CN212149891U - High-permeability film for rapid packaging and packaging bag with high-permeability film - Google Patents
High-permeability film for rapid packaging and packaging bag with high-permeability film Download PDFInfo
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Abstract
The utility model discloses a high-permeability film for fast packaging and a packaging bag with the high-permeability film, which comprises a non-woven fabric layer, a polypropylene high-permeability film and a breathable polyethylene film layer which are compounded in sequence; the non-woven fabric layer is a PET/PE bi-component plain non-woven fabric, the gram weight is 25-50 g/m2, and the thickness is 30-50 um; the heat seal strength of the non-woven fabric layer is greater than or equal to 12N/15 mm; 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 25-32 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 film for quick packaging has simple structure, convenient use, ventilation and large moisture permeability; the two surfaces can be subjected to heat sealing, the heat sealing strength is different, the heat sealing surface can be selected according to needs, and the packaging film has good rapid packaging performance and good mechanical property.
Description
Technical Field
The utility model discloses membrane material and packing technical field, concretely relates to quick packing is with high membrane and have this wrapping bag that highly passes through the membrane.
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, like a drying agent (mainly having the functions of absorbing water and removing moisture) bag, and is sealed and packaged together with food in a food bag, so that it can remove the oxygen remained in the air in the 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.
2018.02.13 discloses a patent of CN207001250U entitled "an indicating integral type deoxidizer packaging material", which discloses an indicating integral type deoxidizer packaging material, comprising a packaging paper body, the packaging paper body comprises an inner film, a PET layer and an outer film, the inner film is compounded on the bottom surface of the PET layer through adhesive glue, the outer film is compounded on the top surface of the PET layer through adhesive glue, and the outer film is provided with an indicating pattern for detecting and indicating 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 packaging materials for the current (deoxidizer/desiccant) packaging bags have the following problems:
1. the heat sealing performance is poor, and the packaging bag cannot be used for quick packaging;
2. or the air permeability is not good enough, or powder is easy to leak, the safety is poor, and the food can not be used in the food industry;
3. or the water vapor transmission capacity is low, or the waterproof effect is poor;
4. the mechanical strength is poor, the damage is easy, and the service life is short.
Based on the above circumstances, the utility model provides a quick packing is with high membrane and have this wrapping bag that highly passes through the membrane can effectively solve above problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a quick packing is with high membrane and have this wrapping bag that highly passes through the membrane. The utility model optimizes the 3-layer structure of the special non-woven fabric layer, the polypropylene high-permeability film and the breathable polyethylene film to obtain the high-permeability film for quick packaging, which has the advantages of simple structure, convenient use, ventilation, no powder leakage, good vapor permeability (high permeability) and good barrier effect (waterproof) on liquid water; the two surfaces can be subjected to heat sealing, the heat sealing strength is different, the heat sealing surface can be selected according to needs, and the packaging film has good rapid packaging performance and good mechanical property.
The utility model discloses a following technical scheme realizes:
a high-permeability film for rapid packaging comprises a non-woven fabric layer, a polypropylene high-permeability film and a breathable polyethylene film layer which are sequentially compounded;
the non-woven fabric layer is a PET/PE bi-component plain non-woven fabric, the gram weight is 25-50 g/m2, and the thickness is 30-50 um; the heat seal strength of the non-woven fabric layer is greater than or equal to 12N/15 mm;
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 25-32 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 utility model optimizes the 3-layer structure of the special non-woven fabric layer, the polypropylene high-permeability film and the breathable polyethylene film to obtain the high-permeability film for quick packaging, which has the advantages of simple structure, convenient use, ventilation, no powder leakage, good vapor permeability (high permeability) and good barrier effect (waterproof) on liquid water; the two surfaces can be subjected to heat sealing, the heat sealing strength is different, the heat sealing surface can be selected according to needs, and the packaging film has good rapid packaging performance and good 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 heat seal strength of the non-woven fabric layer is more than or equal to 15N/15 mm.
Preferably, the gram weight of the non-woven fabric layer is 30-45 g/m2, and the thickness of the non-woven fabric layer is 35-45 um;
the thickness of the polypropylene high-permeability film is 27-30 um;
the air permeability of the air-permeable polyethylene film layer is 200-400 sec/100ml, and the moisture permeability is 1800-2200 g/m2 & 24 h; the thickness of ventilative polyethylene film layer is 30 ~ 40 um.
The invention also provides a packaging bag, which is obtained by folding the rapid packaging high-permeability film in half and then carrying out heat sealing on the edge of the opening; the high-permeability film for rapid package is the high-permeability film for rapid package as described above.
The invention also provides a packaging bag, which comprises a facial mask and a high-permeability film for quick packaging; the mask is attached to a high-permeability film for quick packaging, and is heat-sealed at the opening edge; the high-permeability film for rapid packaging is the high-permeability film for rapid packaging; the facial mask is a PET/LLDPE composite film.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model optimizes the 3-layer structure of the special non-woven fabric layer, the polypropylene high-permeability film and the breathable polyethylene film to obtain the high-permeability film for quick packaging, which has the advantages of simple structure, convenient use, ventilation, no powder leakage, good vapor permeability (high permeability) and good barrier effect (waterproof) on liquid water; the two surfaces can be subjected to heat sealing, the heat sealing strength is different, the heat sealing surface can be selected according to needs, and the packaging film has good rapid packaging performance and good mechanical property.
Drawings
FIG. 1 is a schematic structural view of the high-permeability film for rapid packaging of the present invention;
fig. 2 is a schematic structural view of an embodiment of the packaging bag of the present invention;
fig. 3 is a schematic front view of another embodiment of the packaging bag of the present invention;
fig. 4 is a schematic rear view of another embodiment of the packing bag of the present invention (fig. 3).
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 film for rapid packaging 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 PET/PE bi-component plain non-woven fabric, the gram weight is 25-50 g/m2, and the thickness is 30-50 um; the heat seal strength of the non-woven fabric layer 1 is greater than or equal to 12N/15 mm;
the PET/PE bi-component plain non-woven fabric in the structure has good air permeability, good heat sealing performance and high heat sealing strength, the single PET has poor heat sealing performance, and the single PE has good heat sealing performance but low heat sealing strength and is easy to damage in the practical process; in addition, the composite material also has higher tensile strength and good mechanical property.
In the structure, the gram weight of the non-woven fabric layer is 25-50 g/m2, and the thickness of the non-woven fabric layer is 30-50 um; not only meets the use requirements of mechanical property and the like of the product (high-permeability film for quick packaging), but also saves raw materials, and the cost performance of the product is optimal.
The heat seal strength of the non-woven fabric layer 1 in the structure is more than or equal to 12N/15 mm; the heat sealing strength plays a decisive role in the proportion of PET/PE bi-component of the PET/PE bi-component plain woven fabric, the PET is relatively high in content, the heat sealing strength is high, and in practical application, a person skilled in the art can select the PET/PE bi-component plain woven fabric with the corresponding proportion of PET/PE bi-component as required.
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 25-32 um;
the polypropylene high-permeability film with the structure has 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 heat seal strength of the nonwoven fabric layer 1 is 15N/15mm or more.
Further, in another embodiment, the gram weight of the non-woven fabric layer 1 is 30-45 g/m2, and the thickness is 35-45 um;
the thickness of the polypropylene high-permeability film 2 is 27-30 um;
the air permeability of the air-permeable polyethylene film layer 3 is 200-400 sec/100ml, and the moisture permeability is 1800-2200 g/m2 & 24 h; the thickness of the breathable polyethylene film layer 3 is 30-40 um.
Example 2:
as shown in fig. 1 and 2, a packing bag is characterized in that: the packaging bag is obtained by folding a high-permeability film 100 for quick packaging in half and then heat-sealing the opening edge 101;
the packaging bag in the structure is heat-sealed at the opening edge 101 to form a containing cavity for filling the drying agent/deoxidizing agent, the periphery of the filled drying agent/deoxidizing agent is provided with the high-permeability film 100 for rapid packaging, and the high-permeability film has high moisture permeability, high permeability and high moisture absorption speed/deoxidation speed.
In addition, the heat-sealing surface of the high-permeability film 100 for quick packaging after being folded in half can be a nonwoven fabric layer 1 or an air-permeable polyethylene film layer 3, the nonwoven fabric layer 1 can be heat-sealed, the heat-sealing strength is high, the heat-sealing performance of the air-permeable polyethylene film layer 3 is better, and the heat-sealing strength is general (about 6N/15mm), so that the heat-sealing surface can be selected according to needs in the actual packaging and using process, and the quick packaging film has good quick packaging performance.
The high-permeability film 100 for rapid packaging 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 PET/PE bi-component plain non-woven fabric, the gram weight is 25-50 g/m2, and the thickness is 30-50 um; the heat seal strength of the non-woven fabric layer 1 is greater than or equal to 12N/15 mm;
the PET/PE bi-component plain non-woven fabric in the structure has good air permeability, good heat sealing performance and high heat sealing strength, the single PET has poor heat sealing performance, and the single PE has good heat sealing performance but low heat sealing strength and is easy to damage in the practical process; in addition, the composite material also has higher tensile strength and good mechanical property.
In the structure, the gram weight of the non-woven fabric layer is 25-50 g/m2, and the thickness of the non-woven fabric layer is 30-50 um; not only meets the use requirements of mechanical property and the like of the product (high-permeability film for quick packaging), but also saves raw materials, and the cost performance of the product is optimal.
The heat seal strength of the non-woven fabric layer 1 in the structure is more than or equal to 12N/15 mm; the heat sealing strength plays a decisive role in the proportion of PET/PE bi-component of the PET/PE bi-component plain woven fabric, the PET is relatively high in content, the heat sealing strength is high, and in practical application, a person skilled in the art can select the PET/PE bi-component plain woven fabric with the corresponding proportion of PET/PE bi-component as required.
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 25-32 um;
the polypropylene high-permeability film with the structure has 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 heat seal strength of the nonwoven fabric layer 1 is 15N/15mm or more.
Further, in another embodiment, the gram weight of the non-woven fabric layer 1 is 30-45 g/m2, and the thickness is 35-45 um;
the thickness of the polypropylene high-permeability film 2 is 27-30 um;
the air permeability of the air-permeable polyethylene film layer 3 is 200-400 sec/100ml, and the moisture permeability is 1800-2200 g/m2 & 24 h; the thickness of the breathable polyethylene film layer 3 is 30-40 um.
Example 3:
as shown in fig. 1, 3 and 4, a packaging bag comprises a mask 200 and a high-permeability film 100 for quick packaging; the mask 200 is attached to the high-permeability film 100 for quick packaging and is heat-sealed at the opening edge 101;
the packaging bag in the structure is heat-sealed at the opening edge 101 to form a containing cavity for filling the drying agent/deoxidizing agent, one surface of the filled drying agent/deoxidizing agent is the high-permeability film 100 for rapid packaging, and the packaging bag has the advantages of high moisture permeability, high moisture absorption speed and high deoxidizing speed, and is beneficial to prolonging the efficacy of the drying agent/deoxidizing agent.
In addition, the heat-sealing surface of the high-permeability film 100 for rapid packaging can be a nonwoven fabric layer 1 or an air-permeable polyethylene film layer 3, the nonwoven fabric layer 1 can be heat-sealed, the heat-sealing strength is high, the heat-sealing performance of the air-permeable polyethylene film layer 3 is better, and the heat-sealing strength is general (about 6N/15mm), so that the heat-sealing surface can be selected according to needs in the actual packaging and using process, and the rapid packaging film has good rapid packaging performance.
The facial mask 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 high-permeability film 100 for rapid packaging 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 PET/PE bi-component plain non-woven fabric, the gram weight is 25-50 g/m2, and the thickness is 30-50 um; the heat seal strength of the non-woven fabric layer 1 is greater than or equal to 12N/15 mm;
the PET/PE bi-component plain non-woven fabric in the structure has good air permeability, good heat sealing performance and high heat sealing strength, the single PET has poor heat sealing performance, and the single PE has good heat sealing performance but low heat sealing strength and is easy to damage in the practical process; in addition, the composite material also has higher tensile strength and good mechanical property.
In the structure, the gram weight of the non-woven fabric layer is 25-50 g/m2, and the thickness of the non-woven fabric layer is 30-50 um; not only meets the use requirements of mechanical property and the like of the product (high-permeability film for quick packaging), but also saves raw materials, and the cost performance of the product is optimal.
The heat seal strength of the non-woven fabric layer 1 in the structure is more than or equal to 12N/15 mm; the heat sealing strength plays a decisive role in the proportion of PET/PE bi-component of the PET/PE bi-component plain woven fabric, the PET is relatively high in content, the heat sealing strength is high, and in practical application, a person skilled in the art can select the PET/PE bi-component plain woven fabric with the corresponding proportion of PET/PE bi-component as required.
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 25-32 um;
the polypropylene high-permeability film with the structure has 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 heat seal strength of the nonwoven fabric layer 1 is 15N/15mm or more.
Further, in another embodiment, the gram weight of the non-woven fabric layer 1 is 30-45 g/m2, and the thickness is 35-45 um;
the thickness of the polypropylene high-permeability film 2 is 27-30 um;
the air permeability of the air-permeable polyethylene film layer 3 is 200-400 sec/100ml, and the moisture permeability is 1800-2200 g/m2 & 24 h; the thickness of the breathable polyethylene film layer 3 is 30-40 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 (6)
1. The utility model provides a high membrane that passes through for quick package which 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 a PET/PE bi-component plain non-woven fabric, the gram weight is 25-50 g/m2, and the thickness is 30-50 um; the heat seal strength of the non-woven fabric layer (1) is more than or equal to 12N/15 mm;
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 25-32 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-permeability film for rapid packaging 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-permeability film for rapid packaging according to claim 1, wherein: the heat seal strength of the non-woven fabric layer (1) is more than or equal to 15N/15 mm.
4. The high-permeability film for rapid packaging according to claim 1, wherein: the gram weight of the non-woven fabric layer (1) is 30-45 g/m2, and the thickness is 35-45 um;
the thickness of the polypropylene high-permeability film (2) is 27-30 um;
the air permeability of the air-permeable polyethylene film layer (3) is 200-400 sec/100ml, and the moisture permeability is 1800-2200 g/m2 & 24 h; the thickness of the breathable polyethylene film layer (3) is 30-40 um.
5. A kind of wrapping bag, its characterized in that: the packaging bag is obtained by folding a high-permeability film (100) for quick packaging in half and then carrying out heat sealing on the opening edge (101); the high-permeability film (100) for rapid packaging according to any one of claims 1 to 4.
6. A kind of wrapping bag, its characterized in that: comprises a face mask (200) and a high-permeability film (100) for quick packaging; the facial mask (200) is attached to the high-permeability film (100) for quick packaging and is heat-sealed at the opening edge (101); the high-permeability film for rapid packaging (100) is the high-permeability film for rapid packaging according to any one of claims 1 to 4; the facial mask (200) is a PET/LLDPE composite film.
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| CN202020413697.6U CN212149891U (en) | 2020-03-27 | 2020-03-27 | High-permeability film for rapid packaging and packaging bag with high-permeability film |
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