CN101270558B - High-gloss high-opacity coefficient paint for papers, preparation method and application thereof - Google Patents
High-gloss high-opacity coefficient paint for papers, preparation method and application thereof Download PDFInfo
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- CN101270558B CN101270558B CN2008100278115A CN200810027811A CN101270558B CN 101270558 B CN101270558 B CN 101270558B CN 2008100278115 A CN2008100278115 A CN 2008100278115A CN 200810027811 A CN200810027811 A CN 200810027811A CN 101270558 B CN101270558 B CN 101270558B
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Abstract
The invention discloses a dope used for high-luster high-opacity paper as well as a manufacture method and application thereof. The dope used for paper is manufactured and obtained according to the following methods: dispersing a microfine fiber into a dispersing suspension liquid with a mass concentration of 10 to 30 percent, namely obtaining a microfine fiber pulp, mixing with a macromolecule aqueous liquid with a mass concentration of 10 to 50 percent and stirring uniformly, namely obtaining the dope used for high-luster high-opacity paper; the oven dry mass proportion of the microfine fiber and the macromolecule aqueous liquid is 1.5:1 to 4:1. Compared with the existing dope used for paper, the paper coat formed by the dope used for paper of the invention has more excellent lustrousness, opacity and brightness.
Description
Technical field
The invention belongs to the material Application Areas, particularly a kind of high-gloss high-opacity coefficient paint for papers and preparation method thereof and the application in improving the paper surface nature.
Background technology
Microfibre, also claim superfine fibre, claim that again (dawn is the Denier unit of fiber to super fine denier, and how many grams are 9000 meters long fibre weight be, how many dawn are its fiber number be exactly), composition mainly contains terylene (polyester), polyamide fibre (polyamide), viscose glue or polypropylene fibre etc.It is development in recent years functional fibre a kind of rapidly, is called as the synthetic fiber of a new generation.
Microfibre has become a focus textile raw material of each weaving manufacturing enterprise exploitation grade textiles both at home and abroad, and its use can effectively improve the class and the added value of product, and its market prospects are very good.The main performance of microfibre comprises:
(1) microfibre is very little owing to diameter, so its bending stiffness is very little.
(2) specific area of microfibre is very big, and interfibrous space is between drop diameter and water vapour diameter of droplets, and therefore ultra-fine fabric has the water-proof air-permeable effect.
(3) microfibre has many fine holes between microfiber, forms the capillary structure, has high-hydroscopicity.
(4) microfibre also can increase the layer structure of silk, makes the fibrous inside reverberation finer and smoother in surface distributed, makes it to have the graceful gloss as the real silk.
Paint for papers is a kind of mixture that is used to improve into the paper surface nature, is made up of pigment/adhesive, the coating that forms can give finished product high optical property, as high glaze, high opacity and high brightness, realize that these targets often depend on the characteristic of pigment in the used coating, as cataloid is a kind of first-class pigment of high glaze color spraying paper coating, also has silica, aluminium oxide and the specialty minerals pigment of other pattern.Microfibre generally is applied to field of textiles, also is not used for the application and development of pigment at present on coating.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art part, primary and foremost purpose of the present invention is to provide a kind of high-gloss high-opacity coefficient paint for papers, the present invention is used as microfibre as pigment applications and makes the field in coating, and the paint for papers that obtains has than existing coating and has more excellent glossiness, opacity and brightness.
Another object of the present invention is to provide a kind of preparation method of above-mentioned paint for papers.
A further object of the present invention is to provide the purposes of above-mentioned microfiber coating aspect the paper coating, can improve the paper surface nature, particularly significantly improve into the opacity and the glossiness of paper, to low weight paper such as newsprint, tissue paper etc. printing process require the opacity height and paper quantitatively very low paper kind be even more important.
The present invention is achieved through the following technical solutions: a kind of high-gloss high-opacity coefficient paint for papers, be to prepare as follows: the dispersion suspension liquid that microfibre is dispersed into mass concentration 10～30% promptly obtains the microfibre slurry, microfibre slurry and mass concentration are 10～50% macromolecule aqueous solution, after stirring, promptly obtain high-gloss high-opacity coefficient paint for papers, the over dry mass ratio of the described microfibre slurry and the macromolecule aqueous solution is 1.5: 1～4: 1; More than high 15～25 degree of the gloss of high-gloss high-opacity coefficient paint for papers ratio nano silica paint for papers of the present invention, more than high 13 degree of opacity.
In order to realize the present invention better, the described macromolecule aqueous solution (as adhesive) is aqueous high molecular solution, comprises amidin, polyvinyl alcohol (PVOH) aqueous solution or the contour molecular water solution of the latex aqueous solution.
The time of described stirring is 30 minutes, and rotating speed is 200 rev/mins.
The solid content of described high-gloss high-opacity coefficient paint for papers is 15～30%; The viscosity of described high-gloss high-opacity coefficient paint for papers is 700～1600cp (6#, 100rpm, Brookfield viscosimeter).
Described high-gloss high-opacity coefficient paint for papers can equally with conventional paint for papers add a spot of auxiliary agent as required, as defoamer, lubricant, preservative agent, thickener, water retention agent etc.
The preparation method of above-mentioned high-gloss high-opacity coefficient paint for papers, comprise the steps: that the dispersion suspension liquid that microfibre is dispersed into mass concentration 10～30% promptly obtains the microfibre slurry, microfibre slurry and mass concentration are 10～50% macromolecule aqueous solution, after stirring, promptly obtain high-gloss high-opacity coefficient paint for papers; The over dry mass ratio of the described microfibre slurry and the macromolecule aqueous solution is 1.5: 1～4: 1.
Described high-gloss high-opacity coefficient paint for papers can directly apply to the paper coating, is particularly suitable for low quantitatively coating, the coating of color spray paper, can improve into paper glossiness, opacity and brightness greatly, reduces the coating consumption.The method that described paint for papers is applied to the paper coating is: above-mentioned high-gloss high-opacity coefficient paint for papers evenly is coated on the body paper, and coating weight is 3～12 gram/rice
2(gsm).
The present invention has following advantage and beneficial effect with respect to prior art:
At first, improving into (as shown in Figure 1, 2) aspect the paper gloss, paint for papers of the present invention is than high 15 degree of one-tenth paper glossiness above (75 ° of gloss) of silica coating.In addition, aspect one-tenth paper opacity (shown in Fig. 3,4), more than high 10 degree of one-tenth paper opacity of paint for papers of the present invention than silica coating.In addition, coating increase of the present invention becomes paper brightness (shown in Fig. 5,6) amplitude than more than big 4 degree of silica coating.At last, aspect coating weight, coated paper of the present invention is used with gas phase nano silica coating and is compared, and can save the consumption of half.
Compare with existing paint for papers, the paper and coating that paint for papers of the present invention forms has excellent more glossiness, opacity and brightness.The success of paint for papers of the present invention has proved that microfibre can be applicable in the high-grade paper coating fully, has opened up the frontier that microfibre is used.
Description of drawings
Fig. 1 is that PVOH (polyvinyl alcohol) is as adhesive (being the macromolecule aqueous solution), the silica coating of different proportionings and the coating weight of paint for papers of the present invention and glossiness relation.(" Si " expression silica among the figure, " PVOH " represents polyvinyl alcohol, and " MF " refers to microfibre, and " 8/2 Si+PVOH " refers to that silica (being pigment) and adhesive (PVOH) weight ratio are 8: 2, and other are similar.)
Fig. 2 is that starch is as adhesive (being the macromolecule aqueous solution), the silica coating of different ratios of raw materials and the coating weight of paint for papers of the present invention and glossiness relation.(" Si " expression silica among the figure, " Starch " represents starch, and " MF " refers to microfibre, and " 8/2 Si+Starch " refers to that silica (being pigment) and adhesive (starch) weight ratio are 8: 2, and other are similar.)
Fig. 3 is that PVOH is as adhesive (being the macromolecule aqueous solution), the silica coating of different ratios of raw materials and the coating weight of paint for papers of the present invention and the relation of opacity.(" Si " expression silica among the figure, " PVOH " represents polyvinyl alcohol, and " MF " refers to microfibre, and " 8/2 Si+PVOH " refers to that silica (being pigment) and adhesive (PVOH) weight ratio are 8: 2, and other are similar.)
