that modulation PVA resin composition and powdered whiting are formed.The water-based liquid that coating makes on basic paper makes every of dried coating weight be 2.5g/m
2, make bodystock paper.Except in the manufacturing of the copperplate paper of embodiment 1, with the above-mentioned coated paper that makes, the use level of the oxidized starch in the pigment constituent of coating is altered to 0.5 part (solid constituent) in addition, other make coated paper for printing similarly to Example 1.
Estimate each rate of perviousness M of gained body paper and coated paper
65, rate of perviousness M
100, offset rotary wrinkle, the bubble of coated paper, the drying regime and the folding line of printing ink, show the result in table 1.
Embodiment 8
In the manufacturing of the body paper of embodiment 1, at LBK P70 part (freeness 400ml/csf), in the pulp liquor of 30 parts of (freeness 480ml/csf) compositions of NBKP, interpolation makes paper ash be divided into 6.5% as the precipitated calcium carbonate of filler, add the AKD cementing agent (trade name: the waste river of サ イ ズ パ イ Application K-902/ chemistry system) 0.1% of adding jelly in the conduct respectively with respect to paper pulp again, aluminum sulfate 0.5% and reduction fiber combining agent (trade name: ス Le ゾ one Le VL/BASF corporate system) 0.6%, the furnishing paper stock, copy paper, continuously with the oxidized starch (trade name: エ one ス A/ is aforementioned) of pre-gelatinization, (oxidized starch coating weight two sides is 1.0g/m to use two roller gluing extrusion press to carry out the gluing pressurization again
2) handle, except using the basic paper that makes like this, other make coated paper for printing similarly to Example 1.
Estimate each rate of perviousness M of gained body paper and coated paper
65, rate of perviousness M
100, offset rotary wrinkle, the bubble of coated paper, the drying regime and the folding line of printing ink.Show the result in table 1.
Comparative example 1
In the manufacturing except the bodystock paper that uses embodiment, mismatch beyond the water-based liquid of the PVA resin composition that polyacrylic acid and methylcellulose modulate, other make coated paper for printing similarly to Example 1.
Estimate each rate of perviousness M of gained body paper and coated paper
65, rate of perviousness M
100, offset rotary wrinkle, the bubble of coated paper, the drying regime and the folding line of printing ink.Show the result in table 1.
Comparative example 2
Among the embodiment 1, (trade name: Port バ one Le 405/ Kuraray system), other make coated paper for printing similarly to Example 1 except the polyvinyl alcohol that polyvinyl alcohol changed into the degree of polymerization 500,81.5 moles of % of saponification degree.
Estimate each moisture permeability M of gained body paper and coated paper
65, rate of perviousness M
100, offset rotary wrinkle, the bubble of coated paper, the drying regime and the folding line of printing ink.Show the result in table 1.
Comparative example 3
Among the embodiment, except saving the coating to the PVA resin composition on base material two sides, other make coated paper for printing similarly to Example 1.
Estimate each rate of perviousness M of body paper (basic paper) and coated paper
65, rate of perviousness M
100, offset rotary wrinkle, the bubble of coated paper, the drying regime and the folding line of printing ink.Show the result in table 1.
Comparative example 4
Among the embodiment 1, be that every of the dried coating weight of water-based liquid of principal component is 7g/m except making the PVA resin composition
2In addition, other make coated paper for printing similarly to Example 1.
Estimate each rate of perviousness M of gained body paper and coated paper
65, rate of perviousness M
100, offset rotary wrinkle, the bubble of coated paper, the drying regime and the folding line of printing ink.Show the result in table 1.
Comparative example 5
In the manufacturing of the bodystock paper of embodiment 3, except coating PVA resin composition on basic paper is the water-based liquid of principal component with powdered whiting, making every of dried coating weight is 0.4g/m
2Make beyond the bodystock paper, other make coated paper for printing similarly to Example 3.
