CN105951531A - Coated white board paper - Google Patents
Coated white board paper Download PDFInfo
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- CN105951531A CN105951531A CN201610425234.XA CN201610425234A CN105951531A CN 105951531 A CN105951531 A CN 105951531A CN 201610425234 A CN201610425234 A CN 201610425234A CN 105951531 A CN105951531 A CN 105951531A
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- China
- Prior art keywords
- calcium carbonate
- layer
- surface layer
- paper
- whiteness
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/385—Oxides, hydroxides or carbonates
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- Paper (AREA)
Abstract
The invention provides white board paper with the white paper appearance free of remarkable hickie. As calcium carbonate with the mass larger than or equal to 3% and smaller than 10% of the surface-layer paper pulp mass is added into a surface layer, the white board paper of the multilayer papermaking structure in which dark gray caused by waste paper closer to the inner side than a lining layer is evenly hidden can be obtained.
Description
The application be filing date on July 20th, 2012, Application No. 201210260036.4,
The divisional application of the application of invention entitled " coated manila ".
Technical field
The present invention relates to a kind of coated manila, the especially coating of sandwich layer use secondary stock white
Paperboard, more specifically, relates to a kind of having the appearance painting without the blank sheet of paper outward appearance of obvious white macula
Cloth white board.
Background technology
White board can print, and uses as package paper.Therefore, white board is accomplished by
Printing adaptability energy.It addition, while white board is white, do not have white macula to become important yet
Problem.White board described herein is that weight per square meter is at 150g/m2Above ground paper,
Typically it is made up of the multiple structure of 3 layers～9 layers.Such as, it is referred to as face by what copy paper produced
Layer, lining, sandwich layer, the multilamellar white board of bottom.Composition such as Fig. 1 of 1 this white board of example
Shown in.Fig. 1 is the sectional view of white board.In Fig. 1,101 refer to white board, and 110 refer to surface layer,
120 refer to lining, and 130 refer to sandwich layer, and 140 refer to bottom.Additionally, in Fig. 1 the ratio of each layer is not
Necessarily it is directly proportional to actual (real) thickness.Specifically, in FIG, outermost surface layer is constituted
(110) bleached pulp that whiteness is high is generally used.The lining of adjacent surface layer (110) inner side
The bottom (140) of layer (120) and composition internal layer generally uses the secondary stock that whiteness is higher.
And the sandwich layer (130) constituting la m generally uses secondary stock.General sandwich layer (130)
The secondary stock of middle use is dimmed.In order to hide the lead of sandwich layer, surface layer and lining
High whiteness layer would generally be manufactured paper with pulp into.Utilize this composition, seek the same of waste paper recycling
Time, it is also possible to obtain the white board of white.But, even with surface layer or lining, also without
Method fully hides the lead of sandwich layer, there is the problem producing white macula in appearance.
Therefore, disclose by regulation surface layer, the weight per square meter scope of lining, and
Difference between surface layer whiteness and lining whiteness, thus reduce the method (example of white board white macula
As, patent documentation 1).
To give printing adaptability energy, raising paper surface whiteness, to improve paper surface
For the purpose of white macula, produce at least one side at white board and be provided with the coating of pigment application layer
White board.As this coated manila, it has been disclosed that use at pigment application layer and there is height
The method (such as, patent documentation 2) of the inorganic pigments such as the titanium dioxide of hiding.But,
Higher-priced titanium dioxide must be used in a large number, the problem that production cost uprises occurs.Additionally,
Because white board weight per square meter is big, so the difference of part weight per square meter is the easiest
Become big, when using the so-called smoothing coating machine such as scraper or rod coating machine to be coated,
Part coating weight is easily caused to change.Therefore, even if arranging and containing titanium dioxide and have high hidden
The pigment application layer of Tibetan property, the situation that the apparent white macula of coated manila cannot eliminate also can
Occur.
[patent documentation 1] Japanese Unexamined Patent Publication 2005-298998 publication
[patent documentation 2] Japanese Unexamined Patent Publication 2006-328574 publication
Summary of the invention
It is an object of the invention to provide the coating that a kind of white macula in appearance making surface reduces white
Paperboard.
In order to solve above-mentioned problem, the present invention uses following composition.That is, the coating of the present invention
White board be the multiple structure at least with surface layer, sandwich layer and bottom white board at least
Arranging the coated manila of the pigment application layer containing inorganic pigment on one face, its feature exists
Containing calcium carbonate as inorganic pigment in, surface layer, the calcium carbonate content of surface layer is relative to surface layer
Paper pulp amount be 3 mass %～20 mass %, pigment application layer is arranged on the surface of surface layer, make
For the inorganic pigment contained in pigment application layer, containing ground calcium carbonate.According to this structure
Become, it is possible to obtain the probability that paper powder comes off from paper surface when printing is little, in appearance without white
The coated manila of speckle.
Additionally, about the coated manila of the present invention, the content of the calcium carbonate of surface layer can be
Relative to more than 3 mass % of the paper pulp amount of surface layer, less than 10 mass %.According to this structure
Become, it is possible to obtain the painting that paper powder reduces further from the probability that paper surface comes off when printing
Cloth white board.
Additionally, about the coated manila of the present invention, calcium carbonate contained in surface layer is permissible
It it is BET specific surface area 6.0m2/ more than g, less than 10.0m2The precipitated calcium carbonate of/g.According to
This composition, it is possible to obtain paper powder comes off few, in appearance without white macula from paper surface when printing
Coated manila.
