CN107498965A - A kind of super-thin low-voltage thermoplastic film and its preparation technology - Google Patents
A kind of super-thin low-voltage thermoplastic film and its preparation technology Download PDFInfo
- Publication number
- CN107498965A CN107498965A CN201710548997.8A CN201710548997A CN107498965A CN 107498965 A CN107498965 A CN 107498965A CN 201710548997 A CN201710548997 A CN 201710548997A CN 107498965 A CN107498965 A CN 107498965A
- Authority
- CN
- China
- Prior art keywords
- low
- heat shrinkage
- layer
- super
- shrinkage film
- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—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
-
- 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
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/05—5 or more layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- 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
-
- 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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The present invention is a kind of super-thin low-voltage thermoplastic film and its preparation technology, belongs to thermoplastic technical field of membrane.A kind of super-thin low-voltage heat shrinkage film, it is made up of count by weight percentage 45 60% low-pressure polyethylenes, the special polyethylene of 30 40% heat shrinkage films, 10 15% color masterbatch and auxiliary material.The present invention provides the super-thin low-voltage heat shrinkage film that a kind of cost is low, puncture resistance is good.The present invention uses low-pressure polyethylene to produce heat shrink films as major ingredient (dosage is 45 60%), using specified weight than low-pressure polyethylene and the special polyethylene of heat shrinkage film and color masterbatch and auxiliary material, solves the defects of low-pressure polyethylene pliability is poor, shrinkage difference can not be used as major ingredient to be used to produce heat shrink films, it is used for the production of heat shrink films using low-pressure polyethylene as major ingredient, and is not easy to be stained with knife in production process.
Description
Technical field
The present invention relates to thermoplastic technical field of membrane, and in particular to a kind of super-thin low-voltage thermoplastic film and its preparation technology.
Background technology
Heat-shrinkable film (abbreviation shrink film) is using the Process blow molding of hurried cooling and shaping, the production of this quenching
Technique is designed according to high polymer orientation principle, and after resin is extruded into embryophoric membrane by complete plasticizing, polymer is in vitrifying temperature
Pressure stretching is carried out along two directions in length and breadth between degree and glutinous stream temperature, the strand of polymer is orientated along draw direction, at this moment
By the hurried cooling of film, stretching is orientated caused strain " freezing ".When film is reheated to " defrosting " temperature, just
Stress relaxation can be produced, that is, disorientation occurs for oriented strand, now, is forced the drawing chain for tense situation,
The folded chain of relaxed state before being orientated then is returned to, therefore assigns shrink film good shrinkage.Especially in packaging industry,
Shrink film with its it is of high quality and at a reasonable price the characteristics of, substituting other packaging materials.
Polyethylene is formed by vinyl polymerization, is divided into high density polyethylene (HDPE), medium density polyethylene and low according to the difference of density
Density polyethylene.Low density polyethylene (LDPE) is softer, multipurpose high-pressure polymerization, also known as polyethylene from high pressure process；High density polyethylene (HDPE) has firm
Property, hardness and the slight big characteristic of machinery, use low-pressure polymerization, also known as low-pressure polyethylene.High density polyethylene (HDPE), which can be done, to be held
Device, pipeline, the electrically insulating material of high frequency can also be done.
Existing heat shrink films use the special polyethylene of heat shrinkage film (LD163), polyethylene from high pressure process and linear low density polyethylene
Prepared by alkene, low-pressure polyethylene is because rigidity is stronger, and those skilled in the art are typically as the auxiliary material for improving pyrocondensation film properties
Use, a kind of anti-high impact forces polyethylene heat-shrinkage film is forced down using metallocene PE, height as disclosed in CN104859948A
As intermediate layer, the dosage of low-pressure polyethylene is 10-30% for density polyethylene and low-pressure polyethylene.Find no document report
Low-pressure polyethylene as production heat shrink films major ingredient use, and on the operation instructions and pertinent literature of low-pressure polyethylene also from
Undeclared low-pressure polyethylene can be used as major ingredient production heat shrink films.It is higher production cost to be present in existing polyethylene heat-shrinkage film,
The problem of puncture resistance is relatively poor.
The content of the invention
In order to solve the problems, such as that polyethylene heat-shrinkage film of the prior art has cost height, puncture resistance difference, the present invention
The super-thin low-voltage heat shrinkage film that a kind of cost is low, puncture resistance is good is provided.
