CN108773137A - Automatically it is packed for polyethylene film and preparation method thereof - Google Patents
Automatically it is packed for polyethylene film and preparation method thereof Download PDFInfo
- Publication number
- CN108773137A CN108773137A CN201810666352.9A CN201810666352A CN108773137A CN 108773137 A CN108773137 A CN 108773137A CN 201810666352 A CN201810666352 A CN 201810666352A CN 108773137 A CN108773137 A CN 108773137A
- Authority
- CN
- China
- Prior art keywords
- parts
- density
- layer
- 10min
- lldpe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- B32B27/06—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
-
- 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
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses one kind being packed for polyethylene film automatically, including outer layer, middle layer and the internal layer overlapped successively；Outer layer by following parts by weight material composition：20-40 parts LDPE, 30-50 parts LLDPE, 20-40 parts of melting means are 1.1g/10min, density 0.920g/cm3LLDPE；Middle layer by following parts by weight material composition：10-30 parts of LDPE, 30-50 parts of melting means are 1.1g/10min, density 0.920g/cm3LLDPE, 30-50 part melting means be 2.4g/10min, density 0.921g/cm3LLDPE；Internal layer by following parts by weight material composition：10-30 parts LDPE, 30-50 parts LLDPE, 10-30 parts of m-LLDPE.The present invention solves the problems, such as that polyethylene film thermal viscosity is relatively low and broken bag rate is higher.
Description
Technical field
The present invention relates to a kind of polyethylene films, more specifically, it be related to it is a kind of be packed for automatically polyethylene film and
Preparation method.
Background technology
Polyethylene is one of most important resin in vistanex, is with fastest developing speed and in great demand in the world today
A kind of material.Polyethylene includes mainly low density polyethylene (LDPE), linear low density polyethylene (LLDPE), medium density polyethylene, high-density polyethylene
Alkene etc. has very extensive application in fields such as packaging, medical treatment, tubing.
In the prior art, the Chinese invention patent application file that application publication number is CN105968489A is can refer to, it is public
A kind of preparation method of polyethylene antibiotic packing film has been opened, has been indicated with parts by weight, by 0.3-1.0 parts of silver-carrying nano titanium dioxides
Titanium antiseptic is added in 100 parts of polyvinyl resins, adds 0.06-0.24 parts of antioxidant 1076s and 0.04-0.16 parts auxiliary
Aid anti-oxidants 168 are granulated, dry, blown film after being sufficiently mixed in high-speed mixer, and it is thin that polyethylene antibiotic packaging is prepared
Film.
Though this polyethylene antibiotic packing film can reach 90% to the bacteriostasis rate of Escherichia coli and staphylococcus aureus
More than, have the advantages that nontoxic, safety and sanitation, but Hot Tack strength is poor and fall strength of briquette is poor, and intensity is relatively low.
In the prior art, the Chinese invention patent application file that application publication number is CN106432888A is can refer to, it is public
A kind of high intensity anti-static polythene film and its preparation method and application is opened, the polyethylene film is with weight percent
Meter contains following component：Low density polyethylene (LDPE)：15%-35%, linear low density polyethylene：50%-70%, the poly- second of metallocene
Alkene：5% -15%, opening agent：1%-4%；Antistatic agent：1%-3%, in addition, by being with low density polyethylene (LDPE) (LDPE)
Base-material, by linear low density polyethylene (LLDPE), metallocene PE (MLLPE) blending extrusion, granulation, blowing is added
At so that the polyethylene film has preferable drawing force and antistatic property.
This high intensity anti-static polythene film is but because hot sticky strong with preferable drawing force and antistatic property
Degree and impact strength are poor, and in packaging, broken bag rate is higher.
Therefore how to prepare a kind of Hot Tack strength and fall strength of briquette is higher, and the lower polyethylene film of broken bag rate is to need
It solves the problems, such as.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide one kind being packed for polyethylene film automatically,
It keeps the broken bag rate of packaging bag relatively low with preferable Hot Tack strength and resistance to fall strength of briquette.
To achieve the above object, the present invention provides following technical solutions：One kind being packed for polyethylene film automatically, including
Outer layer, middle layer and the internal layer overlapped successively；The outer layer by following parts by weight material composition：20-40 parts of melting means are
1.9g/10min density 0.924g/cm3LDPE, 30-50 part melting means be 1.0g/10min, density 0.92g/cm3's
LLDPE, 20-40 parts of melting means are 1.1g/10min, density 0.920g/cm3LLDPE and 3-5 parts of emulsifier；In described
Interbed by following parts by weight material composition：10-30 parts of melting means are 1.9g/10min, density 0.925g/cm3LDPE,
30-50 parts of melting means are 1.1g/10min, density 0.920g/cm3LLDPE, 30-50 part melting means be 2.4g/10min, density
For 0.921g/cm3The emulsifier of LLDPE, 7-9 part, 5-15 parts of density be 1.47g/cm3Polyether-ether-ketone, 10-14 parts poly-
The white masterbatch of ethylene；The internal layer by following parts by weight material composition：10-30 parts of melting means are 1.9g/10min, and density is
0.925g/cm3LDPE, 30-50 part melting means be 1.0g/10min, density 0.92g/cm3LLDPE, 10-30 part m-
LLDPE, 10-30 parts of makrolon, 2-2.8 parts of opening agents, 1-1.4 parts of slipping agents, 2-6 parts of emulsifiers.
By using above-mentioned technical proposal, the limited strength of polyethylene film, thus also need under normal conditions by its with
The progress of other films is compound, and outer layer is that PE films carry out compound one layer with other films, and wherein LDPE has excellent processing performance
And sealing property, there is preferable impact resistance and stability, pressure resistance and the impact resistance of product can be improved, it is preferably sharp
The 2420H of company of the Basels An De production, it is 1.0g/10min, density 0.92g/cm that melting means is added in the LDPE of outer layer3
LLDPE and melting means be 1.1g/10min, density 0.920g/cm3LLDPE, preferred Philippine NPCA companies life respectively
The 2045G of the LL0209AA and Tao Shi E.I.Du Pont Company production of production, is added aforementioned proportion and the melting means LLDPE different with density, energy
Enough improve the elongation and impact strength of PE films；Middle layer is the articulamentum of outer layer and internal layer, to ensure outer layer and internal layer knot
The different LLDPE of melting means is added in the middle layer preferably LDPE of the 2426H of Yulin company of middle Shenhua production in the compactness of conjunction,
The LL0220KJ that the 2045G of preferred Tao Shi E.I.Du Pont Company production and Iranian petro-chemical corporation generate respectively, polyether-ether-ketone can make PE
There is film good toughness and rigidity, the preferably HM-10 of La Ti companies of Italy production, middle layer to be not only outer layer and internal layer
Articulamentum, be also used as dyed layer, according to production needs, the present invention is added further preferably into middle layer 10-14 parts gather
The white masterbatch of ethylene increases the covering power of polyethylene film, the WPE-01 of preferred Pu Li parent companys production；Internal layer is and packaging
Directly be in contact one layer of content, existing technology of the package is typically will be internal product-filled to it after packing film paper bag
It is being sealed, during carrying out filling, product is easily attached to internal layer surface, influences the sealing for subsequently sealing process
Property and heat seal strength, therefore m-LLDPE is added in outer layers of the present invention, with excellent antifouling property, Hot Tack strength and
Heat seal strength and solvent resistant shape and impact resistance have stronger adaptation and heat seal strength after ensureing the heat-sealing of PE films, interior
The 2018HA of the preferred Exxon Mobil Corporation's productions of m-LLDPE, the present invention go back in inner layer and makrolon are added, be used in layer
The processing performance for improving PE films, improves the intensity and fatigue durability of internal layer, keeps internal layer dimensionally stable, preferred Taiwan South Asia public
Take charge of the 5410G2 of production；The PE films of the present invention include outer layer, middle layer and internal layer successively, and outer layer has relatively strong with other films
Multiplicity, excellent mechanical property, there is stronger bond strength, internal layer to have excellent anti-pollution for middle layer and outer layer and internal layer
Metachromia has after heat-sealing compared with high adhesion and heat seal strength, therefore when PE films provided by the invention pack product, tool
There is an excellent heat sealability, material has higher adaptation and tensile strength after ensureing heat-sealing, and then improves anti-leakage and resistance to fall
Shape is fallen, broken bag rate is reduced.
The present invention is further arranged to：Including outer layer, middle layer and the internal layer overlapped successively；The outer layer is by following weight
The material composition of part：30 parts of melting means are 1.9g/10min, density 0.924g/cm3LDPE, 40 parts of melting means be 0.9g/
10min, density 0.92g/cm3LLDPE, 30 parts of melting means be 1.1g/10min, density 0.920g/cm3LLDPE and 4
The emulsifier of part；The middle layer by following parts by weight material composition：20 parts of melting means are 1.9g/10min, and density is
0.925g/cm3LDPE, 40 parts of melting means be 1.1g/10min, density 0.920g/cm3LLDPE, 40 parts of melting means be 2.4g/
10min, density 0.921g/cm3LLDPE, 8 parts of emulsifier, 10 parts of density be 1.47g/cm3Polyether-ether-ketone, 12 parts
The white masterbatch of polyethylene；The internal layer by following parts by weight material composition：20 parts of melting means are 1.9g/10min, and density is
0.925 g/cm3LDPE, 40 parts of melting means be 1.0g/10min, density 0.92g/cm3LLDPE, 20 parts of m-LLDPE, 20
Part makrolon, 2.6 parts of opening agents, 1.2 parts of slipping agents, 4 parts of emulsifiers.
By using above-mentioned technical proposal, the proportioning of each raw material is more reasonable in above-mentioned formula, can reduce each raw material
Waste.
The present invention is further arranged to：The opening agent refers to silica, and the grain size of silica is 4-5 μm.
By using above-mentioned technical proposal, silica opening agent can effectively improve the opening performance of PE films, prevent PE
Together, opening is difficult for film coalescence.
The present invention is further arranged to：The layer thickness ratio of the outer layer, middle layer and internal layer is 3:4:3.
By using above-mentioned technical proposal, the layer thickness ratio of outer layer, middle layer and internal layer is controlled 3:4:3, this
Kind ratio can ensure that outer layer, middle layer and internal layer have preferable barrier property, while having excellent heat sealability and stretching strong
Degree.
The present invention is further arranged to：The slipping agent refers to high-purity oleamide.
By using above-mentioned technical proposal, PE film surfaces can be rapidly migrated to, improve opening performance, reduce energy consumption, and
Keep film thickness uniform, prevents that fold, high-purity oleamide have antistatic property, can reduce PE membrane products surface
Adhering dust.
In view of the deficiencies of the prior art, the present invention intends to provide a kind of to be packed for polyethylene film automatically
Preparation method, the polyethylene film prepared have preferable Hot Tack strength and resistance to fall strength of briquette, make the broken bag rate of packaging bag compared with
It is low.
To achieve the above object, the present invention provides following technical solutions：A kind of automatic system for being packed for polyethylene film
Preparation Method includes the following steps：(1) it heats up：It is heated up to three-layer co-extruded blow moulding machine by the way of subregion continuous warming,
Total heating-up time is 180-220min, and final temperature reaches that internal layer host temperature is 170-200 DEG C, middle layer host temperature is
170-200 DEG C, outer layer host temperature be 170-205 DEG C, die head temperature is 220-230 DEG C；
(2) dispensing：The dispensing of internal layer, surface layer and middle layer is respectively put into three-layer co-extruded blown film unit according to formula and is spat
Material, layer thickness ratio are set as internal layer:Middle layer:Surface layer=3:4:3；
(3) it is switched on：Power-up sequence is outer layer host, middle layer host, internal layer host, is spaced 1-2 minutes sequences and is switched on, three layers of master
Machine preferably must be held in 30-60 revs/min when being switched on；
(4) melting extrusion：The mixed material that cooperation is completed is placed in host, the temperature of melting is controlled at 140-250 DEG C, three
The revolution of layer host is at 40-150 revs/min；
(5) draw film：By rotary pneumatic axis air-cooler FREQUENCY CONTROL in 10Hz-60Hz, it is pulled up and mediates colloidal sol rapidly, ensure to lead
Draw the 30-40m/min of speed, and compressed air is poured to die head inflating port, control blow-up ratio is between 1.5-3.5, with advance
The traction rope of placement is by film bubble average rate pull-up；
(6) splitting winding：Film bubble is entered into corona machine through deflector roll, enters wind-up roll machine by correction intermediate plate later, cuts into two
Piece is simultaneously wound with refill；
(7) it shuts down：Corona electromechanical source is closed, host power switch is closed.
By using above-mentioned technical proposal, meet prescribed requirement, PE films using PE film thicknesses and width made from this method
Plasticizing is good, the smooth no wrinkle of surfacing, bubble and perforation rupture, also have quite excellent mechanical strength, toughness and compared with
For soft smooth feel, will heat up the time is set in 180-220min, can make substantially uniformity inside three-layer co-extruded blown film unit
Heated, extrusion temperature is excessively high to cause resin easily to decompose, and PE films are more crisp, and longitudinal tensile strength is low, and extrusion temperature is too low, can lead
It causes Plastic bad, reduces tensile strength, lustrous surface and the transparency of PE films, therefore extrusion temperature control is existed
It is more suitable between 140-250 DEG C, ensure that hauling speed in 30-40m/min, can prevent from drawing too fast, the longitudinal stretching of PE films
Intensity increases, and thickness reduces, and is also possible to prevent to draw slow, the longitudinal tensile strength reduction of PE films, thickness increase, blow-up ratio
Refer to the ratio after inflation between the diameter and the caliber of non-inflation of film bubble, blow-up ratio increase can improve the laterally strong of PE films
Degree, but blow-up ratio crosses conference and causes film bubble unstable, and film is susceptible to fold, therefore blow-up ratio control is between 1.5-3.5
It is advisable；It is squeezed out at relatively high temperatures, improves processing performance, improve the tensile strength and impact strength of PE films.
The present invention is further arranged to：The three-layer co-extruded Blown-film line that heating is completed in the step (1) needs to keep the temperature
It is switched on again after 20-30min.
By using above-mentioned technical proposal 20- is kept the temperature after the completion of the temperature of three-layer co-extruded blown film unit heats up
30min can be such that the temperature of each layer host is more uniformly distributed, and keep each area completely heated, prevent in process of production since three layers total
Extrusion film unit uneven heating is even to cause product quality bad.
The present invention is further arranged to：The step (3) needs replacing each layer strainer before booting, highly necessary opens wind
Machine cleans the die lip of mouth mold.
By using above-mentioned technical proposal, used strainer is replaced, the net on the strainer after use can be prevented
Hole be blocked, influence the use of strainer, using wind turbine can to vane air port carry out wind-force cleaning, it can be ensured that vane air port without
Foreign matters from being blocked cleans the die lip of mouth mold, and gel and impurity can be prevented to be attached on the die lip of mouth mold.
The present invention is further arranged to：Main-machine screw uses two-flight screw, and the draw ratio of screw rod in the step (4)
It is 30:1.
By using above-mentioned technical proposal, two-flight screw can be passed out the molten state material of extrusion is relatively stable
Come, plasticizing is good, has preferable processing effect.
The present invention is further arranged to：Circulating water temperature control system is had additional in the step (4) on host and metering adds
Expect device.
By using above-mentioned technical proposal, circulating water temperature control system is added on host, can reach temperature-controllable
Effect, measurement charging device can ensure that three layers reach adequate thickness.
The present invention is further arranged to：In the step (4) squeeze out when adjusting device the thickness uniformity, keep the limit inclined
Difference is ± 6%.
By using above-mentioned technical proposal, make layer thickness than limit deviation control ± 6%, make layer thickness than inclined
Difference it is smaller, meet outer layer, middle layer, internal layer layer thickness ratio be 3:4:3, layer thickness is preferable than rationally having, PE films
Impact strength and heat seal strength.
In conclusion the present invention has the advantages that compared with the prior art：
(1) PE films of the invention include outer layer, middle layer and internal layer successively, outer layer and other films have stronger multiplicity,
Excellent mechanical property, middle layer with outer layer and internal layer there is stronger bond strength, internal layer to have excellent resistance tocrocking, heat
It is honored as a queen with compared with high adhesion and heat seal strength, therefore when PE films provided by the invention pack product, has excellent
Heat sealability, ensure heat-sealing after material have higher adaptation and tensile strength, and then improve anti-leakage and it is resistance to fall shape, subtract
Few broken bag rate；
(2) by the present invention in that the silica for being 4-5 μm with grain size, can effectively improve the opening performance of PE films, prevent PE
Together, opening is difficult for film coalescence；
(3) by the present invention in that using high-purity oleamide as slipping agent, PE film surfaces can be rapidly migrated to, Kekelé structure count is improved
Can, energy consumption is reduced, and keep film thickness uniform, prevents that fold, high-purity oleamide have antistatic property, can subtract
Few PE membrane product surface adhesion dusts.
Description of the drawings
Fig. 1 is the line chart of the Hot Tack strength of polyethylene made from embodiment 1-3 and comparative example 1-4.
Specific implementation mode
Melting means is 1.9g/10min, density 0.924g/cm in following embodiment3LDPE be Li Ande eight Sai Er public
The 2420H, melting means 1.9g/10min, density 0.925g/cm provided is provided3LDPE be that Chinese Yulin company provides
2426H, melting means 1.0g/10min, density 0.92g/cm3LLDPE be NPCA companies of Philippine provide LL0209AA,
Melting means is 1.1g/10min, density 0.920g/cm3LLDPE be 2045G that Tao Shi E.I.Du Pont Company provides, melting means is
2.4g/10min density 0.921g/cm3LLDPE be LL0220KJ that Iranian petro-chemical corporation provides；M-LLDPE is
The 2018HA that Exxon Mobil Corporation provides, makrolon are the 5410G2 that Taiwan South Asia company provides, and density is 1.47 g/
cm3Polyether-ether-ketone be HM-10 that Italian La Ti companies provide, polyethylene is that Pu Li parent companys provide with white masterbatch
WPE-01.
Embodiment 1：One kind being packed for polyethylene film automatically, including outer layer, middle layer and the internal layer overlapped successively；
The outer layer by following parts by weight material composition：20 parts of melting means are 1.9g/10min, density 0.924g/cm3's
LDPE, 30 parts of melting means are 1.0g/10min, density 0.92g/cm3LLDPE, 20 parts of melting means be 1.1g/10min, density is
0.920g/cm3LLDPE and 3 part of emulsifier；
The middle layer by following parts by weight material composition：10 parts of melting means are 1.9g/10min, density 0.925g/cm3's
LDPE, 30 parts of melting means are 1.1g/10min, density 0.920g/cm3LLDPE, 30 parts of melting means be 2.4g/10min, density
For 0.921g/cm3LLDPE, 7 parts of emulsifier, 5 parts of density be 1.47g/cm3Polyether-ether-ketone, 10 parts of polyethylene is with white
Masterbatch；
The internal layer by following parts by weight material composition：10 parts of melting means are 1.9g/10min, density 0.925g/cm3's
LDPE, 30 parts of melting means are 1.0g/10min, density 0.92g/cm3LLDPE, 10 parts of m-LLDPE, 10 parts of makrolon, 2
The silica, 1 part of high-purity oleamide, 2 parts of emulsifiers that part grain size is 4-5 μm.
The above-mentioned automatic preparation method for being packed for polyethylene film includes the following steps：
(1) it heats up：It is heated up to three-layer co-extruded blow moulding machine by the way of subregion continuous warming, total heating-up time is
180min, final temperature reach 170 DEG C of 1st area of internal layer host, 200 DEG C of 2nd area, 200 DEG C of 3rd area, 200 DEG C of 4th area, 170 DEG C of 5th area；It is intermediate
180 DEG C of 1st area of floor host, 200 DEG C of 2nd area, 190 DEG C of 3rd area, 195 DEG C of 4th area, 170 DEG C of 5th area；180 DEG C of 1st area of outer layer host, 2 areas 198
DEG C, 205 DEG C of 3rd area, 205 DEG C of 4th area, 170 DEG C of 5th area；221 DEG C of 1st area of die head, 223 DEG C of 2nd area, 220 DEG C of 3rd area, 225 DEG C of 4th area, 5 areas 230
DEG C, it will heat up the three-layer co-extruded Blown-film line heat preservation 20min of completion；
(2) dispensing：The dispensing of internal layer, surface layer and middle layer is respectively put into three-layer co-extruded blown film unit according to formula and is spat
Material, layer thickness ratio are set as internal layer:Middle layer:Surface layer=3:4:3；
(3) it is switched on：Each layer strainer is replaced, wind turbine is opened, cleans the die lip of mouth mold, power-up sequence is outer layer host, middle layer master
Machine, internal layer host are spaced 1 minute sequence and are switched on, and three layers of host preferably must be held in 30 revs/min when being switched on, main-machine screw uses
Two-flight screw, and the draw ratio of screw rod is 30:1, circulating water temperature control system and metered charge dress are had additional on host
It sets, the thickness uniformity of adjusting device, it is ± 6% to make limit deviation；
(4) melting extrusion：Mixed material that cooperation is completed is placed in host, the control of the temperature of melting is at 140 DEG C, three layers of master
The revolution of machine is at 40 revs/min；
(5) draw film：By rotary pneumatic axis air-cooler FREQUENCY CONTROL in 10Hz, it is pulled up and is mediated rapidly colloidal sol, ensures traction speed
The 30m/min of degree, and compressed air is poured to die head inflating port, control blow-up ratio is between 1.5, with the traction being pre-placed
It restricts film bubble average rate pull-up；
(6) splitting winding：Film bubble is entered into corona machine through deflector roll, enters wind-up roll machine by correction intermediate plate later, cuts into two
Piece is simultaneously wound with refill；
(7) it shuts down：Corona electromechanical source is closed, host power switch is closed.
Embodiment 2：One kind being packed for polyethylene film automatically, including outer layer, middle layer and the internal layer overlapped successively；
The outer layer by following parts by weight material composition：30 parts of melting means are 1.9g/10min, density 0.924g/cm3's
LDPE, 40 parts of melting means are 1.0g/10min, density 0.92g/cm3LLDPE, 30 parts of melting means be 1.1g/10min, density is
0.920g/cm3LLDPE and 4 part of emulsifier；
The middle layer by following parts by weight material composition：20 parts of melting means are 1.9g/10min, density 0.925g/cm3's
LDPE, 40 parts of melting means are 1.1g/10min, density 0.920g/cm3LLDPE, 40 parts of melting means be 2.4g/10min, density
For 0.921g/cm3LLDPE, 8 parts of emulsifier, 10 parts of density be 1.47g/cm3Polyether-ether-ketone, 12 parts polyethylene use
White masterbatch；
The internal layer by following parts by weight material composition：20 parts of melting means are 1.9g/10min, density 0.925g/cm3's
LDPE, 40 parts of melting means are 1.0g/10min, density 0.92g/cm3LLDPE, 20 parts of m-LLDPE, 20 parts of makrolon,
The silica, 1.2 parts of high-purity oleamides, 4 parts of emulsifiers that 2.4 parts of grain sizes are 4-5 μm.
The above-mentioned automatic preparation method for being packed for polyethylene film includes the following steps：
(1) it heats up：It is heated up to three-layer co-extruded blow moulding machine by the way of subregion continuous warming, total heating-up time is
180min, final temperature reach 170 DEG C of 1st area of internal layer host, 200 DEG C of 2nd area, 200 DEG C of 3rd area, 200 DEG C of 4th area, 170 DEG C of 5th area；It is intermediate
180 DEG C of 1st area of floor host, 200 DEG C of 2nd area, 190 DEG C of 3rd area, 195 DEG C of 4th area, 170 DEG C of 5th area；180 DEG C of 1st area of outer layer host, 2 areas 198
DEG C, 205 DEG C of 3rd area, 205 DEG C of 4th area, 170 DEG C of 5th area；221 DEG C of 1st area of die head, 223 DEG C of 2nd area, 220 DEG C of 3rd area, 225 DEG C of 4th area, 5 areas 230
DEG C, it will heat up the three-layer co-extruded Blown-film line heat preservation 20min of completion；
(2) dispensing：The dispensing of internal layer, surface layer and middle layer is respectively put into three-layer co-extruded blown film unit according to formula and is spat
Material, layer thickness ratio are set as internal layer:Middle layer:Surface layer=3:4:3；
(3) it is switched on：Each layer strainer is replaced, wind turbine is opened, cleans the die lip of mouth mold, power-up sequence is outer layer host, middle layer master
Machine, internal layer host are spaced 1.5 minutes sequences and are switched on, and three layers of host preferably must be held in 45 revs/min when being switched on, and main-machine screw makes
With two-flight screw, and the draw ratio of screw rod is 30:1, circulating water temperature control system and metered charge dress are had additional on host
It sets, the thickness uniformity of adjusting device, it is ± 6% to make limit deviation；
(4) melting extrusion：Mixed material that cooperation is completed is placed in host, the control of the temperature of melting is at 195 DEG C, three layers of master
The revolution of machine is at 95 revs/min；
(5) draw film：By rotary pneumatic axis air-cooler FREQUENCY CONTROL in 35Hz, it is pulled up and is mediated rapidly colloidal sol, ensures traction speed
The 35m/min of degree, and compressed air is poured to die head inflating port, control blow-up ratio is between 2.5, with the traction being pre-placed
It restricts film bubble average rate pull-up；
(6) splitting winding：Film bubble is entered into corona machine through deflector roll, enters wind-up roll machine by correction intermediate plate later, cuts into two
Piece is simultaneously wound with refill；
(7) it shuts down：Corona electromechanical source is closed, host power switch is closed.
Embodiment 3：One kind being packed for polyethylene film automatically, including outer layer, middle layer and the internal layer overlapped successively；
The outer layer by following parts by weight material composition：40 parts of melting means are 1.9g/10min, density 0.924g/cm3's
LDPE, 50 parts of melting means are 1.0g/10min, density 0.92g/cm3LLDPE, 40 parts of melting means be 1.1g/10min, density is
0.920g/cm3LLDPE and 5 part of emulsifier；
The middle layer by following parts by weight material composition：30 parts of melting means are 1.9g/10min, density 0.925g/cm3's
LDPE, 50 parts of melting means are 1.1g/10min, density 0.920g/cm3LLDPE, 50 parts of melting means be 2.4g/10min, density
For 0.921g/cm3LLDPE, 9 parts of emulsifier, 15 parts of density be 1.47g/cm3Polyether-ether-ketone, 14 parts polyethylene use
White masterbatch；
The internal layer by following parts by weight material composition：30 parts of melting means are 1.9g/10min, density 0.925g/cm3's
LDPE, 50 parts of melting means are 1.0g/10min, density 0.92g/cm3LLDPE, 30 parts of m-LLDPE, 30 parts of makrolon,
The silica, 1.4 parts of high-purity oleamides, 6 parts of emulsifiers that 2.8 parts of grain sizes are 4-5 μm.
The above-mentioned automatic preparation method for being packed for polyethylene film includes the following steps：
(1) it heats up：It is heated up to three-layer co-extruded blow moulding machine by the way of subregion continuous warming, total heating-up time is
180min, final temperature reach 170 DEG C of 1st area of internal layer host, 200 DEG C of 2nd area, 200 DEG C of 3rd area, 200 DEG C of 4th area, 170 DEG C of 5th area；It is intermediate
180 DEG C of 1st area of floor host, 200 DEG C of 2nd area, 190 DEG C of 3rd area, 195 DEG C of 4th area, 170 DEG C of 5th area；180 DEG C of 1st area of outer layer host, 2 areas 198
DEG C, 205 DEG C of 3rd area, 205 DEG C of 4th area, 170 DEG C of 5th area；221 DEG C of 1st area of die head, 223 DEG C of 2nd area, 220 DEG C of 3rd area, 225 DEG C of 4th area, 5 areas 230
DEG C, it will heat up the three-layer co-extruded Blown-film line heat preservation 20min of completion；
(2) dispensing：The dispensing of internal layer, surface layer and middle layer is respectively put into three-layer co-extruded blown film unit according to formula and is spat
Material, layer thickness ratio are set as internal layer:Middle layer:Surface layer=3:4:3；
(3) it is switched on：Each layer strainer is replaced, wind turbine is opened, cleans the die lip of mouth mold, power-up sequence is outer layer host, middle layer master
Machine, internal layer host are spaced 2 minutes sequences and are switched on, and three layers of host preferably must be held in 60 revs/min when being switched on, main-machine screw uses
Two-flight screw, and the draw ratio of screw rod is 30:1, circulating water temperature control system and metered charge dress are had additional on host
It sets, the thickness uniformity of adjusting device, it is ± 6% to make limit deviation；
(4) melting extrusion：Mixed material that cooperation is completed is placed in host, the control of the temperature of melting is at 250 DEG C, three layers of master
The revolution of machine is at 150 revs/min；
(5) draw film：By rotary pneumatic axis air-cooler FREQUENCY CONTROL in 60Hz, it is pulled up and is mediated rapidly colloidal sol, ensures traction speed
The 40m/min of degree, and compressed air is poured to die head inflating port, control blow-up ratio is between 3.5, with the traction being pre-placed
It restricts film bubble average rate pull-up；
(6) splitting winding：Film bubble is entered into corona machine through deflector roll, enters wind-up roll machine by correction intermediate plate later, cuts into two
Piece is simultaneously wound with refill；
(7) it shuts down：Corona electromechanical source is closed, host power switch is closed.
Comparative example 1：One kind being packed for polyethylene film automatically, including outer layer, middle layer and the internal layer overlapped successively；
The outer layer by following parts by weight material composition：10 parts of melting means are 1.9g/10min, density 0.924g/cm3's
LDPE, 80 parts of melting means are 1.0g/10min, density 0.92g/cm3LLDPE, 10 parts of melting means be 1.1g/10min, density is
0.920g/cm3LLDPE and 4 part of emulsifier；
The middle layer by following parts by weight material composition：20 parts of melting means are 1.9g/10min, density 0.925g/cm3's
LDPE, 40 parts of melting means are 1.1g/10min, density 0.920g/cm3LLDPE, 40 parts of melting means be 2.4g/10min, density
For 0.921g/cm3LLDPE, 8 parts of emulsifier, 10 parts of density be 1.47g/cm3Polyether-ether-ketone, 12 parts polyethylene use
White masterbatch；
The internal layer by following parts by weight material composition：20 parts of melting means are 1.9g/10min, density 0.925g/cm3's
LDPE, 40 parts of melting means are 1.0g/10min, density 0.92g/cm3LLDPE, 20 parts of m-LLDPE, 20 parts of makrolon,
The silica, 1.2 parts of high-purity oleamides, 4 parts of emulsifiers that 2.4 parts of grain sizes are 4-5 μm.
This is packed for the preparation method such as embodiment 2 of polyethylene film, and extruder technical parameter and implementation automatically
Example 2 is identical.
Comparative example 2：One kind being packed for polyethylene film automatically, including outer layer, middle layer and the internal layer overlapped successively；
The outer layer by following parts by weight material composition：30 parts of melting means are 1.9g/10min, density 0.924g/cm3's
LDPE, 40 parts of melting means are 1.0g/10min, density 0.92g/cm3LLDPE, 30 parts of melting means be 1.1g/10min, density is
0.920g/cm3LLDPE and 4 part of emulsifier；
The middle layer by following parts by weight material composition：40 parts of melting means are 1.9g/10min, density 0.925g/cm3's
LDPE, 60 parts of melting means are 1.1g/10min, density 0.920g/cm3LLDPE, 20 parts of melting means be 2.4g/10min, density
For 0.921g/cm3LLDPE, 8 parts of emulsifier, 10 parts of density be 1.47g/cm3Polyether-ether-ketone, 12 parts polyethylene use
White masterbatch；
The internal layer by following parts by weight material composition：20 parts of melting means are 1.9g/10min, density 0.925g/cm3's
LDPE, 40 parts of melting means are 1.0g/10min, density 0.92g/cm3LLDPE, 20 parts of m-LLDPE, 20 parts of makrolon,
The silica, 1.2 parts of high-purity oleamides, 4 parts of emulsifiers that 2.4 parts of grain sizes are 4-5 μm.
This is packed for the preparation method such as embodiment 2 of polyethylene film, and extruder technical parameter and implementation automatically
Example 2 is identical.
Comparative example 3：One kind being packed for polyethylene film automatically, including outer layer, middle layer and the internal layer overlapped successively；
The outer layer by following parts by weight material composition：30 parts of melting means are 1.9g/10min, density 0.924g/cm3's
LDPE, 40 parts of melting means are 1.0g/10min, density 0.92g/cm3LLDPE, 30 parts of melting means be 1.1g/10min, density is
0.920g/cm3LLDPE and 4 part of emulsifier；
The middle layer by following parts by weight material composition：20 parts of melting means are 1.9g/10min, density 0.925g/cm3's
LDPE, 40 parts of melting means are 1.1g/10min, density 0.920g/cm3LLDPE, 40 parts of melting means be 2.4g/10min, density
For 0.921g/cm3LLDPE, 8 parts of emulsifier, 10 parts of density be 1.47g/cm3Polyether-ether-ketone, 12 parts polyethylene use
White masterbatch；
The internal layer by following parts by weight material composition：40 parts of melting means are 1.9g/10min, density 0.925g/cm3's
LDPE, 20 parts of melting means are 1.0g/10min, density 0.92g/cm3LLDPE, 40 parts of m-LLDPE, 20 parts of makrolon,
The silica, 1.2 parts of high-purity oleamides, 4 parts of emulsifiers that 2.4 parts of grain sizes are 4-5 μm.
This is packed for the preparation method such as embodiment 2 of polyethylene film, and extruder technical parameter and implementation automatically
Example 2 is identical.
Comparative example 4：Use Authorization Notice No. for the Chinese invention patent file of CN102179985B, it is poly- that it discloses one kind
Vinyl film and preparation method thereof, polyethylene film include successively：Composite layer, middle layer and hot sealing layer；Composite layer includes：
The low density polyethylene (LDPE) of 25wt%-40wt%, the linear low density polyethylene of 25wt%-40wt% and 33wt%-45wt%
Modified metallocene linear low density polyethylene；The middle layer includes：The low density polyethylene (LDPE) of 25wt%-50wt% and
50wt%-75wt% linear low density polyethylene；Hot sealing layer includes：The low density polyethylene (LDPE) of 28wt%-35wt% and
The linear low density polyethylene of 65wt%-72wt%.The preparation method of the polyethylene film includes：By the composite layer, in
The resin raw material of interbed and hot sealing layer is in 120 DEG C~160 DEG C Coextrusion Blow Mouldings.
The technological parameter of extruder is as shown in table 1 in embodiment 1-3 and comparative example 1-3：
The technological parameter of extruder in table 1 embodiment 1-3 and comparative example 1-3
It is 1.9g/10min, density 0.925g/cm by melting means in embodiment 1-3 and comparative example 1-33LDPE be labeled as A, melt
Refer to is 1.0g/10min, density 0.92g/cm3LLDPE be labeled as B, melting means 1.1g/10min, density 0.920g/cm3
LLDPE it is as shown in table 2 labeled as the dosage of each raw material in C, embodiment 1-3 and comparative example 1-3：
The materials table of each raw material in table 2 embodiment 1-3 and comparative example 1-3
Three pieces of polyethylene film obtained in Example 1-3 and comparative example 1-4, the square that every piece of sample is 20 × 20cm will
Each sample is placed on temperature and is 23 DEG C, carries out performance detection, three pieces of sample testing results in the environment of relative humidity is 50%
It is averaged, testing result is as shown in table 3：
The performance test results of polyethylene film made from table 3 embodiment 1-3 and comparative example 1-4
The properties that the polyethylene film made from embodiment 1-3 it can be seen from each item data in table 3 detects are superior to compare
The properties of polyethylene film detection made from example 1-4.
According to the formula and the obtained polyethylene film of preparation method in embodiment 1-3 and comparative example 1-4, by polyethylene film
Heat-sealing bag making is carried out at that same temperature, is prepared into the heat-sealing bag of 50 × 50cm, and each embodiment and each comparative example take 10
A sample, to heat-sealing bag in filling 500g water, then by heat-sealing bag seal under the same conditions, carry out drop test and
Pressure resistance experiment, test result are shown in Table 4：
Table 4 embodiment 1-3 and comparative example 1-4 heat-sealing bags obtained fall and pressure-resistant experimental results
It can be obtained by the data in table 4, the packaging bag pressure resistance better performances that polyethylene film made from embodiment 1-3 seals,
Broken bag rate is relatively low, and the durability for the packaging bag that polyethylene film made from comparative example 1-4 seals is poor, and broken bag rate is higher.
Polyethylene film made from embodiment 1-3 and comparative example 1-4 is determined into wide 15cm, long 35cm immediately along the longitudinal direction
Sample, each embodiment and comparative example determines 3 samples, with reference to testing standard YY/T1433-2016《Medical instrument software
Packaging material Thermal Sealing intensity (Hot Tack strength) test method》Carry out the test of Hot Tack strength performance, the test of three samples
Results are averaged, and test result is as shown in table 5：
The test result of the Hot Tack strength of polyethylene made from table 5 embodiment 1-3 and comparative example 1-4
By data conversion is at line chart in table 5, as shown in Figure 1.
As seen from Figure 1, the Hot Tack strength of polyethylene film reaches most at 130 DEG C in embodiment 1-3 and comparative example 1-4
Height, but the Hot Tack strength in embodiment 1-3 is more than the Hot Tack strength in comparative example 1-4.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that being led for this technology
For the those of ordinary skill in domain, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. one kind being packed for polyethylene film automatically, it is characterised in that：Including outer layer, middle layer and the internal layer overlapped successively；
The outer layer by following parts by weight material composition：20-40 parts of melting means are 1.9g/10min, density 0.924g/cm3's
LDPE, 30-50 parts of melting means are 0.9g/10min, density 0.92g/cm3LLDPE, 20-40 part melting means be 1.1g/10min,
Density is 0.920g/cm3LLDPE and 3-5 parts of emulsifier；
The middle layer by following parts by weight material composition：10-30 parts of melting means are 1.9g/10min, density 0.925g/cm3
LDPE, 30-50 part melting means be 1.1g/10min, density 0.920g/cm3LLDPE, 30-50 part melting means be 2.4g/
10min, density 0.921g/cm3The emulsifier of LLDPE, 7-9 part, 5-15 parts of density be 1.47g/cm3Polyether-ether-ketone,
The white masterbatch of 10-14 parts of polyethylene；
The internal layer by following parts by weight material composition：10-30 parts of melting means are 1.9g/10min, density 0.925g/cm3's
LDPE, 30-50 parts of melting means are 1.0g/10min, density 0.92g/cm3M-LLDPE, 10-30 parts of LLDPE, 10-30 part it is poly-
Carbonic ester, 2-2.8 part opening agent, 1-1.4 parts of slipping agents, 2-6 parts of emulsifiers.
2. according to claim 1 be packed for polyethylene film automatically, it is characterised in that：Including overlap successively outer layer,
Middle layer and internal layer；
The outer layer by following parts by weight material composition：30 parts of melting means are 1.9g/10min, density 0.924g/cm3's
LDPE, 40 parts of melting means are 0.9g/10min, density 0.92g/cm3LLDPE, 30 parts of melting means be 1.1g/10min, density is
0.920g/cm3LLDPE and 4 part of emulsifier；
The middle layer by following parts by weight material composition：20 parts of melting means are 1.9g/10min, density 0.925g/cm3's
LDPE, 40 parts of melting means are 1.1g/10min, density 0.920g/cm3LLDPE, 40 parts of melting means be 2.4g/10min, density is
0.921g/cm3LLDPE, 8 parts of emulsifier, 10 parts of density be 1.47g/cm3Polyether-ether-ketone, 12 parts of polyethylene is with white female
Material；
The internal layer by following parts by weight material composition：20 parts of melting means are 1.9g/10min, density 0.925g/cm3's
LDPE, 40 parts of melting means are 1.0g/10min, density 0.92g/cm3LLDPE, 20 parts of m-LLDPE, 20 parts of makrolon, 2.6
Part opening agent, 1.2 parts of slipping agents, 4 parts of emulsifiers.
3. being packed for polyethylene film automatically according to claim 1-2 any one of them, it is characterised in that：The opening agent is
Refer to silica, the grain size of silica is 4-5 μm.
4. being packed for polyethylene film automatically according to claim 1-2 any one of them, it is characterised in that：The outer layer, in
The layer thickness ratio of interbed and internal layer is 3:4:3.
5. being packed for polyethylene film automatically according to claim 1-2 any one of them, it is characterised in that：The slipping agent is
High-purity oleamide.
6. a kind of automatic preparation method for being packed for polyethylene film as described in any one in claim 1-5, it is characterised in that：
Include the following steps：(1) it heats up：It is heated up to three-layer co-extruded blow moulding machine by the way of subregion continuous warming, always when heating
Between be 180-220min, final temperature reach internal layer host temperature be 170-200 DEG C, middle layer host temperature is 170-200 DEG C,
Outer layer host temperature is 170-205 DEG C, die head temperature is 220-230 DEG C；
(2) dispensing：The dispensing of internal layer, surface layer and middle layer is respectively put into three-layer co-extruded blown film unit according to formula and is spat
Material, layer thickness ratio are set as internal layer:Middle layer:Surface layer=3:4:3；
(3) it is switched on：Power-up sequence is outer layer host, middle layer host, internal layer host, is spaced 1-2 minutes sequences and is switched on, three layers of master
Machine preferably must be held in 30-60 revs/min when being switched on；
(4) melting extrusion：The mixed material that cooperation is completed is placed in host, the temperature of melting is controlled at 140-250 DEG C, three
The revolution of layer host is at 40-150 revs/min；
(5) draw film：By rotary pneumatic axis air-cooler FREQUENCY CONTROL in 10Hz-60Hz, it is pulled up and mediates colloidal sol rapidly, ensure to lead
Draw the 30-40m/min of speed, and compressed air is poured to die head inflating port, control blow-up ratio is between 1.5-3.5, with advance
The traction rope of placement is by film bubble average rate pull-up；
(6) splitting winding：Film bubble is entered into corona machine through deflector roll, enters wind-up roll machine by correction intermediate plate later, cuts into two
Piece is simultaneously wound with refill；
(7) it shuts down：Corona electromechanical source is closed, host power switch is closed.
7. the automatic preparation method for being packed for polyethylene film according to claim 6, it is characterised in that：The step
(1) the three-layer co-extruded Blown-film line that heating is completed in needs to be switched on again after keeping the temperature 20-30min.
8. the automatic preparation method for being packed for polyethylene film according to claim 6, it is characterised in that：The step
(3) each layer strainer is needed replacing before booting, highly necessary opens wind turbine, cleans the die lip of mouth mold.
9. the automatic preparation method for being packed for polyethylene film according to claim 6, it is characterised in that：The step
(4) main-machine screw uses two-flight screw in, and the draw ratio of screw rod is 30:1, circulating water temperature control system is had additional on host
System and measurement charging device.
10. the automatic preparation method for being packed for polyethylene film according to claim 6, it is characterised in that：The step
(4) in squeeze out when adjusting device the thickness uniformity, make limit deviation be ± 6%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810666352.9A CN108773137B (en) | 2018-06-25 | 2018-06-25 | Automatically it is packed for polyethylene film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810666352.9A CN108773137B (en) | 2018-06-25 | 2018-06-25 | Automatically it is packed for polyethylene film and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108773137A true CN108773137A (en) | 2018-11-09 |
| CN108773137B CN108773137B (en) | 2019-10-15 |
Family
ID=64025451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810666352.9A Active CN108773137B (en) | 2018-06-25 | 2018-06-25 | Automatically it is packed for polyethylene film and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108773137B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109897275A (en) * | 2019-03-22 | 2019-06-18 | 福建凯达集团有限公司 | High-strength abrasion-proof packaging film and preparation method thereof |
| CN111057305A (en) * | 2019-12-17 | 2020-04-24 | 睿欧启富(苏州)包装科技有限公司 | High-beam heat-shrinkable film material and manufacturing process thereof |
| CN111825908A (en) * | 2020-06-04 | 2020-10-27 | 江门普立菲新材料有限公司 | Modified film for hot melt adhesive packaging and preparation method thereof |
| CN112208178A (en) * | 2020-10-27 | 2021-01-12 | 河北方大包装股份有限公司 | Polyolefin film for express bubble bag and preparation method thereof |
| CN112238662A (en) * | 2019-07-17 | 2021-01-19 | 丹阳市春晓塑业有限公司 | Transparent composite film layer and film blowing method thereof |
| CN112959776A (en) * | 2021-04-08 | 2021-06-15 | 珠海市德燊环保包装有限公司 | Packaging film, preparation method and packaging bag |
| CN113561598A (en) * | 2021-06-17 | 2021-10-29 | 浙江鼎乾薄膜股份有限公司 | High-performance composite film for packaging and preparation method thereof |
| CN114030258A (en) * | 2021-11-18 | 2022-02-11 | 青岛东海包装产业有限公司 | Ultralow-strength easy-tear PE film and preparation process thereof |
| CN115556449A (en) * | 2022-09-15 | 2023-01-03 | 常州琦罡新材料有限公司 | Enhanced liquid packaging composite film |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475074A (en) * | 2009-01-22 | 2009-07-08 | 黄山永佳（集团）有限公司 | Self-lubricating polyethylene membrane |
-
2018
- 2018-06-25 CN CN201810666352.9A patent/CN108773137B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475074A (en) * | 2009-01-22 | 2009-07-08 | 黄山永佳（集团）有限公司 | Self-lubricating polyethylene membrane |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109897275A (en) * | 2019-03-22 | 2019-06-18 | 福建凯达集团有限公司 | High-strength abrasion-proof packaging film and preparation method thereof |
| CN112238662A (en) * | 2019-07-17 | 2021-01-19 | 丹阳市春晓塑业有限公司 | Transparent composite film layer and film blowing method thereof |
| CN111057305A (en) * | 2019-12-17 | 2020-04-24 | 睿欧启富(苏州)包装科技有限公司 | High-beam heat-shrinkable film material and manufacturing process thereof |
| CN111825908A (en) * | 2020-06-04 | 2020-10-27 | 江门普立菲新材料有限公司 | Modified film for hot melt adhesive packaging and preparation method thereof |
| CN111825908B (en) * | 2020-06-04 | 2022-07-29 | 江门普立菲新材料有限公司 | Modified film for hot melt adhesive packaging and preparation method thereof |
| CN112208178A (en) * | 2020-10-27 | 2021-01-12 | 河北方大包装股份有限公司 | Polyolefin film for express bubble bag and preparation method thereof |
| CN112959776A (en) * | 2021-04-08 | 2021-06-15 | 珠海市德燊环保包装有限公司 | Packaging film, preparation method and packaging bag |
| CN112959776B (en) * | 2021-04-08 | 2022-10-25 | 珠海市德燊环保包装有限公司 | Packaging film, preparation method and packaging bag |
| CN113561598A (en) * | 2021-06-17 | 2021-10-29 | 浙江鼎乾薄膜股份有限公司 | High-performance composite film for packaging and preparation method thereof |
| CN114030258A (en) * | 2021-11-18 | 2022-02-11 | 青岛东海包装产业有限公司 | Ultralow-strength easy-tear PE film and preparation process thereof |
| CN114030258B (en) * | 2021-11-18 | 2024-02-06 | 青岛东海包装产业有限公司 | Ultralow-strength easy-to-tear PE film and preparation process thereof |
| CN115556449A (en) * | 2022-09-15 | 2023-01-03 | 常州琦罡新材料有限公司 | Enhanced liquid packaging composite film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108773137B (en) | 2019-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108773137B (en) | Automatically it is packed for polyethylene film and preparation method thereof | |
| CN108790339B (en) | Double-layer polyethylene printing compound film | |
| CA2677899C (en) | Stretched laminated film and bag | |
| CN108995336B (en) | Print compound polyethylene film and preparation method thereof | |
| CN110466225A (en) | A kind of CPE heat-sealing composite membrane and preparation method thereof | |
| CN102344008B (en) | Integrated process for producing paper-plastic compound bags by recycling waste plastics | |
| CN103182821B (en) | A kind of modified polyamide laminated film and preparation method thereof | |
| CN108189506A (en) | PE films and preparation method thereof are easily taken off in heat-sealing repeatedly | |
| CN110733218A (en) | polyethylene film with high puncture strength and preparation method thereof | |
| CN108129736A (en) | High temperature resistant PE films and preparation method thereof and the packaging bag for including high temperature resistant PE films | |
| CN108248164A (en) | A kind of drinking water Multilayer co-extrusion packaging bag film and its production method | |
| CN109397778A (en) | A kind of multi-layer co-extruded functional package film of high-barrier with UVResistant effect | |
| CN108016013A (en) | One kind easily takes off stretched multi-layer coextrusion casting film and its production method | |
| CN101942133A (en) | Polyethylene film and laminated film with even heat-seal strength | |
| CN107082927A (en) | A kind of macromolecule member material and its preparation method and application | |
| CN105172291B (en) | Polyethylene film with easy straight-line tearing and preparation method for polyethylene film | |
| CN113910729B (en) | High-heat-seal-strength biaxially oriented polypropylene high-barrier coating film and preparation method thereof | |
| CN104972720B (en) | Layer structure synthetic paper and preparation method thereof | |
| CN105034511B (en) | Environment-friendly vacuum compressed bags and production process thereof | |
| CN114311906B (en) | Polyethylene composite packaging bag and processing technology thereof | |
| DE202011050984U1 (en) | Peelable multi-layer composite film with reclosability | |
| CN113427839A (en) | Composite film bag and preparation method thereof | |
| CN207375990U (en) | A kind of novel environment friendly pre-coating film | |
| CN105563987B (en) | Packaging bag film of a kind of tear-proof and preparation method thereof and packaging bag | |
| JP6342102B2 (en) | Method for producing molded product with wrinkle pattern and molded product with wrinkle pattern formed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |