CN220501428U - Composite non-woven fabric fruit and vegetable fresh-keeping bag - Google Patents
Composite non-woven fabric fruit and vegetable fresh-keeping bag Download PDFInfo
- Publication number
- CN220501428U CN220501428U CN202321147680.0U CN202321147680U CN220501428U CN 220501428 U CN220501428 U CN 220501428U CN 202321147680 U CN202321147680 U CN 202321147680U CN 220501428 U CN220501428 U CN 220501428U
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- bag body
- outer layer
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- 235000012055 fruits and vegetables Nutrition 0.000 title claims abstract description 32
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 11
- 238000009423 ventilation Methods 0.000 claims abstract description 37
- 238000010521 absorption reaction Methods 0.000 claims abstract description 20
- 239000003755 preservative agent Substances 0.000 claims abstract description 19
- 230000002335 preservative effect Effects 0.000 claims abstract description 19
- 238000001179 sorption measurement Methods 0.000 claims abstract description 15
- 235000013399 edible fruits Nutrition 0.000 claims abstract description 11
- 230000014759 maintenance of location Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims 1
- 235000013311 vegetables Nutrition 0.000 claims 1
- 244000052616 bacterial pathogen Species 0.000 abstract description 6
- 230000004060 metabolic process Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 230000006378 damage Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000003958 fumigation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004200 microcrystalline wax Substances 0.000 description 2
- 235000019808 microcrystalline wax Nutrition 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 2
- 229940001584 sodium metabisulfite Drugs 0.000 description 2
- 235000010262 sodium metabisulphite Nutrition 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- XOCUXOWLYLLJLV-UHFFFAOYSA-N [O].[S] Chemical compound [O].[S] XOCUXOWLYLLJLV-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Packages (AREA)
Abstract
The application relates to a composite non-woven fabric fruit and vegetable fresh-keeping bag, which comprises a cavity bag body with an open upper end and a tying mouth, wherein the bag body comprises an inner layer and an outer layer, and the bag body is divided into a release area, a ventilation area, a retention area and an adsorption area from top to bottom;a base layer with a preservative is filled between the inner layer and the outer layer where the release area is located; an inner moisture absorption layer is arranged on the inner side of the inner layer of the ventilation area, and an outer moisture absorption layer is arranged on the outer side of the outer layer of the ventilation area; an adsorption layer is filled between the inner layer and the outer layer of the adsorption zone. The application can lead the inside of the bag body to reach SO 2 The gas fumigating environment controls the growth of pathogenic bacteria of fruits and vegetables, regulates the physiological metabolism of fruits, inhibits the browning of fruit stalks, maintains the quality of the picked fruits and vegetables, and reduces the residual hazard.
Description
Technical Field
The utility model relates to the field of preservation, in particular to a composite non-woven fabric fruit and vegetable preservation bag.
Background
The non-woven fabric lining bag has the advantages of ventilation, environmental protection, flexibility, no toxicity, no smell and the like, and is widely used as a lining bag in a box in packaging, storing, transporting and preserving fruits and vegetables after picking. The lining bag can reduce secondary pollution of external environmental factors to fruits and vegetables and reduce mechanical damage. However, in the boxing, transporting and storing stages of fruits and vegetables, the lining bag only plays roles of physical barrier and fruit wrapping, and external pathogenic bacteria can still directly contact with the fruits and vegetables through the pores of the non-woven fabrics, so that the fruits and vegetables are rotten after being picked. Because the non-woven fabrics are easy to absorb moisture and do not have bacteriostasis, the fluctuation of humidity and temperature can cause that the water vapor in the fruits can not be rapidly dispersed from the inner lining bag, once the fruits are rotten due to mechanical injury or latent diseases, sufficient water vapor in the inner lining provides a proper growth environment for rapid propagation of pathogenic bacteria, quality fission after fruit and vegetable picking is accelerated, and economic loss is caused.
