CN112626913A - High resistant separates kraft paper complex film and composite equipment thereof - Google Patents
High resistant separates kraft paper complex film and composite equipment thereof Download PDFInfo
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- CN112626913A CN112626913A CN202011334944.4A CN202011334944A CN112626913A CN 112626913 A CN112626913 A CN 112626913A CN 202011334944 A CN202011334944 A CN 202011334944A CN 112626913 A CN112626913 A CN 112626913A
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- 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
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/82—Paper comprising more than one coating superposed
- D21H19/824—Paper comprising more than one coating superposed two superposed coatings, both being non-pigmented
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/22—Polyalkenes, e.g. polystyrene
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/56—Rolls
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to the technical field of kraft paper composite films and composite equipment thereof, and particularly discloses a high-barrier kraft paper composite film and composite equipment thereof, wherein the high-barrier kraft paper composite film comprises kraft paper, a barrier layer is arranged on the surface of the kraft paper, and a substrate film is arranged on the surface of the barrier layer; the barrier layer is made of PVA material, and the PVA material is uniformly coated on the surface of the kraft paper; the base material film is formed by mixing POE and PE, and the POE and the PE are uniformly mixed and coated on the surface of the barrier layer; corona is beaten on substrate membrane two sides, wherein the substrate membrane beat the corona one side with the barrier layer pastes mutually. According to the high-barrier kraft paper composite film provided by the invention, PVA is coated on the surface of kraft paper, and then a mixture base material of POE and PE is compounded, so that the increase of oxygen permeability of PVA caused by water absorption is reduced, the water resistance of PVA is improved, and the high barrier property of PVA is maintained; and is beneficial to enhancing the interface adhesion, so that the adhesive is not peeled off in the using process.
Description
Technical Field
The invention relates to the technical field of kraft paper composite films and composite equipment thereof, in particular to a high-barrier kraft paper composite film and composite equipment thereof.
Background
The kraft paper is widely applied to various packaging products, such as paper bags, handbag kraft paper, color boxes, gift box kraft paper, printing kraft paper, notebook kraft paper, homework kraft paper, special envelope kraft paper and the like.
The kraft paper has high tension, and has single light, double light, stripes, no stripes and the like. The paper is mainly used for packing paper, envelopes, paper bags and the like and cylinder linings of printing machines. However, since kraft paper is made of paper fibers, its own water-and gas-barrier properties are poor.
At present, a PE or PP material is generally coated on kraft paper so as to realize heat sealability, so that the next step of heat sealing bag making is facilitated, the operation is simple and convenient, the functions are complete, and the application in life is very wide. But is limited to PE and PP materials, has poor water and gas resistance, greatly limits the application of kraft paper, and is rarely applied at present particularly in the field of barrier property and requirements.
Aiming at the problems, the invention provides a high-barrier kraft paper composite film and composite equipment thereof.
Disclosure of Invention
Technical problem to be solved
The invention aims to solve the problem that the existing kraft paper is poor in barrier performance, the high-barrier kraft paper composite film is prepared by coating a high-barrier PVA material in the kraft paper and further compounding a low-temperature heat-sealing POE (polyolefin elastomer) and PE (polyethylene) mixed film, the water vapor and gas barrier properties of the kraft paper are improved, and the high-barrier kraft paper composite film can be produced in a large scale.
(II) technical scheme
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a high resistant separates kraft paper complex film, includes the kraft paper, the surface of kraft paper is equipped with the barrier layer, the surface of barrier layer is equipped with the substrate membrane.
The barrier layer is a PVA material, and the PVA material is evenly coated on the surface of the kraft paper.
The base material film is formed by mixing POE and PE, and the POE and the PE are uniformly mixed and coated on the surface of the barrier layer; the corona is beaten on substrate membrane two sides, the substrate membrane wherein beat the corona one side with the barrier layer pastes mutually, the substrate membrane wherein beat the another side of corona and be used for the printing.
