CN104594121B - A kind of art paper coating containing nanometer particle-modified adhesive and preparation method thereof - Google Patents

A kind of art paper coating containing nanometer particle-modified adhesive and preparation method thereof Download PDF

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CN104594121B
CN104594121B CN201510006477.5A CN201510006477A CN104594121B CN 104594121 B CN104594121 B CN 104594121B CN 201510006477 A CN201510006477 A CN 201510006477A CN 104594121 B CN104594121 B CN 104594121B
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calcium carbonate
coating
art paper
paper coating
kaolin
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CN104594121A (en
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唐艳军
张宇
杨志远
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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Abstract

The present invention relates to a kind of art paper coating containing nanometer particle-modified adhesive and preparation method thereof.Coating in the present invention is made up of Kaolin, ground calcium carbonate, modifying cinepazid emulsion, sodium carboxymethyl cellulose, sodium hexameta phosphate, water repellent agent, lubricant, defoamer, ammonia and water.Its preparation method is as follows: first, dispersant is added to the water and stirs, then pigment particles is added thereto, and under 2000 r/min, stir 30 min, mixing speed adds adhesive nono calcium carbonate modified styrene butyl acrylate emulsion and water repellent agent, lubricant, defoamer after being down to 1000 r/min, is further continued for disperseing 10 min at 1000 r/min down cuts, regulates pH to 8.0, finally, filter discharging through 200 eye mesh screens and obtain art paper coating.The coating solids that the present invention obtains is high, viscosity is low, water retention property good, production cost is low.

Description

A kind of art paper coating containing nanometer particle-modified adhesive and preparation method thereof
Technical field
The invention belongs to pulp and paper technology field, be specifically related to a kind of art paper containing nanometer particle-modified adhesive Coating and preparation method thereof, dimensional effect, interfacial effect by nano composite material are improved the optical property of paper, are printed and fit Property, improve the surface hydrophobic of paper.
Background technology
Along with improving constantly of expanding economy and people's living standard, China's paper products demand constantly rises, especially Being volume of production and the consumption figure of coating paper, last decade obtains fast development.Total productive consumption amount of China's paper industry now occupies generation Boundary second, but people is coated with between paper consumption figure and developed country having a long way to go.Coating paper, i.e. at base paper sheet topcoating last layer Coating, main purpose is to make coating farthest cover body paper surface fiber, gives the preferable optical property of paper, prints and fit Property and specific function.High-quality paper and cardboard are all through coating.Coating coating is typically by pigment (Kaolin, carbonic acid Calcium etc.), adhesive and other auxiliary agents such as dispersant, water repellent agent, defoamer, brightening agent, the composition such as antibacterial.Paper after coating Can form coating on surface, the intensity of coating can adapt to the stress effect in printing process.But, along with print speed printing speed not Disconnected raising, the coating that traditional coating is formed can not fully meet printing stress requirement, it is therefore desirable to constantly research and development high-performance is coated with Material is to adapt to the print speed printing speed constantly promoted.Coating surface strength is mainly by between pigment particles and between pigment and paper Bondability determines, therefore adhesive is as the bridge connected between them, plays an important role coating property.Along with nanometer section Learn the development with technology, the preparation of nanometer particle-modified emulsion and the functionalized application in papermaking paint thereof, will be to whole Coating paper industry produces material impact.
Summary of the invention
It is an object of the invention to provide a kind of art paper coating containing nanometer particle-modified adhesive and preparation method thereof. By regulating and controlling nono calcium carbonate modified Styrene And Butyl-acrylate emulsion consumption in coating, optimizing Compatibility of Coating Color, to change Kind coating paper optical property, printability, raising paper surface hydrophobicity etc..
It is an object of the invention to be achieved through the following technical solutions:
Art paper formulation for coating material containing nanometer particle-modified adhesive:
Kaolin;
Ground calcium carbonate;
The part by weight of the two is 4:1.
On the basis of the addition total amount of Kaolin and ground calcium carbonate,
Modifying cinepazid emulsion 9%, 12%, 15%, 18%;
Sodium hexameta phosphate 0.5%;
Sodium carboxymethyl cellulose 0.8%;
Water repellent agent 0.1%;
Lubricant 0.5%;
Defoamer 0.2%;
Ammonia 0.5%.
Described Kaolin, whiteness 86%ISO, particle diameter < 2um, reaches 97%, refractive index 1.62, the Brookfield viscosity of 71%, < 200cP, 100rpm, (#3 rod).
Described ground calcium carbonate is calcium carbonate superfine powder, and < 2um reaches 90% to particle diameter.
Described modifying cinepazid emulsion be solid content be the nono calcium carbonate modified Styrene And Chloroalkyl Acrylates fourth of 30%
Ester emulsion.It is prepared by following process conditions: styrene: butyl acrylate=1:1, function monomer methyl-prop E pioic acid methyl ester consumption be 10%(on the basis of the total consumption of soft or hard monomer, lower with), nano-calcium carbonate 1%, emulsifying agent dodecyl sulfur The ratio of acid sodium and alkylphenol polyoxyethylene is 1:2, total amount 3 %, co-emulsifier hexadecane 0.6 %, pH adjusting agent NaHCO3 0.5 %, under 70 C, mini-emulsion polymerization reacts 5 h, obtains with nano-calcium carbonate as core, the polymer nucleocapsid as shell Structure particles, mean diameter is about 130 nm.
Described water repellent agent is zirconium carbonate ammonium;Lubricant is calcium stearate;Defoamer is the tert-butyl alcohol.
The preparation method of art paper coating, comprises the steps:
The first step, is added to the water sodium hexameta phosphate, high speed dispersion certain time.
Second step, adds above dispersion liquid, high speed dispersion certain time by Kaolin and ground calcium carbonate.
3rd step, is sequentially added into nono calcium carbonate modified Styrene And Butyl-acrylate emulsion, sodium carboxymethyl cellulose and resists Water preparation, defoamer, lubricant, shear dispersion certain time.
4th step, with ammonia adjusting coating system pH to 8.0, filter discharging to obtain solid content being 65% through 200 eye mesh screens Art paper coating.
In said method, first step rate of dispersion 2400r/min, jitter time 5min.
In said method, second step adds ground calcium carbonate, rate of dispersion 2000r/min, dispersion after being initially charged Kaolin Time 30min.
In said method, the 3rd step rate of dispersion 1000r/min, jitter time 10min.
Advantages of the present invention: the 1. present invention contains the art paper dope preparing process of nanometer particle-modified adhesive often Carrying out under normal temperature and pressure, it is not necessary to add new equipment, technique is simple, and production cost is low;2. the present invention contains nanometer particle-modified After the art paper coating of adhesive is coated with on paper, the defect such as some plano-concave holes on body paper surface is filled to be improved, paper Surface becomes smooth;3. after the art paper coating that the present invention contains nanometer particle-modified adhesive is coated on paper, not only The optical property of paper, surface printing adaptive can be effectively improved, and paper hydrophobicity can be significantly improved.
Detailed description of the invention
Embodiment 1:
Kaolin/ground calcium carbonate 4:1;
On the basis of ground calcium carbonate and kaolinic addition total amount,
Modifying cinepazid emulsion 9.0%;
Sodium hexameta phosphate 0.5%;
Sodium carboxymethyl cellulose 0.8%;
Water repellent agent 0.1%;
Lubricant 0.5%;
Defoamer 0.2%;
Ammonia 0.5%.
First sodium hexameta phosphate is added to the water according to above formula and stirs, be subsequently adding Kaolin and heavy carbonic acid Calcium, and under 2000 r/min, stir 30 min, mixing speed adds adhesive nano-calcium carbonate after being down to 1000 r/min and changes Property Styrene And Butyl-acrylate emulsion, sodium carboxymethyl cellulose and water repellent agent, defoamer, lubricant, continue at 1000 r/min Down cut disperses 10 min, regulates pH to 8.0, finally, filters discharging through 200 eye mesh screens and obtain art paper coating.
