CN104369500B - Forage grass film and manufacturing method thereof - Google Patents
Forage grass film and manufacturing method thereof Download PDFInfo
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- CN104369500B CN104369500B CN201410717099.7A CN201410717099A CN104369500B CN 104369500 B CN104369500 B CN 104369500B CN 201410717099 A CN201410717099 A CN 201410717099A CN 104369500 B CN104369500 B CN 104369500B
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- 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
-
- 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
-
- 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
- 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
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- 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
- B32B2307/552—Fatigue strength
-
- 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
- B32B2439/00—Containers; Receptacles
-
- 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—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
- C08J2423/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08J2423/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention relates to a forage grass film and a manufacturing method thereof, in particular to a thin film used for silaging and freshness retaining of forage grass. The forage grass film sequentially comprises at least one composition layer A, at least one composition layer B, at least one composition layer C which are arranged according to a certain sequence. The manufacturing method includes the following steps: A, preparing the layer A, the layer B, the layer C and the layer D according to a raw material ratio relationship; B, adjusting arranging sequence of the layers through a logistics distribution selecting plug of a multifunctional feeding block; C, adjusting layer thickness proportion of the layers through a diversion wing plate and a distribution sheath of the multifunctional feeding block; D, flowing into a coextrusion die head through a melt runner of the multifunctional feeding block; E, forming coextrusion solution flow, and enabling the coextrusion solution flow to flow out from a die lip at constant pressure to form a thin film; F, matting the surface of the thin film through a matting flow extending roller; G, winding through a winder. The forage grass film has the advantages of high self-adhesiveness, extremely excellent penetration resistance, excellent aging resistance, high stretch ratio and the like, is suitable for gathering package of forage grass and can be used for storing the forage grass and playing a role in freshness retaining.
Description
Technical field
The present invention relates to a kind of herbage film and preparation method thereof, especially one kind use thin film as grass silage is fresh-keeping.
Background technology
Low-density herbage film, due to good transparency, heat sealability, and can waterproof, protection against the tide, tensile strength it is low,
The features such as tensile elongation is big, is widely used, and diversified preparation low-density herbage is there is also in prior art
The technique of film, but low-density herbage film of the prior art is not suitable for the fresh-keeping of herbage, there is puncture-resistant poor performance, prevents old
Change poor performance, the defect such as draw ratio is not high, fresh-keeping effect is poor, therefore, research and development one kind is suitable for packing herbage and beneficial to herding
The fresh-keeping herbage film of grass is the difficult problem that one of ordinary skill in the art face.
The content of the invention
Present invention solves the technical problem that being to provide a kind of herbage film, the herbage film has preferable adaptation and stretching
Intensity.
In view of this, the present invention provides a kind of herbage film：Include at least one of which A layer composition, at least one of which B layer group successively
Compound, at least one of which C layer composition by the composition that necessarily puts in order, including between BACAB arrangement architectures, and each layer
Thickness proportion be 1:1:2:1:1.
Preferred scheme for a kind of herbage film include at least one of which A layer composition, at least one of which B layer composition, at least one
Layer C layer compositions by the composition that necessarily puts in order, including BCACB structures, wherein thickness proportion is followed successively by 1:2:1:2:
1。
Further preferred scheme is to include at least one of which A layer composition, at least one of which B layer composition, at least one of which C layer
Compositionss by the composition that necessarily puts in order, including ABBBC structures, wherein thickness proportion is followed successively by 1:1:1:1:2.
Wherein A layers include the metallocene linear-low density polyethylene 82 ~ 90% constituted by mass component, thickening masterbatch 6 ~
10%, anti-aging mother material 4 ~ 8%；
Wherein B layers include the metallocene linear-low density polyethylene 90 added with nano imvite that constitutes by mass component ~
94%, brighten shading masterbatch 6 ~ 10%；
Wherein C layers include the metallocene linear-low density polyethylene 92 ~ 96% constituted by mass component, anti-aging mother material 4 ~
8%。
And the wherein thickening masterbatch of A layers is 60% polybutene and linear low density polyethylene carrier compositions, anti-aging mother material
For the compositionss of light stabilizer, ultraviolet ray adsorbents and linear low density polyethylene carrier；Described B layers brighten shading masterbatch
The compositionss of titanium dioxide and linear low density polyethylene carrier；Described C layers anti-aging mother material is light stabilizer, ultra-violet absorption
Agent and the compositionss of linear low density polyethylene carrier.