The technical scheme for realizing the object of the invention is：
A kind of super-thin low-voltage heat shrinkage film, count by weight percentage by 45-60% low-pressure polyethylenes, 30-40% heat shrinkage films
Special polyethylene, 10-15% color masterbatch and auxiliary material composition.
Preferably, a kind of super-thin low-voltage heat shrinkage film, count by weight percentage by 55% low-pressure polyethylene, 35% heat shrinkage film
Special polyethylene, 10% color masterbatch and auxiliary material composition.
Preferably, the super-thin low-voltage heat shrinkage film is formed by three-layer co-extruded or five-layer co-squeezing.
The three-layer co-extruded super-thin low-voltage heat shrinkage film includes outer layer, intermediate layer and internal layer, is calculated by percentage thickness, outside
Layer：Intermediate layer：The thickness ratio of internal layer is 25-35%：35-45%：25-35%.
Preferably, the three-layer co-extruded super-thin low-voltage heat shrinkage film includes outer layer, intermediate layer and internal layer, based on percentage thickness
Calculate, outer layer：Intermediate layer：The thickness ratio of internal layer is 30%：40%：30%.
Three-layer co-extruded each thickness degree and weight are not had to and different according to use, use environment, using season,
Adjusted as needed in the range of the thickness and part by weight of the present invention, can reach the effect of the present invention.
The three-layer co-extruded super-thin low-voltage heat shrinkage film outer layer count by weight percentage is by low-pressure polyethylene 70%, heat shrinkage film
Color masterbatch and the auxiliary material composition of special polyethylene 20% and 10%；Intermediate layer is special poly- by the heat shrinkage film of 55% low-pressure polyethylene 35%
Ethene and 10% color masterbatch and auxiliary material composition；Internal layer by low-pressure polyethylene 40% and 40% the special polyethylene of heat shrinkage film film,
20% color masterbatch and auxiliary material composition.
The five-layer co-squeezing super-thin low-voltage heat shrinkage film includes outer layer, secondary outer layer, intermediate layer, secondary internal layer and internal layer, by thickness
Percentage calculates, outer layer：Secondary outer layer：Intermediate layer：Secondary internal layer：The thickness ratio of internal layer is:15-25%：10-20%：25-35%：
10-20%：15-25%.
Preferably, the five-layer co-squeezing super-thin low-voltage heat shrinkage film includes outer layer, secondary outer layer, intermediate layer, secondary internal layer and internal layer,
Calculated by percentage thickness, outer layer：Secondary outer layer：Intermediate layer：Secondary internal layer：The thickness ratio of internal layer is:20%：15%：30%：
15%：20%.
Each thickness degree and weight of the five-layer co-squeezing are not had to and different according to use, use environment, using season,
Adjusted as needed in the range of the thickness and part by weight of the present invention, can reach the effect of the present invention.
The five-layer co-squeezing super-thin low-voltage heat shrinkage film outer layer count by weight percentage is by low-pressure polyethylene 70%, heat shrinkage film
Color masterbatch and the auxiliary material composition of special polyethylene 20% and 10%；Secondary outer layer, secondary internal layer and intermediate layer are by 55% low-pressure polyethylene
The special polyethylene of 35% heat shrinkage film and 10% color masterbatch and auxiliary material composition；Internal layer by low-pressure polyethylene 40% and 40% pyrocondensation
The special polyethylene of film film, 20% color masterbatch and auxiliary material composition.
The color masterbatch includes brightening one or more in blast color masterbatch, antibacterial masterbatch, milky white color masterbatch and smooth color masterbatch etc.
Feature Masterbatch.
The auxiliary material includes polyethylene antistatic master batch and/or antiseptic.
A kind of super-thin low-voltage heat shrinkage film of the present invention, its preparation method are：Raw material is mixed by above-mentioned formula, is heated to 200-
220 DEG C of extrusions, according to 1:3-7 ratio inflation, cooling and shaping, finally winding are put in storage.
Preferably, heating-up temperature is 210 DEG C.
Preferably, inflation ratio is 1:5.
