CN206297233U - A kind of Novel antibacterial CPP films - Google Patents
A kind of Novel antibacterial CPP films Download PDFInfo
- Publication number
- CN206297233U CN206297233U CN201621350254.7U CN201621350254U CN206297233U CN 206297233 U CN206297233 U CN 206297233U CN 201621350254 U CN201621350254 U CN 201621350254U CN 206297233 U CN206297233 U CN 206297233U
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- China
- Prior art keywords
- polypropylene
- layers
- corona
- heat sealing
- layer
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Abstract
The utility model discloses a kind of Novel antibacterial CPP films, the film includes the polypropylene PP corona layers with polypropylene PP as material；Polypropylene PP sandwich layers with polypropylene PP as material；Add with polypropylene PP as material and in mass ratio the nano antibacterial agent heat sealing functions layer of 5% inorganic nano bacteriostatic agent；Upper strata is polypropylene PP corona layers, and bottom is nano antibacterial agent heat sealing functions layer, and polypropylene PP sandwich layers are located between corona processing layer and nano antibacterial agent heat sealing functions layer；The polypropylene PP corona layers, polypropylene PP sandwich layers, nano antibacterial agent heat sealing functions layer are pasted successively.The utility model carries out the tape casting production due to adding 5% inorganic nano bacteriostatic agent in hot sealing layer, assigns product bacteria resistance function, while as reinforcing material, improving the toughness of film, it is ensured that the quality of product in packaging and bag.
Description
Technical field
The utility model belongs to packaging technical field of membrane, more particularly to a kind of Novel antibacterial CPP films.
Background technology
At present, analyzed from packaging angle, cause food, medicine and other items putrid and deteriorated, and then influence food, medicine etc.
First growth for being primarily due to bacterium of object storing phase, breeding.Antibacterial technology is used in packing articles production
Bacteria growing inhibiting can not only be played on the premise of keeping packaging material routinely to use function, can also reduced to human health
The usage amount of the chemical bactericide caused harm with environment, it is also significant to environmental protection.
Existing packing film bacteria resistance function is poor, film toughness is bad, it cannot be guaranteed that the quality of product.
The content of the invention
The purpose of this utility model is to provide a kind of Novel antibacterial CPP films and preparation method thereof, it is intended to solved existing
Film bacteria resistance function it is poor, film toughness is bad, it cannot be guaranteed that the problem of product quality.
The utility model is achieved in that a kind of Novel antibacterial CPP films, and the Novel antibacterial CPP films include：
Polypropylene PP corona layers；
Polypropylene PP sandwich layers；
Nano antibacterial agent heat sealing functions layer；
Upper strata is polypropylene PP corona layers, and bottom is nano antibacterial agent heat sealing functions layer, and polypropylene PP sandwich layers are located at corona
Between process layer and nano antibacterial agent heat sealing functions layer；The polypropylene PP corona layers, polypropylene PP sandwich layers, nano antibacterial agent heat
Envelope functional layer is pasted successively.
The utility model another object is to provide a kind of food box using above-mentioned Novel antibacterial CPP film packagings.
The utility model has the advantages and positive effects that：The new anti-Novel antibacterial CPP films are due in hot sealing layer
5% inorganic nano bacteriostatic agent of middle addition, carries out the tape casting production, assigns product bacteria resistance function, while as reinforcing material, improving
The toughness of film, it is ensured that the quality of product in packaging and bag.
Brief description of the drawings
Fig. 1 is the Novel antibacterial CPP membrane structure figures that the utility model embodiment is provided.
In figure：1st, polypropylene PP corona layers；2nd, polypropylene PP sandwich layers；3rd, one functional layer is sealed.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain this practicality
It is new, it is not used to limit the utility model.
Application principle of the present utility model is described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, the Novel antibacterial CPP films that the utility model embodiment is provided, including polypropylene PP corona layers 1,
Polypropylene PP sandwich layers 2, nano antibacterial agent heat sealing functions layer 3；Upper strata is polypropylene PP corona layers, and bottom is sealed for nano antibacterial agent
Functional layer, polypropylene PP sandwich layers are located between corona processing layer and nano antibacterial agent heat sealing functions layer；The polypropylene PP coronas
Layer, polypropylene PP sandwich layers, nano antibacterial agent heat sealing functions layer are pasted successively；
The polypropylene PP corona layers, polypropylene PP sandwich layers, nano antibacterial agent heat sealing functions layer are with polypropylene PP as material
Material；Addition accounts for the inorganic nano bacteriostatic agent of Novel antibacterial CPP total film mass 5% in nano antibacterial agent heat sealing functions layer, makes
Inorganic nano bacteriostatic agent is evenly distributed in polypropylene PP materials, and the inorganic nano bacteriostatic agent of the addition is new for assigning
Antibacterial CPP films bacteria resistance function and the increase thin film strengths of Novel antibacterial CPP and toughness.
The utility model embodiment provides a kind of preparation method of Novel antibacterial CPP films, including：
The raw material feeding raw material cabin of proper proportion will be prepared, negative pressure of vacuum is transported to extruder hopper, and extruder is plastified into
Melt, melt is extruded by extrusion screw rod, and filter filtering, the allocated device is assigned to die head；
Thereafter by tape-casting, film is processed in traction unit through corona one side, draws harvest parent roll.Parent roll passes through
Ageing Treatment, finally cuts into film.
Extruder screw diameter 65mm, L/D=32, common gradation type screw rod.The barrel zone temperature of extruder be 210 DEG C, 230
℃、240℃、255℃、265℃；
Tape-casting temperature is 265 DEG C.
The distributor carries out automatic measuring thickness and shows the thermal expansion spiral shell that records and feed back on die head using R gamma thickness gages
On silk, automatic die regulation and control gap；The mean error of casting films thickness can be made within 2%；The die head uses T-shaped mouth
Mould.
By also needing to carry out air knife treatment after tape-casting, the cooling of 1# chill rolls, 2# chill rolls are carried out after air knife treatment
Cooling, then carries out being processed through corona one side in traction unit；
1# chill roll cooling means is：Using running water through cooler heat exchanger, coolant water temperature is 0~-5 DEG C；
2# chill roll cooling means is：Using running water through cooler heat exchanger, coolant water temperature is 8 DEG C~10 DEG C.
Further, the thickness 20um~30um of the Novel antibacterial CPP films of preparation；Mist degree 5.5%~6%；Tensile strength,
Zong/Heng≤40/20MPa；Elongation at break, Zong/Heng≤400%/500%；Angle tear strength, Zong/Heng≤100kgf/cm/
140kgf/cm；Biao Mian Zhang Li≤42 × 10-3N/m.
Further, the film packaging storage that will be cut.
Structure of the present utility model is further described with reference to operation principle.
The bacteriostatic agent of 5% inorganic nano is added in hot sealing layer, it is evenly distributed in the middle of primary raw material PP material, assigned
The antibacterial function of film；The addition of inorganic nano bacteriostatic agent simultaneously can increase the intensity of thin-film material, improve the toughness of film, protect
The quality of product in card packaging and bag.
In the embodiment of the utility model one, polypropylene PP corona layers can also add the bacteriostatic agent of 5% inorganic nano, make it
It is evenly distributed in the middle of primary raw material PP material, assigns film antibacterial function.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (3)
1. a kind of Novel antibacterial CPP films, it is characterised in that the Novel antibacterial CPP films include：
Polypropylene PP corona layers；
Polypropylene PP sandwich layers；
Nano antibacterial agent heat sealing functions layer；
Upper strata is polypropylene PP corona layers, and bottom is nano antibacterial agent heat sealing functions layer, and polypropylene PP sandwich layers are located at sided corona treatment
Between layer and nano antibacterial agent heat sealing functions layer；The polypropylene PP corona layers, polypropylene PP sandwich layers, nano antibacterial agent heat-sealing work(
Ergosphere is pasted successively.
2. Novel antibacterial CPP films as claimed in claim 1, it is characterised in that the Novel antibacterial CPP film thicknesses are：
20um~30um.
3. the food box of Novel antibacterial CPP film packagings described in a kind of utilization claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621350254.7U CN206297233U (en) | 2016-12-09 | 2016-12-09 | A kind of Novel antibacterial CPP films |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621350254.7U CN206297233U (en) | 2016-12-09 | 2016-12-09 | A kind of Novel antibacterial CPP films |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206297233U true CN206297233U (en) | 2017-07-04 |
Family
ID=59213450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621350254.7U Expired - Fee Related CN206297233U (en) | 2016-12-09 | 2016-12-09 | A kind of Novel antibacterial CPP films |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206297233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111746937A (en) * | 2019-03-26 | 2020-10-09 | 沈阳理工大学 | Packaging material and packaging bag |
-
2016
- 2016-12-09 CN CN201621350254.7U patent/CN206297233U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111746937A (en) * | 2019-03-26 | 2020-10-09 | 沈阳理工大学 | Packaging material and packaging bag |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170704 Termination date: 20191209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |