CN101519858A - Direct vacuum aluminum-plated paper or paperboard and production process thereof - Google Patents

Direct vacuum aluminum-plated paper or paperboard and production process thereof Download PDF

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CN101519858A
CN101519858A CN200910019957A CN200910019957A CN101519858A CN 101519858 A CN101519858 A CN 101519858A CN 200910019957 A CN200910019957 A CN 200910019957A CN 200910019957 A CN200910019957 A CN 200910019957A CN 101519858 A CN101519858 A CN 101519858A
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paperboard
paper
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plated
coating
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CN101519858B (en
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郑佑礼
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Shandong Jinmai Material Technology Co ltd
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BOYUAN TECHNOLOGY MATERIAL (YANTAI) Co Ltd
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Abstract

The invention relates to direct vacuum aluminum-plated paper or paperboard and a production process and belongs to the technical field of packaging materials and decorative materials. The direct vacuum aluminum-plated paper or paperboard is characterized in that the direct vacuum aluminum-plated paper or paperboard is divided into four layers which are sequentially a paper substrate (1), a to-be-coated layer (2) which is subjected to curing treatment by electron beams, an aluminum-plated layer (3) and a surface coating layer (4) which is subjected to curing treatment by electron beams. The process comprises that: (1) paint is coated on the paper substrate to form the coating layer; and the coating layer is subjected to the curing treatment by the electron beams; (2) the coating layer is subjected to aluminum plating through a vacuum aluminum plating machine to form the aluminum-plated layer; (3) the paint is coated on the aluminum-plated layer to form the surface coating layer; and the surface coating layer is subjected to the curing treatment by the electron beams; and (4) a material of the surface coating layer which is subjected to the curing treatment is subjected to moisture detection and is replenished with water till the material reaches the requirement of the product standard. A product produced by the process has stable quality; the appearance quality, the texture, the stiffness and other indexes of the product are superior to a product which is produced by a widely-adopted thermal dryness and curing process currently; and the energy consumption of the product can be reduced by 20 percent above.

