CN202989687U - Oil-proof coating white cardboard - Google Patents
Oil-proof coating white cardboard Download PDFInfo
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- CN202989687U CN202989687U CN 201220587910 CN201220587910U CN202989687U CN 202989687 U CN202989687 U CN 202989687U CN 201220587910 CN201220587910 CN 201220587910 CN 201220587910 U CN201220587910 U CN 201220587910U CN 202989687 U CN202989687 U CN 202989687U
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Abstract
The utility model provides oil-proof coating white cardboard. The oil-proof coating white cardboard comprises raw paper and a coating layer, wherein the raw paper comprises a surface layer, a core layer and a bottom layer, and the coating layer comprises a precoated layer, a core coating layer, a surface coating layer and a back coating oil-proof layer. The back coating oil-proof layer of the cardboard can adopt a coating formula without fluorocarbon, sources of pollution such as PFOA and PFOS are prevented from existing, and a potential safety hazard that packaging paper pollutes foods is eliminated. Simultaneously, oil-proof level is high, and process is simple. Compared with the traditional process which adopts the fluorocarbon, production cost of the cardboard is reduced, and the oil-proof coating white cardboard has good economic benefit.
Description
Technical field
The utility model relates to pulp technology for making paper, specifically a kind of grease proofing coated white cardboard.
Background technology
At present, the grease-proof wrapping of selling on market is generally to adopt to add fluorocarbons in paper pulp, makes body paper possess grease proofing, grease-proof performance.Paper contains fluorocarbons, may have PFOA(Perfluorooctanoic Acid in fluorocarbons; Perfluorooctanoic acid), PFOS(perfluorooctanesulphonate, perfluoro octane sulfonate) etc., that European Union has listed safety in and forbids containing material component in the catalogue of composition, thereby adopt this type of grease-proof wrapping to carry out packaging for foodstuff, have the potential safety hazard of contaminated food products.
The utility model content
The purpose of this utility model is to provide a kind of grease proofing coated white cardboard.
In order to achieve the above object, the utility model has adopted following technical scheme:
A kind of grease proofing coated white cardboard comprises body paper and coating layer:
Described body paper comprises surface layer, sandwich layer and the bottom of stack successively; Described coating layer comprises that precoated shet, core coating, finishing coat and the back of the body are coated with anti-oil reservoir; This precoated shet is coated on this surface layer, and this core coating is coated on this precoated shet, and this finishing coat is coated on this precoated shet, and this back of the body is coated with the bottom surface that anti-oil reservoir is coated this bottom.
As optimal technical scheme of the present utility model, the coating weight of described precoated shet, core coating, finishing coat is respectively 8 g/ms, 12 g/ms, 12 g/ms.
Grease proofing coated white cardboard disclosed in the utility model is the one side that contacts with oil or grease class packing material at paper, is coated with anti-oil reservoir by a back of the body, forms a coated face that seals and possess oil-resistant function finally to realize the oil-resistant function of paper in reverse side of paper.The back of the body that reverse side of paper adopts is coated with anti-oil reservoir can use the not formulation for coating material of fluorocarbon-containing compound, has avoided the pollution sources such as PFOA, PFOS to exist in the production process link, eliminates the potential safety hazard of wrapping paper contaminated food products.Simultaneously, the grease proofing grade of paper is high, and technique is simple, easily realizes, adopts the technique of fluorocarbons to compare with tradition, and the production cost of paper descends, and has economic benefit preferably.
Description of drawings
Fig. 1 is the structural representation of grease proofing coated white cardboard in the utility model.
Fig. 2 is the production technological process of grease proofing coated white cardboard in the utility model.
The specific embodiment
See also Fig. 1, grease proofing coated white cardboard comprises body paper and coating layer.Described body paper comprises surface layer 103, sandwich layer 102 and the bottom 101 of stack successively.Described coating layer comprises precoated shet 104, core coating 105, finishing coat 106 and anti-oil reservoir 107.This precoated shet 104 is coated on this surface layer 103, and this core coating 105 is coated on this precoated shet 104, and this finishing coat 106 is coated on this precoated shet 105, and this back of the body is coated with the bottom surface that anti-oil reservoir 107 is coated this bottom 101.
Coating composition and proportioning parts by weight that described this back of the body is coated with anti-oil reservoir are: 100 parts of pigment, 50～100 parts, latex, 0～50 part of grease proofing starch, 0.1～0.6 part of carboxymethyl cellulose, 0.05～0.12 part of dispersant, 0.3～1.0 part of water repellent agent, 0.3～1.2 part of lubricant, 0.035 part of defoamer, 0.05～0.2 part, caustic soda, 0.05～0.3 part, bactericide.Wherein, 100 parts of pigment are comprised of the calcium carbonate and the china clay that carry out proportioning by any parts by weight; That is, 100 parts of pigment can be formed or formed or formed 100 parts of pigment for calcium carbonate mixes with china clay by 100 parts of china clay by 100 parts of calcium carbonate.
Above-mentioned precoated shet 104, core coating 105, finishing coat 106 all adopt traditional handicraft coating coating used to get final product; For example, as application number: 201110031490.8, patent name: the formulation for coating material of disclosed coating layer in the application documents of a kind of natural-color cigarette cardboard and production method thereof.
More excellent, the coating weight of this precoated shet 104, this core coating 105, this finishing coat 106 is respectively 8 g/ms, 12 g/ms, 12 g/ms.
More excellent, the wood pulp component of described surface layer 103 and percentage by weight are bleaching broad-leaved wood sulphate pulp 80-95%, bleaching softwood kraft pulp 5-20%; The wood pulp component of described sandwich layer 102 and percentage by weight are bleached chemical thermomechanical pulp 65-75%, broken 25-35%; The wood pulp component of described bottom 101 and percentage by weight are bleaching broad-leaved wood sulphate pulp 75-85%, bleaching softwood kraft pulp 15-25%.
Certainly, the coating weight of above-mentioned precoated shet 104, core coating 105, finishing coat 106; Wood pulp component in surface layer 103, sandwich layer 102 and bottom 101 and percentage by weight can be also other coating weight and percentage, the utility model limits this, be that good as a comparison embodiment is exemplified, can not think the restriction to technical solutions of the utility model.
See also Fig. 2, the production technology of above-mentioned grease proofing coated white cardboard comprises the following steps:
Operating weight percentage is that the bleaching broad-leaved wood sulphate pulp of 80-95%, the bleaching softwood kraft pulp of 5-20% are made into surface layer slurry.
Operating weight percentage is that the bleached chemical thermomechanical pulp of 65-75%, the broken of 25-35% are made into center stock.
Operating weight percentage is that bleaching broad-leaved wood sulphate pulp, the 15-25% bleaching softwood kraft pulp of 75-85% is made into base pastes.
Above-mentioned three kinds of slurries enter respectively the paper machine of three cascade net moulding after the mixing of pulper size degradation, mill paste mill grinding, with slurry; In paper machine inner filtration, three cascade net moulding, produce have surface layer 103, the l Water Paper page of sandwich layer 102 and bottom 101, this l Water Paper page is dry through paper machine, after top sizing body paper.
Then, coating: coating precoated shet 104 on surface layer 103, be coated with cloth wick coating 105 on precoated shet 104, coated face coating 106 on core coating 105 is carried on the back at the bottom-surface coated of bottom 101 and is coated with anti-oil reservoir 107.
Enter reeling end after drying, batch, turn again the packing finished product.
Coating composition and proportioning parts by weight that described this back of the body is coated with anti-oil reservoir are: 100 parts of pigment, 50～100 parts, latex, 0～50 part of grease proofing starch, 0.1～0.6 part of carboxymethyl cellulose, 0.05～0.12 part of dispersant, 0.3～1.0 part of water repellent agent, 0.3～1.2 part of lubricant, 0.035 part of defoamer, 0.05～0.2 part, caustic soda, 0.05～0.3 part, bactericide.Wherein, 100 parts of pigment are comprised of the calcium carbonate and the china clay that carry out proportioning by any parts by weight; That is, 100 parts of pigment can be formed or formed or formed 100 parts of pigment for calcium carbonate mixes with china clay by 100 parts of china clay by 100 parts of calcium carbonate.
Above-mentioned precoated shet 104, core coating 105, finishing coat 106 all adopt traditional handicraft coating coating used to get final product.
More excellent, the coating weight of this precoated shet 104, this core coating 105, this finishing coat 106 is respectively 8 g/ms, 12 g/ms, 12 g/ms.
Embodiment one:
Surface layer slurry: wood pulp (percentage by weight: bleaching broad-leaved wood sulphate pulp 80%, bleaching softwood kraft pulp 20%) through the mixing of pulper size degradation, mill paste mill grinding, enters the paper machine veil and filters.
Center stock: wood pulp (percentage by weight: bleached chemical thermomechanical pulp 70%, broken 30%) through the mixing of pulper size degradation, mill paste mill grinding, enters papermaking movement net filtration.
Base pastes: wood pulp (percentage by weight: bleaching broad-leaved wood sulphate pulp 75%, bleaching softwood kraft pulp 25%) through the mixing of pulper size degradation, mill paste mill grinding, enters the paper machine veil and filters.
Then, through paper machine three cascade net moulding, produce have surface layer 103, the l Water Paper page of sandwich layer 102 and bottom 101, this l Water Paper page is dry through paper machine, after top sizing body paper.
Then, coating: coating precoated shet 104 on surface layer 103, be coated with cloth wick coating 105 on precoated shet 104, coated face coating 106 on core coating 105 is carried on the back at the bottom-surface coated of bottom 101 and is coated with anti-oil reservoir 107.
At last, enter reeling end after drying, batch, turn again the packing finished product.
The coating formula that the back of the body is coated with anti-oil reservoir 107 is (parts by weight): 100 parts of pigment are all calcium carbonate, that is, 100 parts, calcium carbonate, 50 parts, latex, 30 parts of grease proofing starch, 0.1 part of carboxymethyl cellulose, 0.05 part of dispersant, 0.3 part of water repellent agent, 0.3 part of lubricant, 0.035 part of defoamer, 0.05 part, caustic soda, 0.05 part, bactericide.
The coating weight of precoated shet 104, core coating 105, finishing coat 106 is coated with by 8 g/ms, 12 g/ms, 12 g/ms respectively.
The grease proofing coated white cardboard of producing compares detection with identical quantitative common white paperboard on market, and its each side physical property all is better than the common white paperboard.
Following table is the common white paperboard of 280 g/ms and the physical index testing result of the disclosed grease proofing coated white cardboard of the utility model:
| Physical index | Unit | The common white paperboard | Grease proofing coated white cardboard |
| Quantitatively | g/m 2 | 280 | 280 |
| Thickness | μm | 390 | 385 |
| Grease proofing grade | mN.m | ＜1 grade | 5 grades |
Embodiment two
The making flow process of the present embodiment is identical with above-described embodiment one, and difference is: the wet end furnish of surface layer slurry, center stock, base pastes, the back of the body is coated with the coating formula of anti-oil reservoir.
Surface layer slurry (percentage by weight): bleaching broad-leaved wood sulphate pulp 95%, bleaching softwood kraft pulp 5%;
Center stock (percentage by weight): bleached chemical thermomechanical pulp 65%, broken 35%;
Base pastes (percentage by weight): bleaching broad-leaved wood sulphate pulp 85%, bleaching softwood kraft pulp 15%;
The coating formula that the back of the body is coated with anti-oil reservoir is (parts by weight): 100 parts of pigment are mixed with china clay by calcium carbonate and form, each 50 parts of calcium carbonate and china clay, 75 parts, latex, 0.6 part of carboxymethyl cellulose, 0.12 part of dispersant, 1 part of water repellent agent, 1.2 parts of lubricants, 0.035 part of defoamer, 0.2 part, caustic soda, 0.3 part, bactericide.
The coating weight of precoated shet 104, core coating 105, finishing coat 106 is coated with by 9 g/ms, 11 g/ms, 11 g/ms respectively.
The grease proofing coated white cardboard of producing compares detection with identical quantitative common white paperboard on market, and its each side physical property all is better than the common white paperboard.
Following table is the common white paperboard of 250 g/ms and the physical index testing result of the disclosed grease proofing coated white cardboard of the utility model:
| Physical index | Unit | The common white paperboard | Grease proofing coated white cardboard |
| Quantitatively | g/m 2 | 250 | 250 |
| Thickness | μm | 334 | 335 |
| Grease proofing grade | mN.m | ＜1 grade | 5 grades |
Embodiment three
Surface layer slurry (percentage by weight): bleaching broad-leaved wood sulphate pulp 90%, bleaching softwood kraft pulp 10%;
Center stock (percentage by weight): bleached chemical thermomechanical pulp 75%, broken 25%;
Base pastes (percentage by weight): bleaching broad-leaved wood sulphate pulp 80%, bleaching softwood kraft pulp 20%;
The coating formula that the back of the body is coated with anti-oil reservoir is (parts by weight): 100 parts of pigment all are comprised of china clay, that is, and and 100 parts of china clay, 100 parts, latex, 0.3 part of carboxymethyl cellulose, 0.08 part of dispersant, 0.7 part of water repellent agent, 0.8 part of lubricant, 0.035 part of defoamer, 0.12 part, caustic soda, 0.18 part, bactericide.
The coating weight of precoated shet 104, core coating 105, finishing coat 106 is coated with by 9 g/ms, 11 g/ms, 11 g/ms respectively.
The grease proofing coated white cardboard of producing compares detection with identical quantitative common white paperboard on market, and its each side physical property all is better than the common white paperboard.
Following table is the common white paperboard of 230 g/ms and the physical index testing result of the disclosed grease proofing coated white cardboard of the utility model:
| Physical index | Unit | The common white paperboard | Grease proofing coated white cardboard |
| Quantitatively | g/m 2 | 230 | 230 |
| Thickness | μm | 305 | 310 |
| Grease proofing grade | mN.m | ＜1 grade | 6 grades |
Embodiment four
Surface layer slurry (percentage by weight): bleaching broad-leaved wood sulphate pulp 90%, bleaching softwood kraft pulp 10%;
Center stock (percentage by weight): bleached chemical thermomechanical pulp 75%, broken 25%;
Base pastes (percentage by weight): bleaching broad-leaved wood sulphate pulp 80%, bleaching softwood kraft pulp 20%;
The coating formula that the back of the body is coated with anti-oil reservoir is (parts by weight): 100 parts of pigment all are comprised of china clay, namely, 100 parts of china clay, 50 parts, latex, 50 parts of grease proofing starch, 0.4 part of carboxymethyl cellulose, 0.1 part of dispersant, 0.1 part of water repellent agent, 0.3 part of lubricant, 0.035 part of defoamer, 0.05 part, caustic soda, 0.18 part, bactericide.
The coating weight of precoated shet 104, core coating 105, finishing coat 106 is coated with by 9 g/ms, 11 g/ms, 11 g/ms respectively.
The grease proofing coated white cardboard of producing compares detection with identical quantitative common white paperboard on market, and its each side physical property all is better than the common white paperboard.
Following table is the common white paperboard of 300 g/ms and the physical index testing result of the disclosed grease proofing coated white cardboard of the utility model:
| Physical index | Unit | The common white paperboard | Grease proofing coated white cardboard |
| Quantitatively | g/m 2 | 300 | 300 |
| Thickness | μm | 420 | 415 |
| Grease proofing grade | mN.m | ＜1 grade | 6 grades |
The above is only preferred embodiment of the present utility model, is not to limit practical range of the present utility model; Every equivalence of doing according to the utility model changes and revises, and is all covered by the scope of the utility model claims.
Claims (2)
1. a grease proofing coated white cardboard, comprise body paper and coating layer, it is characterized in that:
Described body paper comprises surface layer, sandwich layer and the bottom of stack successively; Described coating layer comprises that precoated shet, core coating, finishing coat and the back of the body are coated with anti-oil reservoir; This precoated shet is coated on this surface layer, and this core coating is coated on this precoated shet, and this finishing coat is coated on this precoated shet, and this back of the body is coated with the bottom surface that anti-oil reservoir is coated this bottom.
2. a kind of grease proofing coated white cardboard according to claim 1, it is characterized in that: the coating weight of described precoated shet, core coating, finishing coat is respectively 8 g/ms, 12 g/ms, 12 g/ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220587910 CN202989687U (en) | 2012-11-08 | 2012-11-08 | Oil-proof coating white cardboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220587910 CN202989687U (en) | 2012-11-08 | 2012-11-08 | Oil-proof coating white cardboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202989687U true CN202989687U (en) | 2013-06-12 |
Family
ID=48560881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220587910 Expired - Lifetime CN202989687U (en) | 2012-11-08 | 2012-11-08 | Oil-proof coating white cardboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202989687U (en) |
-
2012
- 2012-11-08 CN CN 201220587910 patent/CN202989687U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 519070, Qianshan Industrial Zone, Xiangzhou District, Guangdong, Zhuhai Patentee after: ZHUHAI HONGTA RENHENG PACKAGING CO.,LTD. Address before: 519070, Qianshan Industrial Zone, Xiangzhou District, Guangdong, Zhuhai Patentee before: ZHUHAI S E Z HONGTA RENHENG PAPER Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term |