CN111993715A - Packaging composite film and packaging bag - Google Patents

Packaging composite film and packaging bag Download PDF

Info

Publication number
CN111993715A
CN111993715A CN202010768677.5A CN202010768677A CN111993715A CN 111993715 A CN111993715 A CN 111993715A CN 202010768677 A CN202010768677 A CN 202010768677A CN 111993715 A CN111993715 A CN 111993715A
Authority
CN
China
Prior art keywords
layer
packaging
adsorbent
composite film
packaging composite
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
Application number
CN202010768677.5A
Other languages
Chinese (zh)
Inventor
苏卓欣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Super Dry Desiccant Shenzhen Co ltd
Original Assignee
Super Dry Desiccant Shenzhen Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Super Dry Desiccant Shenzhen Co ltd filed Critical Super Dry Desiccant Shenzhen Co ltd
Priority to CN202010768677.5A priority Critical patent/CN111993715A/en
Publication of CN111993715A publication Critical patent/CN111993715A/en
Pending legal-status Critical Current

Links

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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • 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
    • 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
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls
    • 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
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
    • 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
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/28—Applications of food preservatives, fungicides, pesticides or animal repellants
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption

Abstract

The invention provides a packaging composite film, which comprises a packaging composite film body, wherein an adsorption area is arranged on the packaging composite film body, the adsorption area comprises an outer isolation layer for isolating outside air, a middle adsorption layer containing an adsorbent and an inner breathable layer for communicating inner air with the middle adsorption layer, the outer isolation layer is arranged on the outer side, the inner breathable layer is arranged on the inner side, and the middle adsorption layer is arranged between the outer isolation layer and the inner breathable layer. The invention integrates the adsorbent (desiccant) and the packaging bag film, not only can expand the function of the packaging bag, but also can directly put the product into the packaging bag to seal the opening without being limited by the packaging method, thereby completing the packaging process, being convenient and rapid, reducing the production process, reducing the production cost, being beneficial to improving the production quality, and effectively avoiding the situation that the adsorbent (desiccant) is eaten by children by mistake.

Description

Packaging composite film and packaging bag
Technical Field
The invention relates to the technical field of packaging, in particular to a packaging composite film and a packaging bag.
Background
The packaging bag is used for packaging various articles, so that goods are convenient to transport and easy to store in the production flow process, and the packaging bag is widely used in daily life and industrial production. The existing packaging bag film only exists in the level of barrier function, and has weak adsorption effect on the packaged objects such as moisture absorption, oxygen absorption and absorption of ripening gas.
Many products, such as food products, require a high storage environment, and a bag-shaped desiccant is usually put into a package bag to prolong the shelf life of the food.
On one hand, the desiccant needs to be packaged in a packaging bag for drying and moisture-proof during product packaging and transportation, and a procedure for putting the desiccant is additionally added for workers in a packaging process of a factory. Moreover, the individual functional desiccants have special requirements on the process of packaging the products, such as incapability of directly contacting the product package, use of baffles for separation, giving a desiccant absorbing space and the like, so that the packaging process is complicated, or the goods are damaged by water vapor in the transportation process or the desiccants do not play a role in moisture absorption and moisture prevention due to improper operation of workers.
On the other hand, the condition that the drying agent in the packaging bag is eaten by children by mistake is frequently rare, and great potential safety hazard exists for the life health of the children.
Thus, the prior art has yet to be improved and enhanced.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention is directed to a packaging composite film and a packaging bag.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a packaging composite film, which comprises a packaging composite film body, wherein an adsorption area is arranged on the packaging composite film body, the adsorption area comprises an outer isolation layer for isolating outside air, a middle adsorption layer containing an adsorbent and an inner breathable layer for communicating inner air with the middle adsorption layer, the outer isolation layer is arranged on the outer side, the inner breathable layer is arranged on the inner side, and the middle adsorption layer is arranged between the outer isolation layer and the inner breathable layer.
In a preferred embodiment, the middle absorbent layer of the packaging composite film includes a loose structure layer, the absorbent is absorbent particles, and the absorbent particles are dispersed in the loose structure layer.
In a preferred embodiment, the composite packaging film further comprises a loose and flexible smooth wrapping layer separating the outer barrier layer from the middle absorbent layer, the smooth wrapping layer being disposed between the outer barrier layer and the middle absorbent layer and/or between the middle absorbent layer and the inner gas permeable layer.
In a preferred embodiment, the intermediate absorbent layer of the composite packaging film comprises a loose, flexible smooth wrapping layer, and the absorbent is attached to the smooth wrapping layer.
Further, the packaging composite film, the adsorbent is attached to the smooth wrapping layer in a crystallized form.
Furthermore, the loose structure layer of the packaging composite film is woven by a loose-structure fiber material.
Preferably, the fiber material of the packaging composite film is polyester fiber.
Preferably, the smooth wrapping layer of the packaging composite film is woven by compressed cotton.
In a preferred embodiment, the inner breathable layer of the packaging composite film is a waterproof breathable film.
Specifically, the adsorbent of the packaging composite film is one or more of a drying agent, a deoxidizer, an ethylene absorbent and a deodorant.
In a preferred embodiment, a circle of double-sided adhesive tape for folding and sealing the packaging composite film body into a sealed bag is disposed on an inner side of the packaging composite film body, and the adsorption region is disposed in the circle surrounded by the double-sided adhesive tape.
The invention also provides a packaging bag which comprises a bag body, wherein the bag body is made of the packaging composite film.
Compared with the prior art, the packaging composite film provided by the invention comprises a packaging composite film body, wherein the packaging composite film body is provided with an adsorption area, the adsorption area comprises an outer isolation layer for isolating outside air, a middle adsorption layer containing an adsorbent and an inner breathable layer for communicating inner air with the middle adsorption layer, the outer isolation layer is arranged on the outer side, the inner breathable layer is arranged on the inner side, and the middle adsorption layer is arranged between the outer isolation layer and the inner breathable layer. The invention integrates the adsorbent (desiccant) and the packaging bag film, not only can expand the function of the packaging bag, the packaging bag can wrap the whole goods to ensure that the adsorbent (desiccant) can carry out (moisture-proof) protection on the product in all directions, but also does not need to be limited by the packaging method to arrange and position the adsorbent (desiccant), the product can be directly placed into the packaging bag to be sealed, the packaging process can be completed, the convenience and the rapidness are realized, the production process is reduced, the production cost is reduced, the improvement of the production quality is facilitated, and the occurrence of the situation that the adsorbent (desiccant) is eaten by children by mistake can be effectively avoided.
Drawings
Fig. 1 is a schematic structural diagram of a packaging composite film according to the present invention.
Fig. 2 is a schematic structural diagram of a packaging composite film provided by the present invention.
Fig. 3 is a first schematic structural diagram of the packaging bag provided by the present invention.
Fig. 4 is a schematic structural diagram of a packaging bag provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "on," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
It should be noted that the terms of orientation such as left, right, up and down in the embodiments of the present invention are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.
As shown in fig. 1 and 2, the packaging composite film provided by the present invention includes a packaging composite film body, wherein an adsorption region is disposed on the packaging composite film body, the adsorption region includes an outer isolation layer 1 for isolating outside air, a middle adsorption layer 2 containing an adsorbent, and an inner air-permeable layer 3 for allowing inside air to flow through the middle adsorption layer 2, the outer isolation layer 1 is disposed on the outer side, the inner air-permeable layer 3 is disposed on the inner side, and the middle adsorption layer 2 is disposed between the outer isolation layer 1 and the inner air-permeable layer 3. The adsorbent is generally arranged between the outer isolation layer 1 and the inner breathable layer 3 in a solid form, and specifically, the adsorbent adopts one or more of a drying agent, a deoxidizing agent, an ethylene absorbent, a deodorant and the like to adapt to the functional effects required by different products. For example, the deoxidizer can adopt a mixed formula of iron powder, diatomite, carbon powder, trace sodium hydroxide and the like; the drying agent can be calcium chloride sand grains or montmorillonite, silica gel sand grains and the like; the deodorant is used for removing peculiar smell and can adopt activated carbon powder, alumina particles or nano ceramic sand particles and the like; the ethylene absorbent can be alumina particles with potassium permanganate formula.
The outer side isolation layer 1 is made of a low-air-permeability packaging film, can be made of a common packaging bag film, an aluminum-plated packaging film and the like, and generally has a water vapor transmission rate of less than 5 g/square meter for 24 hours according to the waterproof requirement. The inner side breathable layer 3 is used for absorbing a target object in the air at the inner side of the inner side breathable film by the adsorbent, and the target object can be one or more of water vapor, oxygen, ethylene, peculiar smell gas, formaldehyde and the like. The inner side breathable layer 3 is a unidirectional breathable film, and generally can be made of breathable PE (polyethylene, PE for short, a thermoplastic resin prepared by polymerizing ethylene) material or PE composite material, and has breathability, and the water vapor transmission rate can be more than 1000 g/square meter for 24 hours. The PE material (film) has good heat sealing performance, the required temperature is about 110-130 ℃, the requirement on heat sealing equipment is friendly, the heat sealing quality is favorably ensured, and the production efficiency is improved. Of course, the inner breathable layer 3 may also be made of PP (polypropylene, a polymer obtained by propylene addition polymerization), which requires a relatively high heat sealing temperature, which is highly required for heat sealing equipment and affects production efficiency.
Preferably, in the packaging composite film provided by the present invention, the middle adsorption layer 2 includes a loose structure layer, the adsorbent is adsorption particles, and the adsorption particles are dispersed in the loose structure layer. In this embodiment, the loose structure layer is a porous and fluffy flexible structure, the adsorption particles are dispersed in the pores of the loose structure layer, and the loose structure layer mainly plays a certain role in dispersing and fixing the adsorption particles and can improve the contact area between the adsorbent and the air, thereby ensuring the adsorption efficiency and effect. Furthermore, the loose structure layer of the packaging composite film provided by the invention is woven by a loose-structure fiber material. Preferably, the fiber material of the packaging composite film provided by the embodiment is polyester fiber, and cotton and other materials can also be adopted, but the polyester fiber has good wrinkle resistance and shape retention, has high strength and elastic recovery capability, is firm and durable, and has lower cost compared with other fiber materials.
Preferably, in the packaging composite film provided in this embodiment, the adsorption region further includes a loose and soft smooth wrapping layer 4 for separating the outer isolation layer 1 and the middle adsorption layer 2, the smooth wrapping layer 4 has two layers, which are respectively disposed between the outer isolation layer 1 and the middle adsorption layer 2 and between the middle adsorption layer 2 and the inner air-permeable layer 3, and the smooth wrapping layer 4 wraps the middle adsorption layer 2. The smooth wrapping layer 4 has the effect of wrapping the middle adsorption layer 2, so that the contained substances in the middle adsorption layer 2 are not easy to penetrate through the outer side isolation layer 1 or the inner side, and the outer side isolation layer 1 is prevented from being uneven and smooth. Preferably, the smooth wrapping layer 4 is made of cotton fibers. Preferably, in the packaging composite film provided by the invention, the smooth wrapping layer 4 is woven by compressed cotton, the compressed cotton is also called compressed sponge, is a high-density and high-hardness product made of polyvinyl alcohol, and is characterized in that the product is of a continuous porous structure, the polyvinyl alcohol (PVA) has remarkable absorbability and water retention capacity, and is mainly of the hydrophilicity of the material and the structure of continuous porous molecules, so that the polyvinyl alcohol (PVA) material is favorable for being applied to dehydration, water absorption and filtration. The drying effect of the product is further improved due to the efficacy of physical adsorption of water vapor.
Preferably, in another preferred embodiment of the present invention, the intermediate absorbent layer comprises a loose and soft smooth wrapping layer, and the absorbent is attached to or blended with the smooth wrapping layer. Further, the adsorbent is attached to the smooth wrapping layer in a crystalline form. Specifically, the adsorbent is prepared into a solution, the smooth wrapping layer is fully soaked by the solution, and then the solution on the smooth wrapping layer is volatilized and crystallized by means of drying and the like, so that the adsorbent is attached to the smooth wrapping layer, and the integration of the adsorbent and the smooth wrapping layer is realized. More specifically, preferably, the smooth wrapping layer is a layer of compressed cotton, the adsorbent is calcium chloride, the compressed cotton is soaked in a calcium chloride solution, then the compressed cotton is dried, and water on the compressed cotton is evaporated, so that calcium chloride is reserved in the smooth wrapping layer, and the middle adsorption layer has a drying effect. The adsorbent is attached to or mixed with the smooth wrapping layer, namely the adsorbent can be added in the form of steam or powder in the process of forming the smooth wrapping layer, after the smooth wrapping layer is formed, the adsorbent is mixed and melted with the smooth wrapping layer, in the microstructure of the layer, the adsorbent exists on the framework in a crystallization mode, in the pore diameter or is grafted on the connecting part of the net structure, and calcium chloride can be selected as the adsorbent in the process. The arrangement can make the packaging composite film thinner, but has certain requirements on the adsorbent, relatively complex production process and higher production cost.
Referring to fig. 1 and fig. 2, in the packaging composite film according to the present invention, the inner breathable layer 3 is a waterproof breathable film. Some adsorbents, such as calcium chloride, become colloidal after absorbing water, the liquid phenomenon is more obvious along with the increase of the moisture absorption rate, the leakage phenomenon is easy to occur, the waterproof breathable film can effectively isolate water drops accumulated in the middle adsorption layer 2 to the outside, the leakage is prevented, and the drying effect can be further ensured.
Preferably, in another embodiment of the packaging composite film provided by the present invention, a circle of double-sided adhesive tape for folding and sealing the packaging composite film body into a sealing bag may be disposed on an inner side surface of the packaging composite film body, the circle surrounded by the double-sided adhesive tape has the adsorption region, and the arrangement shape of the double-sided adhesive tape is symmetrical. Like this, the user can be with packing complex film package product fast, particularly, during the use, the user tears sticker or pad pasting on the double faced adhesive tape, puts the article of waiting to save in the circle, then folds the packing complex film, makes the complete parcel of packing complex film wait to save article to through double faced adhesive tape involution bagging-off, accomplish sealedly. Further, still be provided with the envelope membrane of one deck protection adsorption zone efficiency on the medial surface of packing complex film body, during the use, the user will seal the membrane and tear off can. Of course, the double-sided adhesive tape can be replaced by a sealing strip, and the sealing strip can be used for repeatedly opening and sealing, so that the bag is not easy to tear when being opened. Therefore, the use scene of the packaging composite film is wider, and the packaging composite film is suitable for temporarily storing various articles. For example, in the storage of food in a life scene, for example, cut apples, the storage is carried out by using a packaging composite film taking an adsorbent as a deoxidizer, so that the color of the apples can be effectively ensured, and the apples can be prevented from being blackened. For example, in a laboratory setting, some precision instruments may be stored in a package conforming to a film with an adsorbent as a desiccant.
As shown in fig. 3 and 4, the present invention also provides a packaging bag, which comprises a bag body made of the packaging composite film, wherein the bag body is generally made by heat sealing, and an inner breathable layer of an absorption area of the packaging composite film is positioned at the inner side of the bag body. The packaging bag can be used for directly packaging products by manufacturers, and does not need to purchase adsorbents such as an added external drying agent, the functions of the packaging bag can be expanded, the packaging bag can wrap the whole goods to enable the adsorbents (drying agents) to carry out (moisture-proof) protection on the products in an all-round way, the placing mode and the placing position of the adsorbents (drying agents) are not limited by a packaging method, the products can be directly placed into the packaging bag to be sealed, the packaging process can be completed, the packaging bag is convenient and fast, the production process is reduced, the production cost is reduced, the improvement of the production quality is facilitated, the situation that the adsorbents (drying agents) are eaten by children by mistake can be effectively avoided, in addition, the products in the packaging bag also have a certain heat preservation effect.
In conclusion, the invention can expand the function of the packaging bag, the whole goods can be wrapped by the packaging bag, so that the adsorbent (desiccant) can comprehensively protect the product (moisture-proof), the placing mode and the position of the adsorbent (desiccant) are not limited by the packaging method, the product can be directly placed into the packaging bag to be sealed, the packaging process can be completed, the convenience and the rapidness are realized, the production process is reduced, the production cost is reduced, the production quality is improved, the occurrence of the situation that the adsorbent (desiccant) is eaten by children by mistake can be effectively avoided, and in addition, the invention also has a certain heat preservation effect on the product in the packaging bag.
Moreover, a circle of double faced adhesive tape used for folding and sealing the packaging composite film body into a sealing bag can be arranged on the inner side face of the packaging composite film body, the adsorption area is arranged in a circle surrounded by the double faced adhesive tape, and the arrangement shape of the double faced adhesive tape is symmetrical. Like this, the user can be with packing complex film package product fast, particularly, during the use, the user tears sticker or pad pasting on the double faced adhesive tape, puts the article of waiting to save in the circle, then folds the packing complex film, makes the complete parcel of packing complex film wait to save article to through double faced adhesive tape involution bagging-off, accomplish sealedly. Further, still be provided with the envelope membrane of one deck protection adsorption zone efficiency on the medial surface of packing complex film body, during the use, the user will seal the membrane and tear off can. Therefore, the use scene of the packaging composite film is wider, and the packaging composite film is suitable for temporarily storing various articles. For example, in the storage of food in a life scene, for example, cut apples, the storage is carried out by using a packaging composite film taking an adsorbent as a deoxidizer, so that the color of the apples can be effectively ensured, and the apples can be prevented from being blackened. For example, in a laboratory setting, some precision instruments may be stored in a package conforming to a film with an adsorbent as a desiccant.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.

Claims (10)

1. The utility model provides a packaging composite membrane, includes the packaging composite membrane body, its characterized in that, be provided with the adsorption zone on the packaging composite membrane body, the adsorption zone is including the outside isolation layer that is used for keeping apart the outside air, the middle adsorbed layer that includes the adsorbent and the ventilative layer of inboard that supplies inboard air with middle adsorbed layer circulation, the outside isolation layer sets up in the outside, the ventilative layer of inboard sets up in the inboard, middle adsorbed layer set up in between outside isolation layer and the ventilative layer of inboard.
2. The packaging composite film of claim 1 wherein the intermediate adsorbent layer comprises a loose structure layer, the adsorbent is adsorbent particles, and the adsorbent particles are dispersed within the loose structure layer.
3. The packaging composite film of claim 1 wherein the adsorbent region further comprises a loose, flexible smooth wrapping separating an outer barrier layer from an intermediate adsorbent layer, the smooth wrapping being disposed between the outer barrier layer and the intermediate adsorbent layer and/or between the intermediate adsorbent layer and an inner gas permeable layer.
4. The packaging composite film of claim 1 wherein the intermediate adsorbent layer comprises a loose, flexible smooth wrapping layer to which the adsorbent is attached.
5. The packaging composite film of claim 4 wherein the adsorbent is attached to the smooth wrapping layer in a crystalline form.
6. The packaging composite film as claimed in claim 2, wherein the loose structure layer is woven by using a loose-structure fiber material.
7. A packaging composite film according to claim 3 or 4 wherein the smooth wrapping layer is woven from compressed cotton.
8. The packaging composite film of claim 1 wherein the adsorbent is one or more of a desiccant, a deoxidizer, an ethylene absorbent, and a deodorizer.
9. The packaging composite film according to any one of claims 1 to 6 or 8, wherein the inner side of the packaging composite film body is provided with a double-sided tape or a sealing strip for folding and sealing the packaging composite film body into a sealed bag.
10. A packaging bag comprising a bag body, wherein said bag body is made of the packaging laminate film according to any one of claims 1 to 9.
CN202010768677.5A 2020-08-03 2020-08-03 Packaging composite film and packaging bag Pending CN111993715A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010768677.5A CN111993715A (en) 2020-08-03 2020-08-03 Packaging composite film and packaging bag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010768677.5A CN111993715A (en) 2020-08-03 2020-08-03 Packaging composite film and packaging bag

Publications (1)

Publication Number Publication Date
CN111993715A true CN111993715A (en) 2020-11-27

Family

ID=73462713

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010768677.5A Pending CN111993715A (en) 2020-08-03 2020-08-03 Packaging composite film and packaging bag

Country Status (1)

Country Link
CN (1) CN111993715A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113211898A (en) * 2021-05-28 2021-08-06 海南赛诺实业有限公司 Coating film for food packaging
CN113400753A (en) * 2021-05-17 2021-09-17 李素文 Strong adsorbability PET membrane of sclerosis degree

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113400753A (en) * 2021-05-17 2021-09-17 李素文 Strong adsorbability PET membrane of sclerosis degree
CN113211898A (en) * 2021-05-28 2021-08-06 海南赛诺实业有限公司 Coating film for food packaging

Similar Documents

Publication Publication Date Title
US4485133A (en) Oxygen absorbent packaging
JP3252771B2 (en) Desiccant container
CN111993715A (en) Packaging composite film and packaging bag
JP2926724B2 (en) Oxygen absorber storage bag and cutting method thereof
CN212289023U (en) Packaging composite film and packaging bag
JP2862274B2 (en) Manufacturing method of water-absorbing sheet
JP5174476B2 (en) Alcohol volatilizer
JPH06100045A (en) Cut vegetable packaging bag
JP2004244036A (en) Quality keeping agent package
CN212149890U (en) High-transparency back film and deoxidizer packaging bag with same
JP5420367B2 (en) Alcohol volatilizer
JPH0235656Y2 (en)
JPH10309427A (en) Deoxidizer composition, deoxidizer wrapped body, and method for preserving article
JPS6214940A (en) Preparation of oxygen scavenger
CN212149891U (en) High-permeability film for rapid packaging and packaging bag with high-permeability film
CN220375294U (en) Oxygen indication type bagged deoxidizer
CN211544561U (en) Packing box (Chinese character' jiangsu
JPH02229522A (en) Package of dehumidifying agent
JPH0610790Y2 (en) Freshness maintaining material for fruits and vegetables
JP5492514B2 (en) Alcohol volatilizer
JPH03304B2 (en)
JP3034065B2 (en) Breathable packaging material
JPH026129A (en) Packaging film for deoxidizer
JP2815384B2 (en) Water absorbing sheet with functionality
JPH05310274A (en) Package with oxygen absorber

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