CN106883487A - It is a kind of to can be used for the laminated film and its manufacture method of equipment heat-sealing - Google Patents

It is a kind of to can be used for the laminated film and its manufacture method of equipment heat-sealing Download PDF

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Publication number
CN106883487A
CN106883487A CN201710152689.3A CN201710152689A CN106883487A CN 106883487 A CN106883487 A CN 106883487A CN 201710152689 A CN201710152689 A CN 201710152689A CN 106883487 A CN106883487 A CN 106883487A
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parts
laminated film
layer
raw material
silicone
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CN201710152689.3A
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Inventor
吴军政
袁继
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Aux Air Conditioning Co Ltd
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Aux Air Conditioning Co Ltd
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Priority to CN201710152689.3A priority Critical patent/CN106883487A/en
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    • 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
    • C08L23/06—Polyethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92114—Dimensions
    • B29C2948/92152—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
    • C08J2483/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • 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)

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A kind of laminated film that can be used for equipment heat-sealing is provided, it is characterised in that：The laminated film is three-layer extrusion film, and outer layer includes the raw material of following parts by weight：18~21 parts of PN resins, 0.6 1 parts of silicone, 0.1 0.3 parts of antioxidant；Intermediate layer includes the raw material of following parts by weight：52~58 parts of PE resins, 2.2 2.6 parts of silicone, 0.4 0.8 parts of antioxidant；Internal layer includes the raw material of following parts by weight：18~21 parts of POE plastics, 0.6~1 part of silicone, 0.1~0.3 part of antioxidant；The fusing point of outer layer is more than the fusing point of internal layer, the maximum temperature when fusing point of internal layer is sealed more than equipment.This can be used to not crease easily, damage and encapsulate firmly when the laminated film high temperature resistant of equipment heat-sealing, encapsulation.A kind of manufacture method of the above-mentioned laminated film that can be used for equipment heat-sealing is also provided in addition.

Description

It is a kind of to can be used for the laminated film and its manufacture method of equipment heat-sealing
Technical field
Can be used for the laminated film and its manufacture method of equipment heat-sealing the present invention relates to a kind of.
Background technology
Currently used for the appendicle material of packaging household appliances, such as sterilized net, remote controller bracket, specification and guarantee card Deng generally using PE films.When being sealed using equipment, because longitudinal sealing temperature is 90 DEG C, horizontal sealing temperature is 85 to PE films DEG C, temperature higher easily causes to be shrinked into ridges during PE thin-film packages, even damages, if turning down package temperature, cannot encapsulate Firmly.
The content of the invention
The technical problem to be solved in the present invention is：Jail is not creased easily, damages and encapsulates when a kind of high temperature resistant, encapsulation are provided Solid can be used for equipment heat-sealing laminated film.
Technical solution of the invention is：A kind of laminated film that can be used for equipment heat-sealing, it is characterised in that：It is described multiple Conjunction film is three-layer extrusion film, including outer layer, intermediate layer and the internal layer being combined with each other, the outer layer includes following parts by weight Raw material：18~21 parts, silicone 0.6-1 parts, antioxidant 0.1-0.3 parts of PN resins；The intermediate layer includes following parts by weight Raw material：52~58 parts, silicone 2.2-2.6 parts, antioxidant 0.4-0.8 parts of PE resins；The internal layer includes following parts by weight Raw material：18~21 parts of POE plastics, 0.6~1 part of silicone, 0.1~0.3 part of antioxidant；The fusing point of the outer layer is more than internal layer Fusing point, the maximum temperature when fusing point of the internal layer is sealed more than equipment.
After said structure, the present invention has advantages below：
The present invention can be used for the laminated film of equipment heat-sealing, and PN resin outer layers and POE plastics are additionally arranged on PE resin beds Internal layer；Because the fusing point of outer layer and internal layer is all higher than maximum temperature when equipment is sealed, therefore laminated film will not in heat-sealing Shrink into ridges or damage；Secondly, internal layer POE plastics performances more softness, good toughness, adhesion strength is high, tensile strength and tear Intensity is protruded, and puncture-resistant, hence in so that the product after heat-sealing is bonded more firmly, heat sealability is more preferable；Again, with heat-sealing The outer layer PN resin beds of equipment directly contact not only high temperature resistant, and hardness is higher, so as to more be not easy to shrink into ridges or damage It is bad；Finally, using three-layer extrusion film heat sealability more preferably, mechanical strength higher, puncture resistant and tear resistance is stronger, resistance to height Temperature simultaneously can anti-oxidation, waterproof, protection against the tide.
Preferably, the outer layer includes the raw material of following parts by weight：20 parts of PN resins, 0.8 part of silicone, antioxidant 0.2 part；The intermediate layer includes the raw material of following parts by weight：55 parts of PE resins, 2.4 parts of silicone, 0.6 part of antioxidant；It is described Internal layer includes the raw material of following parts by weight：20 parts of POE plastics, 0.8 part of silicone, 0.2 part of antioxidant.This is set to each component Preferred scheme, can be optimal the performance of laminated film.
Preferably, the PE resins in the intermediate layer are LDPE resin.LDPE resin is one kind of PE resins, and performance is soft Various moulding process that are soft, being adapted to thermoplastic molding's processing, molding processibility is good, impact resistance and toughness are preferable.
Another technical problem to be solved by the present invention is that：A kind of high degree of automation, easily manufactured, precision machining is provided Manufacture method for manufacturing the above-mentioned laminated film that can be used for equipment heat-sealing.
Technical solution of the invention is：A kind of manufacture method of the laminated film that can be used for equipment heat-sealing, its feature It is：It is comprised the following steps：
(1) three layers of raw material are configured：Mechanical mixture is carried out by with comparison raw material, is mixed with obtaining outer layer mixed material, intermediate layer Compound material and internal layer mixed material；
(2) automatic blanking：PC control automatic blanking system is entered automatically in the ratio shared by outer layer, intermediate layer, internal layer Row blanking；
(3) fusion plastification：Each layer mixed material enters fusion plastification in respective extruder through hopper, and PC control is squeezed The plasticization temperature gone out in machine is 170 DEG C~220 DEG C；
(4) blow molding：The melt of each layer mixed material is imported into die head by respective runner carries out three layers of bonding And blow molding, the outflow of die lip that process can be adjusted, blow temperatures in PC control extruder die head for 165 DEG C~ 180℃；
(5) cooling and shaping：By the laminated film of die lip outflow to chill roll or vane cooling and shaping, then by PC control Automatic trailer system draws laminated film with the speed for setting；
(6) splitting winding and packaging and storage.
After the above method, the present invention has advantages below：
The manufacture method that the present invention can be used for the laminated film of equipment heat-sealing uses automatic blanking system by three layers of mixture Material is automatically added in each extruder respectively by proportioning, and the process of fusion plastification and blow molding is automatically performed by extruder, and The laminated film after cooling and shaping is drawn by automatic trailer system, above-mentioned automatic blanking system, extruder and automatic traction System is uniformly coordinated by host computer and automatically controlled, whole process high degree of automation, easily manufactured, precision machining, is manufactured Laminated film have high temperature resistant, encapsulation when do not crease easily, damage and encapsulate firm advantage.
Preferably, also by the total thickness of the laminated film after measuring thickness device on-line checking cooling and shaping in step (5) The thickness information of the thickness of degree and each layer, the gross thickness of the laminated film and each layer feeds back to host computer for controlling to squeeze Go out the screw speed of machine and the hauling speed of trailer system.By the gross thickness and the thickness of each layer of on-line checking laminated film Carry out the rotating speed and hauling speed of adjusting bolt, can more be accurately controlled the quality of film forming.
Brief description of the drawings：
Fig. 1 is the structural representation of the laminated film that the present invention can be used for equipment heat-sealing；
In figure of the present invention：1- outer layers, 2- intermediate layers, 3- internal layers.
Specific embodiment
Below in conjunction with the accompanying drawings, and in conjunction with the embodiments the present invention is described further.
Embodiment 1：
As shown in figure 1, a kind of laminated film that can be used for equipment heat-sealing, the laminated film is three-layer extrusion film, including Outer layer 1, intermediate layer 2 and the internal layer 3 being combined with each other, the outer layer 1 include the raw material of following parts by weight：PN resins 18~21 Part, silicone 0.6-1 parts, antioxidant 0.1-0.3 parts；The intermediate layer 2 include 52~58 parts of PE resins, silicone 2.2-2.6 part, resist 0.4-0.8 parts of oxygen agent；The internal layer 3 includes the raw material of following parts by weight：It is 18~21 parts of POE plastics, 0.6~1 part of silicone, anti- 0.1~0.3 part of oxygen agent；PN resins are propylene-ethylene block copolymer；POE materials are ethylene-octene copolymer；The outer layer 1 Fusing point more than internal layer 3 fusing point, the maximum temperature when fusing point of the internal layer 3 is sealed more than equipment.
The present invention can be used for the laminated film of equipment heat-sealing, and PN resin outer layers 1 and POE plastics are additionally arranged on PE resin beds Internal layer 3, due to the fusing point of outer layer 1 and internal layer 3 be all higher than equipment seal when maximum temperature, therefore laminated film heat-sealing when not Can shrink into ridges or damage；Secondly, internal layer 3POE plastics performances more softness, good toughness, adhesion strength is high, tensile strength and tear Resistance to spalling is protruded, and puncture-resistant, hence in so that the product after heat-sealing is bonded more firmly, heat sealability is more preferable；Again, with heat The outer layer 1PN resin beds of envelope equipment directly contact not only high temperature resistant, and hardness is higher, thus be more not easy to shrink into ridges or Damage；Finally, using three-layer extrusion film heat sealability more preferably, mechanical strength higher, puncture resistant and tear resistance is stronger, resistance to height Temperature simultaneously can anti-oxidation, waterproof, protection against the tide.
Preferably, the outer layer 1 includes the raw material of following parts by weight：20 parts of PN resins, 0.8 part of silicone, antioxidant 0.2 part；The intermediate layer 2 includes the raw material of following parts by weight：55 parts of PE resins, 2.4 parts of silicone, 0.6 part of antioxidant；It is described Internal layer 3 includes the raw material of following parts by weight：20 parts of POE plastics, 0.8 part of silicone, 0.2 part of antioxidant.This is set to each component Preferred scheme, can be optimal the performance of laminated film.
Preferably, the PE resins in the intermediate layer 2 are LDPE resin, LDPE is low density polyethylene (LDPE).LDPE resin is One kind of PE resins, performance is soft, be adapted to the various moulding process of thermoplastic molding's processing, and molding processibility is good, shock resistance energy Power and toughness are preferable.
Embodiment 2：
A kind of manufacture method of the laminated film that can be used for equipment heat-sealing, it is characterised in that：It is comprised the following steps：
(1) three layers of raw material are configured：Mechanical mixture is carried out by with comparison raw material, to obtain the mixed material of outer layer 1, intermediate layer 2 Mixed material and the mixed material of internal layer 3, the mixed material of the outer layer 1 include：20 parts of PN resins, 0.8 part of silicone, antioxidant 0.2 Part, the mixed material of the intermediate layer 2 includes：55 parts of LDPE resin, 2.4 parts of silicone, 0.6 part of antioxidant, the mixture of the internal layer 3 Material includes：20 parts of POE plastics, 0.8 part of silicone, 0.2 part of antioxidant；
(2) automatic blanking：PC control automatic blanking system is automatic in the ratio shared by outer layer 1, intermediate layer 2, internal layer 3 Blanking is carried out, the ratio shared by the outer layer 1 isRatio shared by the intermediate layer 2 isRatio shared by the internal layer 3 is
(3) fusion plastification：Each layer mixed material enters fusion plastification in respective extruder through hopper, and PC control is squeezed The plasticization temperature gone out in machine is 170 DEG C~220 DEG C；
(4) blow molding：The melt of each layer mixed material is imported into die head by respective runner carries out three layers of bonding And blow molding, the outflow of die lip that process can be adjusted, blow temperatures in PC control extruder die head for 165 DEG C~ 180℃；
(5) cooling and shaping：By the laminated film of die lip outflow to chill roll or vane cooling and shaping, then by PC control Automatic trailer system draws laminated film with the speed for setting；
(6) splitting winding and packaging and storage.
Above-mentioned host computer, automatic blanking system, extruder, automatic trailer system and host computer to automatic blanking system, The control of extruder and automatic trailer system uses prior art, and above-mentioned automatic control equipment is not in itself hair of the invention Bright, inventive point of the invention is the manufacture method that above-mentioned automatic control equipment is applied to laminated film of the present invention.
The manufacture method that the present invention can be used for the laminated film of equipment heat-sealing uses automatic blanking system by three layers of mixture Material is automatically added in each extruder respectively by proportioning, and the process of fusion plastification and blow molding is automatically performed by extruder, and The laminated film after cooling and shaping is drawn by automatic trailer system, above-mentioned automatic blanking system, extruder and automatic traction System is uniformly coordinated by host computer and automatically controlled, whole process high degree of automation, easily manufactured, precision machining, is manufactured Laminated film have high temperature resistant, encapsulation when do not crease easily, damage and encapsulate firm advantage.
Preferably, also by the total thickness of the laminated film after measuring thickness device on-line checking cooling and shaping in step (5) The thickness information of the thickness of degree and each layer, the gross thickness of the laminated film and each layer feeds back to host computer for controlling to squeeze Go out the screw speed of machine and the hauling speed of trailer system, the measuring thickness device is prior art, for example near infrared technology. By on-line checking to the gross thickness of laminated film and the thickness of each layer come the rotating speed and hauling speed of adjusting bolt, can be more Plus it is accurately controlled the quality of film forming.
The laminated film product cross directional stretch force value >=22N for finally being manufactured with proportioning as stated above, extensibility >= 500%, tensile strength >=30Mpa；Longitudinal stretching force value >=18N, extensibility >=500%, tensile strength >=24Mpa, integrated machine Tool intensity, tensile strength and extensibility are higher；And longitudinal sealing temperature be 90 DEG C, horizontal sealing temperature be 85 DEG C at a high temperature of carry out During heat-sealing, will not wrinkle, damage and encapsulate very firm.

Claims (5)

  1. It is 1. a kind of to can be used for the laminated film that equipment is sealed, it is characterised in that：The laminated film is three-layer extrusion film, including again Outer layer (1), intermediate layer (2) and the internal layer (3) being combined, the raw material of the outer layer (1) including following parts by weight：PN resins 18~21 parts, silicone 0.6-1 parts, antioxidant 0.1-0.3 parts；The raw material of the intermediate layer (2) including following parts by weight：PE trees 52~58 parts, silicone 2.2-2.6 parts, antioxidant 0.4-0.8 parts of fat；The raw material of the internal layer (3) including following parts by weight： 18~21 parts of POE plastics, 0.6~1 part of silicone, 0.1~0.3 part of antioxidant；The fusing point of the outer layer (1) is more than internal layer (3) Fusing point, the maximum temperature when fusing point of the internal layer (3) is sealed more than equipment.
  2. 2. it is according to claim 1 it is a kind of can be used for equipment heat-sealing laminated film, it is characterised in that：The outer layer (1) Raw material including following parts by weight：20 parts of PN resins, 0.8 part of silicone, 0.2 part of antioxidant；The intermediate layer (2) is including following The raw material of parts by weight：55 parts of PE resins, 2.4 parts of silicone, 0.6 part of antioxidant；The internal layer (3) includes following parts by weight Raw material：20 parts of POE plastics, 0.8 part of silicone, 0.2 part of antioxidant.
  3. 3. it is according to claim 1 it is a kind of can be used for equipment heat-sealing laminated film, it is characterised in that：The intermediate layer (2) PE resins are LDPE resin.
  4. 4. it is a kind of can be used for equipment heat-sealing laminated film manufacture method, it is characterised in that：It is comprised the following steps：
    (1) three layers of raw material are configured：Mechanical mixture is carried out by with comparison raw material, to obtain outer layer (1) mixed material, intermediate layer (2) Mixed material and internal layer (3) mixed material；
    (2) automatic blanking：PC control automatic blanking system in the ratio shared by outer layer (1), intermediate layer (2), internal layer (3) from It is dynamic to carry out blanking；
    (3) fusion plastification：Each layer mixed material enters fusion plastification, PC control extruder in respective extruder through hopper Interior plasticization temperature is 170 DEG C~220 DEG C；
    (4) blow molding：The melt of each layer mixed material is imported into die head by respective runner and carries out three layers and bond and blow Type is moulded, the die lip outflow that process can be adjusted, the blow temperatures in PC control extruder die head are 165 DEG C~180 DEG C；
    (5) cooling and shaping：The laminated film flowed out by die lip is to chill roll or vane cooling and shaping then automatic by PC control Trailer system draws laminated film with the speed for setting；
    (6) splitting winding and packaging and storage.
  5. 5. it is according to claim 4 it is a kind of can be used for equipment heat-sealing laminated film manufacture method, it is characterised in that： Also by the gross thickness and the thickness of each layer of the laminated film after measuring thickness device on-line checking cooling and shaping, institute in step (5) The thickness information of the gross thickness and each layer of stating laminated film feeds back to host computer for controlling the screw speed of extruder and leading Draw the hauling speed of system.
CN201710152689.3A 2017-03-15 2017-03-15 It is a kind of to can be used for the laminated film and its manufacture method of equipment heat-sealing Pending CN106883487A (en)

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