Estimate each rate of perviousness M of gained body paper and coated paper
65, rate of perviousness M
100, offset rotary wrinkle, the bubble of coated paper, the drying regime and the folding line of printing ink.Show the result in table 1.
Comparative example 6
Among the embodiment 1, except the use level of the methylcellulose in the PVA resin composition of basic paper two sided coatings being increased to 12 parts (solid constituent contrasts), other make coated paper for printing similarly to Example 1.
Estimate gained body paper and the rate of perviousness M that is coated with each
65, rate of perviousness M
100, offset rotary wrinkle, the bubble of coated paper, the drying regime and the folding line of printing ink.Show the result in table 1.
[table 1]
| The rate of perviousness M of body paper 65????(g/m 2· ????24h) | The rate of perviousness M of body paper 100????(g/m 2· ????24h) | Coated paper rate of perviousness M 65????(g/m 2· ????24h) | Coated paper rate of perviousness M 100????(g/m 2· ????24h) | The offset rotary wrinkle | Bubble | The drying regime of printing ink | Folding line | |
| Embodiment 1 | ????220 | ????1750 | ????230 | ????1700 | ????◎ | ??◎ | ??○ | ??◎ |
| Embodiment 2 | ????220 | ????1600 | ????210 | ????1500 | ????◎ | ??◎ | ??○ | ??○ |
| Embodiment 3 | ????200 | ????1500 | ????210 | ????1450 | ????◎ | ??○ | ??○ | ??○ |
| Embodiment 4 | ????290 | ????2500 | ????310 | ????2000 | ????◎ | ??◎ | ??○ | ??○ |
| Embodiment 5 | ????240 | ????2000 | ????230 | ????1900 | ????◎ | ??◎ | ??○ | ??◎ |
| Embodiment 6 | ????200 | ????1500 | ????250 | ????1500 | ????◎ | ??◎ | ??◎ | ??○ |
| Embodiment 7 | ????200 | ????1600 | ????250 | ????1500 | ????◎ | ??◎ | ??◎ | ??○ |
| Embodiment 8 | ????200 | ????1400 | ????240 | ????1550 | ????◎ | ??◎ | ??○ | ??◎ |
| Comparative example 1 | ????600 | ????2200 | ????550 | ????2100 | ????× | ??◎ | ??○ | ??◎ |
| Comparative example 2 | ????1050 | ????2800 | ????1050 | ????2000 | ????× | ??◎ | ??○ | ??◎ |
| Comparative example 3 | ????1100 | ????3000 | ????1300 | ????2100 | ????× | ??◎ | ??○ | ??× |
| Comparative example 4 | ????50 | ????850 | ????20 | ????800 | ????◎ | ??× | ??× | ??◎ |
| Comparative example 5 | ????620 | ????3000 | ????570 | ????1800 | ????× | ??◎ | ??○ | ??△ |
| Comparative example 6 | ????1100 | ????3000 | ????670 | ????2000 | ????× | ??◎ | ??○ | ??○ |
[effect of invention]
Result by table 1 expression can find out, the coated paper for printing that embodiments of the invention obtain, owing to have the coating layer of PVA resin composition, not only can significantly reduce the generation of offset rotary wrinkle during the offset rotary rotary printing, and the generation that alleviates bubble, folding line etc. dry printing ink fully again.
Claims (4)
1. coated paper for printing is established in the coated paper for printing of coating layer that pigment and bonding agent are principal component in the one side at least of body paper, it is characterized in that rate of perviousness M
65Be 500g/m
224h is following, rate of perviousness M
100Be 1000g/m
2More than the 24h.
(wherein, so-called rate of perviousness M
65Mean cup envelope method, in cup, adorn the anhydrous calcium chloride of about 10g, the temperature in the constant temperature and humidity device is remained on 20 ℃, relative humidity is remained on the moisture permeability of the test portion of calculating by the vapor transfer rate that measures after 65%, 6 hour according to JIS Z 0208 regulation.Rate of perviousness M
100Mean cup envelope method according to JIS Z 0208 regulation, to contain 0.5 weight % polyacrylate be the water of about 20g of super absorbent resin to dress in cup, temperature in the constant temperature and humidity device is remained on 40 ℃, relative humidity remained on the moisture permeability of the test portion of being calculated by the vapor transfer rate of metering after 65%, 6 hour.)
2. the described coated paper for printing of claim 1, when it is characterized in that aforesaid coating layer contains water soluble adhesive, the pigment that contains in the per 100 weight portion coating layers of the amount of water soluble adhesive is below 2.5 weight portions.
3. coated paper for printing, it is characterized in that by by (A): (B)=100: the weight ratio of 0.1-10 contains the above polyvinyl alcohol of 90 moles of % of (A) saponification degree and (B) the water-based liquid of the PVA resin composition of polyacrylic acid (or its salt) and/or cellulose derivative (or its salt), drying is carried out on the two sides that is coated on basic paper, and the dry weight that makes every is 0.5-5.0g/m
2, the rate of perviousness M of modulation afore mentioned rules
65Be 500g/m
2Below the 24h, the rate of perviousness M of same afore mentioned rules
100Be 1000g/m
2The body paper that 24h is above is established pigment and bonding agent is the coating layer of principal component in the one side at least of gained body paper.
4. coated paper for printing, it is characterized in that by by (A): weight ratio (B)=100: 0.1～10 contains the above polyvinyl alcohol of 90 moles of % of (A) saponification degree and (B) the water-based liquid of the PVA resin composition of polyacrylic acid (or its salt) and/or cellulose derivative (or its salt), and drying is carried out on the two sides that is coated on basic paper, and to make every dry weight be 0.5-5.0g/m
2, be the coating layer of principal component, the rate of perviousness M of afore mentioned rules what the one side at least of gained body paper was established pigment and bonding agent
65Be 500g/m
2Below the 24h, the rate of perviousness M of same afore mentioned rules
100Be 1000g/m
2More than the 24h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031079962A CN100354473C (en) | 2003-03-28 | 2003-03-28 | Coating paper for printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031079962A CN100354473C (en) | 2003-03-28 | 2003-03-28 | Coating paper for printing |
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|---|---|
| CN1534137A true CN1534137A (en) | 2004-10-06 |
| CN100354473C CN100354473C (en) | 2007-12-12 |
Family
ID=34283064
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210398B (en) * | 2007-12-24 | 2010-06-02 | 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 |
| CN101821454B (en) * | 2007-10-12 | 2012-09-12 | 花王株式会社 | Method for production of coated paper |
| CN113195829A (en) * | 2018-12-05 | 2021-07-30 | 大王制纸株式会社 | Coated paper for tableware |
| CN113710457A (en) * | 2019-05-20 | 2021-11-26 | 株式会社Tbm | Printing paper and method for producing printing paper |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3523944B2 (en) * | 1995-09-13 | 2004-04-26 | 三井化学株式会社 | Aqueous paper coating composition and coated paper coated with the composition |
| JPH10298897A (en) * | 1997-04-25 | 1998-11-10 | Unitika Chem Co Ltd | Coating agent for paper |
| JP3543620B2 (en) * | 1998-06-05 | 2004-07-14 | 王子製紙株式会社 | Coated paper for web offset printing |
-
2003
- 2003-03-28 CN CNB031079962A patent/CN100354473C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821454B (en) * | 2007-10-12 | 2012-09-12 | 花王株式会社 | Method for production of coated paper |
| CN101210398B (en) * | 2007-12-24 | 2010-06-02 | 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 |
| CN113195829A (en) * | 2018-12-05 | 2021-07-30 | 大王制纸株式会社 | Coated paper for tableware |
| CN113195829B (en) * | 2018-12-05 | 2023-01-13 | 大王制纸株式会社 | Coated paper for tableware |
| CN113710457A (en) * | 2019-05-20 | 2021-11-26 | 株式会社Tbm | Printing paper and method for producing printing paper |
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