CN113183581A - Degradable film with high barrier property and inflatable packaging bag thereof - Google Patents
Degradable film with high barrier property and inflatable packaging bag thereof Download PDFInfo
- Publication number
- CN113183581A CN113183581A CN202110657561.9A CN202110657561A CN113183581A CN 113183581 A CN113183581 A CN 113183581A CN 202110657561 A CN202110657561 A CN 202110657561A CN 113183581 A CN113183581 A CN 113183581A
- Authority
- CN
- China
- Prior art keywords
- layer
- degradable film
- barrier property
- high barrier
- degradable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000004888 barrier function Effects 0.000 title claims abstract description 40
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 39
- 239000002245 particle Substances 0.000 claims abstract description 28
- 230000015556 catabolic process Effects 0.000 claims abstract description 14
- 238000006731 degradation reaction Methods 0.000 claims abstract description 14
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 11
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 11
- 229920001896 polybutyrate Polymers 0.000 claims abstract description 11
- 208000034530 PLAA-associated neurodevelopmental disease Diseases 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 18
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 12
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims description 12
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims description 12
- 229920003023 plastic Polymers 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 239000004840 adhesive resin Substances 0.000 claims description 6
- 229920006223 adhesive resin Polymers 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 5
- 239000002985 plastic film Substances 0.000 claims description 5
- 229920006255 plastic film Polymers 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 abstract description 7
- 230000003139 buffering effect Effects 0.000 abstract description 6
- 229920005989 resin Polymers 0.000 abstract description 5
- 239000011347 resin Substances 0.000 abstract description 5
- 239000005022 packaging material Substances 0.000 abstract description 4
- 239000004698 Polyethylene Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 5
- 238000013329 compounding Methods 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000004794 expanded polystyrene Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920006248 expandable polystyrene Polymers 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000013518 molded foam Substances 0.000 description 1
- 239000011185 multilayer composite material Substances 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
- B65D81/03—Wrappers or envelopes with shock-absorbing properties, e.g. bubble films
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Buffer Packaging (AREA)
- Wrappers (AREA)
Abstract
The invention discloses a degradable film with high barrier property and an inflatable packaging bag thereof, wherein the degradable film comprises five layers, namely a first LLDPE layer, a second TIE bonding resin layer, a third PA layer, a fourth TIE bonding resin layer and a fifth LLDPE layer, wherein the first layer and the fifth layer have the same symmetrical structure, and the second layer and the fourth layer have the same symmetrical structure; degradation particles mixed by PLA and PBAT are added in the five-layer material formula, so that the degradation performance of the material is realized while the air tightness is ensured; the inflatable packaging bag adopts the degradable membrane with high barrier property as the one-way reverse valve, has the characteristics of high inflation efficiency, long air locking time, good anti-seismic buffering effect and the like, can be used as a cushioning packaging material in an article after inflation, can also be used as a six-face protection pad in the article packaging box, and can also be used as an article outer packaging bag to directly make a retail or express transportation package of the product.
Description
Technical Field
The invention relates to a buffering packaging material, in particular to a packaging material for preparing a moisture-proof, shockproof, extrusion-proof and impact-proof high-barrier degradable film and an inflatable packaging bag prepared by utilizing the degradable film.
Background
When a plurality of commodities, particularly electronic products, fragile products and the like are stored and transported, foamed polystyrene, polyethylene bubble cushions and the like are needed to be filled between a packing box and the commodities, or the commodities are directly packed by using a foaming material, so that the effects of shock resistance, extrusion resistance and impact resistance are achieved, and the commodities are prevented from being damaged during storage and transportation. The traditional products of Expanded Polystyrene (EPS) and polyethylene foam plastics (EPE) can be transported to users for use only after being foamed and molded by manufacturers or processed, and the molded foam plastics have huge volume and are very inconvenient to transport and store. The in-situ foaming material developed for convenient transportation is mainly made of polyurethane foam plastic products, and the polyurethane foam plastic products are foamed and expanded beside the contents to form a protective model. However, the price of the material is relatively high and has certain requirements on field equipment, and meanwhile, the material is not suitable for the inner package of large-scale production line products such as electronic products in terms of the requirements on the efficiency and the working strength of workers. Meanwhile, the Expanded Polystyrene (EPS) products have serious disadvantages and become "white pollution" which is harmful to people. Compared with a buffer product which is only used in a short period of the transportation link, the waste treatment of the permanent polyphenyl foaming package brings serious pollution to the environment, for example, toxic gas is generated by combustion, and geological structures are damaged due to the fact that the landfill cannot be corroded.