In order to solve the problems, the prior art adopts the method that SO can be generated when water vapor is encountered in the lining bag 2 Preservative paper (pad) using SO 2 The gas kills germs around the fruits and vegetables to maintain the quality of the fruits and vegetables for short-term storage. This approach has the common trouble of SO 2 The gas release amount is difficult to control, the dosage is too small, and the fruits and vegetables are easy to dry, brown stain and rot; the dosage is too large, the fruit and vegetable stalks are fresh green and have low decay rate, but the fruit grains are easy to bleach, and the residual quantity is too high, so that the fruit and vegetable stalks are harmful to human bodies. But needs to be added when in use in order to prolong the slow release time of the preservative paperExcessive preservative, how to control SO 2 The release rate of the gas is not enough to enable SO in the lining bag 2 Too high a gas concentration and how excess SO is discharged 2 The gas is not left as a residue, which is a technical problem to be solved.
Disclosure of Invention
The utility model provides a composite non-woven fabric fruit and vegetable fresh-keeping bag which can control SO (sulfur dioxide) while solving the problem that external water permeates into the bag 2 The gas release rate, the slow release time of the preservative is prolonged, and the possible excessive SO is avoided 2 The gas is absorbed and released in time, so that the fresh-keeping effect is improved, the fresh-keeping cost is reduced, and the food safety is ensured.
The object of the present application is achieved in that: the composite non-woven fabric fruit and vegetable fresh-keeping bag comprises a hollow bag body with an open upper end and a tying opening, wherein the bag body comprises an inner layer and an outer layer, and is divided into a release area, a ventilation area, a retention area and an adsorption area from top to bottom; a base layer with a preservative is filled between the inner layer and the outer layer where the release area is located; an inner moisture absorption layer is arranged on the inner side of the inner layer of the ventilation area, and an outer moisture absorption layer is arranged on the outer side of the outer layer of the ventilation area; an adsorption layer is filled between the inner layer and the outer layer of the adsorption zone.
The ventilation area is provided with a plurality of ventilation holes penetrating the inner moisture absorption layer, the inner layer, the outer layer and the outer moisture absorption layer.
Another section of ventilation area is arranged at the bag body at the upper side of the release area, an outer moisture absorption layer is arranged at the outer side of the outer layer of the section of ventilation area, and a plurality of ventilation holes penetrating through the inner layer, the outer layer and the outer moisture absorption layer are formed at the ventilation area.
The release area is provided with a plurality of ventilation holes penetrating through the inner layer and the outer layer, the outer port of the ventilation holes is internally covered with a sealing cover which is integrally connected with the outer layer, and the sealing cover is of a thin layer structure.
The upper end of the release area is positioned at a position not exceeding two thirds of the height of the bag body, and the lower end of the release area is positioned at a position not lower than one third of the height of the bag body.
The outer layer of the non-woven fruit and vegetable fresh-keeping bag provided by the utility model adopts the waterproof film or the waterproof breathable film, so that most of external water vapor can be prevented from entering the bag body, and the water vapor can be prevented from entering the bag bodyAdding a base layer with a preservative, wherein the preservative reacts with water to release SO (SO) 2 The gas has good sterilization and fresh-keeping effects on fruits and vegetables, and the base layer with the fresh-keeping agent is utilized to further delay the contact speed of moisture and the fresh-keeping agent and avoid SO (sulfur-oxygen) 2 The gas is released rapidly, the consumption of the preservative is controlled accurately, the damage to fruits caused by abuse of the preservative is prevented, and the food safety is ensured. The addition of the base layer with the preservative reduces the links for placing the preservative paper and reduces the labor and material cost. The top tying is utilized to lead the inside of the bag body to reach SO 2 The gas fumigating environment controls the growth of pathogenic bacteria of fruits and vegetables, regulates the physiological metabolism of fruits, inhibits the browning of fruit stalks and maintains the quality of the picked fruits and vegetables. The bottom adsorption layer can remove excessive SO 2 And the gas is absorbed, so that the residual hazard is reduced.
Drawings
The specific structure of the present application is given by the following figures and examples:
FIG. 1 is a schematic structural view of the present application;
FIG. 2 is a schematic structural view of embodiment 2 of the present application;
FIG. 3 is a schematic layer diagram of a release zone;
fig. 4 is a schematic layer diagram of the venting zone.
Legend: 1. tying, 2, a ventilation area, 3, a release area, 4, a retention area, 5, an adsorption area, 6, an outer layer, 7, ventilation holes, 8, a sealing cover, 9, an inner layer, 10, a base layer, 11, a preservative, 12, an outer moisture absorption layer, 13 and an inner moisture absorption layer.
Description of the embodiments
The present application is not limited by the following examples, and specific embodiments may be determined according to technical solutions and practical situations of the present application.
In the present utility model, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of up, down, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The utility model is further described below with reference to examples and figures, in which: as shown in figures 1, 3 and 4, the composite non-woven fruit and vegetable fresh-keeping bag comprises a hollow bag body with an open upper end and provided with a tying 1, wherein the bag body comprises an inner layer 8 and an outer layer 6, and the bag body is divided into a ventilation zone 2, a release zone 3, a ventilation zone 2, a retention zone 4 and an adsorption zone 5 from top to bottom; a base layer 10 with a preservative 11 is filled between the inner layer 9 and the outer layer 6 where the release area 3 is positioned; an outer moisture absorption layer 12 is arranged outside the outer layer 6 of the upper ventilation zone 2; an inner moisture absorption layer 13 is arranged on the inner side of the inner layer 9 of the lower ventilation zone 2, and an outer moisture absorption layer 12 is arranged on the outer side of the outer layer 6 of the lower ventilation zone 2; an adsorption layer is filled between the inner layer 9 and the outer layer 6 of the adsorption zone 5.
Furthermore, the inner layer 9 is a chemical fiber non-woven fabric layer, the outer layer 6 is a waterproof film or a waterproof breathable film, and the materials of the inner layer 9 and the outer layer 6 are all in the prior art, which is not the point of the present application and will not be described in detail here. The preservative 11 is sodium metabisulfite powder, the base layer 10 is microcrystalline wax, the microcrystalline wax has certain water permeability, and the water permeated by the inner layer 9 can enter the base layer 10 and be gradually fused with the preservative 11 more slowly, SO that the contact speed of the water and the sodium metabisulfite powder is controlled, and SO is avoided 2 The purpose of the rapid release of gas. The inner layer 9, the outer layer 6 and the base layer 10 can be formed by a film spraying and hot pressing process, and the connecting mode is simple and convenient to operate.
Further, set up a plurality of bleeder vents 7 that run through in the ventilative district 3 department and inhale wet layer 13, inlayer 9, skin 6, outer wet layer 12 can be with the steam absorption around the bag body, prevent that external steam from getting into the bag body, interior wet layer 13 can be to the internal steam of bag, bleeder vent 7 can distribute away the internal unnecessary steam of bag, through the combined action of outer wet layer 12, interior wet layer 13 and bleeder vent 7, humidity and temperature in the regulation bag body for can not stay in the bag body and have more steam to provide suitable growing environment for the rapid propagation of pathogenic bacteria. The pore diameter of the air holes 7 is 2.5mm-3mm, and the pore distance between the air holes 7 is 15mm-20mm.
Further, a plurality of ventilation holes 7 penetrating through the inner layer 9 and the outer layer 6 are arranged at the release area 3, a sealing cover 8 integrally connected with the outer layer 6 is sealed in the outer port of the ventilation holes 7,the closure 8 is of a thin layer construction so that the closure 8 is easily pierced. The moisture content in the release zone 3 can be regulated by puncturing the closure cap 8 to prevent SO 2 The gas is released excessively. The cover 8 is a thin layer made of polyethylene material. The cover 8 is heat-sealable to the outer layer 6.
Further, the upper end of the releasing area 2 is positioned at a position not more than two thirds of the height of the bag body, and the lower end is positioned at a position not less than one third of the height of the bag body. The arrangement of this structure is because: 1. if the release area 2 is located at a higher position, the moisture is easy to flow downwards along the surface of the fruit due to the sealing of the bag body, SO that the moisture at the upper part of the bag body is less, the moisture at the release area 2 is difficult to permeate the base layer 9, the preservative 10 is insufficient in contact with the moisture, and the SO can be caused 2 The gas release effect is not obvious or is not released, and the fresh-keeping effect cannot be achieved; 2. due to SO 2 The gas is heavier than air, SO 2 The gas is settled downwards, if the release zone 2 is positioned at a lower position, fruits and vegetables positioned at the upper layer can not be mixed with SO 2 The gas contact affects the fresh-keeping effect.
Example 1 in use, fruit and vegetable are placed in a bag, and as the water vapor in the bag increases, a portion of the water vapor begins to permeate from the inner layer 9 into the base layer 10 and gradually comes into contact with the preservative 11, thereby slowly releasing SO 2 Gas, released SO 2 The gas moves downwards, and the fumigation effect is achieved in the bag body. Excess moisture can be emitted from the breathable zone 3.
As shown in FIG. 3, to enhance the fumigation effect, but not to obtain SO 2 The excessive gas reaches the retention zone 4 and then is accumulated to prevent fruits and vegetables in the zone from being bleached, SO that the height of the retention zone 4 is not more than 1cm, and the adsorbent in the adsorption zone 5 arranged under the retention zone 4 can be used for treating SO 2 The gas is absorbed, the adsorbent can adopt active carbon, SO that the SO in the bag body can be ensured by stacking and absorbing 2 Gas concentration and SO prevention 2 The gas concentration is excessive.
Example 2, as shown in figure 2, since the upper moisture content in the pouch is generally less, the venting zone 2 above the release zone 3 can be eliminated and the moisture content in this zone can be adjusted by only the cover 8 on the release zone 3. The remainder was the same as in example 1.
The foregoing description is provided for clarity of illustration only and is not intended to limit the embodiments of the present application. Obvious changes and modifications which are extended by the technical proposal of the application are still within the protection scope of the application.
Claims (6)
1. The utility model provides a compound non-woven fabrics fruit vegetables freshness protection package, includes that the upper end is open and is provided with the cavity bag body of tying, its characterized in that: the bag body comprises an inner layer and an outer layer, and is divided into a release area, a ventilation area, a retention area and an adsorption area from top to bottom; a base layer with a preservative is filled between the inner layer and the outer layer where the release area is located; an inner moisture absorption layer is arranged on the inner side of the inner layer of the ventilation area, and an outer moisture absorption layer is arranged on the outer side of the outer layer of the ventilation area; an adsorption layer is filled between the inner layer and the outer layer of the adsorption zone.
2. The composite non-woven fruit and vegetable fresh-keeping bag according to claim 1, wherein: the ventilation area is provided with a plurality of ventilation holes penetrating the inner moisture absorption layer, the inner layer, the outer layer and the outer moisture absorption layer.
3. The composite non-woven fruit and vegetable fresh-keeping bag according to claim 1 or 2, wherein: another section of ventilation area is arranged at the bag body at the upper side of the release area, an outer moisture absorption layer is arranged at the outer side of the outer layer of the section of ventilation area, and a plurality of ventilation holes penetrating through the inner layer, the outer layer and the outer moisture absorption layer are formed at the ventilation area.
4. The composite non-woven fruit and vegetable fresh-keeping bag according to claim 1 or 2, wherein: the release area is provided with a plurality of ventilation holes penetrating through the inner layer and the outer layer, the outer port of the ventilation holes is internally covered with a sealing cover which is integrally connected with the outer layer, and the sealing cover is of a thin layer structure.
5. A composite non-woven fruit and vegetable fresh-keeping bag according to claim 3, wherein: the release area is provided with a plurality of ventilation holes penetrating through the inner layer and the outer layer, the outer port of the ventilation holes is internally covered with a sealing cover which is integrally connected with the outer layer, and the sealing cover is of a thin layer structure.
6. A composite non-woven fruit and vegetable fresh-keeping bag according to claim 3, wherein: the upper end of the release area is positioned at a position not exceeding two thirds of the height of the bag body, and the lower end of the release area is positioned at a position not lower than one third of the height of the bag body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321147680.0U CN220501428U (en) | 2023-05-13 | 2023-05-13 | Composite non-woven fabric fruit and vegetable fresh-keeping bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321147680.0U CN220501428U (en) | 2023-05-13 | 2023-05-13 | Composite non-woven fabric fruit and vegetable fresh-keeping bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220501428U true CN220501428U (en) | 2024-02-20 |
Family
ID=89879556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321147680.0U Active CN220501428U (en) | 2023-05-13 | 2023-05-13 | Composite non-woven fabric fruit and vegetable fresh-keeping bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220501428U (en) |
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2023
- 2023-05-13 CN CN202321147680.0U patent/CN220501428U/en active Active
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