Additionally, about the coated manila of the present invention, the calcium carbonate contained in surface layer can be
Heavy carbon containing the particle below particle diameter 2 μm more than 70 mass %～less than 95 mass %
Acid calcium.According to this composition, it is possible to obtain whiteness is high, and in appearance without the coating of white macula
White board.
Additionally, about the coated manila of the present invention, surface layer and the face being arranged at facing surface
More than 60 mass % of whole inorganic pigments contained in material coating layer can be calcium carbonate.Root
According to this composition, can be while reducing cost, it is thus achieved that whiteness height, outward appearance are without white macula
Coated manila.
According to the present invention it is possible to obtain the probability that during printing, paper powder comes off from paper surface is little,
In appearance without the coated manila of white macula.Thus, such as, coating blank can so be improved
The aesthetic property of paper, meanwhile, even if the coating manufacturing the setting coating layer based on pigment is white
Paperboard, also can improve white macula in appearance.Additionally, when manufacturing the coated manila of the present invention,
Owing to pH during copy paper is in neutral or alkalescence scope, so waste paper can be used in a large number.That is,
In the neutralized paper of paper, newspaper is carried out, owing to the calcium carbonate used in it is copied in acidity
Paper dissolves, thus is restricted in substantial amounts of waste paper uses.If but as the present invention one
Sample, copy paper in the range of neutrality or alkalescence, the most no longer limited by this type of, can be used in a large number
Waste paper.
Detailed description of the invention
Embodiments of the present invention explained in detail below.
The coated manila of the present invention is by suitable by surface layer/lining/sandwich layer/bottom of layers below
The multiple structure that sequence copy paper is constituted, wherein, gives up containing oleo stock, the bleaching of high whiteness in surface layer
Paper pulp；Containing the secondary stock lower than paper pulp whiteness contained in surface layer in lining and bottom,
Containing the secondary stock lower than paper pulp whiteness contained in lining and bottom in sandwich layer.Wherein,
Although being provided with lining to hide the lead of sandwich layer, but by making every square metre of surface layer
Weight become big grade and process so that only rely on surface layer when just can fully ensure that hiding, it is possible to
To manufacture paper with pulp into the structure being not provided with lining.The coated manila of the 1 example present invention is as shown in Figure 2.
Fig. 2 is the sectional view of the coated manila of the present invention.In fig. 2,10 is white board, 1
For surface layer, 2 is lining, and 3 is sandwich layer, and 4 is bottom, and 5 is pigment application layer.Additionally,
In Fig. 2, the ratio of each layer is not necessarily directly proportional to actual (real) thickness.Enumerate a concrete structure
Example, the composition of coated manila is, the weight of every square metre of sandwich layer is
50g/m2～500g/m2, whiteness is 35%～60%；The weight of every square metre of lining is
20g/m2～80g/m2, whiteness is 55%～75%；The weight of every square metre of surface layer is
15g/m2～60g/m2, whiteness is 70%～85%.The composition of bottom can be according to coating blank
The use variation of paper but it also may manufacture paper with pulp into same composition with lining or surface layer.Pigment is coated with
Layer of cloth is at least provided with in the surface of surface layer.Due to coated manila be widely used in book front cover,
Paper-made vessel, therefore, its weight of every square metre covers 150g/m2～600g/m2Big model
Enclose.When changing the weight of every square metre of coated manila, from effectively utilizing waste paper, fall
The angle of low manufacturing cost is set out, can mainly select to change the sandwich layer number of plies, every square metre
Weight.Additionally, according to purposes, it is desirable to face bottom is indiscriminate coating blank on whiteness
Paper, in this case, in order to make surface layer and bottom have the whiteness of same degree, adjust
The pulp varieties used in whole each layer raw material and the weight of every square metre of each layer.Such as, exist
Surface layer and bottom use same materials paper pulp, when obtaining face bottom without the white board of whiteness difference,
Because the hiding of the lower sandwich layer of whiteness must be improved, so every square metre of bottom
The weight weight than every square metre of surface layer is big.Or, it is also possible to sandwich layer and bottom it
Between arrange, with lining, there is the bottom lining layer of identical composition, manufacture paper with pulp into surface layer/lining/sandwich layer/end liner
The structure of layer/bottom.Additionally, in the purposes not requiring white board one side whiteness, bottom
In the raw material identical with lining can also be used to constitute.Further, not only in any of the above-described structure
The surface of surface layer, and may also set up pigment coated on the surface of bottom.It is surface layer
With arrange on two surfaces of bottom pigment coated in the case of, by changing the face of a side and another
It is poor that the coating amount in the face of one side can arrange table bottom on whiteness.These are configured to root
Suitable change is carried out according to the purposes of coated manila.
The whiteness of coated manila and apparent white macula are according to its purposes, and what it improved must
The property wanted becomes higher.When for hard-cover paper-made vessel, it is necessary to high for whiteness, and regard
The coated manila that in feel, white macula is few.When adjusting whiteness and apparent white macula, permissible
The weight of be mainly adjusted by surface layer every square metre realizes.By increasing often putting down of surface layer
The weight of side's rice, makes whiteness improve, and white macula is improved, and but then, can produce
Can not effectively utilize the problem that waste paper and cost also cannot be cut down.As the ratio of surface layer,
The weight being desirable to realize every square metre is little, and whiteness is high simultaneously, in order to without the whitest
Speckle and hiding is high.
