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CN107266874A - Waterproof food package film - Google Patents

Waterproof food package film Download PDF

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Publication number
CN107266874A
CN107266874A CN201710533324.5A CN201710533324A CN107266874A CN 107266874 A CN107266874 A CN 107266874A CN 201710533324 A CN201710533324 A CN 201710533324A CN 107266874 A CN107266874 A CN 107266874A
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China
Prior art keywords
parts
alginate
package film
food package
waterproof
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201710533324.5A
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Chinese (zh)
Inventor
张启明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sino Union (beijing) International Media Co Ltd
Original Assignee
Sino Union (beijing) International Media Co Ltd
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Priority to CN201710533324.5A priority Critical patent/CN107266874A/en
Publication of CN107266874A publication Critical patent/CN107266874A/en
Withdrawn legal-status Critical Current

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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
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/244—All polymers belonging to those covered by group B32B27/36
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/73—Hydrophobic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • C08J2489/00—Characterised by the use of proteins; 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • 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
    • 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
    • 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
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
    • 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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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Packages (AREA)
  • Wrappers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a kind of waterproof food package film, including top layer, intermediate layer and bottom, the top layer and bottom are pet layer, and the pet layer is prepared from by the raw material of following weight parts：400 parts of PET300,90 110 parts of thermoplastic starch, 24 parts of POE g MAH, 0.2 0.8 parts of methyl methacrylate, 0.6 1.2 parts of tributyl 2-acetylcitrate, 24 parts of titanium dioxide, 0.5 1.5 parts of alginate, 0.5 2.5 parts of waterproofing agent.Waterproof food package film of the present invention, physical and mechanical properties is good, seal it is smooth, can anti-oxidant and waterproof, wholesomeness is excellent.

Description

Waterproof food package film
Technical field
The present invention relates to a kind of packaging film, more particularly to a kind of waterproof food package film.
Background technology
The development of food package film has long history.Far away from Han dynasty of China, during Zhen He travelling to the West, using beeswax bag Water shutoff fruit, to delay fruit to be dehydrated.The packaging of food is all to use traditional packaging material for a long time.With green package Rise, substantial amounts of development and research has been done in countries in the world in terms of packaging for foodstuff.Food package film refers to by parcel, leaching Stain, coating, sprinkling and be covered in one layer on the food surface or multi-component food internal interface guarantor with porous network structure Cuticula.For numerous food product, the most important functional character of food package film is to prevent the migration of moisture from having to hinder moist, from And prevent food because going bad caused by dehydration or water suction.Because the water content of food not only influences its aesthetic quality and microorganism Growth and breeding, and the chemistry for causing food spoilage and enzyme reaction can also be had a strong impact on.Outside the migration of moisture removal, oxygen and two The migration of carbon oxide gas can also have a strong impact on the quality and storage-stable of food.As the high food of fat content is deposited in oxygen In the lower easy fresh fruit of vegetables that becomes sour in oxygen content Gao Shiyin respiratory intensities easy greatly aging, corruption, and work as carbon dioxide It is also easily putrid and deteriorated because being easily caused anaerobic respiration when concentration is high, oxygen concentration is low.Now may be selected have certain oxygen barrier and The film of carbon dioxide is hindered to carry out coating to food to extend the shelf life of food.
The invention provides a kind of waterproof food package film, excellent combination property.
The content of the invention
For above shortcomings in the prior art, the technical problems to be solved by the invention are to provide a kind of waterproof food Product packaging film.
The present invention seeks to what is be achieved through the following technical solutions：
A kind of waterproof food package film, including top layer, intermediate layer and bottom, the top layer and bottom are pet layer, described Pet layer is prepared from by the raw material of following weight parts：300-400 parts of PET, 90-110 parts of thermoplastic starch, POE-g-MAH 2- 4 parts, 0.2-0.8 parts of methyl methacrylate, 0.6-1.2 parts of tributyl 2-acetylcitrate, 2-4 parts of titanium dioxide, alginate 0.5-1.5 parts, 0.5-2.5 parts of waterproofing agent.
Preferably, the alginate is mixture one or more in calcium alginate, potassium alginate, sodium alginate.
It is highly preferred that described alginate is mixed by calcium alginate, potassium alginate, sodium alginate, the marine alga Sour calcium, potassium alginate, the mass ratio of sodium alginate are (1-3)：(1-3)：(1-3).
Preferably, the waterproofing agent is one or more in soybean protein isolate, zeins, wheat gluten protein Mixture.
It is highly preferred that described waterproofing agent by soybean protein isolate, zeins, wheat gluten protein mixing and Into the soybean protein isolate, zeins, the mass ratio of wheat gluten protein are (1-3)：(1-3)：(1-3).
Waterproof food package film of the present invention, physical and mechanical properties is good, seal it is smooth, can anti-oxidant and waterproof, it is safe and healthy Property is excellent.
Embodiment
With reference to embodiment, the present invention is described further, as described below, is only the preferable implementation to the present invention Example, not does the limitation of other forms, any those skilled in the art are possibly also with the disclosure above to the present invention Technology contents be changed to the equivalent embodiment changed on an equal basis.It is every without departing from the present invention program content, according to the present invention Technical spirit any simple modification that following examples are made or equivalent variations, all fall within protection scope of the present invention.
Each raw material introduction in embodiment：
PET, uses the trade mark that Suzhou and Mei Xing plastic cement Co., Ltd provide for PT 7086 PET.
POE-g-MAH, use Dongguan City Zhuo Limei plastic cement Co., Ltd provide the trade mark for 0203 POE-G-MAH.
Methyl methacrylate, No. CAS：80-62-6, it is specific using uncommon love (Shanghai) the chemical conversion industry Development Co., Ltd of ladder The model HY of offer methyl methacrylate.
Tributyl 2-acetylcitrate, No. CAS：77-90-7, it is specific to be provided using Shanghai Mai Ruier chemical technologies Co., Ltd Model M26567 tributyl 2-acetylcitrate.
Titanium dioxide, No. CAS：1317-80-2, the specific model provided using Shanghai Industry Co., Ltd in future R-902+ rutile titanium dioxide.
Thermoplastic starch, using number of patent application：200710041319.9 prepared by the method for middle embodiment 1, it reacts former The parts by weight of material are：Esterified 80 parts of starch, 20 parts of D-sorbite, 3 parts of rosin glyceride, 25 parts of water, the esterified starch moisture content Content be 13wt%.
Potassium alginate, No. CAS：9005-36-1, the mesh provided using uncommon love (Shanghai) the chemical conversion industry Development Co., Ltd of ladder Number is the potassium alginate of 100 mesh.
Sodium alginate, No. CAS：9005-38-3, uses the mesh number that Dalian U.S. logical sequence Technology Co., Ltd. provides for 100 Purpose sodium alginate.
Calcium alginate, No. CAS：9005-35-0, uses the mesh number that this hundred full chemistries (Shanghai) Co., Ltd. provides for 100 Purpose calcium alginate.
Soybean protein isolate, No. CAS：9010-10-0, the soybean point provided using Shandong West Asia chemical industry Co., Ltd From albumen.
Zeins, No. CAS：9010-66-6, using ladder, uncommon love (Shanghai) chemical conversion industry Development Co., Ltd provides Zeins.
Wheat gluten protein, No. CAS：93384-22-6, is provided using Si Mei springs bio tech ltd of Shenzhen Wheat gluten protein.
The resistance to cooking food packaging adhesive speciallies of JA-504, are prepared using following methods：Ethyl acetate is used for diluent, Hydroxyl polyester-polyurethane is first diluted to required solid content (35%), then by hydroxyl polyester-polyurethane：Isocyanates Addition product=100：15 proportioning adds isocyanate addition product, fully stirs evenly；Then it is coated with using cable roll or smooth roll, coating Measure 4g/m2, compounding machine drying tunnel temperature risen progressively by 50 DEG C of porch to 80 DEG C of exit；Finally placed under temperature 60 C 60h, then be placed in 4 days at room temperature.
Embodiment 1
Pet layer raw material (parts by weight)：360 parts of PET, 100 parts of thermoplastic starch, POE-g-MAH2 parts, methyl methacrylate 0.6 part of ester, 0.8 part of tributyl 2-acetylcitrate, 2 parts of titanium dioxide, 1.2 parts of alginate, 1.8 parts of waterproofing agent.
Described alginate is 1 in mass ratio by calcium alginate, potassium alginate, sodium alginate：1：1 is uniformly mixed Obtain.
Described waterproofing agent is 1 in mass ratio by soybean protein isolate, zeins, wheat gluten protein：1：1 stirs Mix well mixed obtain.
The method for preparing above-mentioned waterproof food package film, comprises the following steps：
(1) PET is used into vacuum drying chamber 4 hours of 150 DEG C of dryings；
(2) by dried PET, thermoplastic starch, POE-g-MAH, methyl methacrylate, the fourth of acetyl tributyl citrate three Ester, titanium dioxide, alginate, waterproofing agent are added in mixing and blending machine, and rotating speed is 600 revs/min, stirs 20min, is mixed Close uniform compound；
(3) compound of step (2) is granulated using banbury, 180 DEG C of mixing temperature, mixing time 3 minutes, screw rod turns Speed is 50 revs/min, obtains master batch；
(4) master batch is molded film forming using injection machine, barrel temperature is 260 DEG C, 240 DEG C of nozzle temperature, mold temperature 100 DEG C, injection pressure 80MPa is cooled to room temperature, obtains pet layer, and thickness is 12 μm；
(5) top layer, intermediate layer, bottom are stacked successively from top to bottom, wherein between top layer and intermediate layer, intermediate layer and bottom The resistance to cooking food packaging adhesive speciallies of JA-504 are coated between layer, adhesive coated weight is 15g/m2, composite bed is obtained, The top layer and the pet layer that bottom is step (4), the intermediate layer is aluminium foil layer；Composite bed passes through double roller fashion of extrusion up and down Compound Machining, wherein the control pressure in double roller extrusion cladding area is 100kN/m up and down, then dried 10 minutes through 80 DEG C.Obtain reality Apply the food package film of example 1.
Embodiment 2
It is substantially the same manner as Example 1, differ only in：Described alginate presses matter by potassium alginate, sodium alginate Amount is than being 1：1 is uniformly mixed and obtains.Obtain the waterproof food package film of embodiment 2.
Embodiment 3
It is substantially the same manner as Example 1, differ only in：Described alginate presses matter by calcium alginate, sodium alginate Amount is than being 1：1 is uniformly mixed and obtains.Obtain the waterproof food package film of embodiment 3.
Embodiment 4
It is substantially the same manner as Example 1, differ only in：Described alginate presses matter by calcium alginate, potassium alginate Amount is than being 1：1 is uniformly mixed and obtains.Obtain the waterproof food package film of embodiment 4.
Embodiment 5
It is substantially the same manner as Example 1, differ only in：Described waterproofing agent is by zeins, wheat gluten egg It is 1 in mass ratio in vain：1 is uniformly mixed and obtains.Obtain the waterproof food package film of embodiment 5.
Embodiment 6
It is substantially the same manner as Example 1, differ only in：Described waterproofing agent is by soybean protein isolate, wheat gluten egg It is 1 in mass ratio in vain：1 is uniformly mixed and obtains.Obtain the waterproof food package film of embodiment 6.
Embodiment 7
It is substantially the same manner as Example 1, differ only in：Described waterproofing agent is by soybean protein isolate, the molten egg of corn alcohol It is 1 in mass ratio in vain：1 is uniformly mixed and obtains.Obtain the waterproof food package film of embodiment 7.
Test case 1
The elongation at break of the waterproof food package film prepared to embodiment 1-7 is tested, reference《GB 13022 Stretched plastic film method for testing performance》Detection.Specific test result is shown in Table 1.
Table 1：Elongation at break test data table
Comparing embodiment 1 and embodiment 2-4, embodiment 1 (calcium alginate, potassium alginate, sodium alginate compounding) fracture is stretched Long rate is substantially better than embodiment 2-4 (the two any compounding in calcium alginate, potassium alginate, sodium alginate)；Comparing embodiment 1 with Embodiment 5-7, embodiment 1 (soybean protein isolate, zeins, wheat gluten protein compounding) elongation at break is substantially excellent In embodiment 5-7 (the two any compounding in soybean protein isolate, zeins, wheat gluten protein).
Test case 2
Water resistance to embodiment 1-7 waterproof food package film is tested, with reference to ASTM E398 detections.Specifically Test result is shown in Table 2.
Table 2：Water resistance test data table
Sample Moisture-vapor transmission (g/m2/br/mm)
Embodiment 1 0.02
Embodiment 2 0.17
Embodiment 3 0.21
Embodiment 4 0.15
Embodiment 5 0.08
Embodiment 6 0.14
Embodiment 7 0.20
Comparing embodiment 1 and embodiment 2-4, embodiment 1 (calcium alginate, potassium alginate, sodium alginate compounding) water proofing property Embodiment 2-4 (the two any compounding in calcium alginate, potassium alginate, sodium alginate) can be substantially better than；Comparing embodiment 1 and reality A 5-7 is applied, embodiment 1 (soybean protein isolate, zeins, wheat gluten protein compounding) water resistance is substantially better than reality Apply a 5-7 (the two any compounding in soybean protein isolate, zeins, wheat gluten protein).

Claims (1)

1. a kind of waterproof food package film, including top layer, intermediate layer and bottom, it is characterised in that the top layer and bottom are Pet layer, the pet layer is prepared from by the raw material of following weight parts：300-400 parts of PET, 90-110 parts of thermoplastic starch, 2-4 parts of POE-g-MAH, 0.2-0.8 parts of methyl methacrylate, 0.6-1.2 parts of tributyl 2-acetylcitrate, titanium dioxide 2-4 Part, 0.5-1.5 parts of alginate, 0.5-2.5 parts of waterproofing agent；
Described alginate is mixed by calcium alginate, potassium alginate, sodium alginate, the calcium alginate, potassium alginate, The mass ratio of sodium alginate is (1-3)：(1-3)：(1-3)；
Described waterproofing agent is mixed by soybean protein isolate, zeins, wheat gluten protein, the soybean separation Albumen, zeins, the mass ratio of wheat gluten protein are (1-3)：(1-3)：(1-3).
CN201710533324.5A 2017-07-03 2017-07-03 Waterproof food package film Withdrawn CN107266874A (en)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN107759815A (en) * 2017-11-03 2018-03-06 河南工程学院 A kind of obdurability pectin group compound film and preparation method thereof
CN108215392A (en) * 2017-12-01 2018-06-29 东莞俏美肌生物科技有限公司 A kind of food package film
CN108239377A (en) * 2018-03-01 2018-07-03 苏州维洛克电子科技有限公司 A kind of degradable polyester sheet material containing sodium alginate and preparation method thereof

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