Beneficial effects of the present invention are：
1st, the present invention uses low-pressure polyethylene to produce heat shrink films as major ingredient (dosage 45-60%), using specific heavy
Measure ratio low-pressure polyethylene and the special polyethylene of heat shrinkage film and color masterbatch and auxiliary material, solve low-pressure polyethylene pliability it is poor, receipts
The defects of contracting difference can not be used as major ingredient to be used to produce heat shrink films, it is used for heat shrink films using low-pressure polyethylene as major ingredient
Production, and be not easy to be stained with knife in production process, overcome the technology prejudice of those skilled in the art for a long time.
2nd, the present invention is good as heat shrinkage film anti-puncture ability prepared by major ingredient production using low-pressure polyethylene, compared with same thickness
Other heat shrink films anti-puncture abilities improve 25%.
3rd, the present invention is using low-pressure polyethylene as major ingredient, and the heat shrinkage film for producing to obtain is thinner, the raw material energy of identical cost
Enough production obtains more heat shrinkage films, rises this so as to reduce production, the production cost for solving heat shrinkage film in the prior art is high
The problem of.
4th, the more existing heat shrinkage film pliability of heat shrinkage film that the present invention is prepared by the way of three-layer co-extruded or five-layer co-squeezing
More preferably, moisture resistance is good.
5th, the heat shrink films that the present invention is prepared are obtained as drawn a conclusion according to the use opinion of user：The heat of the present invention
Contracting film production cost reduces by 20% compared with like product in industry, seals effect and contractive effect is good, and broken rate reduces
15%.
Embodiment
Further technology explanation is carried out to technical scheme below.Explanation is the solution to present inventive concept below
Release, be not used in and limit the scope of the invention.
Embodiment 1
A kind of super-thin low-voltage heat shrinkage film, it is special poly- by 50% low-pressure polyethylene, 37% heat shrinkage film count by weight percentage
Ethene, 13% antibacterial masterbatch and antistatic master batch composition.
Raw material is mixed by above-mentioned formula, 200 DEG C of extrusions are heated to, according to 1:4 ratio inflation, cooling and shaping, finally
Winding storage.
Embodiment 2
A kind of super-thin low-voltage heat shrinkage film, it is special poly- by 45% low-pressure polyethylene, 40% heat shrinkage film count by weight percentage
Ethene, 15% color masterbatch and antistatic master batch composition.
Raw material is mixed by above-mentioned formula, 210 DEG C of extrusions are heated to, according to 1:3 ratio inflation, cooling and shaping, finally
Winding storage.
Embodiment 3
A kind of super-thin low-voltage heat shrinkage film, it is special poly- by 60% low-pressure polyethylene, 30% heat shrinkage film count by weight percentage
Ethene, 10% brighten blast color masterbatch and antiseptic composition.
Raw material is mixed by above-mentioned formula, 220 DEG C of extrusions are heated to, according to 1:7 ratio inflation, cooling and shaping, finally
Winding storage.
Embodiment 4
A kind of super-thin low-voltage heat shrinkage film, it is special poly- by 55% low-pressure polyethylene, 35% heat shrinkage film count by weight percentage
Ethene, 10% milky white color masterbatch and antistatic master batch composition.
Raw material is mixed by above-mentioned formula, 210 DEG C of extrusions are heated to, according to 1:5 ratio inflation, cooling and shaping, finally
Winding storage.
Embodiment 5
Super-thin low-voltage heat shrinkage film is formed by three-layer co-extruded, respectively including outer layer, intermediate layer and internal layer, by weight percentage
Outer layer is calculated to be made up of low-pressure polyethylene 70%, the color masterbatch of the special polyethylene 20% and 10% of heat shrinkage film and auxiliary material；Intermediate layer by
The special polyethylene of the heat shrinkage film of 55% low-pressure polyethylene 35% and 10% color masterbatch and auxiliary material composition；Internal layer is by low-pressure polyethylene
The 40% and 40% special polyethylene of heat shrinkage film film, 20% color masterbatch and auxiliary material composition.Calculated by percentage thickness, outer layer：It is middle
Layer：The thickness ratio of internal layer is 30%：40%：30%.
Raw material is mixed by above-mentioned formula, is put into main frame and is heated to 220 DEG C of extrusions, according to 1:5.5 ratio inflation, it is cold
But shape, then carry out traction stretching, cut, finally winding storage.
Embodiment 6
Super-thin low-voltage heat shrinkage film is formed by three-layer co-extruded, respectively including outer layer, intermediate layer and internal layer, by weight percentage
Outer layer is calculated to be made up of low-pressure polyethylene 60%, the color masterbatch of the special polyethylene 30% and 10% of heat shrinkage film and auxiliary material；Intermediate layer by
The special polyethylene of the heat shrinkage film of 50% low-pressure polyethylene 37% and 13% color masterbatch and auxiliary material composition；Internal layer is by low-pressure polyethylene
The 45% and 35% special polyethylene of heat shrinkage film film, 20% color masterbatch and auxiliary material composition.Calculated by percentage thickness, outer layer：It is middle
Layer：The thickness ratio of internal layer is 25%：45%：30%.
Raw material is mixed by above-mentioned formula, is put into main frame and is heated to 200 DEG C of extrusions, according to 1:4 ratio inflation, cooling
Sizing, then traction stretching is carried out, cut, finally winding storage.
Embodiment 7
Super-thin low-voltage heat shrinkage film is formed by three-layer co-extruded, respectively including outer layer, intermediate layer and internal layer, by weight percentage
Outer layer is calculated to be made up of low-pressure polyethylene 80%, the color masterbatch of the special polyethylene 15% and 5% of heat shrinkage film and auxiliary material；Intermediate layer by
The special polyethylene of the heat shrinkage film of 45% low-pressure polyethylene 40% and 15% color masterbatch and auxiliary material composition；Internal layer is by low-pressure polyethylene
The 35% and 45% special polyethylene of heat shrinkage film film, 20% color masterbatch and auxiliary material composition.Calculated by percentage thickness, outer layer：It is middle
Layer：The thickness ratio of internal layer is 30%：35%：35%.
Raw material is mixed by above-mentioned formula, is put into main frame and is heated to 210 DEG C of extrusions, according to 1:7 ratio inflation, cooling
Sizing, then traction stretching is carried out, cut, finally winding storage.
Embodiment 8
Super-thin low-voltage heat shrinkage film is formed by three-layer co-extruded, respectively including outer layer, intermediate layer and internal layer, by weight percentage
Outer layer 1 is calculated to be made up of low-pressure polyethylene 75%, the color masterbatch of the special polyethylene 20% and 5% of heat shrinkage film and auxiliary material；Intermediate layer by
The special polyethylene of the heat shrinkage film of 60% low-pressure polyethylene 30% and 10% color masterbatch and auxiliary material composition；Outer layer 2 is by low-pressure polyethylene
The 45% and 45% special polyethylene of heat shrinkage film film, 10% color masterbatch and auxiliary material composition.Calculated by percentage thickness, outer layer：It is middle
Layer：The thickness ratio of internal layer is 35%：40%：25%.
Raw material is mixed by above-mentioned formula, is put into main frame and is heated to 210 DEG C of extrusions, according to 1:6 ratio inflation, cooling
Sizing, then traction stretching is carried out, cut, finally winding storage.
Embodiment 9
The super-thin low-voltage heat shrinkage film is formed by three-layer co-extruded, respectively including outer layer, intermediate layer and internal layer, by weight percentage
It is made up of than calculating outer layer 1 low-pressure polyethylene 70%, the color masterbatch of the special polyethylene 20% and 10% of heat shrinkage film and auxiliary material；It is middle
Layer is made up of the special polyethylene of the heat shrinkage film of 55% low-pressure polyethylene 35% and 10% color masterbatch and auxiliary material；Outer layer 2 is by the poly- second of low pressure
The special polyethylene of heat shrinkage film film of alkene 45% and 45%, 10% color masterbatch and auxiliary material composition.Calculated by percentage thickness, outer layer：In
Interbed：The thickness ratio of internal layer is 30%：40%：30%.
Raw material is mixed by above-mentioned formula, is put into main frame and is heated to 210 DEG C of extrusions, according to 1:5 ratio inflation, cooling
Sizing, then traction stretching is carried out, cut, finally winding storage.
Embodiment 10
The super-thin low-voltage heat shrinkage film is formed by five-layer co-squeezing, respectively including outer layer, secondary outer layer, intermediate layer, secondary internal layer and
Internal layer, count by weight percentage outer layer by low-pressure polyethylene 70%, the special polyethylene 20% and 10% of heat shrinkage film color masterbatch and
Auxiliary material forms；Secondary outer layer, secondary internal layer and intermediate layer are by the heat shrinkage film of 55% low-pressure polyethylene 35% special polyethylene and 10%
Color masterbatch and auxiliary material composition；Internal layer is by the special polyethylene of heat shrinkage film film of low-pressure polyethylene 40% and 40%, 20% color masterbatch and auxiliary material
Composition.Calculated by percentage thickness, outer layer：Secondary outer layer：Intermediate layer：Secondary internal layer：The thickness ratio of internal layer is:20%：15%：
30%：15%：20%.
Raw material is mixed by above-mentioned formula, is put into main frame and is heated to 210 DEG C of extrusions, according to 1:4 ratio inflation, cooling
Sizing, then traction stretching is carried out, cut, finally winding storage.
Embodiment 11
The super-thin low-voltage heat shrinkage film is formed by five-layer co-squeezing, respectively including outer layer, secondary outer layer, intermediate layer, secondary internal layer and
Internal layer, count by weight percentage outer layer by low-pressure polyethylene 60%, the special polyethylene 30% and 10% of heat shrinkage film color masterbatch and
Auxiliary material forms；Secondary outer layer, secondary internal layer and intermediate layer are by the heat shrinkage film of 60% low-pressure polyethylene 35% special polyethylene and 5%
Color masterbatch and auxiliary material composition；Internal layer is by the special polyethylene of heat shrinkage film film of low-pressure polyethylene 35% and 35%, 30% color masterbatch and auxiliary material
Composition.Calculated by percentage thickness, outer layer：Secondary outer layer：Intermediate layer：Secondary internal layer：The thickness ratio of internal layer is:15%：20%：
30%：20%：15%.
Raw material is mixed by above-mentioned formula, is put into main frame and is heated to 220 DEG C of extrusions, according to 1:5 ratio inflation, cooling
Sizing, then traction stretching is carried out, cut, finally winding storage.
Embodiment 12
The super-thin low-voltage heat shrinkage film is formed by five-layer co-squeezing, respectively including outer layer, secondary outer layer, intermediate layer, secondary internal layer and
Internal layer, count by weight percentage outer layer by low-pressure polyethylene 80%, the special polyethylene 15% and 5% of heat shrinkage film color masterbatch and
Auxiliary material forms；Secondary outer layer, secondary internal layer and intermediate layer are by the heat shrinkage film of 50% low-pressure polyethylene 40% special polyethylene and 10%
Color masterbatch and auxiliary material composition；Internal layer is by the special polyethylene of heat shrinkage film film of low-pressure polyethylene 45% and 45%, 10% color masterbatch and auxiliary material
Composition.Calculated by percentage thickness, outer layer：Secondary outer layer：Intermediate layer：Secondary internal layer：The thickness ratio of internal layer is:25%：10%：
30%：10%：25%.
Raw material is mixed by above-mentioned formula, is put into main frame and is heated to 210 DEG C of extrusions, according to 1:7 ratio inflation, cooling
Sizing, then traction stretching is carried out, cut, finally winding storage.
Embodiment 13
The super-thin low-voltage heat shrinkage film is formed by five-layer co-squeezing, respectively including outer layer, secondary outer layer, intermediate layer, secondary internal layer and
Internal layer, count by weight percentage outer layer by low-pressure polyethylene 75%, the special polyethylene 15% and 10% of heat shrinkage film color masterbatch and
Auxiliary material forms；Secondary outer layer, secondary internal layer and intermediate layer are by the heat shrinkage film of 65% low-pressure polyethylene 30% special polyethylene and 5%
Color masterbatch and auxiliary material composition；Internal layer is by the special polyethylene of heat shrinkage film film of low-pressure polyethylene 42% and 45%, 13% color masterbatch and auxiliary material
Composition.Calculated by percentage thickness, outer layer：Secondary outer layer：Intermediate layer：Secondary internal layer：The thickness ratio of internal layer is:20%：12.5%：
35%：12.5%：20%.
Raw material is mixed by above-mentioned formula, is put into main frame and is heated to 210 DEG C of extrusions, according to 1:6 ratio inflation, cooling
Sizing, then traction stretching is carried out, cut, finally winding storage.
Embodiment 14
The super-thin low-voltage heat shrinkage film is formed by five-layer co-squeezing, respectively including outer layer, secondary outer layer, intermediate layer, secondary internal layer and
Internal layer, count by weight percentage outer layer by low-pressure polyethylene 75%, the special polyethylene 15% and 10% of heat shrinkage film color masterbatch and
Auxiliary material forms；Secondary outer layer, secondary internal layer and intermediate layer are by the heat shrinkage film of 65% low-pressure polyethylene 30% special polyethylene and 5%
Color masterbatch and auxiliary material composition；Internal layer is by the special polyethylene of heat shrinkage film film of low-pressure polyethylene 42% and 45%, 13% color masterbatch and auxiliary material
Composition.Calculated by percentage thickness, outer layer：Secondary outer layer：Intermediate layer：Secondary internal layer：The thickness ratio of internal layer is:20%：17.5%：
25%：17.5%：20%.
Raw material is mixed by above-mentioned formula, is put into main frame and is heated to 210 DEG C of extrusions, according to 1:6 ratio inflation, cooling
Sizing, then traction stretching is carried out, cut, finally winding storage.
The heat shrink films thickness that embodiment 1-14 is prepared is below 10 μm, and (120 DEG C × 10s) of percent thermal shrinkage is laterally
18% longitudinal direction 70%, elongation：Laterally 500% longitudinal direction 280%.
The heat shrink films that the present invention is prepared are obtained as drawn a conclusion according to the use opinion of user：The pyrocondensation of the present invention
Film production cost reduces by 20% compared with like product in industry, seals effect and contractive effect is good, and broken rate reduces 15%.
Above-described embodiment is only the specific embodiment of the invention, but is not limited to embodiment, all not depart from structure of the present invention
In the case of think of, equivalent modification and the prior art addition done according to the application are accordingly to be regarded as the technology of the present invention category.
Claims (10)
- A kind of 1. super-thin low-voltage heat shrinkage film, it is characterised in that：Count by weight percentage by 45-60% low-pressure polyethylenes, 30- The special polyethylene of 40% heat shrinkage film, 10-15% color masterbatch and auxiliary material composition.
- A kind of 2. super-thin low-voltage heat shrinkage film according to claim 1, it is characterised in that：Count by weight percentage by 55% Low-pressure polyethylene, the special polyethylene of 35% heat shrinkage film, 10% color masterbatch and auxiliary material composition.
- A kind of 3. super-thin low-voltage heat shrinkage film according to claim 1, it is characterised in that：The super-thin low-voltage heat shrinkage film is by three Layer co-extrusion or five-layer co-squeezing form.
- A kind of 4. super-thin low-voltage heat shrinkage film according to claim 3, it is characterised in that：The three-layer co-extruded super-thin low-voltage heat Contracting film includes outer layer, intermediate layer and internal layer, is calculated by percentage thickness, outer layer：Intermediate layer：The thickness ratio of internal layer is 25-35%： 35-45%：25-35%.
- A kind of 5. super-thin low-voltage heat shrinkage film according to claim 4, it is characterised in that：The three-layer co-extruded super-thin low-voltage heat Contracting film outer layer count by weight percentage is by low-pressure polyethylene 70%, the color masterbatch of the special polyethylene 20% and 10% of heat shrinkage film and auxiliary Material composition；Intermediate layer is made up of the special polyethylene of the heat shrinkage film of 55% low-pressure polyethylene 35% and 10% color masterbatch and auxiliary material；Internal layer By the special polyethylene of heat shrinkage film film of low-pressure polyethylene 40% and 40%, 20% color masterbatch and auxiliary material composition.
- A kind of 6. super-thin low-voltage heat shrinkage film according to claim 3, it is characterised in that：The five-layer co-squeezing super-thin low-voltage heat Contracting film includes outer layer, secondary outer layer, intermediate layer, secondary internal layer and internal layer, is calculated by percentage thickness, outer layer：Secondary outer layer：Intermediate layer： Secondary internal layer：The thickness ratio of internal layer is:15-25%：10-20%：25-35%：10-20%：15-25%.
- A kind of 7. super-thin low-voltage heat shrinkage film according to claim 6, it is characterised in that：The five-layer co-squeezing super-thin low-voltage heat Contracting film outer layer count by weight percentage is by low-pressure polyethylene 70%, the color masterbatch of the special polyethylene 20% and 10% of heat shrinkage film and auxiliary Material composition；Secondary outer layer, secondary internal layer and intermediate layer are by the special polyethylene of the heat shrinkage film of 55% low-pressure polyethylene 35% and 10% color Female and auxiliary material composition；Internal layer is by the special polyethylene of heat shrinkage film film of low-pressure polyethylene 40% and 40%, 20% color masterbatch and auxiliary material group Into.
- A kind of 8. super-thin low-voltage heat shrinkage film according to claim 1-7 any one, it is characterised in that：Its preparation method For：Raw material is mixed by above-mentioned formula, 200-220 DEG C of extrusion is heated to, according to 1:3-7 ratio inflation, cooling and shaping, finally Winding storage.
- A kind of 9. super-thin low-voltage heat shrinkage film according to claim 8, it is characterised in that：The heating-up temperature is to 210 DEG C.
- A kind of 10. super-thin low-voltage heat shrinkage film according to claim 8, it is characterised in that：The inflation ratio is 1:5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710548997.8A CN107498965B (en) | 2017-07-07 | 2017-07-07 | A kind of super-thin low-voltage thermoplastic film and its preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710548997.8A CN107498965B (en) | 2017-07-07 | 2017-07-07 | A kind of super-thin low-voltage thermoplastic film and its preparation process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107498965A true CN107498965A (en) | 2017-12-22 |
| CN107498965B CN107498965B (en) | 2019-03-12 |
Family
ID=60679557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710548997.8A Active CN107498965B (en) | 2017-07-07 | 2017-07-07 | A kind of super-thin low-voltage thermoplastic film and its preparation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107498965B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493605A (en) * | 2018-06-20 | 2018-09-04 | 湖北三江航天江北机械工程有限公司 | The moisture-proof heat shrinkage film forming method of special-shaped antenna house |
| CN114603958A (en) * | 2022-03-09 | 2022-06-10 | 河间市精诚塑业有限公司 | Heat shrinkable film and preparation method thereof |
| CN115709594A (en) * | 2022-10-21 | 2023-02-24 | 罗威 | Moisture-proof packaging bag and formula thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1235174A (en) * | 1998-04-16 | 1999-11-17 | 熊国栋 | Optical- and bio-degradable plastics |
| CN1243662A (en) * | 1999-07-12 | 2000-02-09 | 莒县果品公司 | Micropore plastic film bags used for growth stage of fruits |
| CN102173160A (en) * | 2010-12-29 | 2011-09-07 | 东莞市正新包装制品有限公司 | Heavy-duty thermal shrinkage polyethylene film and preparation method thereof |
| CN102702606A (en) * | 2012-06-25 | 2012-10-03 | 广州市金威龙实业股份有限公司 | Anti-slip shrink film and preparation method thereof |
| CN103264553A (en) * | 2013-04-28 | 2013-08-28 | 无锡市方成彩印包装有限公司 | Shrink package color film and production method thereof |
| CN103980604A (en) * | 2014-05-20 | 2014-08-13 | 广东炜鸿塑料科技有限公司 | Temperature resistant smooth PE film and preparation method thereof |
| CN104311949A (en) * | 2014-10-11 | 2015-01-28 | 中国石油化工股份有限公司 | High-strength polyethylene material for preparing heat shrinkable film, and preparation method of high-strength polyethylene material |
| CN104859948A (en) * | 2015-06-12 | 2015-08-26 | 成都市益诚包装有限公司 | High impact force-resistant polyethylene heat shrink film and film blowing process |
| CN104890334A (en) * | 2015-06-12 | 2015-09-09 | 成都市益诚包装有限公司 | High-temperature-resistant and creep-resistant polyethylene heat shrinkage film and film-blowing process thereof |
| CN106317271A (en) * | 2015-06-19 | 2017-01-11 | 中国石油天然气股份有限公司 | PE shrink film material and preparation method thereof |
-
2017
- 2017-07-07 CN CN201710548997.8A patent/CN107498965B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1235174A (en) * | 1998-04-16 | 1999-11-17 | 熊国栋 | Optical- and bio-degradable plastics |
| CN1243662A (en) * | 1999-07-12 | 2000-02-09 | 莒县果品公司 | Micropore plastic film bags used for growth stage of fruits |
| CN102173160A (en) * | 2010-12-29 | 2011-09-07 | 东莞市正新包装制品有限公司 | Heavy-duty thermal shrinkage polyethylene film and preparation method thereof |
| CN102702606A (en) * | 2012-06-25 | 2012-10-03 | 广州市金威龙实业股份有限公司 | Anti-slip shrink film and preparation method thereof |
| CN103264553A (en) * | 2013-04-28 | 2013-08-28 | 无锡市方成彩印包装有限公司 | Shrink package color film and production method thereof |
| CN103980604A (en) * | 2014-05-20 | 2014-08-13 | 广东炜鸿塑料科技有限公司 | Temperature resistant smooth PE film and preparation method thereof |
| CN104311949A (en) * | 2014-10-11 | 2015-01-28 | 中国石油化工股份有限公司 | High-strength polyethylene material for preparing heat shrinkable film, and preparation method of high-strength polyethylene material |
| CN104859948A (en) * | 2015-06-12 | 2015-08-26 | 成都市益诚包装有限公司 | High impact force-resistant polyethylene heat shrink film and film blowing process |
| CN104890334A (en) * | 2015-06-12 | 2015-09-09 | 成都市益诚包装有限公司 | High-temperature-resistant and creep-resistant polyethylene heat shrinkage film and film-blowing process thereof |
| CN106317271A (en) * | 2015-06-19 | 2017-01-11 | 中国石油天然气股份有限公司 | PE shrink film material and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493605A (en) * | 2018-06-20 | 2018-09-04 | 湖北三江航天江北机械工程有限公司 | The moisture-proof heat shrinkage film forming method of special-shaped antenna house |
| CN114603958A (en) * | 2022-03-09 | 2022-06-10 | 河间市精诚塑业有限公司 | Heat shrinkable film and preparation method thereof |
| CN115709594A (en) * | 2022-10-21 | 2023-02-24 | 罗威 | Moisture-proof packaging bag and formula thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107498965B (en) | 2019-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105555530B (en) | Machine-direction oriented film for label | |
| CN101306593B (en) | Multilayer coextruding pyrocondensation film | |
| CN108608707B (en) | Polyolefin crosslinked heat shrinkable film with shading effect and production process thereof | |
| CN101722700A (en) | Low-haze multi-layer co-extrusion two-way stretching polyamide film and preparation method | |
| JP6283358B2 (en) | Curl-resistant barrier film | |
| CN111703158A (en) | Antibacterial biaxially oriented polyvinyl alcohol film and preparation method thereof | |
| CN107498965B (en) | A kind of super-thin low-voltage thermoplastic film and its preparation process | |
| CN104608443A (en) | Processing technology for heat shrinkable film | |
| CN105328963A (en) | Three-layer co-extrusion preparing method for high-strength, heat-resistant and anti-static BOPP film | |
| CN103009761B (en) | Polyolefin heat-shrinkable film with high shrinking percentage and manufacturing method thereof | |
| CN106626654B (en) | Polyolefin biaxial stretching film and preparation method thereof | |
| CN110303747B (en) | Polyolefin shrink film for ultra-high-speed, high-heat-sealing-performance and high-shrinkage packaging | |
| CN103358560B (en) | A kind of production method of multi-layer co-extruded low-temperature shrink Polyolefin Heat Shrinkable Film | |
| CN112356543A (en) | High-gloss and high-transparency polyethylene cast film and preparation method thereof | |
| CN103753825A (en) | Production method of multilayer co-extruded low-temperature shrinkable polyolefin heat-shrinkable film | |
| CN110229416A (en) | A kind of high intensity uvioresistant buffering pneumatic cushion polyethylene film and preparation method thereof | |
| CN115635750A (en) | Low-temperature-resistant three-layer co-extrusion heavy packaging film | |
| CN106626655B (en) | Polyolefin biaxial tension vermicelli film and preparation method thereof | |
| CN100427299C (en) | Method for producing low temperature high shrinkage polyolefine heat shrinking film and produced film | |
| CN112208178B (en) | Polyolefin film for express bubble bag and preparation method thereof | |
| CN105150648A (en) | Polyethylene/ polypropylene/ polypropylene three-layer co-extrusion upward bowing film and preparation method thereof | |
| JP5599637B2 (en) | Film, sheet, production method thereof, and blister molded product, laminate | |
| CN106626653A (en) | Polyolefin biaxially oriented thin composite film and preparation method thereof | |
| CN101306744A (en) | Thermal contraction bag for packaging cheese | |
| CN105034504A (en) | High-barrier-property multilayer-co-extrusion packaging 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |