CN114228304A - Novel aluminum foil paper bonding process for cigarettes - Google Patents
Novel aluminum foil paper bonding process for cigarettes Download PDFInfo
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- CN114228304A CN114228304A CN202111642095.3A CN202111642095A CN114228304A CN 114228304 A CN114228304 A CN 114228304A CN 202111642095 A CN202111642095 A CN 202111642095A CN 114228304 A CN114228304 A CN 114228304A
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- plastic film
- aluminum foil
- paper
- layer
- base paper
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 59
- 239000011888 foil Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 35
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 16
- 239000002985 plastic film Substances 0.000 claims abstract description 53
- 229920006255 plastic film Polymers 0.000 claims abstract description 53
- 239000010410 layer Substances 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000003973 paint Substances 0.000 claims abstract description 38
- 229920002472 Starch Polymers 0.000 claims abstract description 22
- 239000008107 starch Substances 0.000 claims abstract description 22
- 235000019698 starch Nutrition 0.000 claims abstract description 21
- 239000003292 glue Substances 0.000 claims abstract description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 13
- 239000010703 silicon Substances 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims abstract description 11
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 239000012790 adhesive layer Substances 0.000 claims abstract description 9
- 239000002002 slurry Substances 0.000 claims abstract description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 5
- 238000005266 casting Methods 0.000 claims abstract description 5
- 238000010409 ironing Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000002844 melting Methods 0.000 claims abstract description 4
- 230000008018 melting Effects 0.000 claims abstract description 4
- 238000002791 soaking Methods 0.000 claims abstract description 4
- 238000001291 vacuum drying Methods 0.000 claims abstract description 4
- 239000002585 base Substances 0.000 claims description 32
- 238000010438 heat treatment Methods 0.000 claims description 21
- 239000000243 solution Substances 0.000 claims description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 239000002274 desiccant Substances 0.000 claims description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- 239000012298 atmosphere Substances 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 claims description 8
- 229920001131 Pulp (paper) Polymers 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 235000011837 pasties Nutrition 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- YAXWOADCWUUUNX-UHFFFAOYSA-N 1,2,2,3-tetramethylpiperidine Chemical compound CC1CCCN(C)C1(C)C YAXWOADCWUUUNX-UHFFFAOYSA-N 0.000 claims description 2
- RKMGAJGJIURJSJ-UHFFFAOYSA-N 2,2,6,6-Tetramethylpiperidine Substances CC1(C)CCCC(C)(C)N1 RKMGAJGJIURJSJ-UHFFFAOYSA-N 0.000 claims description 2
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 claims description 2
- 229920002799 BoPET Polymers 0.000 claims description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 2
- 238000010533 azeotropic distillation Methods 0.000 claims description 2
- 239000011127 biaxially oriented polypropylene Substances 0.000 claims description 2
- 229920006378 biaxially oriented polypropylene Polymers 0.000 claims description 2
- 230000018044 dehydration Effects 0.000 claims description 2
- 238000006297 dehydration reaction Methods 0.000 claims description 2
- 150000002009 diols Chemical class 0.000 claims description 2
- 239000012948 isocyanate Substances 0.000 claims description 2
- 150000002513 isocyanates Chemical class 0.000 claims description 2
- 239000011259 mixed solution Substances 0.000 claims description 2
- 238000006386 neutralization reaction Methods 0.000 claims description 2
- 238000012643 polycondensation polymerization Methods 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000007731 hot pressing Methods 0.000 abstract description 2
- 238000007738 vacuum evaporation Methods 0.000 abstract description 2
- 238000010025 steaming Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/20—Metallic material, boron or silicon on organic substrates
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
- B32B2037/243—Coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2553/00—Packaging equipment or accessories not otherwise provided for
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
- Paper (AREA)
Abstract
The invention discloses a novel aluminum foil paper bonding process for cigarettes, which comprises the following steps: s1, coating the silicon modified aqueous polyurethane resin glue solution on the surface of the plastic film, casting and leveling; s2, vacuum drying to form a paint layer; s3, carrying out vacuum evaporation on the paint layer to obtain an aluminum-plated layer; s4, coating starch slurry on the plastic film, spraying dilute soda solution, pasting, rolling to form a wet adhesive layer, attaching lining base paper, and ironing by steam; s5, vacuum drying to obtain the finished product of the aluminum foil paper; and S6, steaming the raw paper by using water vapor, recovering the raw paper, soaking the raw paper in hot water, peeling off the plastic film, decomposing the paint layer, melting the filter residue, and cooling the filter residue to obtain the aluminum ingot. The plastic film is simultaneously used as a carrier of the aluminized paint layer, an adherend of the base paper and a waterproof isolating layer, and the base paper, the aluminum foil and the film can be completely recycled; the process of the invention can be completely suitable for long-distance industrialized workshops such as roller extrusion, straightening, hot pressing and the like, and the obtained aluminum foil paper has high strength and good waterproofness and can be popularized to various packaging fields.