The most smooth for body paper is placed on coating machine, depresses idler roller, then spreading rod is pressed in top of form, put down Fixed-wing, takes a certain amount of art paper coating containing nanometer particle-modified adhesive, is evenly distributed on top of form, and startup is pressed Button, Paper Coating complete coating after paper through electrothermal drying (105 DEG C) 1min, both surface coated paper sample.The painting of paper Cloth amount is 20.7 g/m2.Subsequently, coating paper is carried out microscopic appearance observation and quantitative measurement.Result shows, pigment particles Uniform fold makes former paper surface become smooth on body paper surface.Whiteness 75.8%ISO of body paper, light scattering coefficient 63m2/kg、 Absorption coefficient of light 0.46m2/ kg, surface strength 1.1m/s, water absorption 22.1g/m2;After surface is coated with, whiteness 87.7%ISO, light Scattering coefficient 64m2/ kg, absorption coefficient of light 0.48m2/ kg, surface strength 1.3m/s, water absorption 16.3 g/m2
Embodiment 2:
Kaolin/ground calcium carbonate 4:1;
On the basis of ground calcium carbonate and kaolinic addition total amount,
Modifying cinepazid emulsion 12.0%;
Sodium hexameta phosphate 0.5%;
Sodium carboxymethyl cellulose 0.8%;
Water repellent agent 0.1%;
Lubricant 0.5%;
Defoamer 0.2%;
Ammonia 0.5%.
First sodium hexameta phosphate is added to the water according to above formula and stirs, be subsequently adding Kaolin and heavy carbonic acid Calcium, and under 2000 r/min, stir 30 min, mixing speed adds adhesive nano-calcium carbonate after being down to 1000 r/min and changes Property Styrene And Butyl-acrylate emulsion, sodium carboxymethyl cellulose and water repellent agent, defoamer, lubricant, continue at 1000 r/min Down cut disperses 10 min, regulates pH to 8.0, finally, filters discharging through 200 eye mesh screens and obtain art paper coating.
The most smooth for body paper is placed on coating machine, depresses idler roller, then spreading rod is pressed in top of form, put down Fixed-wing, takes a certain amount of art paper coating containing nanometer particle-modified adhesive, is evenly distributed on top of form, and startup is pressed Button, Paper Coating complete coating after paper through electrothermal drying (105 DEG C) 1 min, both surface coated paper sample.The painting of paper Cloth amount is 24.8 g/m2.Subsequently, coating paper is carried out microscopic appearance observation and quantitative measurement.Result shows, pigment particles Uniform fold makes former paper surface become smooth on body paper surface.Whiteness 75.8%ISO of body paper, light scattering coefficient 63m2/kg、 Absorption coefficient of light 0.46m2/ kg, surface strength 1.1m/s, water absorption 22.1 g/m2;After surface is coated with, whiteness 88.4%ISO, Light scattering coefficient 69m2/ kg, absorption coefficient of light 0.51m2/ kg, surface strength 1.5m/s, water absorption 14.5 g/m2
Embodiment 3:
Kaolin/ground calcium carbonate 4:1;
On the basis of ground calcium carbonate and kaolinic addition total amount,
Modifying cinepazid emulsion 15.0%;
Sodium hexameta phosphate 0.5%;
Sodium carboxymethyl cellulose 0.8%;
Water repellent agent 0.1%;
Lubricant 0.5%;
Defoamer 0.2%;
Ammonia 0.5%.
First sodium hexameta phosphate is added to the water according to above formula and stirs, be subsequently adding Kaolin and heavy carbonic acid Calcium, and under 2000 r/min, stir 30 min, mixing speed adds adhesive nano-calcium carbonate after being down to 1000 r/min and changes Property Styrene And Butyl-acrylate emulsion, sodium carboxymethyl cellulose and water repellent agent, defoamer, lubricant, continue at 1000 r/min Down cut disperses 10 min, regulates pH to 8.0, finally, filters discharging through 200 eye mesh screens and obtain art paper coating.
The most smooth for body paper is placed on coating machine, depresses idler roller, then spreading rod is pressed in top of form, put down Fixed-wing, takes a certain amount of art paper coating containing nanometer particle-modified adhesive, is evenly distributed on top of form, and startup is pressed Button, Paper Coating complete coating after paper through electrothermal drying (105 DEG C) 1 min, both surface coated paper sample.The painting of paper Cloth amount is 26.4 g/m2.Subsequently, coating paper is carried out microscopic appearance observation and quantitative measurement.Result shows, pigment particles Uniform fold makes former paper surface become smooth on body paper surface.Whiteness 75.8%ISO of body paper, light scattering coefficient 63m2/kg、 Absorption coefficient of light 0.46m2/ kg, surface strength 1.1m/s, water absorption 22.1 g/m2;After surface is coated with, whiteness 89.2%ISO, Light scattering coefficient 72m2/ kg, absorption coefficient of light 0.52m2/ kg, surface strength 1.8m/s, water absorption 13.8 g/m2
Embodiment 4:
Kaolin/ground calcium carbonate 4:1;
On the basis of ground calcium carbonate and kaolinic addition total amount,
Modifying cinepazid emulsion 18.0%;
Sodium hexameta phosphate 0.5%;
Sodium carboxymethyl cellulose 0.8%;
Water repellent agent 0.1%;
Lubricant 0.5%;
Defoamer 0.2%;
Ammonia 0.5%.
First sodium hexameta phosphate is added to the water according to above formula and stirs, be subsequently adding Kaolin and heavy carbonic acid Calcium, and under 2000 r/min, stir 30 min, mixing speed adds adhesive nano-calcium carbonate after being down to 1000 r/min and changes Property Styrene And Butyl-acrylate emulsion, sodium carboxymethyl cellulose and water repellent agent, defoamer, lubricant, continue at 1000 r/min Down cut disperses 10 min, regulates pH to 8.0, finally, filters discharging through 200 eye mesh screens and obtain art paper coating.
The most smooth for body paper is placed on coating machine, depresses idler roller, then spreading rod is pressed in top of form, put down Fixed-wing, takes a certain amount of art paper coating containing nanometer particle-modified adhesive, is evenly distributed on top of form, and startup is pressed Button, Paper Coating complete coating after paper through electrothermal drying (105 DEG C) 1 min, both surface coated paper sample.The painting of paper Cloth amount is 26.4 g/m2.Subsequently, coating paper is carried out microscopic appearance observation and quantitative measurement.Result shows, pigment particles Uniform fold makes former paper surface become smooth on body paper surface.Whiteness 75.8%ISO of body paper, light scattering coefficient 63m2/kg、 Absorption coefficient of light 0.46m2/ kg, surface strength 1.1m/s, water absorption 22.1 g/m2;After surface is coated with, whiteness 86.3%ISO, Light scattering coefficient 68m2/ kg, absorption coefficient of light 0.50m2/ kg, surface strength 2.0m/s, water absorption 13.6 g/m2

Claims (9)

1. the art paper coating containing nanometer particle-modified adhesive, it is characterised in that: this coating is by Kaolin, heavy carbon Acid calcium, modifying cinepazid emulsion, sodium carboxymethyl cellulose, sodium hexameta phosphate, water repellent agent, defoamer, lubricant, ammonia and water group Become;Wherein Kaolin with the weight ratio of ground calcium carbonate is: 4:1;If Kaolin is A with the gross weight of ground calcium carbonate, then change The weight of property styrene-acrylic emulsion is 9-18%A, and the weight of sodium carboxymethyl cellulose is 0.80%A, and the weight of sodium hexameta phosphate is 0.5% A, water repellent agent 0.10%A, lubricant 0.50A%, defoamer 0.20%A, ammonia 0.50 A%.
Art paper coating the most according to claim 1, it is characterised in that: described Kaolin, whiteness 86%ISO, particle diameter < 2um, reaches 97%, refractive index 1.62, the Brookfield viscosity of 71%, < 200cP, 100rpm.
Art paper coating the most according to claim 1, it is characterised in that: described ground calcium carbonate is calcium carbonate superfine powder, grain < 2um reaches 90% in footpath.
Art paper coating the most according to claim 1, it is characterised in that: described modifying cinepazid emulsion be solid content be 30% Nono calcium carbonate modified Styrene And Butyl-acrylate emulsion;It is prepared by following process conditions: styrene: acrylic acid Butyl ester=1:1, on the basis of the total consumption of soft or hard monomer, function monomer methyl methacrylate consumption is 10%, nano-calcium carbonate 1%, The ratio of emulsifier sodium lauryl sulfate and alkylphenol polyoxyethylene is 1:2, total amount 3 %, co-emulsifier hexadecane 0.6 %, pH adjusting agent NaHCO3 0.5 %, under 70 C, mini-emulsion polymerization reacts 5 h, obtains with nano-calcium carbonate as core, polymer For the nucleocapsid structure microgranule of shell, mean diameter is about 130 nm.
Art paper coating the most according to claim 1, it is characterised in that: described water repellent agent is zirconium carbonate ammonium;Lubricant is Calcium stearate;Defoamer is the tert-butyl alcohol.
6. the preparation method of an art paper coating as claimed in claim 1, it is characterised in that comprise the steps:
The first step, is added to the water sodium hexameta phosphate, high speed dispersion certain time;
Second step, adds above dispersion liquid, high speed dispersion certain time by Kaolin and ground calcium carbonate;
3rd step, is sequentially added into modifying cinepazid emulsion, sodium carboxymethyl cellulose and water repellent agent, defoamer, lubricant, shears dispersion Certain time;
4th step, with ammonia adjusting coating system pH to 8.0, filters discharging through 200 eye mesh screens and obtains the copper that solid content is 65% Millboard coating.
The preparation method of art paper coating the most according to claim 6, it is characterised in that: first step rate of dispersion 2400r/ Min, jitter time 5min.
The preparation method of art paper coating the most according to claim 6, it is characterised in that: after second step is initially charged Kaolin Add ground calcium carbonate, rate of dispersion 2000r/min, jitter time 30min.
The preparation method of art paper coating the most according to claim 6, it is characterised in that: the 3rd step rate of dispersion 1000r/ Min, jitter time 10min.
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CN106120445A (en) * 2016-06-28 2016-11-16 金华盛纸业(苏州工业园区)有限公司 A kind of high print gloss art paper coating and preparation method thereof
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