CN107264957A

CN107264957A - A kind of food packaging barbecue bag

Info

Publication number: CN107264957A
Application number: CN201710553216.4A
Authority: CN
Inventors: 贺电
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-07-07
Filing date: 2017-07-07
Publication date: 2017-10-20

Abstract

The present invention is a kind of food packaging barbecue bag, belong to plastic flexible package technical field, high temperature resistant and oil resistivity and nontoxic wait of health is needed to require research and development for barbecue industry packing, material food-grade polypropylene PP pellets improve that formula is obtained, and the raw material feature of formula is mainly heat-resisting quantity and oil resistivity；Using multi-layer co-extruded curtain coating law technology production, generally three layers or more than three layers structures, thickness is no more than 70 μm of film, then by the processing bag shaping of fervent side sealing bag machine.Because the resistance to elevated temperatures of the packaging material is excellent, during for packaging for foodstuff can at a temperature of 130 degree cooking disinfection, so can apply to the fields such as hot filling, retort pouch, aseptic packaging, can also microwave stove heat, it is good plus acidproof, alkaline-resisting, oil resistance, it thus be accordingly used in this high temperature frying food of packaging barbecue most suitable；Due to using food grade materials, there is hygienic, nontoxic, recyclable recycling.

Description

A kind of food packaging barbecue bag

Technical field

The packaging bag belongs to plastic flexible package technical field, is made, is mainly used in of heat-resisting quantity and oil resistivity material Food service industry, has the advantages that portable, hygienic, nontoxic, is a kind of functional package bag.

Background technology

When roasting industry packing, current generally existing white foam lunch box, PE plastic bags or flat mouth bag, paper bag mixing make Situation；Because foam food boxes are that country has prohibited production and used, and it is not by eating that PE plastic bags, which have many, Grade proprietary material is made, or even some are coloured or be made up of the waste material of secondary recovery, hence it is evident that be it is unhygienic and poisonous, Health can be influenceed, and the oil resistant moisture-proof of paper bag is poor；Because barbecue belongs to the table of high temperature food, general barbecue or roasting seafood Face temperature has degree more than 80-90, and the universal heat-resisting quantity of above-mentioned packaging is poor, easily occurs to melt deformation, discharges harmful substance, to food Polluted with environment, therefore high temperature food should not be packed, so never forming a satisfied packaging standard on the market With the product of specification, how the target that always food service industry is pursued is packed using healthy, environmentally friendly and handy.

The content of the invention

The packaging bag needs heat-resisting quantity and oil resistivity and nontoxic wait of health to require research and development for barbecue industry packing, of the invention The high temperature range of finger is 100-130 degree；Purpose is to provide a kind of portable, handy and hygienic packaging for barbecue packing；Outside sack Light and handy, the transparent good, glossiness of sight is high, and high temperature resistant and oil resistivity are excellent；Because being to use food grade materials, health, nothing It is malicious, recyclable to recycle.

The preparation method of the packaging bag is：Material is matched somebody with somebody by food-grade polypropylene pellet by multi-layer co-extruded the tape casting with improvement Side is made, and the raw material feature of formula is mainly high temperature resistant and oil resistivity, and three layers or three are processed into by multi-layer co-extruded casting apparatus Layer above structure, thickness is no more than 70 μm of film, then by the processing bag shaping of fervent side sealing bag machine.

Because the resistance to elevated temperatures of the packaging material is excellent, during for packaging for foodstuff can at a temperature of 130 degree cooking disinfection, So can apply to the fields such as hot filling, retort pouch, aseptic packaging, can also microwave stove heat, add acidproof, alkaline-resisting, oil resistivity Can be good, it thus be accordingly used in this high temperature frying food of packaging barbecue most suitable.

Existing other packaging beneficial effects are contrasted to be presented as：Safe with food-contact, the high bandwagon effect of transparency is good, The local flavor of built-in food is not interfered with, heat-resisting oil resistance is protruded, and microwave stove heat is also can be placed on, because using food-grade Material, it is hygienic, nontoxic, it is recyclable recycle, can improve at present barbecue packing packaging health and reclaim situation, reduce waste with Pollution, belongs to healthy, energy saving and environment friendly packaging bag.

Embodiment

The bag material can be by Multi-layer co-extrusion film-blowing method or multi-layer co-extruded the tape casting technique productions, it is preferable that many Layer coextrusion casting method, improves formula with food-grade polypropylene PP pellets and is made, the raw material feature of formula be mainly heat-resisting quantity and Oil resistivity, three layers or more than three layers structures are extruded as using multi-layer co-extruded casting apparatus, and thickness is no more than 70 μm of film.Citing Illustrate it is three-layer co-extruded be divided into outer layer, intermediate layer and internal layer, wherein outer layer can use melt index 7-12g/10min, melt temperature Scope is 140 degree of polypropylene copolymer；Intermediate layer can use melt index 6-10g/10min, and melt temperature range is 150 degree Polypropylene homopolymer；Internal layer can use melt index 7-12g/10min, and melt temperature range is 140 degree of Polypropylene copolymer Thing；It is arranged in order from outside to inside and consumption proportion is：Outer layer copolymer 15-20%, intermediate layer homopolymer 60-70%, internal layer are common Polymers 15-20%, online calibrator is used when being flowed out by the heating melting extrusion of respective extruder by T-shape full-automatic regulation die head To control distribution thickness outer layer be 10-15 μm, intermediate layer is 30-50 μm, internal layer is 10-15 μm, and gross thickness is thin no more than 70 μm Film.It is characterized in that outer layer copolymer composition is mainly raising impact strength, intermediate layer homopolymer composition is mainly raising barrier And heat-resisting quantity, internal layer copolymer composition is mainly improvement low temperature heat seal；Above polypropylene PP raw material melt temperature all reaches 140-150 degree, can at a temperature of 130 degree cooking disinfection, so heat-resisting quantity is good；Polypropylene PP still can be in microwave stove heat Material, and hygienic nontoxic, stable chemical performance are acidproof, alkaline-resisting, do not reacted with most of chemicals in addition to strong acid；It is insoluble Yu Shui, 24 hours water imbibitions are only 0.01% in water, so having good oil resistant and moisture-proof again, can sufficiently meet product Heat-resisting quantity and oil resistivity the need for.For another wanting more functions to do the film of more than three layers structures, often increase by one layer and add Plus corresponding material modified increase more performances.The tape casting technical maturity, the advantage compared to blowing is easy start, speed Degree is fast, and yield is high, and waste material is few, and nontoxic pollution-free, and in order, transparency is high for the film chemical molecules align of production, and glossiness is good, Thickness uniform ground is good, with excellent illustrative；Then it is processed into flat mouth on fervent side sealing bag machine with the film again Bag or self-adhesion bag；The sack being made can be open, can seal, transparent attractive in appearance, allow built-in food quality high-visible during for packing, It is easy to use, it is safe and healthy.

Claims

1. a kind of food packaging barbecue bag, its material is plastic sheeting, it is characterized in that being changed using food-grade polypropylene PP pellets Kind formula is processed into the film of three layers or more than three layers structures by multi-layer co-extruded casting apparatus, then by fervent side sealing bag machine Process bag shaping.

2. a kind of food packaging barbecue bag according to claim 1, it is characterized in that material makes three by polypropylene granules The film of Rotating fields, is divided into outer layer, intermediate layer, internal layer, and outer layer uses melt index 7-12g/10min, and melt temperature range is 140 degree of polypropylene copolymer, intermediate layer uses melt index 6-10g/10min, and melt temperature range is 150 degree of polypropylene Homopolymer, internal layer uses melt index 7-12g/10min, and melt temperature range is 140 degree of polypropylene copolymer.

3. a kind of food packaging barbecue bag according to claim 2, it is characterized in that material includes three-decker, by outside extremely Inside it is arranged in order and consumption proportion is：Outer layer copolymer 15-20%, intermediate layer homopolymer 60-70%, internal layer copolymer 1 5- 20%.

4. a kind of food packaging barbecue bag according to claim 2, it is characterized in that material thickness outer layer be 10-15 μm, Intermediate layer is 30-50 μm, internal layer is 10-15 μm, and gross thickness is no more than 70 μm of film.

5. a kind of food packaging barbecue bag according to claim 2, is carried it is characterized in that the outer composition of material is mainly The copolymer of high impact strength, Interlayer Alloy is mainly the homopolymer for improving barrier and heat-resisting quantity, inner component master If improving the copolymer of low temperature heat seal, above polypropylene PP raw material melts temperature all reaches 140-150 degree, can be at 130 degree At a temperature of cooking disinfection, can microwave stove heat, oil resistant blocks water.

6. a kind of food packaging barbecue bag according to claim 1, it is characterized in that material can make more than three layers structures Film, often increase that one layer of addition is corresponding material modified to increase more performances.

7. a kind of food packaging barbecue bag according to claim 1, it is characterized in that with three layers or more than three layers structures Modified film, is processed into flat mouth bag or self-adhesion bag by fervent side sealing bag machine, can be open, can seal.