CN106476384A - A kind of novel environment-friendly high-barrier CPP thin film and preparation method thereof - Google Patents
A kind of novel environment-friendly high-barrier CPP thin film and preparation method thereof Download PDFInfo
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- CN106476384A CN106476384A CN201611131306.6A CN201611131306A CN106476384A CN 106476384 A CN106476384 A CN 106476384A CN 201611131306 A CN201611131306 A CN 201611131306A CN 106476384 A CN106476384 A CN 106476384A
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- Prior art keywords
- layer
- thin film
- barrier
- friendly high
- novel environment
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Classifications
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
-
- 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
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- 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
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
-
- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
-
- 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
Abstract
The invention discloses a kind of novel environment-friendly high-barrier CPP thin film and preparation method thereof, described thin film includes：Corona processing layer with polypropylene PP as material；It is material using ethylene/vinyl alcohol copolymer EVOH and add 4% metallocene POE as the intermediate barrier layer of binding agent；Heat sealing functions layer with polypropylene PP as material；Upper strata is corona processing layer, and bottom is heat sealing functions layer, and intermediate barrier layer is located between corona processing layer and heat sealing functions layer；Preparation method includes：Dispensing, fusion plastification cast film, cooling and shaping, sided corona treatment, time cured, cutting, packaging and storage；The present invention adopts EVOH resin as intermediate barrier layer, adds 4% metallocene POE to improve the bond effect of each layer, barrier layer can effectively improve barriering effect in sandwich layer, it is to avoid barrier layer and product directly contact in bag, improves package security, the feature of environmental protection.
Description
Technical field
The invention belongs to packaging technical field of membrane, more particularly, to a kind of novel environment-friendly high-barrier CPP thin film and its preparation
Method.
Background technology
At present, high-barrier CPP membrane structure is divided into two kinds, the first mostly is 5 layers or 7 layers, barrier layer, in centre, intercepts
Effect is good, but complex manufacturing, and cost is of a relatively high, and thickness is larger；Another be three-decker, barrier layer in outer layer,
It is easy to wrap interior product directly contact, barriering effect is relatively poor, and the poisonous small molecule of easy release, and then pollute product in bag.
Content of the invention
It is an object of the invention to provide a kind of novel environment-friendly high-barrier CPP thin film and preparation method thereof is it is intended to solve
High-barrier CPP film production process is complicated, cost is of a relatively high, thickness is larger, barriering effect is relatively poor, the asking of inadequate environmental protection
Topic.
The present invention is achieved in that a kind of novel environment-friendly high-barrier CPP thin film that the present invention provides, described Novel ring
Guarantor's type high-barrier CPP thin film includes：Corona processing layer with polypropylene PP as material；
For material and 4% metallocene POE is added to hinder as in the middle of binding agent using ethylene/vinyl alcohol copolymer EVOH
Interlayer；
Heat sealing functions layer with polypropylene PP as material；
Upper strata is corona processing layer, and bottom is heat sealing functions layer, and intermediate barrier layer is located at corona processing layer and heat sealing functions
Between layer.
Further, described corona processing layer and heat sealing functions layer are the thin film with anti-static function and bacteria resistance function
Layer.
Another object of the present invention is to provide a kind of preparation method of novel environment-friendly high-barrier 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；
Then adopt three-layer co-extruded curtain coating legal system primary film, prepared primary film is at traction unit is through corona one side
Reason, draws harvest parent roll；
Parent roll, through Wetted constructures, finally cuts into novel environment-friendly high-barrier CPP thin film.
Further, packed after cutting into novel environment-friendly high-barrier CPP thin film and put in storage.
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 environment-friendly high-barrier 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 of the above-mentioned novel environment-friendly high-barrier CPP thin film of packaging.
The present invention has the advantages and positive effects that：Using EVOH resin as intermediate barrier layer, add 4% cyclopentadienyl gold
Belong to the bond effect that POE improves each layer, barrier layer can effectively improve barriering effect in sandwich layer, it is to avoid barrier layer is straight with product in bag
Contact, improves package security, the feature of environmental protection；Product adopts three-layer co-extruded the tape casting to produce, and through functional modification, can give
Product anti-static function, bacteria resistance function.After the present invention presses formula homogeneous blend, tape-casting, product is imitated to vapor water barriers
Fruit is less than 5.0g/ (.d), is less than 2.0cm to the barriering effect of oxygen3/(㎡.d).
Brief description
Fig. 1 is novel environment-friendly high-barrier CPP membrane structure figure provided in an embodiment of the present invention.
In figure：1st, corona processing layer；2nd, intermediate barrier layer；3rd, heat sealing functions layer.
Fig. 2 is the flow chart of novel environment-friendly high-barrier CPP processing film provided in an embodiment of the present invention.
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 explained in detail.
As shown in figure 1, novel environment-friendly high-barrier CPP thin film provided in an embodiment of the present invention, described novel environment-friendly height
Intercept CPP thin film to include：Corona processing layer 1 with polypropylene PP as material；
For material and 4% metallocene POE is added to hinder as in the middle of binding agent using ethylene/vinyl alcohol copolymer EVOH
Interlayer 2；
Heat sealing functions layer 2 with polypropylene PP as material；
Upper strata is corona processing layer, and bottom is heat sealing functions layer, and intermediate barrier layer is located at corona processing layer and heat sealing functions
Between layer.
Further, described corona processing layer and heat sealing functions layer are the thin film with anti-static function and bacteria resistance function
Layer.
As shown in Fig. 2 the preparation method of novel environment-friendly high-barrier 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：Then adopt three-layer co-extruded curtain coating legal system primary film, prepared primary film is in traction unit through corona
One side is processed, and draws harvest parent roll.
S103：Parent roll, through Wetted constructures, finally cuts into novel environment-friendly high-barrier CPP thin film；Carry out packaging to be incorporated to
Storehouse.
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 environment-friendly high-barrier 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.
The novel environment-friendly high-barrier CPP thin film of the present invention with polypropylene PP for sided corona treatment layer material, ethylene/vinyl
Alcohol copolymer EVOH is intermediate barrier layer, adds appropriate metallocene POE as binding agent, in barrier layer 2 in barrier layer 2
Add appropriate metallocene POE as binding agent, intermediate barrier layer can effectively improve barriering effect, it is to avoid to produce in barrier layer and bag
Product directly contact, improves package security, the feature of environmental protection.
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 (9)
1. a kind of novel environment-friendly high-barrier CPP thin film is it is characterised in that described novel environment-friendly high-barrier CPP thin film includes：
Corona processing layer with polypropylene PP as material；
For material and 4% metallocene POE is added to intercept as in the middle of binding agent using ethylene/vinyl alcohol copolymer EVOH
Layer；
Heat sealing functions layer with polypropylene PP as material；
Upper strata is corona processing layer, and bottom is heat sealing functions layer, intermediate barrier layer be located at corona processing layer and heat sealing functions layer it
Between.
2. novel environment-friendly high-barrier CPP thin film as claimed in claim 1 is it is characterised in that described corona processing layer and warm
Envelope functional layer is the thin layer with anti-static function and bacteria resistance function.
3. a kind of preparation method of novel environment-friendly high-barrier CPP thin film as claimed in claim 1 is it is characterised in that described
The preparation method of novel environment-friendly high-barrier 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；
Then adopt three-layer co-extruded curtain coating legal system primary film, prepared primary film is processed through corona one side in traction unit,
Traction harvest parent roll；
Parent roll, through Wetted constructures, finally cuts into novel environment-friendly high-barrier CPP thin film.
4. the preparation method of novel environment-friendly high-barrier CPP thin film as claimed in claim 3 is it is characterised in that cut into new
Type environment-friendly high is packed after CPP thin film and is put in storage.
5. novel environment-friendly high-barrier CPP thin film as claimed in claim 3 preparation method it is characterised in that
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.
6. the preparation method of novel environment-friendly high-barrier CPP thin film as claimed in claim 3 is it is characterised in that described distribution
Device carries out automatic measuring thickness using R gamma thickness gage and shows on the thermal expansion screw recording and feeding back on die head, and automatic die is adjusted
Control gap；Described die head adopts T-shaped mouth mould.
7. the preparation method of novel environment-friendly high-barrier CPP thin film as claimed in claim 3 is it is characterised in that pass through curtain coating
Also need to carry out air knife process after method masking, air knife carries out 1# chill roll cooling, the cooling of 2# chill roll after processing, then carry out leading
Draw unit to process through corona one side；
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.
8. the preparation method of novel environment-friendly high-barrier CPP thin film as claimed in claim 3 is it is characterised in for preparing is new
Type environment-friendly high is every the thickness 20um～30um of CPP thin film；Mist degree 5.5%～6%.
9. a kind of food box of the novel environment-friendly high-barrier CPP thin film being packaged with described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611131306.6A CN106476384A (en) | 2016-12-09 | 2016-12-09 | A kind of novel environment-friendly high-barrier CPP thin film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611131306.6A CN106476384A (en) | 2016-12-09 | 2016-12-09 | A kind of novel environment-friendly high-barrier CPP thin film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106476384A true CN106476384A (en) | 2017-03-08 |
Family
ID=58275070
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| CN201611131306.6A Pending CN106476384A (en) | 2016-12-09 | 2016-12-09 | A kind of novel environment-friendly high-barrier CPP thin film and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321341A (en) * | 2018-03-21 | 2018-07-24 | 闽南师范大学 | A kind of graphene diaphragm of modified lithium battery and its manufacturing method, lithium battery |
| CN109206651A (en) * | 2018-07-10 | 2019-01-15 | 上海大汇塑业有限公司 | Medicinal powder is packed for cast polypropylene film |
| CN112590341A (en) * | 2020-12-14 | 2021-04-02 | 江阴升辉包装材料有限公司 | Recyclable high-barrier composite sheet with high composite strength and preparation method thereof |
| CN112895645A (en) * | 2021-01-29 | 2021-06-04 | 浙江蓝也薄膜有限公司 | BOPP high-barrier composite film and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321341A (en) * | 2018-03-21 | 2018-07-24 | 闽南师范大学 | A kind of graphene diaphragm of modified lithium battery and its manufacturing method, lithium battery |
| CN109206651A (en) * | 2018-07-10 | 2019-01-15 | 上海大汇塑业有限公司 | Medicinal powder is packed for cast polypropylene film |
| CN109206651B (en) * | 2018-07-10 | 2021-06-18 | 上海大汇塑业有限公司 | Cast polypropylene film for packaging medicinal powder |
| CN112590341A (en) * | 2020-12-14 | 2021-04-02 | 江阴升辉包装材料有限公司 | Recyclable high-barrier composite sheet with high composite strength and preparation method thereof |
| CN112895645A (en) * | 2021-01-29 | 2021-06-04 | 浙江蓝也薄膜有限公司 | BOPP high-barrier composite film and preparation method thereof |
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Application publication date: 20170308 |
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