CN114290757A - Processing technology of aluminum plastic packaging bag - Google Patents
Processing technology of aluminum plastic packaging bag Download PDFInfo
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- CN114290757A CN114290757A CN202111467350.5A CN202111467350A CN114290757A CN 114290757 A CN114290757 A CN 114290757A CN 202111467350 A CN202111467350 A CN 202111467350A CN 114290757 A CN114290757 A CN 114290757A
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Abstract
The invention relates to the technical field of aluminum-plastic food packaging bags, in particular to a processing technology of an aluminum-plastic packaging bag, which comprises the steps of taking a boiled PE film as a base layer, taking a VMPET aluminum-plated film as a coating layer, and compounding a transition layer made of a thermally induced shape memory polymer film between the coating layer and the base layer through an aluminum-plated film composite adhesive; the existing aluminum-plastic food packaging bag is easy to fold and break at the tear opening; therefore, the curled edge can curl and protect the tearing opening of the aluminum-plastic food packaging bag through the arrangement of the curled edge, so that the phenomenon that the tearing opening of the aluminum-plastic food packaging bag is folded and broken before the aluminum-plastic food packaging bag is used is avoided, food deterioration caused by damage of the aluminum-plastic food packaging bag is prevented, the safety of food quality is improved, and the arrangement of the curled edge enables no sharp corner at the edge of a product to be generated, so that the problem that the palm is pricked due to improper use is avoided, the use safety of the food packaging bag is improved, and the practicability of the food packaging bag is improved.
Description
Technical Field
The invention relates to the technical field of aluminum-plastic food packaging bags, in particular to a processing technology of an aluminum-plastic packaging bag.
Background
The aluminum-plastic bag is a packaging product integrating various packaging advantages, and has the advantages of low cost and exquisite printing; the product has: antistatic, anti ultraviolet, dampproofing, separate oxygen shading, cold-resistant high temperature resistant, characteristics such as fresh-keeping, separate oxygen easy seal nature strong are applied to each field such as industrial packaging, daily use chemicals packing, food package, medicine, health, electron, space flight, science and technology, military project, can divide into according to the material structure: the aluminum-plated composite bag is a common aluminum-plated food packaging bag for food packaging, and can be divided into the following steps: the two-layer compounding comprises the steps of firstly printing a coating film (VMPET aluminized film or VMCPP aluminized film), then compounding an inner film, namely a PE film serving as a base layer, and the coating film through an laminating machine, and the three-layer compounding and the four-layer compounding comprise adding films made of opp, pet and other materials between the PE film and the VMPET aluminized film.
In the prior art, when the aluminum-plastic cooking package food is used, the tearing opening of the aluminum-plastic food package bag is too large due to the lack of flexibility of the aluminum-plastic food package bag, the tearing strength at the tearing opening position is low, so that the tearing opening of the aluminum-plastic food package bag is easy to fold and break, and when the tearing opening of the used aluminum-plastic food package bag is too small, the problem that the tearing opening is inconvenient to tear is easily caused.
For example, a chinese patent with application No. CN201410344887.6 discloses a scratch-resistant vacuum heat-insulating aluminum plastic film packaging bag and a method for manufacturing the same, so that the scratch-resistant vacuum heat-insulating aluminum plastic film packaging bag of the present invention is sequentially provided with a PE film, an aluminum foil, an aluminum-plated PET film, and a nylon film from inside to outside, thereby making the packaging bag have strong puncture resistance, scratch resistance, and sealing performance, isolating heat, water vapor, and shielding infrared rays and electromagnetic waves; therefore, the processing technology of the aluminum-plastic packaging bag is improved, so that the problem in the aluminum-plastic food packaging bag is solved.