Description
Technical Field
The invention relates to the technical field of adhesion of aluminum foil paper for cigarettes, in particular to a novel adhesion process of aluminum foil paper for cigarettes.
Background
The aluminum foil paper for the traditional cigarette is generally compounded by aluminum foil and lining base paper through an adhesive, and mainly has the functions of wrapping, water proofing, moisture proofing, anti-counterfeiting, attractive appearance and the like.
However, the existing aluminum foil paper has a great recovery problem, and the main problem lies in the stripping process of the waste aluminum foil and the lining base paper, because a stripping agent is generally added, the components of paper pulp obtained by stripping are complex, the secondary utilization value is low, the obtained aluminum foil needs to be further separated, and the cost is high.
In recent years, a mode of preparing aluminum-foil paper by vacuum evaporation is more and more popular, and the mode can greatly reduce the aluminum consumption and improve the production efficiency. However, the existing method of directly evaporating on the surface of lining base paper has high requirements on paper quality, has high requirements on the water content of the base paper during evaporation (less than 3%), is easy to become brittle when the water content of the base paper is low, and is not beneficial to further roll walking.
Based on the above research results, the present invention provides a new adhesion process for evaporation aluminum-foil paper, which is more suitable for industrial production.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a novel aluminum foil paper bonding process for cigarettes.
In order to achieve the purpose, the invention adopts the following technical scheme:
a novel aluminum foil paper bonding process for cigarettes comprises the following steps:
s1, coating a layer of silicon modified aqueous polyurethane resin glue solution on the surface of the plastic film, drying until the water content is less than 1%, fully casting to be uniform, and leveling;
s2, placing the plastic film in vacuum for aluminizingIn the reaction cavity of the machine, the glue solution is positioned on the upper surface of the plastic film, the vacuum pump group is started, and the target air pressure is controlled to be 1.3 multiplied by 10－2-1.3×10-3Pa, heating the atmosphere in the aluminized cavity to make the atmosphere temperature of the cavity 100 ℃, and introducing nitrogen for three times at intervals of 10min to form a smooth paint layer on the surface of the plastic film;
s3, turning the plastic film to make the paint layer on the lower surface of the plastic film, exhausting air until the air pressure in the cavity reaches 1.3 × 10－2-1.3×10-3In the range of Pa, starting a heating crucible, heating an aluminum wire with the purity of more than 99%, and evaporating at 1350 ℃ and 1450 ℃ for 5-10min until a paint layer is coated with a bright aluminum-plated layer;
s4, coating starch slurry prepared by starch and water on the upper surface of the plastic film, spraying a small amount of soda dilute solution, keeping the temperature at 95 ℃ for 10min until the mixture is pasty, padding a heating flat plate at the bottom, rolling the mixture by a hot roller at 100 ℃, drying the mixture by hot air until the water content is less than 30%, forming a relatively wet adhesive layer, attaching lining base paper, and ironing by steam;
s5, spraying a drying agent on the surface of lining base paper, uniformly smearing, drying in vacuum until the water content is less than 5%, rolling and forming at room temperature, and finally removing the drying agent by using a brush to obtain the finished product of the aluminum foil paper;
s6, when in recovery, the lining base paper is positioned at the lowest layer, finished aluminum foil paper is steamed by steam at 150 ℃, after the adhesive layer is softened, the lining base paper is torn off, crushed and dissolved by adding alkali to prepare paper pulp mixed with partial starch paste, and the paper pulp is dried to prepare new base paper for recovery and standby;
soaking the rest part in 80 deg.C water for 10-20min, peeling off plastic film, dissolving in boiling water to remove starch paste, removing water, melt-extruding the obtained plastic film, and recovering;
adding the aluminum foil carrying the paint layer into a decomposing furnace, and decomposing at 450 ℃ under the nitrogen condition to remove the paint layer;
and adding the obtained aluminum foil into a 700 ℃ melting furnace, filtering to remove slag, cooling to obtain an aluminum ingot with the purity of more than 98%, heating to 680 ℃ to prepare an aluminum wire, and recycling for later use.
Preferably, the plastic film is in particular a BOPP film or a PET film. The plastic film is directly used as a carrier of a paint layer, a transfer process is also omitted, the plastic film is directly bonded with base paper through starch paste to play a role in isolating aluminum foil from paper, and the plastic film is also used as a waterproof layer of an interlayer, so that the aluminum foil paper obtained by the invention can be directly used for packaging food, namely a novel aluminum foil paper composite structure of aluminum foil-paint-plastic film-starch paste-base paper is formed.
Preferably, the silicon modified aqueous polyurethane resin glue solution is prepared by the following method: polyester diol, isocyanate and tetramethyl piperidine react for 2 hours at the temperature of 90 ℃, dimethylolpropionic acid, ethanol and a small amount of acetone are added, acetone and N-methyl pyrrolidone are added, the mixture is stirred for 0.5 hour at the temperature of 60 ℃, the-NCO content is measured to reach a specified value, ethylenediamine is added for neutralization until the pH value is 8-9, a toluene and water mixed solution obtained by condensation polymerization of silicon resin is dropwise added, the temperature is increased for azeotropic removal of a small molecular solvent and most of water under strong stirring, and activated carbon is added for decoloration and dehydration to obtain a silicon modified waterborne polyurethane resin adhesive solution. The aqueous glue solution is adopted, so that the plastic film can be quickly separated from the paint layer in subsequent hot water.
Preferably, the viscosity of the adhesive layer obtained in S4 is 800. + -. 50cmg, BU at 95 ℃.
Preferably, the vacuum drying process in step S5 is as follows: spraying a drying agent on the surface of the lining base paper, uniformly smearing, heating by a hot plate at the bottom under a vacuum condition to 60 ℃, repeatedly rolling by a 100 ℃ hot roller along the transverse direction of the base paper to be uniformly dried.
Preferably, the washing water obtained by washing the starch paste in the step S6 is returned to the step 4) for recycling by concentrating into starch slurry with the concentration of 40%.
Compared with the prior art, the invention has the beneficial effects that:
aiming at the defects that the requirements of a direct evaporation method on the water content and the strength of paper in the existing aluminum-foil paper process are high and the film stripping process required by a transfer method cannot be completely industrialized, the invention uses a plastic film as an interlayer of an aluminum foil and base paper, and simultaneously as a carrier of an aluminum-plated paint layer, an adherend of the base paper and a waterproof isolation layer, thereby being very beneficial to completely recycling the base paper, the aluminum foil and the film, and only consuming the paint layer and a small amount of starch paste in the recycling process.
And because the plastic film with higher strength is added, the process can be completely suitable for long-distance industrial workshops such as roller extrusion, straightening, hot pressing and the like, and the obtained aluminum-foil paper has higher strength and very good waterproofness and can be popularized to the field of aluminum-foil paper packaging of various foods.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example 1:
a novel aluminum foil paper bonding process for cigarettes comprises the following steps:
s1, coating a layer of silicon modified aqueous polyurethane resin glue solution on the surface of the plastic film, drying until the water content is less than 1%, fully casting to be uniform, and leveling;
s2, placing the plastic film in a reaction cavity of a vacuum aluminum plating machine, placing the glue solution on the upper surface of the plastic film, starting a vacuum pump set, and controlling the target air pressure to be 1.3 multiplied by 10－2-1.3×10-3Pa, heating the atmosphere in the aluminized cavity to make the atmosphere temperature of the cavity 100 ℃, and introducing nitrogen for three times at intervals of 10min to form a smooth paint layer on the surface of the plastic film;
s3, turning the plastic film to make the paint layer on the lower surface of the plastic film, exhausting air until the air pressure in the cavity reaches 1.3 × 10－2-1.3×10-3In the range of Pa, starting a heating crucible, heating an aluminum wire with the purity of more than 99%, and evaporating at 1350 ℃ and 1450 ℃ for 5-10min until a paint layer is coated with a bright aluminum-plated layer;
s4, coating starch slurry prepared by starch and water on the upper surface of the plastic film, spraying a small amount of soda dilute solution, keeping the temperature at 95 ℃ for 10min until the mixture is pasty, padding a heating flat plate at the bottom, rolling the mixture by a hot roller at 100 ℃, drying the mixture by hot air until the water content is less than 30%, forming a relatively wet adhesive layer, attaching lining base paper, and ironing by steam;
s5, spraying a drying agent on the surface of lining base paper, uniformly smearing, drying in vacuum until the water content is less than 5%, rolling and forming at room temperature, and finally removing the drying agent by using a brush to obtain the finished product of the aluminum foil paper;
s6, when in recovery, the lining base paper is positioned at the lowest layer, finished aluminum foil paper is steamed by steam at 150 ℃, after the adhesive layer is softened, the lining base paper is torn off, crushed and dissolved by adding alkali to prepare paper pulp mixed with partial starch paste, and the paper pulp is dried to prepare new base paper for recovery and standby;
soaking the rest part in 80 deg.C water for 10-20min, peeling off plastic film, dissolving in boiling water to remove starch paste, removing water, melt-extruding the obtained plastic film, and recovering;
adding the aluminum foil carrying the paint layer into a decomposing furnace, and decomposing at 450 ℃ under the nitrogen condition to remove the paint layer;
and adding the obtained aluminum foil into a 700 ℃ melting furnace, filtering to remove slag, cooling to obtain an aluminum ingot with the purity of more than 98%, heating to 680 ℃, adding an extracting agent to remove impurities, preparing an aluminum wire with the purity of more than 99%, and recycling for later use.
Comparative example 1:
a novel aluminum foil paper bonding process for cigarettes comprises the following steps:
s1, coating a layer of silicon modified aqueous polyurethane resin glue solution on the surface of the plastic film, drying until the water content is less than 1%, fully casting to be uniform, and leveling;
s2, placing the plastic film in a reaction cavity of a vacuum aluminum plating machine, placing the glue solution on the upper surface of the plastic film, starting a vacuum pump set, and controlling the target air pressure to be 1.3 multiplied by 10－2-1.3×10-3Pa, heating the atmosphere in the aluminized cavity to make the atmosphere temperature of the cavity 100 ℃, and introducing nitrogen for three times at intervals of 10min to form a smooth paint layer on the surface of the plastic film;
s3, turning the plastic film to make the paint layer on the lower surface of the plastic film, exhausting air until the air pressure in the cavity reaches 1.3 × 10－2-1.3×10-3In the range of Pa, starting a heating crucible, heating an aluminum wire with the purity of more than 99%, and evaporating at 1350 ℃ and 1450 ℃ for 5-10min until a paint layer is coated with a bright aluminum-plated layer;
s4, adhering one surface of a plastic film by using an adhesive tape, coating starch slurry prepared by starch and water on the upper surface of a paint layer with an aluminum coating, spraying a small amount of dilute soda solution, keeping the temperature at 95 ℃ for 10min until the paint layer becomes pasty, heating a flat plate by using a bottom pad, rolling by using a 100 ℃ hot roller, drying by using hot air until the water content is less than 30% to form a wet adhesive layer, adhering lining base paper, and ironing by using steam;
s5, spraying a drying agent on the surface of the lining base paper, uniformly smearing, drying in vacuum until the water content is less than 5%, rolling and forming at room temperature, and finally removing the drying agent by using a brush to obtain the finished product of the aluminum foil paper.
Comparative example 1 adopts a transfer method, the rest steps are the same as those of example 1, in the transfer process, the plastic film needs to be torn off, the adhesive tape can be used for adhering and tearing off the plastic film under the small-scale condition of a laboratory, but in the actual film transfer process, the paint layer is easy to crack whether the aluminum foil or the paint is directly contacted with the roller, and based on the transfer roller test of comparative example 1, the invention tries to directly adopt the method of adhering the plastic film to the base paper, so that the method is more suitable for industrial automatic production.
Comparative example 2:
the other steps are completely the same as the example 1, the oil-based polyurethane paint is used for replacing the paint layer, the adhesion of the obtained oil-based paint layer and the plastic film is strong, the film is easy to damage in the process of tearing off the film, and the obtained plastic film cannot be completely removed.
Comparative example 3:
the other steps are completely the same as the example 1, the paint layer is replaced by the polyurethane resin glue solution which is not modified by silicon, the obtained water-based paint layer does not contain silicon, namely, the silicon resin is not added in the last step of the water-based polyurethane resin glue solution, the obtained paint film has good properties and higher transparency than the example 1, and the pure white paint layer in the example 1 is more suitable for being added with pigment to prepare anti-counterfeiting layers with various colors or interlayers.
However, the peeling test of comparative example 3 found that the silicone-free paint layer had a low surface smoothness and a strong adhesive strength to the plastic film, resulting in a high peeling strength, and that the subsequent peeling method by hot water immersion was not applicable at all, and that a small portion was still damaged during peeling off the film, and the resulting plastic film could not be completely removed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The novel aluminum foil paper bonding process for the cigarettes is characterized by comprising the following steps of:
s1, coating a layer of silicon modified aqueous polyurethane resin glue solution on the surface of the plastic film, drying until the water content is less than 1%, fully casting to be uniform, and leveling;
s2, placing the plastic film in a reaction cavity of a vacuum aluminum plating machine, placing the glue solution on the upper surface of the plastic film, starting a vacuum pump set, and controlling the target air pressure to be 1.3 multiplied by 10－2-1.3×10-3Pa, heating the atmosphere in the aluminized cavity to make the atmosphere temperature of the cavity 100 ℃, and introducing nitrogen for three times at intervals of 10min to form a smooth paint layer on the surface of the plastic film;
s3, turning the plastic film to make the paint layer on the lower surface of the plastic film, exhausting air until the air pressure in the cavity reaches 1.3 × 10－2-1.3×10-3In the range of Pa, starting a heating crucible, heating an aluminum wire with the purity of more than 99%, and evaporating at 1350 ℃ and 1450 ℃ for 5-10min until a paint layer is coated with a bright aluminum-plated layer;
s4, coating starch slurry prepared by starch and water on the upper surface of the plastic film, spraying a small amount of soda dilute solution, keeping the temperature at 95 ℃ for 10min until the mixture is pasty, padding a heating flat plate at the bottom, rolling the mixture by a hot roller at 100 ℃, drying the mixture by hot air until the water content is less than 30%, forming a relatively wet adhesive layer, attaching lining base paper, and ironing by steam;
s5, spraying a drying agent on the surface of lining base paper, uniformly smearing, drying in vacuum until the water content is less than 5%, rolling and forming at room temperature, and finally removing the drying agent by using a brush to obtain the finished product of the aluminum foil paper;
s6, when in recovery, the lining base paper is positioned at the lowest layer, finished aluminum foil paper is steamed by steam at 150 ℃, after the adhesive layer is softened, the lining base paper is torn off, crushed and dissolved by adding alkali to prepare paper pulp mixed with partial starch paste, and the paper pulp is dried to prepare new base paper for recovery and standby;
soaking the rest part in 80 deg.C water for 10-20min, peeling off plastic film, dissolving in boiling water to remove starch paste, removing water, melt-extruding the obtained plastic film, and recovering;
adding the aluminum foil carrying the paint layer into a decomposing furnace, and decomposing at 450 ℃ under the nitrogen condition to remove the paint layer;
and adding the obtained aluminum foil into a 700 ℃ melting furnace, filtering to remove slag, cooling to obtain an aluminum ingot with the purity of more than 98%, heating to 680 ℃ to prepare an aluminum wire, and recycling for later use.
2. The novel aluminum foil paper bonding process for cigarettes as claimed in claim 1, wherein the plastic film is a BOPP film or a PET film.
3. The novel aluminum foil paper bonding process for cigarettes as claimed in claim 1, wherein the silicon-modified aqueous polyurethane resin glue solution is prepared by the following method: polyester diol, isocyanate and tetramethyl piperidine react for 2 hours at the temperature of 90 ℃, dimethylolpropionic acid, ethanol and a small amount of acetone are added, acetone and N-methyl pyrrolidone are added, the mixture is stirred for 0.5 hour at the temperature of 60 ℃, the-NCO content is measured to reach a specified value, ethylenediamine is added for neutralization until the pH value is 8-9, a toluene and water mixed solution obtained by condensation polymerization of silicon resin is dropwise added, the temperature is increased for azeotropic removal of a small molecular solvent and most of water under strong stirring, and activated carbon is added for decoloration and dehydration to obtain a silicon modified waterborne polyurethane resin adhesive solution.
4. The novel aluminum foil paper bonding process for cigarettes as claimed in claim 1, wherein the viscosity of the bonding layer obtained in S4 is 800 ± 50cmg, BU at 95 ℃.
5. The novel aluminum foil paper bonding process for cigarettes as claimed in claim 1, wherein the vacuum drying process in step S5 is as follows: spraying a drying agent on the surface of the lining base paper, uniformly smearing, heating by a hot plate at the bottom under a vacuum condition to 60 ℃, repeatedly rolling by a 100 ℃ hot roller along the transverse direction of the base paper to be uniformly dried.
6. The novel cigarette aluminum foil paper bonding process of claim 1, wherein the washing water obtained by washing the starch paste in the step S6 is returned to the step 4) for recycling through concentration to obtain 40% starch slurry.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114229228A (en) * | 2021-12-30 | 2022-03-25 | 滁州卷烟材料厂 | Novel aluminum foil paper for cigarette based on hot melt adhesive |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066413A (en) * | 1992-05-05 | 1992-11-25 | 李金钟 | Composite aluminium plastic (material) separates aluminium and plastic process and the equipment of reclaiming |
| CN105178107A (en) * | 2015-09-21 | 2015-12-23 | 滁州卷烟材料厂 | Cigarette aluminum-foil paper with anti-counterfeiting label |
| CN107415368A (en) * | 2017-04-10 | 2017-12-01 | 滁州卷烟材料厂 | A kind of easily separated recovery cigarette aluminium-foil paper |
| CN109177562A (en) * | 2018-09-18 | 2019-01-11 | 浙江银采天实业有限公司 | A kind of vacuum aluminium paper production method of recoverable basement membrane |
| CN110304344A (en) * | 2019-07-02 | 2019-10-08 | 田帅 | A kind of production technology of antibacterial environment protection anti-fake aluminium-foil paper |
| CN111621221A (en) * | 2020-06-02 | 2020-09-04 | 中山市博海精细化工有限公司 | Water-based release coating for improving aluminum plating transfer effect of OPP (oriented polypropylene) film and preparation method thereof |
-
2021
- 2021-12-30 CN CN202111642095.3A patent/CN114228304A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066413A (en) * | 1992-05-05 | 1992-11-25 | 李金钟 | Composite aluminium plastic (material) separates aluminium and plastic process and the equipment of reclaiming |
| CN105178107A (en) * | 2015-09-21 | 2015-12-23 | 滁州卷烟材料厂 | Cigarette aluminum-foil paper with anti-counterfeiting label |
| CN107415368A (en) * | 2017-04-10 | 2017-12-01 | 滁州卷烟材料厂 | A kind of easily separated recovery cigarette aluminium-foil paper |
| CN109177562A (en) * | 2018-09-18 | 2019-01-11 | 浙江银采天实业有限公司 | A kind of vacuum aluminium paper production method of recoverable basement membrane |
| CN110304344A (en) * | 2019-07-02 | 2019-10-08 | 田帅 | A kind of production technology of antibacterial environment protection anti-fake aluminium-foil paper |
| CN111621221A (en) * | 2020-06-02 | 2020-09-04 | 中山市博海精细化工有限公司 | Water-based release coating for improving aluminum plating transfer effect of OPP (oriented polypropylene) film and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 吴小峰;朱传方;张丽;万婷;: "二羟基硅油改性水性聚氨酯树脂的合成及性能", 应用化学, no. 09, 10 September 2007 (2007-09-10) * |
| 姜峻;姚伯龙;高旭瑞;王利魁;邓丽朵;: "一种新型UV固化超支化水性聚氨酯的合成及性能研究", 化工新型材料, no. 03, 15 March 2016 (2016-03-15) * |
| 李宁;熊晓莉;: "铝塑纸复合包装的分离研究", 包装工程, no. 12, 15 December 2008 (2008-12-15) * |
| 沈一丁;刘敬松;赖小娟;: "有机硅/丙烯酸酯改性水性聚氨酯的合成及性能", 精细化工, no. 10, 15 October 2009 (2009-10-15) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114229228A (en) * | 2021-12-30 | 2022-03-25 | 滁州卷烟材料厂 | Novel aluminum foil paper for cigarette based on hot melt adhesive |
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