CN105951531B - Coated manila - Google Patents
Coated manila Download PDFInfo
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- CN105951531B CN105951531B CN201610425234.XA CN201610425234A CN105951531B CN 105951531 B CN105951531 B CN 105951531B CN 201610425234 A CN201610425234 A CN 201610425234A CN 105951531 B CN105951531 B CN 105951531B
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- 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
Abstract
The present invention provides a kind of white board with the blank sheet of paper appearance without significant hickie.It is 3 mass % or more, less than the calcium carbonate of 10 mass % by being added into surface layer relative to surface layer paper pulp amount, it is hereby achieved that uniformly hiding as the white board than dimmed multilayer copy paper structure caused by waste paper of the lining closer to inside.
Description
The application be the applying date be on July 20th, 2012, application No. is 201210260036.4, entitled " coating
The divisional application of the application of white board ".
Technical field
The present invention relates to the coated manilas that a kind of coated manila, especially sandwich layer use secondary stock, more specifically,
It is related to a kind of coated manila of blank sheet of paper appearance with appearance without obvious hickie.
Background technique
White board can print, and use as package paper.Therefore, printing adaptability energy is just needed on white board.In addition,
While white board is white, also become important project without hickie.White board described herein is that weight per square meter exists
150g/m2Above ground paper is generally made of 3 layers~9 layers of multilayered structure.For example, by copy paper produce be referred to as surface layer,
Lining, sandwich layer, bottom multilayer white board.The composition of 1 this white board is as shown in Figure 1.Fig. 1 is the sectional view of white board.
101 refer to white board in Fig. 1, and 110 refer to surface layer, and 120 refer to lining, and 130 refer to sandwich layer, and 140 refer to bottom.In addition, in Fig. 1 each layer ratio
It is not necessarily directly proportional to actual (real) thickness.Specifically, it is high usually using whiteness to constitute outermost surface layer (110) in Fig. 1
Bleached pulp.Lining (120) on the inside of adjacent surface layer (110) and constitute the usually used whiteness of bottom (140) of internal layer compared with
High secondary stock.And the sandwich layer (130) of la m is constituted usually using secondary stock.Waste paper used in general sandwich layer (130)
Slurry is dimmed.In order to hide the dark gray of sandwich layer, surface layer and lining would generally manufacture paper with pulp into high whiteness layer.Utilize this structure
At, seek waste paper recycle while, can also obtain white white board.However, even if using surface layer or lining, also without
Method sufficiently hides the dark gray of sandwich layer, there are problems that generating hickie in appearance.
Therefore, it discloses white by regulation surface layer, the weight per square meter range of lining and surface layer whiteness and lining
Difference between coloration, to reduce the method (for example, patent document 1) of white board hickie.
For the purpose of the hickie for assigning printing adaptability energy, raising paper surface whiteness, improvement paper surface, produce
The coated manila of pigment application layer is provided in at least one side of white board.As this coated manila, it has been disclosed that
Pigment application layer uses the method (for example, patent document 2) of the inorganic pigments such as the titanium dioxide with high hiding.However, must
Higher-priced titanium dioxide must be largely used, the problem of production cost is got higher occurs.In addition, because white board weight per square meter
Greatly, it so the difference of part weight per square meter also tends to get bigger, is applied using the so-called smoothing such as scraper or rod coater
When cloth machine is coated, the variation of part coating weight is easily caused.Therefore, even if being arranged containing titanium dioxide and with high hiding
The case where pigment application layer, the apparent hickie of coated manila can not be eliminated, can also occur.
[patent document 1] Japanese Unexamined Patent Publication 2005-298998 bulletin
[patent document 2] Japanese Unexamined Patent Publication 2006-328574 bulletin
Summary of the invention
The purpose of the present invention is to provide a kind of coated manilas of reduction of hickie in appearance for making surface.
In order to solve the above problems, the present invention uses following composition.That is, coated manila of the invention is that at least have
Pigment application layer containing inorganic pigment is set at least one face of the white board of the multilayered structure of surface layer, sandwich layer and bottom
Coated manila, which is characterized in that surface layer contains calcium carbonate as inorganic pigment, and the calcium carbonate content of surface layer is relative to surface layer
Paper pulp amount is the 3 mass % of mass %~20, and the surface of surface layer is arranged in pigment application layer, as what is contained in pigment application layer
Inorganic pigment contains powdered whiting.According to this composition, a possibility that paper powder falls off from paper surface in printing can be obtained
It is small, in appearance without the coated manila of hickie.
In addition, the content of the calcium carbonate of surface layer can be the paper pulp relative to surface layer about coated manila of the invention
Amount 3 mass % or more, less than 10 mass %.According to this composition, it can obtain what the paper powder in printing fell off from paper surface
The coated manila that possibility further decreases.
In addition, calcium carbonate contained in surface layer can be BET specific surface area about coated manila of the invention
6.0m2/ g or more, it is less than 10.0m2The precipitated calcium carbonate of/g.According to this composition, paper powder can be obtained in printing from paper surface
It falls off few, in appearance without the coated manila of hickie.
In addition, the calcium carbonate contained in surface layer can be containing 70 mass % or more about coated manila of the invention
The powdered whiting of~2 μm of particles below of partial size less than 95 mass %.According to this composition, whiteness height can be obtained,
And in appearance without the coated manila of hickie.
In addition, about coated manila of the invention, surface layer and it is set to contained in the pigment application layer of facing surface
The 60 mass % or more of whole inorganic pigments can be calcium carbonate.According to this composition, can obtain while cost is reduced
Whiteness height, coated manila of the appearance without hickie.
According to the present invention it is possible to obtain a possibility that paper powder falls off from paper surface when printing is small, in appearance without the painting of hickie
Cloth white board.As a result, for example, can be improved the aesthetics of coated manila in this way, meanwhile, even if manufacture is arranged based on pigment
The coated manila of the coating layer of body can also improve hickie in appearance.In addition, when manufacturing coated manila of the invention, by
PH when copy paper is in neutral or alkalescent range, so waste paper can be used largely.That is, the neutralized paperization in paper, newspaper carries out
In, since wherein used calcium carbonate dissolves in acid copy paper, thus it is restricted in a large amount of waste paper.But such as
For fruit as the present invention, the copy paper within the scope of neutral or alkalescent then no longer can largely be used waste paper by such limitation.
Specific embodiment
Embodiments of the present invention explained in detail below.
Coated manila of the invention is that following layers is more by surface layer/lining/sandwich layer/bottom sequence copy paper composition
Layer structure, wherein starched in surface layer containing magma, high whiteness bleached waste paper；Containing than contained in surface layer in lining and bottom
Paper pulp whiteness low secondary stock contains the secondary stock lower than paper pulp whiteness contained in lining and bottom in sandwich layer.Wherein,
Although the processing such as being become larger by making every square metre of weight of surface layer, being made to hide the dark gray of sandwich layer provided with lining
When must only rely on surface layer just and can fully ensure that hiding, the structure for being not provided with lining can also be manufactured paper with pulp into.1 coating of the invention
White board is as shown in Figure 2.Fig. 2 is the sectional view of coated manila of the invention.In Fig. 2,10 be white board, and 1 is surface layer, 2
It is sandwich layer for lining, 3,4 be bottom, and 5 be pigment application layer.In addition, the ratio of each layer is not necessarily with actual (real) thickness at just in Fig. 2
Than.A specific structure example is enumerated, the composition of coated manila is that every square metre of weight 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 be 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 root
According to the use variation of coated manila, but same composition can also be manufactured paper with pulp into lining or surface layer.Pigment application layer is at least set
It is placed in the surface of surface layer.Since coated manila is widely used in cover, the paper-made vessel of book, every square metre of weight
Amount covers 150g/m2~600g/m2It is a wide range of.When changing every square metre of weight of coated manila, from effective use
Waste paper, the angle for reducing manufacturing cost are set out, and can mainly select to change the sandwich layer number of plies, every square metre of weight.In addition, according to
Purposes, it is expected that face bottom indiscriminate coated manila on whiteness, in this case, in order to make surface layer and bottom that there is phase
With the whiteness of degree, every square metre of weight of pulp varieties used in each layer raw material and each layer is adjusted.For example, in face
Layer and bottom use same materials paper pulp, when obtaining white board of the face bottom without whiteness difference, because whiteness must be improved more
The hiding of low sandwich layer, so every square metre of bottom of weight is bigger than every square metre of weight of surface layer.Alternatively, can also
With between sandwich layer and bottom be arranged with lining with identical composition bottom lining layer, manufacture paper with pulp into surface layer/lining/sandwich layer/bottom lining layer/
The structure of bottom.In addition, also can be used on the way, in bottom in the use for not requiring white board single side whiteness identical with lining
Raw material is constituted.Also, not only on the surface of the surface layer of any of the above-described structure, but also it may also set up pigment painting on the surface of bottom
Layer.Be to be arranged on two surfaces of surface layer and bottom it is pigment coated in the case where, pass through the face in the face and another party that change a side
Coating amount table bottom can be arranged on whiteness poor.These are configured to the purposes according to coated manila and carry out suitably
Change.
According to its purposes, improved necessity becomes higher for the whiteness of coated manila and apparent hickie.When
When for hard-cover paper-made vessel, it is necessary to it is high for whiteness, and the visually few coated manila of hickie.Adjustment whiteness and
When apparent hickie, every square metre of weight of surface layer can be mainly adjusted by realize.By increasing often putting down for surface layer
The weight of square rice, improves whiteness, and hickie is improved, but then, can generate cannot efficiently use waste paper and at
The problem of this is also unable to cut.Ratio as surface layer, it is desired to be able to realize that every square metre of weight is small, while whiteness is high,
In order to without significant hickie and hiding is high.
It is well known that making to improve the hiding of paper while maintaining whiteness as filler contained in surface layer
With kaolin, talcum, calcium carbonate, titanium etc..Kaolin hiding is high but whiteness is not as good as calcium carbonate, and cost is also expensive.Talcum
For whiteness not as good as calcium carbonate, hiding is also poor.Titanium is best in terms of whiteness, hiding, but the finished product on copy paper production line
Rate is low and price height is it using difficult point.From the perspective of whiteness, hiding, calcium carbonate is cheap easy use
In add filler.
However, calcium carbonate is rarely employed as filler contained by surface layer in past coated manila.Especially making
When making the coated manila with pigment application layer based on kaolin, from being not used in the surface layer of coated manila
Calcium carbonate adds filler in being used as.It can be enumerated as reason, since the hiding of the pigment application layer based on kaolin is high,
So not containing the necessity of calcium carbonate in surface layer.Furthermore it is possible to enumerate, when containing calcium carbonate in surface layer, it is easily reduced
The degree of sizing of the acid rosin sizing agent used all the time as sizing agent, it is necessary to use neutral rosin sizing agent.In addition, also
It can enumerate, compared with kaolin, talcum, calcium carbonate itself also easily causes yield rate reduction etc..In addition, it is generally believed that benefit
Blacked with the plain boiled water of the lining of waste paper, therefore be easy to be affected by it, even if using calcium carbonate in surface layer, especially with hiding
Property with the powdered whiting of talcum same degree, whiteness hickie can not be improved.In spite of these results of study, but allow people
It surprisingly,, can be with by will have whiteness and the calcium carbonate of the excellent performance of hiding to be added in surface layer in the present invention
Improve whiteness and hickie.
Coated manila of the invention, which is characterized in that contain calcium carbonate in surface layer as inorganic pigment, the calcium carbonate
Content is 3 mass of mass %~20 % of the paper pulp amount relative to surface layer.The content of calcium carbonate is small relative to the paper pulp amount of surface layer
When 3 mass %, lacks the raising of the whiteness as caused by calcium carbonate, the improvement of covering power, apparent hickie cannot be improved.
On the other hand, the content of calcium carbonate relative to surface layer paper pulp amount more than 20 mass % when, although being improved along with whiteness, hide
Lid power improves, and significantly improves apparent hickie, but is likely to occur paper powder in printing and falls off from paper surface.In the present invention,
Can make calcium carbonate content contained by surface layer is 3 mass % or more, less than 10 mass %, can further be obtained in printing not
There are the coated manilas that paper powder falls off from paper surface.
Calcium carbonate used in the present invention, preferably powdered whiting and/or precipitated calcium carbonate.Powdered whiting be by
Lime stone is obtained using dry or wet pulverization process.Precipitated calcium carbonate is that lime stone is sintered into lime in kiln etc. for the time being,
Digestion is added water, carbon dioxide is passed through and is synthesized into using carburizing reagent.Although powdered whiting is in whiteness and hiding side
Face is poorer than precipitated calcium carbonate, but compared with kaolin and talcum, and whiteness is high, can also improve apparent hickie.Though in addition,
Right powdered whiting is the high filler of production line abrasiveness, but using wet pulverizing and makes partial size become smaller to improve abrasiveness,
In the relatively slow paper-making process of copy paper speed, it can make full use of powdered whiting that can add filler as interior.Precipitated calcium carbonate with again
Matter calcium carbonate is compared, since with higher whiteness and hiding, production line abrasiveness is also low, it is possible to suitably utilize
Precipitated calcium carbonate adds filler in being used as.
In coated manila of the invention, the specific surface area of BET method measurement is can be used in calcium carbonate contained in surface layer
6.0m2/ g or more, it is less than 10.0m2The precipitated calcium carbonate of/g.The BET specific surface area of precipitated calcium carbonate is less than 6.0m2When/g, improve
The effect of hickie has the tendency that becoming smaller in appearance.BET specific surface area is in 10.0m2Although the precipitated calcium carbonate hickie of/g or more
Improvement is significant, but since the partial size of precipitated calcium carbonate attenuates, paper layer intensity is also reduced, so may cause paper powder when printing
It falls off from paper surface.
In coated manila of the invention, calcium carbonate contained in surface layer be can be containing 70 mass % or more~less than 95
The powdered whiting of quality % 2 μm of particles below of partial size.The ratio of 2 μm of powdered whitings below of partial size is less than 70 mass %
When, it is reduced it is possible that whiteness improves, can not sufficiently improve hickie.And its ratio is when being more than 95 mass %, although white
The improvement of spot is good, but since partial size attenuates, paper layer intensity is also reduced, it is possible that causing paper powder when printing de- from paper surface
It falls.In addition, as mentioned earlier, as powdered whiting contained in surface layer, it is contemplated that the abrasiveness of production line is, it is preferable to use by wet
The powdered whiting that method pulverization process is crossed.Because of the processed powdered whiting of wet pulverizing heavy more processed than dry pulverization process
Carbonate Particle Size distribution more tends to sharply, so being easily processed, can also improve the abrasiveness of production line.
In coated manila of the invention, contain calcium carbonate in the pigment application layer that surface layer and facing surface are arranged.
Respectively can be containing the inorganic pigment other than calcium carbonate in surface layer and pigment application layer, but weight of calcium carbonate is preferably with respect to face
60 mass % of whole inorganic pigment or more contained in layer and pigment application layer.By this composition, white can be inexpensively produced
Degree height and the coated manila without hickie.
There is no particular limitation for starting pulps used in surface layer of the invention.For example, fine from wood-fibred, bast
Bleaching leaf wood sulfate wood pulp (L-BKP) based on the natural pulps such as dimension, bast fiber can be used as principal component use.It removes
The concrete example of wood pulp except this has bleached softwood wood sulfate wood pulp (N-BKP), bleached softwood wood sulphite wood pulp (N-
BSP), bleach leaf wood sulphite wood pulp (L-BSP) etc..In addition, mechanical pulp (GP), chemithermomechanical pulps
(CTMP), de inked pulp (DIP) can also carry out the mixing of arbitrary proportion depending on the application.Although could be used that secondary stock, in order to
It avoids that whiteness is caused to reduce, it is necessary to use the secondary stock etc. of the high-quality system of high whiteness, or a small amount of use.In the present invention, example
Such as, in whole paper pulp can the bleaching leaf wood sulfate wood pulp (L-BKP) containing 70 mass % or more, such as content be 75~98
Quality %.In addition, the drainability (Canadian Standard Freeness, CSF) of paper pulp is preferably adjusted to 250~600cc range.
The secondary stock lower than surface layer paper pulp whiteness is used in lining, sandwich layer uses the lower secondary stock of whiteness, but paper
The drainability of slurry is not particularly limited.In addition, being added especially with regard to filler, as long as in the range for not reducing paper layer intensity
Interior addition, is not particularly limited.The composition of bottom can carry out change appropriate according to the purposes of coated manila, can
With with lining or surface layer composition having the same.
Within the scope of the effect of the invention, flocculation aid, paper can be used in surface layer, lining, sandwich layer and bottom
Intensity reinforcing agent colours taste dyestuff, colours taste pigment, sizing agent.In addition, in order to improve operability when copy paper, it can
Yield rate enhancer, drainability enhancer, defoaming agent are used with appropriate.Such as in the present invention, it can add relative to face
The above-mentioned additive of 0.001~5 mass % of the paper pulp amount of layer.Specifically, it can be enumerated as aluminum sulfate as flocculation aid,
0.01~2 mass % of the paper pulp amount relative to surface layer can be for example added in the present invention.It, can as paper strength reinforcing agent
To be enumerated as polyacrylamide, 0.01~2 mass % of the paper pulp amount relative to surface layer can be for example added in the present invention.Make
For sizing agent, it can be enumerated as neutral rosin, such as 0.01~2 mass % of the paper pulp amount relative to surface layer can be added.
Surface layer, lining, sandwich layer and bottom is made in copy paper respectively, then manufactures paper with pulp, and production constitutes the white of coated manila body paper
Paperboard.At this point, it is preferred that under the conditions of neutral or alkalescent range, such as pH6.8~8.5 copy paper.Fourdrinier wire can be used in copy paper method
Copy paper method well known to formula, cylinder etc..The purpose of to assign this white board printing adaptability, is provided with pigment application layer.Face
Expect that coating layer is formed and being coated and dried the coating being made of pigment and adhesive.
As the inorganic pigment in pigment application layer, contain powdered whiting.In addition, although use can be appropriately combined
The public pigment such as clay, precipitated calcium carbonate, titanium dioxide, plastic pigment, but it is mainly preferred use powdered whiting.I.e.
The solid state component for making coating in pigment application layer is 64 mass % or more, in order to make good fluidity, inhibits the generation of striped, face
Powdered whiting can be at least using 60 mass % or more, it is preferable to use 65~95 mass % in material.Heavy carbon used herein
Sour calcium, since the powdered whiting for using wet pulverizing to handle divides than the powdered whiting granularity that dry pulverization process is handled
Cloth is more sharp, is easily processed, therefore it is preferred that.
As the sticker in pigment application layer, it is enumerated as styrenebutadiene copolymer rubber (SBR), methacrylic acid
Methyl esters butadiene copolymer rubber equiconjugate dienes polyrubber, polyvinyl alcohol, oxidized starch, carboxymethyl cellulose, hydroxyl second
The cellulose derivatives such as base cellulose, can individually or two or more is used in mixed way.The dosage of sticker is for example relative to 100 weights
Measuring part pigment can be 5~30 parts by weight.
In addition, as needed, can also be suitably used in coating used in pigment application layer dispersing agent, caustic soda,
The pH adjusting agents such as ammonium hydroxide, defoaming agent, illuminating colour pigment, hydrophober, flow ability modifying agent etc..
It constitutes the pigment application layer on the white board of body paper usually to be formed by lower coating layer, 2 layers of upper coating layer, but can also
To be single layer, it is also possible to 3 layers or more.The coating weight of pigment application layer is based on every layer of average dry mass, usually in 5g/m2~
15g/m2Range.For example, when being set as 2 layers of pigment application layer, the coating weight of lower coating layer be based on dry mass
5g/m2~15g/m2In the range of implement coating, the coating weight of upper coating layer is in 5g/m2~13g/m2In the range of implement coating.
In addition, crimp in order to prevent on the surface of white board bottom, range also can be set based on dry mass in 1g/m215g/
m2Single coating layer, this coating layer can be pigment application layer, be also possible to mainly made of an adhesive without pigment
Coating layer.When especially bottom copy paper is at layer containing waste paper, in order to reach the impurity for hiding the waste paper origin contained in this layer,
And the purpose for preventing it from falling off, coating layer can be set on the surface of bottom.
There is no limit appropriately combined can use such as air knife coaters, scrape coating machine as formation coating layer
Knife coating machine, rod coater (rod coater), curtain coater and door roll coater (gate roll coater),
Roll coaters such as screening machine etc..When being provided with the coating layer of bilayer or more, forming device as lower coating, it is preferable to use sticks
Formula coating machine, forming device as upper coating, it is preferable to use rod coaters, knife type coater.It can be coated respectively, example
Such as, undermost coating layer is constituted using rod coater, constitutes the second layer coating layer of middle layer using rod coater, structure
Knife type coater is used at outermost third layer coating layer.
Embodiment
It is exemplified below embodiment, the present invention is further illustrated, but the present invention is of course not solely limited to these.
In addition, so-called part and % respectively indicate solid state component mass parts, solid state component matter in following Examples and Comparative Examples
Measure %.
Each evaluation method is implemented in following manner.
1) measurement of whiteness
In accordance with ISO 2470:1999Paper, board and pulps-Measurement of diffuse blue
Reflectance factor (ISO brightness) measures the pigment application layer of facing surface setting.
2) measurement of precipitated calcium carbonate BET specific surface area
It is measured using nitrogen adsorption method (Micromeritics corporation, TriStar II 3020).
3) measurement of wet process powdered whiting partial size
Using laser beam diffraction/scattering formula particle size distribution device (production of LA-920/ hole field is made) 2 μm of partial size of measurement
Mass accumulation % below.
4) hickie
By estimating the hickie in the pigment application level using the setting of 5 level evaluation facing surfaces.In 5 ranks,
The good situation for not observing hickie completely is evaluated as 5, the case where hickie most serious is evaluated as 1.In 5 ranks, comment
Valence is 3~5, is determined as qualification, is the rank that there is no problem in practice；1 or 2 are evaluated as, since hickie is serious
It is determined that being unqualified.
5) paper powder when printing falls off evaluation
Testing machine is printed using the made RI of bright production, using 0.4cc Toyo Ink Co., Ltd. SMX-25 tusche, in
It is printed in the pigment application level of facing surface setting under 60rpm, the degree that falls off of visual assessment paper powder.Evaluation presses 4
A rank carries out.In 4 ranks, the good situation that paper powder falls off will not be observed completely and is evaluated as 4；It is de- that a large amount of paper powders occur
What is fallen is evaluated as 1.In 4 ranks, 2~4 are evaluated as, is determined as qualification, is the rank that there is no problem in practice；
It is evaluated as 1, is fallen off since a large amount of paper powders occur it is determined that being unqualified.
Embodiment
The production of coating layer coating under < >
By 20 parts of kaolin (KEIMIN corporation hydrasperse), wet process powdered whiting (Imerys Minerals
Japan K.K. carbital 60) 80 parts, 15 parts of styrene butadiene polymerizations rubber, 3 parts of organic phosphate starch be scattered in
In water, the coating of the lower coating layer of 64 mass % of solid component concentration is obtained.
The production of the upper coating layer coating of < >
By 30 parts of kaolin (CADAM corporation, Amazon SB), wet process powdered whiting (Imerys Minerals
Japan K.K. carbital 90) 60 parts, 10 parts of titanium dioxide (DuPont Co., Ltd. RPS-Vantage), benzene second
15 parts of alkene polymerizing butadiene rubber is dispersed in water, and obtains the coating of the upper coating layer of 64 mass % of solid component concentration.
(embodiment 1)
90 parts of hardwood pulp (L-BKP) and 10 parts of needle wooden oar (N-BKP) are dispersed in water, adjusts to CSF350cc and obtains
It is starched to stream, into stream slurry, mixture content is the precipitated calcium carbonate (trade name: TP121-6S/ works of rubbing difficult to understand relative to paper pulp amount 4% more
Industry Co. Ltd. system BET specific surface area 7.0m2/ g) obtain the raw material of surface layer.Then disperse the deinking not being beaten bleaching in water
Secondary stock obtains the raw material of lining and bottom.Then the useless magazine paper pulp of dispersion deinking obtains the raw material of sandwich layer in water.Using length
Net paper machine is manufactured paper with pulp into using various raw materials and is made of surface layer/lining/4 layers of sandwich layer/bottom under the conditions of pH7.7, and every square metre
Weight is 310g/m2White board.The weight per square meter of the surface layer of obtained white board is 25g/m2, whiteness is 78%；Lining
The weight per square meter of layer is 40g/m2, whiteness is 66%；The weight per square meter of sandwich layer is 190g/m2, whiteness is
55%；The weight per square meter of bottom is 55g/m2, whiteness is 66%.In addition, addition is strong as paper respectively in surface layer
Spend polyacrylamide, the aluminum sulfate as flocculation aid of reinforcing agent, the neutral rosin as sizing agent, wherein polyacrylamide
Additive amount be 0.2% of the paper pulp amount relative to surface layer, aluminum sulfate is 0.2% of the paper pulp amount relative to surface layer, neutral pine
Perfume is 0.3% of the paper pulp amount relative to surface layer.In addition, being added in lining, sandwich layer, bottom as paper strength reinforcing agent
Starch, additive amount be relative to each layer paper pulp amount 0.2%.In the table for the surface layer for as above operate obtained white board
The pigment application layer for constituting lower layer is provided on face, which is to plant coating layer using rod coater painting to be made with coating
Solid state component is 10g/m2And it is dried and is formed.Then, it is constituted in the pigment application layer surface setting for constituting lower layer
The pigment application layer of layer, to obtain coated manila, wherein the pigment application layer for constituting upper layer is applied using knife type coater
Coating layer makes solid state component 10g/m with coating on cloth2And it is dried and is formed.
(embodiment 2)
By the precipitated calcium carbonate mixed in white board face stock (trade name: TP121-6S/ Okutama Kogyo Co., Ltd.
BET specific surface area 7.0m processed2/ g) be added to relative to paper pulp amount 9%, in addition to this, by embodiment 1 with method copy paper, obtain
Coated manila.
(embodiment 3)
The calcium carbonate mixed in white board face stock is changed to precipitated calcium carbonate (preproduction A BET specific surface area
9.5m2/ g), in addition to this, by embodiment 1 with method copy paper, obtain coated manila.
(embodiment 4)
The calcium carbonate mixed in white board face stock is changed to precipitated calcium carbonate (preproduction B BET specific surface area
6.0m2/ g), additive amount is 9% relative to paper pulp amount, in addition to this, by embodiment 1 with method copy paper, obtains coating blank
Paper.
(embodiment 5)
By the precipitated calcium carbonate mixed in white board face stock (trade name: the TP 121-6S/ industrial strain formula meetings that rub difficult to understand more
Society BET specific surface area 7.0m2/ g) combined amount be added to relative to paper pulp amount 10.5%, in addition to this, by embodiment 1
With method copy paper, coated manila is obtained.
(embodiment 6)
The calcium carbonate mixed in white board face stock is changed to precipitated calcium carbonate (preproduction C BET specific surface area
5.0m2/ g), additive amount is 9% relative to paper pulp amount, in addition to this, by embodiment 1 with method copy paper, obtains coating blank
Paper.
(embodiment 7)
The calcium carbonate mixed in white board face stock is changed to precipitated calcium carbonate (preproduction D BET specific surface area
11.0m2/ g), additive amount is 9% relative to paper pulp amount, in addition to this, by embodiment 1 with method copy paper, obtains coating blank
Paper.
(embodiment 8)
The calcium carbonate mixed in white board face stock is changed to precipitated calcium carbonate (preproduction C BET specific surface area
5.0m2/ g), additive amount is 3% relative to paper pulp amount, in addition to this, by embodiment 1 with method copy paper, obtains coating blank
Paper.
(embodiment 9)
The calcium carbonate mixed in white board face stock is changed to precipitated calcium carbonate (preproduction D BET specific surface area
11.0m2/ g), additive amount is 20% relative to paper pulp amount, in addition to this, by embodiment 1 with method copy paper, obtains being coated with white
Paperboard.
(embodiment 10)
The surface of the coated manila bottom obtained in embodiment 1 plants coating layer using knife type coater painting and applies
Material makes solid state component 10g/m2And be dried pigment application layer is arranged, obtaining two layers of surface layer and bottom has pigment painting
The coated manila of layer of cloth.
(embodiment 11)
Using each raw material in embodiment 1, manufactured paper with pulp into using fourdrinier paper machine be made of surface layer/3 layers of sandwich layer/bottom it is every
Weight per square meter is 350g/m2White board, the weight per square meter of surface layer is 55g/m2, the weight per square meter of sandwich layer is
220g/m2, the weight per square meter of bottom is 75g/m2, in addition to this, by embodiment 1 with method copy paper, obtain coated manila.
(embodiment 12)
The surface of coated manila bottom obtained in embodiment 11 plants coating layer by knife type coater painting and applies
Material makes solid state component 10g/m2And be dried pigment application layer is arranged, obtaining two layers of surface layer and bottom has pigment painting
The coated manila of layer of cloth.
(embodiment 13)
60 parts of high-quality secondary stock, 30 parts of hardwood pulp (L-BKP) and 10 parts of softwood pulp (N-BKP) are dispersed in water,
It adjusts to CSF350cc and obtains stream slurry, mixture content is the wet pulverizing powdered whiting relative to paper pulp amount 7% into stream slurry
(trade name: carbital90/Imerys Minerals Japan K.K. 2 μm of diameter particle content ratios below of granulation are 90
Quality %) obtain the raw material of surface layer.Then disperse the deinking not being beaten bleaching pulp from ONP in water and obtain the raw material of lining.
Then the useless magazine paper pulp of dispersion deinking obtains the raw material of sandwich layer in water.Then it is useless new to disperse the deinking not being beaten bleaching in water
It hears paper pulp and obtains the raw material of bottom.Using fourdrinier paper machine under the conditions of pH7.5, manufactured paper with pulp into using various raw materials by surface layer/lining
4 layers of layer/sandwich layer/bottom composition, weight per square meter 260g/m2White board.Every square of the surface layer of obtained white board
Meter Chong Liang is 30g/m2, whiteness is 78%；The weight per square meter of lining is 45g/m2, whiteness is 60%；Sandwich layer is often put down
Square meter Chong Liang is 140g/m2, whiteness is 50%；The weight per square meter of bottom is 45g/m2, whiteness is 60%.In addition,
The polyacrylamide as paper strength reinforcing agent, the aluminum sulfate as flocculation aid are added in surface layer respectively, as sizing agent
Neutral rosin, wherein the additive amount of polyacrylamide 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 are 0.3% of the paper pulp amount relative to surface layer.In addition, in lining, sandwich layer, bottom
It is added to the starch as paper strength reinforcing agent, additive amount is 0.2% relative to each layer paper pulp amount.As above it is being grasped
On the surface for making the surface layer of obtained white board, provided with the pigment application layer for constituting lower layer, which is using stick
Coating machine painting, which plants coating layer, makes solid state component 10g/m with coating2And it is dried and is formed.Then, lower layer is being constituted
Pigment application layer surface be provided with constitute upper layer pigment application layer, to obtain coated manila, wherein constitute upper layer
Pigment application layer is to use knife type coater to be coated with upper coating layer coating to make solid state component 10g/m2And it is dried and shape
At.
(embodiment 14)
Wet pulverizing powdered whiting (the trade name: carbital90/Imerys that will be mixed in white board face stock
Minerals Japan K.K. 2 μm of diameter particle content ratios below of granulation are 90 mass %) it is added to relative to paper pulp amount
9%, in addition to this, by embodiment 13 with method copy paper, obtain coated manila.
(embodiment 15)
Wet pulverizing powdered whiting (the trade name: carbital90/Imerys that will be mixed in white board face stock
Minerals Japan K.K. 2 μm of diameter particle content ratios below of granulation are 90 mass %) it is added to relative to paper pulp amount
4%, in addition to this, by embodiment 13 with method copy paper, obtain coated manila.
(embodiment 16)
The calcium carbonate mixed in white board face stock is changed to wet pulverizing powdered whiting (2 μm of preproduction X partial size
Particle content ratio below is 75 mass %), in addition to this, by embodiment 13 with method copy paper, obtain coated manila.
(embodiment 17)
The calcium carbonate mixed in white board face stock is changed to wet pulverizing powdered whiting (2 μm of preproduction Y partial size
Particle content ratio below is 93 mass %), in addition to this, by embodiment 13 with method copy paper, obtain coated manila.
(embodiment 18)
Wet pulverizing powdered whiting (the trade name: carbital90/Imerys that will be mixed in white board face stock
Minerals Japan K.K. 2 μm of diameter particle content ratios below of granulation are 90 mass %) it is added to relative to paper pulp amount
11%, in addition to this, by embodiment 13 with method copy paper, obtain coated manila
(embodiment 19)
The calcium carbonate mixed in white board face stock is changed to wet pulverizing powdered whiting (2 μm of preproduction Z partial size
Particle content ratio below is 65 mass %), additive amount is 3% relative to paper pulp amount, in addition to this, by embodiment 13
With method copy paper, coated manila is obtained.
(embodiment 20)
Wet pulverizing powdered whiting (the trade name: carbital90/Imerys that will be mixed in white board face stock
Minerals Japan K.K. 2 μm of diameter particle content ratios below of granulation are 90 mass %) it is added to relative to paper pulp amount
20%, in addition to this, by embodiment 13 with method copy paper, obtain coated manila.
(comparative example 1)
By the precipitated calcium carbonate mixed in white board face stock (trade name: the TP 121-6S/ industrial strain formula meetings that rub difficult to understand more
Society BET specific surface area 7.0m2/ g) it is changed to talcum, additive amount is 10% relative to paper pulp amount, in addition to this, by real
Example 1 is applied with method copy paper, obtains coated manila.
(comparative example 2)
By the precipitated calcium carbonate mixed in white board face stock (trade name: the TP 121-6S/ industrial strain formula meetings that rub difficult to understand more
Society BET specific surface area 7.0m2/ g) combined amount be added to relative to paper pulp amount 2%, in addition to this, by the same method of embodiment 1
Copy paper obtains coated manila.
(comparative example 3)
Wet pulverizing powdered whiting (the trade name: carbital90/Imerys that will be mixed in white board face stock
Minerals Japan K.K. 2 μm of diameter particle content ratios below of granulation are 90 mass %) it is added to relative to paper pulp amount
2%, in addition to this, by embodiment 13 with method copy paper, obtain coated manila.
(comparative example 4)
By the precipitated calcium carbonate mixed in white board face stock (trade name: the TP 121-6S/ industrial strain formula meetings that rub difficult to understand more
Society BET specific surface area 7.0m2/ g) combined amount be added to relative to paper pulp amount 25%, it is in addition to this, same by embodiment 1
Method copy paper, obtains coated manila.
(comparative example 5)
Wet pulverizing powdered whiting (the trade name: carbital90/Imerys that will be mixed in white board face stock
Minerals Japan K.K. 2 μm of diameter particle content ratios below of granulation are 90 mass %) it is added to relative to paper pulp amount
25%, in addition to this, by embodiment 13 with method copy paper, obtain coated manila.
The evaluation result of the white board or coated manilas that obtained by each embodiment and comparative example is as shown in table 1.It can from table 1
Clearly to learn, the coated manila obtained by Examples 1 to 20, any one is difficult to observe hickie, and visual observation is good
Good, paper powder when being also able to satisfy printing falls off requirement.
The coated manila obtained by embodiment 8, since the precipitated calcium carbonate being added into surface layer is fewer, in addition, making
Precipitated calcium carbonate BET specific surface area is also small, so whiteness is low compared with other embodiments, hickie is serious in appearance,
It but still is the rank that there is no problem in practical applications.
The coated manila obtained by embodiment 9, since the precipitated calcium carbonate being added into surface layer is relatively more, in addition, making
Precipitated calcium carbonate BET specific surface area is also big, so paper powder obscission when printing is tight compared with other embodiments
Weight, but still be the rank that there is no problem in practical applications.
The coated manila obtained by embodiment 19, since the powdered whiting being added into surface layer is fewer, in addition, making
2 μm of powdered whiting partial size particle content ratios below are also low, so whiteness is low compared with other embodiments,
Hickie is serious in appearance, but still is the rank that there is no problem in practical applications.
The coated manila obtained by embodiment 20, since the powdered whiting being added into surface layer is relatively more, in addition, making
2 μm of powdered whiting partial size particle content ratios below are also high, so the paper compared with other embodiments, when printing
Powder obscission is serious, but still is the rank that there is no problem in practical applications.
The coated manila obtained by comparative example 1, due to having used talcum, institute as the inorganic pigment contained in surface layer
With in the ratio of additive amount, whiteness is low, and hickie is serious, it is not able to satisfy practical application.
The coated manila obtained by comparative example 2 and comparative example 3, since the amount for the calcium carbonate being added to surface layer is very few, institute
Not to be able to satisfy the concealment of surface layer, causes its whiteness low, and hickie is serious, be not able to satisfy practical application.
The coated manila obtained by comparative example 4 and comparative example 5, since the amount for the calcium carbonate being added to surface layer is excessive, institute
To cause paper powder when printing to fall off obviously, it is not able to satisfy practical application.
Claims (8)
1. a kind of coated manila, the coated manila is in the multilayered structure at least with surface layer, lining, sandwich layer and bottom
The pigment application layer containing inorganic pigment is provided in at least one side of white board, which is characterized in that
The surface layer contains paper pulp, also contains calcium carbonate as inorganic pigment, the calcium carbonate is processed through wet pulverizing
Powdered whiting；
The content of the calcium carbonate of the surface layer is 3 mass of mass %~20 % relative to the paper pulp amount of surface layer；
The surface of surface layer is arranged in the pigment application layer；
As the inorganic pigment contained in the pigment application layer, contain powdered whiting.
2. coated manila as described in claim 1, which is characterized in that the content of the calcium carbonate of the surface layer is relative to surface layer
Paper pulp amount be 3 mass % or more, less than 10 mass %.
3. coated manila as claimed in claim 1 or 2, which is characterized in that the calcium carbonate contained in the surface layer is to contain
There is the powdered whiting of 70 mass % or more, 2 μm of particles below of partial size less than 95 mass %.
4. coated manila according to any one of claims 1 to 3, which is characterized in that in the surface layer and be set to
In the pigment application layer of facing surface, the 60 mass % or more of contained whole inorganic pigments are calcium carbonate.
5. coated manila as described in any one of claims 1 to 4, which is characterized in that in the lining and the bottom
Containing the secondary stock lower than paper pulp whiteness contained in the surface layer, contain in the sandwich layer than the lining and the bottom
Contained in the low secondary stock of paper pulp whiteness.
6. such as coated manila according to any one of claims 1 to 5, which is characterized in that
Every square metre of weight of the surface layer is 15g/m2~60g/m2, whiteness is 70%~85%,
Every square metre of weight of the lining is 20g/m2~80g/m2, whiteness is 55%~75%,
Every square metre of weight of the sandwich layer is 50g/m2~500g/m2, whiteness is 35%~60%.
7. a kind of manufacturing method of coated manila, the coated manila is to become at least surface layer, lining, sandwich layer and bottom
Multilayer manufacture paper with pulp structure the mode white board that carries out copy paper at least one side on the pigment application layer containing inorganic pigment is set,
It is characterized in that,
The surface layer contains calcium carbonate as inorganic pigment, the calcium carbonate be through the processed powdered whiting of wet pulverizing,
The content of the calcium carbonate of the surface layer is the 3 mass % of mass %~20 relative to the paper pulp amount of surface layer,
In turn, the surface for powdered whiting will be contained as the pigment application layer of inorganic pigment being arranged in the surface layer.
8. the manufacturing method of coated manila as claimed in claim 7, which is characterized in that
Contain the secondary stock lower than paper pulp whiteness contained in the surface layer in the lining and the bottom, in the sandwich layer
Contain the secondary stock lower than paper pulp whiteness contained in the lining and the bottom.
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 |
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| CN201210260036.4A Division CN103572666B (en) | 2012-07-20 | 2012-07-20 | Coated manila |
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| CN105951531B true CN105951531B (en) | 2019-06-18 |
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| CN201610425234.XA Active CN105951531B (en) | 2012-07-20 | 2012-07-20 | Coated manila |
| CN201210260036.4A Active CN103572666B (en) | 2012-07-20 | 2012-07-20 | Coated manila |
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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 |
| CN111764192A (en) * | 2018-09-20 | 2020-10-13 | 苗广厚 | Preparation method of high-strength high-moisture-proof regenerated white board paper |
| 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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| CN201443028U (en) * | 2009-06-11 | 2010-04-28 | 山东世纪阳光纸业集团有限公司 | Light coated white surface craft paper |
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| FI122074B (en) * | 2002-10-24 | 2011-08-15 | M Real Oyj | Process for making a fiber product |
| JP2004353130A (en) * | 2003-05-30 | 2004-12-16 | Oji Paper Co Ltd | Coated specific paperboard |
| JP5684965B2 (en) * | 2005-06-20 | 2015-03-18 | 大王製紙株式会社 | Manufacturing method of coated paper |
| CN102677549B (en) * | 2012-01-11 | 2014-08-13 | 臧永华 | Environment-friendly coated white board |
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| CN201443028U (en) * | 2009-06-11 | 2010-04-28 | 山东世纪阳光纸业集团有限公司 | Light coated white surface craft paper |
Non-Patent Citations (1)
| Title |
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| 单面涂布白板纸质量探讨和改进;郑玉清;《中国造纸学会第九届学术年会论文集（上）》;19990131;第384-386页 |
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