In view of the above, the invention provides a processing technology of an aluminum plastic packaging bag, which solves the technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a processing technology of an aluminum-plastic packaging bag, the curled edge can curl and protect the tearing opening of the aluminum-plastic food packaging bag through the arrangement of the curled edge, the phenomenon that the tearing opening of the aluminum-plastic food packaging bag is folded and broken before the aluminum-plastic food packaging bag is used is avoided, the food deterioration caused by the damage of the aluminum-plastic food packaging bag is prevented, the safety of the food quality is improved, the arrangement of the curled edge also enables no sharp corner at the edge of a product, and the problem that the palm is pricked due to improper use is avoided, so that the use safety of the aluminum-plastic packaging bag is improved, and the practicability of the aluminum-plastic packaging bag is further improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the processing technology of the aluminum plastic packaging bag comprises the following steps:
s1: taking a boiled PE film as a base layer, uniformly coating glue on one surface of the base layer, sticking a thermal induction type shape memory polymer film as a transition layer on one surface of the base layer coated with the glue, taking a VMPET aluminized film as a coating layer, wherein the thickness of the coating layer is 1.5-2 times of that of the base layer, performing composite sticking on the thermal induction type shape memory polymer film and the VMPET aluminized film through aluminized film composite glue, putting the composite aluminum-plastic packaging film into an oven, controlling the temperature of the oven to be 75-90 ℃, and baking for 13-15 hours to obtain the required aluminum-plastic packaging film;
s2: cutting the compounded aluminum-plastic packaging film into rectangular sheets with the length of 7-8cm and circular sheets with the circumference of 23-25cm, selecting two rectangular sheets of the cut aluminum-plastic packaging film, enabling base layers of the rectangular sheets to face to each other, gluing one sides of the two rectangular sheets through aluminized film composite glue, wherein the gluing length is 0.5-1cm, placing the glued rectangular sheets between two composite rollers of a compounding machine, controlling the temperature of the composite rollers to be 85-95 ℃, and compounding to obtain the herringbone aluminum-plastic packaging film composite material;
s3: according to the compounding principle of S2, placing two herringbone aluminum-plastic packaging film composite materials in parallel to enable the base layers to face opposite, adhering the short edges of the herringbone aluminum-plastic packaging film composite materials through aluminized film composite glue, wherein the adhering length is 1cm, and placing the two adhered herringbone aluminum-plastic packaging films between two compounding rollers of a compounding machine for rolling compounding to obtain an aluminum-plastic packaging film cylinder;
s4: the base layer of the circular sheet faces the inside of an aluminum-plastic packaging film cylinder, 1cm of aluminized film composite glue is coated at the edge of the base layer of the circular sheet, the circular sheet and the short sides at the two ends of the aluminum-plastic packaging film cylinder are adhered to form the bottom end of the aluminum-plastic packaging film cylinder, the edge of the bottom end of the aluminum-plastic packaging film cylinder is curled to form a curled edge, the curled edge is adhered and fixed through the aluminized film composite glue, the adhered circular sheet is folded and placed between two composite rollers of a compound machine for rolling and compounding to obtain the required aluminum-plastic food packaging bag;
s5: and finally, wrapping the gluing compound part of the film cylinder of the aluminum-plastic food packaging bag by a boiled PE film strip, and gluing and sealing edges by using an aluminum-plated film compound glue.
Preferably, the curled edges in S4 contact each other.
Preferably, the number of the curled edges in S4 is at least three.
Preferably, the thin film of the transition layer used in S1 is made of a thermally induced shape memory polymer material, and the thickness of the transition layer is consistent with that of the base layer.
Preferably, in S5, after the tear opening is opened by a tapping machine, a tear mark connected with the tear opening is marked and processed by a manual machine.
Preferably, for the aluminum-plastic food packaging bag filled with the solid, the tearing mark connected with the tearing opening is processed by manual mechanical marking to be an inward concave shape.
Preferably, for the aluminum-plastic food packaging bag filled with the fluid fast food, the tearing mark connected with the tearing opening is processed into an outward concave shape by manual mechanical marking.
Preferably, the number of the curled edges of the aluminum-plastic food packaging bag is three; in S1, the metal wire is adhered and fixed between the base layer and the transition layer through the aluminized film composite adhesive; the distance between every two adjacent metal wires is 7cm, and when S2 is cut along the parallel direction of the metal wires, the cutting is carried out at the position of 1.25cm at the upper ends of the metal wires; after cutting, an upper tear mark and a lower tear mark which are parallel to the metal wire are processed by manual mechanical marking, and the tear marks and the metal wire are gathered by 0.25 cm.
Preferably, the number of the curled edges of the aluminum-plastic food packaging bag is not less than four; in S1, the metal wire is adhered and fixed between the base layer and the transition layer through the aluminized film composite adhesive; the distance between two adjacent metal wires is 14cm, when cutting is carried out in S2 along the parallel direction of the metal wires, 7cm is cut in an equivalent manner, and the cutting position is 1.25cm at the upper end of the metal wires; two adjacent rectangular sheets with metal wires are made into herringbone aluminum-plastic packaging film combinations, two rectangular sheets without metal wires are made into the herringbone aluminum-plastic packaging film combinations, the two herringbone aluminum-plastic packaging film combinations with the metal wires and without the metal wires are subjected to adhesive compounding in S3, the curled edges with the two metal wires are provided with tearing openings through an opening machine in S5, and the curled edges with one metal wire are marked and processed into tearing marks through an artificial machine.
Preferably, the inner space of the aluminum-plastic packaging bag in the step S2 is cylindrical; the aluminum-plastic food packaging bag is vertically placed in the transportation process; the aluminum-plastic packaging bag is transversely placed in the household use process.
The invention has the following beneficial effects:
1. the curled edge can be used for curling and protecting the tearing opening of the aluminum-plastic food packaging bag, so that the phenomenon that the tearing opening of the aluminum-plastic food packaging bag is folded and broken before the aluminum-plastic food packaging bag is used is avoided, food deterioration caused by damage of the aluminum-plastic food packaging bag is prevented, the safety of food quality is improved, and the curled edge does not have sharp corners at the edge of a product, so that the problem that the palm is pricked due to improper use is avoided, the use safety of the food packaging bag is improved, and the practicability of the food packaging bag is improved.
2. According to the invention, through the arrangement of the metal wire, a user can tear the metal wire along the tear mark to open the bottom layer of the aluminum-plastic food packaging bag, so that another eating mode is provided for the user, the user can conveniently eat fast food in the aluminum-plastic food packaging bag in a handheld environment, and the application range of the invention is further improved.
Drawings
The invention is further described with reference to the following figures and embodiments.
FIG. 1 is a flow chart of the processing technique of the plastic-aluminum packaging bag of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in figure 1, the processing technology of the aluminum plastic packaging bag comprises the following steps:
s1: taking a boiled PE film as a base layer, uniformly coating glue on one surface of the base layer, sticking a thermal induction type shape memory polymer film as a transition layer on one surface of the base layer coated with the glue, taking a VMPET aluminized film as a coating layer, wherein the thickness of the coating layer is 1.5-2 times of that of the base layer, performing composite sticking on the thermal induction type shape memory polymer film and the VMPET aluminized film through aluminized film composite glue, putting the composite aluminum-plastic packaging film into an oven, controlling the temperature of the oven to be 75-90 ℃, and baking for 13-15 hours to obtain the required aluminum-plastic packaging film;
s2: cutting the compounded aluminum-plastic packaging film into rectangular sheets with the length of 7-8cm and circular sheets with the circumference of 23-25cm, selecting two rectangular sheets of the cut aluminum-plastic packaging film, enabling base layers of the rectangular sheets to face to each other, gluing one sides of the two rectangular sheets through aluminized film composite glue, wherein the gluing length is 0.5-1cm, placing the glued rectangular sheets between two composite rollers of a compounding machine, controlling the temperature of the composite rollers to be 85-95 ℃, and compounding to obtain the herringbone aluminum-plastic packaging film composite material;
s3: according to the compounding principle of S2, placing two herringbone aluminum-plastic packaging film composite materials in parallel to enable the base layers to face opposite, adhering the short edges of the herringbone aluminum-plastic packaging film composite materials through aluminized film composite glue, wherein the adhering length is 1cm, and placing the two adhered herringbone aluminum-plastic packaging films between two compounding rollers of a compounding machine for rolling compounding to obtain an aluminum-plastic packaging film cylinder;
s4: the base layer of the circular sheet faces the inside of an aluminum-plastic packaging film cylinder, 1cm of aluminized film composite glue is coated at the edge of the base layer of the circular sheet, the circular sheet and the short sides at the two ends of the aluminum-plastic packaging film cylinder are adhered to form the bottom end of the aluminum-plastic packaging film cylinder, the edge of the bottom end of the aluminum-plastic packaging film cylinder is curled to form a curled edge, the curled edge is adhered and fixed through the aluminized film composite glue, the adhered circular sheet is folded and placed between two composite rollers of a compound machine for rolling and compounding to obtain the required aluminum-plastic food packaging bag;
s5: loading a product to be packaged into an aluminum-plastic food packaging bag, carrying out heat seal sealing by using a heat sealing machine, then opening a tearing opening at a position of the sealing, which is close to the gluing compound position of a film cylinder of the aluminum-plastic food packaging bag, through an opening machine, finally wrapping the gluing compound position of the film cylinder of the aluminum-plastic food packaging bag by using a boiled PE film strip, and using an aluminum-plated film compound glue for gluing and sealing edges;
in the prior art, when the aluminum-plastic food package bag is used for packaging food by stewing, the tearing strength of the tearing position is low when the tearing opening of the aluminum-plastic food package bag is too large due to the lack of flexibility of the aluminum-plastic food package bag, so that the tearing opening of the aluminum-plastic food package bag is easy to fold and break;
when in use, the invention enables the tearing opening of the aluminum-plastic food packaging bag to be rolled into the curled edge in the process of curling the edge of the aluminum-plastic food packaging bag through the arrangement of the curled edge, thereby leading the tearing opening of the aluminum-plastic food packaging bag to be wrapped and protected by the normal edge of the outer layer, leading the tearing opening position to be bent, ensuring that the tearing opening position is not easy to be folded when the tearing opening is too large, thereby avoiding the fracture of the tearing opening, ensuring the completeness of the tearing opening, improving the packaging and sealing effect of the aluminum-plastic food packaging bag, and because of the arrangement of the curled edges, sharp corners do not exist at the edges of the product, thereby not only avoiding the situation that adults hold the product by hands, has the feeling of hurting hands, also prevents the problem that children are hurted when playing to cause the cutting of hands at the edge of the product, therefore, the safety of the product is improved, the application range of the invention is enlarged, and the practicability of the invention is improved;
the curled edge can be used for curling and protecting the tearing opening of the aluminum-plastic food packaging bag, so that the phenomenon that the tearing opening of the aluminum-plastic food packaging bag is folded and broken before the aluminum-plastic food packaging bag is used is avoided, food deterioration caused by damage of the aluminum-plastic food packaging bag is prevented, the safety of food quality is improved, and the curled edge does not have sharp corners at the edge of a product, so that the problem that the palm is pricked due to improper use is avoided, the use safety of the food packaging bag is improved, and the practicability of the food packaging bag is improved.
In an embodiment of the present invention, the curled edges in S4 contact each other; when the novel aluminum-plastic food packaging bag is used, the curled edges can have a supporting effect in the vertical direction through the arrangement of the curled edges, so that the structural strength of the aluminum-plastic food packaging bag is improved, the curled edges are curled in a close contact manner, the strength of the curled edges is effectively improved, the structural strength of the aluminum-plastic food packaging bag is effectively improved, the tearing position of the aluminum-plastic food packaging bag can be curled in the curled edges in a close contact manner, the gap between the tearing opening and the curled edges close to the tearing opening is reduced, dust entering the gap between the curled edges is reduced, the dust accumulation amount of the tearing opening and the tearing track is reduced, the sanitation of the tearing opening is ensured, the use sanitation of the aluminum-plastic food packaging bag is improved, and the practicability of the novel aluminum-plastic food packaging bag is improved.
In an embodiment of the present invention, the number of the curled edges in S4 is at least three; when the fast food packaging bag is used, the aluminum-plastic food packaging bag packaged with the fast food fluid product has an irregular shape, and is easy to extrude and damage when stacked and stored, so that the three curled edges are arranged to be used as supporting points when the aluminum-plastic food packaging bag is vertically placed, so that the aluminum-plastic food packaging bag can be stably and vertically placed, extrusion damage caused by stacking of the aluminum-plastic food packaging bag is avoided, and the practicability of the fast food packaging bag is effectively improved.
As an embodiment of the present invention, the thin film of the transition layer used in S1 is made of a thermally induced shape memory polymer material, and the thicknesses of the transition layer and the base layer are the same; when in use, when the aluminum-plastic food packaging bag packaged with the fluid fast food product is steamed and eaten, the fluid in the aluminum-plastic food packaging bag is boiled due to the steaming, so that the aluminum-plastic food packaging bag is over-expanded and cracked to cause the fluid in the aluminum-plastic food packaging bag to flow out, thereby affecting normal eating, therefore, when the aluminum-plastic food packaging bag is steamed and boiled again by arranging the transition layer as the thermal induction type shape memory polymer material, the transition layer film made of the thermal induction type shape memory polymer material is heated and stretched to recover, and then make the crimp limit extend, the inner space of the aluminum-plastic food wrapping bag will increase because of extension of the crimp limit at this moment, avoid the aluminum-plastic food wrapping bag from expanding too much and breaking, guarantee the aluminum-plastic food wrapping bag packed with fluid fast food can carry on the normal cooking and eat, make the practicability of the invention improve.
In an embodiment of the present invention, in S5, after the tear opening is opened by the opening machine, a tear mark connected to the tear opening is marked and processed by a manual machine; when the fast food packaging bag is used, the tearing directions are different due to the fact that tearing is too fast, when the tearing opening is too large, the fast food packaging bag packaged with the fast food product containing the fluid is torn, the fast food containing the fluid flows out of the fast food packaging bag containing the fluid, if the tearing opening is too small, the fast food packaging bag containing the solid food can not be conveniently taken out, and the tearing opening is torn by setting the tearing mark after the curled edge is opened, the tearing track can tear the fast food packaging bag along the tearing mark, so that the problem that fast food inside the fast food packaging bag is inconvenient to eat due to the fact that the tearing opening is too large or too small is avoided, and the practicability of the fast food packaging bag containing the liquid is improved.
As an implementation mode of the invention, for the aluminum-plastic food packaging bag filled with the solid, the tearing mark connected with the tearing opening is processed into an inward concave shape by manual mechanical marking; when the instant solid food packaging bag is used, the curled edge is stretched to expose the tearing opening, the tearing opening is torn inwards along the concave tearing mark by tearing the tearing opening, so that the instant solid food is exposed out of the tearing opening of the aluminum-plastic food packaging bag, the instant solid food in the aluminum-plastic food packaging bag can be directly eaten conveniently, and the instant solid food can be taken out of the aluminum-plastic food packaging bag conveniently, and therefore the practicability of the instant solid food packaging bag is effectively improved.
As an implementation mode of the invention, for the aluminum-plastic food packaging bag filled with the fluid fast food, the tearing mark connected with the tearing opening is processed into an outward concave shape by manual mechanical marking; when the fluid fast food packaging bag is used, the curled edge is stretched, the internal volume of the fluid fast food packaging bag is increased, the tearing opening is exposed and torn, the tearing opening is torn outwards along the concave tearing mark, the tearing position of the aluminum-plastic food packaging bag and the sticking position close to the curled edge are enabled, the aluminum-plastic food packaging bag which is torn and dropped along the tearing mark is enabled to be the sticky curled edge, the diameter of the tearing opening is small, the fluid fast food does not overflow the tearing opening, the fluid fast food is prevented from spilling, and the practical application effect of the fluid fast food packaging bag is improved.
As an embodiment of the present invention, the number of the curled edges of the aluminum-plastic food packaging bag is three; in S1, the metal wire is adhered and fixed between the base layer and the transition layer through the aluminized film composite adhesive; the distance between every two adjacent metal wires is 7cm, and when S2 is cut along the parallel direction of the metal wires, the cutting is carried out at the position of 1.25cm at the upper ends of the metal wires; after cutting, marking and processing an upper tear mark and a lower tear mark parallel to the metal wire through a manual machine, wherein the tear marks are 0.25cm away from the metal wire; when the instant food packaging bag is used, when no environment capable of transversely placing the aluminum-plastic food packaging bag exists around a user and the user can only eat the food by holding the food by hand, the curled edge of the aluminum-plastic food packaging bag is stretched, then the bottom layer of the aluminum-plastic food packaging bag is held upwards, and the metal wire is pulled outwards in a surrounding manner to drive the aluminum-plastic food packaging bag adhered to the metal wire to tear along the tear mark, so that the bottom layer of the aluminum-plastic food packaging bag is opened, thereby providing another eating mode for the user, facilitating the user to eat the instant food in the aluminum-plastic food packaging bag in the environment only capable of holding the food by hand, further improving the use range of the instant food packaging bag, and effectively improving the practicability of the instant food packaging bag; according to the invention, through the arrangement of the metal wire, a user can tear the metal wire along the tear mark to open the bottom layer of the aluminum-plastic food packaging bag, so that another eating mode is provided for the user, the user can conveniently eat fast food in the aluminum-plastic food packaging bag in a handheld environment, and the application range of the invention is further improved.
As an embodiment of the invention, the number of the curled edges of the aluminum-plastic food packaging bag is not less than four; in S1, the metal wire is adhered and fixed between the base layer and the transition layer through the aluminized film composite adhesive; the distance between two adjacent metal wires is 14cm, when cutting is carried out in S2 along the parallel direction of the metal wires, 7cm is cut in an equivalent manner, and the cutting position is 1.25cm at the upper end of the metal wires; making two adjacent rectangular sheets with metal wires into herringbone aluminum-plastic packaging film combinations, making two rectangular sheets without metal wires into the herringbone aluminum-plastic packaging film combinations, performing adhesive compounding on the two herringbone aluminum-plastic packaging film combinations with the metal wires and without the metal wires in S3, opening a tearing opening on a curled edge with two metal wires in S5 through an opening machine, and marking the curled edge with one metal wire into a tearing mark through an artificial machine; when the fast food packaging film is used, the curved edge is stretched, the tearing opening is torn along the tearing mark, when the other end of the curved edge is torn, the two metal wires are exposed, the metal wires are pulled to be torn around the side where the metal wires are located at the moment, and when the adjacent curved edge is torn, the metal wires are continuously pulled and torn along the curved edge, so that the aluminum-plastic packaging film between the two curved edges is opened, a user can conveniently take the fast food out completely, and the fast food is convenient to eat; the practicability of the invention is further improved.
As an embodiment of the present invention, the inner space of the plastic-aluminum food packaging bag in S2 is cylindrical; the aluminum-plastic food packaging bag is vertically placed in the transportation process; the aluminum-plastic food packaging bag is transversely placed in the household use process; when the instant food packaging bag is used, when the instant food packaging bag needs to be transported, the aluminum-plastic food packaging bag is vertically transported, the curled edges of the aluminum-plastic food packaging bag are vertically placed and support the aluminum-plastic food packaging bag, the aluminum-plastic food packaging bag with the cylindrical inner space saves more materials than other shapes, and all cylindrical parts are stressed evenly, so that the pressure intensity applied to the inside of the aluminum-plastic food packaging bag at different temperatures is the same, and the aluminum-plastic food packaging bag is not easy to deform, the vertical supporting effect of the curled edges is humidified, the aluminum-plastic food packaging bag is vertically placed and transported more stably, the aluminum-plastic food packaging bag is horizontally placed in a household, the curled edges with tearing openings of the aluminum-plastic food packaging bag face downwards, the tearing marks between the curled edges face downwards, and dust can be prevented from being accumulated at the tearing marks between the curled edges, dust is torn by placing the tearing marks and falls into the aluminum-plastic food packaging bag, so that the food sanitation is improved, and the practicability of the aluminum-plastic food packaging bag is further improved.
The specific working process is as follows:
the invention enables the tearing opening of the aluminum-plastic food packaging bag to be rolled into the curled edge in the process of curling the edge of the aluminum-plastic food packaging bag through the arrangement of the curled edge, thereby leading the tearing opening of the aluminum-plastic food packaging bag to be wrapped and protected by the normal edge of the outer layer, leading the tearing opening position to be bent, ensuring that the tearing opening position is not easy to be folded when the tearing opening is too large, thereby avoiding the fracture of the tearing opening, ensuring the completeness of the tearing opening, improving the packaging and sealing effect of the aluminum-plastic food packaging bag, and because of the arrangement of the curled edges, sharp corners do not exist at the edges of the product, thereby not only avoiding the situation that adults hold the product by hands, has the feeling of hurting hands, also prevents the problem that children are hurted when playing to cause the cutting of hands at the edge of the product, therefore, the safety of the product is improved, the application range of the invention is enlarged, and the practicability of the invention is improved; through the setting on curled limit, make curled limit can have supporting role in vertical direction, thereby make the structural strength of plastic-aluminum food packaging bag obtain improving, and set up to the in close contact with curling through curling limit, not only make the intensity on curled limit effectively improve, make the structural strength of plastic-aluminum food packaging bag effectively improve, still make the tear mouth position of plastic-aluminum food packaging bag can the in close contact with curl in curled limit, make the tear mouth reduce rather than the gap on the curled limit that is close to, and then reduce the gap that the dust got into curled limit, make the tear mouth reduce with the dust accumulation volume on tear mouth orbit, guarantee the health on tear mouth department.
In order to verify the use effect of the aluminum-plastic food packaging bag produced by the processing technology of the aluminum-plastic packaging bag, the following experiments are carried out:
the processing technology of the aluminum-plastic packaging bag is provided for manufacturers of the aluminum-plastic packaging bag, the aluminum-plastic food packaging bags with different qualities are respectively produced, and the product is used and popularized; respectively using the aluminum-plastic food packaging bag produced by the processing technology of the aluminum-plastic packaging bag, producing the aluminum-plastic food packaging bag without tear marks and a certain brand of aluminum-plastic food packaging bag in the market by the processing technology of the aluminum-plastic packaging bag, carrying out product use popularization on the aluminum-plastic food packaging bag, randomly extracting 50 users to carry out use investigation on the aluminum-plastic food packaging bag packaged with a solid and the aluminum-plastic food packaging bag packaged with a fluid instant food, and respectively recording the holding hand feeling of the aluminum-plastic food packaging bag and the smoothness of the tear track;
sampling and heating the produced aluminum-plastic packaging bags by using a RSY-R2 type thermal shrinkage tester, measuring and recording the length before heating and the length after heating, and passing
T is the film heat shrinkage, L1 is the length before heating, L2 is the length after heating, the data are recorded, the results are shown in the following table:
experiment group 1, the aluminum-plastic food packaging bag produced by using the processing technology of the aluminum-plastic packaging bag of the invention:
experiment group 2, the aluminum-plastic food packaging bag without tear marks is produced by using the processing technology of the aluminum-plastic packaging bag of the invention:
experiment group 3, using a certain brand of aluminum plastic food packaging bag on the market:
as can be seen from the experimental group, after the aluminum-plastic food packaging bag is used and popularized, the holding hand feeling of the aluminum-plastic food packaging bag is good;
in the first experimental group, compared with other two groups of experimental data, the aluminum-plastic food packaging bag produced by the processing technology of the aluminum-plastic packaging bag has the best hand feeling in holding and is most smoothly torn, and the thermal shrinkage rate is low due to the arrangement of the transition layer of the thermally induced shape memory polymer material;
in the second experiment group, the aluminum-plastic food packaging bag without tear marks is produced by using the processing technology of the aluminum-plastic packaging bag, compared with the first experiment group and the third experiment group, the tearing smoothness is poor, but the heat shrinkage rate is low;
in the third experimental group, compared with the other two groups of experiments, the aluminum-plastic food packaging bag of a certain brand on the market has the worst holding hand feeling, better tearing smoothness compared with the second experimental group, but higher thermal shrinkage;
in conclusion, the aluminum-plastic food packaging bag produced by the processing technology of the aluminum-plastic packaging bag can be found to greatly improve the holding hand feeling of the aluminum-plastic food packaging bag, and the heat shrinkage rate of the aluminum-plastic packaging bag is improved by arranging the transition layer made of the thermally induced shape memory polymer material, so that the application effect of the aluminum-plastic food packaging bag produced by the processing technology of the aluminum-plastic packaging bag can be further improved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The processing technology of the aluminum plastic packaging bag is characterized in that: the method comprises the following steps:
s1: taking a boiled PE film as a base layer, uniformly coating glue on one surface of the base layer, sticking a thermal induction type shape memory polymer film as a transition layer on one surface of the base layer coated with the glue, taking a VMPET aluminized film as a coating layer, wherein the thickness of the coating layer is 1.5-2 times of that of the base layer, performing composite sticking on the thermal induction type shape memory polymer film and the VMPET aluminized film through aluminized film composite glue, putting the composite aluminum-plastic packaging film into an oven, controlling the temperature of the oven to be 75-90 ℃, and baking for 13-15 hours to obtain the required aluminum-plastic packaging film;
s2: cutting the compounded aluminum-plastic packaging film into rectangular sheets with the length of 7-8cm and circular sheets with the circumference of 23-25cm, selecting two rectangular sheets of the cut aluminum-plastic packaging film, enabling base layers of the rectangular sheets to face to each other, gluing one sides of the two rectangular sheets through aluminized film composite glue, wherein the gluing length is 0.5-1cm, placing the glued rectangular sheets between two composite rollers of a compounding machine, controlling the temperature of the composite rollers to be 85-95 ℃, and compounding to obtain the herringbone aluminum-plastic packaging film composite material;
s3: according to the compounding principle of S2, placing two herringbone aluminum-plastic packaging film composite materials in parallel to enable the base layers to face opposite, adhering the short edges of the herringbone aluminum-plastic packaging film composite materials through aluminized film composite glue, wherein the adhering length is 1cm, and placing the two adhered herringbone aluminum-plastic packaging films between two compounding rollers of a compounding machine for rolling compounding to obtain an aluminum-plastic packaging film cylinder;
s4: the base layer of the circular sheet faces the inside of an aluminum-plastic packaging film cylinder, 1cm of aluminized film composite glue is coated at the edge of the base layer of the circular sheet, the circular sheet and the short sides at the two ends of the aluminum-plastic packaging film cylinder are adhered to form the bottom end of the aluminum-plastic packaging film cylinder, the edge of the bottom end of the aluminum-plastic packaging film cylinder is curled to form a curled edge, the curled edge is adhered and fixed through the aluminized film composite glue, the adhered circular sheet is folded and placed between two composite rollers of a compound machine for rolling and compounding to obtain the required aluminum-plastic food packaging bag;
s5: and finally, wrapping the gluing compound part of the film cylinder of the aluminum-plastic food packaging bag by a boiled PE film strip, and gluing and sealing edges by using an aluminum-plated film compound glue.
2. The processing technology of the aluminum plastic packaging bag according to claim 1, characterized in that: the curled edges are contacted with each other in the S4.
3. The processing technology of the aluminum-plastic packaging bag according to claim 2, characterized in that: the number of the curled edges in the S4 is at least three.
4. The processing technology of the aluminum plastic packaging bag according to claim 1, characterized in that: the thin film of the transition layer used in the step S1 is made of a thermally induced shape memory polymer material, and the thicknesses of the transition layer and the base layer are consistent.
5. The processing technology of the aluminum plastic packaging bag according to claim 1, characterized in that: and in the S5, after the tearing opening is opened through a tapping machine, a tearing mark connected with the tearing opening is marked and processed through a manual machine.
6. The processing technology of the aluminum plastic packaging bag according to claim 5, characterized in that: for the aluminum-plastic food packaging bag filled with the solid fast food, the tearing mark connected with the tearing opening is processed into an inward concave shape by manual mechanical marking.
7. The processing technology of the aluminum plastic packaging bag according to claim 5, characterized in that: for the aluminum-plastic food packaging bag filled with the fluid fast food, the tearing mark connected with the tearing opening is processed into an outward concave shape by manual mechanical marking.
8. The processing technology of the aluminum-plastic packaging bag according to any one of claims 1 to 7, characterized in that: the number of the curled edges of the aluminum-plastic food packaging bag is three; in S1, the metal wire is adhered and fixed between the base layer and the transition layer through the aluminized film composite adhesive; the distance between every two adjacent metal wires is 7cm, and when S2 is cut along the parallel direction of the metal wires, the cutting is carried out at the position of 1.25cm at the upper ends of the metal wires; after cutting, an upper tear mark and a lower tear mark which are parallel to the metal wire are processed by manual mechanical marking, and the tear marks and the metal wire are gathered by 0.25 cm.
9. The processing technology of the aluminum-plastic packaging bag according to any one of claims 1 to 7, characterized in that: the number of the curled edges of the aluminum-plastic food packaging bag is not less than four; in S1, the metal wire is adhered and fixed between the base layer and the transition layer through the aluminized film composite adhesive; the distance between two adjacent metal wires is 14cm, when cutting is carried out in S2 along the parallel direction of the metal wires, 7cm is cut in an equivalent manner, and the cutting position is 1.25cm at the upper end of the metal wires; two adjacent rectangular sheets with metal wires are made into herringbone aluminum-plastic packaging film combinations, two rectangular sheets without metal wires are made into the herringbone aluminum-plastic packaging film combinations, the two herringbone aluminum-plastic packaging film combinations with the metal wires and without the metal wires are subjected to adhesive compounding in S3, the curled edges with the two metal wires are provided with tearing openings through an opening machine in S5, and the curled edges with one metal wire are marked and processed into tearing marks through an artificial machine.
10. The processing technology of the aluminum-plastic packaging bag according to any one of claims 1 to 8 or 9, characterized in that: the inner space of the aluminum-plastic packaging bag in the S2 is cylindrical; the aluminum-plastic food packaging bag is vertically placed in the transportation process; the aluminum-plastic packaging bag is transversely placed in the household use process.
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| CN202111467350.5A CN114290757A (en) | 2021-12-03 | 2021-12-03 | Processing technology of aluminum plastic packaging bag |
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| CN202111467350.5A CN114290757A (en) | 2021-12-03 | 2021-12-03 | Processing technology of aluminum plastic packaging bag |
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| CN116714265A (en) * | 2023-08-11 | 2023-09-08 | 天津航天机电设备研究所 | Edge processing method suitable for large-scale film structure in space |
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