It is known that for the hiding improving paper while maintaining whiteness, as face
Filler contained in Ceng, uses Kaolin, Talcum, calcium carbonate, titanium etc..Kaolin is hidden
Property high but whiteness not as good as calcium carbonate, and cost is the most expensive.Talcum whiteness not as good as calcium carbonate,
Hiding is the poorest.Titanium is best in terms of whiteness, hiding, but on copy paper production line
Yield rate is low and price height is that it applies difficult point.From the perspective of whiteness, hiding,
Calcium carbonate be low price easy-to-use in add filler.
But, in the coated manila in past, it is rarely employed as the filler contained by surface layer
Calcium carbonate.Particularly to manufacture the coating with pigment application layer based on Kaolin white
During paperboard, percarbonic acid calcium is never used to add filler as interior in the surface layer of coated manila.
Can enumerate as reason, owing to the hiding of the pigment application layer based on Kaolin is high,
So surface layer does not contain the necessity of calcium carbonate.Furthermore it is possible to enumerate, when in surface layer
During containing calcium carbonate, it is easily reduced the acid rosin applying glue all the time used as sizing agent
The degree of sizing of agent, it is necessary to use neutral rosin sizing agent.Further, it is also possible to enumerate, with height
Ridge soil, Talcum are compared, and calcium carbonate itself the most easily causes yield rate reduction etc..Additionally, one
As think, utilize waste paper lining plain boiled water blackout, be the most easily affected by, though
Calcium carbonate is used, especially with the heavy carbonic acid of hiding Yu Talcum same degree on surface layer
Calcium, can not improve whiteness white macula.Despite these results of study, but make people surprised
, in the present invention, by the calcium carbonate of the performance by having whiteness and hiding excellence
Add in surface layer, whiteness and white macula can be improved.
The coated manila of the present invention, it is characterised in that containing calcium carbonate as nothing in surface layer
Machine pigment, the content of this calcium carbonate is 3 mass %～20 mass of the paper pulp amount relative to surface layer
%.When the content of calcium carbonate is less than 3 mass % relative to the paper pulp amount of surface layer, lack by carbonic acid
The raising of the whiteness that calcium causes, the improvement of covering power, it is impossible to improve apparent white macula.
On the other hand, when the content of calcium carbonate is more than 20 mass % relative to the paper pulp amount of surface layer, though
So improving along with whiteness, covering power is improved, and makes apparent white macula significantly improve, but
It is likely to occur paper powder when printing to come off from paper surface.In the present invention, can make contained by surface layer
Calcium carbonate content be more than 3 mass %, less than 10 mass %, can obtain further
The coated manila that paper powder comes off is there is not from paper surface during printing.
As the calcium carbonate used in the present invention, preferably ground calcium carbonate and/or precipitated calcium carbonate.
Ground calcium carbonate is that limestone uses dry or wet pulverization process obtain.Precipitated calcium carbonate
It is that limestone is sintered into Calx in kiln etc. for the time being, adds water digestion, be passed through carbon dioxide
Carburizing reagent is utilized to be synthesized into.Although ground calcium carbonate is ratio in terms of whiteness and hiding
Precipitated calcium carbonate is poor, but compared with Kaolin and Talcum, its whiteness is high, outside also improving
White macula in sight.It addition, although ground calcium carbonate is the filler that production line abrasiveness is high, but
Use waterproof pulverization and make particle diameter diminish to improve abrasiveness, in relatively slow the copying of copy paper speed
During paper, can make full use of ground calcium carbonate can add filler in conduct.Precipitated calcium carbonate with
Ground calcium carbonate is compared, owing to having higher whiteness and hiding, and production line abrasiveness
The lowest, it is possible to utilize precipitated calcium carbonate to add filler as interior aptly.
In the coated manila of the present invention, calcium carbonate contained in surface layer can use BET method
Specific surface area 6.0m measured2/ more than g, less than 10.0m2The precipitated calcium carbonate of/g.Lightweight carbon
The BET specific surface area of acid calcium is less than 6.0m2During/g, the effect improving white macula in appearance has change
Little tendency.BET specific surface area is at 10.0m2Although the precipitated calcium carbonate white macula of/more than g
Improve effect notable, but owing to the particle diameter of precipitated calcium carbonate attenuates, ply of paper intensity also reduce,
Come off so being likely to result in paper powder during printing from paper surface.
In the coated manila of the present invention, calcium carbonate contained in surface layer can be containing 70 matter
Amount more than %～the ground calcium carbonate less than the particle below 95 mass % particle diameter 2 μm.Particle diameter
When the ratio of the ground calcium carbonate below 2 μm is less than 70 mass %, it is possible that whiteness
Improve and reduce, can not fully improve white macula.And its ratio more than 95 mass % time, although
The improvement of white macula is good, but owing to particle diameter attenuates, ply of paper intensity also reduces, it is possible that make
When becoming printing, paper powder comes off from paper surface.It addition, it is as mentioned earlier, as contained in surface layer
Ground calcium carbonate, it is contemplated that the abrasiveness of production line, is preferably used and was processed by waterproof pulverization
Ground calcium carbonate.Because the ground calcium carbonate that waterproof pulverization processed processes than dry pulverization process
The ground calcium carbonate particle size distribution crossed more they tends to sharply, so being easily processed, also can improve life
Produce the abrasiveness of line.
In the coated manila of the present invention, at the pigment application layer of surface layer and surface layer surface configuration
In all contain calcium carbonate.Beyond surface layer and pigment application layer each can be containing calcium carbonate
Inorganic pigment, but weight of calcium carbonate is preferably with respect to contained in surface layer and pigment application layer
All more than inorganic pigment 60 mass %.By this composition, can inexpensively produce whiteness
Height and the coated manila without white macula.
There is no particular limitation for the starting pulps used in the surface layer of the present invention.Such as, source
In bleaching leaf wood sulfur that natural pulp is main body such as the wood fiber, phloem fiber, phloem fiber
Hydrochlorate wood pulp (L-BKP) can use as main constituent.The concrete example of wood pulp in addition
There are bleached softwood wood sulfate wood pulp (N-BKP), bleached softwood wood sulphite wood pulp
(N-BSP), bleaching leaf wood sulphite wood pulp (L-BSP) etc..It addition, machinery paper
Starch (GP), chemithermomechanical pulps (CTMP), de inked pulp (DIP) also can root
The mixing of arbitrary proportion is carried out according to purposes.Although could be used that secondary stock, but in order to avoid drawing
Play whiteness to reduce, it is necessary to use the secondary stock etc. of high whiteness high-quality system, or use on a small quantity.
In the present invention, such as, can be containing bleaching leaf woods more than 70 mass % in whole paper pulp
Sulfate wood pulp (L-BKP), such as content are 75～98 mass %.Additionally, the filter of paper pulp
Aqueous (Canadian Standard Freeness, CSF) preferably adjusts to 250～600cc scopes.
Using the secondary stock lower than surface layer paper pulp whiteness in lining, sandwich layer uses whiteness more
Low secondary stock, but the drainability of paper pulp has no particular limits.It addition, especially with regard to
Filler adds, as long as add in the range of ply of paper intensity not reducing, the most especially
Restriction.The composition of bottom can carry out suitable change according to the purposes of coated manila,
Identical composition can be had with lining or surface layer.
Do not damaging in the range of effect of the present invention, can in surface layer, lining, sandwich layer and bottom
With use flocculation aid, paper strength reinforcing agent, colour taste dyestuff, colour taste pigment,
Sizing agent.Additionally, in order to improve operability during copy paper, use finished product that can be suitable
Rate improves agent, drainability improves agent, defoamer.The most in the present invention, phase can be added
The above-mentioned additive of 0.001～5 mass % for the paper pulp amount of surface layer.Specifically, as
Flocculation aid, can be enumerated as aluminum sulfate, the most such as, can add relative to surface layer
0.01～2 mass % of paper pulp amount.As paper strength reinforcing agent, poly-third can be enumerated as
Acrylamide, the most such as, can add 0.01～2 matter of the paper pulp amount relative to surface layer
Amount %.As sizing agent, neutral rosin can be enumerated as, such as, can add relative to surface layer
0.01～2 mass % of paper pulp amount.
Copy paper prepares surface layer, lining, sandwich layer and bottom respectively, then manufactures paper with pulp, and produces and constitutes
The white board of coated manila body paper.Now, preferably in neutral or alkalescence scope, such as
Copy paper under the conditions of pH6.8～8.5.Copy paper method can use and copy known to fourdrinier wire formula, cylinder etc.
Paper method.To give the purposes such as this white board printing adaptability, it is provided with pigment application layer.
Pigment application layer is by coating, is dried the coating being made up of pigment and binding agent and is formed.
As the inorganic pigment in pigment application layer, containing ground calcium carbonate.Although additionally,
Can be combined as using the public affairs such as clay, precipitated calcium carbonate, titanium dioxide, plastic pigment
Know public pigment, but mainly preferred use ground calcium carbonate.Even if pigment application layer is coated with
The solid state component of material is more than 64 mass %, in order to make good fluidity, and the product of suppression striped
Raw, in pigment, ground calcium carbonate can at least use more than 60 mass %, is preferably used 65～95
Quality %.Ground calcium carbonate used herein, the heavy obtained owing to using waterproof pulverization to process
It is more sharp-pointed that calcium carbonate processes, than dry pulverization process, the ground calcium carbonate particle size distribution obtained, and easily locates
Reason, therefore preferably.
As the sticker in pigment application layer, it is enumerated as styrenebutadiene copolymer rubber
(SBR), MMB methyl methacrylate butadiene copolymer rubber equiconjugate dienes polyrubber,
The celluloses such as polyvinyl alcohol, Oxytarch, carboxymethyl cellulose, hydroxyethyl cellulose derive
Thing, can individually or two or more is used in mixed way.The consumption of sticker is such as relative to 100
Weight portion pigment can be 5～30 weight portions.
It addition, as required, the coating used in pigment application layer can also suitably make
With the pH adjusting agents such as dispersant, caustic soda, ammonia, defoamer, illuminating colour pigment,
Hydrophober, flow ability modifying agent etc..
Constitute the pigment application layer on the white board of body paper to be usually by lower coating layer, upper coating
2 layers of formation of layer but it also may be monolayer, it is also possible to be more than 3 layers.Pigment application layer
Coating weight is based on every layer of average dry mass, generally at 5g/m2～15g/m2Scope.Such as,
When being set to the pigment application layer of 2 layers, the coating weight of lower coating layer is based on dry mass
At 5g/m2～15g/m2In the range of implement coating, the coating weight of upper coating layer exists
5g/m2～13g/m2In the range of implement coating.Additionally, in order to prevent at white board bottom
Surface crimps, it is also possible to arrange based on dry mass scope at 1g/m215g/m2List
Layer coating layer, this coating layer can be pigment application layer, it is also possible to be free from pigment main
The coating layer being made up of binding agent.When particularly bottom copy paper becomes the layer containing waste paper, in order to
Reach to hide the impurity of the waste paper origin contained in this layer, and prevent its purpose come off,
Can be at the surface configuration coating layer of bottom.
As formed coating layer coating machine do not limit, can appropriately combined use the most empty
Gas knife type coater, knife type coater, rod coater (rod coater), curtain coating
The roll coaters etc. such as machine and door roll coater (gate roll coater), screening machine.
When being provided with the coating layer of more than bilayer, form device as lower coating and bar type is preferably used
Coating machine, forms device as upper coating and rod coater, knife type coater is preferably used.
Can be coated respectively, such as, constitute undermost coating layer and use rod coater,
The second layer coating layer constituting intermediate layer uses rod coater, constitutes outermost third layer
Coating layer uses knife type coater.
Embodiment
It is exemplified below embodiment, the present invention is further illustrated, but the present invention works as
So it is not limited in these.It addition, in following embodiment and comparative example, so-called part
And % represents solid state component mass parts, solid state component quality % respectively.
Each evaluation methodology is implemented in following manner.
1) mensuration of whiteness
In accordance with ISO 2470:1999Paper, board and pulps-Measurement of
Diffuse blue reflectance factor (ISO brightness) measures what facing surface was arranged
Pigment application layer.
2) mensuration of precipitated calcium carbonate BET specific surface area
Nitrogen adsorption method (Micromeritics company system, TriStar II 3020) is used to measure.
3) mensuration of wet method ground calcium carbonate particle diameter
(LA-920/ hole field makes institute to use laser beam diffraction/scattering formula particle size distribution device
System) measure mass accumulation % below particle diameter 2 μm.
4) white macula
By in the pigment application aspect that range estimation uses 5 level evaluation facing surfaces to arrange
White macula.In 5 ranks, the good situation not observing white macula completely is evaluated as 5, in vain
The most serious situation of speckle is evaluated as 1.In 5 ranks, it is evaluated as 3～5, it is determined that for closing
Lattice, are ranks no problem in practice；It is evaluated as 1 or 2, due to white macula
Serious it is determined that be defective.
5) paper powder during printing comes off evaluation
Use the made RI of bright making to print testing machine, use 0.4cc Toyo Ink Co., Ltd.
SMX-25 tusche processed, under 60rpm, the pigment application aspect in facing surface setting is enterprising
Row printing, the degree that comes off of visual assessment paper powder.Evaluate and carry out by 4 ranks.4 ranks
In, it is evaluated as 4 by not observing the good situation that paper powder comes off completely；There is a large amount of paper powder
Come off is evaluated as 1.In 4 ranks, be evaluated as 2～4, it is determined that for qualified, be
Rank no problem in practice；It is evaluated as 1, owing to occurring a large amount of paper powder to come off
It is determined that be defective.
Embodiment
The making of coating layer coating under ＜ >
By Kaolin (KEIMIN company hydrasperse) 20 parts, wet method heavy carbonic acid
Calcium (Imerys Minerals Japan K.K. carbital 60) 80 parts, styrene butadiene
Polyrubber 15 parts, organic phosphate starch 3 parts are dispersed in water, and obtain solid component concentration
The coating of the lower coating layer of 64 mass %.
The making of ＜ upper coating layer coating >
By Kaolin (CADAM company system, Amazon SB) 30 parts, wet method heavy carbon
Acid calcium (Imerys Minerals Japan K.K. carbital 90) 60 parts, titanium dioxide
(DuPont Co., Ltd. RPS-Vantage) 10 parts, styrene butadiene polymerizations rubber
15 parts are dispersed in water, and obtain the coating of the upper coating layer of solid component concentration 64 mass %.
(embodiment 1)
Hardwood pulp (L-BKP) 90 parts and 10 parts of needlebush oar (N-BKP) are scattered in
In water, adjusting and obtain stream slurry to CSF350cc, in stream slurry, mixture content is relative to paper pulp
Precipitated calcium carbonate (the trade name: TP121-6S/ Okutama Kogyo Co., Ltd. BET of amount 4%
Specific surface area 7.0m2/ g) obtain the raw material of surface layer.Then in water, disperse the deinking do not pulled an oar
Bleached waste paper slurry obtains the raw material of lining and bottom.Then deinking is disperseed to give up magazine paper in water
Slurry obtains the raw material of sandwich layer.Use fourdrinier paper machine under the conditions of pH7.7, utilize various former
Material is manufactured paper with pulp into and is made up of surface layer/lining/sandwich layer/bottom 4 layers, and weight per square meter is 310g/m2
White board.The weight per square meter of the surface layer of the white board obtained is 25g/m2, whiteness
It is 78%；The weight per square meter of lining is 40g/m2, whiteness is 66%；Sandwich layer every
Weight per square meter is 190g/m2, whiteness is 55%；The weight per square meter of bottom is
55g/m2, whiteness is 66%.Increase it addition, add respectively in surface layer as paper strength
The polyacrylamide of strong agent, aluminum sulfate as flocculation aid, as the neutral rosin of sizing agent,
Wherein, the addition of polyacrylamide is 0.2% of the paper pulp amount relative to surface layer, aluminum sulfate
For 0.2% of the paper pulp amount relative to surface layer, neutral rosin is the paper pulp amount relative to surface layer
0.3%.Additionally, with the addition of as paper strength reinforcing agent in lining, sandwich layer, bottom
Starch, its addition is 0.2% relative to each layer paper pulp amount.Obtain carrying out operating as above
White board surface layer surface on be provided with constitute lower floor pigment application layer, this pigment be coated with
Layer of cloth is to use the painting of rod coating machine to plant coating layer coating to make solid state component be 10g/m2Go forward side by side
Row is dried and is formed.Then, on the pigment application layer surface configuration constituting lower floor is constituted
The pigment application layer of layer, thus obtain coated manila, wherein, the pigment constituting upper strata is coated with
Layer of cloth is to use the upper coating layer coating of knife type coater coating to make solid state component be 10g/m2And
It is dried and is formed.
(embodiment 2)
By the precipitated calcium carbonate of mixing in white board face stock, (trade name: TP121-6S/ is difficult to understand
Duo Mo Industrial Co., Ltd BET specific surface area 7.0m2/ g) add to relative to paper pulp amount
9%, in addition, by embodiment 1 with method copy paper, obtain coated manila.
(embodiment 3)
The calcium carbonate of mixing in white board face stock is changed to precipitated calcium carbonate (preproduction A
BET specific surface area 9.5m2/ g), in addition, by embodiment 1 with method copy paper, it is coated with
Cloth white board.
(embodiment 4)
The calcium carbonate of mixing in white board face stock is changed to precipitated calcium carbonate (preproduction B
BET specific surface area 6.0m2/ g), its addition is 9% relative to paper pulp amount, except this it
Outward, by embodiment 1 with method copy paper, coated manila is obtained.
(embodiment 5)
By the precipitated calcium carbonate (trade name: TP 121-6S/ is difficult to understand of mixing in white board face stock
Duo Mo Industrial Co., Ltd BET specific surface area 7.0m2/ g) combined amount be added to relatively
In the 10.5% of paper pulp amount, in addition, by embodiment 1 with method copy paper, obtain being coated with blank
Paper.
(embodiment 6)
The calcium carbonate of mixing in white board face stock is changed to precipitated calcium carbonate (preproduction C
BET specific surface area 5.0m2/ g), its addition is 9% relative to paper pulp amount, except this it
Outward, by embodiment 1 with method copy paper, coated manila is obtained.
(embodiment 7)
The calcium carbonate of mixing in white board face stock is changed to precipitated calcium carbonate (preproduction D
BET specific surface area 11.0m2/ g), its addition is 9% relative to paper pulp amount, except this it
Outward, by embodiment 1 with method copy paper, coated manila is obtained.
(embodiment 8)
The calcium carbonate of mixing in white board face stock is changed to precipitated calcium carbonate (preproduction C
BET specific surface area 5.0m2/ g), its addition is 3% relative to paper pulp amount, except this it
Outward, by embodiment 1 with method copy paper, coated manila is obtained.
(embodiment 9)
The calcium carbonate of mixing in white board face stock is changed to precipitated calcium carbonate (preproduction D
BET specific surface area 11.0m2/ g), its addition is 20% relative to paper pulp amount, except this
Outside, by embodiment 1 with method copy paper, obtain coated manila.
(embodiment 10)
The surface of the coated manila bottom obtained in embodiment 1, uses knife type coater
Painting plants coating layer coating makes solid state component be 10g/m2And be dried arrange pigment be coated with
Layer of cloth, the two-layer obtaining surface layer and bottom all has the coated manila of pigment application layer.
(embodiment 11)
Use each raw material in embodiment 1, use fourdrinier paper machine manufacture paper with pulp into by surface layer/sandwich layer/
The weight per square meter that bottom 3 layers is constituted is 350g/m2White board, every square of its surface layer
Meter Chong Liang is 55g/m2, the weight per square meter of sandwich layer is 220g/m2, every square metre of bottom
Weight is 75g/m2, in addition, by embodiment 1 with method copy paper, obtain coated manila.
(embodiment 12)
The surface of the coated manila bottom obtained in embodiment 11, passes through knife type coater
Painting plants coating layer coating makes solid state component be 10g/m2And be dried arrange pigment be coated with
Layer of cloth, the two-layer obtaining surface layer and bottom all has the coated manila of pigment application layer.
(embodiment 13)
By high-quality secondary stock 60 parts, hardwood pulp (L-BKP) 30 parts and softwood pulp
(N-BKP) 10 parts are dispersed in water, and adjust and obtain flowing slurry to CSF350cc, in stream slurry
Mixture content be waterproof pulverization ground calcium carbonate relative to paper pulp amount 7% (trade name:
Particle below the μm of carbital90/Imerys Minerals Japan K.K. granulation footpath 2 contains ratio
Example is 90 mass %) obtain the raw material of surface layer.Then in water, disperse the deinking drift do not pulled an oar
White pulp from ONP obtains the raw material of lining.Then the deinking magazine paper pulp that gives up is disperseed to obtain in water
Raw material to sandwich layer.Then the deinking do not pulled an oar bleaching pulp from ONP is disperseed to obtain in water
The raw material of bottom.Use fourdrinier paper machine under the conditions of pH7.5, utilize various raw material to manufacture paper with pulp
Become to be made up of surface layer/lining/sandwich layer/bottom 4 layers, weight per square meter is 260g/m2Blank
Paper.The weight per square meter of the surface layer of the white board obtained is 30g/m2, whiteness is 78%；
The weight per square meter of lining is 45g/m2, whiteness is 60%；Every weight per square meter of sandwich layer
Amount is 140g/m2, whiteness is 50%；The weight per square meter of bottom is 45g/m2, white
Degree is 60%.It addition, add the polypropylene as paper strength reinforcing agent in surface layer respectively
Amide, aluminum sulfate as flocculation aid, as the neutral rosin of sizing agent, wherein, poly-third
The addition of acrylamide is 0.2% of the paper pulp amount relative to surface layer, and aluminum sulfate is relative to face
The 0.3% of the paper pulp amount of layer, neutral rosin is 0.3% of the paper pulp amount relative to surface layer.Additionally,
With the addition of the starch as paper strength reinforcing agent in lining, sandwich layer, bottom, it adds
Amount is for relative to the 0.2% of each layer paper pulp amount.Carrying out operating as above the face of the white board obtained
On the surface of layer, being provided with the pigment application layer constituting lower floor, this pigment application layer is to use
The painting of rod coating machine plants coating layer coating makes solid state component be 10g/m2And be dried and shape
Become.Then, the pigment on upper strata is constituted in the pigment application layer surface configuration constituting lower floor
Coating layer, thus obtain coated manila, wherein, the pigment application layer constituting upper strata is to adopt
Solid state component is made to be 10g/m with the upper coating layer coating of knife type coater coating2And be dried
And formed.
(embodiment 14)
By in white board face stock mixing waterproof pulverization ground calcium carbonate (trade name:
Particle below the μm of carbital90/Imerys Minerals Japan K.K. granulation footpath 2 contains ratio
Example is 90 mass %) it is added to 9% relative to paper pulp amount, in addition, by embodiment
13, with method copy paper, obtain coated manila.
(embodiment 15)
By in white board face stock mixing waterproof pulverization ground calcium carbonate (trade name:
Particle below the μm of carbital90/Imerys Minerals Japan K.K. granulation footpath 2 contains ratio
Example is 90 mass %) it is added to 4% relative to paper pulp amount, in addition, by embodiment
13, with method copy paper, obtain coated manila.
(embodiment 16)
The calcium carbonate of mixing in white board face stock is changed to waterproof pulverization ground calcium carbonate
(the particle content ratio below preproduction X particle diameter 2 μm is 75 mass %), except this it
Outward, by embodiment 13 with method copy paper, coated manila is obtained.
(embodiment 17)
The calcium carbonate of mixing in white board face stock is changed to waterproof pulverization ground calcium carbonate
(the particle content ratio below preproduction Y particle diameter 2 μm is 93 mass %), except this it
Outward, by embodiment 13 with method copy paper, coated manila is obtained.
(embodiment 18)
By in white board face stock mixing waterproof pulverization ground calcium carbonate (trade name:
Particle below the μm of carbital90/Imerys Minerals Japan K.K. granulation footpath 2 contains ratio
Example is 90 mass %) it is added to 11% relative to paper pulp amount, in addition, by embodiment
13, with method copy paper, obtain coated manila
(embodiment 19)
The calcium carbonate of mixing in white board face stock is changed to waterproof pulverization ground calcium carbonate
(the particle content ratio below preproduction Z particle diameter 2 μm is 65 mass %), it adds
Amount is for relative to the 3% of paper pulp amount, in addition, by embodiment 13 with method copy paper, obtaining
Coated manila.
(embodiment 20)
By in white board face stock mixing waterproof pulverization ground calcium carbonate (trade name:
Particle below the μm of carbital90/Imerys Minerals Japan K.K. granulation footpath 2 contains ratio
Example is 90 mass %) it is added to 20% relative to paper pulp amount, in addition, by embodiment
13, with method copy paper, obtain coated manila.
(comparative example 1)
By the precipitated calcium carbonate (trade name: TP 121-6S/ is difficult to understand of mixing in white board face stock
Duo Mo Industrial Co., Ltd BET specific surface area 7.0m2/ g) it is changed to Talcum, it adds
Amount is for relative to the 10% of paper pulp amount, in addition, by embodiment 1 with method copy paper, obtaining
Coated manila.
(comparative example 2)
By the precipitated calcium carbonate (trade name: TP 121-6S/ is difficult to understand of mixing in white board face stock
Duo Mo Industrial Co., Ltd BET specific surface area 7.0m2/ g) combined amount be added to relatively
In the 2% of paper pulp amount, in addition, by embodiment 1 with method copy paper, coated manila is obtained.
(comparative example 3)
By in white board face stock mixing waterproof pulverization ground calcium carbonate (trade name:
Particle below the μm of carbital90/Imerys Minerals Japan K.K. granulation footpath 2 contains ratio
Example is 90 mass %) it is added to 2% relative to paper pulp amount, in addition, by embodiment
13, with method copy paper, obtain coated manila.
(comparative example 4)
By the precipitated calcium carbonate (trade name: TP 121-6S/ is difficult to understand of mixing in white board face stock
Duo Mo Industrial Co., Ltd BET specific surface area 7.0m2/ g) combined amount be added to relatively
In the 25% of paper pulp amount, in addition, by embodiment 1 with method copy paper, obtain being coated with blank
Paper.
(comparative example 5)
By in white board face stock mixing waterproof pulverization ground calcium carbonate (trade name:
Particle below the μm of carbital90/Imerys Minerals Japan K.K. granulation footpath 2 contains ratio
Example is 90 mass %) it is added to 25% relative to paper pulp amount, in addition, by embodiment
13, with method copy paper, obtain coated manila.
The white board obtained by each embodiment and comparative example or the evaluation result of coated manila are such as
Shown in table 1.Can clearly learn from table 1, embodiment 1～20 coated manila obtained,
Any one is all difficult to observe white macula, and visual observation is good, also can meet paper during printing
Powder comes off requirement.
The coated manila obtained by embodiment 8, due to the lightweight carbonic acid added in surface layer
Calcium is fewer, it addition, the precipitated calcium carbonate BET specific surface area used is the least, so and its
He compares embodiment, and its whiteness is low, and white macula is serious in appearance, but still is to apply in reality
In no problem rank.
The coated manila obtained by embodiment 9, due to the lightweight carbonic acid added in surface layer
Calcium is the most, it addition, the precipitated calcium carbonate BET specific surface area used is also big, so and its
He compares embodiment, and paper powder obscission during its printing is serious, but still is to apply in reality
In no problem rank.
The coated manila obtained by embodiment 19, due to the heavy carbonic acid added in surface layer
Calcium is fewer, it addition, the particle content ratio below ground calcium carbonate particle diameter 2 μm used
The lowest, so compared with other embodiments, its whiteness is low, white macula is serious in appearance, but
It is still the most no problem rank.
The coated manila obtained by embodiment 20, due to the heavy carbonic acid added in surface layer
Calcium is the most, it addition, the particle content ratio below ground calcium carbonate particle diameter 2 μm used
The highest, so compared with other embodiments, paper powder obscission during its printing is serious, but
It is still the most no problem rank.
The coated manila obtained by comparative example 1, due to inorganic as contain in surface layer
Pigment employs Talcum, so in the ratio of addition, its whiteness is low, and white macula is serious,
Actual application can not be met.
The coated manila obtained by comparative example 2 and comparative example 3, due to add to surface layer
The amount of calcium carbonate is very few, so the disguise of surface layer can not be met, causes its whiteness low,
And white macula is serious, it is impossible to meet reality application.
The coated manila obtained by comparative example 4 and comparative example 5, due to add to surface layer
The amount of calcium carbonate is too much, so causing paper powder during printing to come off substantially, it is impossible to meet reality
Application.
Claims (8)
1. a coated manila, described coated manila at least have surface layer, lining,
It is provided with containing inorganic pigment at least one side of the white board of the multiple structure of sandwich layer and bottom
Pigment application layer, it is characterised in that
Described surface layer contains calcium carbonate as inorganic pigment；
The content of the calcium carbonate of described surface layer is 3 mass %～20 matter relative to the paper pulp amount of surface layer
Amount %；
Described pigment application layer is arranged on the surface of surface layer；
As the inorganic pigment contained in described pigment application layer, containing ground calcium carbonate.
2. coated manila as claimed in claim 1, it is characterised in that described surface layer
The content of calcium carbonate relative to the paper pulp amount of surface layer be more than 3 mass %, less than 10 mass %.
3. coated manila as claimed in claim 1 or 2, it is characterised in that described
The calcium carbonate contained in surface layer is BET specific surface area 6.0m2/ more than g, less than 10.0m2/g
Precipitated calcium carbonate.
4. coated manila as claimed in claim 1 or 2, it is characterised in that described
The calcium carbonate contained in surface layer is containing more than 70 mass %, less than the particle diameter of 95 mass %
The ground calcium carbonate of the particle below 2 μm.
5. coated manila as claimed in claim 1 or 2, it is characterised in that described
The calcium carbonate contained in surface layer is the ground calcium carbonate processed through waterproof pulverization.
6. the coated manila as according to any one of Claims 1 to 5, it is characterised in that
At described surface layer and being arranged in the pigment application layer of facing surface, contained is whole inorganic
60 mass % of pigment are above calcium carbonate.
7. the coated manila as according to any one of claim 1～6, it is characterised in that
Containing than low the giving up of paper pulp whiteness contained in described surface layer in described lining and described bottom
Paper pulp, containing than paper pulp whiteness contained in described lining and described bottom in described sandwich layer
Low secondary stock.
8. the coated manila as according to any one of claim 1～7, it is characterised in that
The weight of every square metre of described surface layer is 15g/m2～60g/m2, whiteness is
70%～85%,
The weight of every square metre of described lining is 20g/m2～80g/m2, whiteness is
55%～75%,
The weight of every square metre of described sandwich layer is 50g/m2～500g/m2, whiteness is
35%～60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610425234.XA CN105951531B (en) | 2012-07-20 | 2012-07-20 | Coated manila |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610425234.XA CN105951531B (en) | 2012-07-20 | 2012-07-20 | Coated manila |
| CN201210260036.4A CN103572666B (en) | 2012-07-20 | 2012-07-20 | Coated manila |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210260036.4A Division CN103572666B (en) | 2012-07-20 | 2012-07-20 | Coated manila |
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| Publication Number | Publication Date |
|---|---|
| CN105951531A true CN105951531A (en) | 2016-09-21 |
| CN105951531B CN105951531B (en) | 2019-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210260036.4A Active CN103572666B (en) | 2012-07-20 | 2012-07-20 | Coated manila |
| CN201610425234.XA Active CN105951531B (en) | 2012-07-20 | 2012-07-20 | Coated manila |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210260036.4A Active CN103572666B (en) | 2012-07-20 | 2012-07-20 | Coated manila |
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| Country | Link |
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| CN (2) | CN103572666B (en) |
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| CN109024092A (en) * | 2018-09-20 | 2018-12-18 | 苗广厚 | A kind of high-intensitive high moisture-proof regeneration white board and production technology |
| CN112681004A (en) * | 2020-12-30 | 2021-04-20 | 天能电池(芜湖)有限公司 | Novel super-permeability coated paper |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104313936B (en) * | 2014-08-26 | 2016-08-24 | 淄博欧木特种纸业有限公司 | Composite decoration paper of wood-based plate and preparation method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103572666B (en) | 2017-12-12 |
| CN103572666A (en) | 2014-02-12 |
| CN105951531B (en) | 2019-06-18 |
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