CN106832537A - One inter-species advises mould release membrance - Google Patents
One inter-species advises mould release membrance Download PDFInfo
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- CN106832537A CN106832537A CN201611122847.2A CN201611122847A CN106832537A CN 106832537 A CN106832537 A CN 106832537A CN 201611122847 A CN201611122847 A CN 201611122847A CN 106832537 A CN106832537 A CN 106832537A
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- mould release
- type area
- release membrance
- separating type
- resin
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
- C09J7/405—Adhesives in the form of films or foils characterised by release liners characterised by the substrate of the release liner
-
- 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
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
- C08J2483/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/04—Presence of homo or copolymers of ethene
- C09J2423/045—Presence of homo or copolymers of ethene in the release coating
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2483/00—Presence of polysiloxane
- C09J2483/005—Presence of polysiloxane in the release coating
Abstract
One inter-species advises mould release membrance, including non-separating type area（1）And separating type area（2）, it is characterised in that：Non- separating type area（1）C4 C14 vistanexes comprising delustring vistanex, the alpha-olefin polymerization resin by metallocene-produced and Z N Catalyst Productions；Separating type area（2）C4 C14 vistanexes comprising fluorine silicon resin and Z N Catalyst Productions.This advises the non-separating type area of mould release membrance（1）Heat sealing strength >=2.5N/inch, glossiness ＜ 30%, separating type area（2）Peeling force is 10.0 20gf/inch, release residual bonding rate >=80%.This rule mould release membrance has surface dulling, antistatic, heat sealing strength anti-sticking effect high and release compared with prior art, and can effectively prevent absorbent device gum inharmonious or glue transfer.
Description
Technical field
The present invention relates to inter-species rule mould release membrance.The described rule alternative traditional release liners/film of mould release membrance is mainly applied
In the gum protective layer of the disposable absorbent articles such as sanitary napkin, nappy and incontinence article.
Background technology
Release liners/film primarily serves the effect of isolation strip toughness material, be widely used to sanitary napkin, nappy and
The protective layer material of incontinence article gum.
The application for a patent for invention of Publication No. CN1358625A discloses a kind of heat-bonding adhering-resistant paper and its manufacture method,
There is provided it is a kind of without barrier paper just can it is anti-sticking, can by after Pressurized-heated self-adhesion seal, packaging women sanitary articles
Very fast heat-bonding adhering-resistant paper, the heat-bonding adhering-resistant paper includes wrapper, heat seal hot melt adhesive layer and separation layer.At this
In invention, packing material is roll web, and separation layer is silicon layer, and centre is hot melt adhesive layer.
The application for a patent for invention of Publication No. CN103282415A disclose it is a kind of be related to be used as adhesivity object it is interim
The mould release membrance of supporting mass, more specifically to the silicon parting composition with excellent antistatic property and by the silicon from
Type composition is coated on polyester release film prepared by polyester base film with excellent antistatic behaviour and excellent peeling force.
The application for a patent for invention of Publication No. CN1041395688A discloses a kind of mould release membrance, and the invention belongs to packing timber
A kind of material technical field, and in particular to mould release membrance, it is characterised in that：It includes silicon layer, silicone oil adhesion layer, supporting layer, auxiliary
Layer, silicon layer, silicone oil adhesion layer, supporting layer, auxiliary layer are sequentially arranged, and silicone oil adhesion layer, supporting layer, auxiliary layer are using coextrusion
Integral by biaxial tension, silicone oil adhesion layer, supporting layer, the mass ratio of auxiliary layer are 1.5:7:1.5；Biaxial tension it is vertical
After to stretching, apply silicone oil on the surface of silicone oil adhesion layer and form silicon layer, the thickness of silicon layer is 2um.
The subject matter that above-mentioned release liners/film are present is：1st, using common neutral sizing, through polyethylene or polypropylene
After film or plastic-coated, then through silicone coated；Or anti-adhesion effects and fissility are reached with silicone oil coating again after coating silane coupling agent
Energy.Typically solvent-type organosilicon is used in industry, although easy to use, but remain substantial amounts of solvent, Yi Zao in product after processing
Into environmental pollution, harm health；2nd, the factor such as coating technique, silicone oil quality, base material situation, coating weight directly influences release product
The quality of product, product quality less stable；3rd, the release liners of coated silicone release agent/film sheet resistance is larger, processing
During easily produce electrostatic by friction, its surface, dust and other debris in absorption air, so as to influence product beautiful
See；4th, most domestic release liners/film manufacturer is all uneven in the presence of painting silicon, and peeling force is non-adjustable, and residual bonding rate is low
Problem.
The content of the invention
Defect the invention aims to overcome prior art a, there is provided inter-species advises mould release membrance, this rule mould release membrance
Function with frosting, antistatic, heat sealing strength peeling force stabilization high and release, it is adaptable to disposable absorbent article.Should
Between advise mould release membrance there is preferable stability, even if in the presence of external high temperature remain bonding rate will not also be greatly reduced, no
The inharmonious phenomenon of gum occurs, the stability bonded with gum is drastically increased.Between advise mould release membrance it is alternative it is traditional from
Type film/paper is using improving the quality of disposable absorbent article.
The present invention provides inter-species rule mould release membrance, and it includes non-separating type area and separating type area, it is characterized in that：It is non-release comprising disappearing
The C4-C14 vistanexes of light vistanex, the alpha-olefine polymerizing resin by metallocene-produced and Z-N Catalyst Productions；
C4-C14 vistanex and fluorine silicon resin of the separating type area comprising Z-N Catalyst Productions.The non-separating type area of this rule mould release membrance
Heat sealing strength >=2.5N/inch, glossiness ＜ 30%, separating type area peeling force be 10.0-20gf/inch, release residual bonding rate >=
80%。
Of the present invention rule mould release membrance, its non-separating type area includes 0.5wt%-1.5wt% antistatic additive.Plastics generally have
Electrical insulating property, such as polyethylene (PE), the sheet resistance of polypropylene (PP) are generally 1016-1020Ω, plastic sheeting is in production process
In with roll friction produce electrostatic, be difficult eliminate.Due to electrostatic interaction, the dust that plastic sheeting can be adsorbed in air is miscellaneous with other
Thing, so as to influence film article attractive in appearance.Due to the influence of electrostatic, production in plastic sheeting, using and storing process in film
Sticking phenomenon can occur between layers so that film is difficult to efficiently separate with film, cause uncoiling difficult.Traditional antistatic additive is
It is made up of the surfactant of small molecule, it contains hydrophilic radical and lipophilic group, the compatibility with resin is poor, antistatic
Agent can be from resin internal migration to surface.Traditional antistatic additive only can just work under certain damp condition, its parent
Water base group can promote frosting to be readily wetted by water, so that conduct static lotus, reduces the surface resistivity of plastics.Only when tradition is anti-
To can just work behind surface, the antistatic additive molecule of plastics inner moves about to surface electrostatic agent molecular migration, until
It is completely consumed, thus its action effect is effective only in the range of certain hour.Currently preferred antistatic additive is permanent type
Antistatic additive.After permanent antistatic agent and macromolecule matrix are blended, because the locomitivity of antistatic additive strand is stronger,
On the one hand it is intermolecular to be easy to proton to move, the electrostatic charge for producing is conducted and discharged by ionic conduction；On the other hand, it is antistatic
Ability is embodied by its special dispersing morphology.Macromolecule permanent antistatic agent is mainly in the non-separating type area of product in micro-
Thin stratiform or tendon shape are distributed, and constitute the non-separating type area of electric conductivity, and are in almost spherical distribution in core, are formed so-called
" core shell structure ", and leak electrostatic charge as path.Permanent antistatic agent can form fibrous conduction in polymeric inner
Network, the electrostatic charge that can be accumulated polymer surfaces is derived, and for good and all eliminates the electric charge of various polymer surfaces.Antistatic additive adds
The increase of dosage not only increases product cost, can also bring adverse effect to the manufacturing procedure in later stage.The non-separating type area bag of the present invention
The thermoplastic permanent's type antistatic additive synthesized based on the antistatic additive preferred polyamide and polyethers hindered amine that contain.The present invention is optimal
Elect BASF permanent antistatic agent Irgastat P18 as, addition is 0.5wt%-1.5wt%.
