CN102199898B - Coated natural kraft and manufacturing method thereof - Google Patents
Coated natural kraft and manufacturing method thereof Download PDFInfo
- Publication number
- CN102199898B CN102199898B CN201110091856A CN201110091856A CN102199898B CN 102199898 B CN102199898 B CN 102199898B CN 201110091856 A CN201110091856 A CN 201110091856A CN 201110091856 A CN201110091856 A CN 201110091856A CN 102199898 B CN102199898 B CN 102199898B
- Authority
- CN
- China
- Prior art keywords
- kaolin
- coat
- layer
- true qualities
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000002655 kraft paper Substances 0.000 title abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 101
- 239000011248 coating agent Substances 0.000 claims abstract description 96
- 239000010410 layer Substances 0.000 claims abstract description 94
- 239000002344 surface layer Substances 0.000 claims abstract description 29
- 238000007639 printing Methods 0.000 claims abstract description 23
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000004513 sizing Methods 0.000 claims abstract description 17
- 239000010893 paper waste Substances 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 239000000123 paper Substances 0.000 claims description 121
- 239000005995 Aluminium silicate Substances 0.000 claims description 95
- 235000012211 aluminium silicate Nutrition 0.000 claims description 95
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 95
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 60
- 239000003292 glue Substances 0.000 claims description 58
- 238000007667 floating Methods 0.000 claims description 45
- 239000000049 pigment Substances 0.000 claims description 43
- 230000037452 priming Effects 0.000 claims description 43
- 235000010216 calcium carbonate Nutrition 0.000 claims description 30
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 30
- 239000002994 raw material Substances 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 18
- 229920002472 Starch Polymers 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 12
- 239000008107 starch Substances 0.000 claims description 12
- 235000019698 starch Nutrition 0.000 claims description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 10
- 235000010215 titanium dioxide Nutrition 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 238000007591 painting process Methods 0.000 claims description 8
- 230000018044 dehydration Effects 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 6
- 229920000126 latex Polymers 0.000 claims description 6
- 239000004816 latex Substances 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 5
- 239000011111 cardboard Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 229920002261 Corn starch Polymers 0.000 claims description 3
- 240000003183 Manihot esculenta Species 0.000 claims description 3
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 claims description 3
- 239000002174 Styrene-butadiene Substances 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 3
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 3
- 238000003490 calendering Methods 0.000 claims description 3
- 239000008120 corn starch Substances 0.000 claims description 3
- 229940099112 cornstarch Drugs 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 238000007603 infrared drying Methods 0.000 claims description 3
- 239000011115 styrene butadiene Substances 0.000 claims description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 abstract description 15
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 239000002345 surface coating layer Substances 0.000 abstract 3
- 239000012792 core layer Substances 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 9
- 239000011087 paperboard Substances 0.000 description 6
- 240000000486 Lepidium draba Species 0.000 description 5
- 235000000391 Lepidium draba Nutrition 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010791 domestic waste Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- -1 and wherein Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002761 deinking Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Paper (AREA)
Abstract
The invention relates to coated natural kraft and a manufacturing method thereof. The traditional coated kraft does not have the advantages of attractive appearance, environment friendliness, high strength and good printing performance. The coated natural kraft disclosed by the invention comprises natural kraft, a surface sizing layer and a surface coating layer and is characterized in that a bottom layer comprises OCC (Old Corrugated Case) waste paper pulp and a core layer comprises waste paper; a surface layer comprises natural wood pulp and waste paper pulp, wherein the weight percentage of the natural wood pulp is 30% to 90% and the balance is the waste paper pulp; the surface sizing layer comprises a front sizing layer and a back sizing layer; and the surface coating layer comprises a bottom coating layer, a middle coating layer and a surface coating layer. The manufacturing method for the coated natural kraft sequentially comprises a natural kraft preparing working procedure, a sizing working procedure, a coating working procedure and a molding working procedure. The coated natural kraft has the advantages of reasonable structure design, attractive appearance, environment friendliness, high strength, good printing performance, simple preparation technology, low production cost and good quality.
Description
Technical field
The present invention relates to a kind of true qualities coating craft paper and manufacturing approach thereof, belong to pulp technology for making paper.
Background technology
The quantitative height, the intensity that are coated with paperboard in the market are low, and it is quantitatively generally at 200g/m
2More than, coating weight is generally at 30-50 g/m
2Though this type coated paper coated face whiteness is higher; Ink absorption and print gloss are all fine, have certain deflection and folding strength, but because the quantitative height and the coating weight of its product are big; Compare with high-strength coating craft paper; Under the quantitative situation of same product, its strength character just differs greatly, and can not reach high-intensity packing instructions.And the coating paperboard is compared with the coating craft paper, because the intensity of coating paperboard is low, the paper machine can't hang down grammes per square metre and high speed of a motor vehicle pulping requirements.
As light coated white craft paper, its product is quantitatively generally at 120-350g/m
2, coating is at 10-40 g/m
2Though light coated white craft paper has contained the characteristics of coated paper and white-top kraft liner board, it is quantitatively low to have a product; Intensity is high, and smoothness, glossiness and printing adaptability be characteristics preferably also, still; Because it adopts the bleached wood pulp vermicelli, adopt pulp from decoloured waste paper as sandwich layer, so again simultaneously; Will certainly cause wood pulp manufacturing and slurry to handle workshop section, cause the wasting of resources second environmental pollution.As open day was on November 25th, 2009; Publication number is in the Chinese patent of CN101586317; A kind of coated white-top kraft liner board and manufacturing approach thereof are disclosed; This coated white-top kraft liner board comprises coating layer, surface layer, lining, bottom and glue application layer, and coating layer comprises be set in sequence on the surface layer two coating layerings at least, coated white-top kraft liner board quantitatively be 120～220g/m
2, the coating weight of coating layer is 12～40g/m
2Three road coating layers compositions are respectively: the pigment of the first road primary coat coating layer is calcium carbonate; The pigment that is coated with coating layer in second road is made up of calcium carbonate and kaolin; The 3rd road face is coated with the pigment of coating layer and is made up of calcium carbonate, kaolin and plastic pigments; Be coated with the quality that raw material used in the coating layer and consumption can not effectively improve coated white-top kraft liner board owing to be coated with coating layer and the 3rd road face in the first road primary coat coating layer, second road, be difficult to produce the intensity height, the craft paper that printing performance is good.
Though on the market some coating kraft liner board papers are arranged also now, also there is not exquisite appearance, environmental protection, intensity is high, the coating craft paper that printing performance is good.As disclosing day is on 04 01st, 2009, and publication number is in the Chinese patent of CN101397765, discloses a kind of coating kraft liner board paper; This coating kraft liner board paper uses the true qualities kraft inner paper as bodystock paper, and wherein, formation comprises the pigment coated of adhesive on the true qualities kraft inner paper; Pigment coated comprise primary coat pigment coated, in finish pigment coating and face is finished pigment coating; Contain composite titanium dioxide during each is pigment coated,, thereby be difficult to produce the intensity height because each raw material in pigment coated is difficult to realize the compound mode of the best with consumption as pigment component; The coating craft paper that printing performance is good is difficult to effectively promote the quality that is coated with craft paper.
In sum, also there is not a kind of exquisite appearance at present, environmental protection, intensity is high, the coating craft paper that printing performance is good.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency that exists in the prior art, and a kind of reasonable in design is provided, exquisite appearance, environmental protection, intensity is high, true qualities coating craft paper and manufacturing approach thereof that printing performance is good.
The present invention addresses the above problem the technical scheme that is adopted: this true qualities coating craft paper is made up of true qualities craft paper, top sizing layer and surfaces coated layer of cloth; Said true qualities craft paper is made up of bottom, sandwich layer and surface layer; The lower surface of said sandwich layer is fixed on the upper surface of bottom; The lower surface of said surface layer is fixed on the upper surface of sandwich layer, and its characteristics are: said bottom is made up of the OCC secondary stock, and said sandwich layer is made up of waste paper; Said surface layer is made up of true qualities wood pulp and secondary stock, and true qualities wood pulp and secondary stock are all in over dry, and the percentage by weight of true qualities wood pulp is 30%-90%, and surplus is a secondary stock; Said top sizing layer is made up of positive glue application layer and back side glue application layer; Include the starch after boiling in said positive glue application layer and the back side glue application layer; The lower surface of said positive glue application layer is fixed on the upper surface of surface layer, and the upper surface of said back side glue application layer is fixed on the lower surface of bottom; Said surfaces coated layer of cloth is made up of priming coat, floating coat and finishing coat; The lower surface of said priming coat is fixed on the upper surface of positive glue application layer; The lower surface of said floating coat is fixed on the upper surface of priming coat; The lower surface of said finishing coat is fixed on the upper surface of floating coat, and said priming coat, floating coat and finishing coat are formed by pigment, adhesive and auxiliary agent, and said adhesive is formed by two kinds in acetic acid latex, styrene-butadiene latex and the coating starch or three kinds; Pigment in the said priming coat comprises calcium carbonate and kaolin, is 100 weight portions in calcium carbonate and kaolin sum, and the content of calcium carbonate is the 70-90 weight portion, and surplus is a kaolin; Pigment in the said floating coat comprises calcium carbonate, kaolin and titanium white powder, is 100 weight portions in calcium carbonate, kaolin and titanium white powder sum, and the content of calcium carbonate is the 50-70 weight portion, and kaolinic content is the 10-30 weight portion, and surplus is a titanium white powder; Pigment in the said finishing coat comprises calcium carbonate, kaolin and plastic pigments, is 100 weight portions in calcium carbonate, kaolin and plastic pigments sum, and the content of calcium carbonate is the 80-90 weight portion, and kaolinic content is the 10-15 weight portion, and surplus is a plastic pigments; The quantitative of said true qualities coating craft paper is 130-280g/m
2, wherein, the grammes per square metre scope of said surface layer is at 25-35g/m
2, the grammes per square metre scope of said sandwich layer is at 25-45 g/m
2, the grammes per square metre scope of said bottom is at 45-155g/m
2, the resin added of said top sizing layer is 2-5g/m
2, the coating weight of said surfaces coated layer of cloth is 20-40g/m
2
Kaolin in the pigment in the priming coat according to the invention is made up of the particulate kaolin and the kaolin of delaminating; The kaolinic average grain diameter of said particulate is below 2 μ m; The said kaolin of delaminating is to be obtained after the particulate kaolin below the 2 μ m is handled through delaminating by average grain diameter; Is 100 weight portions in particulate kaolin with the kaolin sum of delaminating, and the kaolinic content of particulate is the 30-60 weight portion, and surplus is the kaolin of delaminating.
Kaolin in the pigment in the floating coat according to the invention is made up of the particulate kaolin and the kaolin of delaminating; The kaolinic average grain diameter of said particulate is below 2 μ m; The said kaolin of delaminating is to be obtained after the particulate kaolin below the 2 μ m is handled through delaminating by average grain diameter; Is 100 weight portions in particulate kaolin with the kaolin sum of delaminating, and the kaolinic content of particulate is the 30-60 weight portion, and surplus is the kaolin of delaminating.
Kaolin in the pigment in the finishing coat according to the invention is made up of the particulate kaolin and the kaolin of delaminating; The kaolinic average grain diameter of said particulate is below 2 μ m; The said kaolin of delaminating is to be obtained after the particulate kaolin below the 2 μ m is handled through delaminating by average grain diameter; Is 100 weight portions in particulate kaolin with the kaolin sum of delaminating, and the kaolinic content of particulate is the 30-60 weight portion, and surplus is the kaolin of delaminating.
Starch in positive glue application layer according to the invention and the back side glue application layer is tapioca or cornstarch.
The method that the present invention makes true qualities coating craft paper comprises true qualities craft paper preparation section, applying glue operation, painting process and molding procedure successively; The used equipment of this method comprises finishing coat mixing pit, floating coat mixing pit, priming coat mixing pit, feeding system, paper machine slurry flowing box, surface size press and curtain formula coating machine; In the said true qualities craft paper preparation section; The raw material that to make the raw material of finishing coat, the raw material of making floating coat and making priming coat earlier is added to respectively in finishing coat mixing pit, floating coat mixing pit and the priming coat mixing pit and mixes; To pass through mixed finishing coat raw material, floating coat raw material and priming coat raw material through feeding system then and be transported in the paper machine slurry flowing box, through fourdrinier part dehydration be shaped, compound and manufacture paper with pulp and process base board, again with base board through press machines dehydration, preceding drying and oven dry; Make mass dryness fraction and be 92% true qualities craft paper; This true qualities craft paper is formed by stacking finishing coat, floating coat and priming coat from top to bottom successively, it is characterized in that: in the said applying glue operation, earlier the true qualities craft paper is carried out applying glue through surface size press; Upper surface at finishing coat is provided with the positive glue application layer of one deck; Lower surface at priming coat is provided with one deck back side glue application layer, then through dry and oven dry later, carries out hard press polish again and obtains the consistent thickness of banner with the surfacing modification; Said painting process comprise successively the primary coat step, in be coated with step, face is coated with step and drying steps; In the said primary coat step; Upper surface to positive glue application layer is coated priming coat; The filling of pit portion on the positive glue application layer is smooth, for floating coat provides a smooth surface of opening, to increase acceptance to floating coat; Be coated with in said in the step, coat floating coat to the upper surface of priming coat, form the uniform seal coat of thickness, cover this color surface layer fully through curtain formula coating machine; Said face is coated with in the step, coats finishing coat at the upper surface of floating coat, improves the printing adaptability of true qualities coating craft paper; In the said molding procedure, will pass through cardboard after the coating through infrared drying, hot bellows drying after, get into soft calendaring and paper ornamenting again, be shaped at last and batch and make true qualities and be coated with craft paper; The quantitative of said true qualities coating craft paper is 130-280g/m
2, wherein, the grammes per square metre scope of said surface layer is at 25-35g/m
2, the grammes per square metre scope of said sandwich layer is at 25-45 g/m
2, the grammes per square metre scope of said bottom is at 45-155g/m
2, the resin added of said top sizing layer is 2-5g/m
2, the coating weight of said surfaces coated layer of cloth is 20-40g/m
2
The present invention compared with prior art; Have the following advantages and effect: true qualities coating craft paper is owing to adopt true qualities wood pulp and recovery OCC secondary stock to manufacture paper with pulp; Not only intensity is high for the craft paper of being produced, printing effect is good; And because its grammes per square metre is low, intensity is high, can satisfy the online coating production of the high speed of a motor vehicle of paper machine fully.Therefore, true qualities coating craft paper has the printing characteristic and the high advantage of craft paper ring crush intensity of coated board, simultaneously; The true qualities coating craft paper environmental protection of producing; Exquisite appearance, the cardboard dimensionally stable, planarization is fine; Can partly or completely substitute coated manila, be widely used in and make various medium and high-grade goods packing boxes.
In addition, surface layer of the present invention adopts the non-bleached wood pulp of true qualities, and the non-bleached wood pulp of true qualities is compared with bleached wood pulp, and pulping process pollutes few, and the raw material of sandwich layer and bottom is owing to all adopt the reclaimed waste paper slurry, no deinking technology.Therefore, not only production cost is low for true qualities coating craft paper, and is low in the pollution of the environment, and environmental protection, avoided the transition felling of forest, helps Sustainable utilization of resources, belongs to the high-grade paperboard of " environmental protection " type.
Not only the paper whiteness is high, smoothness is good for true qualities coating craft paper of the present invention, and printing performance is good, and can accomplish low quantitative, high strength.The true qualities coating craft paper that employing the present invention produces is quantitatively low, intensity is good, can not only satisfy the paper machine and under 1000 meters/minute high speed of a motor vehicle situation, produce, and avoids disconnected paper, and for one applying glue, painting process provide guarantee down.Simultaneously,, thereby improved the carton usable floor area of Unit Weight greatly, reduced user's production cost because its intensity is high, quantitatively low.The technology of preparation true qualities coating craft paper is simple among the present invention, and production cost is low, and the quality of making the true qualities coating craft paper that forms is good.
Description of drawings
Fig. 1 is the structural representation of true qualities coating craft paper in the embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing and through embodiment the present invention is done further detailed description, following examples are to explanation of the present invention and the present invention is not limited to following examples.
Embodiment:
Referring to Fig. 1; True qualities coating craft paper in the present embodiment is made up of true qualities craft paper, top sizing layer and surfaces coated layer of cloth; Wherein, The true qualities craft paper is made up of bottom 7, sandwich layer 6 and surface layer 5, and the lower surface of sandwich layer 6 is fixed on the upper surface of bottom 7, and the lower surface of surface layer 5 is fixed on the upper surface of sandwich layer 6.Bottom 7 in the present embodiment is made up of the OCC secondary stock, and sandwich layer 6 is made up of waste paper.Surface layer 5 in the present embodiment is made up of true qualities wood pulp and secondary stock; True qualities wood pulp and secondary stock are all in over dry; The percentage by weight of true qualities wood pulp is 30%-90%, and surplus is a secondary stock, that is to say in surface layer 5; The shared percentage by weight of the wood pulp of over dry is 30%-90%, and surplus is the secondary stock of over dry.
Top sizing layer in the present embodiment is made up of with back side glue application layer 8 positive glue application layer 4, includes the starch after boiling in positive glue application layer 4 and the back side glue application layer 8, and the starch in positive glue application layer 4 and the back side glue application layer 8 can be tapioca or cornstarch.The lower surface of positive glue application layer 4 is fixed on the upper surface of surface layer 5 in the present embodiment, and the upper surface of back side glue application layer 8 is fixed on the lower surface of bottom 7.
Surfaces coated layer of cloth in the present embodiment is made up of priming coat 3, floating coat 2 and finishing coat 1; The lower surface of priming coat 3 is fixed on the upper surface of positive glue application layer 4; The lower surface of floating coat 2 is fixed on the upper surface of priming coat 3, and the lower surface of finishing coat 1 is fixed on the upper surface of floating coat 2.Priming coat 3, floating coat 2 and finishing coat 1 are formed by pigment, adhesive and auxiliary agent, and wherein, adhesive is formed by two kinds in acetic acid latex, styrene-butadiene latex and the coating starch or three kinds.
Pigment in the present embodiment priming coat 3 comprises calcium carbonate and kaolin, is 100 weight portions in calcium carbonate and kaolin sum, and the content of calcium carbonate is the 70-90 weight portion, and surplus is a kaolin.Kaolin in the pigment in the priming coat 3 is made up of the particulate kaolin and the kaolin of delaminating; The kaolinic average grain diameter of particulate is below 2 μ m; The kaolin of delaminating is to be obtained after the particulate kaolin below the 2 μ m is handled through delaminating by average grain diameter; Is 100 weight portions in particulate kaolin with the kaolin sum of delaminating, and the kaolinic content of particulate is the 30-60 weight portion, and surplus is the kaolin of delaminating.
Pigment in the present embodiment floating coat 2 comprises calcium carbonate, kaolin and titanium white powder, is 100 weight portions in calcium carbonate, kaolin and titanium white powder sum, and the content of calcium carbonate is the 50-70 weight portion, and kaolinic content is the 10-30 weight portion, and surplus is a titanium white powder.Kaolin in the pigment in the floating coat 2 is made up of the particulate kaolin and the kaolin of delaminating; The kaolinic average grain diameter of particulate is below 2 μ m; The kaolin of delaminating is to be obtained after the particulate kaolin below the 2 μ m is handled through delaminating by average grain diameter; Is 100 weight portions in particulate kaolin with the kaolin sum of delaminating, and the kaolinic content of particulate is the 30-60 weight portion, and surplus is the kaolin of delaminating.
Pigment in the present embodiment finishing coat 1 comprises calcium carbonate, kaolin and plastic pigments; In calcium carbonate, kaolin and plastic pigments sum is 100 weight portions; The content of calcium carbonate is the 80-90 weight portion, and kaolinic content is the 10-15 weight portion, and surplus is a plastic pigments.Kaolin in the pigment in the finishing coat 1 is made up of the particulate kaolin and the kaolin of delaminating; The kaolinic average grain diameter of particulate is below 2 μ m; The kaolin of delaminating is to be obtained after the particulate kaolin below the 2 μ m is handled through delaminating by average grain diameter; Is 100 weight portions in particulate kaolin with the kaolin sum of delaminating, and the kaolinic content of particulate is the 30-60 weight portion, and surplus is the kaolin of delaminating.
True qualities coating craft paper is 130-280g/m quantitatively in the present embodiment
2, wherein, the grammes per square metre scope of surface layer 5 is at 25-35g/m
2, the grammes per square metre scope of sandwich layer 6 is at 25-45 g/m
2, the grammes per square metre scope of bottom 7 is at 45-155g/m
2, the resin added of top sizing layer is 2-5g/m
2, the coating weight of surfaces coated layer of cloth is 20-40g/m
2
The method of making true qualities coating craft paper in the present embodiment comprises true qualities craft paper preparation section, applying glue operation, painting process and molding procedure successively; The used equipment of this method comprises finishing coat 1 mixing pit, floating coat 2 mixing pits, priming coat 3 mixing pits, feeding system, paper machine slurry flowing box, surface size press and curtain formula coating machine; These equipment are prior art to one skilled in the art, no longer detail here.
In the true qualities craft paper preparation section; The raw material that to make the raw material of finishing coat 1, the raw material of making floating coat 2 and making priming coat 3 earlier is added to respectively in finishing coat 1 mixing pit, floating coat 2 mixing pits and priming coat 3 mixing pits and mixes; To pass through mixed finishing coat 1 raw material, floating coat 2 raw materials and priming coat 3 raw materials through feeding system then is transported in the paper machine slurry flowing box; Through fourdrinier part dehydration be shaped, compound and manufacture paper with pulp and process base board; Again with base board through press machines dehydration, preceding drying and oven dry, make mass dryness fraction and be 92% true qualities craft paper, this true qualities craft paper is formed by stacking finishing coat 1, floating coat 2 and priming coat 3 from top to bottom successively.
In the applying glue operation of present embodiment; Earlier the true qualities craft paper is carried out applying glue through surface size press; Upper surface at finishing coat 1 is provided with the positive glue application layer 4 of one deck; Lower surface at priming coat 3 is provided with one deck back side glue application layer 8, then through dry and oven dry later, carries out hard press polish again and obtains the consistent thickness of banner with the surfacing modification.
Painting process in the present embodiment comprise successively the primary coat step, in be coated with step, face is coated with step and drying steps; In the primary coat step; Coat priming coat 3 to the upper surface of positive glue application layer 4; The filling of pit portion on the positive glue application layer 4 is smooth, for floating coat 2 provides a smooth surface of opening, to increase acceptance to floating coat 2; In be coated with in the step, coat floating coat 2 through curtain formula coating machine to the upper surface of priming coat 3, form the uniform seal coat of thickness, cover this color surface layer 5 fully; Be coated with in the step at face, coat finishing coat 1, improve the printing adaptability of true qualities coating craft paper at the upper surface of floating coat 2.
In the molding procedure of present embodiment, will pass through cardboard after the coating through infrared drying, hot bellows drying after, get into soft calendaring and paper ornamenting again, be shaped at last and batch and make true qualities and be coated with craft paper.
True qualities coating craft paper among the present invention adopts three roads combination coating method, the cardboard that the above-mentioned explained hereafter of process goes out, not only exquisite appearance; Environmental protection, and intensity is high, and printing performance is good; Satisfying the requirement of all kinds of high-grade packages printings, is the substitute products of the coating paperboard of a new generation.
Waste paper in the sandwich layer 6 of the present invention can be made up of imported waste paper and domestic waste paper, and imported waste paper and domestic waste paper are in 100% over dry, and the shared percentage by weight of imported waste paper is 40%-60%, and surplus is a domestic waste paper.OCC secondary stock in the bottom 7 of the present invention can be made up of import OCC secondary stock and domestic OCC secondary stock; Import OCC secondary stock and domestic OCC secondary stock are in 100% over dry; The shared percentage by weight of import OCC secondary stock is 40%-60%, and surplus is domestic OCC secondary stock.
At first the size-press starch sizing material is coated on the surface of surface layer 5 and bottom 7 among the present invention, then in order, three roads combinations coating composition is coated on uniformly forms on the glue application layer.Wherein, glue application layer mainly is made up of starch and auxiliary agent, and coating is made up of pigment, adhesive and auxiliary agent with coating.The applying glue of this coating craft paper, coating squence are: carry out applying glue earlier; Form glue application layer; On glue application layer, carry out then primary coat, in be coated with and face is coated with three roads combinations coating layer, primary coat is arranged on the face glue application layer, in be coated with and be arranged on the primary coat layer of cloth; Be coated with on the coating layer during face is coated with and is arranged on, it is the most surperficial to be positioned at paper.
The present invention is directed to each layer of true qualities coatings craft paper paper situation characteristics, the starch fluid after utilizing surface size press with modification earlier evenly is coated onto on surface layer 5 and bottom 7 surfaces, to increase physical strength, water repelling property and the printing quality of true qualities craft paper; Get into the primary coat in the three roads combinations coating method again, through priming coat 3, with " pit " on body paper surface partly " fillings " smooth, in be coated with a more smooth surface of opening be provided, with the acceptance of increase, make surface layer 5 papers smooth smooth to coating; Be coated with in carrying out through curtain formula coating machine then, form the uniform seal coat of thickness, cover this color surface layer 5 fully; Be coated with through face at last, improve the printing adaptability of true qualities coating craft paper.The present invention takes above coating process, and not only coating is even, and spreadability is good, and the true qualities coating craft paper glossiness of producing is high, and printing adaptability is very good.
Not only the paper whiteness is high, smoothness is good for true qualities coating craft paper of the present invention, and printing performance is good, and can accomplish low quantitative, high strength.The true qualities coating craft paper that employing the present invention produces is quantitatively low, intensity is good, can not only satisfy the paper machine and under 1000 meters/minute high speed of a motor vehicle situation, produce, and avoids disconnected paper, and for one applying glue, painting process provide guarantee down.Simultaneously,, thereby improved the carton usable floor area of Unit Weight greatly, reduced user's production cost because its intensity is high, quantitatively low.
Because true qualities coating craft paper of the present invention is quantitatively low, the paper machine speed height of manufacturing paper with pulp, online coating speed is very fast; The online coating of per minute is about 1000 meters; Therefore, for guaranteeing that craft paper can not guarantee good coating effect again simultaneously because of quantitatively low, weak strength produce disconnected paper aborning under high speed of a motor vehicle situation; The curtain formula coating machine that adopts has following characteristics: coating is even, coating speed is fast, can satisfy steady production under the low high speed of a motor vehicle condition of grammes per square metre; Coating layer thickness is very even, and coating quality is excellent, and spreadability is good, and the while is easy operating also; Running cost is low, and production efficiency is high, and it is few to be coated with paper defects simultaneously.Adopt the mode of curtain formula coating in the present invention, add and use high-speed coating coating, not only coating is even for the true qualities of being produced coating craft paper, covering property is good, and glossiness is high, printing adaptability is strong, can satisfy the requirement of all kinds of high-grade printings.
For further specifying the present invention, further the present invention will be described with the form of form below, specific as follows.
Through above preparation technology, the technical indicator of the true qualities coating craft paper of producing is seen table 5.
By on can know that true qualities among the present invention coating craft paper is not only quantitatively low, intensity is high, and printing effect is good; Simultaneously, owing to combined curtain formula coating process, coating is thin, coating speed is fast, and covering property is good, can satisfy steady production under the low high speed of a motor vehicle condition of grammes per square metre.Therefore, true qualities coating craft paper has been taken into account the advantage of coated board and craft paper, simultaneously; Because it adopts the recovery slurry basically, not only production cost is low, and is low in the pollution of the environment; And environmental protection, avoided the transition felling of forest, help Sustainable utilization of resources; Belong to the high-grade paperboard of " environmental protection " type, have good market development prospect.
Though the present invention with embodiment openly as above; But it is not in order to limit protection scope of the present invention; Any technical staff who is familiar with this technology, change and the retouching in not breaking away from design of the present invention and scope, done all should belong to protection scope of the present invention.
Claims (5)
1. true qualities are coated with craft paper; It is made up of true qualities craft paper, top sizing layer and surfaces coated layer of cloth; Said true qualities craft paper is made up of bottom, sandwich layer and surface layer, and the lower surface of said sandwich layer is fixed on the upper surface of bottom, and the lower surface of said surface layer is fixed on the upper surface of sandwich layer; It is characterized in that: said bottom is made up of the OCC secondary stock, and said sandwich layer is made up of waste paper; Said surface layer is made up of true qualities wood pulp and secondary stock, and true qualities wood pulp and secondary stock are all in over dry, and the percentage by weight of true qualities wood pulp is 30%-90%, and surplus is a secondary stock; Said top sizing layer is made up of positive glue application layer and back side glue application layer; Include the starch after boiling in said positive glue application layer and the back side glue application layer; The lower surface of said positive glue application layer is fixed on the upper surface of surface layer, and the upper surface of said back side glue application layer is fixed on the lower surface of bottom; Said surfaces coated layer of cloth is made up of priming coat, floating coat and finishing coat; The lower surface of said priming coat is fixed on the upper surface of positive glue application layer; The lower surface of said floating coat is fixed on the upper surface of priming coat; The lower surface of said finishing coat is fixed on the upper surface of floating coat, and said priming coat, floating coat and finishing coat are formed by pigment, adhesive and auxiliary agent, and said adhesive is formed by two kinds in acetic acid latex, styrene-butadiene latex and the coating starch or three kinds; Pigment in the said priming coat comprises calcium carbonate and kaolin, is 100 weight portions in calcium carbonate and kaolin sum, and the content of calcium carbonate is the 70-90 weight portion, and surplus is a kaolin; Pigment in the said floating coat comprises calcium carbonate, kaolin and titanium white powder, is 100 weight portions in calcium carbonate, kaolin and titanium white powder sum, and the content of calcium carbonate is the 50-70 weight portion, and kaolinic content is the 10-30 weight portion, and surplus is a titanium white powder; Pigment in the said finishing coat comprises calcium carbonate, kaolin and plastic pigments, is 100 weight portions in calcium carbonate, kaolin and plastic pigments sum, and the content of calcium carbonate is the 80-90 weight portion, and kaolinic content is the 10-15 weight portion, and surplus is a plastic pigments; The quantitative of said true qualities coating craft paper is 130-280g/m
2, wherein, the grammes per square metre scope of said surface layer is at 25-35g/m
2, the grammes per square metre scope of said sandwich layer is at 25-45 g/m
2, the grammes per square metre scope of said bottom is at 45-155g/m
2, the resin added of said top sizing layer is 2-5g/m
2, the coating weight of said surfaces coated layer of cloth is 20-40g/m
2
The preparation method of said true qualities coating craft paper comprises true qualities craft paper preparation section, applying glue operation, painting process and molding procedure successively; The used equipment of this method comprises finishing coat mixing pit, floating coat mixing pit, priming coat mixing pit, feeding system, paper machine slurry flowing box, surface size press and curtain formula coating machine; In the said true qualities craft paper preparation section; The raw material that to make the raw material of finishing coat, the raw material of making floating coat and making priming coat earlier is added to respectively in finishing coat mixing pit, floating coat mixing pit and the priming coat mixing pit and mixes; To pass through mixed finishing coat raw material, floating coat raw material and priming coat raw material through feeding system then is transported in the paper machine slurry flowing box; Through fourdrinier part dehydration be shaped, compound and manufacture paper with pulp and process base board; Again with base board through press machines dehydration, preceding drying and oven dry, make mass dryness fraction and be 92% true qualities craft paper, this true qualities craft paper is formed by stacking finishing coat, floating coat and priming coat from top to bottom successively; In the said applying glue operation; Earlier the true qualities craft paper is carried out applying glue through surface size press; Upper surface at finishing coat is provided with the positive glue application layer of one deck; Lower surface at priming coat is provided with one deck back side glue application layer, then through dry and oven dry later, carries out hard press polish again and obtains the consistent thickness of banner with the surfacing modification; Said painting process comprise successively the primary coat step, in be coated with step, face is coated with step and drying steps; In the said primary coat step; Upper surface to positive glue application layer is coated priming coat; The filling of pit portion on the positive glue application layer is smooth, for floating coat provides a smooth surface of opening, to increase acceptance to floating coat; Be coated with in said in the step, coat floating coat to the upper surface of priming coat, form the uniform seal coat of thickness, cover this color surface layer fully through curtain formula coating machine; Said face is coated with in the step, coats finishing coat at the upper surface of floating coat, improves the printing adaptability of true qualities coating craft paper; In the said molding procedure, will pass through cardboard after the coating through infrared drying, hot bellows drying after, get into soft calendaring and paper ornamenting again, be shaped at last and batch and make true qualities and be coated with craft paper; The quantitative of said true qualities coating craft paper is 130-280g/m
2, wherein, the grammes per square metre scope of said surface layer is at 25-35g/m
2, the grammes per square metre scope of said sandwich layer is at 25-45 g/m
2, the grammes per square metre scope of said bottom is at 45-155g/m
2, the resin added of said top sizing layer is 2-5g/m
2, the coating weight of said surfaces coated layer of cloth is 20-40g/m
2
2. true qualities coating craft paper according to claim 1; It is characterized in that: the kaolin in the pigment in the said priming coat is made up of the particulate kaolin and the kaolin of delaminating; The kaolinic average grain diameter of said particulate is below 2 μ m, and the said kaolin of delaminating is to be obtained after the particulate kaolin below the 2 μ m is handled through delaminating by average grain diameter, is 100 weight portions in particulate kaolin with the kaolin sum of delaminating; The kaolinic content of particulate is the 30-60 weight portion, and surplus is the kaolin of delaminating.
3. true qualities coating craft paper according to claim 1; It is characterized in that: the kaolin in the pigment in the said floating coat is made up of the particulate kaolin and the kaolin of delaminating; The kaolinic average grain diameter of said particulate is below 2 μ m, and the said kaolin of delaminating is to be obtained after the particulate kaolin below the 2 μ m is handled through delaminating by average grain diameter, is 100 weight portions in particulate kaolin with the kaolin sum of delaminating; The kaolinic content of particulate is the 30-60 weight portion, and surplus is the kaolin of delaminating.
4. true qualities coating craft paper according to claim 1; It is characterized in that: the kaolin in the pigment in the said finishing coat is made up of the particulate kaolin and the kaolin of delaminating; The kaolinic average grain diameter of said particulate is below 2 μ m, and the said kaolin of delaminating is to be obtained after the particulate kaolin below the 2 μ m is handled through delaminating by average grain diameter, is 100 weight portions in particulate kaolin with the kaolin sum of delaminating; The kaolinic content of particulate is the 30-60 weight portion, and surplus is the kaolin of delaminating.
5. true qualities coating craft paper according to claim 1, it is characterized in that: the starch in said positive glue application layer and the back side glue application layer is tapioca or cornstarch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110091856A CN102199898B (en) | 2011-04-13 | 2011-04-13 | Coated natural kraft and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110091856A CN102199898B (en) | 2011-04-13 | 2011-04-13 | Coated natural kraft and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102199898A CN102199898A (en) | 2011-09-28 |
| CN102199898B true CN102199898B (en) | 2012-10-03 |
Family
ID=44660861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110091856A Active CN102199898B (en) | 2011-04-13 | 2011-04-13 | Coated natural kraft and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102199898B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677549B (en) * | 2012-01-11 | 2014-08-13 | 臧永华 | Environment-friendly coated white board |
| CN102587202B (en) * | 2012-02-23 | 2014-06-25 | 富阳市茂宏纸业有限公司 | Preparation technology for craft paper and paint for coating craft paper |
| CN102912691B (en) * | 2012-10-18 | 2015-05-20 | 山东晨鸣纸业集团股份有限公司 | Coated craft paper and production method thereof |
| CN102912689B (en) * | 2012-10-18 | 2015-01-14 | 山东晨鸣纸业集团股份有限公司 | White-surface coated craft paper and production method thereof |
| CN102995501B (en) * | 2012-11-02 | 2013-11-20 | 吉安集团股份有限公司 | Curtain type coating craft paper and preparation method thereof |
| CN103437242B (en) * | 2013-07-22 | 2014-11-12 | 吉安集团有限公司 | White craft paper and production method thereof |
| CN105019295A (en) * | 2014-04-22 | 2015-11-04 | 玖龙纸业(天津)有限公司 | Clay coated kraft back material and preparation method of clay coated kraft back |
| CN104313939A (en) * | 2014-08-25 | 2015-01-28 | 海南金海浆纸业有限公司 | High-turning-speed multi-layer coating paint |
| CN104389235A (en) * | 2014-09-22 | 2015-03-04 | 浙江光明纸业有限公司 | Low-quantification and high-strength coating white board paper and preparation process thereof |
| CN104928968A (en) * | 2015-05-22 | 2015-09-23 | 厦门吉宏包装科技股份有限公司 | Coated kraft paper and production technology thereof |
| CN105951490A (en) * | 2016-04-26 | 2016-09-21 | 玖龙纸业(天津)有限公司 | Novel high-whiteness-surface kraft cardboard production process |
| CN108385449A (en) * | 2018-01-10 | 2018-08-10 | 浙江山鹰纸业有限公司 | A kind of coated craft paper and its coating process |
| CN109972453B (en) * | 2019-03-08 | 2021-08-06 | 华南理工大学 | Coated paperboard suitable for high-speed printing and preparation method thereof |
| CN114687250A (en) * | 2022-02-11 | 2022-07-01 | 广西金桂浆纸业有限公司 | Paper and processing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338531A (en) * | 2008-08-07 | 2009-01-07 | 浙江永泰纸业集团股份有限公司 | Method for producing coated kraft card board by home-made paper machine |
| CN101586317A (en) * | 2009-07-07 | 2009-11-25 | 昌乐世纪阳光纸业有限公司 | Coated white-top kraft liner board and manufacturing method thereof |
| CN101586318A (en) * | 2009-07-07 | 2009-11-25 | 昌乐世纪阳光纸业有限公司 | Coated white-top kraft liner board and manufacturing method thereof |
-
2011
- 2011-04-13 CN CN201110091856A patent/CN102199898B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338531A (en) * | 2008-08-07 | 2009-01-07 | 浙江永泰纸业集团股份有限公司 | Method for producing coated kraft card board by home-made paper machine |
| CN101586317A (en) * | 2009-07-07 | 2009-11-25 | 昌乐世纪阳光纸业有限公司 | Coated white-top kraft liner board and manufacturing method thereof |
| CN101586318A (en) * | 2009-07-07 | 2009-11-25 | 昌乐世纪阳光纸业有限公司 | Coated white-top kraft liner board and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102199898A (en) | 2011-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102199898B (en) | Coated natural kraft and manufacturing method thereof | |
| CN102912689B (en) | White-surface coated craft paper and production method thereof | |
| CN101586317B (en) | Coated white-top kraft liner board and manufacturing method thereof | |
| CN102912691B (en) | Coated craft paper and production method thereof | |
| CN101586318B (en) | Coated white-top kraft liner board and manufacturing method thereof | |
| CN102212983A (en) | High-intensity environment-friendly craft paper and manufacturing method thereof | |
| CN104846684B (en) | Environment-friendly plastics-absorption double-surface coated white board paper and preparation technology thereof | |
| CN106948208B (en) | A kind of environmental protection light basis weight coated duplex board with grey back and preparation method thereof | |
| CN101581055B (en) | Light coated white craft paper and method for manufacturing same | |
| CN102978995A (en) | Production method for base wallpaper | |
| CN203411861U (en) | Production system of coated white board | |
| CN102677549A (en) | Environment-friendly coated white board | |
| AU8338787A (en) | Gypsum wallboard paper having imitation manila colored coating | |
| CN101250835A (en) | Method for producing coating ultra-sense paper | |
| CN103806326A (en) | Liquid packaging body paper board and preparation method thereof | |
| CN106133242A (en) | Inside it is filled with the paper of flap build precipitated calcium carbonate | |
| CN101581058A (en) | Method for producing coating light-weight super-sensitive paper | |
| CN102839559B (en) | Manufacturing method of coated dictionary paper | |
| CN103774491B (en) | White Board | |
| CN202072979U (en) | Natural color coating kraft paper | |
| JP2012077423A (en) | Coated paper and method for producing the same | |
| CN110965391B (en) | Method for manufacturing high-strength white craft paper | |
| CN111005258B (en) | Light coated craft paper and production method thereof | |
| CN102493283A (en) | Technology for producing white clay-filled paper | |
| CN112064421A (en) | Dyed grey board paper and production process thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JI'AN GROUP CO., LTD. Free format text: FORMER OWNER: ZHEJIANG JI'AN PAPER CONTAINER CO., LTD. Effective date: 20121113 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121113 Address after: 314304 Hangzhou Bay Bridge New District, Haiyan County Economic Development Zone, Zhejiang, Jiaxing Patentee after: Jian Group Co., Ltd. Address before: 314304 New District of Haiyan Economic Development Zone, Haiyan County, Zhejiang, Jiaxing Patentee before: Zhejiang Ji'an Paper Container Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: JIAN GROUP CO., LTD. Free format text: FORMER NAME: JI'AN GROUP CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 314304 Hangzhou Bay Bridge New District, Haiyan County Economic Development Zone, Zhejiang, Jiaxing Patentee after: Ji'an (Group) Co., Ltd. Address before: 314304 Hangzhou Bay Bridge New District, Haiyan County Economic Development Zone, Zhejiang, Jiaxing Patentee before: Jian Group Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 314304 Hangzhou Haiqiao new area, Haiyan County Economic Development Zone, Jiaxing, Zhejiang Patentee after: Zhejiang Shanying Co. Ltd. Address before: 314304 Hangzhou Haiqiao new area, Haiyan County Economic Development Zone, Jiaxing, Zhejiang Patentee before: Ji'an (Group) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |