CN106947145A - A kind of ice cream class packaging film - Google Patents
A kind of ice cream class packaging film Download PDFInfo
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- CN106947145A CN106947145A CN201710265786.3A CN201710265786A CN106947145A CN 106947145 A CN106947145 A CN 106947145A CN 201710265786 A CN201710265786 A CN 201710265786A CN 106947145 A CN106947145 A CN 106947145A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—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
- 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
-
- 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
Abstract
The invention discloses a kind of ice cream class packaging film, it is related to packaging for foodstuff technical field of membrane, its composition includes：Low density polyethylene (LDPE), ultra-low density polyethylene, carboxymethyl chitosan, rilanit special, sodium alginate, polyglyceryl fatty acid ester, lauric monoglyceride, herb liquid, polymer alumina, terpene resin, zeolite powder, gelatin, ethanol, deionized water.Its preparation method is simply, conveniently.Food package film has the effect of obvious anti-Staphylococcus aureus and listeria, prevents pollution of such bacterium to ice cream based food；Packaging film safety non-toxic, without worrying food additives, the problems such as remnant nitrite；Packaging film flexible, is difficult tear breakage, with good market application foreground.
Description
Technical field：
The present invention relates to food package film preparing technical field, and in particular to a kind of ice cream class packaging film and its preparation side
Method.
Background technology：
Food product packing film is, for being wrapped in food surface, mainly to decompose microbial bacterial and extraneous contamination to isolate
The entrance of thing, prevents and extends the high polymer material of food spoilage.Antibacterial film packaging is most beneficial, its energy for food
Constantly suppress the growth of microorganism by antiseptic, it is ensured that the safety of food, extend the shelf life of food.Consumer is allowed to enjoy
By higher quality of the life.
In daily life, particularly summer people are especially keen to ice cream class, occur all kinds of ice cream class business in market
Product, it is intended to be stored in refrigerator, and one is that ice cream quality is preserved to temperature needs, and two be to prevent germ contamination.Ice cream class
Food is because containing cream, cheese etc. more than material, be particularly easy to pollution, it needs to preserve at low temperature, this based food easy infection gold
Staphylococcus aureus and listeria.Containing protein abundance, moisture is more, while the food containing certain starch, such as cream, ice
Swash and insult, ice lolly etc. easily forms toxin after being polluted by staphylococcus aureus.And listeria is most fatal food-borne
One of substance, can survive at low ambient temperatures.It was once reported from January, 2014 in January, 2015 the Kansas State in 2015
Between, have 5 and be admitted to hospital because of the cream product that food has listeria, wherein 3 people are dead.Therefore ice cream based food is more
Strengthen food hygiene requirement, wherein packaging for foodstuff is exactly one of key factor, enhanced package link, it is to avoid pollution, simultaneously
Packaging also acts as the effect of decoration aesthetic appeal.
The content of the invention：
The technical problems to be solved by the invention are to provide a kind of with high-efficiency pollution-proof dye, particular for golden yellow grape
Coccus, listeria, and it is nontoxic, raw material is easy to get, the simple ice cream class packaging film of preparation method.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of ice cream class packaging film, includes the raw material of following number：
60-100 parts of low density polyethylene (LDPE), 50-120 parts of ultra-low density polyethylene, 50-150 parts of carboxymethyl chitosan, hydrogenation
15-30 parts of castor oil, 15-30 parts of sodium alginate, 2-10 parts of polyglyceryl fatty acid ester, 2-10 parts of lauric monoglyceride, Chinese medicine
20-60 parts of liquid, 2-10 parts of polymer alumina, 5-20 parts of terpene resin, 2-10 parts of zeolite powder, 2-10 parts of gelatin, 2-20 parts of ethanol,
10-100 parts of deionized water.
Wherein Chinese medicine includes：2-50 parts of chrysanthemum, 2-50 parts of Sculellaria barbata, 2-50 parts of the bark of eucommia, 2-50 parts of the coptis, radix scrophulariae 2-50
Part, 2-50 parts of the bark of official magnolia, 2-50 parts of the root of herbaceous peony, 2-50 parts of the root of fangji, 2-50 parts of golden cypress, 2-50 parts of Buddha's hand, 2-50 parts of sweet wormwood.
Its preparation method is as follows：
(1) chrysanthemum of selection high-quality, Sculellaria barbata, the bark of eucommia, the coptis, radix scrophulariae, the bark of official magnolia, the root of herbaceous peony, the root of fangji, golden cypress, Buddha's hand add
Into 10 times of water, 10-30min is boiled in big fire heating, after switch to small fire and endure 12-24h slowly, after be cooled to room temperature, be stored at room temperature precipitation
Overnight, precipitation is abandoned after takes supernatant 2000-5000rpm/min to centrifuge, and abandons precipitation and takes supernatant, it is 0.02-500 that rear supernatant, which carries out aperture,
The filtering of μm supermicro filtration membrane, takes filtrate to obtain herb liquid；
(2) carboxymethyl chitosan is added in 5 times of water, being stored at room temperature 8-24h is swelled it, rear 200-1000rpm/
Min is stirred, and obtains being uniformly dissolved carboxymethyl chitosan solution；
(3) add sodium alginate into the carboxymethyl chitosan solution of preparation under stirring, polyglyceryl fatty acid ester, the moon silicic acid
Monoglyceride, polymer alumina, terpene resin, ethanol is warming up to 30-50 DEG C of stirring 15-60min, adds acid or alkaloid substance is adjusted
PH value is saved to 6-7, then 100-500rpm/min 50-60 DEG C insulated and stirred 20-40min, it is rear to stand room temperature cooling, mixed
Solution；
(4) added into high-speed mixer step 3 mixed solution, low density polyethylene (LDPE), ultra-low density polyethylene, gelatin,
Zeolite powder, herb liquid and remaining deionized water, 1000-3000rpm/min stir, and are sufficiently stirred for being well mixed it, obtain
To into film liquid；
(5) acid or alkali thing will be added into film liquid 2000-5000rpm/min homogeneous scattered 10-20min again before film forming
Matter adjusts pH value to 5-7, then 1000-5000rpm/min 20-40 DEG C insulated and stirred 20-40min, rear to stand room temperature cooling, after
It will be mixed into after film liquid adds banbury, banbury 10-30min and be transferred in extruder, it is thin in melting extrusion at 150-200 DEG C
Film, most afterwards through naturally cooling to room temperature.
The acid or alkaline matter：Acid substance be one kind in dilute hydrochloric acid solution, acetum, carbon acid solution or it is a kind of with
On；Alkaline matter is the one or more in sodium carbonate, sodium acid carbonate or NaOH.
The beneficial effects of the invention are as follows：Food package film prepared by the present invention has obvious anti-Staphylococcus aureus, Lee
The effect of this special Pseudomonas bacterium, effectively prevents ice cream class rotten and microbiological contamination；Packaging film safety non-toxic, without worrying food additives
Problem；Packaging film flexible, is difficult tear damaged.
Embodiment：
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1：
60 parts of low density polyethylene (LDPE), 80 parts of ultra-low density polyethylene, 50 parts of carboxymethyl chitosan, 15 parts of rilanit special,
15 parts of sodium alginate, 6 parts of polyglyceryl fatty acid ester, 4 parts of lauric monoglyceride, 40 parts of herb liquid, 5 parts of polymer alumina, terpene
6 parts of olefine resin, 5 parts of zeolite powder, 6 parts of gelatin, 5 parts of ethanol, 40 parts of deionized water.
Wherein Chinese medicine includes：10 parts of chrysanthemum, 12 parts of Sculellaria barbata, 10 parts of the bark of eucommia, 10 parts of the coptis, 10 parts of radix scrophulariae, 15 parts of the bark of official magnolia,
15 parts of the root of herbaceous peony, 15 parts of the root of fangji, 12 parts of golden cypress, 10 parts of Buddha's hand, 15 parts of sweet wormwood.
Packaging film preparation is carried out according to above-mentioned formula, comprised the following steps that：
Its preparation method is as follows：
(1) chrysanthemum of selection high-quality, Sculellaria barbata, the bark of eucommia, the coptis, radix scrophulariae, the bark of official magnolia, the root of herbaceous peony, the root of fangji, golden cypress, Buddha's hand add
Into 10 times of water, 15min is boiled in big fire heating, after switch to small fire and endure 12h slowly, after decoction boiling down is thick, be cooled to room temperature, room temperature
Staticly settle overnight, after abandon precipitation and take supernatant 2000rpm/min to centrifuge, abandon precipitation and take supernatant, it is 0.02- that rear supernatant, which carries out aperture,
500 μm of supermicro filtration membrane filterings, take filtrate to obtain herb liquid；
(2) carboxymethyl chitosan is added in 5 times of water, being stored at room temperature 8h is swelled it, rear 800rpm/min stirrings are obtained
To being uniformly dissolved carboxymethyl chitosan solution；
(3) add sodium alginate into the carboxymethyl chitosan solution of preparation under stirring, polyglyceryl fatty acid ester, the moon silicic acid
Monoglyceride, polymer alumina, terpene resin, ethanol is warming up to 30 DEG C of stirring 20min, adds acid or alkaloid substance regulation pH value
It is rear to stand room temperature cooling to 6, then 55 DEG C of insulated and stirred 40min of 500rpm/min, obtain mixed solution；
(4) added into high-speed mixer step 3 mixed solution, low density polyethylene (LDPE), ultra-low density polyethylene, gelatin,
Zeolite powder, herb liquid and remaining deionized water, 1000rpm/min stir, and are sufficiently stirred for being well mixed it, obtain film forming
Liquid；
(5) acid or alkaloid substance regulation PH will be added into film liquid 2000rpm/min homogeneous scattered 20min again before film forming
Value is rear to stand room temperature cooling to 7, then 20 DEG C of insulated and stirred 20min of 1000rpm/min, after will be mixed into film liquid and add banburying
It is transferred to after machine, banbury 20min in extruder, in melt-extruded film at 150 DEG C, most afterwards through naturally cooling to room temperature.
The acidic materials are dilute hydrochloric acid solution and acetum；
The alkaline matter is sodium carbonate liquor and sodium bicarbonate solution；
Embodiment 2：
80 parts of low density polyethylene (LDPE), 80 parts of ultra-low density polyethylene, 60 parts of carboxymethyl chitosan, 20 parts of rilanit special,
20 parts of sodium alginate, 15 parts of polyglyceryl fatty acid ester, 15 parts of lauric monoglyceride, 60 parts of herb liquid, 15 parts of polymer alumina,
8 parts of terpene resin, 10 parts of zeolite powder, 10 parts of gelatin, 10 parts of ethanol, 40 parts of deionized water.
Wherein Chinese medicine includes：20 parts of chrysanthemum, 20 parts of Sculellaria barbata, 25 parts of the bark of eucommia, 25 parts of the coptis, 25 parts of radix scrophulariae, 20 parts of the bark of official magnolia,
20 parts of the root of herbaceous peony, 25 parts of the root of fangji, 20 parts of golden cypress, 25 parts of Buddha's hand, 25 parts of sweet wormwood.
Packaging film preparation is carried out according to above-mentioned formula, comprised the following steps that：
Its preparation method is as follows：
(1) chrysanthemum of selection high-quality, Sculellaria barbata, the bark of eucommia, the coptis, radix scrophulariae, the bark of official magnolia, the root of herbaceous peony, the root of fangji, golden cypress, Buddha's hand add
Into 10 times of water, 20min is boiled in big fire heating, after switch to small fire and endure 12h slowly, after decoction boiling down is thick, be cooled to room temperature, room temperature
Staticly settle overnight, after abandon precipitation and take supernatant 2000rpm/min to centrifuge, abandon precipitation and take supernatant, it is 0.02- that rear supernatant, which carries out aperture,
500 μm of supermicro filtration membrane filterings, take filtrate to obtain herb liquid；
(2) carboxymethyl chitosan is added in 5 times of water, being stored at room temperature 10h is swelled it, rear 1000rpm/min stirrings,
Obtain being uniformly dissolved carboxymethyl chitosan solution；
(3) add sodium alginate into the carboxymethyl chitosan solution of preparation under stirring, polyglyceryl fatty acid ester, the moon silicic acid
Monoglyceride, polymer alumina, terpene resin, ethanol is warming up to 30 DEG C of stirring 30min, adds acid or alkaloid substance regulation pH value
It is rear to stand room temperature cooling to 7, then 50 DEG C of insulated and stirred 20min of 500rpm/min, obtain mixed solution；
(4) added into high-speed mixer step 3 mixed solution, low density polyethylene (LDPE), ultra-low density polyethylene, gelatin,
Zeolite powder, herb liquid and remaining deionized water, 2000rpm/min stir, and are sufficiently stirred for being well mixed it, obtain film forming
Liquid；
(5) acid or alkaloid substance regulation PH will be added into film liquid 2000rpm/min homogeneous scattered 20min again before film forming
Value is rear to stand room temperature cooling to 7, then 20 DEG C of insulated and stirred 20min of 1000rpm/min, after will be mixed into film liquid and add banburying
It is transferred to after machine, banbury 15min in extruder, in melt-extruded film at 150 DEG C, most afterwards through naturally cooling to room temperature.
The acid or alkaline matter：Acid substance is dilute hydrochloric acid solution；
The alkaline matter is sodium hydroxide solution；
Carry out setting three groups in experiment application, experiment respectively in the embodiment that the present invention is provided：
A groups：Without herb liquid；
B groups：Contain herb liquid；
C groups：Deionized water is compareed；
Experiment 1：Above-mentioned experiment packet is respectively to listeria (Listeria), staphylococcus aureus
(Staphylococccus aureus) carries out bacteriostatic test research, and test strain is provided by local universities and colleges.
Experimental method：In an aseptic environment, each bacterium culture medium is prepared, plate is down flat using diameter 9cm culture dish, waits to cultivate
After base solidification, listeria, staphylococcus aureus 100-200cfu/ wares are individually inoculated with into culture dish respectively, using painting
Cloth method is per ware bacterial strain even spread, and every kind of bacterial strain prepares 2 flat boards, after A groups, B group samples, wherein A are added into every ware respectively
It is put in each use diameter 1cm of B groups film in the middle of culture dish, C groups draw 0.5ml deionized waters and are coated with each culture dish, each flat board
Culture is inverted, respectively at 24h, 48h, 72h, 96h, 120h observes each ware situation.
Experimental result is as follows：Observing time measures each antibacterial circle diameter size：Mm (average value)
Listeria
Staphylococcus aureus
Conclusion：From above-mentioned experimental result：Packaging film comprising decoction component is to listeria and golden yellow grape
Coccus bacteriostasis is than not comprising the strong of decoction；And the formula packaging film plays bacteriostasis to every kind of bacterial strain；Over time
Extension, packaging film does not weaken to bacterial strain inhibitory action, and useful effect can be at least played in 5 days.
Experiment 2：Above-mentioned experiment packet is respectively to listeria (Listeria), staphylococcus aureus
(Staphylococccus aureus) carries out bacteriostatic test research, and test strain is provided by local universities and colleges.
Experimental method：In an aseptic environment, each bacterium culture medium is prepared, plate is down flat using diameter 9cm culture dish, waits to cultivate
After base solidification, Salmonella, enteropathogenic E. Coli, jejunum campylobacter Pseudomonas, proteus are individually inoculated with into culture dish respectively
Category, staphylococcus aureus 100-200cfu/ wares, using rubbing method per ware bacterial strain even spread, every kind of bacterial strain prepares 2 and put down
Plate, after A groups, B groups, C group samples are added into every ware respectively, wherein each use diameter 1cm of A and B groups film is put in painting culture dish
Centre, C groups draw 0.5ml deionized waters and are coated with each culture dish, and each flat board is inverted culture, respectively at 24h, 48h, 72h, 96h,
120h observes each ware situation.
Experimental result is as follows：Observing time measures antibacterial circle diameter size：Mm (average value)
Listeria
Staphylococcus aureus
Conclusion：From above-mentioned experimental result：Packaging film comprising decoction component is wrapped to every kind of bacterial strain bacteriostasis than not
Containing the strong of decoction；And the formula packaging film plays bacteriostasis to every kind of bacterial strain；As time went on, packaging film presses down to bacterial strain
Make of not weakening, useful effect can be at least played in 5 days.And with the increase of decoction component in formula, packaging film is in list
Inhibitory effect strengthens in the time of position.
In summary experimental result shows that the packaging film inhibitory effect of this formula is better than traditional packaging film, and safety, nothing
Poison, and the food preservation time can be extended, and strong prevent the secondary pollution of ice cream based food, and dirt in transit
Dye.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (4)
1. a kind of ice cream class packaging film, it is characterised in that：Include the raw material of following number：
60-100 parts of low density polyethylene (LDPE), 50-120 parts of ultra-low density polyethylene, 50-150 parts of carboxymethyl chitosan, hydrogenated castor
Oily 15-30 parts, 15-30 parts of sodium alginate, 2-10 parts of polyglyceryl fatty acid ester, 2-10 parts of lauric monoglyceride, herb liquid 20-
60 parts, 2-10 parts of polymer alumina, 5-20 parts of terpene resin, 2-10 parts of zeolite powder, 2-10 parts of gelatin, 2-20 parts of ethanol, go from
Sub- water 10-100 parts.
2. ice cream class packaging film according to claim 1, it is characterised in that：Herb liquid includes：2-50 parts, half of chrysanthemum
2-50 parts of lotus, 2-50 parts of the bark of eucommia, 2-50 parts of the coptis, 2-50 parts of radix scrophulariae, 2-50 parts of the bark of official magnolia, 2-50 parts of the root of herbaceous peony, 2-50 parts of the root of fangji, Huang
2-50 parts of cypress, 2-50 parts of Buddha's hand, 2-50 parts of sweet wormwood.
3. ice cream class packaging film according to claim 2, it is characterised in that：Preparation method is as follows：
(1) chrysanthemum of selection high-quality, Sculellaria barbata, the bark of eucommia, the coptis, radix scrophulariae, the bark of official magnolia, the root of herbaceous peony, the root of fangji, golden cypress, Buddha's hand are added to 10
10-30min is boiled in big fire heating in times water, after switch to small fire and endure 12-24h slowly, after be cooled to room temperature, be stored at room temperature and precipitated
Night, after abandon precipitation and take supernatant 2000-5000rpm/min to centrifuge, abandon precipitation and take supernatant, it is 0.02-500 μm that rear supernatant, which carries out aperture,
Supermicro filtration membrane is filtered, and takes filtrate to obtain herb liquid；
(2) carboxymethyl chitosan is added in 5 times of water, being stored at room temperature 8-24h is swelled it, and rear 200-1000rpm/min is stirred
Mix, obtain being uniformly dissolved carboxymethyl chitosan solution；
(3) add sodium alginate into the carboxymethyl chitosan solution of preparation under stirring, polyglyceryl fatty acid ester, the moon silicic acid list it is sweet
Grease, polymer alumina, terpene resin, ethanol is warming up to 30-50 DEG C of stirring 15-60min, adds acid or alkaloid substance regulation PH
Value is rear to stand room temperature cooling to 6-7, then 100-500rpm/min 50-60 DEG C insulated and stirred 20-40min, obtains mixed solution；
(4) step 3 mixed solution, low density polyethylene (LDPE), ultra-low density polyethylene, gelatin, zeolite are added into high-speed mixer
Powder, herb liquid and remaining deionized water, 1000-3000rpm/min stir, and are sufficiently stirred for being well mixed it, obtain into
Film liquid；
(5) it will be added acid into film liquid 2000-5000rpm/min homogeneous scattered 10-20min again or alkaloid substance adjusted before film forming
PH value is saved to 5-7, then 1000-5000rpm/min 20-40 DEG C insulated and stirred 20-40min, it is rear to stand room temperature cooling, after will be mixed
It is even to add banbury into film liquid, it is transferred in extruder after banbury 10-30min, in melt-extruded film at 150-200 DEG C, most
By naturally cooling to room temperature.
4. ice cream class packaging film according to claim 3, it is characterised in that：The acid or alkaline matter：Acid substance is
One or more in dilute hydrochloric acid solution, acetum, carbon acid solution；Alkaline matter is sodium carbonate, sodium acid carbonate or hydrogen
One or more in sodium oxide molybdena.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265786.3A CN106947145A (en) | 2017-04-21 | 2017-04-21 | A kind of ice cream class packaging film |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710265786.3A CN106947145A (en) | 2017-04-21 | 2017-04-21 | A kind of ice cream class packaging film |
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| CN106947145A true CN106947145A (en) | 2017-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447590A (en) * | 2017-07-29 | 2017-12-08 | 马鞍山市康辉纸箱纸品有限公司 | A kind of fungus-proofing package paper |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601953A (en) * | 2013-11-08 | 2014-02-26 | 苏州新颖新材料科技股份有限公司 | Plant-source bacteriostatic composite thin film and preparation method thereof |
-
2017
- 2017-04-21 CN CN201710265786.3A patent/CN106947145A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601953A (en) * | 2013-11-08 | 2014-02-26 | 苏州新颖新材料科技股份有限公司 | Plant-source bacteriostatic composite thin film and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447590A (en) * | 2017-07-29 | 2017-12-08 | 马鞍山市康辉纸箱纸品有限公司 | A kind of fungus-proofing package paper |
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Application publication date: 20170714 |