The metallocene linear-low density polyethylene added with nano imvite wherein in B layers is by choosing 600 mesh -800
The montmorillonite of mesh specification and metallocene linear-low density polyethylene are prepared from through blending technology.
The present invention also provides a kind of preparation method of above-mentioned herbage film：Comprise the following steps：
A, according to proportioning raw materials relation prepare A layers, B layers, C layers；
B, putting in order by the flow distribution selection plug each layer of adjustment of multi-functional feed block；
C, the thickness ratio that each layer is adjusted by the shunting wing plate of multi-functional feed block and distribution sheath；
D, coextrusion die head is flowed into by the melt flow channel of multi-functional feed block；
E, formation co-extrusion melt flow are simultaneously flowed out from die lip with constant pressure, form thin film；
F, delustring process is carried out to film surface by extinction casting roller；
G, wound by winder.
Wherein step（A）In, A layer proportioning raw materials relations are：Metallocene linear-low density polyethylene 82 ~ 90%, viscosifies masterbatch
6 ~ 10%, anti-aging mother material 4 ~ 8%；The proportion relation of B layer raw materials is：Added with the poly- second of metallocene linear low density of nano imvite
Alkene 90 ~ 94%, brightens shading masterbatch 6 ~ 10%；The proportion relation of C layer raw materials is：Metallocene linear-low density polyethylene 92 ~ 96%,
Anti-aging mother material 4 ~ 8%.
Step（B）Described in multi-functional feed block include that material distribution selects plug, shunting sheath, shunting wing plate and melt flow
Road chamber.
Step（D）In described coextrusion die head be flat shoulder formula single current formula.
Step（G）In winding mode include surface winding, center winding, centre of surface winding.
The present invention provides a kind of herbage film, including at least one of which A layer composition, at least one of which B layer composition, at least one of which
C layer compositions by the composition that necessarily puts in order, wherein A layers proportioning raw materials relation is：Metallocene linear-low density polyethylene 82 ~
90%, viscosify masterbatch 6 ~ 10%, anti-aging mother material 4 ~ 8%；The proportion relation of B layer raw materials is：Added with the metallocene line of nano imvite
Property Low Density Polyethylene 90 ~ 94%, brightens shading masterbatch 6 ~ 10%；The proportion relation of C layer raw materials is：Metallocene linear low density gathers
Ethylene 92 ~ 96%, anti-aging mother material 4 ~ 8%.And add the purpose for viscosifying masterbatch to be to increase the surface of thin film certainly in the feed
Viscosity, to prevent thin film in use due to autohension not enough pine bundle, causes damage.Add the purpose of anti-aging mother material
It is for preventing the aging of thin film, strengthening its weatherability, extend its validity period.It is for dropping that the purpose of shading masterbatch is brightened in addition
The light transmittance of low thin film, is rotted with preventing the herbage in packing from carrying out excessive photosynthesis.Using addition montmorillonite
The purpose of metallocene linear-low density polyethylene be to increase thin film strength.
Beneficial effect：The herbage film of the present invention, is produced by main Raw material processing of metallocene linear-low density polyethylene
A kind of plastic package material, it has autohension strong, and paracentesis resistance can be splendid, and anti ageing property is excellent, draw ratio height etc.
Advantage, is suitable as the assembly package of herbage, can be used to store herbage and play fresh-keeping effect.Which is packed as herbage notable
Feature is：Ton low cost, packaging efficiency are high, and the amount of labour used is few, and effect is very good, greatly reduces the wave of forage nutrition
Take, improve the utilization rate of herbage, the marketing period of domestic animal can be shortened, improve meat quality.
Description of the drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is second structural representation of the present invention.
Fig. 3 is the third structural representation of the present invention.
Wherein：1st, A layers 2, B layers 3, C layers.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is entered with reference to Figure of description and embodiment
Row description, but it is to be understood that these descriptions are simply to further illustrate the features and advantages of the present invention, rather than to the present invention
The restriction of claim.
Embodiment 1
The embodiment of the invention discloses a kind of herbage film, show the knot of the polyethylene film of present invention offer referring to Fig. 1
Structure schematic diagram, which includes successively：B layers, A layers, C layers, A layers, B layers, wherein the ratio of each thickness degree is：1:1:2:1:1, wherein A layers
Including the metallocene linear-low density polyethylene 82 ~ 90% constituted by mass component, masterbatch 6 ~ 10% is viscosified, anti-aging mother material 4 ~
8%；B layers include the metallocene linear-low density polyethylene 90 ~ 94% added with nano imvite constituted by mass component, brighten screening
Light masterbatch 6 ~ 10%；C layers include the metallocene linear-low density polyethylene 92 ~ 96% constituted by mass component, anti-aging mother material 4 ~
8%。
Wherein the thickening masterbatch of A layers is 60% polybutene and linear low density polyethylene carrier compositions, and anti-aging mother material is
The compositionss of light stabilizer, ultraviolet ray adsorbents and linear low density polyethylene carrier；B layers brighten shading masterbatch for titanium dioxide and
The compositionss of linear low density polyethylene carrier；C layers anti-aging mother material is light stabilizer, UV absorbent and linea low density
The compositionss of polyethylene support.And B layers added with nano imvite metallocene linear-low density polyethylene by choose 600 mesh-
The montmorillonite of 800 mesh specifications and metallocene linear-low density polyethylene are prepared from through blending technology.
Wherein preparation method is comprised the following steps：
A, according to proportioning raw materials relation prepare A layers, B layers, C layers；
B, putting in order by the flow distribution selection plug each layer of adjustment of multi-functional feed block；
C, the thickness ratio that each layer is adjusted by the shunting wing plate of multi-functional feed block and distribution sheath；
D, coextrusion die head is flowed into by the melt flow channel of multi-functional feed block；
The molten stream of E, formation co-extrusion is simultaneously flowed out from die lip with constant pressure, forms thin film；
F, delustring process is carried out to film surface by extinction casting roller；
G, wound by winder.
Wherein step（A）In, A layer proportioning raw materials relations are：Metallocene linear-low density polyethylene 82 ~ 90%, viscosifies masterbatch
6 ~ 10%, anti-aging mother material 4 ~ 8%；The proportion relation of B layer raw materials is：Added with the poly- second of metallocene linear low density of nano imvite
Alkene 90 ~ 94%, brightens shading masterbatch 6 ~ 10%；The proportion relation of C layer raw materials is：Metallocene linear-low density polyethylene 92 ~ 96%,
Anti-aging mother material 4 ~ 8%.
Step（B）Described in multi-functional feed block include that material distribution selects plug, shunting sheath, shunting wing plate and melt flow
Road chamber.
Step（D）In described coextrusion die head be flat shoulder formula single current formula.
Step（G）In winding mode include surface winding, center winding, centre of surface winding.
Embodiment 2
The embodiment of the invention discloses a kind of herbage film, show the knot of the polyethylene film of present invention offer referring to Fig. 2
Structure schematic diagram, which includes successively：B layers, C layers, A layers, C layers, B layers, wherein the ratio of each number of plies thickness is：1:2:1:2:1.
Each group distribution ratio is same as Example 1 with preparation method.
Embodiment 3
The embodiment of the invention discloses a kind of herbage film, show the knot of the polyethylene film of present invention offer referring to Fig. 2
Structure schematic diagram, which includes successively：A layers, B layers, B layers, B layers, C layers, wherein the ratio of each number of plies thickness is：1:1:1:1:2.
Each group distribution ratio is same as Example 1 with preparation method.
The principle of this preparation method is：Raw material and auxiliary material Jing vacuum intaking device are transported to middle hopper, then Jing
Cross the accurate weighing of loading component to be added in extruder in the ratio of setting, raw material melts in extruder, plastifies, kneading,
Compacting, enters feed block with constant pressure and output；The level and ratio of here distribution melt flow, subsequently into die head stream
Road, is distributed in the die head runner of overall with, from die lip mouth stream to casting roller on；By the speed and the extrusion capacity of melt flow of casting roller
Ratio is determining the average thickness of thin film, and it is the cross-section curve of thin film that calibrator is measured, and is controlled to thin film by PLC
Thickness curve quickly adjusted, thin film is pulled into rolling unit through traction apparatuss, can be by online cutting dress
The specification that film dividing is required into user is put, and cuts out two edge strips, edge strip enters pulverizer through blowing for blower fan, by powder
It is broken into fine hair and is transmitted back in extruder.And the thin film cut is wound on refill, the length or diameter by setting is automatic
Change of lap, through inspection, the labelled and quality certification, puts in storage as finished product.
From such scheme, the present invention solves problems with：
（1）Solve vacuum intake blockage problem：
Larger due to viscosifying masterbatch viscosity, masterbatch is adhered to one another easily to cause vacuum intake pipe, weighing device and delivery pipe
Road is blocked, and so as to have a strong impact on the accurate metering of masterbatch and feeding, causes properties of product unstable.The technical side that the present invention is provided
Case, by increasing masterbatch 20%-40%, adds polyethylene particle 60%-80% physical agitations 10 minutes, by polyethylene and thickening masterbatch
Mixing is stirred in proportion and makes masterbatch so that surface particles viscosity is reduced, then it is uniform with raw material stirring in proportion, inhaled by vacuum
Expects pipe feeding, the supply for so allowing for raw material be smooth accurately, it is ensured that properties of product are stablized；And can be become according to season
Change the ratio of adjustment thickening masterbatch, such as：The migration of viscosifier is relevant with the temperature of storage, its summer migration precipitation speed,
And winter migration velocity is slow, therefore the ratio of thickening masterbatch is added when wrap film for herbage is produced because seasonal variations have been adjusted,
I.e.：During winter production, addition is 1% or so more than summer addition；Thickening masterbatch can also all be added on two top layers, so as to
Obtain the wrap film for herbage that two sides all has autohension.
（2）The balance of obscurity and anti ageing property：
The herbage film of the present invention is added and brightens shading masterbatch because of the light transmittance reduced by thin film, and its outward appearance is
White.But, the common shading masterbatch that brightens affects very big to thin film strength and anti ageing property, by have selected addition
Shading masterbatch is brightened, and suitable anti-aging mother material has been selected with the ageing resistace of enhanced film, so as to reach shading
The balance of degree and anti ageing property.
（3）Winding flatness：The herbage film of the present invention is involved in because its deflection is very poor and autohension is extremely strong in winding
Air is difficult to be discharged, and film roll easily goes out wrinkle.In addition, cutting specification is more, it is also extremely difficult for winding.Production line
There are three kinds of winding modes select：Surface winding, center winding are gap winding, center surface winding.The present invention have selected
Center winding, and by film roll pressure roller by original hardness it is low to change hardness into high, can so greatly reduce wrapup procedure
In the air capacity that is involved in so that film roll is smooth.And surface winding and center surface winding are difficult during change of lap and in wrapup procedure
The air being involved in is discharged, and produces serious fold, so that affecting the quality of whole film roll.
Wherein, it is as follows that extruder technical parameter is set in embodiment 1 ~ 3：
Extruder temperature is controlled：A layers：260—270℃；B layers：260—280℃；C：260—270℃；Die head temperature control
System：260—280℃；Curtain coating roll temperature：20—35℃；Winder major parameter：Drawing tension 60N, touches roller and drives tension force 80N
, centre-driven tension force 85N, centre-driven tension force slope 0；Film roll platen pressure 2.5bar.
The mechanical experimental results of herbage film prepared by 1 embodiment of table 1.
As it can be seen from table 1 the indices of the herbage film of the present invention are above or are equal to international like product standard,
The new product Jing countries plastic products quality supervisory detection Spot detection manufactured experimently, physical properties index exceed product mark
Alignment request.
The mechanical experimental results of herbage film prepared by 2 embodiment of table 2.
From table 2 it can be seen that the indices of the herbage film of the present invention are above or are equal to international like product standard,
The new product Jing countries plastic products quality supervisory detection Spot detection manufactured experimently, physical properties index exceed product mark
Alignment request.
The mechanical experimental results of herbage film prepared by 3 embodiment of table 2.
From table 3 it can be seen that the indices of the herbage film of the present invention are above or are equal to international like product standard,
The new product Jing countries plastic products quality supervisory detection Spot detection manufactured experimently, physical properties index exceed product mark
Alignment request.
The explanation of above example is only intended to help and understands the method for the present invention and its core concept.It should be pointed out that right
For those skilled in the art, under the premise without departing from the principles of the invention, the present invention can also be carried out
Some improvement and modification, these improve and modification is also fallen in the protection domain of the claims in the present invention.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
Claims (3)
1. herbage film, it is characterised in that including at least one of which A layer composition, at least one of which B layer composition, at least one of which C layer group
Compound by the composition that necessarily puts in order, wherein described A layers include gathering by the metallocene linear low density that mass component is constituted
Ethylene 82 ~ 90%, viscosifies masterbatch 6 ~ 10%, anti-aging mother material 4 ~ 8%；
Wherein described B layers include the metallocene linear-low density polyethylene 90 added with nano imvite constituted by mass component
~ 94%, brighten shading masterbatch 6 ~ 10%；
Wherein described C layers include the metallocene linear-low density polyethylene 92 ~ 96% constituted by mass component, anti-aging mother material 4
~8%；Described herbage film include at least one of which A layer composition, at least one of which B layer composition, at least one of which C layer composition and by
Necessarily put in order composition, including BACAB arrangement architectures, wherein the ratio of the thickness of each layer is 1:1:2:1:1, also include
BCACB structures, wherein thickness proportion are followed successively by 1:2:1:2:1, also including ABBBC structures, wherein thickness proportion is followed successively by 1:1:
1:1:2。
2. herbage film according to claim 1, it is characterised in that the thickening masterbatch of described A layers is 60% polybutene and line
Property Low Density Polyethylene carrier compositions, anti-aging mother material be light stabilizer, ultraviolet ray adsorbents and linear low density polyethylene
The compositionss of carrier；Described B layers brighten shading masterbatch for titanium dioxide and the compositionss of linear low density polyethylene carrier；It is described
C layers anti-aging mother material for light stabilizer, UV absorbent and linear low density polyethylene carrier compositionss.
3. herbage film according to claim 1, it is characterised in that metallocene line of the described B layers added with nano imvite
Property Low Density Polyethylene, by choose -800 mesh specification of 600 mesh montmorillonite and metallocene linear-low density polyethylene through altogether
Mixed technique is prepared from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717099.7A CN104369500B (en) | 2014-12-02 | 2014-12-02 | Forage grass film and manufacturing method thereof |
Applications Claiming Priority (1)
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| CN107128045A (en) * | 2017-04-24 | 2017-09-05 | 新昌县瑞森农产品有限公司 | A kind of new Grass Silage Films |
| CN109438801A (en) * | 2018-09-26 | 2019-03-08 | 天津泽恒包装制品有限公司 | A kind of formula of herbage film composite master batch |
| CN111016370A (en) * | 2019-12-24 | 2020-04-17 | 厦门聚富塑胶制品有限公司 | Silage packaging film and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004195854A (en) * | 2002-12-19 | 2004-07-15 | Mitsubishi Kagaku Sanshi Corp | Stretch film |
| CN103987523A (en) * | 2011-09-26 | 2014-08-13 | Ｋｒｈ株式会社 | Stretch film product |
| CN104095167A (en) * | 2014-06-19 | 2014-10-15 | 安徽精良美瑞塑膜科技股份有限公司 | Film special for grass silage |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05301328A (en) * | 1992-04-28 | 1993-11-16 | Sekisui Chem Co Ltd | Pasture packing stretched film |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004195854A (en) * | 2002-12-19 | 2004-07-15 | Mitsubishi Kagaku Sanshi Corp | Stretch film |
| CN103987523A (en) * | 2011-09-26 | 2014-08-13 | Ｋｒｈ株式会社 | Stretch film product |
| CN104095167A (en) * | 2014-06-19 | 2014-10-15 | 安徽精良美瑞塑膜科技股份有限公司 | Film special for grass silage |
Non-Patent Citations (1)
| Title |
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| 《多层共挤流延牧草缠绕膜的研制》;刘雷强;《中国塑料》;20030731;第17卷(第7期);全文 * |
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