CN106476385A - A kind of Novel antibacterial CPP thin film and preparation method thereof - Google Patents
A kind of Novel antibacterial CPP thin film and preparation method thereof Download PDFInfo
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- CN106476385A CN106476385A CN201611131850.0A CN201611131850A CN106476385A CN 106476385 A CN106476385 A CN 106476385A CN 201611131850 A CN201611131850 A CN 201611131850A CN 106476385 A CN106476385 A CN 106476385A
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- layer
- thin film
- corona
- novel antibacterial
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Classifications
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- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being 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
- 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
- B32B27/16—Layered products comprising a layer of synthetic resin specially treated, e.g. irradiated
-
- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- 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
-
- 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
- B32B2250/242—All polymers belonging to those covered by group B32B27/32
-
- 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
- Packages (AREA)
Abstract
The invention discloses a kind of Novel antibacterial CPP thin film and preparation method thereof, described thin film includes corona layer, sandwich layer, heat sealing functions layer；Upper strata is corona layer, and bottom is heat sealing functions layer, and corona layer, sandwich layer, heat sealing functions layer are all with polypropylene PP as material；It is separately added into 5% inorganic nano antibacterial in mass ratio in heat sealing functions layer or corona layer, so that inorganic nano antibacterial is evenly distributed in polypropylene PP material；Preparation method include dispensing, fusion plastification cast film, cooling and shaping, sided corona treatment, time cured, cutting, packaging and storage.The present invention due to adding 5% inorganic nano antibacterial in hot sealing layer or corona layer, carries out the tape casting production, gives product bacteria resistance function, simultaneously as reinforcing material, improve the toughness of thin film it is ensured that in packaging and bag product quality.
Description
Technical field
The invention belongs to packaging technical field of membrane, more particularly, to a kind of Novel antibacterial CPP thin film and preparation method thereof.
Background technology
At present, to analyze from packaging angle, to cause the article such as food, medicine putrid and deteriorated, and then to affect food, medicine etc.
First of the object storing phase is primarily due to the growth of antibacterial, breeding.Adopt antibacterial technology in packing articles produce
Bacteria growing inhibiting can not only be played on the premise of keeping packaging material conventional using function, can also reduce to human health
The usage amount of the chemical bactericide working the mischief with environment, also significant to environmental conservation.
Existing packing film bacteria resistance function is poor, film toughness is bad it cannot be guaranteed that the quality of product.
Content of the invention
It is an object of the invention to provide a kind of Novel antibacterial CPP thin film and preparation method thereof is it is intended to solve existing thin
Film bacteria resistance function is poor, film toughness is bad it cannot be guaranteed that the problem of the quality of product.
The present invention is achieved in that a kind of Novel antibacterial CPP thin film, including corona layer, sandwich layer, heat sealing functions layer；On
Layer is corona layer, and bottom is heat sealing functions layer, and sandwich layer is located between corona processing layer and heat sealing functions layer；Described corona layer, core
Layer, heat sealing functions layer are pasted successively；
Described corona layer, sandwich layer, heat sealing functions layer are all with polypropylene PP as material；Heat sealing functions layer or corona layer are pressed
Mass ratio is separately added into the inorganic nano antibacterial accounting for Novel antibacterial CPP total film mass 5%, makes inorganic nano antibacterial uniform
Be distributed in polypropylene PP material, the inorganic nano antibacterial of described addition is used for giving Novel antibacterial CPP thin film antibacterial work(
And the thin film strength of Novel antibacterial CPP and toughness can be increased.
Another object of the present invention is to provide a kind of preparation method of Novel antibacterial CPP thin film, including：
The raw material preparing proper proportion is sent into raw material cabin, negative pressure of vacuum is transported to extruder hopper, and extruder plastifies into
Melt, melt is extruded through extrusion screw rod, and filter filters, and the allocated device is assigned to die head；
Thereafter through tape-casting, thin film is processed through corona one side in traction unit, draws harvest parent roll.Parent roll passes through
Ageing Treatment, finally cuts into thin film.
Further, the barrel zone temperature of extruder is 210 DEG C, 230 DEG C, 240 DEG C, 255 DEG C, 265 DEG C；
Tape-casting temperature is 265 DEG C.
Further, described allotter carries out automatic measuring thickness using R gamma thickness gage and shows recording and feeding back on die head
On thermal expansion screw, automatic die regulates and controls gap；The mean error that casting films thickness can be made is within 2%；Described die head is adopted
With T-shaped mouth mould.
Further, also need to carry out air knife process after tape-casting, air knife carries out 1# chill roll cooling, 2# after processing
Chill roll cools down, and then carries out processing through corona one side in traction unit；
1# chill roll cooling means is：Using tap water cooled device heat exchanger, coolant water temperature is 0～-5 DEG C；
2# chill roll cooling means is：Using tap water cooled device heat exchanger, coolant water temperature is 8 DEG C～10 DEG C.
Further, the thickness 20um～30um of the Novel antibacterial CPP thin film of preparation；Mist degree 5.5%～6%；Tensile strength,
Vertical/horizontal 40/20MPa；Elongation at break, vertical/horizontal 400%/500%；Angle tear strength, vertical/horizontal 100kgf/cm/
140kgf/cm；Surface tension 42 × 10-3N/m.
Another object of the present invention is to provide a kind of food box using above-mentioned Novel antibacterial CPP film packaging.
The present invention has the advantages and positive effects that：This new anti-Novel antibacterial CPP thin film is due to adding in hot sealing layer
Enter 5% inorganic nano antibacterial, carry out the tape casting production, give product bacteria resistance function, simultaneously as reinforcing material, improve thin film
Toughness it is ensured that packaging and bag in product quality.
Brief description
Fig. 1 is Novel antibacterial CPP membrane structure figure provided in an embodiment of the present invention.
In figure：1st, corona layer；2nd, sandwich layer；3rd, seal one functional layer.
Fig. 2 is the preparation method flow chart of novel environment-friendly provided in an embodiment of the present invention antibacterial CPP thin film.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to
Limit the present invention.
Below in conjunction with the accompanying drawings the application principle of the present invention is described in detail.
As shown in figure 1, Novel antibacterial CPP thin film provided in an embodiment of the present invention, including corona layer 1, sandwich layer 2, heat-sealing work(
Ergosphere 3；Upper strata is corona layer, and bottom is heat sealing functions layer, and sandwich layer is located between corona processing layer and heat sealing functions layer；Described electricity
Dizzy layer, sandwich layer, heat sealing functions layer are pasted successively；
Described corona layer, sandwich layer, heat sealing functions layer are all with polypropylene PP as material；Heat sealing functions layer or corona layer are pressed
Mass ratio is separately added into the inorganic nano antibacterial accounting for Novel antibacterial CPP total film mass 5%, makes inorganic nano antibacterial uniform
Be distributed in polypropylene PP material, the inorganic nano antibacterial of described addition is used for giving Novel antibacterial CPP thin film antibacterial work(
And the thin film strength of Novel antibacterial CPP and toughness can be increased.
As shown in Fig. 2 the preparation method of Novel antibacterial CPP thin film provided in an embodiment of the present invention, including：
S101：The raw material preparing proper proportion is sent into raw material cabin, negative pressure of vacuum is transported to extruder hopper, and extruder is moulded
Chemical conversion melt, melt is extruded through extrusion screw rod, and filter filters, and the allocated device is assigned to die head；
S102：Thereafter through tape-casting, thin film is processed through corona one side in traction unit, draws harvest parent roll.Female
Volume, through Wetted constructures, finally cuts into thin film.
Further, by the film packaging warehouse-in of cutting.
Further, extruder screw diameter 65mm, L/D=32, common gradation type screw rod.The barrel zone temperature of extruder is
210℃、230℃、240℃、255℃、265℃；
Tape-casting temperature is 265 DEG C.
Further, described allotter carries out automatic measuring thickness using R gamma thickness gage and shows recording and feeding back on die head
On thermal expansion screw, automatic die regulates and controls gap；The mean error that casting films thickness can be made is within 2%；Described die head is adopted
With T-shaped mouth mould.
Further, also need to carry out air knife process after tape-casting, air knife carries out 1# chill roll cooling, 2# after processing
Chill roll cools down, and then carries out processing through corona one side in traction unit；
1# chill roll cooling means is：Using tap water cooled device heat exchanger, coolant water temperature is 0～-5 DEG C；
2# chill roll cooling means is：Using tap water cooled device heat exchanger, coolant water temperature is 8 DEG C～10 DEG C.
Further, the thickness 20um～30um of the Novel antibacterial CPP thin film of preparation；Mist degree 5.5%～6%；Tensile strength,
Vertical/horizontal 40/20MPa；Elongation at break, vertical/horizontal 400%/500%；Angle tear strength, vertical/horizontal 100kgf/cm/
140kgf/cm；Surface tension 42 × 10-3N/m.
With reference to operation principle, the application of the present invention is further described.
Add appropriate antibacterial so as to be evenly distributed in the middle of primary raw material PP material in hot sealing layer, give thin film suppression
The function of bacterium；The addition of inorganic nano antibacterial simultaneously can increase the intensity of thin-film material, improves the toughness of thin film；In hot sealing layer
Add 5% inorganic nano antibacterial, carry out the tape casting production, give product bacteria resistance function, simultaneously as reinforcing material, improve thin
The toughness of film it is ensured that in packaging and bag product quality.
Due to adding 5% inorganic nano antibacterial in hot sealing layer, carry out the tape casting production, give product bacteria resistance function,
Simultaneously as reinforcing material, improve the toughness of thin film it is ensured that in packaging and bag product quality.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of Novel antibacterial CPP thin film is it is characterised in that described Novel antibacterial CPP thin film includes corona layer, sandwich layer, heat-sealing
Functional layer；Upper strata is corona layer, and bottom is heat sealing functions layer, and sandwich layer is located between corona processing layer and heat sealing functions layer；Described
Corona layer, sandwich layer, heat sealing functions layer are pasted successively；
Described corona layer, sandwich layer, heat sealing functions layer are all with polypropylene PP as material；Quality is pressed in heat sealing functions layer or corona layer
Ratio is separately added into the inorganic nano antibacterial accounting for Novel antibacterial CPP total film mass 5%, so that inorganic nano antibacterial is uniformly divided
In polypropylene PP material, it is antibacterial and increase that the inorganic nano antibacterial of described addition is used for giving Novel antibacterial CPP thin film to cloth
The thin film strength of Novel antibacterial CPP and toughness.
2. a kind of preparation method of Novel antibacterial CPP thin film as claimed in claim 1 is it is characterised in that described Novel antibacterial
The preparation method of CPP thin film includes：
The raw material preparing proper proportion is sent into raw material cabin, negative pressure of vacuum is transported to extruder hopper, and extruder plastifies into melt,
Melt is extruded through extrusion screw rod, and filter filters, and the allocated device is assigned to die head；
Thereafter through tape-casting, thin film is processed through corona one side in traction unit, draws harvest parent roll；Parent roll is through overaging
Process, finally cut into thin film.
3. the preparation method of Novel antibacterial CPP thin film as claimed in claim 2 is it is characterised in that the barrel zone temperature of extruder
For 210 DEG C, 230 DEG C, 240 DEG C, 255 DEG C, 265 DEG C；
Tape-casting temperature is 265 DEG C.
4. the preparation method of Novel antibacterial CPP thin film as claimed in claim 2 is it is characterised in that described allotter is penetrated using R
Line calibrator carries out automatic measuring thickness and shows on the thermal expansion screw recording and feeding back on die head, and automatic die regulates and controls gap；Institute
State die head and adopt T-shaped mouth mould.
5. the preparation method of Novel antibacterial CPP thin film as claimed in claim 2 is it is characterised in that after tape-casting
Also need to carry out air knife process, air knife carries out 1# chill roll cooling, the cooling of 2# chill roll after processing, then carry out in traction unit warp
Corona one side is processed；
1# chill roll cooling means is：Using tap water cooled device heat exchanger, coolant water temperature is 0～-5 DEG C；
2# chill roll cooling means is：Using tap water cooled device heat exchanger, coolant water temperature is 8 DEG C～10 DEG C.
6. Novel antibacterial CPP thin film as claimed in claim 2 preparation method it is characterised in that preparation Novel antibacterial CPP
Thickness 20um～the 30um of thin film；Mist degree 5.5%～6%.
7. the food box of Novel antibacterial CPP film packaging described in a kind of utilization claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611131850.0A CN106476385A (en) | 2016-12-09 | 2016-12-09 | A kind of Novel antibacterial CPP thin film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611131850.0A CN106476385A (en) | 2016-12-09 | 2016-12-09 | A kind of Novel antibacterial CPP thin film and preparation method thereof |
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| Publication Number | Publication Date |
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| CN106476385A true CN106476385A (en) | 2017-03-08 |
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| CN201611131850.0A Pending CN106476385A (en) | 2016-12-09 | 2016-12-09 | A kind of Novel antibacterial CPP thin film and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107521201A (en) * | 2017-10-17 | 2017-12-29 | 安徽国泰印务有限公司 | A kind of novel C PP casting films and preparation method thereof |
| CN109016751A (en) * | 2018-08-01 | 2018-12-18 | 宁波瑞成包装材料有限公司 | Efficient antibacterial CPP film and production method thereof |
| CN110724422A (en) * | 2019-11-06 | 2020-01-24 | 铨治材料科技(上海)有限公司 | Preparation method of water-based inorganic nano bacteriostatic fresh-keeping functional coating for food packaging |
| CN111670232A (en) * | 2017-12-01 | 2020-09-15 | 黄富健 | Functional sheet with antibacterial performance and capable of being written in and erased |
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| CN104827730A (en) * | 2015-01-30 | 2015-08-12 | 安徽松泰包装材料有限公司 | Non-stretched general CPP thin film producing method |
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2016
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| JP2009289159A (en) * | 2008-05-30 | 2009-12-10 | Pentel Corp | Handwriting input system |
| CN103358637A (en) * | 2013-07-24 | 2013-10-23 | 上海海顺新型药用包装材料股份有限公司 | Antimicrobial self-clean pharmaceutical packaging film and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107521201A (en) * | 2017-10-17 | 2017-12-29 | 安徽国泰印务有限公司 | A kind of novel C PP casting films and preparation method thereof |
| CN111670232A (en) * | 2017-12-01 | 2020-09-15 | 黄富健 | Functional sheet with antibacterial performance and capable of being written in and erased |
| CN109016751A (en) * | 2018-08-01 | 2018-12-18 | 宁波瑞成包装材料有限公司 | Efficient antibacterial CPP film and production method thereof |
| CN110724422A (en) * | 2019-11-06 | 2020-01-24 | 铨治材料科技(上海)有限公司 | Preparation method of water-based inorganic nano bacteriostatic fresh-keeping functional coating for food packaging |
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Application publication date: 20170308 |
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