CN104775324A - Oil-repellent coated corrugated case and preparation method thereof - Google Patents
Oil-repellent coated corrugated case and preparation method thereof Download PDFInfo
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- CN104775324A CN104775324A CN201510154504.3A CN201510154504A CN104775324A CN 104775324 A CN104775324 A CN 104775324A CN 201510154504 A CN201510154504 A CN 201510154504A CN 104775324 A CN104775324 A CN 104775324A
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- oil
- proof paint
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Abstract
The invention provides an oil-repellent coated corrugated case and a preparation method thereof. Firstly, the surface of one side of the body paper of a corrugated board adopted for the corrugated case is coated with oil-repellent coating; secondly, pressure is exerted to the oil-repellent coating under the condition of a temperature ranging from 160 to 170 DEG C so that the oil-repellent coating can be partially pressed in the body paper of the corrugated board, and the rest part of the oil-repellent coating forms an oil-repellent film on the surface of the body paper of the corrugated board. The oil-repellent coated corrugated case is an environment-friendly product, and does not contain heavy metal and does not pollute the environment; the oil-repellent coated corrugated case can be recycled and reutilized to conform to the European Union RoHs decrees. The case is coated with a layer of imported oil-repellent coating, and when the coating amount is about 15g/m<2>, the penetration of oil can be thoroughly obstructed, and a remarkable effect can be achieved and the cost is low.
Description
Technical field
The present invention relates to a kind of grease proofing coating corrugated case and preparation method thereof, belong to packing articles technical field.
Background technology
In daily production and life, we are except often will packing the more material of moisture, also often can pack a lot of oleaginous material, such as the fast food such as hamburger, Pizza, scribble the component of machine etc. of antirust oil, lubricating oil.The material being used for packing these materials must possess good oil resistance.What market generally adopted is the blister-packs such as polyethylene, polypropylene, polystyrene, polyvinyl chloride, these occurring in natures are difficult to the synthesized polymer material of degrading, discarded object after using causes great pollution to human environment, and during packaging, labour cost is large, packing cost is high.Along with the continuous reinforcement of people's environmental consciousness, this kind of be difficult to degrade plastic membrane product gradually replace by paper wrapper.
Paper wrapper is easily degraded, recyclable, with after discarded object not easily to environment, and draw materials and be extensively easy to get, moderate.But paper wrapper itself does not possess oil preventing performance, when using common corrugated case to pack these oleaginous materials, grease can penetrate into cardboard inside, finally forms oil mark at cardboard outer surface.Being infected with of grease can impact the mechanical property of carton, and after carton is infected with a certain amount of grease, along with the increase of time, binding paper box intensity, side pressure strength and pop strength all can decline, and wherein bonding strength declines the most obvious.
So when using corrugated case to pack oleaginous material, be necessary to take certain measure to stop fat migration to the inside of cardboard.At present, mainly by slurry during papermaking is interior, oil-proof paint is added to the processing mode of paper wrapper, higher owing to starching interior interpolation oil-proof paint cost, easily cause waste.
Summary of the invention
The object of the invention is to provide a kind of grease proofing coating corrugated case and preparation method thereof.
For achieving the above object, the first technical scheme that the present invention adopts is: a kind of grease proofing coating corrugated case, be coated with one deck oil-proof paint layer at the inner surface of corrugated case, the oil-proof paint of this oil-proof paint layer is partly depressed into the inside of the corrugated board body paper of described corrugated case by applying pressure.
Preferred technical scheme is: described oil-proof paint is primarily of acrylic resin modified composition.
Preferred technical scheme is: the coating weight of described oil-proof paint is more than or equal to 15 grams/m
2.
For achieving the above object, the second technical scheme that the present invention adopts is: a kind of preparation method of grease proofing coating corrugated case, it is characterized in that: a side surface coating oil-proof paint of the corrugated board body paper first adopted at corrugated case, then under the condition of 160 ~ 170 DEG C, pressure is applied to described oil-proof paint, be pressed in corrugated board body paper with described oil-proof paint part, remaining part forms anti-oil film on corrugated board body paper surface.
Preferred technical scheme is: described coating carries out on MRC-1000 type coating machine.
Preferred technical scheme is: described oil-proof paint is primarily of acrylic resin modified composition.
Preferred technical scheme is: the coating weight of described oil-proof paint is more than or equal to 15 grams/m
2.
Related content in technique scheme is explained as follows:
Describedly acrylic resin modifiedly be selected from that organosilicon modified crylic acid resin, Organic fluoride are acrylic resin modified, epoxy modified acrylic resin, polyurethane modified acrylic resin, nano-material modified acrylic resin.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect:
1, carton of the present invention is after grease proofing coating process, not only can provide excellent grease proofing protective value, and ensure that the technical performance indexs such as the bonding strength of carton, side pressure strength and pop strength;
2, grease proofing coating corrugated case of the present invention belongs to environment-friendly products, and not containing heavy metal, free from environmental pollution, recyclable regeneration, meets European Union RoHS decree.One deck import oil-proof paint is coated with, coating weight 15g/m at carton surface
2left and right thoroughly can intercept the infiltration of grease, and Be very effective is with low cost.
Accompanying drawing explanation
Accompanying drawing 1 is the corrugated board generalized section of grease proofing coating corrugated case.
Accompanying drawing 2 is stained with oil condition schematic diagram for reaching grease proofing grade corrugated board.
Accompanying drawing 3 is stained with oil condition schematic diagram for not reaching grease proofing grade corrugated board.
Accompanying drawing 4 is the SEM figure on uncoated corrugated board surface.
Accompanying drawing 5 is coating weight 11g/m
2the SEM figure on corrugated board surface.
Accompanying drawing 6 is coating weight 19g/m
2the SEM figure on corrugated board surface.
In above accompanying drawing, 1, oil-proof paint layer; 2, binder course; 3, corrugated board body paper.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: grease proofing coating corrugated case and preparation method thereof
Participate in shown in accompanying drawing 1, grease proofing coating corrugated case, is coated with one deck oil-proof paint layer 1 at the inner surface of corrugated case, and the oil-proof paint of this oil-proof paint layer 1 is partly depressed into the inside of the corrugated board body paper 3 of described corrugated case by applying pressure.Because oil-proof paint is depressed into the inside of the corrugated board body paper 3 of described corrugated case by applying pressure portion, therefore form binder course 2 between oil-proof paint layer 1 and corrugated board body paper 3, thus make to combine between oil-proof paint layer 1 and corrugated board body paper 3 tightr.
Described oil-proof paint becomes composition primarily of organosilicon modified crylic acid resin, water and group of surfactants, and mass ratio is: 85 ︰ 12 ︰ 3; Also film forming agent can be added in other embodiments.The present embodiment uses organosilicon modified crylic acid resin, in other detailed description of the invention, also can use that Organic fluoride is acrylic resin modified, epoxy modified acrylic resin, polyurethane modified acrylic resin, nano-material modified acrylic resin, or their mixture.In the present embodiment, the coating weight of oil-proof paint is 15 grams/m
2.
Preparation method: a kind of preparation method of grease proofing coating corrugated case, one side surface coating oil-proof paint of the corrugated board body paper first adopted at corrugated case, then under the condition of 160 ~ 170 DEG C, pressure is applied to described oil-proof paint, be pressed in corrugated board body paper with described oil-proof paint part, remaining part forms anti-oil film on corrugated board body paper surface.Coating carries out on MRC-1000 type coating machine, door fabric width 2.8m, coating speed 250m/min, adopt roll-type quantitative accurate coating technique (it is two diverse methods that the scraper type that it and paper mill process art post paperboard is coated with), " being automatically coated with streamline " supporting with coating machine is from Japanese import, model OZONE, the long 36m of complete machine, be equipped with and organize pressure roller more, the temperature of flash baking is at 160 DEG C ~ 170 DEG C.Pressure roller is exerted pressure to oil-proof paint, inner oil-proof paint part to be depressed into corrugated board body paper.The present embodiment uses organosilicon modified crylic acid resin, in other detailed description of the invention, also can use that Organic fluoride is acrylic resin modified, epoxy modified acrylic resin, polyurethane modified acrylic resin, nano-material modified acrylic resin, or their mixture.In the present embodiment, the coating weight of oil-proof paint is 15 grams/m
2.
First coat oil-proof paint at the surface basis weight of entire volume corrugated board body paper, roller through several groups of adjustable pressures extrudes, dry instantaneously with high temperature simultaneously, effective ingredient in oil-proof paint is absorbed by paper surface, define a new material layer (binder course) on the shallow top layer of paper, the moisture in oil-proof paint is then evaporated when drying.The coating layer thickness on this body paper surface is controlled, accurate, even, is combined firmly with body paper, effectively can change physics and the chemical property on body paper surface.
Use more oil preventing performance evaluation criterion to be " TAPPI T 559 cm-12 Grease resistancetest for paper and paperboard " in the world at present, be also called KIT TEST method.This side's ratio juris is mixed in proportion castor oil, toluene and normal heptane, and to the numbering that the solution of different proportion carries out from low to high, form one group of test solution, grease proofing grade is 1 ~ 12, as shown in table 1.
Table 1KIT TEST testing liquid formula and surface tension thereof:
Method of testing: test solution is dropped in specimen surface, after 15s, unnecessary test solution wiped by rapid absorption paper or cotton goods, meanwhile, the region that drips to of checkout solution immediately.If the region that test solution drips to is dimmed namely arrive test terminal, as shown in Figure 3, the maximum numbering of the test solution when specimen surface does not produce dark spots is the resistance to fat value of sample.By test, coating 11g/m
2~ 19g/m
2the grease proofing grade of grease proofing boxboard all more than 10 grades.Reach the sample of grease proofing grade as shown in Figure 2.
The phenetic analysis of grease proofing corrugated board coating structure is one of the most frequently used modern test method by scanning electronic microscope (Scanning electronmicroscope, SEM).
Be the paper surface space situation under Electronic Speculum as shown in Fig. 4 ~ Fig. 6, Fig. 4, Fig. 5, Fig. 6 are respectively uncoated boxboard surface, coating weight is 11g/m
2boxboard surface and coating weight be 19g/m
2boxboard surface SEM figure.
As can be seen from Fig. 5 ~ Fig. 6, the coating weight changing oil-proof paint can make oil-proof paint produce change at the film forming covering performance of paper surface.After oil-proof paint coating, the hole of paper surface reduces, and fibre morphology fogs.Relatively can find out by Fig. 5 ~ Fig. 6, along with the coating weight of oil-proof paint increases, void count and the size of paper surface progressively reduce, and illustrate that the film forming of oil-proof paint makes moderate progress with the rising of coating weight thus, form rete continuity also progressively improve.Fibre morphology is fuzzy gradually simultaneously, illustrate that oil-proof paint is good at the coverage effect of paper surface, oil-proof paint coating weight increases, in coating process, oil-proof paint increases in the amount of keeping of paper surface, the thickness of institute's film forming layer and continuity are all increased, enhance the coverage rate in the gap between fiber, the configuration of surface therefore observing fiber from figure fogs gradually.
Comparison diagram 4, Fig. 5 and Fig. 6, when coating weight is increased to 11g/m by 0
2time, paper surface rill reduces, paper surface becomes flat smooth, illustrate that oil-proof paint has been filled in the hole of fiber crossovers, be combined with fiber, the original tiny hole major part of paper surface is filled by oil-proof paint, and visible oil-proof paint coating largely improves the surface appearance of base paper, but now still have part hole to exist, do not form rete completely continuously; When coating weight is by 11g/m
2be increased to 19g/m
2, paper surface is homogeneous smooth, and hole disappears completely, and paper fibre structure is completely covered, and almost can't see the fibre morphology of paper surface, and paper surface defines the film of one deck continuously smooth.
In sum, along with the increase of oil-proof paint coating weight, oil-proof paint improves greatly at the film forming covering performance of paper surface, the hole situation of coating be improved significantly, hole disappears substantially, and the fibre morphology of paper is fuzzy gradually, and paper surface forms the film of one deck continuously smooth, thus reduce oil-proof paint to the infiltration of paper inside, the oil preventing performance of paper is progressively strengthened.
Carton, after grease proofing coating process, not only can provide excellent grease proofing protective value, and ensure that the technical performance indexs such as the bonding strength of carton, side pressure strength and pop strength." grease proofing coating corrugated case " belongs to environment-friendly products, and not containing heavy metal, free from environmental pollution, recyclable regeneration, meets European Union RoHS decree.Comparing through constantly testing, being coated with one deck oil-proof paint at carton surface, coating weight 15g/m
2left and right thoroughly can intercept the infiltration of grease, and Be very effective is with low cost.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (7)
1. a grease proofing coating corrugated case, is characterized in that: be coated with one deck oil-proof paint layer at the inner surface of corrugated case, and the oil-proof paint of this oil-proof paint layer is inner by the corrugated board body paper being partly depressed into described corrugated case by applying pressure.
2. grease proofing coating corrugated case according to claim 1, is characterized in that: described oil-proof paint is primarily of acrylic resin modified composition.
3. grease proofing coating corrugated case according to claim 1, is characterized in that: the coating weight of described oil-proof paint is more than or equal to 15 grams/m
2.
4. the preparation method of a grease proofing coating corrugated case, it is characterized in that: a side surface coating oil-proof paint of the corrugated board body paper first adopted at corrugated case, then under the condition of 160 ~ 170 DEG C, pressure is applied to described oil-proof paint, be pressed in corrugated board body paper with described oil-proof paint part, remaining part forms anti-oil film on corrugated board body paper surface.
5. the preparation method of grease proofing coating corrugated case according to claim 4, is characterized in that: described coating carries out on MRC-1000 type coating machine.
6. the preparation method of grease proofing coating corrugated case according to claim 4, is characterized in that: described oil-proof paint is primarily of acrylic resin modified composition.
7. the preparation method of grease proofing coating corrugated case according to claim 4, is characterized in that: the coating weight of described oil-proof paint is more than or equal to 15 grams/m
2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510154504.3A CN104775324A (en) | 2015-04-02 | 2015-04-02 | Oil-repellent coated corrugated case and preparation method thereof |
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| CN201510154504.3A CN104775324A (en) | 2015-04-02 | 2015-04-02 | Oil-repellent coated corrugated case and preparation method thereof |
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| CN104775324A true CN104775324A (en) | 2015-07-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803852A (en) * | 2016-05-18 | 2016-07-27 | 达成包装制品（苏州）有限公司 | Wear-resistant coating corrugated carton and manufacturing method thereof |
| CN106894293A (en) * | 2017-02-20 | 2017-06-27 | 达成包装制品（苏州）有限公司 | Antistatic coating carton and preparation method thereof |
| CN109963983A (en) * | 2016-11-17 | 2019-07-02 | 维实洛克Mwv有限责任公司 | Oil resistant grease resistant paper plate |
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| CN102926289A (en) * | 2012-11-08 | 2013-02-13 | 龙利得包装印刷（上海）有限公司 | Corrugated paper and manufacturing method thereof |
| CN103407650A (en) * | 2013-07-16 | 2013-11-27 | 达成包装制品（苏州）有限公司 | Waxed aquatic product carton and manufacturing technology thereof |
| CN103556527A (en) * | 2013-09-22 | 2014-02-05 | 张家港市敬业包装有限公司 | Oil pollution prevention agent for corrugated paper cartons and preparation method thereof |
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2015
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| CN102926289A (en) * | 2012-11-08 | 2013-02-13 | 龙利得包装印刷（上海）有限公司 | Corrugated paper and manufacturing method thereof |
| CN103407650A (en) * | 2013-07-16 | 2013-11-27 | 达成包装制品（苏州）有限公司 | Waxed aquatic product carton and manufacturing technology thereof |
| CN103556527A (en) * | 2013-09-22 | 2014-02-05 | 张家港市敬业包装有限公司 | Oil pollution prevention agent for corrugated paper cartons and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803852A (en) * | 2016-05-18 | 2016-07-27 | 达成包装制品（苏州）有限公司 | Wear-resistant coating corrugated carton and manufacturing method thereof |
| CN109963983A (en) * | 2016-11-17 | 2019-07-02 | 维实洛克Mwv有限责任公司 | Oil resistant grease resistant paper plate |
| CN109963983B (en) * | 2016-11-17 | 2022-04-26 | 维实洛克Mwv有限责任公司 | Oil-resistant and grease-resistant paperboard |
| CN106894293A (en) * | 2017-02-20 | 2017-06-27 | 达成包装制品（苏州）有限公司 | Antistatic coating carton and preparation method thereof |
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Application publication date: 20150715 |
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