CN108100462A - A kind of nano biological anti-mildew fresh-keeping film and preparation method thereof - Google Patents
A kind of nano biological anti-mildew fresh-keeping film and preparation method thereof Download PDFInfo
- Publication number
- CN108100462A CN108100462A CN201711121344.8A CN201711121344A CN108100462A CN 108100462 A CN108100462 A CN 108100462A CN 201711121344 A CN201711121344 A CN 201711121344A CN 108100462 A CN108100462 A CN 108100462A
- Authority
- CN
- China
- Prior art keywords
- layer
- chitosan
- acetic acid
- base membrane
- mildew fresh
- 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.)
- Pending
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Classifications
-
- 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
- B65D65/42—Applications of coated or impregnated materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
- B05D7/04—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber to surfaces of films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2201/00—Polymeric substrate or laminate
- B05D2201/02—Polymeric substrate
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides a kind of nano biological anti-mildew fresh-keeping film and preparation method thereof, it is made of dielectric layer, chitosan layer, base membrane layer, for chitosan layer between dielectric layer and base membrane layer, the dielectric layer is less than the transparent dielectric layers of 10nm for a layer thickness formed in chitosan layer of sublimating to the cold after silica or zinc sulphide distillation；The chitosan layer is coated on epilamellar one layer of coating for 5 30% chitosan acetic acid solutions；The base membrane layer is any one of OPP, PP, PET, PVA film.The anti-mildew fresh-keeping film that the present invention obtains have the characteristics that anti-mildew fresh-keeping effect it is good, it is at low cost, have no adverse effects to health.Chitosan has free NH+ 2It can be combined and be inhibited bacteria with negative electron；Nanoscale dielectric layer is obtained by vapor deposition, chitosan layer effective time limit can be effectively ensured and with preferable semi-permeable effect, the bacterial accumulation that chitosan layer is adsorbed on dielectric layer is killed, ensures the continuous and effective of chitosan layer.
Description
Technical field
The invention belongs to field of packaging material, and in particular to a kind of nano biological anti-mildew fresh-keeping film.
Background technology
Currently in order to extend effective period of food quality, most food packaging is all carried using MULTILAYER COMPOSITE, aluminium foil are compound etc.
Rise the obstruction seals performance of packaging.But the packaging film cost of these modes is higher, and aluminum products are harmful to health.
The content of the invention
In order to solve the problems, such as that anti-mildew fresh-keeping film is of high cost currently on the market, anti-mildew fresh-keeping effect is inadequate, the object of the invention
It is to provide a kind of nano biological anti-mildew fresh-keeping film.
The purpose of the present invention is be achieved through the following technical solutions：
A kind of nano biological anti-mildew fresh-keeping film, is made of dielectric layer, chitosan layer, base membrane layer, chitosan layer be located at dielectric layer and
Between base membrane layer, the dielectric layer is the thickness formed in chitosan layer of sublimating to the cold after silica or zinc sulphide distillation
Degree is less than the transparent dielectric layers of 10nm；The chitosan layer is coated on epilamellar one layer of painting for 5-30% chitosan acetic acid solutions
Layer；The base membrane layer is any one of OPP, PP, PET, PVA film.
A kind of preparation method of nano biological anti-mildew fresh-keeping film, specific steps include：
（1）Make chitosan acetic acid solution coating fluid：1-5% mass fraction acetums are prepared using deionized water, by chitosan
By mass fraction 5-30% dispersing and dissolvings in prepared acetum, that is, 5-30% chitosan acetic acid solutions are made；
（2）Coating：Using net roll coating method, chitosan acetic acid solution is coated on basement membrane, dry-coated amount control is in 1-5g/
m2；
（3）Vacuum evaporation：It is less than 10 using evaporator control vacuum storehouse-2Pa, controlling evaporating temperature, machine is fast for 800-1200 DEG C
300-800m/min。
Vacuum evaporation, that is, the vacuum vapor plating is that under vacuum, heating evaporation substance is allowed to vaporize, and deposits
Solid film is formed in product surface.Vacuum evaporation be using various forms of thermal energy conversion regimes, make Coating Materials evaporate or
Distillation, becomes the vapour particles with certain energy, vapour particles are transferred to by substantially collisionless rectilinear motion mode
Matrix, particle deposition is on matrix surface and is condensed into film.
Beneficial effects of the present invention：The anti-mildew fresh-keeping film that the present invention obtains have anti-mildew fresh-keeping effect it is good, it is at low cost, to people
The features such as body health has no adverse effects.Chitosan is widely present in nature, and cost is relatively low, is porous structure, has effect by force
Suction-operated, and with free NH+ 2 It can be combined and be inhibited bacteria with negative electron；Nanoscale dielectric layer is obtained by vapor deposition,
Chitosan layer effective time limit can be effectively ensured and with preferable semi-permeable effect, the bacterial accumulation that chitosan layer is adsorbed is being situated between
It is killed on matter layer, ensures the continuous and effective of chitosan layer.
Specific embodiment
The embodiments described below are only part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained without making creative work
Example is applied, belongs to the scope of protection of the invention.
Embodiment 1：
（1）PP films are selected as base membrane layer；
（2）Make chitosan acetic acid solution coating fluid：1-5% mass fraction acetums are prepared using deionized water, by chitosan
By mass fraction 5-30% dispersing and dissolvings in prepared acetum, that is, 5-30% chitosan acetic acid solutions are made；
（3）Coating：Using net roll coating method, chitosan acetic acid solution is coated on basement membrane, dry-coated amount control is in 1-5g/
m2；
（4）Vacuum evaporation：It is less than 10 using evaporator control vacuum storehouse-2Pa, controlling evaporating temperature, machine is fast for 800-1200 DEG C
300-800m/min。
Embodiment 2：
（1）PET film is selected as base membrane layer；
（2）Make chitosan acetic acid solution coating fluid：1-5% mass fraction acetums are prepared using deionized water, by chitosan
By mass fraction 5-30% dispersing and dissolvings in prepared acetum, that is, 5-30% chitosan acetic acid solutions are made；
（3）Coating：Using net roll coating method, chitosan acetic acid solution is coated on basement membrane, dry-coated amount control is in 1-5g/
m2；
（4）Vacuum evaporation：It is less than 10 using evaporator control vacuum storehouse-2Pa, controlling evaporating temperature, machine is fast for 800-1200 DEG C
300-800m/min。
Embodiment 3：
（1）PVA film is selected as base membrane layer；
（2）Make chitosan acetic acid solution coating fluid：1-5% mass fraction acetums are prepared using deionized water, by chitosan
By mass fraction 5-30% dispersing and dissolvings in prepared acetum, that is, 5-30% chitosan acetic acid solutions are made；
（3）Coating：Using net roll coating method, chitosan acetic acid solution is coated on basement membrane, dry-coated amount control is in 1-5g/
m2；
（4）Vacuum evaporation：It is less than 10 using evaporator control vacuum storehouse-2Pa, controlling evaporating temperature, machine is fast for 800-1200 DEG C
300-800m/min。
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (1)
1. a kind of nano biological anti-mildew fresh-keeping film, is made of dielectric layer, chitosan layer, base membrane layer, chitosan layer is located at dielectric layer
Between base membrane layer, it is characterised in that：The dielectric layer for silica or zinc sulphide distillation after sublimated to the cold in chitosan layer
A layer thickness of upper formation is less than the transparent dielectric layers of 10nm；The chitosan layer is coated on for 5-30% chitosan acetic acid solutions
Epilamellar one layer of coating；The base membrane layer is any one of OPP, PP, PET, PVA film；
The preparation process of above-mentioned nano biological anti-mildew fresh-keeping film includes：（1）Make chitosan acetic acid solution coating fluid：Using go from
Sub- water prepares 1-5% mass fraction acetums, and chitosan is molten in prepared acetic acid by mass fraction 5-30% dispersing and dissolvings
In liquid, that is, 5-30% chitosan acetic acid solutions are made；（2）Coating：Using net roll coating method, chitosan acetic acid solution is coated with
On basement membrane, dry-coated amount control is in 1-5g/m2；（3）Vacuum evaporation：It is less than 10 using evaporator control vacuum storehouse-2Pa, control are steamed
It is 800-1200 DEG C to send out temperature, machine speed 300-800m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711121344.8A CN108100462A (en) | 2017-11-14 | 2017-11-14 | A kind of nano biological anti-mildew fresh-keeping film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711121344.8A CN108100462A (en) | 2017-11-14 | 2017-11-14 | A kind of nano biological anti-mildew fresh-keeping film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108100462A true CN108100462A (en) | 2018-06-01 |
Family
ID=62207138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711121344.8A Pending CN108100462A (en) | 2017-11-14 | 2017-11-14 | A kind of nano biological anti-mildew fresh-keeping film and preparation method thereof |
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| Country | Link |
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| CN (1) | CN108100462A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0565178A (en) * | 1991-09-05 | 1993-03-19 | Toppan Printing Co Ltd | Method for conserving food and container used therefor |
| CN104945646A (en) * | 2014-03-28 | 2015-09-30 | 天津科技大学 | Temperature-sensitive controlled-release antimicrobial preservative packaging film and preparation method thereof |
| CN205045204U (en) * | 2015-10-08 | 2016-02-24 | 宿迁市金田塑业有限公司 | Water -fast antibiotic food package complex film |
| CN205185459U (en) * | 2015-11-16 | 2016-04-27 | 皇冠（太仓）胶粘制品有限公司 | Antifog antibiotic membrane |
| CN106192402A (en) * | 2016-07-08 | 2016-12-07 | 陈小初 | Antibacterial and mouldproof polyester-nylon composite superfine fibre with ultrafiltration antibacterial film and production method |
| CN106634130A (en) * | 2016-12-29 | 2017-05-10 | 常德金德镭射科技股份有限公司 | Packaging bag |
-
2017
- 2017-11-14 CN CN201711121344.8A patent/CN108100462A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0565178A (en) * | 1991-09-05 | 1993-03-19 | Toppan Printing Co Ltd | Method for conserving food and container used therefor |
| CN104945646A (en) * | 2014-03-28 | 2015-09-30 | 天津科技大学 | Temperature-sensitive controlled-release antimicrobial preservative packaging film and preparation method thereof |
| CN205045204U (en) * | 2015-10-08 | 2016-02-24 | 宿迁市金田塑业有限公司 | Water -fast antibiotic food package complex film |
| CN205185459U (en) * | 2015-11-16 | 2016-04-27 | 皇冠（太仓）胶粘制品有限公司 | Antifog antibiotic membrane |
| CN106192402A (en) * | 2016-07-08 | 2016-12-07 | 陈小初 | Antibacterial and mouldproof polyester-nylon composite superfine fibre with ultrafiltration antibacterial film and production method |
| CN106634130A (en) * | 2016-12-29 | 2017-05-10 | 常德金德镭射科技股份有限公司 | Packaging bag |
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Application publication date: 20180601 |
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| RJ01 | Rejection of invention patent application after publication |