CN102677549B - Environment-friendly coated white board - Google Patents
Environment-friendly coated white board Download PDFInfo
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- CN102677549B CN102677549B CN201210007151.0A CN201210007151A CN102677549B CN 102677549 B CN102677549 B CN 102677549B CN 201210007151 A CN201210007151 A CN 201210007151A CN 102677549 B CN102677549 B CN 102677549B
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Abstract
The invention discloses an environment-friendly coated white board which sequentially comprises a board body paper bottom layer, a core layer, a surface layer, a bottom coated layer and a surface coated layer from bottom to top. The whiteness of the coated white board ranges from 78% to 88%, and the quantification of the coated white board ranges from 200g/m<2> to 450g/m<2>. The environment-friendly coated white board is characterized in that the board surface layer is made of recycled pulp from waste paper of old corrugated cartons OCC and uncolored wood pulp which are mixed, or is made of one of the recycled pulp from the waste paper of old corrugated cartons OCC and the uncolored wood pulp, the quantification of the board surface layer ranges from 40g/m<2> to 80g/m<2>, the quantification of each of the bottom coated layer and the surface coated layer ranges from 6g/m<2> to 20g/m<2>, and the total coating quantity ranges from 12g/m<2> to 40g/m<2>. The coated white board is mainly made of the unbleached recycle pulp of the waste paper, has the advantages of capabilities of saving wood resources and reducing beaching pollution, low production cost, fine printability, attractive appearance, high strength and the like, and can replace traditional coated kraft card boards and coated white-surface white boards to manufacture packaging cartons and folded cartons such as wine boxes, boxes for articles for daily life, healthcare product boxes, electronic product boxes and high-grade clothing boxes.
Description
Technical field
The invention belongs to pulping and paper-making field, relate to a kind of environment-friendly type coating white board.
Background technology
Good looking appearance, be applicable to various colored printings, the application in high-grade goods packaging of coated white paperboard (claiming again folded box cardboard) taking waste paper regenerated slurry as main raw material is more and more extensive.For the whiteness that makes coated white paperboard reach consumer's needs (claims again brightness, standard GB/T/T 10335.4-2004 specifies that the whiteness in high-class product and Grade A front is respectively higher than 80% and 78%), at present the coated white paperboard on domestic and international market all uses a large amount of bleached wood pulps or/and high whiteness office waste paper bleaching deinking recycled pulp in the surface layer of cardboard body paper, and consumption is generally at 20-60g/m
2, see figure-1.But, use in a large number bleached pulp not only to increase the cost of material of coated white paperboard, also increase the pollution of bleaching process to environment.
Analyze from paper technology aspect, the whiteness of coated white paperboard not only relies on coated board body paper, also relies on the synergic whitening effect between coating weight and coating composition and component.Improving coatings chemistry is the important means that paper industry is manufactured high-whiteness coated paper.By retrieval, find that the patent of invention on July 2nd, 2008 open (publication number: CN101210399A), by add the composite titanium dioxide Chinese white containing titanium dioxide of 15-65 part in coating, can save the white slurry of 20-50% in coated white paperboard.But adding expensive special composite titanium dioxide has increased the manufacturing cost of coated white paperboard.The environment-friendly type by the cardboard containing bleached pulp is not manufactured that the invention discloses a kind of economic environmental protection, applicable various colored printings is coated with white board and manufacture method thereof.
Summary of the invention
The object of the invention is to overcome prior art deficiency, provide a kind of and be coated with white board taking the environment-friendly type that the environment-friendly type cardboard containing bleached pulp is not produced by pigment application as base paper (body paper).
The technical scheme that the present invention realizes object is as follows:
A kind of environment-friendly type coating white board, by supreme coated board body paper, priming coat, the finishing coat of comprising successively in the end, is quantitatively 200-450g/m
2, described coated board body paper comprises bottom, sandwich layer, surface layer, it is characterized in that: described surface layer mixed by the waste paper regenerated slurry of old carton OCC and true qualities wood pulp or one of form, be quantitatively 40-80g/m
2; The quantitative of priming coat and finishing coat is 6-20g/m
2, coating total amount is 12-40g/m
2,
The coating solid content of described priming coat between 50-70%, its formula comprise following component and mass fraction as follows:
The solid content of the coating of described finishing coat is between 50-70%, and its formula comprises that following component and ratio of quality and the number of copies thereof are:
And, the equal painting bottom coating in described coated board both sides, finishing coat.
And, described coated board body paper bottom mixed by old newspaper/outdated magazine Deinking Pulp and old carton OCC recycled pulp or one of form, be quantitatively 40-100g/m
2.
And, described sandwich layer mixed by the waste paper regenerated slurry of old newspaper recycled pulp, mixed waste paper recycled pulp and OCC or one of form, be quantitatively 30-230g/m
2.
And, between described sandwich layer and surface layer, have face lining, described lining mixed by old newspaper/outdated magazine recycled pulp, deinking of Waste Newspaper slurry and the waste paper regenerated slurry of OCC or one of form, be quantitatively 0-110g/m
2;
And the whiteness of described coated white paperboard is 78-88%.
And, between the surface layer and priming coat of bodystock paper, carrying out the top sizing of surface layer, resin added is 0-6g/m
2.
And, in the coating of priming coat and finishing coat, also comprising conventional coating additive, coating additive comprises micro-defoamer, dispersant, lubricant, water repellent agent.
And, below bottom, carrying out applying glue, resin added is 0-5g/m
2.
Advantage of the present invention and good effect are:
1, the present invention utilizes the feature of coated white paperboard sandwich construction, adopts the coating of optimizing to improve optical property and the printability of bodystock paper, and the high-intensity coated board body paper of manufacturing paper with pulp taking waste paper regenerated slurry as main raw material, saves timber resources.The coated white paperboard of the present invention's design has been saved expensive bleached pulp, and not only cost of material is low, and reduces bleaching, belongs to environmental protection type packing material.
2, the present invention utilizes in coating and is coated with the synergic whitening effect of the each component of interlayer, has realized and has adopted conventional coated paper pigment calcium carbonate and the kaolin coated white paperboard with the lower higher whiteness of coating weight low-cost production.Because total coating weight is less, generally at 30g/m
2left and right, reduced the pigment coated negative effect to coated white paperboard mechanical property, retained the high-intensity characteristic of coated white paperboard.
3, the present invention does not have rigid requirement to the raw material of primary coat and painting coating, can use the pigment of different qualities in the coating of different coating.Meanwhile, the present invention replaces synthetic latex that part is expensive as adhesive using the starch of cheap environmental protection in bottom-coating, brightening agent OBA only in investment precoat, use and also consumption less, further reduced the production cost of coated white paperboard.
4, the economic environmental protection of coated white paperboard of the present invention, good looking appearance, be applicable to various colored printings, can replace in printing packaging field traditional coated craft paper and coating fine flour white board to manufacture high-grade corrugated case and packing carton as commodity box, health products box, wine box, electronic product box, high-grade clothing box etc.
Brief description of the drawings
Fig. 1 is the coated white paperboard structural representation of 4 layers of fine flour production that domestic and international paper-making industry is at present general; Wherein, 1-1: coating layer-finishing coat, quantitatively 6-18g/m
2, 1-2: coating layer-priming coat, quantitatively 6-18g/m
2, 1-3: surface layer-bleached wood pulp/mixing office waste paper bleaching deinking recycled pulp, quantitatively 20-60g/m
2, 1-4: face lining-deinking of Waste Newspaper slurry/outdated magazine Deinking Pulp/OCC recycled pulp, quantitatively 30-80g/m
2, 1-5: sandwich layer-old newspaper/mixed waste paper/OCC recycled pulp, quantitatively 30-220g/m
2, 1-6: the waste paper regenerated slurry of bottom-deinking of Waste Newspaper slurry/OCC, quantitatively 50-90g/m
2;
Fig. 2 is that 3 layers of environment-friendly type that does not contain the production of bleached pulp of the present invention are coated with white board structural representation; Wherein, 2-1: coating layer-finishing coat, quantitatively 6-20g/m
2, 2-2: coating layer-priming coat, quantitatively 6-20g/m
2, 2-3: surface layer-not waste paper regenerated slurry of bleached wood pulp/OCC, quantitatively 50-80g/m
2, 2-5: sandwich layer-old newspaper/OCC waste paper/mixed waste paper recycled pulp, 40-230g/m
2, 2-6: bottom-deinking of Waste Newspaper slurry/outdated magazine Deinking Pulp/OCC recycled pulp, quantitatively 50-90g/m
2
Fig. 3 is that 4 layers of environment-friendly type that does not contain the production of bleached pulp of the present invention are coated with white board structural representation, wherein, and 3-1: coating layer-finishing coat, quantitatively 6-20g/m
2, 3-2: coating layer-priming coat, quantitatively 6-20g/m
2, 3-3: surface layer-not waste paper regenerated slurry of bleached wood pulp/OCC, quantitatively 50-80g/m
2, 3-4: the waste paper regenerated slurry of face lining-old newspaper recycled pulp/OCC, quantitatively 30-110g/m
2, 3-5: sandwich layer-old newspaper/OCC waste paper/other waste paper regenerated slurries, quantitatively 30-200g/m
2, 3-6: the waste paper regenerated slurry of bottom-deinking of Waste Newspaper recycled pulp/OCC, quantitatively 50-90g/m
2.
Detailed description of the invention
For the ease of those skilled in the art's understanding, below in conjunction with embodiment, the present invention will be further described, and following embodiment is illustrative, is not limiting the scope of the present invention.
Taking an environment-friendly type coating white board of not producing by pigment application as base paper containing the cardboard of bleached pulp, comprise the bodystock paper of manufacturing paper with pulp, bodystock paper is carried out top sizing, on the cardboard body paper of applying glue, carries out primary coat, carries out face painting with finishing coat coating with bottom coating.Described coated white paperboard be quantitatively 200-450g/m
2, in described bottom coating, contain starch, in described finishing coat coating, contain fluorescent whitening agent, coating layer total amount is 12-40g/m
2, whiteness is 78-88%.The applying glue liquid that is 8-18% with solid content at the back side of coated board carries out applying glue, and described back side applying glue liquid is mainly by the 3-8% that starch and PVAC polyvinylalcohol form, PVA quality is starch quality, and back side glue application layer is quantitatively 0-6g/m
2.For reducing costs, in the bottom-coating of described coating, can adopt 55 grades of more cheap grinding calcium carbonates.
The body paper of coated white paperboard of the present invention comprises surface layer, sandwich layer and bottom.Described surface layer by the waste paper regenerated slurry of the higher OCC of chemical pulp content and not bleached wood pulp (replacing the bleached wood pulp in traditional coated white paperboard surface layer) mix or one of form, to improve surface strength and the mechanical property of coated white paperboard, the quantitative of described surface layer is 40-80g/m
2; Described sandwich layer mainly increases thickness and the deflection of white board, adopt the waste paper regenerated slurry of price old newspaper, outdated magazine, mixed waste paper and old carton of OCC etc. lower, that bulk is higher, content of mechanical pulp is higher to mix or one of composition, be quantitatively 40-230g/m
2; Between described surface layer and sandwich layer, can have face lining, face lining mixed by old newspaper/outdated magazine recycled pulp, deinking of Waste Newspaper slurry and the waste paper regenerated slurry of OCC or one of form, be quantitatively 0-110g/m
2; Described bottom adopt deinking of Waste Newspaper slurry, outdated magazine Deinking Pulp and OCC recycled pulp mix or one of composition, be quantitatively 40-90g/m
2, suitably to improve the outward appearance at the coated white paperboard back side.
Between the surface layer and priming coat of bodystock paper, before coating, carry out top sizing at described bodystock paper, resin added is 0-6g/m
2, applying glue liquid comprises that starch and glue sizing auxiliary agent are as alkyl succinic anhydride (ASA), alkyl ketene dimer (AKD), the 0-12% that sizing agent content is starch quality, and applying glue fluid solid content is at 8-18%.
And, in the coating of priming coat and finishing coat, also comprising conventional coating additive, coating additive comprises micro-defoamer, dispersant, lubricant, water repellent agent.
And, curl for fear of cardboard, below bottom, carry out applying glue, the solid content of described glue application layer applying glue liquid is 8-18%, its key component comprises starch and PVAC polyvinylalcohol, the 2-8% that PVA mass fraction is starch quality, resin added is 0-5g/m
2.
Embodiment 1
With 3 layers be not or not bodystock paper is produced 250g/m containing the cardboards of bleached pulp
2coated white paperboard:
Figure the-2nd, the present invention design taking 3 layers of coated white paperboard of not producing as bodystock paper containing the cardboard of bleached pulp, the process program adopting is:
(1) manufacturing paper with pulp with triple-lap net former is quantitatively 215g/m
2not containing the bodystock paper of bleached pulp, wherein:
Surface layer: by 20% not bleaching softwood pulp, the waste paper regenerated slurry of 80% old carton OCC mixes and forms, and is quantitatively 60g/m
2;
Sandwich layer: being made up of 45% old newspaper recycled pulp, 40% mixed waste paper recycled pulp, the waste paper regenerated slurry of 15% old carton OCC, is quantitatively 95g/m
2;
Bottom: being made up of 100% deinking of Waste Newspaper recycled pulp, is quantitatively 60g/m
2.
(2) with applying glue equipment, applying glue processing is carried out in cardboard front, applying glue liquid is made up of starch and glue sizing auxiliary agent alkyl succinic anhydride (ASA), and wherein ASA quality accounts for 5% of starch quality, and applying glue fluid solid content is 12%, and resin added is 3g/m
2.
(3) with coating apparatus and bottom coating, the unbeached board of applying glue is carried out to surperficial primary coat, described layer bottom coating solid content is 61%, and coating weight is 13g/m
2, its formula comprises following component and mass fraction following (conventional according to coated paper industry, to commonly use coating pigment calcium carbonate and kaolinic quality sum as 100 parts of calculating, lower same) thereof:
(4) with coating apparatus and finishing coat coating, the unbeached board of primary coat is carried out to surperficial face painting, the solid content of described finishing coat coating is 61%, and coating weight is 17g/m
2, its formula comprises that following component and ratio of quality and the number of copies thereof are:
(5) with applying glue equipment, applying glue is carried out in the cardboard back side, the solid content of back side applying glue liquid is 12%, and its key component comprises starch and PVAC polyvinylalcohol, and PVA mass fraction is starch quality 5%, and back side resin added is 3.0g/m
2.
(6), after drying, soft calendaring, obtain whiteness and be 81.7 ± 1% coated white paperboard.
Embodiment 2:
With 4 layers of 350g/m not producing containing the bodystock paper of bleached pulp
2coated white paperboard
Figure the-3rd, the coated white paperboard that 4 layers of bodystock paper of use of the present invention are produced, the process program adopting is:
(1) with the four folded net formers quantitative 315g/m that manufactures paper with pulp
2not containing the bodystock paper of bleached pulp, wherein:
Surface layer: by 20% not bleaching softwood pulp, the waste paper regenerated slurry of 80% old carton OCC mixes and forms, and is quantitatively 60g/m
2;
Lining: being mixed and formed by 80% old newspaper recycled pulp, the waste paper regenerated slurry of 20%OCC, is quantitatively 95g/m
2;
Sandwich layer: being made up of 50% old newspaper recycled pulp, 40% mixed waste paper recycled pulp, the waste paper regenerated slurry of 10%OCC, is quantitatively 100g/m
2;
Bottom: being made up of 100% deinking of Waste Newspaper recycled pulp, is quantitatively 60g/m
2,
(2) with applying glue equipment, applying glue processing is carried out in cardboard front, applying glue liquid is made up of starch and glue sizing auxiliary agent alkyl succinic anhydride (ASA), and wherein ASA quality accounts for 5% of starch quality, and applying glue fluid solid content is 12%, and resin added is 3g/m
2.
(3) with coating apparatus and precoating coating, the unbeached board of applying glue is carried out to surperficial primary coat, described bottom coating solid content is 61%, and coating weight is 13g/m
2, its formula comprise following component and mass fraction as follows:
(4) with coating apparatus and painting coating, the unbeached board of primary coat is carried out to surperficial face painting, the solid content of described finishing coat coating is 61%, and coating weight is 17g/m
2, its formula comprises that following component and ratio of quality and the number of copies thereof are:
(5) with applying glue equipment, applying glue is carried out in the cardboard back side, the solid content of back side applying glue liquid is 12%, and its key component comprises starch and PVAC polyvinylalcohol, and PVA mass fraction is starch quality 5%, and back side resin added is 3.0g/m
2.
(6), after drying, soft calendaring, obtain whiteness and be 81.9 ± 1% coated white paperboard.
In above embodiment, all raw materials are commercially available prod, all belong to chemicals for papermaking, except specified otherwise, indicating that the composition of function all has the generality of field of papermaking, do not have particularity, is techniques well known, do not list details, but all can not affect implementation of the present invention, the apparatus for coating using is this area usual means, without particular/special requirement.In the present invention not containing the coated board body paper of bleached pulp refer to do not bleach that waste paper regenerated slurry and primary colors wood pulp mix or one of the brown cardboard of manufacturing paper with pulp.The coated white paperboard the key technical indexes that the present invention produces is as following table-1.The coated white paperboard technical indicator relating in table 1 is all according to the definition in GB/T 10335.4-2004, and detection method is with the record in GB, without particular meaning.
Table-1: the environment-friendly type coating white board the key technical indexes that the present invention produces.
| Coated white paperboard performance quantitative | 250g/m 2 | 350g/m 2 |
| Whiteness (brightness), % | ≥80％ | ≥80％ |
| Lateral stiffness, mN.m | ≥2.5 | ≥6.8 |
| PPS print surface roughness, um | ≤2.0 | ≤2.0 |
| Print gloss, % | ≥88 | ≥88 |
| Ink absorption, % | 15-30 | 15-30 |
Claims (1)
1. an environment-friendly type coating white board, is characterized in that: coating and preparation method are as follows:
With 4 layers of 350g/m not producing containing the bodystock paper of bleached pulp
2coated white paperboard
(1) with the four folded net formers quantitative 315g/m that manufactures paper with pulp
2not containing the bodystock paper of bleached pulp, wherein:
Surface layer: by 20% not bleaching softwood pulp, the waste paper regenerated slurry of 80% old carton OCC mixes and forms, and is quantitatively 60g/m
2;
Lining: being mixed and formed by 80% old newspaper recycled pulp, the waste paper regenerated slurry of 20%OCC, is quantitatively 95g/m
2;
Sandwich layer: being made up of 50% old newspaper recycled pulp, 40% mixed waste paper recycled pulp, the waste paper regenerated slurry of 10%OCC, is quantitatively 100g/m
2;
Bottom: being made up of 100% deinking of Waste Newspaper recycled pulp, is quantitatively 60g/m
2,
(2) with applying glue equipment, applying glue processing is carried out in cardboard front, applying glue liquid is made up of starch and glue sizing auxiliary agent alkyl succinic anhydride (ASA), and wherein ASA quality accounts for 5% of starch quality, and applying glue fluid solid content is 12%, and resin added is 3g/m
2,
(3) with coating apparatus and precoating coating, the unbeached board of applying glue is carried out to surperficial primary coat, described bottom coating solid content is 61%, and coating weight is 13g/m
2, its formula comprise following component and mass fraction as follows:
(4) with coating apparatus and painting coating, the unbeached board of primary coat is carried out to surperficial face painting, the solid content of described finishing coat coating is 61%, and coating weight is 17g/m
2, its formula comprises that following component and ratio of quality and the number of copies thereof are:
(5) with applying glue equipment, applying glue is carried out in the cardboard back side, the solid content of back side applying glue liquid is 12%, and its key component comprises starch and PVAC polyvinylalcohol, and PVA mass fraction is starch quality 5%, and back side resin added is 3.0g/m
2,
(6) after drying, soft calendaring, obtain whiteness and be 81.9 ± 1% coated white paperboard.
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|---|---|---|---|
| CN201210007151.0A CN102677549B (en) | 2012-01-11 | 2012-01-11 | Environment-friendly coated white board |
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|---|---|---|---|
| CN201210007151.0A CN102677549B (en) | 2012-01-11 | 2012-01-11 | Environment-friendly coated white board |
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| CN102677549B true CN102677549B (en) | 2014-08-13 |
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| CN117364529A (en) * | 2023-10-30 | 2024-01-09 | 山东世纪阳光纸业集团有限公司 | Precoating liquid for moisture-resistant coated paper, preparation method and application thereof |
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