The strength of the barrier property of the barrier layer is adjusted by controlling the weight per square gram of PVA coated; the tensile strength, surface hardness and heat sealing strength of the base material film can be adjusted by selecting the types and the proportion of POE and PE.
The invention also provides a composite device of the high-barrier kraft paper composite film, which can realize the production of the high-barrier kraft paper composite film mentioned in claim 1 and comprises a base, wherein the base is sequentially provided with a coating device, a cooling device, a film coating device and a curing device.
The laminating device comprises a laminating support, a first support, a second support and a third support are arranged on the laminating support, the first support is located close to one side of the cooling device, a pressing plate is arranged on the first support, a laminating assembly is arranged on the second support, a guide plate is symmetrically arranged on the third support, and the pressing plate is provided with the laminating assembly and a laminating receiving plate is arranged below the guide plate.
The film spraying assembly comprises a film spraying box arranged at the upper end of the second support, the upper end of the film spraying box is communicated with a first hose and a second hose, one end of the first hose, which extends into the film spraying box, is communicated with a first spraying pipe, and the lower end of the first spraying pipe is uniformly provided with first spraying ports; one end of the second hose extending into the film spraying box is communicated with a second spraying pipe, second spraying holes are uniformly distributed at the lower end of the second spraying pipe, and the first spraying pipe and the second spraying pipe are distributed in a staggered mode.
The first ejection pipe with evenly be equipped with the puddler between the second ejection pipe, the stirring fan is installed to the lower extreme of puddler, motor drive is passed through to the upper end of puddler.
Preferably, the middle of drenching the membrane case is equipped with the hot plate, the internally mounted of hot plate has the pre-heater, evenly be equipped with the perforation on the hot plate.
Preferably, a vibration sieve plate is movably arranged between the heating plate and the bottom end of the film spraying box, a vibrator is arranged in the vibration sieve plate, and two ends of the vibration sieve plate are connected with inserting plates; the inner wall of the membrane spraying box is symmetrically provided with sliding grooves, and the insertion plate is located in the sliding grooves and is in sliding connection with the sliding grooves.
Preferably, the bottom end of the film spraying box is provided with a through groove, the through groove penetrates through the bottom end of the film spraying box, a middle shaft is arranged in the through groove, a smearing roller is fixed on the middle shaft, the smearing roller is matched with the through groove, and the middle shaft is driven by a motor.
Preferably, the tail end that first hose stretches out the drenching membrane case outside is connected with the POE storage box, the tail end that the second hose stretches out the drenching membrane case outside is connected with the PE storage box.
Preferably, the coating device comprises a coating support, a coating bearing plate is fixed on the coating support, a coating box is installed in the middle of the coating support and above the coating bearing plate, a heater is arranged in the coating box, and a processed PVA material is placed in the coating box; the lower end surface of the coating box is uniformly provided with leak holes, and the lower end surface of the coating box is provided with a coating brush.
Preferably, the coating support is located one side symmetry of coating case is equipped with two branch clamp plates, the coating support is located the opposite side of coating case is fixed with main clamp plate, divide the clamp plate with the coating is accepted the gap between the board and is matchd with the kraft paper thickness before the coating, main clamp plate with the coating is accepted the gap between the board and is matchd with the kraft paper thickness after the coating.
Preferably, cooling device includes the cooling support, install the cooler bin on the cooling support, evenly install the fan in the cooler bin, the lower terminal surface of cooler bin evenly is equipped with the exhaust vent.
Preferably, one side of the coating device, which is far away from the cooling device, is provided with an original winding roller, a first transition roller is arranged between the coating device and the cooling device, a second transition roller is arranged between the cooling device and the film laminating device, a third transition roller is arranged between the film laminating device and the curing equipment, and one side of the curing device, which is far away from the film laminating device, is provided with a completed winding roller.
(III) advantageous effects
1. According to the high-barrier kraft paper composite film provided by the invention, PVA is coated on the surface of kraft paper, and then a mixture base material of POE and PE is compounded, so that the increase of oxygen permeability of PVA caused by water absorption is reduced, the water resistance of PVA is improved, and the high barrier property of PVA is maintained; and is beneficial to enhancing the interface adhesion, so that the adhesive is not peeled off in the using process.
2. According to the high-barrier kraft paper composite film compounding device, the coating device, the cooling device, the film spraying device and the curing device are arranged, PVA is coated on the surface of kraft paper through the coating device, and then the film spraying device is used for compounding the POE and PE mixed base material on the surface of the PVA, so that the whole process is high in mechanization degree, simple and convenient to operate, and convenient for large-scale production.
3. According to the high-barrier kraft paper composite film compounding equipment, the whole process is high in mechanization degree, the mechanisms for preventing kraft paper from deviating are arranged on the coating device and the film spraying device, so that the kraft paper can be effectively guaranteed to be compounded uniformly and completely in the compounding process, and the effect of finishing the kraft paper composite film is greatly improved to a certain extent.
Drawings
FIG. 1 is a schematic structural view of a high-barrier kraft composite film according to the present invention;
FIG. 2 is a schematic view of the overall structure of a composite apparatus of a high-barrier kraft composite film according to the present invention;
FIG. 3 is a schematic structural view of a coating apparatus of a composite apparatus of a high-barrier kraft composite film according to the present invention;
FIG. 4 is a schematic cross-sectional view of a laminating device of a composite apparatus of a high-barrier kraft composite film according to the present invention;
fig. 5 is a partially enlarged view of a portion a of fig. 4 according to the present invention.
Wherein: 1 kraft paper, 10 barrier layers, 100 substrate films, 2 bases, 3 coating devices, 31 coating supports, 32 coating receiving plates, 33 coating boxes, 34 coating brushes, 35 partial pressure plates, 36 main pressure plates, 4 cooling devices, 41 cooling supports, 42 cooling boxes, 5 laminating devices, 51 laminating supports, 52 first supports, 53 second supports, 54 third supports, 55 pressing plates, 56 laminating assemblies, 560 laminating boxes, 5600 sliding grooves, 561 first hoses, 5610POE storage boxes, 562 second hoses, 5620PE storage boxes, 563 first ejection pipes, 5630 first ejection outlets, 564 stirring rods, 5640 stirring fans, 565 heating plates, 565a preheaters, 565b perforations, vibrating sieve plates, 566a vibrator, 566b inserts, 567 through grooves, 568 central shafts, 569 coating rollers, 57 guide plates, 58 laminating receiving plates, 6 curing equipment, 7 original winding rollers, 71 second transition rollers, 72 second transition rollers, 73 a third transition roller, 8 completes the take-up roller.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1, the present invention provides the following technical solutions: a high-barrier kraft paper 1 composite film comprises kraft paper 1, wherein a barrier layer 10 is arranged on the surface of the kraft paper 1, and a substrate film 100 is arranged on the surface of the barrier layer 10.
The barrier layer 10 is made of PVA polyvinyl alcohol material, and the PVA polyvinyl alcohol material is uniformly coated on the surface of the kraft paper 1; the PVA polyvinyl alcohol material has excellent oxygen barrier property.
The base material film 100 is formed by mixing POE thermoplastic elastomer and PE polyethylene, and the POE thermoplastic elastomer and the PE polyethylene are uniformly mixed and coated on the surface of the barrier layer 10; the POE thermoplastic elastomer accounts for 25% of the mass ratio, the addition of the POE thermoplastic elastomer further increases the adhesion force value of the base material film 100 and the barrier layer 10, and the delamination between the base material film 100 and the barrier layer 10 is avoided; after PVA polyvinyl alcohol is coated, a base material film 100 formed by mixing POE thermoplastic elastomer and PE polyethylene is coated on the surface of the PVA polyvinyl alcohol, and the barrier layer 10 is wrapped in the base material film 100, so that the increase of the oxygen permeation rate of the barrier layer 10 caused by water absorption is reduced.
Corona is applied to two sides of the base material film 100, and one side of the base material film 100, which is applied with corona, is adhered to the barrier layer 10, so that high interlayer peeling force is realized; the other side of the substrate film 100, which is corona-charged, is used for printing; wherein, the corona treatment is used for coarsening and drying the surface of the base material film 100, and simultaneously, polar groups are introduced to increase the adhesive force between the base material film 100 and PVA polyvinyl alcohol, and within a certain range, the higher the voltage, the lower the treatment speed or the longer the treatment time, the better the surface performance of the base material film 100 is, and during the corona treatment, the softening deformation and even the thermal corrosion of the base material film 100 under the accumulated high temperature are avoided.
The strength of the barrier property of the barrier layer 10 is adjusted by controlling the weight per square gram of PVA coated with PVA; the tensile strength, surface hardness, and heat seal strength of the base film 100 are adjusted by selecting the kind and ratio of the POE thermoplastic elastomer and the PE polyethylene.
According to the high-barrier kraft paper 1 composite film provided by the invention, the base material film 100 formed by coating PVA polyvinyl alcohol on the kraft paper 1 and compounding the POE thermoplastic elastomer and the PE polyethylene is used for improving the barrier property of the PVAPVA polyvinyl alcohol, so that the barrier property of the PVA is protected, and the heat sealing property is achieved.
Referring to fig. 2-5, the present invention further provides a composite apparatus of a high-barrier kraft paper 1 composite film, which can realize the production of the high-barrier kraft paper 1 composite film as claimed in claim 1, and the composite apparatus includes a base 2, and the base 2 is sequentially provided with a coating device 3, a cooling device 4, a film coating device 5 and a curing apparatus 6, wherein the curing apparatus is a prior art and is not described herein again.
Referring to fig. 2, an original winding roller 7 is arranged on one side of the coating device 3, which is far away from the cooling device 4, a first transition roller 71 is arranged between the coating device 3 and the cooling device 4, a second transition roller 72 is arranged between the cooling device 4 and the film coating device 5, a third transition roller 73 is arranged between the film coating device 5 and the curing equipment 6, a completed winding roller 8 is arranged on one side of the curing device, which is far away from the film coating device 5, and the original winding roller 7, the first transition roller 71, the second transition roller 72, the third transition roller 73 and the completed winding roller 8 are all driven by a motor.
In the specific operation, the kraft paper 1 is wound and sleeved on the original winding roller 7, the kraft paper 1 sequentially passes through the coating device 3, the first transition roller 71, the cooling device 4, the second transition roller 72, the film coating device 5, the third transition roller 73 and the curing equipment 6, and the heavily processed kraft paper 1 is wound up by the finished winding roller 8.
Referring to fig. 3, the coating apparatus 3 includes a coating support 31, a coating receiving plate 32 is fixed on the coating support 31, a coating box 33 is installed in the middle of the coating support 31 above the coating receiving plate 32, a heater is installed in the coating box 33, and a processed PVA polyvinyl alcohol material is placed in the coating box 33; the lower end surface of the coating box 33 is uniformly provided with leak holes, and the lower end surface of the coating box 33 is provided with a coating brush 34; wherein the heater can ensure that PVA polyvinyl alcohol is in a liquid state convenient for smearing in the smearing box 33, the PVA polyvinyl alcohol flows out from the leak hole and is left on the smearing brush 34, and then the PVA polyvinyl alcohol is smeared by contacting with the kraft paper 1 passing through.
Two partial pressure plates 35 are symmetrically arranged on one side of the coating support 31, which is positioned on the coating box 33, the main pressure plate 36 is fixed on the other side of the coating support 31, which is positioned on the coating box 33, the gap between the partial pressure plates 35 and the coating bearing plate 32 is matched with the thickness of the kraft paper 1 before coating, and the gap between the main pressure plate 36 and the coating bearing plate 32 is matched with the thickness of the kraft paper 1 after coating; wherein the pressing plate 35 guarantees that the kraft paper 1 is in a flat state when contacting with the coating brush 34, and main pressing plate 36 guarantees that the kraft paper 1 after the coating can not take place the skew at the removal in-process, and this pressing plate can also scrape off the unnecessary PVA polyvinyl alcohol of coating on the kraft paper 1, avoids appearing PVA polyvinyl alcohol coating inhomogeneous phenomenon and takes place.
The cooling device 4 comprises a cooling support 41, a cooling box 42 is arranged on the cooling support 41, fans are uniformly arranged in the cooling box 42, and air outlet holes are uniformly formed in the lower end face of the cooling box 42.
During specific work, firstly, the kraft paper 1 is wound and sleeved on an original winding roller 7, the kraft paper 1 sequentially passes through the coating device 3, the first transition roller 71, the cooling device 4, the second transition roller 72, the film coating device 5, the third transition roller 73 and the curing device 6, and finally is connected with a completed winding roller 8, motors of the rollers are started, so that the original winding roller 7, the first transition roller 71, the second transition roller 72, the third transition roller 73 and the completed winding roller 8 rotate, the kraft paper 1 starts to move, the kraft paper 1 firstly passes through a space between the pressing plate 35 and the coating bearing plate 32, the pressing plate 35 ensures that the kraft paper 1 is in a flat state when contacting with the coating brush 34, and then the kraft paper 1 moves to a position below the coating brush 34, and thus PVA polyvinyl alcohol on the coating brush 34 is coated on the kraft paper 1.
The kraft paper 1 after passing through the coating brush 34 passes through a gap between the main pressing plate 36 and the coating bearing plate 32, the main pressing plate 36 ensures that the coated kraft paper 1 does not deviate in the moving process, and the pressing plate can also scrape off redundant PVA polyvinyl alcohol coated on the kraft paper 1, so that the phenomenon of uneven PVA polyvinyl alcohol coating is avoided; then, the kraft paper 1 passed through the coating device 3 passes through the first transition roll 71 and passes through the lower end of the cooling device 4 so that the PVA polyvinyl alcohol is cooled and formed.
Referring to fig. 4-5, the film coating device 5 includes a film coating support 51, the film coating support 51 is provided with a first support 52, a second support 53 and a third support 54, the first support 52 is located at a side close to the cooling device 4, the first support 52 is provided with a pressing plate 55, the second support 53 is provided with a film coating assembly 56, the third support 54 is symmetrically provided with a guide plate 57, and film coating receiving plates 58 are arranged below the pressing plate 55, the film coating assembly 56 and the guide plate 57; the gap between the pressing plate 55 and the laminating bearing plate 58 is matched with the thickness of the kraft paper 1 before laminating, and the distance between the guide plate 57 and the laminating bearing plate 58 is matched with the thickness of the kraft paper 1 after laminating; kraft paper 1 through cooling device 4 passes through second transition roller 72 again, enters into the gap between pressboard 55 and the laminating receiving plate 58 on the first support 52 along laminating receiving plate 58 earlier, guarantees that kraft paper 1 can not take place the phenomenon of uneven buckling before laminating subassembly 56, and kraft paper 1 after laminating is through the guide of guide board 57, guarantees that kraft paper 1 after laminating can not take place the skew when removing.
The membrane spraying assembly 56 comprises a membrane spraying box 560 which is arranged at the upper end of the second bracket 53, the upper end of the membrane spraying box 560 is communicated with a first hose 561 and a second hose 562, one end of the first hose 561, which extends into the membrane spraying box 560, is communicated with a first ejection pipe 563, and the lower end of the first ejection pipe 563 is uniformly distributed with first ejection holes 5630; one end of the second hose 562 extending into the shower membrane box 560 is communicated with a second ejection pipe, the lower end of the second ejection pipe is uniformly distributed with second ejection holes, and the first ejection pipe 563 and the second ejection pipe are distributed in a staggered manner.
The tail end of the first hose 561, which extends out of the drench membrane box 560, is connected with a POE thermoplastic elastomer storage box 5610, and the tail end of the second hose 562, which extends out of the drench membrane box 560, is connected with a PE polyethylene storage box 5620.
Wherein, the POE thermoplastic elastomer enters the interior of the lamination box 560 through the first hose 561, and is sprayed into the interior of the lamination box 560 through the first jet pipe 563 and the first jet port 5630, and the PE polyethylene enters the interior of the lamination box 560 through the second hose 562, and is sprayed into the interior of the lamination box 560 through the second jet pipe and the second jet port; first blowout pipe 563 and the crisscross distribution of second blowout pipe for POE thermoplastic elastomer also crisscross spraying when spraying with PE polyethylene, be favorable to blending each other between the two, and be equipped with the device of control flow on first hose 561 and the box bottom hose, the convenient ratio of controlling POE thermoplastic elastomer and PE polyethylene according to actual conditions.
A stirring rod 564 is uniformly arranged between the first jet pipe 563 and the second jet pipe, a stirring fan 5640 is mounted at the lower end of the stirring rod 564, the upper end of the stirring rod 564 is driven by a motor, and the stirring rod 564 and the stirring fan 5640 are uniformly distributed at appropriate positions in the laminating box 560.
The middle of drenching membrane case 560 is equipped with hot plate 565, and the internally mounted of hot plate 565 has preheater 565a, evenly is equipped with perforation 565b on the hot plate 565, and perforation 565b misses the position that preheater 565a is located, and preheater 565a is the controllable device of temperature, conveniently controls the temperature of heating for POE thermoplastic elastomer and PE polyethylene mix fully.
The POE thermoplastic elastomer and the PE polyethylene sprayed in the lamination box 560 are uniformly mixed by the cooperation of the stirring fan 5640 and the preheater 565 a.
A vibration sieve plate 566 is movably arranged between the heating plate 565 and the bottom end of the laminating box 560, a vibrator 566a is arranged in the vibration sieve plate 566, and two ends of the vibration sieve plate 566 are connected with inserting plates 566 b; the inner wall of the membrane coating box 560 is symmetrically provided with sliding grooves 5600, and the plugboard 566b is positioned in the sliding grooves 5600 and is in sliding connection with the sliding grooves 5600; the vibrator 566a vibrates the vibrating screen plate 566, wherein the inserting plate 566b and the sliding groove 5600 define a position where the vibrating screen plate 566 vibrates, and the agitated mixture of the POE thermoplastic elastomer and the PE polyethylene flows to the vibrating screen plate 566 through the perforation 565b, and further mixing of the mixture is performed to some extent by the vibration of the vibrating screen plate 566, and falls down from the screen plate into the bottom of the leaching tank 560.
A through groove 567 is formed in the bottom end of the laminating box 560, the through groove 567 penetrates through the bottom end of the laminating box 560, a middle shaft 568 is arranged in the through groove 567, an applying roller 569 is fixed on the middle shaft 568, the applying roller 569 is matched with the through groove 567, and the middle shaft 568 is driven by a motor; the bottom end of the laminating box 560 is brought by the mixture of POE thermoplastic elastomer and PE polyethylene and is coated on kraft paper 1 by a coating roll 569.
In specific during operation, kraft paper 1 after cooling setting through cooling device 4 comes to drench membrane device 5 below through second transition roller 72, drenches the membrane to kraft paper 1 of scribbling PVA polyvinyl alcohol through the roller 569 of scribbling of drenching membrane device 5 bottom, after the coating PVA polyvinyl alcohol, drench the mixture of membrane one deck POE thermoplastic elastomer and PE polyethylene again on PVA polyvinyl alcohol surface, be favorable to reducing PVA and increase because of the oxygen permeability rate that absorbs water and lead to.
According to the high-barrier kraft paper 1 composite film provided by the scheme of the invention, PVA (polyvinyl alcohol) is coated on the surface of kraft paper 1, and then a mixed base material of POE (polyolefin elastomer) thermoplastic elastomer and PE (polyethylene) is compounded, so that the increase of oxygen permeability of the PVA polyvinyl alcohol due to water absorption is reduced, the water resistance of the PVA polyvinyl alcohol is improved, and the high barrier property of the PVA polyvinyl alcohol is kept; and is beneficial to enhancing the interface adhesion, so that the adhesive is not peeled off in the using process.
According to the composite equipment of the high-barrier kraft paper 1 composite film, which is provided by the scheme of the invention, the coating device 3, the cooling device 4, the film spraying device 5 and the curing equipment 6 are arranged, PVA polyvinyl alcohol is coated on the surface of kraft paper 1 through the coating device 3, and then the film spraying device 5 is utilized to compound the POE thermoplastic elastomer and PE polyethylene mixture base material on the surface of the PVA polyvinyl alcohol, so that the whole process is high in mechanization degree, simple and convenient to operate and convenient for large-scale production.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (10)
1. The utility model provides a high resistant separates kraft paper complex film, includes kraft paper (1), its characterized in that: the surface of the kraft paper (1) is provided with a barrier layer (10), and the surface of the barrier layer (10) is provided with a substrate film (100);
the barrier layer (10) is made of PVA (polyvinyl alcohol) material, and the PVA material is uniformly coated on the surface of the kraft paper (1);
the base material film (100) is formed by mixing POE and PE, and the POE and the PE are uniformly mixed and coated on the surface of the barrier layer (10); corona is applied to two sides of the substrate film (100), one side of the substrate film (100) where the corona is applied is adhered to the barrier layer (10), and the other side of the substrate film (100) where the corona is applied is used for printing;
the strength of the barrier property of the barrier layer (10) is adjusted by controlling the weight per square gram of PVA coated; the tensile strength, surface hardness and heat seal strength of the base material film (100) are adjusted by selecting the types and the proportions of POE and PE.
2. A composite device of a high-barrier kraft composite film, which can realize the production of the high-barrier kraft composite film mentioned in claim 1, characterized in that: the coating device comprises a base (2), wherein a coating device (3), a cooling device (4), a film coating device (5) and curing equipment (6) are sequentially arranged on the base (2);
the film laminating device (5) comprises a film laminating support (51), a first support (52), a second support (53) and a third support (54) are arranged on the film laminating support (51), the first support (52) is positioned at one side close to the cooling device (4), a pressing plate (55) is arranged on the first support (52), a film laminating component (56) is arranged on the second support (53), guide plates (57) are symmetrically arranged on the third support (54), and film laminating bearing plates (58) are arranged below the pressing plate (55), the film laminating component (56) and the guide plates (57);
the film spraying assembly (56) comprises a film spraying box (560) placed at the upper end of the second support (53), the upper end of the film spraying box (560) is communicated with a first hose (561) and a second hose (562), one end, extending into the film spraying box (560), of the first hose (561) is communicated with a first ejection pipe (563), and the lower end of the first ejection pipe (563) is uniformly provided with first ejection holes (5630); one end of the second hose (562) extending into the laminating box (560) is communicated with a second ejection pipe, second ejection holes are uniformly distributed at the lower end of the second ejection pipe, and the first ejection pipe (563) and the second ejection pipe are distributed in a staggered manner;
a stirring rod (564) is uniformly arranged between the first ejection pipe (563) and the second ejection pipe, a stirring fan (5640) is installed at the lower end of the stirring rod (564), and the upper end of the stirring rod (564) is driven by a motor.
3. The high-barrier kraft composite film compounding device according to claim 2, wherein: the middle of drenching membrane case (560) is equipped with hot plate (565), the internally mounted of hot plate (565) has pre-heater (565a), evenly be equipped with perforation (565b) on hot plate (565).
4. The high-barrier kraft composite film compounding device according to claim 3, wherein: a vibrating screen plate (566) is movably arranged between the heating plate (565) and the bottom end of the membrane spraying box (560), a vibrator (566a) is arranged in the vibrating screen plate (566), and two ends of the vibrating screen plate (566) are connected with inserting plates (566 b); the inner wall of the membrane spraying box (560) is symmetrically provided with sliding grooves (5600), and the inserting plate (566b) is positioned in the sliding groove (5600) and is in sliding connection with the sliding groove (5600).
5. The high-barrier kraft composite film compounding device according to claim 4, wherein: the bottom end of the film spraying box (560) is provided with a through groove (567), the through groove (567) penetrates through the bottom end of the film spraying box (560), a middle shaft (568) is arranged in the through groove (567), a smearing roller (569) is fixed on the middle shaft (568), the smearing roller (569) is matched with the through groove (567), and the middle shaft (568) is driven by a motor.
6. The high-barrier kraft paper composite film compounding device according to claim 5, wherein: the tail end of the first hose (561), extending out of the drench membrane box (560), is connected with a POE storage box (5610), and the tail end of the second hose (562), extending out of the drench membrane box (560), is connected with a PE storage box (5620).
7. The high-barrier kraft composite film compounding device according to claim 2, wherein: the coating device (3) comprises a coating support (31), a coating bearing plate (32) is fixed on the coating support (31), a coating box (33) is installed in the middle of the coating support (31) and above the coating bearing plate (32), a heater is arranged in the coating box (33), and a processed PVA material is placed in the coating box (33); the lower end face of the coating box (33) is uniformly provided with leak holes, and the lower end face of the coating box (33) is provided with a coating brush (34).
8. The high-barrier kraft composite film compounding apparatus according to claim 7, wherein: coating support (31) are located one side symmetry of coating case (33) is equipped with two branch clamp plates (35), coating support (31) are located the opposite side of coating case (33) is fixed with main clamp plate (36), divide clamp plate (35) with the coating is accepted gap between board (32) and is scribbled preceding kraft paper (1) thickness phase-match, main clamp plate (36) with the coating is accepted gap between board (32) and is scribbled back kraft paper (1) thickness phase-match.
9. The high-barrier kraft composite film compounding device according to claim 2, wherein: cooling device (4) are including cooling support (41), install cooler bin (42) on cooling support (41), evenly install the fan in cooler bin (42), the lower terminal surface of cooler bin (42) evenly is equipped with the exhaust vent.
10. The high-barrier kraft composite film compounding device according to claim 2, wherein: coating device (3) are kept away from one side of cooling device (4) is equipped with former furling roller (7), coating device (3) with be equipped with first transition roller (71) between cooling device (4), cooling device (4) with be equipped with second transition roller (72) between drenching membrane device (5), drench membrane device (5) with be equipped with third transition roller (73) between curing equipment (6), the curing device is kept away from one side of drenching membrane device (5) is equipped with and accomplishes furling roller (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011334944.4A CN112626913A (en) | 2020-11-24 | 2020-11-24 | High resistant separates kraft paper complex film and composite equipment thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011334944.4A CN112626913A (en) | 2020-11-24 | 2020-11-24 | High resistant separates kraft paper complex film and composite equipment thereof |
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| Publication Number | Publication Date |
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| CN112626913A true CN112626913A (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011334944.4A Pending CN112626913A (en) | 2020-11-24 | 2020-11-24 | High resistant separates kraft paper complex film and composite equipment thereof |
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| Country | Link |
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| CN (1) | CN112626913A (en) |
Cited By (1)
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Application publication date: 20210409 |