CN106522024A - Base-coat coating material, top-coat coating material, back-coat coating material, surface sizing agent and one-sided coated paper - Google Patents
Base-coat coating material, top-coat coating material, back-coat coating material, surface sizing agent and one-sided coated paper Download PDFInfo
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- CN106522024A CN106522024A CN201510571272.1A CN201510571272A CN106522024A CN 106522024 A CN106522024 A CN 106522024A CN 201510571272 A CN201510571272 A CN 201510571272A CN 106522024 A CN106522024 A CN 106522024A
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Abstract
The invention discloses a base-coat coating material, a top-coat coating material, a back-coat coating material, a surface sizing agent and one-sided coated paper. The base-coat coating material contains a pigment and an adhesive, wherein the pigment is 100 parts (by weight) of calcium carbonate, the adhesive is prepared from latex and/or starch, and the parts (by mass) of the adhesive are 7% to 20% that of the pigment. The one-sided coated paper comprises a base paper layer, a base coating, a top coating and a back coating, wherein the base coating is formed through coating one side of the base paper layer with the base-coat coating material, the top coating is formed through coating the base coating with the top-coat coating material, and the back coating is formed through coating the other side of the base paper layer with the back-coat coating material. By the manner, the degree of warping of the one-sided coated paper can be reduced.
Description
Technical field
The present invention relates to papermaking paint technical field, more particularly to bottom-coating, painting coating,
Back-coating, Cypres and one side art paper.
Background technology
The one side of one side art paper has a coating, and another side does not have the coating weight of coating or coating very
Low, two sides performance differs greatly, and when ambient humidity is higher or lower, paper warpage easily occurs
Phenomenon；When ambient humidity is higher, the one side for not having the coating weight of coating or coating relatively low is easy
Water suction profit rises, and paper is to the higher one side warpage of coating coating weight；When ambient temperature is relatively low, do not have
The relatively low easy dehydration shrinkage of one side of the coating weight of coating or coating, paper to no coating or
The relatively low one side warpage of the coating weight of coating.The warpage of one side art paper is follow-up to printing and labeling etc.
Paper process brings very burden.
In addition, the higher one side of one side copperplate paper and coating coating weight generally adopts multi-layer coated side
Formula, it is multi-layer coated in the compactness extent of each layer also have very big difference, this is further exacerbated by one side copperplate
Tendency of the paper to side warpage.
The content of the invention
The invention mainly solves the technical problem of provide a kind of bottom-coating, painting coating, the back of the body applying
Coating, Cypres and one side art paper, can reduce one side art paper warpage degree.
For solving above-mentioned technical problem, one aspect of the present invention is：A kind of using is provided
In the bottom-coating of one side art paper, including pigment and adhesive, the pigment is 100 mass parts
Calcium Carbonate, the adhesive is made up of latex and/or starch, and the mass parts of the adhesive are institute
State the 7%～20% of pigment.
Wherein, the pigment includes that granule of the diameter less than 2 microns accounts for more than 65% mass parts
The granule of C65 Calcium Carbonate and diameter less than 2 microns accounts for the C95 Calcium Carbonate of more than 95% mass parts,
Wherein, the C65 Calcium Carbonate and the C95 Calcium Carbonate mass ratio are 50～100: 50～0.
Wherein, the calcium carbonate granule is shaped as amorphous, the draw ratio of the calcium carbonate granule
Less than or equal to 4: 1.
Wherein, the quality of the gel in the latex accounts for the 20%～80% of the latex gross mass.
Wherein, the quality of the gel in the latex accounts for the latex gross mass
30%～40%.
For solving above-mentioned technical problem, another technical solution used in the present invention is：There is provided a kind of
For the painting coating of one side art paper, including：The pigment of 100 mass parts and 7-20 mass parts
Adhesive, the pigment include the mass ratio of Calcium Carbonate and china clay, the Calcium Carbonate and the china clay
Example is 40～100: 60～0.
Wherein, the Calcium Carbonate is that granule of the diameter less than 2 microns accounts for more than 98% mass parts
C98 Calcium Carbonate, and the mean diameter of the C98 Calcium Carbonate is less than 1 micron.
Wherein, at least one being shaped as in amorphous and spindle of the calcium carbonate granule.
Wherein, the china clay is that granule of the diameter less than 2 microns accounts for more than 50% mass parts
C50 china clay, and the radius-thickness ratio of the C50 china clay granule is more than 10: 1.
Wherein, the quality of the gel in the latex accounts for the 20%～80% of the latex gross mass.
Wherein, the quality of the gel in the latex accounts for the 30%～40% of the latex gross mass.
For solving above-mentioned technical problem, another technical solution used in the present invention is：There is provided a kind of
For the back-coating of one side art paper, including：The Calcium Carbonate and 7-20 mass parts of 100 mass parts
Adhesive；Wherein, the back-coating further includes nano-cellulose.
Wherein, the quality of the nano-cellulose accounts for the 0.1%～1% of the Calcium Carbonate quality.
Wherein, the length of the nano-cellulose is 0.1～10 micron, and width is 10～200 nanometers.
Wherein, the Calcium Carbonate is that granule of the diameter less than 2 microns accounts for more than 65% mass parts
C65 Calcium Carbonate.
Wherein, the calcium carbonate granule is shaped as amorphous, the draw ratio of the calcium carbonate granule
Less than or equal to 4: 1.
Wherein, the adhesive is made up of latex and/or starch.
For solving above-mentioned technical problem, another technical solution used in the present invention is：There is provided a kind of
For the Cypres of one side art paper, including starch and nano-cellulose.
Wherein, the starch is 100 mass parts, and the nano-cellulose is 1-10 mass parts.
Wherein, the length of the nano-cellulose is 0.1～10 micron, and width is 10～200 nanometers.
For solving above-mentioned technical problem, another technical solution used in the present invention is：There is provided a kind of
One side art paper, including：
Original paper layer；
Priming coat, is coated in the one side of the original paper layer using above-mentioned bottom-coating and is formed；
Finishing coat, is coated on the priming coat using above-mentioned painting coating and is formed；
Back coating, is coated on the another side of the original paper layer using above-mentioned back-coating and is formed.
Wherein, the coating weight of the priming coat and finishing coat is respectively 10～15 grams per square metre
(g/m2), the coating weight of the back coating is 1～10g/m2。
For solving above-mentioned technical problem, another technical solution used in the present invention is：There is provided a kind of
One side art paper, including：
Original paper layer；
Priming coat, is coated in the one side of the original paper layer using above-mentioned bottom-coating and is formed；
Finishing coat, is coated on the priming coat using above-mentioned painting coating and is formed；
Gum layer, is coated on shape on the another side of the original paper layer using above-mentioned Cypres
Into.
Wherein, the coating weight of the priming coat and finishing coat is respectively 10～15g/m2, the gum
The starch resin added of layer is 1～5g/m2。
The invention has the beneficial effects as follows：The situation of prior art is different from, the present invention is used for one side copper
The pigment of the bottom-coating of millboard is Calcium Carbonate, and the opening of Calcium Carbonate preferably, can be in coating layer
More space is formed, the opening of the structure of the more one side of one side art paper coating weight can be improved,
So that the moisture absorption rate of the more one side of Paper Coating amount or radial migratory pathway and no coating or painting
The one side that the coating weight of layer is less reaches unanimity, and reduces paper because the moisture absorption on two sides or radial migratory pathway
It is inconsistent to cause paper distortion and caused paper warpage；Simultaneously can also alleviate due in multi-layer coated
The warpage that each layer compactness extent is different and causes.
Specific embodiment
With reference to embodiment, the present invention is described in detail.
The coatings amount on one side art paper two sides difference, coated on one side have more coating,
And another side is not coated with coating or coatings amount is less, the one side for being coated with more coating is printing
Face, the coating layer that printing surface typically has two-layer different, the coating layer for being close to body paper applying are primary coat
Layer, the coating applied on priming coat are finishing coat, by multi-layer coated mode, Ke Yiti
The fineness of high printing.Another side is non-printed side, generally is coated with to be formed using little coating weight
Back coating takes the mode of top sizing to form gum layer.
Embodiment of the present invention provides a kind of bottom-coating for one side art paper, can be used to be coated with
The priming coat of one side art paper is formed, the bottom-coating of embodiment of the present invention includes pigment and gluing
Agent, pigment is the Calcium Carbonate of 100 mass parts, and adhesive is made up of latex and/or starch, adhesive
Mass parts for pigment 7%～20%.
The pigment of embodiment of the present invention is simple Calcium Carbonate, the opening of Calcium Carbonate preferably, energy
After coating is formed make coating contain more space, improve moisture absorption and the radial migratory pathway of coating, one
As, Calcium Carbonate particle diameter is bigger, and its opening is better, therefore can adopt grain in embodiment of the present invention
The larger Calcium Carbonate in footpath.Adhesive can provide bottom-coating with mobility and caking property, the present invention
The adhesive of embodiment can include the mixture of latex or starch or latex and starch, and latex is
Polymer particles are dispersed in water the general name of the colloid emulsion to be formed, latex can for Heveatex,
Synthetic latex and artificial latex；Starch can be ative starch, modified starch etc..Embodiment of the present invention
In, the quality of adhesive can be 7%, 11%, 16% or 20% of the quality of pigment etc..
Embodiment of the present invention be used for one side art paper bottom-coating pigment be Calcium Carbonate, carbonic acid
The opening of calcium preferably, can form more space in coating layer, can improve the coating of one side art paper
The opening of the structure of the more one side of amount so that the moisture absorption rate of the more one side of Paper Coating amount
Or the radial migratory pathway one side less with the coating weight for not having coating or coating reaches unanimity, paper is reduced
The moisture absorption on Zhang Yinwei two sides or radial migratory pathway is inconsistent causes paper distortion and caused paper warpage；
Simultaneously can also alleviate as each layer compactness extent be different in multi-layer coated and the warpage that causes.
Wherein, pigment includes that granule of the diameter less than 2 microns accounts for the C65 of more than 65% mass parts
The granule of Calcium Carbonate and diameter less than 2 microns accounts for the C95 Calcium Carbonate of more than 95% mass parts, its
In, C65 Calcium Carbonate and C95 Calcium Carbonate mass ratio are 50～100: 50～0.
In C65 Calcium Carbonate, calcium carbonate granule quality of the diameter less than 2 microns accounts for C65 Calcium Carbonate
The ratio of granule gross mass is more than or equal to 65%；In C95 Calcium Carbonate, diameter is less than 2 microns
Calcium carbonate granule quality account for C95 calcium carbonate granule gross masses ratio be more than or equal to 95%；Institute
Bigger than the granularity of C95 calcium carbonate granule on the whole with the granule of C65 Calcium Carbonate, the present invention is implemented
In mode, C65 Calcium Carbonate and C95 Calcium Carbonate mass ratio are 50～100: 50～0, using more
C65 Calcium Carbonate, improve the overall granularity of Calcium Carbonate, can further improve the opening of pigment.
In embodiment of the present invention, C65 Calcium Carbonate and C95 Calcium Carbonate mass ratio can be 50: 50,60:
40th, 80: 20 or 100: 0 etc..
Wherein, in embodiment of the present invention, being shaped as calcium carbonate granule is amorphous, amorphous carbon
Sour calcium is non-crystal Calcium Carbonate, the molecular structure with random arrangement, unbodied carbonic acid
Calcium easily forms space in the coating；The draw ratio of the calcium carbonate granule of embodiment of the present invention is little
In or be equal to 4: 1, such as 4: 1,3: 1 or 2: 1 etc..Draw ratio is referred to inside granule
Most major diameter and the ratio with the most major diameter in the perpendicular direction of most major diameter.
Wherein, the quality of the gel in latex accounts for the 20%～80% of latex gross mass, such as 20%,
50% or 80% etc.；Gel is to go moisture removal, remaining macromolecule glue to connect thing after latex is dried, and is used
After organic solvent dissolves remaining small-molecule substance, remaining material.Embodiment of the present invention is using solidifying
The relatively low latex of glue content, the gel content of latex is relatively low can to form more sky in coating layer
Gap, improves the opening of coating layer.
Wherein, the quality of the gel in latex accounts for the 30%～40% of latex gross mass, such as 30%,
35% or 40% etc..
Another embodiment of the present invention provides a kind of painting coating for one side art paper, can be used for
Coating forms the finishing coat of one side art paper, and painting coating includes the pigment and 7-20 of 100 mass parts
The adhesive of mass parts, pigment include that the mass ratio of Calcium Carbonate and china clay, Calcium Carbonate and china clay is
40～100: 60～0.
The opening of Calcium Carbonate will be got well compared with china clay, the high level used in the pigment of painting coating
Calcium Carbonate can effectively improve the opening of painting coating, increase in the finishing coat that painting coating is formed
Space；Wherein, in embodiment of the present invention, the mass ratio of Calcium Carbonate and china clay can for 40: 60,
60: 40,80: 20 or 100: 0 etc.；Adhesive can be 7 mass parts, 11 mass parts or 20
Mass parts etc..
It is Calcium Carbonate and porcelain that embodiment of the present invention is used for the pigment of the painting coating of one side art paper
Soil, the opening of Calcium Carbonate are good compared with china clay, using the Calcium Carbonate of high level, can be in coating layer
More space is formed, the opening of the structure of the more one side of one side art paper coating weight can be improved,
So that the moisture absorption rate of the more one side of Paper Coating amount or radial migratory pathway and no coating or painting
The one side that the coating weight of layer is less reaches unanimity, and reduces paper because the moisture absorption on two sides or radial migratory pathway
It is inconsistent to cause paper distortion and caused paper warpage；Simultaneously can also alleviate due in multi-layer coated
The warpage that each layer compactness extent is different and causes.
Wherein, Calcium Carbonate is the C98 that granule of the diameter less than 2 microns accounts for more than 98% mass parts
Calcium Carbonate, and the mean diameter of C98 Calcium Carbonate is less than 1 micron.In C98 Calcium Carbonate, diameter is not
Calcium carbonate granule quality more than 2 microns accounts for the ratio of C98 calcium carbonate granule gross masses and is more than or waits
In 98%.By the above-mentioned particle size distribution of Calcium Carbonate, further cut down painting coating and bottom-coating
Compactness extent difference, alleviate as each layer compactness extent be different in multi-layer coated and sticking up of causing
It is bent.
Wherein, at least one being shaped as in amorphous and spindle of calcium carbonate granule.
Wherein, china clay is that granule of the diameter less than 2 microns accounts for the C50 porcelain more than 50% mass parts
Soil, and the radius-thickness ratio of C50 china clay granules is more than 10: 1, such as 12: 1 or 15: 1 etc..
Wherein, the quality of the gel in latex accounts for the 20%～80% of latex gross mass, such as 20%,
50% or 80% etc.；Embodiment of the present invention is using the relatively low latex of gel content, the gel of latex
The relatively low opening that can be formed more space in coating layer, improve coating layer of content.
Wherein, the quality of the gel in latex accounts for the 30%～40% of latex gross mass, such as 30%,
35% or 40% etc..
A further embodiment of this invention provides a kind of back-coating for one side art paper, can be used for
Coating forms the back coating of one side art paper, back-coating include the Calcium Carbonate of 100 mass parts and
The adhesive of 7-20 mass parts；Adhesive can for 7 mass parts, 11 mass parts, 12 mass parts,
14 mass parts or 20 mass parts etc..Wherein, embodiment of the present invention back-coating is further included
Nano-cellulose.The a diameter of nanoscale of nano-cellulose and length it is larger with certain major diameter
Than nano-cellulose has the spies such as high-crystallinity, high-purity, high-specific surface area and hyperfine structure
Point, has very high closed performance after drying and forming-film；In embodiment of the present invention, nano-cellulose
TEMPO (tetramethyl piperidine oxides) oxidizing process, acid hydrolyzation, enzymatic isolation method or machinery can be passed through
The methods such as method are obtained.Meanwhile, the gluing agent content in the back-coating of embodiment of the present invention is higher,
Coating intensity can be improved, coating containment is further improved.
In embodiment of the present invention, add nano-cellulose in back-coating, the back of the body can be improved and applied
The closure of layer so that the less back coating of Paper Coating amount is when more with coating weight
Moisture absorption rate or radial migratory pathway reach unanimity, reduce paper because two sides moisture absorption or radial migratory pathway not
Unanimously cause paper distortion and caused paper warpage；Meanwhile, the back of the body of embodiment of the present invention is applied
In material, gluing agent content is higher, can further improve the closure of back coating.
Wherein, the quality of nano-cellulose accounts for the 0.1%～1% of Calcium Carbonate quality, such as 0.1%,
0.5%th, 0.8% or 1% etc..Wherein nano-cellulose can adopt mass percentage concentration for 2% suspension
Liquid adds.
Wherein, the length of nano-cellulose be 0.1～10 micron, such as 0.1 micron, 1 micron, 5
Micron or 10 microns etc., width is 10～200 nanometers, such as 10 nanometers, 20 nanometers, 50 receive
Rice, 100 nanometers or 200 nanometers etc..
Wherein, in back-coating, Calcium Carbonate is that granule of the diameter less than 2 microns accounts for more than 65%
The C65 Calcium Carbonate of mass parts.
Wherein, calcium carbonate granule is shaped as amorphous, and the draw ratio of calcium carbonate granule is less than or waits
In 4: 1, such as 4: 1,3: 1 or 2: 1 etc..
Wherein, adhesive is made up of latex and/or starch, i.e., adhesive can be latex, it is also possible to
For starch, the alternatively mixture of latex and starch.
Another embodiment of the invention also provides a kind of Cypres for one side art paper,
Can be used to be coated with the gum layer to form one side art paper, Cypres include starch and nanofiber
Element.
The present invention adds nano-cellulose in Cypres, can improve the closing of gum layer
Property so that moisture absorption rate while more with coating weight of paper gum layer or radial migratory pathway
Reach unanimity, reduce paper because the moisture absorption on two sides or radial migratory pathway it is inconsistent cause paper distortion and
Caused paper warpage.
Wherein, in Cypres, starch is 100 mass parts, and nano-cellulose is 1-10 matter
Amount part, such as 1 mass parts, 5 mass parts, 8 mass parts or 10 mass parts etc..Wherein Nanowire
Dimension element can adopt mass percentage concentration to be added for 2% suspension.
Wherein, the length of nano-cellulose be 0.1～10 micron, such as 0.1 micron, 1 micron, 5
Micron or 10 microns etc., width is 10～200 nanometers, such as 10 nanometers, 20 nanometers, 50 receive
Rice, 100 nanometers or 200 nanometers etc..
A further embodiment of this invention provides a kind of one side art paper, including original paper layer, priming coat,
Finishing coat and back coating, priming coat are to be coated on using the bottom-coating of above-mentioned embodiment of the invention
Formed in the one side of original paper layer；Finishing coat is to be applied using the painting coating of above-mentioned embodiment of the invention
It is overlying on priming coat and is formed；Back coating is to be coated using the back-coating of above-mentioned embodiment of the invention
Formed on the another side of original paper layer.The coating layer of the one side art paper of embodiment of the present invention is adopted
The painting coating of the above-mentioned embodiment of the present invention, bottom-coating and back-coating are formed, and please specifically be joined
According to above-mentioned embodiment, then this repeats no more.
The one side art paper of embodiment of the present invention, by improving the opening of priming coat and finishing coat
And the closure of back coating is improved, the moisture absorption rate or radial migratory pathway for making paper two sides tend to one
Cause, paper is reduced because the moisture absorption on two sides or radial migratory pathway is inconsistent causes paper distortion and caused
Paper warpage.
Wherein, the coating weight of priming coat and finishing coat is respectively 10～15g/m2, the coating of back coating
Measure as 1～10g/m2.For example, the coating weight of priming coat can be 10g/m2、10.4g/m2、10.5g/m2、
10.8g/m2Or 15g/m2Deng the coating weight of finishing coat can be 10g/m2、10.3g/m2、10.4g/m2、
10.6g/m2Or 15g/m2Deng the coating weight of back coating can be 1g/m2、5.1g/m2Or 10g/m2
Deng.
A further embodiment of this invention provides a kind of one side art paper, including original paper layer, priming coat,
Finishing coat and gum layer, priming coat are to be coated on using the bottom-coating of above-mentioned embodiment of the invention
Formed in the one side of original paper layer；Finishing coat is to be applied using the painting coating of above-mentioned embodiment of the invention
It is overlying on priming coat and is formed；Gum layer is to be applied using the Cypres of above-mentioned embodiment of the invention
It is overlying on the another side of original paper layer and is formed.The coating layer of the one side art paper of embodiment of the present invention is adopted
Formed with the painting coating of above-mentioned embodiment of the invention, bottom-coating and Cypres, specifically
Above-mentioned embodiment is refer to, then this repeats no more.
The one side art paper of embodiment of the present invention, by improving the opening of priming coat and finishing coat
And the closure of gum layer is improved, the moisture absorption rate or radial migratory pathway for making paper two sides tend to one
Cause, paper is reduced because the moisture absorption on two sides or radial migratory pathway is inconsistent causes paper distortion and caused
Paper warpage.
Wherein, the coating weight of priming coat and finishing coat is respectively 10～15g/m2, the coating of back coating
Measure as 1～10g/m2.For example, the coating weight of priming coat can be 10g/m2、10.4g/m2、10.5g/m2、
10.8g/m2Or 15g/m2Deng the coating weight of finishing coat can be 10g/m2、10.3g/m2、10.4g/m2、
10.6g/m2Or 15g/m2Deng the starch resin added of gum layer can be 1g/m2、3g/m2Or 5g/m2
Deng.
Below by specific embodiment, the invention will be further described.
Comparative example 1
In the bottom-coating of one side art paper, in pigment C65 Calcium Carbonate be 50 mass parts, C95
Calcium Carbonate is 50 mass parts, and in adhesive, starch is 4 mass parts, and latex is 6 mass parts, its
The gel content of middle latex is 70%, and priming coat coating weight is 10.8g/m2；In painting coating, face
In material, C98 Calcium Carbonate is 40 mass parts, and china clay is 60 mass parts, and adhesive is 10 matter of latex
Amount part, in latex, gel content is 70%, and finishing coat coating weight is 10.5g/m2；In back-coating,
Pigment is 100 mass parts of C65 Calcium Carbonate, and in adhesive, starch is 4 mass parts, and latex is 6 matter
Amount part, in latex, gel content is 70%, and finishing coat coating weight is 5.1g/m2.In ambient temperature it is
23 degrees Celsius (DEG C), when humidity is respectively 30%, 50% and 70%, measures one side art paper
Warpage degree.
Embodiment 1
In the bottom-coating of one side art paper, in pigment C65 Calcium Carbonate be 60 mass parts, C95
Calcium Carbonate is 40 mass parts, and in adhesive, starch is 4 mass parts, and latex is 7 mass parts, its
The gel content of middle latex is 40%, and priming coat coating weight is 10.5g/m2；In painting coating, face
In material, C98 Calcium Carbonate is 60 mass parts, and china clay is 40 mass parts, and adhesive is 11 matter of latex
Amount part, in latex, gel content is 40%, and finishing coat coating weight is 10.3g/m2；In back-coating,
Pigment is 100 mass parts of C65 Calcium Carbonate, and in adhesive, starch is 4 mass parts, and latex is 7 matter
Amount part, nano-cellulose is 0.1 mass parts, and in latex, gel content is 70%, finishing coat coating
Measure as 5.1g/m2.It is 23 DEG C in ambient temperature, when humidity is respectively 30%, 50% and 70%,
The warpage degree of measurement one side art paper.
Embodiment 2
In the bottom-coating of one side art paper, in pigment C65 Calcium Carbonate be 80 mass parts, C95
Calcium Carbonate is 20 mass parts, and in adhesive, starch is 4 mass parts, and latex is 7 mass parts, its
The gel content of middle latex is 40%, and priming coat coating weight is 10.8g/m2；In painting coating, face
In material, C98 Calcium Carbonate is 80 mass parts, and china clay is 20 mass parts, and adhesive is 11 matter of latex
Amount part, in latex, gel content is 40%, and finishing coat coating weight is 10.6g/m2；In back-coating,
Pigment is 100 mass parts of C65 Calcium Carbonate, and in adhesive, starch is 4 mass parts, and latex is 8 matter
Amount part, nano-cellulose is 0.5 mass parts, and in latex, gel content is 70%, finishing coat coating
Measure as 5.1g/m2.It is 23 DEG C in ambient temperature, when humidity is respectively 30%, 50% and 70%,
The warpage degree of measurement one side art paper.
Embodiment 3
In the bottom-coating of one side art paper, in pigment C65 Calcium Carbonate be 100 mass parts, gluing
In agent, starch is 4 mass parts, and latex is 7 mass parts, and wherein the gel content of latex is 40%,
Priming coat coating weight is 10.4g/m2；In painting coating, in pigment, C98 Calcium Carbonate is 100 mass
Part, adhesive is 11 mass parts of latex, and in latex, gel content is 40%, finishing coat coating weight
For 10.4g/m2；In back-coating, pigment is 100 mass parts of C65 Calcium Carbonate, is formed sediment in adhesive
Powder is 4 mass parts, and latex is 10 mass parts, and nano-cellulose is 1 mass parts, is coagulated in latex
Glue content is 70%, and finishing coat coating weight is 5.1g/m2.It is 23 DEG C in ambient temperature, humidity point
Not Wei 30%, 50% and 70% when, measure one side art paper warpage degree.
Comparative example 2
In the bottom-coating of one side art paper, in pigment C65 Calcium Carbonate be 50 mass parts, C95
Calcium Carbonate is 50 mass parts, and in adhesive, starch is 4 mass parts, and latex is 6 mass parts, its
The gel content of middle latex is 70%, and priming coat coating weight is 10.8g/m2；In painting coating, face
In material, C98 Calcium Carbonate is 40 mass parts, and china clay is 60 mass parts, and adhesive is 10 matter of latex
Amount part, in latex, gel content is 70%, and finishing coat coating weight is 10.5g/m2；Cypres
For 100% starch, gum layer resin added is 3g/m2.It it is 23 DEG C in ambient temperature, humidity is respectively
30%th, 50% and 70% when, measure one side art paper warpage degree.
Embodiment 4
In the bottom-coating of one side art paper, in pigment C65 Calcium Carbonate be 60 mass parts, C95
Calcium Carbonate is 40 mass parts, and in adhesive, starch is 4 mass parts, and latex is 7 mass parts, its
The gel content of middle latex is 40%, and priming coat coating weight is 10.5g/m2；In painting coating, face
In material, C98 Calcium Carbonate is 60 mass parts, and china clay is 40 mass parts, and adhesive is 11 matter of latex
Amount part, in latex, gel content is 40%, and finishing coat coating weight is 10.3g/m2；Cypres
For 100 mass parts starch and 1 mass parts nano-cellulose, gum layer starch resin added is 3g/m2。
It is 23 DEG C in ambient temperature, when humidity is respectively 30%, 50% and 70%, measures one side art paper
Warpage degree.
Embodiment 5
In the bottom-coating of one side art paper, in pigment C65 Calcium Carbonate be 80 mass parts, C95
Calcium Carbonate is 20 mass parts, and in adhesive, starch is 4 mass parts, and latex is 7 mass parts, its
The gel content of middle latex is 40%, and priming coat coating weight is 10.8g/m2；In painting coating, face
In material, C98 Calcium Carbonate is 80 mass parts, and china clay is 20 mass parts, and adhesive is 11 matter of latex
Amount part, in latex, gel content is 40%, and finishing coat coating weight is 10.6g/m2；Cypres
For 100 mass parts starch and 5 mass parts nano-celluloses, gum layer starch resin added is 3g/m2。
It is 23 DEG C in ambient temperature, when humidity is respectively 30%, 50% and 70%, measures one side art paper
Warpage degree.
Embodiment 6
In the bottom-coating of one side art paper, in pigment C65 Calcium Carbonate be 100 mass parts, gluing
In agent, starch is 4 mass parts, and latex is 7 mass parts, and wherein the gel content of latex is 40%,
Priming coat coating weight is 10.4g/m2；In painting coating, in pigment, C98 Calcium Carbonate is 100 mass
Part, adhesive is 11 mass parts of latex, and in latex, gel content is 40%, finishing coat coating weight
For 10.4g/m2；Cypres are 100 mass parts starch and 10 mass parts nano-celluloses, are carried on the back
Glue-line starch resin added is 3g/m2.It it is 23 DEG C in ambient temperature, humidity is respectively 30%, 50%
During with 70%, the warpage degree of one side art paper is measured.
In comparative example 1 and embodiment 1-3, one side art paper is backsize coating, and table 1 is contrast
The Ju Ti Pei Fang contrast of each coated coating in example 1 and embodiment 1-3；Comparative example 2 and embodiment 4-6
Middle one side art paper is back side applying glue, and table 2 is each coated coating in comparative example 2 and embodiment 4-6
And the Ju Ti Pei Fang contrast of the Cypres of gum layer.
Table 1
Table 2
In the embodiment of the present invention, the measuring method of one side art paper warpage degree is：
(1) art paper pattern sampling, and pattern is cut into the rectangle pattern of 100*160 millimeters
12 parts, two vertical edges of paper are required to meet when manufacturing paper with pulp parallel to paper is applied, paper machine operation
Direction (MD) and paper machine operation direction vertical direction (CD).The length that sheet trimming is allowed
Error is 1 millimeter.
(2) wherein 6 parts of 12 parts of patterns are taken, by it is pattern placed side by side at ambient temperature, make
Warpage degree of the paper after 2,15,60 minutes is measured with the ruler for being at least accurate to 1 millimeter.
The method of-measurement warpage degree is as follows：
If a. paper does not occur warpage, the warpage degree of paper is designated as 0；
If b. paper occurs warpage to more thick and heavy one side is coated with, the warpage type of paper is for just
To in addition by ruler perpendicular to desktop plane, the paper edge for measuring warpage leaves the distance of desktop.
10 millimeters are such as left ,+10 are recorded as
If c. there is warpage to one side that is relatively thin or not having coating layer is coated with paper, paper
Warpage type is negative sense.As Paper Coating faces up, need paper is integrally inverted so that warped surface
Upward.In addition by ruler perpendicular to desktop plane, measure warpage paper edge leave desktop away from
From.10 millimeters are such as left, -10 are recorded as
(3) remaining 6 parts of patterns, the constant temperature for lying against 23 degree of temperature, 30% humidity and the above are permanent
In wet instrument.Place 1 hour.
(4) pattern is taken out, and coating is faced up, rapidly by step (2) methods described one
The warpage degree of one recording paper.
(5) take above-mentioned 6 parts room temperature adjust under and high humidity environment under pattern, try to achieve which respectively
Meansigma methodss.Numerical value of the lower 60 minutes measurement data records of room temperature condition for comparative example.High humility ring
Meansigma methodss under border are recorded as the numerical value of embodiment.
As can be seen from Table 1 and Table 2, obtained using the coatings of embodiment of the present invention
One side art paper warpage situation is substantially relaxed, and paper in embodiment 3 and embodiment 6
Angularity is very low, illustrates that painting coating and the pigment of bottom-coating adopt more Calcium Carbonate
Or paper warpage can be significantly reduced using Calcium Carbonate completely, and in Cypres or back-coating
Middle addition nano-cellulose also can effectively reduce paper warpage.
Embodiments of the present invention are the foregoing is only, the patent model of the present invention is not thereby limited
Enclose, equivalent structure or equivalent flow conversion that every utilization present specification is made, or directly
Other related technical fields are connect or be used in indirectly, the patent protection of the present invention is included in the same manner
In the range of.
Claims (24)
1. a kind of bottom-coating for one side art paper, it is characterised in that including pigment and gluing
Agent, the pigment is the Calcium Carbonate of 100 mass parts, and the adhesive is made up of latex and/or starch,
The mass parts of the adhesive are the 7%～20% of the pigment.
2. bottom-coating according to claim 1, it is characterised in that the pigment includes directly
Granule of the footpath less than 2 microns accounts for the C65 Calcium Carbonate of more than 65% mass parts and diameter is less than 2
The granule of micron accounts for the C95 Calcium Carbonate of more than 95% mass parts, wherein, the C65 Calcium Carbonate and
The C95 Calcium Carbonate mass ratio is 50～100: 50～0.
3. bottom-coating according to claim 1, it is characterised in that the calcium carbonate granule
Be shaped as amorphous, the draw ratio of the calcium carbonate granule is less than or equal to 4: 1.
4. bottom-coating according to claim 1, it is characterised in that solidifying in the latex
The quality of glue accounts for the 20%～80% of the latex gross mass.
5. bottom-coating according to claim 4, it is characterised in that the institute in the latex
The quality for stating gel accounts for the 30%～40% of the latex gross mass.
6. a kind of painting coating for one side art paper, it is characterised in that include：100 mass
The adhesive of the pigment of part and 7-20 mass parts, the pigment include Calcium Carbonate and china clay, the carbon
The mass ratio of sour calcium and the china clay is 40～100: 60～0.
7. painting coating according to claim 6, it is characterised in that the Calcium Carbonate is straight
Granule of the footpath less than 2 microns accounts for the C98 Calcium Carbonate of more than 98% mass parts, and the C98
The mean diameter of Calcium Carbonate is less than 1 micron.
8. painting coating according to claim 6, it is characterised in that the calcium carbonate granule
At least one being shaped as in amorphous and spindle.
9. painting coating according to claim 6, it is characterised in that the china clay is diameter
Granule less than 2 microns accounts for the C50 china clay of more than 50% mass parts, and the C50 china clay
The radius-thickness ratio of grain is more than 10: 1.
10. painting coating according to claim 6, it is characterised in that solidifying in the latex
The quality of glue accounts for the 20%～80% of the latex gross mass.
11. painting coatings according to claim 10, it is characterised in that in the latex
The quality of gel accounts for the 30%～40% of the latex gross mass.
12. a kind of back-coatings for one side art paper, it is characterised in that include：100 mass
The adhesive of the Calcium Carbonate and 7-20 mass parts of part；Wherein, the back-coating further includes to receive
Rice cellulose.
13. back-coatings according to claim 12, it is characterised in that the nanofiber
The quality of element accounts for the 0.1%～1% of the Calcium Carbonate quality.
14. back-coatings according to claim 12, it is characterised in that the nanofiber
The length of element is 0.1～10 micron, and width is 10～200 nanometers.
15. back-coatings according to claim 12, it is characterised in that the Calcium Carbonate is
Granule of the diameter less than 2 microns accounts for the C65 Calcium Carbonate of more than 65% mass parts.
16. back-coatings according to claim 12, it is characterised in that the Calcium Carbonate
Being shaped as grain is amorphous, and the draw ratio of the calcium carbonate granule is less than or equal to 4: 1.
17. back-coatings according to claim 12, it is characterised in that the adhesive by
Latex and/or starch composition.
18. a kind of Cypres for one side art paper, it is characterised in that including starch and receiving
Rice cellulose.
19. Cypres according to claim 18, it is characterised in that the starch is
100 mass parts, the nano-cellulose are 1-10 mass parts.
20. Cypres according to claim 18, it is characterised in that the Nanowire
The length of dimension element is 0.1～10 micron, and width is 10～200 nanometers.
21. a kind of one side art papers, it is characterised in that include：
Original paper layer；
Priming coat, is coated on the original using the bottom-coating as described in any one of claim 1-5
Formed in the one side of ply of paper；
Finishing coat, is coated on the bottom using the painting coating as described in any one of claim 6-11
Formed in coating；
Back coating, be coated on using back-coating as described in any one of claim 12-17 as described in
Formed on the another side of original paper layer.
22. one side art papers according to claim 21, it is characterised in that the priming coat
10～15 grams of per square metre of (g/m are respectively with the coating weight of finishing coat2), the coating of the back coating
Measure as 1～10g/m2。
23. a kind of one side art papers, it is characterised in that include：
Original paper layer；
Priming coat, is coated on the original using the bottom-coating as described in any one of claim 1-5
Formed in the one side of ply of paper；
Finishing coat, is coated on the bottom using the painting coating as described in any one of claim 6-11
Formed in coating；
Gum layer, is coated on institute using the Cypres as described in any one of claim 18-20
State.
24. one side art papers according to claim 23, it is characterised in that the priming coat
10～15g/m is respectively with the coating weight of finishing coat2, the starch resin added of the gum layer is 1～5
g/m2。
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| CN110158361A (en) * | 2019-05-22 | 2019-08-23 | 济南圣泉集团股份有限公司 | A kind of modified corrugated paper and its preparation method and application |
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| CN111472205A (en) * | 2020-05-27 | 2020-07-31 | 齐鲁工业大学 | Water transfer printing paper and preparation method thereof |
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