CN110126407A - Digestion resistant easy takes off film base material film, easily takes off film, preparation method comprising it - Google Patents
Digestion resistant easy takes off film base material film, easily takes off film, preparation method comprising it Download PDFInfo
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- CN110126407A CN110126407A CN201910303439.4A CN201910303439A CN110126407A CN 110126407 A CN110126407 A CN 110126407A CN 201910303439 A CN201910303439 A CN 201910303439A CN 110126407 A CN110126407 A CN 110126407A
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- 239000000463 material Substances 0.000 title claims abstract description 88
- 238000002360 preparation method Methods 0.000 title claims description 8
- 230000029087 digestion Effects 0.000 title description 4
- 238000007789 sealing Methods 0.000 claims abstract description 61
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 20
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 20
- -1 ethylene, propylene butene Chemical group 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 229920001897 terpolymer Polymers 0.000 claims abstract description 6
- 239000000155 melt Substances 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000003851 corona treatment Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 238000004513 sizing Methods 0.000 claims description 5
- 241001232787 Epiphragma Species 0.000 abstract description 5
- 238000009835 boiling Methods 0.000 abstract description 2
- 239000005022 packaging material Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 88
- 230000004888 barrier function Effects 0.000 description 12
- 239000004677 Nylon Substances 0.000 description 7
- 229920001778 nylon Polymers 0.000 description 7
- 239000012793 heat-sealing layer Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 208000002173 dizziness Diseases 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000008157 edible vegetable oil 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 239000004775 Tyvek Substances 0.000 description 1
- 229920000690 Tyvek Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (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
- 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
- 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
- B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/03—3 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
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
-
- 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
- B32B2270/00—Resin or rubber layer containing a blend of at least two different 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
-
- 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
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/308—Heat stability
-
- 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
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/31—Heat sealable
-
- 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
- B32B2439/70—Food packaging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to field of packaging material, and in particular to a kind of easily to take off film.A kind of heat seal strength is constant and film base material film is firmly easily taken off in sealing sealing, it from outside to inside successively include corona layer, the middle layer, hot sealing layer being co-extruded, the material of the corona layer is the blend of PP and metallocene HDPE, the weight ratio of PP and metallocene HDPE are 20-50:100, the material of the middle layer is metallocene HDPE, melt index is 0.5-1g/10min, and the material of the hot sealing layer is ethylene, propylene butene terpolymers.When the present invention is sealed with pp glasss of materials, under the premise of being able to satisfy food safety, heat seal strength facilitates consumer to open epiphragma in 15-29N/15MM, facilitates the use of consumer, can be with resistance to 121 DEG C of boiling.
Description
Technical field
The invention belongs to field of packaging material, and in particular to a kind of easily to take off film.
Background technique
Easily taking off membrane material is widely used to various packagings, for bowl-shape, cup-shaped, tubbiness and box made of PP class material
The epiphragma of shape container.Or sealed with the TYVEK of HDPE, on the market common sealed membrane heat seal strength with heat-sealing temperature raising
And increase, when container is sealed secured, and this epiphragma cannot be opened.The high temperature that also useful curtain coating mode is done on the market steams
It boils and easily takes off film, it is desirable that order volume is larger, bad translation formulas.
Summary of the invention
Technical problem to be solved by the invention is to provide it is a kind of prepare conveniently, can be with the heat seal strength of sealed package
Constant and sealing sealing firmly easily takes off film base material film, and provides preparation method, also provides a kind of using base material film work
Film is easily taken off for hot sealing layer.
Technical scheme is as follows:
A kind of heat seal strength is constant and sealing sealing firmly easily takes off film base material film, from outside to inside successively includes the electricity being co-extruded
Dizzy layer, middle layer, hot sealing layer, which is characterized in that the corona layer material is the blend of PP and metallocene HDPE, PP and cyclopentadienyl
The weight ratio of metal HDPE is 20-50:100, and the intermediate layer material is metallocene HDPE, melt index 0.5-1g/
10min, the heat-sealing layer material are ethylene, propylene butene terpolymers.
Further, the melt temperature of the corona layer material is 190-240 DEG C.
Further, the melt temperature of the intermediate layer material is 200-240 DEG C.
Further, the melt temperature of the heat-sealing layer material is 200-240 DEG C.
Further, the hot sealing layer is with a thickness of 6-15 μm.
A kind of above-mentioned heat seal strength is constant and sealing seals the preparation method for firmly easily taking off film base material film: altogether using three layers
Corona layer, middle layer, the corresponding material resin of hot sealing layer are separately added into respective extruder barrel by extrusion process, control
The melt temperature of corona layer resin is 190-240 DEG C, and the melt temperature of intermediate layer resin is 200-240 DEG C, hot sealing layer resin
Melt temperature is 200-240 DEG C, is cooled down after the plastic extrusion of melting through propelling the price of, and traction sizing using sided corona treatment, obtains institute
It states and easily takes off film base material film.
It is a kind of to take off film comprising easily taking off the easy of film base material film described in claim 1.Base material film of the invention is to take off film as easy
Lowest level (i.e. hot sealing layer), i.e., be directly heat sealed to layer together with box body or cup body, general compound barrier layer is thin on base material film
Composite print layer film on film, barrier layer.The material of barrier layer and printing layer, base material film, barrier layer, printing layer combination process
Belong to this field routine techniques, this does not elaborate.
The invention has the following beneficial effects:
1, the product has more excellent heat resistance compared to conventional products, resistance under the premise of not changing properties of product
Warm nature can reach 121 degree, therefore for food safety, can better meet requirement of the client to sterilization, guarantee food
Safety.
2, when the present invention is sealed with pp glasss of materials, under the premise of being able to satisfy food safety, heat-sealing stability is good, heat seal strength
In 15-29N/15MM, consumer is facilitated to open epiphragma, facilitates the use of consumer.
Specific embodiment
The present invention will now be described in detail with reference to examples, and the examples are only preferred embodiments of the present invention,
It is not limitation of the invention.
In the present invention, melt index is measured according to elastomer melt index testing standard ASTM D1238, PP experiment condition
For 2.16Kg, 230 DEG C.Metallocene HDPE experiment condition be 2.16Kg, 190 DEG C.The present invention can to the restriction of material molten index
To ensure the use technique of materials'use effect and process after blowfilm shaping of the present invention.
Embodiment 1
A kind of heat seal strength is constant and sealing sealing firmly easily takes off film base material film, from outside to inside successively includes the electricity being co-extruded
Dizzy layer, middle layer, hot sealing layer, wherein corona layer material is the blend of PP and metallocene HDPE, the weight of PP and metallocene HDPE
For amount than being 20:100, melt temperature is 200 DEG C.Intermediate layer material is metallocene HDPE, melt index 0.5g/10min, melt
Temperature is 200 DEG C, and the heat-sealing layer material is ethylene, propylene butene terpolymers, and melt temperature is 200 DEG C.
The base material film overall thickness of the present embodiment is 70 μm, and corona layer, middle layer, the thickness accounting of hot sealing layer are: 35%,
55%、10%。
Above-mentioned base material film the preparation method comprises the following steps:
Using three-layer co-extruded technique out, corona layer, middle layer, the corresponding material resin of hot sealing layer are separately added into respective extrusion
In machine barrel, the melt temperature of control corona layer resin is 200 DEG C, and the melt temperature of intermediate layer resin is 200 DEG C, hot sealing layer tree
The melt temperature of rouge is 200 DEG C, is cooled down after the plastic extrusion of melting through propelling the price of, and traction sizing using sided corona treatment, obtains institute
It states and easily takes off film base material film.
A kind of heat seal strength is constant and sealing sealing firmly easily takes off film, by printing layer, barrier layer and above-mentioned base material film
It is successively bonded with adhesive from outside to inside.Wherein printing layer material is PET, and barrier layer material is nylon (NY).
Embodiment 2
A kind of heat seal strength is constant and sealing sealing firmly easily takes off film base material film, from outside to inside successively includes the electricity being co-extruded
Dizzy layer, middle layer, hot sealing layer, wherein corona layer material is the blend of PP and metallocene HDPE, the weight of PP and metallocene HDPE
For amount than being 50:100, melt temperature is 240 DEG C.Intermediate layer material is metallocene HDPE, melt index 1g/10min, melt temperature
Degree is 240 DEG C, and the heat-sealing layer material is ethylene, propylene butene terpolymers, and melt temperature is 240 DEG C.
The base material film overall thickness of the present embodiment is 70 μm, and corona layer, middle layer, the thickness accounting of hot sealing layer are respectively:
35%、50%、15%。
Above-mentioned base material film the preparation method comprises the following steps:
Using three-layer co-extruded technique out, corona layer, middle layer, the corresponding material resin of hot sealing layer are separately added into respective extrusion
In machine barrel, the melt temperature of control corona layer resin is 240 DEG C, and the melt temperature of intermediate layer resin is 240 DEG C, hot sealing layer tree
The melt temperature of rouge is 240 DEG C, is cooled down after the plastic extrusion of melting through propelling the price of, and traction sizing using sided corona treatment, obtains institute
It states and easily takes off film base material film.A kind of heat seal strength is constant and sealing sealing firmly easily takes off film, by printing layer, barrier layer and above-mentioned
Base material film is successively bonded with adhesive from outside to inside.Wherein printing layer material is PET, and barrier layer material is AL.
Embodiment 3
A kind of heat seal strength is constant and sealing sealing firmly easily takes off film base material film, from outside to inside successively includes the electricity being co-extruded
Dizzy layer, middle layer, hot sealing layer, wherein corona layer material is the blend of PP and metallocene HDPE, the weight of PP and metallocene HDPE
For amount than being 30:100, melt temperature is 210 DEG C.Intermediate layer material is metallocene HDPE, melt index 0.8g/10min, melt
Temperature is 210 DEG C, and the heat-sealing layer material is ethylene, propylene butene terpolymers, and melt temperature is 210 DEG C.
The base material film overall thickness of the present embodiment be 70 μm, corona layer, middle layer, hot sealing layer thickness be respectively: 35%,
53%、12%。
Above-mentioned base material film the preparation method comprises the following steps:
Using three-layer co-extruded technique out, corona layer, middle layer, the corresponding material resin of hot sealing layer are separately added into respective extrusion
In machine barrel, the melt temperature of control corona layer resin is 210 DEG C, and the melt temperature of intermediate layer resin is 210 DEG C, hot sealing layer tree
The melt temperature of rouge is 210 DEG C, is cooled down after the plastic extrusion of melting through propelling the price of, and traction sizing using sided corona treatment, obtains institute
It states and easily takes off film base material film.A kind of heat seal strength is constant and sealing sealing firmly easily takes off film, by printing layer, barrier layer and above-mentioned
Base material film is successively bonded with adhesive from outside to inside.Wherein printing layer material is NY, and barrier layer material is NY.
Base material film prepared by embodiment 1 and PP sheet material are sealed, the test of heat seal strength is carried out, as a result as follows:
As seen from the above table, base material film of the invention and PP sheet material seal, at 170-230 DEG C, 2Kg pressure, and 0.5 second heat seal condition
Under, heat seal strength can reach 5-12N/15mm, and after room temperature 7 months 2 years, heat seal strength is also maintained at 5-11.8 N/15mm.
As it can be seen that base material film of the present invention and PP sheet material heat-sealing stability are good.
Base material film prepared by embodiment 1 is fit together with barrier layer nylon NY and printing layer PET with adhesive,
It obtains one kind and easily takes off film, base material film, barrier layer NY, printing layer PET thickness are respectively as follows: 70 μm, 15 μm, 12 μm, seal strong
The test of degree, as a result as follows:
As seen from the above table, base material film of the invention is as hot sealing layer, the base for PET12 μm/NY15 μm/embodiment 1 being prepared into
The three-layer composite structure that 70 μm of material film easily takes off film, seals with PP glasss of materials, 4Kg pressure, 3 seconds, 150-230 DEG C of hot knife temperature
Under heat seal condition, heat seal strength 20-25.6N/15mm, consumer can readily open epiphragma.In addition, in room temperature 2
It is impregnated 7 months 2 years after 7 months years, after being impregnated 2 months in edible oil, after being impregnated 8 months in edible oil, in edible oil
Afterwards, after impregnating 2 months in water, after impregnating 8 months in water, after impregnating 7 months 2 years in water, heat seal strength is respectively
20.3-26.4 N/15mm、15.8-35.6 N/15mm、15.7-29.9 N/15mm、15.2-25.9 N/15mm、17.8-26.6
N/15mm,17-29.7 N/15mm,14.9-24.8 N/15mm.As it can be seen that the temperature model of base material film of the invention at 150-230 DEG C
It can be sealed in enclosing, and relative constant with the heat seal strength of PP substrate.
Film will easily be taken off prepared by embodiment 1 ~ 3 to seal with PP glasss of materials, heat-sealing temperature is set as 170 DEG C, obtains a kind of easy
PP glasss of lid is taken off, in 121 degree of thermophilic digestion pots, boiling 30 minutes, tests its various performance, as the result is shown: composite membrane can be kept
Original choke, resistance oxygen separating performance, composite membrane and cup body easily take off performance, other with it is almost the same under normal condition, it is not bright
Aobvious deformation and contracting sample etc..As it can be seen that base material film of the invention has the advantages that digestion resistant.
Claims (7)
- It from outside to inside successively include being co-extruded 1. a kind of heat seal strength is constant and sealing sealing firmly easily takes off film base material film Corona layer, middle layer, hot sealing layer, which is characterized in that the material of the corona layer is the blend of PP and metallocene HDPE, PP and The weight ratio of metallocene HDPE is 20-50:100, and the material of the middle layer is metallocene HDPE, melt index 0.5-1g/ 10min, the material of the hot sealing layer are ethylene, propylene butene terpolymers.
- 2. heat seal strength according to claim 1 is constant and film base material film is firmly easily taken off in sealing sealing, which is characterized in that The corona layer melt temperature is 190-240 DEG C.
- 3. heat seal strength according to claim 1 is constant and film base material film is firmly easily taken off in sealing sealing, which is characterized in that The middle layer melt temperature is 200-240 DEG C.
- 4. heat seal strength according to claim 1 is constant and film base material film is firmly easily taken off in sealing sealing, which is characterized in that The hot sealing layer melt temperature is 200-240 DEG C.
- 5. heat seal strength according to claim 1 is constant and film base material film is firmly easily taken off in sealing sealing, which is characterized in that The hot sealing layer is with a thickness of 6-15 μm.
- 6. heat seal strength described in a kind of claim 1 is constant and sealing seals the preparation method for firmly easily taking off film base material film, It is characterized in that: using three-layer co-extruded technique out, corona layer, middle layer, the corresponding material resin of hot sealing layer being separately added into respectively Extruder barrel in, the melt temperature of control corona layer resin is 190-240 DEG C, and the melt temperature of intermediate layer resin is 200- 240 DEG C, the melt temperature of hot sealing layer resin is 200-240 DEG C, is cooled down after the plastic extrusion of melting through propelling the price of, traction sizing, then By sided corona treatment, obtain described easily taking off film base material film.
- 7. a kind of take off film comprising easily taking off the easy of film base material film described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303439.4A CN110126407B (en) | 2019-04-16 | 2019-04-16 | High-temperature-resistant steaming and boiling easy-to-tear film base material film, easy-to-tear film containing same and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303439.4A CN110126407B (en) | 2019-04-16 | 2019-04-16 | High-temperature-resistant steaming and boiling easy-to-tear film base material film, easy-to-tear film containing same and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110126407A true CN110126407A (en) | 2019-08-16 |
| CN110126407B CN110126407B (en) | 2024-05-28 |
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| CN201910303439.4A Active CN110126407B (en) | 2019-04-16 | 2019-04-16 | High-temperature-resistant steaming and boiling easy-to-tear film base material film, easy-to-tear film containing same and preparation method |
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| CN (1) | CN110126407B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112659707A (en) * | 2020-12-17 | 2021-04-16 | 浙江大汇新材料有限公司 | Easy-to-tear food packaging cover film and preparation method thereof |
| CN113427871A (en) * | 2021-05-13 | 2021-09-24 | 惠州德昉高分子膜材料有限公司 | Easily-torn film material capable of resisting high-temperature cooking and preparation method thereof |
| CN113427872A (en) * | 2021-05-13 | 2021-09-24 | 惠州德昉高分子膜材料有限公司 | PP/PE easy-to-tear film material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112659707A (en) * | 2020-12-17 | 2021-04-16 | 浙江大汇新材料有限公司 | Easy-to-tear food packaging cover film and preparation method thereof |
| CN113427871A (en) * | 2021-05-13 | 2021-09-24 | 惠州德昉高分子膜材料有限公司 | Easily-torn film material capable of resisting high-temperature cooking and preparation method thereof |
| CN113427872A (en) * | 2021-05-13 | 2021-09-24 | 惠州德昉高分子膜材料有限公司 | PP/PE easy-to-tear film material and preparation method thereof |
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