CN109397780A - A kind of band color stretch wrap films and purposes - Google Patents
A kind of band color stretch wrap films and purposes Download PDFInfo
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- CN109397780A CN109397780A CN201811425403.5A CN201811425403A CN109397780A CN 109397780 A CN109397780 A CN 109397780A CN 201811425403 A CN201811425403 A CN 201811425403A CN 109397780 A CN109397780 A CN 109397780A
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- 239000004698 Polyethylene Substances 0.000 claims abstract description 167
- 239000010410 layer Substances 0.000 claims abstract description 160
- 239000002994 raw material Substances 0.000 claims abstract description 107
- 230000004888 barrier function Effects 0.000 claims abstract description 97
- 239000012790 adhesive layer Substances 0.000 claims abstract description 83
- 239000004595 color masterbatch Substances 0.000 claims abstract description 78
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 62
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims abstract description 53
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims abstract description 52
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000001023 inorganic pigment Substances 0.000 claims abstract description 5
- 239000012860 organic pigment Substances 0.000 claims abstract description 5
- 239000000155 melt Substances 0.000 claims description 68
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 39
- 239000000853 adhesive Substances 0.000 claims description 36
- 230000001070 adhesive effect Effects 0.000 claims description 36
- 239000011347 resin Substances 0.000 claims description 36
- 229920005989 resin Polymers 0.000 claims description 36
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 26
- 238000002360 preparation method Methods 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 18
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 15
- 239000004408 titanium dioxide Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- 238000007493 shaping process Methods 0.000 claims description 12
- 239000011229 interlayer Substances 0.000 claims description 9
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 8
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- QFFVPLLCYGOFPU-UHFFFAOYSA-N barium chromate Chemical compound [Ba+2].[O-][Cr]([O-])(=O)=O QFFVPLLCYGOFPU-UHFFFAOYSA-N 0.000 claims description 2
- 229910052793 cadmium Inorganic materials 0.000 claims description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 2
- CJOBVZJTOIVNNF-UHFFFAOYSA-N cadmium sulfide Chemical compound [Cd]=S CJOBVZJTOIVNNF-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims 2
- 230000008018 melting Effects 0.000 claims 2
- 230000035515 penetration Effects 0.000 abstract description 2
- 229920001684 low density polyethylene Polymers 0.000 description 40
- 239000004702 low-density polyethylene Substances 0.000 description 40
- 241000761389 Copa Species 0.000 description 31
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 31
- 229920006280 packaging film Polymers 0.000 description 17
- 239000012785 packaging film Substances 0.000 description 17
- 239000000654 additive Substances 0.000 description 10
- 230000000996 additive effect Effects 0.000 description 10
- 238000004806 packaging method and process Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- 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
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing or receiving articles, liquids, or the like, in flight
- B64D1/02—Dropping, ejecting, or releasing articles
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Laminated Bodies (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Wrappers (AREA)
Abstract
The invention discloses a kind of band color stretch wrap films, are followed successively by the first barrier layer, the first adhesive layer, the second barrier layer, the second adhesive layer, third barrier layer, third adhesive layer, masterbatch layer, internal layer from top to bottom；Second barrier layer uses raw material at least one of PA, PE, PE and the mixture of color masterbatch；The third barrier layer uses raw material at least one of PA, EVOH；The masterbatch layer uses raw material for the mixture of PE or PE and color masterbatch；The color masterbatch is the color masterbatch based on organic pigment or the color masterbatch based on inorganic pigment；The third barrier layer is PA layers, PA layers/at least one of evoh layer/PA layers.It is prepared by the present invention to have the characteristics that strong tensile strength height, high impact-resistant, penetration, shading, barrier property are good with color stretch wrap films.
Description
Technical field
The invention belongs to field of packaging material, and in particular to a kind of band color stretch wrap films and purposes.
Background technique
It is in the prior art Transparent color for the multilayer stretched packing film of field of food, color is single, on shelf
It is difficult to attract the eyeball of consumer.In order to keep the various colors of packaging film colorful, existing technology generally uses color printing technology, no
The fussy degree for increasing only process also increases the production cost of enterprise.And food pack in use if
Using modes such as boiling, boiling, disinfections, then it will appear phenomena such as color is detached from, influence consumer to the trust of food quality.
In view of this, it is necessary to provide a kind of colored stretch wrap films.
Summary of the invention
The object of the present invention is to provide a kind of band color stretch wrap films, which can provide a variety of face for packaging quotient
The drawing and forming of color is packed, and the outer packing effect of product is increased.
A second object of the present invention is to provide a kind of use packed with color stretch wrap films as drawing and forming
On the way.
To achieve the goals above, The technical solution adopted by the invention is as follows:
The first aspect of the invention provides a kind of band color stretch wrap films, is followed successively by the first barrier from top to bottom
Layer, the first adhesive layer, the second barrier layer, the second adhesive layer, third barrier layer, third adhesive layer, masterbatch layer, internal layer；
Second barrier layer uses raw material at least one of PA, PE, PE and the mixture of color masterbatch；
The third barrier layer uses raw material at least one of PA, EVOH；
The masterbatch layer uses raw material for the mixture of PE or PE and color masterbatch；
The color masterbatch is the color masterbatch based on organic pigment or the color masterbatch based on inorganic pigment；
The third barrier layer is PA layers, PA layers/at least one of evoh layer/PA layers.
First barrier layer uses raw material for PA.
First adhesive layer, the second adhesive layer, third adhesive layer are maleic anhydride modified linear low using raw material
Density polyethylene (LLDPE) resin.
The internal layer uses raw material for PE.
Color masterbatch based on the organic pigment be the red PE Masterbatch of phthalocyanine, phthalocyanine blue PE Masterbatch, phthalocyanine green PE Masterbatch,
At least one of permanent yellow PE Masterbatch.
Color masterbatch based on the inorganic pigment is cadmium red PE Masterbatch, cadmium yellow PE Masterbatch, titanium dioxide PE Masterbatch, carbon black
At least one of PE Masterbatch.
The second aspect of the invention provides a kind of preparation method with color stretch wrap films, including following step
It is rapid:
The preparation method of first barrier layer: raw material PA being added in the hopper 1 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
The preparation method of first adhesive layer: by the maleic anhydride modified linear low density polyethylene tree of stock adhesive
Rouge is added in the hopper 2 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
The preparation method of second barrier layer: at least one of raw material PA, PE, PE and the mixture of color masterbatch are added
In the hopper 3 of extruder, temperature melts under conditions of being 220~250 DEG C, into mouth mold；
The preparation method of second adhesive layer: by the maleic anhydride modified linear low density polyethylene tree of stock adhesive
Rouge is added in the hopper 4 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
The preparation method of the third barrier layer: raw material PA being added in the hopper 5 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
Or, raw material PA, EVOH, PA are separately added into the hopper of three extruders, arranged with the interlayer of PA/EVOH/PA
Mode, the processing temperature of PA are 250 DEG C, and the processing temperature of EVOH is 220 DEG C, are melted with this condition, into mouth mold；
The preparation method of the third adhesive layer: by the maleic anhydride modified linear low density polyethylene tree of stock adhesive
Rouge is added in the hopper 6 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
The preparation method of the masterbatch layer: raw material PE or PE and the mixture of color masterbatch are added in the hopper 7 of extruder, temperature
Degree melts under conditions of being 220 DEG C, into mouth mold；
The preparation method of the internal layer: raw material PE being added in the hopper 8 of extruder, and temperature melts under conditions of being 220 DEG C
Melt, into mouth mold.
Then by squeezing out, water cooling and shaping obtains the band color and draws finally, being wound as needed with winder
Stretch packaging film.
The third aspect of the invention provides a kind of use packed with color stretch wrap films as drawing and forming
On the way.
Due to the adoption of the above technical scheme, the present invention has the following advantages and beneficial effects:
It is prepared by the present invention that the drawing and forming packaging of multiple color can be provided for packaging quotient with color stretch wrap films, increase
The outer packing effect for adding product has the characteristics that strong tensile strength height, high impact-resistant, penetration, shading, barrier property are good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram with color stretch wrap films PA/PE structure prepared by embodiment 1.
Fig. 2 is the structural schematic diagram with color stretch wrap films PA/EVOH/PE structure prepared by embodiment 3.
Wherein: 11 be the first barrier layer, 12 be the first adhesive layer, 13 be the second barrier layer, 14 be the second adhesive layer, 15 be
Third barrier layer, 16 be third adhesive layer, 17 be masterbatch layer, 18 be internal layer.
Specific embodiment
In order to illustrate more clearly of the present invention, below with reference to preferred embodiment, the present invention is described further.Ability
Field technique personnel should be appreciated that following specifically described content is illustrative and be not restrictive, this should not be limited with this
The protection scope of invention.
Abbreviation used in the present invention is as follows: PA: polyamide is commonly called as " nylon ", includes COPA (PA6-66)；PE:
Polyethylene, including low density polyethylene (LDPE) (LDPE)；EVOH: ethylene-vinyl alcohol copolymer；Tie: adhesive layer is (maleic anhydride modified
Linear low density polyethylene (LLDPE) resin).
Titanium dioxide PE Masterbatch is purchased from Shandong principal column Pty Ltd, trade mark 7M2001-70, or is purchased from peace color matching color
Master batch manufactures (Shanghai) Co., Ltd., trade mark 11898-KD；The red PE Masterbatch of phthalocyanine purchased from peace color matching Masterbatch manufacture (on
Sea) Co., Ltd the trade mark be 1501751-K, RED404.
Embodiment 1
PA/PE structure: PA/tie/PA/tie/PA/tie/PE+ color masterbatch 1/PE
It prepares PA/PE structure (PA/tie/PA/tie/PA/tie/PE+ color masterbatch 1/PE), drawn with a thickness of 150 μm of band colors
Stretch packaging film, comprising the following steps:
First barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 1 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
First adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 2 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Second barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 3 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
Second adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 4 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Third barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 5 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
Third adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 6 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Masterbatch layer raw material PE (LDPE+ color masterbatch 1 (the red PE Masterbatch of phthalocyanine)) is added in the hopper 7 of extruder, color masterbatch 1
(the red PE Masterbatch of phthalocyanine) additive amount accounts for the 3% of LDPE mass, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Internal layer raw material LDPE is added in the hopper 8 of extruder, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Then by squeezing out, water cooling and shaping, finally, being wound as needed with winder.
Band color stretch wrap films manufactured in the present embodiment, schematic diagram is as shown in Figure 1, Fig. 1 is band prepared by embodiment 1
The structural schematic diagram of color stretch wrap films PA/PE structure；Be followed successively by from top to bottom the first barrier layer 11, the first adhesive layer 12,
Second barrier layer 13, the second adhesive layer 14, third barrier layer 15, third adhesive layer 16, masterbatch layer 17, internal layer 18, specific structure
For PA/PE structure: PA/tie/PA/tie/PA/tie/PE+ color masterbatch 1/PE.
Above-mentioned film absorbs nearly 100% to 200~400nm length ultraviolet, and ultraviolet permeability is no more than 1%, in packaging
Residual oxygen is reduced to 0.1% or less by 2~3% contents.
Embodiment 2
PA/PE structure: PA/tie/PA/tie/PA/tie/PE+ color masterbatch 2/PE
It prepares PA/PE structure (PA/tie/PA/tie/PA/tie/PE+ color masterbatch 2/PE), drawn with a thickness of 150 μm of band colors
Stretch packaging film, comprising the following steps:
First barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 1 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
First adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 2 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Second barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 3 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
Second adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 4 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Third barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 5 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
Third adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 6 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Masterbatch layer raw material PE (LDPE+ color masterbatch 2 (titanium dioxide PE Masterbatch)) is added in the hopper 7 of extruder, color masterbatch 2
(titanium dioxide PE Masterbatch) additive amount accounts for the 3% of LDPE mass, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Internal layer raw material LDPE is added in the hopper 8 of extruder, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Then by squeezing out, cooling and shaping, finally, being wound as needed with winder.
Band color stretch wrap films manufactured in the present embodiment are followed successively by the first barrier layer 11, the first adhesive layer from top to bottom
12, the second barrier layer 13, the second adhesive layer 14, third barrier layer 15, third adhesive layer 16, masterbatch layer 17, internal layer 18, it is specific to tie
Structure is PA/PE structure: PA/tie/PA/tie/PA/tie/PE+ color masterbatch 2/PE.
Above-mentioned film absorbs nearly 100% to 200~400nm length ultraviolet, and ultraviolet permeability is no more than 1%, in packaging
Residual oxygen is reduced to 0.1% or less by 2~3% contents.
Embodiment 3
PA/EVOH/PE structure: PA/tie/PE+ color masterbatch 1/tie/PA/EVOH/PA/tie/PE+ color masterbatch 1/PE
Prepare PA/EVOH/PE structure (PA/tie/PE+ color masterbatch 1/tie/PA/EVOH/PA/tie/PE+ color masterbatch 1/PE), thickness
The band color stretch wrap films that degree is 150 μm, comprising the following steps:
First barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 1 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
First adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 2 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Second barrier layer, raw material PE (LDPE+ color masterbatch 1 (the red PE Masterbatch of phthalocyanine)) are added in the hopper 7 of extruder, color masterbatch
1 (the red PE Masterbatch of phthalocyanine) additive amount accounts for the 3% of LDPE mass, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Second adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 4 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Third barrier layer, by raw material PA (COPA (PA6-66)), EVOH, PA (COPA (PA6-66)) (mass ratio 2:1:
2) it is separately added into the hopper of three extruders, with the interlayer arrangement mode of PA/EVOH/PA, the processing temperature of PA is 250 DEG C,
The processing temperature of EVOH is 220 DEG C, is melted with this condition, into mouth mold；
Third adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 6 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Masterbatch layer raw material PE (LDPE+ color masterbatch 1 (the red PE Masterbatch of phthalocyanine)) is added in the hopper 7 of extruder, color masterbatch 1
(the red PE Masterbatch of phthalocyanine) additive amount accounts for the 3% of LDPE mass, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Internal layer raw material LDPE is added in the hopper 8 of extruder, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Then by squeezing out, cooling and shaping, finally, being wound as needed with winder.
Band color stretch wrap films manufactured in the present embodiment, schematic diagram is as shown in Fig. 2, Fig. 2 is band prepared by embodiment 3
The structural schematic diagram of color stretch wrap films PA/EVOH/PE structure；It is followed successively by the bonding of the first barrier layer 11, first from top to bottom
Layer the 12, second barrier layer 13, the second adhesive layer 14, third barrier layer 15, third adhesive layer 16, masterbatch layer 17, internal layer 18, specifically
Structure is PA/EVOH/PE structure: PA/tie/PE+ color masterbatch 1/tie/PA/EVOH/PA/tie/PE+ color masterbatch 1/PE.
Above-mentioned film absorbs nearly 100% to 200~400nm length ultraviolet, and ultraviolet permeability is no more than 1%, in packaging
Residual oxygen is reduced to 0.1% or less by 2~3% contents.
Embodiment 4
PA/EVOH/PE structure: PA/tie/PE+ color masterbatch 2/tie/PA/EVOH/PA/tie/PE+ color masterbatch 2/PE
Prepare PA/EVOH/PE structure (PA/tie/PE+ color masterbatch 2/tie/PA/EVOH/PA/tie/PE+ color masterbatch 2/PE), thickness
The band color stretch wrap films that degree is 150 μm, comprising the following steps:
First barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 1 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
First adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 2 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Second barrier layer, raw material PE (LDPE+ color masterbatch 2 (titanium dioxide PE Masterbatch)) are added in the hopper 7 of extruder, color masterbatch
2 (titanium dioxide PE Masterbatch) additive amounts account for the 3% of LDPE mass, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Second adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 4 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Third barrier layer, by raw material PA (COPA (PA6-66)), EVOH, PA (COPA (PA6-66)) (mass ratio 2:1:
2) it is separately added into the hopper of three extruders, with the interlayer arrangement mode of PA/EVOH/PA, the processing temperature of PA is 250 DEG C,
The processing temperature of EVOH is 220 DEG C, is melted with this condition, into mouth mold；
Third adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 6 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Masterbatch layer raw material PE (LDPE+ color masterbatch 2 (titanium dioxide PE Masterbatch)) is added in the hopper 7 of extruder, color masterbatch 2
(titanium dioxide PE Masterbatch) additive amount accounts for the 3% of LDPE mass, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Internal layer raw material LDPE is added in the hopper 8 of extruder, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Then by squeezing out, cooling and shaping, finally, being wound as needed with winder.
Band color stretch wrap films manufactured in the present embodiment are followed successively by the first barrier layer 11, the first adhesive layer from top to bottom
12, the second barrier layer 13, the second adhesive layer 14, third barrier layer 15, third adhesive layer 16, masterbatch layer 17, internal layer 18, it is specific to tie
Structure is PA/EVOH/PE structure: PA/tie/PE+ color masterbatch 2/tie/PA/EVOH/PA/tie/PE+ color masterbatch 2/PE.
Above-mentioned film absorbs nearly 100% to 200~400nm length ultraviolet, and ultraviolet permeability is no more than 1%, in packaging
Residual oxygen is reduced to 0.1% or less by 2~3% contents.
Embodiment 5
PA/EVOH/PE structure: PA/tie/PE/tie/PA/EVOH/PA/tie/PE+ color masterbatch 1/PE
Prepare PA/EVOH/PE structure (PA/tie/PE/tie/PA/EVOH/PA/tie/PE+ color masterbatch 1/PE), with a thickness of
150 μm of packaging film, comprising the following steps:
First barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 1 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
First adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 2 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Second barrier layer raw material LDPE is added in the hopper 3 of extruder, and temperature melts under conditions of being 220 DEG C, enters
Mouth mold；
Second adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 4 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Third barrier layer, by raw material PA (COPA (PA6-66)), EVOH, PA (COPA (PA6-66)) (mass ratio 2:1:
2) it is separately added into the hopper of three extruders, with the interlayer arrangement mode of PA/EVOH/PA, the processing temperature of PA is 250 DEG C,
The processing temperature of EVOH is 220 DEG C, is melted with this condition, into mouth mold；
Third adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 6 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Masterbatch layer raw material PE (LDPE+ color masterbatch 1 (the red PE Masterbatch of phthalocyanine)) is added in the hopper 7 of extruder, color masterbatch 1
(the red PE Masterbatch of phthalocyanine) additive amount accounts for the 3% of LDPE mass, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Internal layer raw material LDPE is added in the hopper 8 of extruder, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Then by squeezing out, cooling and shaping, finally, being wound as needed with winder.
Packaging film manufactured in the present embodiment, be followed successively by from top to bottom the first barrier layer, the first adhesive layer, the second barrier layer,
Second adhesive layer, third barrier layer, third adhesive layer, masterbatch layer, internal layer, specific structure are PA/EVOH/PE structure: PA/tie/
PE/tie/PA/EVOH/PA/tie/PE+ color masterbatch 1/PE.
Embodiment 6
PA/EVOH/PE structure: PA/tie/PE/tie/PA/EVOH/PA/tie/PE+ color masterbatch 2/PE
Prepare PA/EVOH/PE structure (PA/tie/PE/tie/PA/EVOH/PA/tie/PE+ color masterbatch 2/PE), with a thickness of
150 μm of packaging film, comprising the following steps:
First barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 1 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
First adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 2 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Second barrier layer raw material LDPE is added in the hopper 3 of extruder, and temperature melts under conditions of being 220 DEG C, enters
Mouth mold；
Second adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 4 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Third barrier layer, by raw material PA (COPA (PA6-66)), EVOH, PA (COPA (PA6-66)) (mass ratio 2:1:
2) it is separately added into the hopper of three extruders, with the interlayer arrangement mode of PA/EVOH/PA, the processing temperature of PA is 250 DEG C,
The processing temperature of EVOH is 220 DEG C, is melted with this condition, into mouth mold；
Third adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 6 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Masterbatch layer raw material PE (LDPE+ color masterbatch 2 (titanium dioxide PE Masterbatch)) is added in the hopper 7 of extruder, color masterbatch 2
(titanium dioxide PE Masterbatch) additive amount accounts for the 3% of LDPE mass, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Internal layer raw material LDPE is added in the hopper 8 of extruder, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Then by squeezing out, cooling and shaping, finally, being wound as needed with winder.
Packaging film manufactured in the present embodiment, be followed successively by from top to bottom the first barrier layer, the first adhesive layer, the second barrier layer,
Second adhesive layer, third barrier layer, third adhesive layer, masterbatch layer, internal layer, specific structure are PA/EVOH/PE structure: PA/tie/
PE/tie/PA/EVOH/PA/tie/PE+ color masterbatch 2/PE.
Embodiment 7
PA/EVOH/PE structure: PA/tie/PE+ color masterbatch 1/tie/PA/EVOH/PA/tie/PE/PE
Prepare PA/EVOH/PE structure (PA/tie/PE+ color masterbatch 1/tie/PA/EVOH/PA/tie/PE/PE), with a thickness of
150 μm of packaging film, comprising the following steps:
First barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 1 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
First adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 2 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Second barrier layer raw material PE (LDPE+ color masterbatch 1 (the red PE Masterbatch of phthalocyanine)) is added in the hopper 7 of extruder, color
Female 1 (the red PE Masterbatch of phthalocyanine) additive amount accounts for the 3% of LDPE mass, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Second adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 4 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Third barrier layer, by raw material PA (COPA (PA6-66)), EVOH, PA (COPA (PA6-66)) (mass ratio 2:1:
2) it is separately added into the hopper of three extruders, with the interlayer arrangement mode of PA/EVOH/PA, the processing temperature of PA is 250 DEG C,
The processing temperature of EVOH is 220 DEG C, is melted with this condition, into mouth mold；
Third adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 6 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Masterbatch layer raw material LDPE is added in the hopper 7 of extruder, and temperature melts under conditions of being 220 DEG C, inlet port
Mould；Internal layer raw material LDPE is added in the hopper 8 of extruder, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Then by squeezing out, cooling and shaping, finally, being wound as needed with winder.
Packaging film manufactured in the present embodiment, be followed successively by from top to bottom the first barrier layer, the first adhesive layer, the second barrier layer,
Second adhesive layer, third barrier layer, third adhesive layer, the 4th barrier layer, internal layer, specific structure are PA/EVOH/PE structure: PA/
Tie/PE+ color masterbatch 1/tie/PA/EVOH/PA/tie/PE+ color masterbatch 1/PE.
Embodiment 8
PA/EVOH/PE structure: PA/tie/PE+ color masterbatch 2/tie/PA/EVOH/PA/tie/PE/PE
Prepare PA/EVOH/PE structure (PA/tie/PE+ color masterbatch 2/tie/PA/EVOH/PA/tie/PE/PE), with a thickness of
150 μm of packaging film, comprising the following steps:
First barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 1 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
First adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 2 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Second barrier layer raw material PE (LDPE+ color masterbatch 2 (titanium dioxide PE Masterbatch)) is added in the hopper 3 of extruder, color
Female 2 (titanium dioxide PE Masterbatch) additive amounts account for the 3% of LDPE mass, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Second adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 4 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Third barrier layer, by raw material PA (COPA (PA6-66)), EVOH, PA (COPA (PA6-66)) (mass ratio 2:1:
2) it is separately added into the hopper of three extruders, with the interlayer arrangement mode of PA/EVOH/PA, the processing temperature of PA is 250 DEG C,
The processing temperature of EVOH is 220 DEG C, is melted with this condition, into mouth mold；
Third adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 6 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Masterbatch layer raw material LDPE is added in the hopper 7 of extruder, and temperature melts under conditions of being 220 DEG C, inlet port
Mould；Internal layer raw material LDPE is added in the hopper 8 of extruder, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Then by squeezing out, cooling and shaping, finally, being wound as needed with winder.
Packaging film manufactured in the present embodiment, be followed successively by from top to bottom the first barrier layer, the first adhesive layer, the second barrier layer,
Second adhesive layer, third barrier layer, third adhesive layer, the 4th barrier layer, internal layer, specific structure are PA/EVOH/PE structure: PA/
Tie/PE+ color masterbatch 2/tie/PA/EVOH/PA/tie/PE+ color masterbatch 2/PE.
Comparative example 1
PA/PE structure: PA/tie/PA/tie/PA/tie/PE/PE
Prepare PA/PE structure (PA/tie/PA/tie/PA/tie/PE/PE), with a thickness of 150 μm of packaging films, including with
Lower step:
First barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 1 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
First adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 2 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Second barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 3 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
Second adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 4 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Third barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 5 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
Third adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 6 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
4th barrier layer raw material LDPE is added in the hopper 7 of extruder, and temperature melts under conditions of being 220 DEG C, enters
Mouth mold；
Internal layer raw material LDPE is added in the hopper 8 of extruder, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Then by squeezing out, cooling and shaping, finally, being wound as needed with winder.
Packaging film manufactured in the present embodiment, be followed successively by from top to bottom the first barrier layer, the first adhesive layer, the second barrier layer,
Second adhesive layer, third barrier layer, third adhesive layer, the 4th barrier layer, internal layer, specific structure are PA/PE structure: PA/tie/
PA/tie/PA/tie/PE/PE。
Comparative example 2
PA/EVOH/PE structure: PA/tie/PE/tie/PA/EVOH/PA/tie/PE/PE
Prepare PA/EVOH/PE structure (PA/tie/PE/tie/PA/EVOH/PA/tie/PE/PE), with a thickness of 150 μm
Packaging film, comprising the following steps:
First barrier layer raw material PA (COPA (PA6-66)) is added in the hopper 1 of extruder, the item that temperature is 250 DEG C
It is melted under part, into mouth mold；
First adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 2 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Second barrier layer raw material LDPE is added in the hopper 3 of extruder, and temperature melts under conditions of being 220 DEG C, enters
Mouth mold；
Second adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 4 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
Third barrier layer, by raw material PA (COPA (PA6-66)), EVOH, PA (COPA (PA6-66)) (mass ratio 2:1:
2) it is separately added into the hopper of three extruders, with the interlayer arrangement mode of PA/EVOH/PA, the processing temperature of PA is 250 DEG C,
The processing temperature of EVOH is 220 DEG C, is melted with this condition, into mouth mold；
Third adhesive layer, by the maleic anhydride modified linear low density polyethylene (LLDPE) of primary raw material adhesive (Tie)
Resin is added in the hopper 6 of extruder, and temperature melts under the conditions of being 225 DEG C, into mouth mold；
4th barrier layer raw material LDPE is added in the hopper 7 of extruder, and temperature melts under conditions of being 220 DEG C, enters
Mouth mold；
Internal layer raw material LDPE is added in the hopper 8 of extruder, and temperature melts under conditions of being 220 DEG C, into mouth mold；
Then by squeezing out, cooling and shaping, finally, being wound as needed with winder.
Packaging film manufactured in the present embodiment, be followed successively by from top to bottom the first barrier layer, the first adhesive layer, the second barrier layer,
Second adhesive layer, third barrier layer, third adhesive layer, the 4th barrier layer, internal layer, specific structure are PA/EVOH/PE structure: PA/
tie/PE/tie/PA/EVOH/PA/tie/PE/PE。
The color masterbatch content of Examples 1 to 8 and comparative example 1~2 composition is as shown in table 1:
Table 1
The performance test of the packaging film of Examples 1 to 8 and comparative example 1~2 is as shown in table 2, light transmittance test method are as follows:
ASTM D1003；Moisture transmission measurement method is ASTM F1249；OTR oxygen transmission rate test method is ASTM D3985.
Table 2
From table 1 it follows that the light transmittance of Examples 1 and 2 will obviously be lower than comparative example 1, embodiment 2 uses inorganic nature
Color masterbatch is protected from light performance and is better than embodiment 1.The light transmittance of embodiment 3-8 will obviously be lower than comparative example 2, and embodiment 6 uses inorganic
Property color masterbatch is protected from light performance and is better than embodiment 5.Embodiment 3 and 4 is protected from light performance more after double color masterbatch is added, and uses in the later period
In the case that film carries out tension-thining in the process, certain shading rate also can guarantee.
The band color stretch wrap films of preparation of the embodiment of the present invention are used as stretching counterdie, and 90 DEG C of stretched machine pre-
Hot rear film can soften, and blown afloat by air pressure and film is blown out the shape formulated.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompt make it is a little change or be modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above embodiments, in the range of still falling within the present invention program.
Claims (8)
1. a kind of band color stretch wrap films, it is characterised in that: be followed successively by the first barrier layer, the first adhesive layer, from top to bottom
Two barrier layers, the second adhesive layer, third barrier layer, third adhesive layer, masterbatch layer, internal layer；
Second barrier layer uses at least one of raw material PA, PE, PE and the mixture of color masterbatch；
The third barrier layer uses raw material at least one of PA, EVOH；
The masterbatch layer uses raw material for the mixture of PE or PE and color masterbatch；
The color masterbatch is the color masterbatch based on organic pigment or the color masterbatch based on inorganic pigment；
The third barrier layer is PA layers, PA layers/at least one of evoh layer/PA layers.
2. band color stretch wrap films according to claim 1, it is characterised in that: first barrier layer use raw material for
PA。
3. band color stretch wrap films according to claim 1, it is characterised in that: first adhesive layer, the second bonding
Layer, third adhesive layer are maleic anhydride modified linear low density polyethylene resin using raw material.
4. band color stretch wrap films according to claim 1, it is characterised in that: the internal layer uses raw material for PE.
5. band color stretch wrap films according to claim 1, it is characterised in that: the color masterbatch based on the organic pigment is
At least one of the red PE Masterbatch of phthalocyanine, phthalocyanine blue PE Masterbatch, phthalocyanine green PE Masterbatch, permanent yellow PE Masterbatch.
6. band color stretch wrap films according to claim 1, it is characterised in that: the color masterbatch based on the inorganic pigment is
At least one of cadmium red PE Masterbatch, cadmium yellow PE Masterbatch, titanium dioxide PE Masterbatch, carbon black PE Masterbatch.
7. a kind of preparation method as claimed in any one of claims 1 to 6 with color stretch wrap films, it is characterised in that: including
Following steps:
The preparation method of first barrier layer: raw material PA being added in the hopper 1 of extruder, under conditions of temperature is 250 DEG C
Melting, into mouth mold；
The preparation method of first adhesive layer: the maleic anhydride modified linear low density polyethylene resin of stock adhesive is added
Enter in the hopper 2 of extruder, temperature melts under the conditions of being 225 DEG C, into mouth mold；
The preparation method of second barrier layer: at least one of raw material PA, PE, PE and the mixture of color masterbatch are added and squeezed out
In the hopper 3 of machine, temperature melts under conditions of being 220~250 DEG C, into mouth mold；
The preparation method of second adhesive layer: the maleic anhydride modified linear low density polyethylene resin of stock adhesive is added
Enter in the hopper 4 of extruder, temperature melts under the conditions of being 225 DEG C, into mouth mold；
The preparation method of the third barrier layer: raw material PA being added in the hopper 5 of extruder, under conditions of temperature is 250 DEG C
Melting, into mouth mold；
Or, raw material PA, EVOH, PA are separately added into the hopper of three extruders, with the interlayer arrangement mode of PA/EVOH/PA,
The processing temperature of PA is 250 DEG C, and the processing temperature of EVOH is 220 DEG C, is melted with this condition, into mouth mold；
The preparation method of the third adhesive layer: the maleic anhydride modified linear low density polyethylene resin of stock adhesive is added
Enter in the hopper 6 of extruder, temperature melts under the conditions of being 225 DEG C, into mouth mold；
The preparation method of the masterbatch layer: raw material PE or PE and the mixture of color masterbatch are added in the hopper 7 of extruder, temperature is
It is melted under conditions of 220 DEG C, into mouth mold；
The preparation method of the internal layer: raw material PE being added in the hopper 8 of extruder, and temperature melts under conditions of being 220 DEG C, into
Enter mouth mold；
Then by squeezing out, water cooling and shaping obtains the band color and stretches packet finally, being wound as needed with winder
Fill film.
8. a kind of described in any item purposes packed with color stretch wrap films as drawing and forming of claim 1 to 7.
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| CN201811425403.5A CN109397780A (en) | 2018-11-27 | 2018-11-27 | A kind of band color stretch wrap films and purposes |
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| CN201811425403.5A CN109397780A (en) | 2018-11-27 | 2018-11-27 | A kind of band color stretch wrap films and purposes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112455040A (en) * | 2020-11-20 | 2021-03-09 | 大连荣华彩印包装有限公司 | Color liquid packaging film and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1349458A (en) * | 1999-04-02 | 2002-05-15 | 吴羽化学工业株式会社 | Multiplayered casing film |
| CN103009743A (en) * | 2012-12-10 | 2013-04-03 | 江阴升辉包装材料有限公司 | Ten-layer co-extrusion packaging film and production method thereof |
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2018
- 2018-11-27 CN CN201811425403.5A patent/CN109397780A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1349458A (en) * | 1999-04-02 | 2002-05-15 | 吴羽化学工业株式会社 | Multiplayered casing film |
| CN103009743A (en) * | 2012-12-10 | 2013-04-03 | 江阴升辉包装材料有限公司 | Ten-layer co-extrusion packaging film and production method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112455040A (en) * | 2020-11-20 | 2021-03-09 | 大连荣华彩印包装有限公司 | Color liquid packaging film and preparation method thereof |
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