CN109181075A - Food package film and preparation method thereof, packaging pouch for microwave oven made from it - Google Patents
Food package film and preparation method thereof, packaging pouch for microwave oven made from it Download PDFInfo
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- CN109181075A CN109181075A CN201811088440.1A CN201811088440A CN109181075A CN 109181075 A CN109181075 A CN 109181075A CN 201811088440 A CN201811088440 A CN 201811088440A CN 109181075 A CN109181075 A CN 109181075A
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- food package
- package film
- sealing strip
- sealing
- microwave oven
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/01—Ventilation or drainage of bags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/02—Wrappers or flexible covers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/06—Pectin; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Package Specialized In Special Use (AREA)
Abstract
The present invention relates to a kind of food package films and preparation method thereof, packaging pouch for microwave oven made from it, belong to technical field of membrane.The food package film, including following component: ldpe resin, hydroxypropul starch, pectin, dibenzoyl peroxide, discarded ginger stalk powder, polylactic acid and hydroxypropyl methylcellulose.The preparation method of food package film includes the following steps: to prepare pre-feed, prepares mixture and extrusion molding.Packaging pouch for microwave oven includes ventilative chamber, seal area and storage chamber, and the ventilative chamber and the storage chamber are located at the two sides of seal area, and the ventilative chamber is equipped with air hole, and the seal area is empty envelope state.Packaging film produced by the present invention has high-intensitive and high resiliency, and is made into highly-safe, is suitble to the packaging bag used in micro-wave oven.
Description
Technical field
The invention belongs to technical field of membrane, and in particular to a kind of food package film and preparation method thereof, micro- made from it
Wave furnace packaging bag.
Background technique
With the development of science and technology, people's lives level increases accordingly, and in order to adapt to the fast development of society, not by society
Club eliminates, and people's lives tempo increase, various instant food become more and more popular.In the market commonplace each confectionary,
These food need to only be placed in micro-wave oven and heat by the instant food such as steamed bun and vegetables, consumer.But in order to ensure food
Object it is fresh, the micro-wave oven sack of the prior art is all hermetic type, and in micro-wave oven high-temperature heating process, sack can be heated
It expands, when the pressure in sack is excessive, sack is easy to cause to rise brokenly and explode, the edible of food is not only influenced, to microwave
Furnace will also result in very big security risk.
Therefore, it is necessary to one kind to have high-intensitive and elastomeric packaging film, and be made into highly-safe, be suitble in microwave
The packaging bag used in furnace.
Summary of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, and proposing one kind has high-intensitive and elastomeric packaging film, and
It is made into highly-safe, sustainable use is suitble to the packaging bag used in micro-wave oven.
The present invention can be achieved through the following technical solutions:
Food package film, including the following component according to mass fraction meter: 40 ~ 60 parts of ldpe resin, pectin 4 ~ 6
Part, 5 ~ 8 parts of dibenzoyl peroxide, discarded 4 ~ 6 parts of ginger stalk powder, 11 ~ 12 parts of polylactic acid, 4 ~ 8 parts of hydroxypropyl methylcellulose.
The preparation method of the food package film, includes the following steps:
Step 1: preparation pre-feed:
According to the mass fraction, the pectin and discarded ginger stalk powder are uniformly mixed, pre-feed is obtained；
Step 2: preparing mixture:
According to the mass fraction, the ldpe resin is persistently stirred, then sequentially adds polylactic acid, hydroxypropyl first
Pre-feed described in cellulose, step 1 and dibenzoyl peroxide, are then mixed, and mixture is obtained；
Step 3: extrusion molding:
By mixture obtained by step 2 by extruder extrusion forming, winding and slice, food package film is obtained.
Further, stating temperature when mixing is 30 ~ 40 DEG C, and the revolving speed when mixing is 250 ~ 300r/min.
Further, temperature when persistently stirring described in step 2 is 50 ~ 60 DEG C, the revolving speed persistently stirred 200 ~
250r/min。
Further, when step 3 extrusion molding, one area's temperature of heating of extruder screw is 150 ~ 180 DEG C, heating two
Area's temperature is 180 ~ 200 DEG C.
The packaging pouch for microwave oven made from the food package film, including ventilative chamber, seal area and storage chamber, it is described
Ventilative chamber and the storage chamber are located at the two sides of seal area, and the ventilative chamber is equipped with air hole, and the seal area is void
Envelope state.
Further, the air hole is 4 ~ 8.
Further, the sealing intensity of the seal area is 3 ~ 4N/15mm.
Further, the side of the storage chamber is equipped with removable seal mouth, and the two sides of the removable seal mouth are packed
The first sealing strip and the second sealing strip being fixedly connected, first sealing strip and the second sealing strip knot are respectively equipped on film
Structure matches.
Further, first sealing strip is equipped with sealing block close to a middle side part of second sealing strip, described close
The side of envelope block is fixed with a plurality of fixed blocks, and second sealing strip is equipped with sealing close to the side of first sealing strip
Slot, the seal groove and the sealing block fasten, and the side of the seal groove is equipped with a plurality of fixing grooves, the fixing groove and
The fixed block fastens, wherein and the other side of the sealing block is equipped with strip, and the other side of the seal groove is equipped with card slot,
The structure of the strip and the card slot matches.
Compared with prior art, the present invention has the advantages that:
The first, food package film of the invention is mixed to prepare pre-feed using pectin and discarded ginger stalk powder, and pectin has high resiliency
Can, discarding ginger stalk powder has a very strong thermal stability, and after being used in mixed way of the two, the heat resistance of packaging film and heated can be improved
Expansion is not easily broken, and effectively improves its safety as packaging microwave oven bag when；
The second, polylactic acid has anti-microbial property, effectively improves the freshness of food in packaging bag, then, passes through diphenyl peroxide
Pre-feed, polylactic acid, hydroxypropyl methylcellulose are used in mixed way by formyl as crosslinking agent, improve the stability of packaging film, meanwhile,
The case where transparency of packaging film can be improved in polylactic acid, and consumer is facilitated to observe food in packaging bag, moreover, hypromellose
Element, which can make packaging film upon inflation, has certain gas permeability, can effectively prevent packaging bag expanded by heating explosive, and pre-
Stock is used in conjunction with, and plays the role of double insurance；
Third, when packaging pouch for microwave oven obtained heats in micro-wave oven, when gas is excessive in expanded by heating and packaging bag
When, since the seal area sealing intensity under empty envelope state is 3 ~ 4N/15mm, gas can easily break through void and be sealed during expansion
Area is sealed, ventilative chamber is directly entered, gas is directly discharged to outside from air hole, since packaging film has heat-resisting, high resiliency and has
Certain permeability, therefore, during heating, explosion accident will not occur for packaging film, guarantee the freshness of food and micro-
The safety of wave furnace；
4th, during heating, in order to which protective packing bag can recycle, the first sealing strip is equipped in one end of storage chamber
With the second sealing strip, sealing performance is further increased by the engaging of sealing block and seal groove, and by strip and card slot, is packed
Bag can also recycle, energy conservation and environmental protection.Meanwhile fixed block and fixing groove can further fix the first sealing strip and second
Sealing strip prevents from falling off, and, during actual use, fixed block and fixing groove also help separate the first sealing strip and second
Sealing strip.
Detailed description of the invention
Fig. 1 is the structural schematic diagram with high-intensitive packaging pouch for microwave oven of the invention；
Fig. 2 is the structural schematic diagram of the first sealing strip of packaging pouch for microwave oven of the invention；
Fig. 3 is the structural schematic diagram of the second sealing strip of packaging pouch for microwave oven of the invention.
Wherein, 1, ventilative chamber；2, seal area；3, storage chamber；4, air hole；5, the first sealing strip；6, sealing block；7, fixed
Block；8, the second sealing strip；9, seal groove；10, fixing groove；11, strip；12, card slot.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
Embodiment 1
Food package film, including the following component according to mass fraction meter: 40 parts of ldpe resin, 4 parts of pectin, peroxide
5 parts of dibenzoyl of change, discarded 4 parts of ginger stalk powder, 11 parts of polylactic acid, 4 parts of hydroxypropyl methylcellulose.
The preparation method of the food package film, includes the following steps:
Step 1: preparation pre-feed:
According to the mass fraction, the pectin and discarded ginger stalk powder are uniformly mixed, pre-feed is obtained；The temperature when mixing
It is 30 DEG C, the revolving speed when mixing is 250r/min.
Step 2: preparing mixture:
According to the mass fraction, the ldpe resin is persistently stirred, then sequentially adds polylactic acid, hydroxypropyl first
Pre-feed described in cellulose, step 1 and dibenzoyl peroxide, are then mixed, and mixture is obtained；
Temperature when the persistently stirring is 50 DEG C, the 200r/min of the revolving speed persistently stirred.
Step 3: extrusion molding:
By mixture obtained by step 2 by extruder extrusion forming, winding and slice, food package film is obtained；
Wherein, when extrusion molding, one area's temperature of heating of extruder screw is 150 DEG C, and two area's temperature of heating are 180 DEG C.
The packaging pouch for microwave oven made from the food package film, including ventilative chamber 1, seal area 2 and storage chamber 3,
The ventilative chamber 1 and the storage chamber 3 are located at the two sides of seal area 2, and the ventilative chamber 1 is equipped with air hole 4, described
Stomata 4 is 4, and the seal area 2 is empty envelope state, and the sealing intensity of the seal area 2 is 3N/15mm.
The side of the storage chamber 3 is equipped with removable seal mouth, distinguishes on the two sides packaging film of the removable seal mouth
Equipped with the first sealing strip 5 and the second sealing strip 8 being fixedly connected, 8 structure phase of first sealing strip 5 and second sealing strip
It coincide.
First sealing strip 5 is equipped with sealing block 6 close to a middle side part of second sealing strip 8, the sealing block 6
Side is fixed with a plurality of fixed blocks 7, and second sealing strip 8 is equipped with seal groove close to the side of first sealing strip 5
9, the seal groove 9 and the sealing block 6 fasten, and the side of the seal groove 9 is equipped with a plurality of fixing grooves 10, the fixation
Slot 10 and the fixed block 7 fasten, wherein 6 other sides of the sealing block be equipped with strip 11, the seal groove 9 it is another
Side is equipped with card slot 12, and the structure of the strip 11 and the card slot 12 matches.
Embodiment 2
Food package film, including the following component according to mass fraction meter: 50 parts of ldpe resin, 5 parts of pectin, peroxide
6 parts of dibenzoyl of change, discarded 5 parts of ginger stalk powder, 12 parts of polylactic acid, 6 parts of hydroxypropyl methylcellulose.
The preparation method of the food package film, includes the following steps:
Step 1: preparation pre-feed:
According to the mass fraction, the pectin and discarded ginger stalk powder are uniformly mixed, pre-feed is obtained；The temperature when mixing
It is 35 DEG C, the revolving speed when mixing is 280r/min.
Step 2: preparing mixture:
According to the mass fraction, the ldpe resin is persistently stirred, then sequentially adds polylactic acid, hydroxypropyl first
Pre-feed described in cellulose, step 1 and dibenzoyl peroxide, are then mixed, and mixture is obtained；
Temperature when the persistently stirring is 55 DEG C, the 230r/min of the revolving speed persistently stirred.
Step 3: extrusion molding:
By mixture obtained by step 2 by extruder extrusion forming, winding and slice, food package film is obtained；
Wherein, when extrusion molding, one area's temperature of heating of extruder screw is 160 DEG C, and two area's temperature of heating are 190 DEG C.
The packaging pouch for microwave oven made from the food package film, including ventilative chamber 1, seal area 2 and storage chamber 3,
The ventilative chamber 1 and the storage chamber 3 are located at the two sides of seal area 2, and the ventilative chamber 1 is equipped with air hole 4, described
Stomata 4 is 5, and the seal area 2 is empty envelope state, and the sealing intensity of the seal area 2 is 3N/15mm.
The side of the storage chamber 3 is equipped with removable seal mouth, distinguishes on the two sides packaging film of the removable seal mouth
Equipped with the first sealing strip 5 and the second sealing strip 8 being fixedly connected, 8 structure phase of first sealing strip 5 and second sealing strip
It coincide.
First sealing strip 5 is equipped with sealing block 6 close to a middle side part of second sealing strip 8, the sealing block 6
Side is fixed with a plurality of fixed blocks 7, and second sealing strip 8 is equipped with seal groove close to the side of first sealing strip 5
9, the seal groove 9 and the sealing block 6 fasten, and the side of the seal groove 9 is equipped with a plurality of fixing grooves 10, the fixation
Slot 10 and the fixed block 7 fasten, wherein 6 other sides of the sealing block be equipped with strip 11, the seal groove 9 it is another
Side is equipped with card slot 12, and the structure of the strip 11 and the card slot 12 matches.
Embodiment 3
Food package film, including the following component according to mass fraction meter: 60 parts of ldpe resin, 6 parts of pectin, peroxide
8 parts of dibenzoyl of change, discarded 6 parts of ginger stalk powder, 12 parts of polylactic acid, 8 parts of hydroxypropyl methylcellulose.
The preparation method of the food package film, includes the following steps:
Step 1: preparation pre-feed:
According to the mass fraction, the pectin and discarded ginger stalk powder are uniformly mixed, pre-feed is obtained；The temperature when mixing
It is 40 DEG C, the revolving speed when mixing is 300r/min.
Step 2: preparing mixture:
According to the mass fraction, the ldpe resin is persistently stirred, then sequentially adds polylactic acid, hydroxypropyl first
Pre-feed described in cellulose, step 1 and dibenzoyl peroxide, are then mixed, and mixture is obtained；
Temperature when the persistently stirring is 60 DEG C, the 250r/min of the revolving speed persistently stirred.
Step 3: extrusion molding:
By mixture obtained by step 2 by extruder extrusion forming, winding and slice, food package film is obtained；
Wherein, when extrusion molding, one area's temperature of heating of extruder screw is 180 DEG C, and two area's temperature of heating are 200 DEG C.
The packaging pouch for microwave oven made from the food package film, including ventilative chamber 1, seal area 2 and storage chamber 3,
The ventilative chamber 1 and the storage chamber 3 are located at the two sides of seal area 2, and the ventilative chamber 1 is equipped with air hole 4, described
Stomata 4 is 8, and the seal area 2 is empty envelope state, and the sealing intensity of the seal area 2 is 4N/15mm.
The side of the storage chamber 3 is equipped with removable seal mouth, distinguishes on the two sides packaging film of the removable seal mouth
Equipped with the first sealing strip 5 and the second sealing strip 8 being fixedly connected, 8 structure phase of first sealing strip 5 and second sealing strip
It coincide.
First sealing strip 5 is equipped with sealing block 6 close to a middle side part of second sealing strip 8, the sealing block 6
Side is fixed with a plurality of fixed blocks 7, and second sealing strip 8 is equipped with seal groove close to the side of first sealing strip 5
9, the seal groove 9 and the sealing block 6 fasten, and the side of the seal groove 9 is equipped with a plurality of fixing grooves 10, the fixation
Slot 10 and the fixed block 7 fasten, wherein 6 other sides of the sealing block be equipped with strip 11, the seal groove 9 it is another
Side is equipped with card slot 12, and the structure of the strip 11 and the card slot 12 matches.
Reference examples 1
Food package film, including the following component according to mass fraction meter: 60 parts of ldpe resin, 6 parts of pectin, peroxide
Change 8 parts of dibenzoyl, 8 parts of hydroxypropyl methylcellulose.
The preparation method of the food package film, includes the following steps:
Step 1: preparation pre-feed:
According to the mass fraction, the pectin and discarded ginger stalk powder are uniformly mixed, pre-feed is obtained；The temperature when mixing
It is 40 DEG C, the revolving speed when mixing is 300r/min.
Step 2: preparing mixture:
According to the mass fraction, the ldpe resin is persistently stirred, then sequentially adds polylactic acid, hydroxypropyl first
Pre-feed described in cellulose, step 1 and dibenzoyl peroxide, are then mixed, and mixture is obtained；
Temperature when the persistently stirring is 60 DEG C, the 250r/min of the revolving speed persistently stirred.
Step 3: extrusion molding:
By mixture obtained by step 2 by extruder extrusion forming, winding and slice, food package film is obtained；
Wherein, when extrusion molding, one area's temperature of heating of extruder screw is 180 DEG C, and two area's temperature of heating are 200 DEG C.
The packaging pouch for microwave oven made from the food package film, including ventilative chamber 1, seal area 2 and storage chamber 3,
The ventilative chamber 1 and the storage chamber 3 are located at the two sides of seal area 2, and the ventilative chamber 1 is equipped with air hole 4, described
Stomata 4 is 8, and the seal area 2 is empty envelope state, and the sealing intensity of the seal area 2 is 4N/15mm.
The side of the storage chamber 3 is equipped with removable seal mouth, distinguishes on the two sides packaging film of the removable seal mouth
Equipped with the first sealing strip 5 and the second sealing strip 8 being fixedly connected, 8 structure phase of first sealing strip 5 and second sealing strip
It coincide.
First sealing strip 5 is equipped with sealing block 6 close to a middle side part of second sealing strip 8, the sealing block 6
Side is fixed with a plurality of fixed blocks 7, and second sealing strip 8 is equipped with seal groove close to the side of first sealing strip 5
9, the seal groove 9 and the sealing block 6 fasten, and the side of the seal groove 9 is equipped with a plurality of fixing grooves 10, the fixation
Slot 10 and the fixed block 7 fasten, wherein 6 other sides of the sealing block be equipped with strip 11, the seal groove 9 it is another
Side is equipped with card slot 12, and the structure of the strip 11 and the card slot 12 matches.
Reference examples 2
Food package film, including the following component according to mass fraction meter: 60 parts of ldpe resin, 6 parts of pectin, peroxide
Change 8 parts of dibenzoyl, 12 parts of polylactic acid.
The preparation method of the food package film, includes the following steps:
Step 1: preparation pre-feed:
According to the mass fraction, the pectin and discarded ginger stalk powder are uniformly mixed, pre-feed is obtained；The temperature when mixing
It is 40 DEG C, the revolving speed when mixing is 300r/min.
Step 2: preparing mixture:
According to the mass fraction, the ldpe resin is persistently stirred, then sequentially adds polylactic acid, hydroxypropyl first
Pre-feed described in cellulose, step 1 and dibenzoyl peroxide, are then mixed, and mixture is obtained；
Temperature when the persistently stirring is 60 DEG C, the 250r/min of the revolving speed persistently stirred.
Step 3: extrusion molding:
By mixture obtained by step 2 by extruder extrusion forming, winding and slice, food package film is obtained；
Wherein, when extrusion molding, one area's temperature of heating of extruder screw is 180 DEG C, and two area's temperature of heating are 200 DEG C.
The packaging pouch for microwave oven made from the food package film, including ventilative chamber 1, seal area 2 and storage chamber 3,
The ventilative chamber 1 and the storage chamber 3 are located at the two sides of seal area 2, and the ventilative chamber 1 is equipped with air hole 4, described
Stomata 4 is 8, and the seal area 2 is empty envelope state, and the sealing intensity of the seal area 2 is 4N/15mm.
The side of the storage chamber 3 is equipped with removable seal mouth, distinguishes on the two sides packaging film of the removable seal mouth
Equipped with the first sealing strip 5 and the second sealing strip 8 being fixedly connected, 8 structure phase of first sealing strip 5 and second sealing strip
It coincide.
First sealing strip 5 is equipped with sealing block 6 close to a middle side part of second sealing strip 8, the sealing block 6
Side is fixed with a plurality of fixed blocks 7, and second sealing strip 8 is equipped with seal groove close to the side of first sealing strip 5
9, the seal groove 9 and the sealing block 6 fasten, and the side of the seal groove 9 is equipped with a plurality of fixing grooves 10, the fixation
Slot 10 and the fixed block 7 fasten, wherein 6 other sides of the sealing block be equipped with strip 11, the seal groove 9 it is another
Side is equipped with card slot 12, and the structure of the strip 11 and the card slot 12 matches.
Packaging film produced by the present invention has high resiliency, the high grade of transparency, high-fire resistance and high intensity, then by packaging film system
At packaging pouch for microwave oven, when packaging pouch for microwave oven obtained heats in micro-wave oven, when in expanded by heating and packaging bag
When gas is excessive, since the seal area sealing intensity under empty envelope state is 3 ~ 4N/15mm, gas can be rushed easily during expansion
Broken empty envelope seal area, is directly entered ventilative chamber, and gas is directly discharged to outside from air hole, since packaging film is with heat-resisting, high-elastic
Property and have certain permeability, therefore, during heating, explosion accident will not occur for packaging film, guarantee the new of food
The safety of freshness and micro-wave oven.
During heating, in order to which protective packing bag can recycle, the first sealing strip is equipped in one end of storage chamber
With the second sealing strip, sealing performance is further increased by the engaging of sealing block and seal groove, and by strip and card slot, is packed
Bag can also recycle, energy conservation and environmental protection.Meanwhile fixed block and fixing groove can further fix the first sealing strip and second
Sealing strip prevents from falling off, and, during actual use, fixed block and fixing groove also help separate the first sealing strip and second
Sealing strip.
Packaging film made from embodiment 1 ~ 3 and reference examples 1 ~ 2 is detected, wherein the thickness of examined packaging film
For 0.150mm:
According to the pull-off force of GB/T 28117-2011 detection packaging film, fracture norminal strain, right-angle tearing load, mist degree and water
Vapor permeation amount.
From table 1 it follows that packaging film produced by the present invention, there is excellent pull-off force, fracture norminal strain and straight
Angle tears load, and mist degree is low, and transparency is high, facilitates consumer to observe food in packaging bag, and steam penetrating capacity is low, airtightness
By force.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, above-described embodiment and explanation
It is merely illustrated the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also has
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
It is defined by the appending claims and its equivalent thereof.
Claims (10)
1. food package film, which is characterized in that including the following component according to mass fraction meter: ldpe resin 40 ~
60 parts, 4 ~ 6 parts of pectin, 5 ~ 8 parts of dibenzoyl peroxide, discarded 4 ~ 6 parts of ginger stalk powder, 11 ~ 12 parts of polylactic acid, hydroxypropyl methylcellulose
4 ~ 8 parts.
2. the preparation method of food package film described in claim 1, which comprises the steps of:
Step 1: preparation pre-feed:
According to the mass fraction, the pectin and discarded ginger stalk powder are uniformly mixed, pre-feed is obtained；
Step 2: preparing mixture:
According to the mass fraction, the ldpe resin is persistently stirred, then sequentially adds polylactic acid, hydroxypropyl first
Pre-feed described in cellulose, step 1 and dibenzoyl peroxide, are then mixed, and mixture is obtained；
Step 3: extrusion molding:
By mixture obtained by step 2 by extruder extrusion forming, winding and slice, food package film is obtained.
3. the preparation method of food package film according to claim 2, which is characterized in that temperature when being mixed described in step 1
Degree is 30 ~ 40 DEG C, and the revolving speed when mixing is 250 ~ 300r/min.
4. the preparation method of food package film according to claim 2, which is characterized in that when persistently being stirred described in step 2
Temperature be 50 ~ 60 DEG C, 200 ~ 250r/min of the revolving speed persistently stirred.
5. the preparation method of food package film according to claim 2, which is characterized in that when step 3 extrusion molding, squeeze
One area's temperature of heating of machine screw rod is 150 ~ 180 DEG C out, and two area's temperature of heating are 180 ~ 200 DEG C.
6. the packaging pouch for microwave oven made from food package film described in claim 1, which is characterized in that including chamber of breathing freely
(1), seal area (2) and storage chamber (3), the ventilative chamber (1) and the storage chamber (3) are located at the two sides of seal area (2),
The ventilative chamber (1) is equipped with air hole (4), and the seal area (2) is empty envelope state.
7. packaging pouch for microwave oven made from food package film according to claim 6, which is characterized in that the air hole
It (4) is 4 ~ 8.
8. packaging pouch for microwave oven made from food package film according to claim 6, which is characterized in that the seal area
(2) sealing intensity is 3 ~ 4N/15mm.
9. packaging pouch for microwave oven made from food package film according to claim 6, which is characterized in that the storage chamber
(3) side is equipped with removable seal mouth, and the be fixedly connected is respectively equipped on the two sides packaging film of the removable seal mouth
One sealing strip (5) and the second sealing strip (8), first sealing strip (5) and second sealing strip (8) structure match.
10. packaging pouch for microwave oven made from food package film according to claim 9, which is characterized in that described first
Sealing strip (5) is equipped with sealing block (6) close to a middle side part of second sealing strip (8), and the side of the sealing block (6) is fixed
Equipped with a plurality of fixed blocks (7), second sealing strip (8) is equipped with seal groove close to the side of first sealing strip (5)
(9), the seal groove (9) and the sealing block (6) fasten, and the side of the seal groove (9) is equipped with a plurality of fixing grooves
(10), the fixing groove (10) and the fixed block (7) fasten；
Wherein, (6) other side of the sealing block is equipped with strip (11), and the other side of the seal groove (9) is equipped with card slot (12),
The structure of the strip (11) and the card slot (12) matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088440.1A CN109181075A (en) | 2018-09-18 | 2018-09-18 | Food package film and preparation method thereof, packaging pouch for microwave oven made from it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088440.1A CN109181075A (en) | 2018-09-18 | 2018-09-18 | Food package film and preparation method thereof, packaging pouch for microwave oven made from it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109181075A true CN109181075A (en) | 2019-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811088440.1A Pending CN109181075A (en) | 2018-09-18 | 2018-09-18 | Food package film and preparation method thereof, packaging pouch for microwave oven made from it |
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| Country | Link |
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| CN (1) | CN109181075A (en) |
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Application publication date: 20190111 |
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