Fig. 4 is that starch is as adhesive (being the macromolecule aqueous solution), the silica coating of different ratios of raw materials and the coating weight of paint for papers of the present invention and the relation of opacity.(" Si " expression silica among the figure, " Starch " represents starch, and " MF " refers to microfibre, and " 8/2 Si+Starch " refers to that silica (being pigment) and adhesive (starch) weight ratio are 8: 2, and other are similar.)
Fig. 5 is that PVOH is as adhesive (being the macromolecule aqueous solution), the silica coating of different ratios of raw materials and the coating weight of paint for papers of the present invention and the relation of brightness.(" Si " expression silica among the figure, " PVOH " represents polyvinyl alcohol, and " MF " refers to microfibre, and " 8/2 Si+PVOH " refers to that silica (being pigment) and adhesive (PVOH) weight ratio are 8: 2, and other are similar.)
Fig. 6 is that starch is as adhesive (being the macromolecule aqueous solution), the silica coating of different ratios of raw materials and the coating weight of paint for papers of the present invention and the relation of brightness.(" Si " expression silica among the figure, " Starch " represents starch, and " MF " refers to microfibre, and " 8/2 Si+Starch " refers to that silica (being pigment) and adhesive (starch) weight ratio are 8: 2, and other are similar.)
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Embodiment 1
The dispersion suspension liquid that microfibre is dispersed into mass concentration 10% promptly obtains the microfibre slurry, microfibre slurry and mass concentration are that 30% the macromolecule aqueous solution (amidin) mixes, after stirring, promptly obtain high-gloss high-opacity coefficient paint for papers, the over dry mass ratio of the described microfibre slurry and the macromolecule aqueous solution is 1.5: 1.
The solid content of above-mentioned high-gloss high-opacity coefficient paint for papers is 15%, and viscosity is 1200cp; When coating weight 10gsm, become the paper glossiness to improve 18 degree, become the paper opacity to improve 12 degree, become paper brightness to improve 3 degree.
Be 14% when above-mentioned paint for papers is applied in glossiness, opacity is 69%, brightness is on 85% the paper substrate time, the one-tenth paper glossiness that coating weight obtains during for 10gsm is 32%, opacity is 81%, brightness is 88 degree.
The dispersion suspension liquid that microfibre is dispersed into mass concentration 20% promptly obtains the microfibre slurry, microfibre slurry and mass concentration are that 50% the macromolecule aqueous solution (the latex aqueous solution) mixes, stirred 30 minutes, rotating speed is 200 rev/mins, evenly, promptly obtain high-gloss high-opacity coefficient paint for papers, the over dry mass ratio of the described microfibre slurry and the macromolecule aqueous solution is 4: 1.
The solid content of above-mentioned high-gloss high-opacity coefficient paint for papers is 30%, and viscosity is 700cp; When coating weight is 8gsm, becomes the paper glossiness to improve 26%, become the paper opacity to improve 18%, become paper brightness to improve 3%.
Be 14% when above-mentioned paint for papers is applied in glossiness, opacity is 69%, brightness is on 85% the paper substrate time, the one-tenth paper glossiness that coating weight obtains during for 8gsm is 40%, opacity is 87%, brightness is 88 degree.
Embodiment 3
The dispersion suspension liquid that microfibre is dispersed into mass concentration 30% promptly obtains the microfibre slurry, microfibre slurry and mass concentration are that 10% the macromolecule aqueous solution (polyvinyl alcohol water solution) mixes, after stirring, promptly obtain high-gloss high-opacity coefficient paint for papers, the over dry mass ratio of the described microfibre slurry and the macromolecule aqueous solution is 3: 1.
The solid content of above-mentioned high-gloss high-opacity coefficient paint for papers is 20%, and viscosity is 900cp; When coating weight 10gsm, become the paper glossiness to improve 23 degree, become the paper opacity to improve 15 degree, become paper brightness to improve 3 degree.
Be 14% when above-mentioned paint for papers is applied in glossiness, opacity is 69%, brightness is on 85% the paper substrate time, the one-tenth paper glossiness that coating weight obtains during for 10gsm is 37%, opacity is 84%, brightness is 88 degree.
The dispersion suspension liquid that microfibre is dispersed into mass concentration 25% promptly obtains the microfibre slurry, microfibre slurry and mass concentration are that 20% the macromolecule aqueous solution (polyvinyl alcohol water solution) mixes, after stirring, promptly obtain high-gloss high-opacity coefficient paint for papers, the over dry mass ratio of the described microfibre slurry and the macromolecule aqueous solution is 3: 1.
The solid content of above-mentioned high-gloss high-opacity coefficient paint for papers is 23%, and viscosity is 1600cp; When coating weight 10gsm, become the paper glossiness to improve 24 degree, become the paper opacity to improve 15 degree, become paper brightness to improve 3 degree.
Be 14% when above-mentioned paint for papers is applied in glossiness, opacity is 69%, brightness is on 85% the paper substrate time, the one-tenth paper glossiness that coating weight obtains during for 10gsm is 38%, opacity is 84%, brightness is 88 degree.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (6)
1. high-gloss high-opacity coefficient paint for papers, it is characterized in that: described paint for papers is to prepare as follows: the dispersion suspension liquid that microfibre is dispersed into mass concentration 10～30% promptly obtains the microfibre slurry, microfibre slurry and mass concentration are 10～50% macromolecule aqueous solution, after stirring, promptly obtain high-gloss high-opacity coefficient paint for papers, the over dry mass ratio of the described microfibre slurry and the macromolecule aqueous solution is 1.5: 1～4: 1; The described macromolecule aqueous solution is amidin, polyvinyl alcohol water solution or the latex aqueous solution.
2. the preparation method of the described a kind of high-gloss high-opacity coefficient paint for papers of claim 1, it is characterized in that comprising the steps: that the dispersion suspension liquid that microfibre is dispersed into mass concentration 10～30% promptly obtains the microfibre slurry, microfibre slurry and mass concentration are 10～50% macromolecule aqueous solution, after stirring, promptly obtain high-gloss high-opacity coefficient paint for papers; The over dry mass ratio of the described microfibre slurry and the macromolecule aqueous solution is 1.5: 1～4: 1; The described macromolecule aqueous solution is amidin, polyvinyl alcohol water solution or the latex aqueous solution.
3. the preparation method of a kind of high-gloss high-opacity coefficient paint for papers according to claim 2, it is characterized in that: the time of described stirring is 30 minutes, rotating speed is 200 rev/mins.
4. the preparation method of a kind of high-gloss high-opacity coefficient paint for papers according to claim 2, it is characterized in that: the solid content of described high-gloss high-opacity coefficient paint for papers is 15～30%; The viscosity of described high-gloss high-opacity coefficient paint for papers is 700～1600cp.
5. the application of the described a kind of high-gloss high-opacity coefficient paint for papers of claim 1 in the paper coating.
6. the application of a kind of high-gloss high-opacity coefficient paint for papers according to claim 5 in the paper coating, it is characterized in that: the method that described high-gloss high-opacity coefficient paint for papers is used in the paper coating is: high-gloss high-opacity coefficient paint for papers evenly is coated on the body paper, and coating weight is 3～12 gram/rice
2
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100278115A CN101270558B (en) | 2008-04-30 | 2008-04-30 | High-gloss high-opacity coefficient paint for papers, preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100278115A CN101270558B (en) | 2008-04-30 | 2008-04-30 | High-gloss high-opacity coefficient paint for papers, preparation method and application thereof |
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| Publication Number | Publication Date |
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| CN101270558A CN101270558A (en) | 2008-09-24 |
| CN101270558B true CN101270558B (en) | 2010-06-16 |
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| CN2008100278115A Expired - Fee Related CN101270558B (en) | 2008-04-30 | 2008-04-30 | High-gloss high-opacity coefficient paint for papers, preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013189550A1 (en) * | 2012-06-22 | 2013-12-27 | Styron Europe Gmbh | A coated substrate and system and method for making the same |
| CN111809441A (en) * | 2020-05-26 | 2020-10-23 | 湖南天琪智慧印刷有限公司 | Thermal sensitive paper with high gloss and manufacturing method thereof |
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Granted publication date: 20100616 Termination date: 20110430 |