CN212149890U - High-transparency back film and deoxidizer packaging bag with same - Google Patents
High-transparency back film and deoxidizer packaging bag with same Download PDFInfo
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- CN212149890U CN212149890U CN202020413694.2U CN202020413694U CN212149890U CN 212149890 U CN212149890 U CN 212149890U CN 202020413694 U CN202020413694 U CN 202020413694U CN 212149890 U CN212149890 U CN 212149890U
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Abstract
The utility model discloses a high-permeability back membrane, which comprises a non-woven fabric layer, a polypropylene high-permeability membrane and a breathable polyethylene membrane layer which are compounded in sequence; the non-woven fabric layer is a polyester filament plain non-woven fabric, the gram weight is 30-60 g/m2, and the thickness is 30-60 um; the polypropylene high-permeability membrane has a micropore structure, and the space between pores is 0.05-0.07 um; the thickness of the polypropylene high-permeability film is 25-30 um; the air permeability of the air-permeable polyethylene film layer is 100-500 sec/100ml, and the moisture permeability is 1500-2500 g/m2 & 24 h; the thickness of ventilative polyethylene film layer is 25 ~ 45 um. The high-permeability back film of the utility model has simple structure, convenient use, good air permeability, no powder leakage, suitability for food deoxidizer packaging and good moisture permeability; the heat sealing device is high-temperature resistant, and the phenomenon of adhesion to heat sealing mechanical equipment can not occur during heat sealing; also has good mechanical strength, tear resistance and comprehensive mechanical property.
Description
Technical Field
The utility model discloses membrane material and packing technical field, concretely relates to high notacoria of passing through and have deoxidier packaging bag of this high notacoria of passing through.
Background
The deoxidizer is also called an oxygen scavenger and an oxygen absorbent, is an additive capable of absorbing oxygen and slowing down the oxidation of food, and is a new product adopted in the food preservation at present. It is a chemical mixture which can easily react with free oxygen or dissolved oxygen, and is placed in a sealed paper bag with a certain air permeability and strength, and is sealed and packaged together with food in the food bag like desiccant bag, so that it can remove the oxygen remained in the air in the food bag, can prevent the food from changing colour, deteriorating quality and rancidity of oil and fat, and also has the action of inhibiting growth of mould, aerobic bacteria and grain pests.
At present, the deoxidizer is not only used for keeping food quality, but also used for preserving and preventing rust of grains, feed, medicines, clothes, fur, precision instruments and other articles. However, the deoxidation preservation effect of the existing food bag is not visible, and oxygen in the food bag cannot be visually observed, so that people often eat deteriorated food by mistake.
For example, 2018.02.13 discloses a patent of publication No. CN207001250U entitled "an indicating integral type deoxidizer packaging material", which discloses an indicating integral type deoxidizer packaging material comprising a packaging paper body including an inner film compounded on a bottom surface of a PET layer by an adhesive glue, a PET layer and an outer film compounded on a top surface of the PET layer by an adhesive glue, the outer film having an indicating pattern for detecting and indicating an oxygen content. The indication pattern arranged on the outer membrane of the deoxidizer packaging material can detect the oxygen content in the food bag filled with the deoxidizer and display the oxygen content through colors, so that the deoxidizer packaging material is convenient for users to identify and improves the edible safety.
The materials (breathable films) for packaging the deoxidant and the deoxidant packaging bag at present have the following problems:
1. the air permeability is not good enough, or powder is easy to leak, the safety is poor, and the food cannot be used in the food industry;
2. or the heat sealing performance is poor, or the phenomenon of sticking heat sealing equipment is easy to occur due to no high temperature resistance in the heat sealing process and the like, so that the rapid packaging of the deoxidizer cannot be carried out;
3. the water vapor transmission capacity is low, and the water absorption requirement in the deoxidation process cannot be met;
4. the mechanical strength is poor, the damage is easy, and the service life is short.
Based on the circumstances, the utility model provides a high notacoria that passes through and have deoxidier packaging bag of this high notacoria that passes through can effectively solve above problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high notacoria that passes through and have deoxidier packaging bag of this high notacoria that passes through. The special non-woven fabric layer, the polypropylene high-permeability film and the breathable polyethylene film have optimized 3-layer structure, the obtained high-permeability back film has simple structure, convenient use, good air permeability and no powder leakage, is suitable for food deoxidizer packaging, has good vapor permeability (high permeability), and has good barrier effect (waterproof) on liquid water; the heat sealing device is high-temperature resistant, and the phenomenon of adhesion to heat sealing mechanical equipment can not occur during heat sealing; also has good mechanical strength, tear resistance and comprehensive mechanical property.
The utility model discloses a following technical scheme realizes:
a high-permeability back membrane comprises a non-woven fabric layer, a polypropylene high-permeability membrane and a breathable polyethylene membrane layer which are sequentially compounded;
the non-woven fabric layer is a polyester filament plain non-woven fabric, the gram weight is 30-60 g/m2, and the thickness is 30-60 um;
the polypropylene high-permeability membrane has a micropore structure, and the space between pores is 0.05-0.07 um; the thickness of the polypropylene high-permeability film is 25-30 um;
the air permeability of the air-permeable polyethylene film layer is 100-500 sec/100ml, and the moisture permeability is 1500-2500 g/m2 & 24 h; the thickness of ventilative polyethylene film layer is 25 ~ 45 um.
The special non-woven fabric layer, the polypropylene high-permeability film and the breathable polyethylene film have optimized 3-layer structure, the obtained high-permeability back film has simple structure, convenient use, good air permeability and no powder leakage, is suitable for food deoxidizer packaging, has good vapor permeability (high permeability), and has good barrier effect (waterproof) on liquid water; the heat sealing device is high-temperature resistant, and the phenomenon of adhesion to heat sealing mechanical equipment can not occur during heat sealing; also has good mechanical strength, tear resistance and comprehensive mechanical property.
Preferably, the non-woven fabric layer, the polypropylene high-permeability film and the breathable polyethylene film layer are sequentially compounded through the adhesive.
Preferably, the non-woven fabric layer is a PET filament plain non-woven fabric.
Preferably, the gram weight of the non-woven fabric layer is 40-50 g/m2, and the thickness is 40-50 um;
the polypropylene high-permeability membrane has a micropore structure, and the space between pores is 0.05-0.07 um; the thickness of the polypropylene high-permeability film is 26-28 um;
the air permeability of the air-permeable polyethylene film layer is 220-380 sec/100ml, and the moisture permeability is 1900-2200 g/m 2-24 h; the thickness of ventilative polyethylene film layer is 30 ~ 38 um.
The invention also provides a deoxidizer packaging bag which comprises a facial mask and a high-transmittance back film; the face film is jointed with the high-permeability back film and is heat-sealed at the opening edge; the high-transparency back film is the high-transparency back film; the facial mask is a PET/LLDPE composite film.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the special non-woven fabric layer, the polypropylene high-permeability film and the breathable polyethylene film have optimized 3-layer structure, the obtained high-permeability back film has simple structure, convenient use, good air permeability and no powder leakage, is suitable for food deoxidizer packaging, has good vapor permeability (high permeability), and has good barrier effect (waterproof) on liquid water; the heat sealing device is high-temperature resistant, and the phenomenon of adhesion to heat sealing mechanical equipment can not occur during heat sealing; also has good mechanical strength, tear resistance and comprehensive mechanical property.
Drawings
Fig. 1 is a schematic structural view of the high-transmittance back film of the present invention;
FIG. 2 is a schematic view of the deoxidizer packaging bag of the present invention;
fig. 3 is a rear view of the deoxidizer packaging bag of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
In the utility model, the PET is polyethylene terephthalate; PE is polyethylene.
Example 1:
as shown in fig. 1, a high-permeability back membrane comprises a non-woven fabric layer 1, a polypropylene high-permeability membrane 2 and a breathable polyethylene membrane layer 3 which are sequentially compounded;
the non-woven fabric layer 1 is a polyester filament plain non-woven fabric, the gram weight is 30-60 g/m2, and the thickness is 30-60 um;
in the structure, the non-woven fabric layer 1 is a polyester filament plain non-woven fabric, is good in breathability and moisture permeability, is high-temperature resistant, cannot be bonded on heat-sealing mechanical equipment when being subjected to heat sealing, is high in mechanical strength and tear-resistant, and is not easy to damage in the using process.
In the structure, the gram weight of the non-woven fabric layer is 30-60 g/m2, and the thickness of the non-woven fabric layer is 30-60 um; not only meets the use requirements of mechanical property and the like of the product (high-transparency back film), but also saves raw materials, and the cost performance of the product is optimal.
The polypropylene high-permeability membrane 2 has a micropore structure, and the space between pores is 0.05-0.07 um; the thickness of the polypropylene high-permeability film 2 is 25-30 um;
the polypropylene high-permeability film with the structure has good air permeability and moisture permeability, good water vapor permeability (high permeability) and good barrier effect (waterproof) on liquid water.
In the structure above the thickness of polypropylene high-permeability membrane is 25 ~ 32um, cooperates aforementioned micropore pore structure, has guaranteed good vapor permeability (high permeability) better, and has good barrier effect (waterproof) to liquid water, makes the waterproof nature and the high permeability of product reach optimum balance.
The air permeability of the air-permeable polyethylene film layer 3 is 100-500 sec/100ml, and the moisture permeability is 1500-2500 g/m2 & 24 h; the thickness of ventilative polyethylene film layer 3 is 25 ~ 45 um.
The breathable polyethylene film layer 3 with the structure has good air permeability and moisture permeability (has good water vapor permeability (high permeability) and good barrier effect on liquid water);
the thickness of ventilative polyethylene membrane layer 3 is 25 ~ 45um, has guaranteed good vapor permeability (high permeability) better, and has good barrier effect (waterproof) to liquid water, makes the waterproof nature and the high permeability of product reach optimum balance.
Further, in another embodiment, the non-woven fabric layer 1, the polypropylene high-permeability film 2 and the breathable polyethylene film layer 3 are sequentially compounded through the adhesive 4.
The existing dry compounding process can be adopted in practical application.
Further, in another embodiment, the non-woven fabric layer 1 is a PET filament plain non-woven fabric.
The heat-sealing adhesive tape has the advantages of good air permeability and moisture permeability, high temperature resistance, no phenomenon of adhesion to heat-sealing mechanical equipment during heat sealing, high mechanical strength, tear resistance and difficult damage in the use process; but also can save cost and is convenient to process.
Further, in another embodiment, the gram weight of the non-woven fabric layer 1 is 40-50 g/m2, and the thickness is 40-50 um;
the polypropylene high-permeability membrane 2 has a micropore structure, and the space between pores is 0.05-0.07 um; the thickness of the polypropylene high-permeability film 2 is 26-28 um;
the air permeability of the air-permeable polyethylene film layer 3 is 220-380 sec/100ml, and the moisture permeability is 1900-2200 g/m2 & 24 h; the thickness of the breathable polyethylene film layer 3 is 30-38 um.
Example 2:
as shown in fig. 1 to 3, a deoxidizer packaging bag includes a face mask 200 and a high-permeability back film 100; the face film 200 is attached to the high-permeability back film 100 and is heat-sealed at the opening edge 101; the face pack 200 is a PET/LLDPE composite film. PET/LLDPE composite films made from PET/LLDPE composites, such as PET12+ LLDPE 50; the printing ink has good mechanical property, good printing performance and good printing performance; in addition, the transparent film is convenient for observation.
The wrapping bag in above structure is heat-sealed at opening edge 101, forms the chamber that holds that is used for filling the deoxidier, and the deoxidier that fills is high back film 100 that passes through all around, has high moisture permeability and high transmissivity, and it is fast/the deoxidation is fast to absorb moisture (some deoxidier have concurrently the dehumidification function, or need absorb water in the deoxidation process, by the way dehumidification).
In addition, the heat-seal surface of the high-permeability back film 100 after being folded in half is the air-permeable polyethylene film layer 3, and the air-permeable polyethylene film layer 3 has excellent heat-seal performance and common heat-seal strength (about 6N/15mm), so that the high-permeability back film is actually packaged and used.
The high-permeability back film 100 comprises a non-woven fabric layer 1, a polypropylene high-permeability film 2 and a breathable polyethylene film layer 3 which are sequentially compounded;
the non-woven fabric layer 1 is a polyester filament plain non-woven fabric, the gram weight is 30-60 g/m2, and the thickness is 30-60 um;
in the structure, the non-woven fabric layer 1 is a polyester filament plain non-woven fabric, is good in breathability and moisture permeability, is high-temperature resistant, cannot be bonded on heat-sealing mechanical equipment when being subjected to heat sealing, is high in mechanical strength and tear-resistant, and is not easy to damage in the using process.
In the structure, the gram weight of the non-woven fabric layer is 30-60 g/m2, and the thickness of the non-woven fabric layer is 30-60 um; not only meets the use requirements of mechanical property and the like of the product (high-transparency back film), but also saves raw materials, and the cost performance of the product is optimal.
The polypropylene high-permeability membrane 2 has a micropore structure, and the space between pores is 0.05-0.07 um; the thickness of the polypropylene high-permeability film 2 is 25-30 um;
the polypropylene high-permeability film with the structure has good air permeability and moisture permeability, good water vapor permeability (high permeability) and good barrier effect (waterproof) on liquid water.
In the structure above the thickness of polypropylene high-permeability membrane is 25 ~ 32um, cooperates aforementioned micropore pore structure, has guaranteed good vapor permeability (high permeability) better, and has good barrier effect (waterproof) to liquid water, makes the waterproof nature and the high permeability of product reach optimum balance.
The air permeability of the air-permeable polyethylene film layer 3 is 100-500 sec/100ml, and the moisture permeability is 1500-2500 g/m2 & 24 h; the thickness of ventilative polyethylene film layer 3 is 25 ~ 45 um.
The breathable polyethylene film layer 3 with the structure has good air permeability and moisture permeability (has good water vapor permeability (high permeability) and good barrier effect on liquid water);
the thickness of ventilative polyethylene membrane layer 3 is 25 ~ 45um, has guaranteed good vapor permeability (high permeability) better, and has good barrier effect (waterproof) to liquid water, makes the waterproof nature and the high permeability of product reach optimum balance.
Further, in another embodiment, the non-woven fabric layer 1, the polypropylene high-permeability film 2 and the breathable polyethylene film layer 3 are sequentially compounded through the adhesive 4.
The existing dry compounding process can be adopted in practical application.
Further, in another embodiment, the non-woven fabric layer 1 is a PET filament plain non-woven fabric.
The heat-sealing adhesive tape has the advantages of good air permeability and moisture permeability, high temperature resistance, no phenomenon of adhesion to heat-sealing mechanical equipment during heat sealing, high mechanical strength, tear resistance and difficult damage in the use process; but also can save cost and is convenient to process.
Further, in another embodiment, the gram weight of the non-woven fabric layer 1 is 40-50 g/m2, and the thickness is 40-50 um;
the polypropylene high-permeability membrane 2 has a micropore structure, and the space between pores is 0.05-0.07 um; the thickness of the polypropylene high-permeability film 2 is 26-28 um;
the air permeability of the air-permeable polyethylene film layer 3 is 220-380 sec/100ml, and the moisture permeability is 1900-2200 g/m2 & 24 h; the thickness of the breathable polyethylene film layer 3 is 30-38 um.
Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (5)
1. A high-transparency back film is characterized in that: comprises a non-woven fabric layer (1), a polypropylene high-permeability film (2) and a breathable polyethylene film layer (3) which are compounded in sequence;
the non-woven fabric layer (1) is polyester filament plain non-woven fabric, the gram weight is 30-60 g/m2, and the thickness is 30-60 um;
the polypropylene high-permeability membrane (2) has a micropore structure, and the space between pores is 0.05-0.07 um; the thickness of the polypropylene high-permeability film (2) is 25-30 um;
the air permeability of the air-permeable polyethylene film layer (3) is 100-500 sec/100ml, and the moisture permeability is 1500-2500 g/m2 & 24 h; the thickness of the breathable polyethylene film layer (3) is 25-45 um.
2. The high-transparency back film according to claim 1, wherein: the non-woven fabric layer (1), the polypropylene high-permeability film (2) and the breathable polyethylene film layer (3) are sequentially compounded through the adhesive (4).
3. The high-transparency back film according to claim 1, wherein: the non-woven fabric layer (1) is a PET filament plain non-woven fabric.
4. The high-transparency back film according to claim 1, wherein: the gram weight of the non-woven fabric layer (1) is 40-50 g/m2, and the thickness is 40-50 um;
the thickness of the polypropylene high-permeability film (2) is 26-28 um;
the air permeability of the air-permeable polyethylene film layer (3) is 220-380 sec/100ml, and the moisture permeability is 1900-2200 g/m 2-24 h; the thickness of the breathable polyethylene film layer (3) is 30-38 um.
5. A deoxidizer packaging bag is characterized in that: comprises a face film (200) and a high-transmittance back film (100); the face film (200) is attached to the high-transmittance back film (100) and is heat-sealed at the opening edge (101); the high-transparency back film (100) is the high-transparency back film of any one of claims 1 to 4; the facial mask (200) is a PET/LLDPE composite film.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953678A (en) * | 2022-06-08 | 2022-08-30 | 嘉兴星越包装材料有限公司 | Vehicle lamp drying agent package and oil-proof and water-proof treatment method for paper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953678A (en) * | 2022-06-08 | 2022-08-30 | 嘉兴星越包装材料有限公司 | Vehicle lamp drying agent package and oil-proof and water-proof treatment method for paper |
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