Description

A kind of direct vacuum aluminium-plated paper or paperboard and production technology
One, technical field
The present invention relates to a kind of vacuum aluminium-plated paper or paperboard and production technology, belong to packaging material and decorative materials technology.
Two, background technology
Vacuum aluminium-plated paper or paperboard since its to the excellent barrier properties of water and air with and to the consumption of metallic material of aluminum few and characteristics such as degradable, recyclable utilization, become a kind of novel environment friendly material, vast market space and good popularizing application prospect have been arranged.
The production technology of vacuum aluminium-plated paper or paperboard is divided into two kinds of direct Alplate method and transfer aluminum plated methods.Directly Alplate method is the method for directly aluminizing on its coat side by vacuum aluminum-coated machine at the material that has been coated with dope layer on the paper base material.Directly vacuum aluminium-plated paper comprises: paper base material, precoat (aluminium lamination), aluminium coated and finishing coat (aluminium protective layer).
Though the present direct vacuum aluminum-coated method that generally adopts compares to transfer aluminum plated method and has advantages such as technology is simple, itself has many intrinsic defectives and deficiency.Its shortcoming is as follows:
1, owing to when precoat and finishing coat are carried out drying and cured, adopt the technology of in baking oven, carrying out heated drying and curing, so the thermal efficiency is low, energy consumption is high;
Though 2 can make the volatile organic compounds (VOCs) of the coating that direct vacuum aluminium-plated paper or paperboard use be controlled within the scope of standard-required by technological design, the volatile organic compounds that itself contained still causes potential threat to environment and consumer health;
3, owing to adopt heated drying and curing process, the time of curing is longer, and usually at several seconds even tens seconds, thereby the speed of service and the production capacity of raising equipment are subjected to very big restriction.
Three, summary of the invention
Thereby must in baking oven, be heated with material in the present directly vacuum aluminium-plated paper technology and to make coating technology dry and that solidify different, the present invention adopts is that the high energy electron that utilizes electron beam to produce penetrates coating and base material and causes coating and produce Raolical polymerizable, thereby (several milliseconds) are solidified into free flowable liquid coating the technology of solid fast.
A kind of direct vacuum aluminium-plated paper of the present invention or paperboard, being divided into is 4 layers, the finishing coat 4 that is followed successively by paper base material 1, the precoat 2 through the electronic beam curing processing, aluminium coated 3 and handles through electronic beam curing;
Production technology may further comprise the steps:
(1), on the paper base material 1 of paper or paperboard, be coated with and coat, form precoat 2, and carry out electronic beam curing and handle;
(2), on precoat 2, utilize vacuum aluminum-coated machine to aluminize, form aluminium coated 3;
(3), on aluminium coated 3, be coated with and coat, form finishing coat 4, and carry out electronic beam curing and handle;
(4), the material of finishing coat 4 cured is carried out water content detection and keep the skin wet to the requirement of product standard.
Coating in the described step (1) flows to dispense tip by pipeline, the coating temperature remains on 24 ℃-25 ℃, to guarantee the stable of the stable and coating weight of dope viscosity, then paper base material 1 is coated with, coating weight is controlled by the pressure of adjusting between roller 5 and the hard rubber roller 6, relation between pressure and the coating weight can be tried to achieve by test method, and wherein the precoat coating weight of paper is controlled at 2.3-2.4g/m 2, the precoat coating weight of paperboard is controlled at 3.5-4.5g/m 2(equal 100% solid content of above coating weight);
Described step (2), the moisture of coiled strip is at 3%-5.5% in the vacuum aluminum-coated machine;
Described step (2), the THICKNESS CONTROL of aluminium coated 3 is at 300-400A;
Described step (3), finishing coat 4 coating weights of paper or paperboard are controlled at 1.2-1.8g/m 2
For the surface tension that makes coating more than or equal to 38 dyne, described step (2) will be carried out corona treatment before;
The electronic beam curing that adopt described step (1) and (3) is handled, be embodied in: the high energy electron that produces by electron beam generator 8 passes precoat 2 or finishing coat 4 and paper base material 1, thereby make coating produce Raolical polymerizable, the most free flowable liquid coating is solidified into solid apace;
The voltage and current size of the equipment that the electronic beam curing processing is adopted in described step (1) and (3) has determined the processing horizontal of product; The penetration capacity of voltage decision electronics, the linear velocity of electric current and product have determined the electron radiation dosage level that product receives, and dosage level is directly proportional with the size of current of electron beam, are inversely proportional to the linear velocity of product; To the present invention given base material and coating weight, the voltage of equipment is chosen as 110KV and 125KV, dosage of radiation and velocity amplitude are chosen as 25000KG yM/min and 22000KG yM/min;
Described coating 7 be according to paper or paperboard itself to its specification requirement, two or more resin monomer of suitability for industrialized production is modulated generation, this coating issues living Raolical polymerizable in the initiation of high energy electron;
The necessary inflated with nitrogen of consolidation zone between described electron beam generator 8 and the coating 7, the oxygen content of consolidation zone should be lower than 100PPM.
The production technology of direct vacuum aluminium-plated paper of the present invention or paperboard can produce following beneficial effect:
Therefore 1, selected coating is 100% solid content, does not contain any solvent based material, does not contain any volatile organic compounds, helps protecting that environment and consumer's is healthy; 2, coating weight control is even, and constant product quality, indexs such as its product appearance quality, texture and deflection obviously are better than the heated drying of extensive employing at present and the product that curing process is produced; 3, owing to adopted the electronic beam curing treatment process, thereby the unit product power consumption can reduce more than 20%; 4, owing to adopted big volume production and high-moisture to aluminize, help raising labour productivity and reducing product cost, be fit to direct vacuum aluminium-plated paper of big industrial production or paperboard.
The production technology of direct vacuum aluminium-plated paper of the present invention or paperboard is applicable to 40-120g/m 2Vacuum aluminium-plated paper, or 120-230g/m 2Vacuum aluminizing paperboard.
Four, description of drawings
Fig. 1: be direct vacuum aluminium-plated paper of the present invention or paperboard structural representation;
Fig. 2: be dispense tip structural representation of the present invention;
Fig. 3; For electronic beam curing of the present invention is handled structural representation;
Among the figure: 1, paper base material, 2, precoat, 3, aluminium coated, 4, finishing coat, 5, adjust roller 5,6, hard rubber roller, 7, coating, 8, electron beam generator.
Five, the specific embodiment
Following with reference to accompanying drawing, provide the specific embodiment of the present invention, be used for formation of the present invention is further specified.
Embodiment 1
The direct vacuum aluminium-plated paper of present embodiment or paperboard are with reference to figure 1-3, direct vacuum aluminium-plated paper or paperboard, being divided into is 4 layers, the finishing coat 4 that is followed successively by paper base material 1, precoat 2, aluminium coated 3 and handles through electronic beam curing through the electronic beam curing processing, and its production technology may further comprise the steps:
(1), on the paper base material 1 of paper or paperboard, be coated with and coat, form precoat 2, and carry out electronic beam curing and handle; Coating is to flow to dispense tip by pipeline, then paper base material 1 is coated with, and coating weight is controlled by the pressure of adjusting between roller 5 and the hard rubber roller 6, and the relation between pressure and the coating weight can be tried to achieve by test method, wherein 120g/m 2The precoat coating weight of following paper is controlled at 2.3-2.4g/m 2, the precoat coating weight of paperboard is controlled at 3.5-4.5g/m 2Described electronic beam curing is handled and is embodied in: the high energy electron that produces by electron beam generator 8 passes precoat 2 and paper base material 1, thereby makes coating produce Raolical polymerizable, and the most free flowable liquid coating is solidified into solid apace; The necessary inflated with nitrogen of consolidation zone between electron beam generator 8 and the coating, the oxygen content of consolidation zone should be lower than 100PPM;
The voltage and current size of the equipment that the electronic beam curing processing is adopted has determined the processing horizontal of product.The penetration capacity of voltage decision electronics, the linear velocity of electric current and product have determined the electron radiation dosage level that product receives, and dosage level is directly proportional with the size of current of electron beam, are inversely proportional to the linear velocity of product.To the present invention given base material and coating weight, the voltage of equipment is chosen as 110KV and 125KV, dosage of radiation and velocity amplitude are chosen as 25000KG yM/min and 22000KG yM/min;
(2), on precoat 2, utilize vacuum aluminum-coated machine to aluminize, form aluminium coated 3; The coiled strip moisture Control of vacuum aluminum-coated machine is at 3%-5.5%, and the THICKNESS CONTROL of aluminium coated 3 is at 300-400A; Step (2) will be carried out corona treatment before, so that the surface tension of coating is more than or equal to 38 dyne;
(3), on aluminium coated 3, be coated with and coat, form finishing coat 4, and carry out electronic beam curing and handle; Finishing coat 4 coating weights of paper or paperboard are controlled at 1.2-1.8g/m 2Described electronic beam curing is handled and is embodied in: the high energy electron that produces by electron beam generator 8 passes finishing coat 4 and paper base material 1, thereby makes coating produce Raolical polymerizable, and the most free flowable liquid coating is solidified into solid apace; The necessary inflated with nitrogen of consolidation zone between electron beam generator 8 and the coating 7, the oxygen content of consolidation zone should be lower than 100PPM;
Coating 7 be according to paper or paperboard itself to its specification requirement, the resin monomer of general two or more is modulated generation in the industry with suitability for industrialized production, Raolical polymerizable can take place in this coating under the initiation of high energy electron;
The voltage and current size of the equipment that the electronic beam curing processing is adopted has determined the processing horizontal of product.The penetration capacity of voltage decision electronics, the linear velocity of electric current and product have determined the electron radiation dosage level that product receives, and dosage level is directly proportional with the size of current of electron beam, are inversely proportional to the linear velocity of product.To the present invention given base material and coating weight, the voltage of equipment is chosen as 110KV and 125KV, dosage of radiation and velocity amplitude are chosen as 25000KG yM/min and 22000KG yM/min;
(4), the material of finishing coat 4 cured is carried out water content detection and keep the skin wet to the requirement of product standard.
The production technology of direct vacuum aluminum-plated paper of the present invention or paperboard can produce following beneficial effect:
1, selected coating is 100% solid content, does not contain any solvent based material, does not therefore contain any waving The property sent out organic compound is conducive to the healthy of protection of the environment and consumer; 2, coating weight control is even, Constant product quality, the indexs such as its product appearance quality, texture and deflection obviously are better than extensively adopting at present The product that heated drying and curing process are produced; 3, owing to adopted the electronic beam curing treatment process, thus single Position product power consumption can reduce more than 20%; 4, owing to adopted big volume production and high-moisture to aluminize, be conducive to Raise labour productivity and reduce product cost, be fit to big industrial production direct vacuum aluminum-plated paper or paperboard.

Claims (10)

1, a kind of direct vacuum aluminium-plated paper or paperboard, it is characterized in that being divided into is 4 layers, the finishing coat (4) that is followed successively by paper base material (1), the precoat (2) through the electronic beam curing processing, aluminium coated (3) and handles through electronic beam curing.
2, the production technology of a kind of direct vacuum aluminium-plated paper or paperboard is characterized in that may further comprise the steps:
(1), on the paper base material (1) that is suitable for paper or paperboard, be coated with and coat, form precoat (2), and carry out electronic beam curing and handle;
(2), on precoat (2), utilize vacuum aluminum-coated machine to aluminize, form aluminium coated (3);
(3), on aluminium coated (3), be coated with and coat, form finishing coat (4), and carry out electronic beam curing and handle;
(4), the material of finishing coat (4) cured is carried out water content detection and keep the skin wet to the requirement of product standard.
3, according to the production technology of described a kind of direct vacuum aluminium-plated paper of claim 2 or paperboard, it is characterized in that the coating in the described step (1) flows to dispense tip by pipeline, the coating temperature remains on 24 ° of c-25 ° of c, then paper base material (1) is coated with, coating weight is controlled by the pressure of adjusting between roller (5) and the hard rubber roller (6), and wherein the precoat coating weight of paper is controlled at 2.3-2.4g/m 2, the precoat coating weight of paperboard is controlled at 3.5-4.5g/m 2, equal 100% solid content of above coating weight.
4, according to the production technology of described a kind of direct vacuum aluminium-plated paper of claim 2 or paperboard, it is characterized in that the moisture of coiled strip is at 3%-5.5% in the vacuum aluminum-coated machine in the described step (2), the thickness of aluminium coated (3) exists
Figure A200910019957C00021
5,, it is characterized in that finishing coat (4) coating weight of middle paper of described step (3) or paperboard is controlled at 1.2-1.8g/m according to the production technology of described a kind of direct vacuum aluminium-plated paper of claim 2 or paperboard 2
6,, it is characterized in that described step (2) carries out corona treatment before according to the production technology of described a kind of direct vacuum aluminium-plated paper of claim 2 or paperboard.
7, according to the production technology of described a kind of direct vacuum aluminium-plated paper of claim 2 or paperboard, the electronic beam curing that it is characterized in that described step (1) and (3) employing is handled, be embodied in: the high energy electron that produces by electron beam generator (8) passes precoat (2) or finishing coat (4) and paper base material (1), thereby make coating produce Raolical polymerizable, the most free flowable liquid coating is solidified into solid apace.
8, according to the production technology of described a kind of direct vacuum aluminium-plated paper of claim 2 or paperboard, the voltage that it is characterized in that the equipment that the electronic beam curing processing is adopted in described step (1) and (3) is chosen as 110KV and 125KV, and dosage of radiation and velocity amplitude are chosen as 25000KG yM/min and 22000KG yM/min.
9, according to the production technology of described a kind of direct vacuum aluminium-plated paper of claim 2 or paperboard, it is characterized in that described coating (7) is that two or more resin monomer is modulated generation, Raolical polymerizable can take place in this coating under the initiation of high energy electron.
10, according to the production technology of described a kind of direct vacuum aluminium-plated paper of claim 2 or paperboard, it is characterized in that the consolidation zone inflated with nitrogen between described electron beam generator (8) and the coating (7), the oxygen content of consolidation zone is lower than 100PPM.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102392385A (en) * 2011-09-06 2012-03-28 红云红河烟草(集团)有限责任公司 Environmentally-friendly dope for solidifying direct-vacuum aluminized paper by electron beam and preparation method thereof
CN102504695A (en) * 2011-12-22 2012-06-20 博源科技材料(烟台)有限公司 Electron beam curing ground coating for vacuum aluminum directly plated paper and method for preparing same
CN102505561A (en) * 2011-12-22 2012-06-20 博源科技材料(烟台)有限公司 Electron beam curing surface protective coating for direct vacuum aluminum-plated paper and preparation method thereof
CN103362034A (en) * 2013-06-24 2013-10-23 上海绿新包装材料科技股份有限公司 Directly plated aluminium paper solidified by electronic beam
CN114808527A (en) * 2022-04-26 2022-07-29 广东达益新材料有限公司 Casting and curing process of coated paper pigment mixing cylinder based on film casting method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102392385A (en) * 2011-09-06 2012-03-28 红云红河烟草(集团)有限责任公司 Environmentally-friendly dope for solidifying direct-vacuum aluminized paper by electron beam and preparation method thereof
CN102392385B (en) * 2011-09-06 2014-01-01 红云红河烟草(集团)有限责任公司 Environmentally-friendly dope for solidifying direct-vacuum aluminized paper by electron beam and preparation method thereof
CN102504695A (en) * 2011-12-22 2012-06-20 博源科技材料(烟台)有限公司 Electron beam curing ground coating for vacuum aluminum directly plated paper and method for preparing same
CN102505561A (en) * 2011-12-22 2012-06-20 博源科技材料(烟台)有限公司 Electron beam curing surface protective coating for direct vacuum aluminum-plated paper and preparation method thereof
CN103362034A (en) * 2013-06-24 2013-10-23 上海绿新包装材料科技股份有限公司 Directly plated aluminium paper solidified by electronic beam
CN114808527A (en) * 2022-04-26 2022-07-29 广东达益新材料有限公司 Casting and curing process of coated paper pigment mixing cylinder based on film casting method

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Owner name: YANTAI BOYUAN TECHNOLOGY MATERIALS CO., LTD.

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