CN212289023U

CN212289023U - Packaging composite film and packaging bag

Info

Publication number: CN212289023U
Application number: CN202021581616.XU
Authority: CN
Inventors: 苏卓欣
Original assignee: Super Dry Desiccant Shenzhen Co ltd
Current assignee: Super Dry Desiccant Shenzhen Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-01-05
Anticipated expiration: 2030-08-03

Abstract

The utility model provides a pair of packaging composite membrane, including the packaging composite membrane body, be provided with the adsorption zone on the packaging composite membrane body, the adsorption zone including the outside isolation layer that is used for keeping apart the outside air, include the middle adsorbed layer of adsorbent and supply inboard air with the inboard ventilative layer of middle adsorbed layer circulation, the outside isolation layer sets up in the outside, inboard ventilative layer sets up in the inboard, middle adsorbed layer set up in between outside isolation layer and the inboard ventilative layer. The utility model discloses with adsorbent (drier) and the integration setting of wrapping bag membrane, not only can extend the function of wrapping bag, need not receive the mode of putting and the position of packaging method restriction adsorbent (drier) again in addition, can directly put into the wrapping bag the inside with the product and seal and can accomplish the packaging process, convenient and fast has reduced production processes, has reduced manufacturing cost, is favorable to improving production quality, can also effectively avoid adsorbent (drier) to take place by the condition that children ate by mistake.

Description

Packaging composite film and packaging bag

Technical Field

The utility model belongs to the technical field of the packing technique and specifically relates to a packaging composite film and wrapping bag are related to.

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.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a packaging composite film and a packaging bag.

For solving the technical problem, the utility model discloses following technical scheme has been taken:

the utility model provides a packaging composite membrane, including the packaging composite membrane body, be provided with the adsorption zone on the packaging composite membrane body, the adsorption zone including the outside isolation layer that is used for keeping apart the outside air, include the middle adsorbed layer of adsorbent and supply inboard air with the inboard ventilative layer of middle adsorbed layer circulation, the outside isolation layer sets up in the outside, inboard ventilative layer sets up in the inboard, middle adsorbed layer set up in between outside isolation layer and the inboard ventilative 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 utility model also provides a packaging bag, comprises a bag body, the bag body is by above the packaging composite film make.

Compared with the prior art, the utility model provides a pair of packaging composite membrane, including the packaging composite membrane body, be provided with the adsorption zone on the packaging composite membrane body, the adsorption zone including the outside isolation layer that is used for keeping apart the outside air, include the middle adsorbed layer of adsorbent and supply inboard air with the inboard ventilative layer of middle adsorbed layer circulation, the outside isolation layer sets up in the outside, inboard ventilative layer sets up in the inboard, middle adsorbed layer set up in between outside isolation layer and the inboard ventilative layer. The utility model discloses set up adsorbent (drier) and packaging bag membrane integration, not only can extend the function of wrapping bag, the wrapping bag can wrap up whole goods and make adsorbent (drier) can be all-round carry out (dampproofing) protection to the product, and need not receive the mode of putting and the position of packaging method restriction adsorbent (drier) again, can directly put into the wrapping bag the inside with the product and seal and can accomplish the packaging procedure, convenient and fast, the production process has been reduced, the production cost is reduced, be favorable to improving production quality, can also effectively avoid adsorbent (drier) to take place by the condition that children ate by mistake.

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 the packaging composite film provided by the present invention.

Fig. 3 is a schematic structural diagram of the packaging bag according to the present invention.

Fig. 4 is a schematic structural diagram of the packaging bag according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in 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 utility model provides a pair of packaging composite film, including the packaging composite film body, be provided with the adsorption zone on the packaging composite film body, the adsorption zone including the outside isolation layer 1 that is used for keeping apart the outside air, include middle adsorbed layer 2 of adsorbent and supply inboard air with the ventilative layer 3 of inboard of middle adsorbed layer 2 circulation, outside isolation layer 1 sets up in the outside, the ventilative layer 3 of inboard sets up in the inboard, middle adsorbed layer 2 set up in between outside isolation layer 1 and the ventilative layer 3 of inboard. 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, the utility model provides a packaging composite film, middle adsorbed layer 2 includes loose structural layer, the adsorbent is adsorption granules, adsorption granules scatter in the loose structural 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. Further, the utility model provides a packaging composite film, loose structural layer adopts the loose fibrous material of structure to weave and forms. 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, the utility model provides a packaging composite film, level and smooth parcel layer 4 adopts the compression cotton to weave and forms, and the compression cotton is also known as compression sponge, is the product of making with the polyvinyl alcohol of a high density, high rigidity, and its characteristic is continuous porous structure, and polyvinyl alcohol (PVA) has obvious absorptivity and water-holding capacity, mainly is the hydrophilicity of material itself and continuous porous molecular's structure for polyvinyl alcohol (PVA) material is favorable to using at the dehydration, absorbs water and filters. The drying effect of the product is further improved due to the efficacy of physical adsorption of water vapor.

Preferably, in another preferred embodiment, 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, preferably, the inner breathable layer 3 of the composite packaging film of the present invention 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, the utility model provides a packaging composite film, in other embodiments, can be provided with the double faced adhesive tape that the round was used for making the folding involution of packaging composite film body become the sealing bag on the medial surface of packaging composite film body, have in the circle that the double faced adhesive tape encloses the adsorption zone, the shape of arranging of 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. 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 further provides a packaging bag, which comprises a bag body made of the packaging composite film, wherein the bag body is made of a heat-sealing bag, and the inside air-permeable layer of the absorption area of the packaging composite film is located inside 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.

To sum up, the utility model discloses not only can extend the function of wrapping bag, the wrapping bag can wrap up whole goods and make adsorbent (drier) can be all-round carry out (dampproofing) protection to the product, and need not receive packing method restriction adsorbent (drier) put mode and position again, can directly put into the wrapping bag the inside with the product and seal and can accomplish the packaging procedure, and is convenient and fast, and the production processes has been reduced, and the production cost is reduced, and be favorable to improving production quality, can also effectively avoid adsorbent (drier) to take place by the condition that children ate by mistake, in addition, still possess certain heat preservation effect to the product in it.

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 equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims

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.