CN108084540A - A kind of food pack and preparation method thereof - Google Patents
A kind of food pack and preparation method thereof Download PDFInfo
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- CN108084540A CN108084540A CN201711416578.5A CN201711416578A CN108084540A CN 108084540 A CN108084540 A CN 108084540A CN 201711416578 A CN201711416578 A CN 201711416578A CN 108084540 A CN108084540 A CN 108084540A
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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
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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
- 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
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/08—Cellulose derivatives
- C08J2401/10—Esters of organic acids
- C08J2401/12—Cellulose acetate
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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
- C08J2405/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
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- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- 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
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0058—Biocides
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
The invention discloses a kind of food packs, are made of following raw material：55 70 parts of polyethylene, 15 20 parts of cellulose acetate, 10 15 parts of filler, 8 10 parts of compound preservative, 23 parts of zwitterionic surfactant, 12 parts of epoxidized soybean oil, 12 part, nanometer Au of polyethylene glycol55(SCH2CH3)310.5 1 parts of cluster；The invention also discloses the preparation methods of the food pack, include the following steps：(1) polyethylene is added in high mixer and is heated to molten condition, add cellulose acetate and filler, melt blending；(2) extruder grain；(3) Blown Film；(4) it is molded postcooling and forms film, finally cutting, bag making and packing.Food pack high mechanical strength produced by the present invention, stretch-proof and light weight, tear resistance are good, have good low-temperature impact resistance；By adding compound preservative, food pack has effects that antibacterial, anti-mildew become and expelling parasite, raw material are easy to get, are pure natural, safety and environmental protection；The preparation method of the present invention is simple, and cost of material is low.
Description
Technical field
The invention belongs to packaging bag preparing technical fields, and in particular, to a kind of food pack and preparation method thereof.
Background technology
Packaging bag refers to the sack for packing various articles for use, makes cargo convenience in transport in the process of circulation is produced, easily
Storage.It is widely used in daily life and industrial production.With the fast development of China's economy, the purchasing power of domestic resident is horizontal
Also progressively enhance with consumption wish, consumption idea will tend to further improve quality of life.Especially packaging material for food is direct
It is contacted with packaging food, because it will have an impact the safety of food and then while influencing human-body safety is paid attention to extensively.
Food fresh keeping involves the health problem of huge numbers of families, existing food fresh-keeping method, to solid particle food one
As take herbal sprinkling, coating it is fresh-keeping, and to liquid, semi-fluid food generally take addition anti-corrosion agent it is fresh-keeping, both guarantor
Although fresh method can extend the freshness date of food, due to containing harmful composition such as organophosphor, organo-arsenic, a huge sum of money
Belong to sterilization antiseptic etc., although these compositions are very faint, if long-term consumption still can damage human body.
The content of the invention
For the deficiencies in the prior art in above-mentioned background technology, the present invention provides a kind of food pack and its preparation sides
Method by adding compound preservative, makes food pack have effects that antibacterial, anti-mildew change and expelling parasite, and raw material is easy to get, pure day
So, safety and environmental protection.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of food pack is made of following raw material：55-70 parts of polyethylene, 15-20 parts of cellulose acetate,
10-15 parts of filler, 8-10 parts of compound preservative, 2-3 parts of zwitterionic surfactant, 1-2 parts of epoxidized soybean oil, polyethylene glycol
1-2 parts, nanometer Au55(SCH2CH3)310.5-1 parts of cluster；
The food pack is prepared by following steps：
(1) polyethylene is added in high mixer and is heated to molten condition, added cellulose acetate and filler, temperature rise to
35-40min is stirred with the speed of 1200r/min after 145-165 DEG C, then pressurized treatments 25-30min is carried out to it, pressure is
200MPa；
(2) by compound preservative, zwitterionic surfactant, epoxidized soybean oil, polyethylene glycol, nanometer Au55
(SCH2CH3)31Cluster is added in the melt blended material of step (1), after stirring 20-30min with 1400r/min speed, adds in
In double screw extruder, extruder grain is carried out to it with double screw extruder；
(3) after twin-screw extruder, raw material after extrusion is subjected to blowfilm shaping with single screw rod extrusion blow machine；(4) into
Type postcooling forms film, finally cutting, bag making and packing.
The filler is that calcium-base bentonite, glass fibre, porous hydroxyapatite, talcum powder according to mass ratio are 10:
13-15:4-7:11-15 is mixed with.
The compound preservative is that chitosan, dihydrochalcone, Chinese herbal medicine particle according to mass ratio are 10:1-2：3-6
It is mixed with.
A kind of preparation method of food pack, includes the following steps：
(1) polyethylene is added in high mixer and is heated to molten condition, added cellulose acetate and filler, temperature rise to
35-40min is stirred with the speed of 1200r/min after 145-165 DEG C, then pressurized treatments 25-30min is carried out to it, pressure is
200MPa；
(2) by compound preservative, zwitterionic surfactant, epoxidized soybean oil, polyethylene glycol, nanometer Au55
(SCH2CH3)31Cluster is added in the melt blended material of step (1), after stirring 20-30min with 1400r/min speed, adds in
In double screw extruder, extruder grain is carried out to it with double screw extruder；
(3) after twin-screw extruder, raw material after extrusion is subjected to blowfilm shaping with single screw rod extrusion blow machine；
(4) it is molded postcooling and forms film, finally cutting, bag making and packing.
Step (2) extrusion temperature is divided into 4 areas, and first area's temperature is 155 DEG C, and second area's temperature is 170 DEG C, and the 3rd
Area's temperature is 185 DEG C, and the 4th area's temperature is 200 DEG C.
Charge temperature is 70-90 DEG C during step (3) blown film, and compression plasticization temperature is 120-122 DEG C, blow-up ratio 1:
2-3, hauling speed 4-5m/min.
Beneficial effects of the present invention：
The present invention uses polyethylene and cellulose acetate to add properly mixed filler and auxiliary agent for base-material, passes through each control
Condition differenceization processed compares and takes optimal procedure parameters, and food pack obtained is made to have high mechanical properties, stretch-proof and matter
The advantages of amount is light, tear resistance is good, and with good low-temperature impact resistance；Meanwhile by adding compound preservative, make
Food pack has effects that antibacterial, anti-mildew becomes and expelling parasite, and raw material is easy to get, is pure natural, safety and environmental protection；The preparation of the present invention
Method is simple, and cost of material is low, and to the of less demanding of mechanical equipment, easy to promote large-scale and use has good economy
Benefit.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with embodiment, it is clear that described reality
It is only part of the embodiment of the present invention to apply example, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
All other embodiment that logical technical staff is obtained without creative efforts belongs to what the present invention protected
Scope.
A kind of food pack is made of following raw material：55-70 parts of polyethylene, 15-20 parts of cellulose acetate,
10-15 parts of filler, 8-10 parts of compound preservative, 2-3 parts of zwitterionic surfactant, 1-2 parts of epoxidized soybean oil, polyethylene glycol
1-2 parts, nanometer Au55(SCH2CH3)310.5-1 parts of cluster；
Filler is that calcium-base bentonite, glass fibre, porous hydroxyapatite, talcum powder according to mass ratio are 10:13-
15:4-7:11-15 is mixed with；
Compound preservative is that chitosan, dihydrochalcone, Chinese herbal medicine particle according to mass ratio are 10:1-2：3-6 is mixed
It is prepared；
Wherein, the preparation method of Chinese herbal medicine particle is：It is 10-20 parts each that Schisandra chinensis, garden burnet, the bark of ash, the fleece-flower root are weighed respectively,
It puts it into respectively in filter medicine bag, adds 400-800 parts of water of water, after impregnating 25-30min, be boiled with soft fire 30-35min, filter, close
And filtrate, 50-80 parts of cornstarch are added in into filtrate, 45-50 DEG C of constant temperature stirs 8-10min, is placed in oven and dried grinding
Into particle；
Zwitterionic surfactant is alkyl dimethyl betaine or alkyl dimethyl sulfoethyl glycine betaine；
Nanometer Au55(SCH2CH3)31Cluster is a kind of nano-sized materials based on Aurum clusters, has unique caged knot
Structure, micro addition can enhance the tensile strength of food pack；
The preparation method of the food pack, includes the following steps：
(1) polyethylene is added in high mixer and is heated to molten condition, added cellulose acetate and filler, temperature rise to
35-40min is stirred with the speed of 1200r/min after 145-165 DEG C, then pressurized treatments 25-30min is carried out to it, pressure is
200MPa；
(2) by compound preservative, zwitterionic surfactant, epoxidized soybean oil, polyethylene glycol, nanometer Au55
(SCH2CH3)31Cluster is added in the melt blended material of step (1), after stirring 20-30min with 1400r/min speed, adds in
In double screw extruder, extruder grain is carried out to it with double screw extruder, extrusion temperature is divided into 4 areas, and first area's temperature is
155 DEG C, second area's temperature is 170 DEG C, and the 3rd area's temperature is 185 DEG C, and the 4th area's temperature is 200 DEG C；
(3) after twin-screw extruder, raw material after extrusion is subjected to blowfilm shaping with single screw rod extrusion blow machine, during blown film
Charge temperature is 70-90 DEG C, and compression plasticization temperature is 120-122 DEG C, blow-up ratio 1:2-3, hauling speed 4-5m/min；
(4) it is molded postcooling and forms film, finally cutting, bag making and packing.
Embodiment 1
A kind of food pack, its preparation method include the following steps：
(1) molten condition, 15 parts of addition cellulose acetate and filler 10 will be heated in 55 parts of addition high mixers of polyethylene
Part, temperature rises to after 145 DEG C and stirs 35min with the speed of 1200r/min, then carries out pressurized treatments 25min to it, and pressure is
200MPa；
(2) by 8 parts of compound preservative, 2 parts of alkyl dimethyl betaine, 1 part of epoxidized soybean oil, polyethylene glycol 1 part, nanometer
Au55(SCH2CH3)310.5 part of cluster is added in the melt blended material of step (1), after stirring 20min with 1400r/min speed,
It adds in double screw extruder, extruder grain is carried out to it with double screw extruder, extrusion temperature is divided into 4 areas, first area's temperature
It spends for 155 DEG C, second area's temperature is 170 DEG C, and the 3rd area's temperature is 185 DEG C, and the 4th area's temperature is 200 DEG C；
(3) after twin-screw extruder, raw material after extrusion is subjected to blowfilm shaping with single screw rod extrusion blow machine, during blown film
Charge temperature is 70 DEG C, and compression plasticization temperature is 120 DEG C, blow-up ratio 1:2, hauling speed 4m/min；
(4) it is molded postcooling and forms film, finally cutting, bag making and packing.
Filler is that calcium-base bentonite, glass fibre, porous hydroxyapatite, talcum powder according to mass ratio are 10:13:4:
11 are mixed with；
Compound preservative is that chitosan, dihydrochalcone, Chinese herbal medicine particle according to mass ratio are 10:1：3 are mixed with
It forms；Wherein, the preparation method of Chinese herbal medicine particle is：Each 10 parts of Schisandra chinensis, garden burnet, the bark of ash, the fleece-flower root are weighed respectively, respectively will
It is put into filter medicine bag, adds 400 parts of water of water, after impregnating 25min, is boiled with soft fire 30min, is filtered, merging filtrate, is added into filtrate
Enter 50 parts of cornstarch, 45 DEG C of constant temperature stir 8min, are placed in oven and dried and are ground into particle.
Embodiment 2
A kind of food pack, its preparation method include the following steps：
(1) molten condition, 18 parts of addition cellulose acetate and filler 12 will be heated in 65 parts of addition high mixers of polyethylene
Part, temperature rises to after 155 DEG C and stirs 37min with the speed of 1200r/min, then carries out pressurized treatments 28min to it, and pressure is
200MPa；
(2) by 9 parts of compound preservative, 2.5 parts of alkyl dimethyl sulfoethyl glycine betaine, 1.5 parts of epoxidized soybean oil, poly- second two
1.5 part, nanometer Au of alcohol55(SCH2CH3)310.7 part of cluster is added in the melt blended material of step (1), with 1400r/min speed
After stirring 25min, add in double screw extruder, extruder grain is carried out to it with double screw extruder, extrusion temperature is divided into 4
Area, first area's temperature are 155 DEG C, and second area's temperature is 170 DEG C, and the 3rd area's temperature is 185 DEG C, and the 4th area's temperature is 200 DEG C；
(3) after twin-screw extruder, raw material after extrusion is subjected to blowfilm shaping with single screw rod extrusion blow machine, during blown film
Charge temperature is 80 DEG C, and compression plasticization temperature is 121 DEG C, blow-up ratio 1:2.5, hauling speed 4.5m/min；
(4) it is molded postcooling and forms film, finally cutting, bag making and packing.
Filler is that calcium-base bentonite, glass fibre, porous hydroxyapatite, talcum powder according to mass ratio are 10:14:6:
13 are mixed with；
Compound preservative is that chitosan, dihydrochalcone, Chinese herbal medicine particle according to mass ratio are 10:1.5：5 mixing systems
It is standby to form；Wherein, the preparation method of Chinese herbal medicine particle is：Each 15 parts of Schisandra chinensis, garden burnet, the bark of ash, the fleece-flower root are weighed respectively, respectively
It puts it into filter medicine bag, adds 600 parts of water of water, after impregnating 27min, be boiled with soft fire 33min, filter, merging filtrate, into filtrate
65 parts of cornstarch are added in, 48 DEG C of constant temperature stir 9min, are placed in oven and dried and are ground into particle.
Embodiment 3
A kind of food pack, its preparation method include the following steps：
(1) molten condition, 20 parts of addition cellulose acetate and filler 15 will be heated in 70 parts of addition high mixers of polyethylene
Part, temperature rises to after 165 DEG C and stirs 40min with the speed of 1200r/min, then carries out pressurized treatments 30min to it, and pressure is
200MPa；
(2) by 10 parts of compound preservative, 3 parts of alkyl dimethyl betaine, 2 parts of epoxidized soybean oil, 2 parts of polyethylene glycol, receive
Rice Au55(SCH2CH3)311 part of cluster is added in the melt blended material of step (1), after stirring 30min with 1400r/min speed,
It adds in double screw extruder, extruder grain is carried out to it with double screw extruder, extrusion temperature is divided into 4 areas, first area's temperature
It spends for 155 DEG C, second area's temperature is 170 DEG C, and the 3rd area's temperature is 185 DEG C, and the 4th area's temperature is 200 DEG C；
(3) after twin-screw extruder, raw material after extrusion is subjected to blowfilm shaping with single screw rod extrusion blow machine, during blown film
Charge temperature is 90 DEG C, and compression plasticization temperature is 122 DEG C, blow-up ratio 1:3, hauling speed 5m/min；
(4) it is molded postcooling and forms film, finally cutting, bag making and packing.
Filler is that calcium-base bentonite, glass fibre, porous hydroxyapatite, talcum powder according to mass ratio are 10:15:7:
15 are mixed with；
Compound preservative is that chitosan, dihydrochalcone, Chinese herbal medicine particle according to mass ratio are 10:2：6 are mixed with
It forms；Wherein, the preparation method of Chinese herbal medicine particle is：Each 20 parts of Schisandra chinensis, garden burnet, the bark of ash, the fleece-flower root are weighed respectively, respectively will
It is put into filter medicine bag, adds 800 parts of water of water, after impregnating 30min, is boiled with soft fire 35min, is filtered, merging filtrate, is added into filtrate
Enter 80 parts of cornstarch, 50 DEG C of constant temperature stir 10min, are placed in oven and dried and are ground into particle.
Food pack prepared by embodiment 1-3 is to Escherichia coli, sporeforming bacillus, staphylococcus aureus, lactic acid chain
The bacteriostasis rate of coccus etc. reaches more than 95%.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is in order to preferably explain the present invention
Principle and practical application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only
It is limited by claims and its four corner and equivalent.
Claims (6)
1. a kind of food pack, which is characterized in that be made of following raw material：55-70 parts of polyethylene, cellulose acetate
15-20 parts, 10-15 parts of filler, 8-10 parts of compound preservative, 2-3 parts of zwitterionic surfactant, 1-2 parts of epoxidized soybean oil,
1-2 parts of polyethylene glycol, nanometer Au55(SCH2CH3)310.5-1 parts of cluster；
The food pack is prepared by following steps：
(1) polyethylene is added in high mixer and is heated to molten condition, added cellulose acetate and filler, temperature rise to 145-
35-40min is stirred with the speed of 1200r/min after 165 DEG C, then pressurized treatments 25-30min, pressure 200MPa are carried out to it；
(2) by compound preservative, zwitterionic surfactant, epoxidized soybean oil, polyethylene glycol, nanometer Au55(SCH2CH3)31
Cluster is added in the melt blended material of step (1), after stirring 20-30min with 1400r/min speed, adds in twin-screw extrusion
In machine, extruder grain is carried out to it with double screw extruder；
(3) after twin-screw extruder, raw material after extrusion is subjected to blowfilm shaping with single screw rod extrusion blow machine；
(4) it is molded postcooling and forms film, finally cutting, bag making and packing.
2. a kind of food pack according to claim 1, which is characterized in that the filler is calcium-base bentonite, glass
Fiber, porous hydroxyapatite, talcum powder are 10 according to mass ratio:13-15:4-7:11-15 is mixed with.
3. a kind of food pack according to claim 1, which is characterized in that the compound preservative is chitosan, two
Hydrogen chalcone, Chinese herbal medicine particle are 10 according to mass ratio:1-2：3-6 is mixed with.
4. the preparation method of a kind of food pack according to claim 1, which is characterized in that include the following steps：
(1) polyethylene is added in high mixer and is heated to molten condition, added cellulose acetate and filler, temperature rise to 145-
35-40min is stirred with the speed of 1200r/min after 165 DEG C, then pressurized treatments 25-30min, pressure 200MPa are carried out to it；
(2) by compound preservative, zwitterionic surfactant, epoxidized soybean oil, polyethylene glycol, nanometer Au55(SCH2CH3)31
Cluster is added in the melt blended material of step (1), after stirring 20-30min with 1400r/min speed, adds in twin-screw extrusion
In machine, extruder grain is carried out to it with double screw extruder；
(3) after twin-screw extruder, raw material after extrusion is subjected to blowfilm shaping with single screw rod extrusion blow machine；
(4) it is molded postcooling and forms film, finally cutting, bag making and packing.
5. the preparation method of a kind of food pack according to claim 4, which is characterized in that the step (2) squeezes
Temperature is divided into 4 areas, and first area's temperature is 155 DEG C, and second area's temperature is 170 DEG C, and the 3rd area's temperature is 185 DEG C, the 4th area's temperature
It spends for 200 DEG C.
A kind of 6. preparation method of food pack according to claim 4, which is characterized in that step (3) blown film
When charge temperature be 70-90 DEG C, compression plasticization temperature be 120-122 DEG C, blow-up ratio 1:2-3, hauling speed 4-5m/min.
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| CN201711416578.5A CN108084540A (en) | 2017-12-25 | 2017-12-25 | A kind of food pack and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111777813A (en) * | 2020-07-10 | 2020-10-16 | 马鞍山市欧凯包装材料有限公司 | Anti-tearing food packaging bag film and preparation method thereof |
| CN112280153A (en) * | 2020-11-16 | 2021-01-29 | 丽的包装(广东)有限公司 | Traditional Chinese medicine granule packaging bag and preparation method thereof |
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| US20060062814A1 (en) * | 2002-11-22 | 2006-03-23 | Stier Roger E | Oral compositions which mask the salty taste of salts |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777813A (en) * | 2020-07-10 | 2020-10-16 | 马鞍山市欧凯包装材料有限公司 | Anti-tearing food packaging bag film and preparation method thereof |
| CN112280153A (en) * | 2020-11-16 | 2021-01-29 | 丽的包装(广东)有限公司 | Traditional Chinese medicine granule packaging bag and preparation method thereof |
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