CN109263223A - A kind of polypropylene film and preparation method - Google Patents
A kind of polypropylene film and preparation method Download PDFInfo
- Publication number
- CN109263223A CN109263223A CN201810783533.XA CN201810783533A CN109263223A CN 109263223 A CN109263223 A CN 109263223A CN 201810783533 A CN201810783533 A CN 201810783533A CN 109263223 A CN109263223 A CN 109263223A
- Authority
- CN
- China
- Prior art keywords
- layer
- film
- polypropylene resin
- resin layer
- product
- 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.)
- Pending
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
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/02—Deburring or deflashing
-
- 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
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
- B29C55/14—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively
- B29C55/143—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively firstly parallel to the direction of feed and then transversely thereto
-
- 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
- B32B27/32—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
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/21—Anti-static
-
- 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- 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
- B32B2307/70—Other properties
- B32B2307/746—Slipping, anti-blocking, low friction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of polypropylene film and preparation methods, including layer of polyurethane, first polypropylene resin layer, second polypropylene resin layer, enhancement layer and adherent layer, the two sides of the layer of polyurethane pass through bonding agent respectively and are pasted with the first polypropylene resin layer and the second polypropylene resin layer, enhancement layer is equipped on the outside of first polypropylene resin layer and the second polypropylene resin layer, the enhancement layer is made of lubricant layer and antistatic layer, the side of the lubricant layer is provided with antistatic layer, adherent layer is provided on the outside of the enhancement layer, a kind of polypropylene film preparation method, include the following steps: step 1, sorting；Step 2, molding；Step 3, transverse and longitudinal stretch；Step 4, Thickness sensitivity；Step 5, sided corona treatment；The polypropylene film and preparation method, structure is simple, when in use, will not stick together between film, has good toughness and anti-static function, while convenient for preparation, shaping efficiency is high.
Description
Technical field
The present invention relates to polypropylene film technical field, specially a kind of polypropylene film and preparation method.
Background technique
Polypropylene film will be plastic products made of a kind of macromolecule polypropylene, be widely used in food packaging, doctor
Medicine and chemical field.
Polypropylene film in the prior art, structure is single, when in use, easily sticks together between film, leads to film
It is easy to happen breakage, polypropylene film in the prior art, poor toughness, it is easy to be broken, moreover, the antistatic energy of film
Power is weaker, meanwhile, in the preparation, shaping efficiency is slow for polypropylene film in the prior art, therefore, designs a kind of polypropylene film
And preparation method is necessary.
Summary of the invention
The purpose of the present invention is to provide a kind of polypropylene film and preparation methods, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of polypropylene film, including layer of polyurethane, the first polypropylene resin layer, the second polypropylene resin layer, enhancement layer
And adherent layer, the two sides of the layer of polyurethane pass through bonding agent respectively and are pasted with the first polypropylene resin layer and the second polypropylene tree
Rouge layer is equipped with enhancement layer on the outside of first polypropylene resin layer and the second polypropylene resin layer, and the enhancement layer is by moistening
Slip layer and antistatic layer composition, the side of the lubricant layer is provided with antistatic layer, is provided on the outside of the enhancement layer anti-sticking
Layer.
A kind of polypropylene film preparation method, includes the following steps: step 1, sorting；Step 2, molding；Step 3, it is horizontal
Longitudinal stretching；Step 4, Thickness sensitivity；Step 5, sided corona treatment；Step 6, finished product winding；
Wherein in above-mentioned step one, chooses polyurethane particles and acrylic resin particle is primary raw material, then suitably
Choose antifog master batch and lubricant, antistatic agent and antitack agent；
Wherein in above-mentioned step two, polyurethane particles are poured into single-screw extruder extruder, are squeezed by single screw rod
Polyurethane particles are poured into and carry out blown film in mold, layer of polyurethane is made by machine out；Again by acrylic resin particle, antifog master batch,
Lubricant, antistatic agent and anti-freezing dose pour into single screw extrusion machine, by single screw extrusion machine by mixing pour into mold into
Row blown film, is respectively prepared the first polypropylene resin layer and the second polypropylene resin layer, antifog master batch, lubricant, antistatic agent and
Antitack agent is covered on the outside of the first polypropylene resin layer and the second polypropylene resin layer and enhancement layer and adherent layer is respectively prepared, will
First polypropylene resin layer and the second polypropylene resin layer are respectively overlay in the two sides of layer of polyurethane, by pressure shaping roller and cold
But carried out between setting roll it is compound, batch, air knife blowout compressed air pressure effect under, be tightly attached to the cooling and shaping of low temperature
On roll surface, product is obtained；
Wherein in above-mentioned step three, then the heating of the preheated roller of the product that step 2 is obtained relies on draw roll
In multiple rollers rotational speed difference, product longitudinal stretching, the product that longitudinal stretching is crossed it is preheated enter cross directional stretch baking oven, by drawing
Width machine clip clamps the both ends of product, gradually product is extended along track operation, while having hot wind to blow to product, until handle
Product pulls into technique and requires width, obtains film；
Wherein in above-mentioned step four, the film that step 3 is obtained, thickness does not meet the portion of size tolerance requirements
Point cut off, the edge strip of excision is rolling, crush after can directly blend and return system in virgin material；The film that will be obtained after trimming,
Thickness measuring inspection is carried out by beta thickness gauge, until the thickness of film meets the requirements；
Wherein in above-mentioned step five, using high-frequency and high-voltage generator, makes to generate between electrode and treatment tube and uniformly put
Electricity makes the surface of film be acted on by corona and form carbonyl isopolarity group, obtains film product；
Wherein in above-mentioned step six, the film product boundling after sided corona treatment is wound, is stored.
According to the above technical scheme, the lubricant layer is connect with the first polypropylene resin layer and the second polypropylene resin layer,
And antistatic layer is connect with adherent layer.
According to the above technical scheme, the working face working face temperature of the cooling and shaping roller is 15~20 DEG C.
According to the above technical scheme, the gas knife edge clearance is 3mm, and air blowing wind pressure is 0.5MPa.
According to the above technical scheme, the preheating roller tube working face temperature is 130~150 DEG C, the stretching roller work
Face temperature is 145~155 DEG C.
According to the above technical scheme, the preheating temperature of the product is 165~170 DEG C, and draft temperature is 160~170 DEG C,
Setting temperature is 165~175 DEG C.
Compared with prior art, the beneficial effects of the present invention are:
1. adherent layer can be avoided and stick together between film, lubricant layer and the first polypropylene resin layer inside enhancement layer
It is connected with the second polypropylene resin layer, and antistatic layer is connect with adherent layer, can have the function of lubrication and antistatic, first
Polypropylene resin layer and the second polypropylene resin layer are covered on layer of polyurethane two sides, so that layer of polyurethane can be improved the polypropylene
The toughness of film；
2. enabling to film rapid shaping by heat treatment, have the characteristics that quickly to prepare；The film that will be obtained,
The part that its thickness does not meet size tolerance requirements is cut off, the edge strip of excision is rolling, crush after can directly blend new
System is returned in material, film can be recycled, be advantageously reduced the waste of raw material；Using high-frequency and high-voltage generator, make electricity
Uniform Discharge is generated between pole and treatment tube, so that the surface of film is acted on by corona and is formed carbonyl isopolarity group, is obtained
Film product is conducive to improve film surface wetting tension.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the structural schematic diagram of enhancement layer of the invention；
Fig. 3 is overall flow figure of the invention；
Figure label: 1, layer of polyurethane；2, the first polypropylene resin layer；3, the second polypropylene resin layer；4, enhancement layer；5,
Lubricant layer；6, antistatic layer；7, adherent layer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of polypropylene film referring to FIG. 1-2, including layer of polyurethane 1, the first polypropylene resin layer 2,
Second polypropylene resin layer 3, enhancement layer 4 and adherent layer 7, the two sides of layer of polyurethane 1 pass through bonding agent respectively, and to be pasted with first poly-
The outside of allyl resin layer 2 and the second polypropylene resin layer 3, the first polypropylene resin layer 2 and the second polypropylene resin layer 3 is laid with
There is enhancement layer 4, enhancement layer 4 is made of lubricant layer 5 and antistatic layer 6, and the side of lubricant layer 5 is provided with antistatic layer 6, enhancement layer
4 outside is provided with adherent layer 7.
Refering to Fig. 3, a kind of polypropylene film preparation method includes the following steps: step 1, sorting；Step 2, molding；
Step 3, transverse and longitudinal stretch；Step 4, Thickness sensitivity；Step 5, sided corona treatment；Step 6, finished product winding；
Wherein in above-mentioned step one, chooses polyurethane particles and acrylic resin particle is primary raw material, then suitably
Choose antifog master batch and lubricant, antistatic agent and antitack agent；
Wherein in above-mentioned step two, by polyurethane particles and single-screw extruder extruder is poured into, passes through single screw rod
Polyurethane particles are poured into and carry out blown film in mold by extruder, and layer of polyurethane 1 is made；Again by acrylic resin particle, antifog mother
Grain, lubricant, antistatic agent and anti-freezing dose pour into single screw extrusion machine, are poured into mixing in mold by single screw extrusion machine
Blown film is carried out, is respectively prepared the first polypropylene resin layer 2 and the second polypropylene resin layer 3, it is antifog master batch, lubricant, antistatic
Agent and antitack agent are covered on the first polypropylene resin layer 2 and the outside of the second polypropylene resin layer 3 is respectively prepared enhancement layer 4 and prevents
First polypropylene resin layer 2 and the second polypropylene resin layer 3 are respectively overlay in the two sides of layer of polyurethane 1, pass through pressure by adhesion coating 7
Carried out between power setting roll and cooling and shaping roller it is compound, batch, air knife blowout compressed air pressure effect under, be tightly attached to low
On the cooling and shaping roll surface of temperature, product is obtained；
Wherein in above-mentioned step three, then the heating of the preheated roller of the product that step 2 is obtained relies on draw roll
In multiple rollers rotational speed difference, product longitudinal stretching, the product that longitudinal stretching is crossed it is preheated enter cross directional stretch baking oven, by drawing
Width machine clip clamps the both ends of product, gradually product is extended along track operation, while having hot wind to blow to product, until handle
Product pulls into technique and requires width, obtains film；
Wherein in above-mentioned step four, the film that step 3 is obtained, thickness does not meet the portion of size tolerance requirements
Point cut off, the edge strip of excision is rolling, crush after can directly blend and return system in virgin material；The film that will be obtained after trimming,
Thickness measuring inspection is carried out by beta thickness gauge, until the thickness of film meets the requirements；
Wherein in above-mentioned step five, using high-frequency and high-voltage generator, makes to generate between electrode and treatment tube and uniformly put
Electricity makes the surface of film be acted on by corona and form carbonyl isopolarity group, obtains film product；
Wherein in above-mentioned step six, the film product boundling after sided corona treatment is wound, is stored.
According to the above technical scheme, lubricant layer 5 is connect with the first polypropylene resin layer 2 and the second polypropylene resin layer 3, and
Antistatic layer 6 is connect with adherent layer 7, can have the function of lubrication and antistatic.
According to the above technical scheme, the working face working face temperature of cooling and shaping roller is 15~20 DEG C, is conducive to improve
Cooling and shaping rate.
According to the above technical scheme, gas knife edge clearance is 3mm, and air blowing wind pressure is 0.5MPa, convenient for cooling sizing.
According to the above technical scheme, preheating roller tube working face temperature is 130~150 DEG C, stretches roller working face temperature and is
145~155 DEG C, the surface of product can be heated, convenient for stretching.
According to the above technical scheme, the preheating temperature of product is 165~170 DEG C, and draft temperature is 160~170 DEG C, sizing
Temperature is 165~175 DEG C.
Based on above-mentioned, it is an advantage of the current invention that in the use of the present invention, adherent layer 7 can be avoided occurs between film
Adhesion, the lubricant layer 5 inside enhancement layer 4 are connect with the first polypropylene resin layer 2 and the second polypropylene resin layer 3, and antistatic
Layer 6 is connect with adherent layer 7, can have the function of lubrication and antistatic, the first polypropylene resin layer 2 and the second acrylic resin
Layer 3 is covered on 1 two sides of layer of polyurethane, so that layer of polyurethane 1 can be improved the toughness of the polypropylene film, chooses polyurethane particles
It is primary raw material with acrylic resin particle, then suitably chooses antifog master batch and lubricant, antistatic agent and antitack agent, will gathers
Urethane particle and single-screw extruder extruder is poured into, by single screw extrusion machine by polyurethane particles, pours into mold and carry out
Layer of polyurethane 1 is made in blown film；Acrylic resin particle, antifog master batch, lubricant, antistatic agent and anti-freezing dose are poured into again
Mixing is poured by single screw extrusion machine and carries out blown film in mold by single screw extrusion machine, and the first acrylic resin is respectively prepared
Layer 2 and the second polypropylene resin layer 3, antifog master batch, lubricant, antistatic agent and antitack agent are covered on the first polypropylene resin layer
2 and second the outside of polypropylene resin layer 3 enhancement layer 4 and adherent layer 7 is respectively prepared, by the first polypropylene resin layer 2 and second
Polypropylene resin layer 3 is respectively overlay in the two sides of layer of polyurethane 1, by being answered between pressure shaping roller and cooling and shaping roller
It closes, batch, the working face working face temperature of cooling and shaping roller is 15~20 DEG C, in the compressed air pressure effect of air knife blowout
Under, it is tightly attached on the cooling and shaping roll surface of low temperature, gas knife edge clearance is 3mm, and air blowing wind pressure is 0.5MPa, keeps its cooling fixed
Type obtains product, by the heating of the preheated roller of obtained product, then by the rotational speed difference of multiple rollers in draw roll, system
Product longitudinal stretching, preheating roller tube working face temperature are 130~150 DEG C, and stretching roller working face temperature is 145~155 DEG C, longitudinal
The product stretched is preheated to enter cross directional stretch baking oven, and the preheating temperature of product is 165~170 DEG C, by tenter clip gap handle
The both ends of product clamp, and gradually product is extended along track operation, and draft temperature is 160~170 DEG C, while having hot wind to blow to
Product, setting temperature are 165~175 DEG C, until product, which is pulled into technique, requires width, obtain film, pass through heat treatment, energy
Enough so that film rapid shaping, has the characteristics that quickly to prepare；The film that will be obtained, thickness do not meet size tolerance requirements
Part is cut off, the edge strip of excision is rolling, crush after can directly blend and return system in virgin material, film can be recycled
It utilizes, advantageously reduces the waste of raw material；The film that will be obtained after trimming carries out thickness measuring inspection by beta thickness gauge, until
The thickness of film meets the requirements；Using high-frequency and high-voltage generator, makes to generate Uniform Discharge between electrode and treatment tube, make film
Surface is acted on by corona and forms carbonyl isopolarity group, obtains film product, is conducive to improve film surface wetting tension；
By the film product boundling winding after sided corona treatment, stored.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of polypropylene film, including layer of polyurethane (1), the first polypropylene resin layer (2), the second polypropylene resin layer (3),
Enhancement layer (4) and adherent layer (7), it is characterised in that: the two sides of the layer of polyurethane (1) pass through bonding agent respectively and are pasted with first
Polypropylene resin layer (2) and the second polypropylene resin layer (3), first polypropylene resin layer (2) and the second acrylic resin
It is equipped with enhancement layer (4) on the outside of layer (3), the enhancement layer (4) is made of lubricant layer (5) and antistatic layer (6), the lubrication
The side of layer (5) is provided with antistatic layer (6), is provided with adherent layer (7) on the outside of the enhancement layer (4).
2. a kind of polypropylene film preparation method, includes the following steps: step 1, sorting；Step 2, molding；Step 3, transverse and longitudinal
To stretching；Step 4, Thickness sensitivity；Step 5, sided corona treatment；Step 6, finished product winding；It is characterized by:
Wherein in above-mentioned step one, chooses polyurethane particles and acrylic resin particle is primary raw material, then appropriate selection
Antifog master batch and lubricant, antistatic agent and antitack agent；
Wherein in above-mentioned step two, polyurethane particles are poured into single-screw extruder extruder, pass through single screw extrusion machine
It by polyurethane particles, pours into and carries out blown film in mold, layer of polyurethane (1) is made；Again by acrylic resin particle, antifog master batch,
Lubricant, antistatic agent and anti-freezing dose pour into single screw extrusion machine, by single screw extrusion machine by mixing pour into mold into
Row blown film, is respectively prepared the first polypropylene resin layer (2) and the second polypropylene resin layer (3), antifog master batch, lubricant, resist it is quiet
Electric agent and antitack agent are covered on the outside of the first polypropylene resin layer (2) and the second polypropylene resin layer (3) and reinforcement are respectively prepared
Layer (4) and adherent layer (7), are respectively overlay in layer of polyurethane for the first polypropylene resin layer (2) and the second polypropylene resin layer (3)
(1) two sides, by carried out between pressure shaping roller and cooling and shaping roller it is compound, batch, air knife blowout compressed air pressure
Under power effect, it is tightly attached on the cooling and shaping roll surface of low temperature, obtains product；
Wherein in above-mentioned step three, the heating of the preheated roller of the product that step 2 is obtained, then by more in draw roll
The rotational speed difference of a roller, product longitudinal stretching, the product that longitudinal stretching is crossed is preheated to enter cross directional stretch baking oven, by stenter
Clip clamps the both ends of product, gradually product is extended along track operation, while having hot wind to blow to product, until product
It pulls into technique and requires width, obtain film；
Wherein in above-mentioned step four, the film that step 3 is obtained, thickness do not meet the parts of size tolerance requirements into
Row excision, the edge strip of excision is rolling, crush after can directly blend and return system in virgin material；The film that will be obtained after trimming, by β
Gamma thickness gage carries out thickness measuring inspection, until the thickness of film meets the requirements；
Wherein in above-mentioned step five, using high-frequency and high-voltage generator, makes to generate Uniform Discharge between electrode and treatment tube, make
The surface of film is acted on by corona and forms carbonyl isopolarity group, obtains film product；
Wherein in above-mentioned step six, the film product boundling after sided corona treatment is wound, is stored.
3. a kind of polypropylene film according to claim 1, it is characterised in that: the lubricant layer (5) and the first polypropylene
Resin layer (2) and the second polypropylene resin layer (3) connection, and antistatic layer (6) is connect with adherent layer (7).
4. a kind of polypropylene film preparation method according to claim 2, it is characterised in that: the cooling and shaping roller
Working face working face temperature is 15~20 DEG C.
5. a kind of polypropylene film preparation method according to claim 2, it is characterised in that: the gas knife edge clearance is
3mm, and air blowing wind pressure is 0.5MPa.
6. a kind of polypropylene film preparation method according to claim 2, it is characterised in that: the preheating roller tube working face
Temperature is 130~150 DEG C, and the stretching roller working face temperature is 145~155 DEG C.
7. a kind of polypropylene film preparation method according to claim 2, it is characterised in that: the preheating temperature of the product
It is 165~170 DEG C, draft temperature is 160~170 DEG C, and setting temperature is 165~175 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810783533.XA CN109263223A (en) | 2018-07-17 | 2018-07-17 | A kind of polypropylene film and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810783533.XA CN109263223A (en) | 2018-07-17 | 2018-07-17 | A kind of polypropylene film and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109263223A true CN109263223A (en) | 2019-01-25 |
Family
ID=65148121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810783533.XA Pending CN109263223A (en) | 2018-07-17 | 2018-07-17 | A kind of polypropylene film and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109263223A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157406A (en) * | 2007-10-30 | 2008-04-09 | 中国石化扬子石油化工有限公司 | A packaging elastic contraction film and preparing method |
| CN101302300A (en) * | 2008-01-04 | 2008-11-12 | 上海金浦塑料包装材料有限公司 | Antifog crystal film and preparation thereof |
| CN204451407U (en) * | 2015-03-11 | 2015-07-08 | 青岛思普瑞包装材料有限公司 | A kind of instant noodles packaging film and processing unit (plant) thereof |
| CN106541661A (en) * | 2016-10-27 | 2017-03-29 | 上海若祎新材料科技有限公司 | One kind exempts from corona Biaxially oriented polypropylene packing film and its manufacture method |
| CN107698866A (en) * | 2017-10-13 | 2018-02-16 | 安徽省太湖泽泓塑业有限公司 | Clear anti-fog packaging bag and preparation method thereof |
-
2018
- 2018-07-17 CN CN201810783533.XA patent/CN109263223A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157406A (en) * | 2007-10-30 | 2008-04-09 | 中国石化扬子石油化工有限公司 | A packaging elastic contraction film and preparing method |
| CN101302300A (en) * | 2008-01-04 | 2008-11-12 | 上海金浦塑料包装材料有限公司 | Antifog crystal film and preparation thereof |
| CN204451407U (en) * | 2015-03-11 | 2015-07-08 | 青岛思普瑞包装材料有限公司 | A kind of instant noodles packaging film and processing unit (plant) thereof |
| CN106541661A (en) * | 2016-10-27 | 2017-03-29 | 上海若祎新材料科技有限公司 | One kind exempts from corona Biaxially oriented polypropylene packing film and its manufacture method |
| CN107698866A (en) * | 2017-10-13 | 2018-02-16 | 安徽省太湖泽泓塑业有限公司 | Clear anti-fog packaging bag and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张治国主编: "《塑料高分子溶液成型技术问答》", 31 January 2012, 北京：印刷工业出版社 * |
| 洪定一主编: "《聚丙烯-原理、工艺与技术》", 30 September 2002, 北京：中国石化出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102230448A (en) | Wind power generator blade of bamboo fibre reinforced composite material and manufacture method thereof | |
| CN106891540A (en) | A kind of brush filament constant temperature setting process | |
| CN111331980A (en) | Low-melting-point film, preparation method and application thereof | |
| CN112848422A (en) | Preparation method of biological heat-reducing shrink label film | |
| CN100560336C (en) | A kind of manufacture craft of automobile door and window sealing strip | |
| CN109263223A (en) | A kind of polypropylene film and preparation method | |
| CN105666814A (en) | Preparation method for long ultrathin polyethylene film, film blowing machine and ultrathin polyethylene film | |
| CN103358516B (en) | Single polymer composite product melting coated roller transfer moulding method and equipment | |
| CN106393750A (en) | Integrated forming technology of macromolecular sheet production and gluing | |
| CN109278389A (en) | One kind is exempted to be coated with Biaxially oriented polypropylene cold seal basement membrane and preparation method thereof | |
| CN113146993A (en) | Method for producing stretched label film | |
| CN107627623A (en) | A kind of automobile-used rubbery foam processing technology | |
| CN107877958A (en) | A kind of molding laser BOPET film without silane coupling agent and preparation method thereof | |
| CN107379594A (en) | The process units and its application method on LVT overlay films floor | |
| CN101220181B (en) | Double-layer composite production method for plastic film sheet material on blowfilm machine and equipment thereof | |
| CN208497725U (en) | Equipment is made in a kind of tearing adhesive tape | |
| CN203438522U (en) | Molten coating roll forming device for single polymer composite material product | |
| CN205310849U (en) | Integral type composite honeycomb board former | |
| CN205343747U (en) | Plastic extruder | |
| CN113370486A (en) | Casting production process of degradable film | |
| CN208789124U (en) | The dedicated sheet material of PP+ mountain flour lunch box for environment protection (CT food-grade) extruding production line | |
| JPH0966564A (en) | Preparation of synthetic paper and product thereof | |
| CN204505666U (en) | Online circulation three-roller calendaring device | |
| CN203527849U (en) | Blow-molding system for three-layer coextruded plastic film | |
| CN102582082B (en) | Preparation method of ethylene-vinyl acetate copolymer (EVA) photographic film |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190125 |