An improved inflatable bag packing product in recent years comprises an air bag and a one-way check valve thereof, wherein the air bag is inflated through the one-way check valve and prevents air in the bag from flowing back and leaking out, the inflated air bag has a good buffering effect of absorbing impact energy, and the inflated air bag is used for wrapping a commodity or filling the commodity and a packing box so as to protect the commodity from being damaged. The air bag is not inflated during production and transportation, is inflated only when the goods are packaged, and can be recycled after being used, so that the defects of the traditional foaming material are overcome. At present, most of one-way check valves used by the inflatable bag are formed by two membranes with self-absorption functions, the two membranes are separated to form an air inlet channel during inflation, the self-absorption force between the membranes after inflation and the air pressure in the bag enable the membranes to be attached together to close the air inlet channel, and the airtight effect is achieved. Compared with a mechanical check valve, the one-way check valve is simple in structure, flexible and foldable in structure and better in air tightness, and the manufacturing and assembly of the one-way check valve are completed when the inflatable bag is manufactured through heat sealing. The diaphragm forming the check valve is made of PE material, a certain amount of EVA is added into the PE for improving self-adsorption capacity, and the PE and the EVA are uniformly mixed and extruded by an extruder to form a film through blow molding. However, the check valve formed by the film still has unsatisfactory air tightness, because EVA and maleic anhydride grafted PE providing adsorption force are greatly influenced by temperature in the process of heat-sealing bag making, air charging efficiency is easily influenced by baking and adhering an air inlet channel, and the adhesion of two layers of check valves is also influenced. Still can slowly reveal when the product uses, the base material of valve body material is PE mainly, and its air transmission rate is very high, and the separation is than the not good leakage that leads to of laminating of poor and two-layer valve body material. To solve this problem, the current solutions are to make an article from the valve body structure, for example, the self-adhesive film check valve disclosed in CN102689743A, and a short check sealing film is added between two films forming the check valve to form a double sealing structure, but this increases the processing difficulty.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a degradable film with high barrier property, which starts with a high-barrier film material to improve the air tightness of the one-way check valve; the invention also provides an inflatable packaging bag made of the degradable film material, which has the characteristics of high inflation efficiency, long air locking time, good anti-seismic buffering effect and the like, can be used as an inner buffering packaging material for articles after being inflated, can also be used as a six-side protection pad in an article packaging box, and can also be used as an outer packaging bag for articles to be directly made into retail or express transportation packaging of the products.
The technical scheme of the invention is as follows: a degradable film with high barrier property comprises five layers, namely a first LLDPE layer, a second TIE bonding resin layer, a third PA layer, a fourth TIE bonding resin layer and a fifth LLDPE layer, wherein the first layer and the fifth layer have the same symmetrical structure, and the second layer and the fourth layer have the same symmetrical structure; the five-layer material formula is added with degradation particles mixed by PLA and PBAT, so that the degradation performance of the material is realized while the air tightness is ensured.
An inflatable packaging bag prepared by utilizing the degradable film with high barrier property comprises a bag body formed by heat-sealing two wide plastic films a and b, and an inflatable bag one-way reverse valve P formed by two degradable film materials f1 and f2 with high barrier property; the bag body is provided with an air column S for storing media such as air, a tubular air inlet main channel D is arranged at the top of the air column S and communicated with each independent inflation space through a one-way check valve P, and a plurality of independent air columns S are formed during inflation.
As a refinement of the invention, the third layer replaces the PA layer with an EVOH layer.
As a modification of the invention, the third layer of PA particles or EVOH particles accounts for 5-15% of the total mass of the particles used in the degradable film.
As an improvement of the invention, the mixing ratio of the PLA to the PBAT degradation particles is 1: 2-1: 4.
As an improvement of the invention, the addition amount of the PLA and PBAT degradation particles is 10-50% of the total plastic particle mass.
As a modification of the invention, the gas column S is formed by a single space or a plurality of independent inflation spaces; and then through different folding and secondary heat sealing, the inflatable buffer packaging bag with different shapes and functions is formed.
When the air column S adopts a plurality of inflation spaces, a distribution channel is arranged on the bag body and is communicated with each independent inflation space through the one-way check valve.
As an improvement of the invention, the surface of the degradable film material f1 or f2 with high barrier property is provided with heat-resistant ink.
As an improvement of the present invention, the opposite inner sides of one layer of the degradable film material f1 or f2 with high barrier property are provided with corona, so that f1 or f2 becomes an adsorptive polar film, and an opposite mode that one side is overlapped relatively is adopted.
The degradable film with high barrier property and the inflatable packaging bag thereof have the following beneficial effects:
(1) the PA or EVOH layer is compounded on the middle layer of the PE substrate, so that the barrier property of the valve body material is greatly improved, and the gas retention performance of the inflatable bag is remarkably improved;
(2) because the PA or EVOH layer is compounded on the middle layer of the film, the printing precision is improved, the composite cutting and other work are facilitated during the later printing, the structural precision of the heat seal part and the inflation channel part of the one-way check valve is ensured, the smooth lamination of the one-way check valve after the inflation is facilitated, and the sealing reliability is improved;
(3) the degradation particles blended by PLA and PBAT are added into the material formula of each layer, so that the used film has good degradability, and the material is more energy-saving and environment-friendly;
(4) the adoption of the one-way check valve and the inflatable bag of the one-way check valve greatly improves the air tightness.
Drawings
FIG. 1 is a schematic diagram of the structure of the degradable film with high barrier property of the present invention;
FIG. 2 is a cross-sectional view of an airbag inflation seal made using a degradable film having high barrier properties;
FIG. 3 is a schematic structural view of a multi-cell airbag made of a degradable film with high barrier property.
In the figure: 1. a first layer; 2. a second layer; 3. a third layer; 4. a fourth layer; 5. a fifth layer; a. coating a film; b. a lower film; s, gas column; D. an intake manifold; p, a one-way check valve.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples to assist in understanding the content of the invention.
Example 1
A degradable film with high barrier property is a composite film structure and is formed by compounding multiple layers; as shown in fig. 1, the multilayer composite material specifically includes 5 layers, namely a first layer 1 is an LLDPE layer, a second layer 2 is a TIE adhesive resin layer, a third layer 3 is a PA layer, a fourth layer 4 is a TIE adhesive resin layer, and a fifth layer 5 is an LLDPE layer, wherein the first layer 1 and the fifth layer 5 have the same symmetrical structure, and the second layer 2 and the fourth layer 4 have the same symmetrical structure; the five-layer material formula is added with the degradation particles mixed by PLA and PBAT, so that the air tightness is ensured, the degradation performance of the material is realized, the degradation performance of the plastic is realized, and the environmental pressure is effectively reduced.
Further, the third layer 3 replaces the PA layer with an EVOH layer, since EVOH particles also have excellent barrier properties; specifically, the dosage of the PA particles or EVOH particles of the third layer 3 accounts for 5-15% of the total mass of the particles used in the degradable film; preferably 10%, while the LLDPE particles of the first layer 1 and the fifth layer 5 are used in the same amount, both 20% to 30%, preferably 26%, and the TIE binder resin particles of the second layer 2 and the fourth layer 4 are used in the same amount, both 15% to 25%, preferably 20%.
Further, the mixing ratio of the PLA to the PBAT degradation particles is 1: 2-1: 4, preferably 1: 3; specifically, the adding amount of the PLA and PBAT degradation particles is 10-50% of the mass of the total plastic particles, and preferably 20-30%; specifically, 25% of the mixed degradable particles of each layer of particles are added into the first layer 1, the second layer 2, the third layer 3, the fourth layer 4 and the fifth layer 5, so that the degradable requirement of the film is met.
Further, the degradable film adopts multilayer coextrusion compounding or tape casting compounding, the content of each component in the product is controlled by the use amount of raw materials, and specifically, the content of each layer of components is calculated according to the thickness proportion of the raw materials, so that the production control is facilitated.
Example 2
As shown in fig. 2, an inflatable packaging bag prepared by using the degradable film with high barrier property comprises a bag body formed by heat-sealing two wide plastic films a and b, specifically, the upper film is a, and the lower film is b; meanwhile, two degradable film materials f1 and f2 with high barrier property are adopted to form a one-way reverse valve P (also called an air valve film) of the air bag; the bag body is provided with an air column S for storing media such as air and the like, the top of the air column S is provided with a tubular air inlet main channel D, the air inlet main channel D is communicated with each independent inflation space through the one-way check valve P, and a plurality of independent air columns S are formed during inflation; specifically, the opposite sides of two degradable membrane materials with high barrier property are printed with heat-resistant ink, so that the parts forming an air inlet channel between the two membrane materials cannot be bonded together by heat sealing during heat sealing; further, in order to improve the adhesion of the heat-resistant ink, corona is arranged on the opposite inner side of one of the f1 or f2, so that f1 or f2 becomes a polar film with adsorbability, and the self-adhesion performance of the f1 and f2 films is improved;
specifically, when the inflatable bag body is inflated, air enters a hidden sealing part printed with heat-resistant ink between film materials f1 and f2 along the air inlet main channel D in FIG. 2, and air pressure enters the bag body along a passage formed by heat sealing on degradable film materials f1 and f2 with high barrier property, so that the plastic films f1 and f2 forming the bag body are separated and expanded until the bag body is filled with the air columns S; and then stopping inflation, wherein the passages formed on the f1 and the f2 are small, the f1 and the f2 are both attached to the upper film a of the bag body in a heat sealing mode, and the reaction force of the air pressure in the bag is added, so that the total air inlet channel D is closed, the air in the bag cannot leak between the two pieces of film materials f1 and f2, and finally, the air locking and sealing of the air column S are realized.
Further, the air column S is a single space or is composed of a plurality of independent inflation spaces; and then through different folding and secondary heat sealing, the inflatable buffer packaging bag with different shapes and functions is formed.
Further, when the air column S adopts a plurality of independent inflation spaces, a distribution channel is arranged on the bag body and is communicated with each independent inflation space through the one-way check valve P.
Example 3
As shown in fig. 3, an airbag comprising a plurality of independent inflation spaces, wherein the airbag is structured as shown in fig. 2, and comprises a bag body formed by two wide plastic films (an upper film a and a lower film b) through heat sealing, and an airbag one-way reverse valve P formed by two degradable film materials f1 and f2 with high barrier property; the bag body is equipped with tubular air inlet main channel D including a plurality of gas columns S that can deposit media such as air, the top, and air inlet main channel D passes through one-way reverse valve P communicates with each other with each independent inflation space, forms a plurality of links to each other when aerifing gas columns S, the different folding and the secondary heat-seal of rethread form the buffering wrapping bag of aerifing of different shapes and function.
The degradable film with high barrier property of the invention has a composite film structure of 5 layers of LLDPE layer/TIE adhesive resin layer/PA or EVOH layer/TIE adhesive resin layer/LLDPE layer from outside to inside in sequence according to the structure shown in figure 1. Specifically, the PA or EVOH is 5%, 7%, 10% and 15% respectively according to the percentage of the components in different layers in the total thickness of the whole film under the condition that other components are not changed, then film samples 1# -4# with different barrier layer contents are formed through co-extrusion compounding, and simultaneously LDPE and 5% EVA are mixed, extruded and blown into a film as a comparative sample 5 #.
The barrier property test method is as follows:
the method comprises the following specific steps: 1# -4# sample and a comparison sample 5#, each sample is cut into 100mm long and 100mm wide sheet samples to form 5 groups of samples, and the samples are respectively tested according to GB/T1038-.
As can be seen from table 1, in samples 1# -4#, as the proportion of the high barrier layer material is continuously increased, the air transmission rate is continuously reduced, that is, the barrier property of the material is continuously increased; however, the larger the content of the barrier layer is, the higher the rigidity of the material is, but in practical use, the barrier layer and the material need to be organically combined, and the barrier layer has certain rigidity and good flexibility. The comparative sample No. 5, however, has an air transmission rate of several tens of times that of the other samples because it has no barrier material layer. Because the area of the air inlet T is smaller, the two layers of films forming the bag body are generally high-barrier films containing PA or EVOH, the economical efficiency, the air retention performance and the actual use environment of the product are comprehensively considered, and the proportion of 2# to 3# samples can be preferably selected, so that the good barrier effect can be ensured, and meanwhile, the good film flexibility is ensured.
Finally, it should be noted that the above-mentioned list is only a specific embodiment of the present invention. It is obvious that the present invention is not limited to the above embodiments, but many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (10)
1. A degradable film with high barrier property, characterized in that the degradable film comprises five layers, namely a first layer (1) of LLDPE layer, a second layer (2) of TIE adhesive resin layer, a third layer (3) of PA layer, a fourth layer (4) of TIE adhesive resin layer and a fifth layer (5) of LLDPE layer, wherein the first layer (1) and the fifth layer (5) have the same symmetrical structure, and the second layer (2) and the fourth layer (4) have the same symmetrical structure; the five-layer material formula is added with degradation particles mixed by PLA and PBAT.
2. An air-packing bag made of the degradable film of claim 1, comprising a bag body formed by heat-sealing two wide plastic films a, b, an air-packing bag one-way check valve P formed of two degradable film materials f1, f2 having high barrier property; the bag body is provided with an air column S for storing media such as air, the top of the air column S is provided with a tubular air inlet main channel D, the tubular air inlet main channel D is communicated with each independent inflation space through a one-way check valve P, and a plurality of independent air columns S are formed during inflation.
3. Degradable film with high barrier property according to claim 1 characterized in that the third layer (3) replaces the PA layer with an EVOH layer.
4. Degradable film with high barrier property according to claim 3, characterized in that the amount of PA particles or EVOH particles of the third layer (3) is 5% -15% of the total mass of the particles used in degradable film.
5. The degradable film with high barrier property of claim 1, wherein the mixing ratio of the PLA to the PBAT degradation particles is 1: 2-1: 4.
6. The degradable film with high barrier property of claim 5, wherein the PLA and PBAT degradable particles are added in an amount of 10-50% of the total plastic particle mass.
7. An inflatable packaging bag made of degradable films according to claim 2, wherein the air column S is made of a single space or a plurality of independent inflatable spaces; and then through different folding and secondary heat sealing, the inflatable buffer packaging bag with different shapes and functions is formed.
8. The inflatable packaging bag made of the degradable film according to claim 7, wherein when a plurality of inflatable spaces are adopted for the air column S, a distribution channel is arranged on the bag body and is communicated with each independent inflatable space through the one-way check valve.
9. The inflatable packaging bag made of the degradable film as claimed in claim 2, wherein the surface of the degradable film material f1 or f2 with high barrier property is provided with heat-resistant ink.
10. An inflatable packaging bag made of degradable film according to claim 2, wherein the opposite inner sides of one layer of degradable film material f1 or f2 with high barrier property are provided with corona and are in an opposite mode with one side being overlapped relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110657561.9A CN113183581A (en) | 2021-06-13 | 2021-06-13 | Degradable film with high barrier property and inflatable packaging bag thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110657561.9A CN113183581A (en) | 2021-06-13 | 2021-06-13 | Degradable film with high barrier property and inflatable packaging bag thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113183581A true CN113183581A (en) | 2021-07-30 |
Family
ID=76976413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110657561.9A Pending CN113183581A (en) | 2021-06-13 | 2021-06-13 | Degradable film with high barrier property and inflatable packaging bag thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113183581A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114851667A (en) * | 2022-05-29 | 2022-08-05 | 浙江英纳威包装材料有限公司 | Preparation method of fluid barrier film, fluid barrier film and fluid container |
-
2021
- 2021-06-13 CN CN202110657561.9A patent/CN113183581A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114851667A (en) * | 2022-05-29 | 2022-08-05 | 浙江英纳威包装材料有限公司 | Preparation method of fluid barrier film, fluid barrier film and fluid container |
| CN114851667B (en) * | 2022-05-29 | 2023-07-28 | 浙江英纳威包装材料有限公司 | Preparation method of fluid barrier film, fluid barrier film and fluid container |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101513952B (en) | Reusable multifunctional three-dimension sealing and packing material and method for preparing same | |
| CN1068543C (en) | A packaging material and a method for its manufacture | |
| CN103224094B (en) | Y-shaped inflatable bag and manufacturing method thereof | |
| CN102556501B (en) | Air packaging bag with five-layer structure and manufacturing method thereof | |
| CN113183581A (en) | Degradable film with high barrier property and inflatable packaging bag thereof | |
| CN101891037A (en) | Multi-buffer air packing device | |
| CN103241456B (en) | Double-buffering inflatable packaging bag and manufacturing method thereof | |
| CN203307275U (en) | Polar membrane with adsorbability, and one-way check valve and inflated bag | |
| CN108515725B (en) | Compression-resistant buffer packaging bag and preparation method thereof | |
| CN104553150A (en) | PE composite film for alcoholic beverage flexible package as well as preparation method and flexible package of composite film | |
| CN201923479U (en) | Air packing bag with five-layer structure | |
| CN203229051U (en) | Y-shaped inflatable bag | |
| EP1214897A3 (en) | Improved flexible barrier membrane | |
| JP2012176770A (en) | Packaging bag, package using the same, and method of manufacturing the package | |
| CN204914810U (en) | Novel polyethylene film | |
| CN209455340U (en) | A kind of resistance to compression bubble chamber film and resistance to compression bubble chamber film bag | |
| CN114953688B (en) | Composite sheet for injection packaging and preparation method and application thereof | |
| CN206186487U (en) | A shock -resistant packaging composite film for X -ray film | |
| CN1895967A (en) | Air-isolated and self-adhering packing material and its preparation | |
| CN103275630B (en) | Polar membrane material with adsorptivity, unidirectional check valve and air bag | |
| CN102975446B (en) | Cushion packaging material used in industrial product inflation | |
| CN104724392B (en) | The air-packing bag and its manufacture method of a kind of five-layer structure | |
| US20240116679A1 (en) | Recyclable bag | |
| CN214927621U (en) | Air valve membrane material, air valve membrane and inflatable bag | |
| CN201209048Y (en) | Functional self-adhering film air buffering packing bag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210730 |
|
| WD01 | Invention patent application deemed withdrawn after publication |