The of the present invention matting resin of the non-separating type area comprising 20wt%-40wt% of rule mould release membrance.Realize scattering delustring
Generally there are two approach：One is to increase product surface scattering and delustring, and two from this volume scattering of reinforced article and delustring.Surface scattering
Realized by improving product surface roughness.Many experiments show：Melt index (MI)（MI）The extinction of product can be influenceed
Can, when the melt index (MI) of vistanex（MI）In 1-5g/10min, gloss is best, and the delustring in 0.2-0.3g/10min
Best results；Molecular weight distribution（MWD）Also film extinction performance can be influenceed, molecular weight distribution resin film glossiness wider is more
Low, its reason is that the increase of material surface irregularity is caused.Film obtained in one-component resin, delustring mechanism is that its is coarse
The surface scattering that surface causes, and the accumulation of rough surface root crystal grain near surface body.Abundant experimental results show
Preferably melt index (MI) is 0.25- to the Extinction Characteristic main contributor of polyolefin matt film in the coarse surface of film, the present invention
0.5g/10min, density is 0.920-0.930g/cm3LLDPE.It is film surface using another advantage of matting resin
The concavo-convex mat surface for being formed, advantageously reduces intermembranous adhesion, is conducive to film uncoiling.The present invention advises mould release membrance between preparing
Non- separating type area glossiness ＜ 30%, heat sealing strength >=2.5N/inch, width is 10-20mm.
Non- separating type area of the present invention also includes alpha-olefine polymerizing resins of the 35wt%-70wt% by metallocene-produced,
Described is the cyclopentadienyl with molecular weight distribution wide and/or multimodal molecular weight distribution by the alpha-olefine polymerizing resin of metallocene-produced
Metal polyethylene or polypropylene or combination thing.Advantage by the alpha-olefine polymerizing resin of metallocene-produced is purity
The high, transparency is good, and heat seal initiation temperature is low, heat seal strength is good.Have the disadvantage due to its be typically free of long-chain branch, component narrowly distributing,
The winding for lacking low-molecular-weight " lubricant " and component high " toughener " chain is few, so that processing difficulties.Currently preferred tool
It is that it both contains very short polymer point to have molecular weight distribution wide and/or the metallocene-polyolefin resin of multimodal molecular weight distribution
Subchain, but containing polymer molecular chain very long, short molecular chain therein can play intermolecular lubrication, improve product
Processing characteristics, and long chain then ensure that the mechanical strength of product, when a non-separating type area of rule mould release membrance and a rule are release
When the bottom of film is sealed, there is good heat sealability, sealing time short requirement when can meet amenities high-speed production.Have
Molecular weight distribution wide and/or the polymer resin molecule amount wider distribution of multimodal molecular weight distribution, existing metallocene polymers
Excellent properties, and with the good processing characteristics of Z-N polymerization catalyst things, realize having complementary advantages.Many experiments show：Will
35wt%-70wt% is total to by the alpha-olefine polymerizing resin of metallocene-produced and the C4-C14 vistanexes of 5wt%-45wt%
With good heat-sealing and processing characteristics when mixed, by the molecular weight distribution (Mw/ of the alpha-olefine polymerizing resin of metallocene-produced
Mn) about 5.0-20.0.
Traditional mould release is coated using organosilicon, easily causes gum inharmonious or glue transfer, is traced it to its cause：1st, it is organic
Silicon interleaving agent is shifted to gum.Organosilicon Release Agent is shifted to gum, and organosilyl surface tension force is 19.1dyn/cm2, therefore, if
Organosilicon Release Agent is transferred on gum, will result directly in gum inharmonious；2nd, Organosilicon Release Agent and gum react.Interleaving agent contains
There is platinum catalyst, platinum is C=C double bond addition catalysts, and the primary raw material of PUR is SIS or SBS, thermoplastic elastomer (TPE) etc.,
It contains C=C double bonds；If organosilicon solidification is incomplete, methyl screen effect is poor, and platinum catalyst is easily contacted with gum, causes gum
In C=C double bonds by addition, thermoplastic elastomer (TPE) such as SIS or SBS etc., to glass transition, loses viscoplasticity from rubbery state, carries on the back
Glue loses pressure-sensitive；3rd, gum is shifted to release liners, silicon amount is applied mainly in release liners very little or holiday, due to gum and primary coat
The interaction of agent causes gum to be shifted to mould release.
Of the present invention C4-C14 polyolefin of the separating type area of rule mould release membrance comprising fluorine silicon resin and Z-N Catalyst Productions
Resin.- Si-O- containing organosilicon characteristic on silicon-fluorine polymer owner's chain, makes it possess the superior physicochemical properties of organosilicon,
Such as low glass transition temperature, the performance such as low surface tension and surface energy；The fluoro-alkyl of side chain connection makes it have fluoropolymer concurrently
Oil resistant solvent resistance.Constituted as copolymer, fluorine silicon resin can also be effectively improved the surface wettability of polymer.This hair
Bright selection fluorine silicon resin, makes it have good release effect and can solve the problems, such as that organic fluorine price is high.It is substantial amounts of
Experiment shows the selection of fluorine silicon resin, it is necessary to consider its compatibility with matrix resin.If poor compatibility, the performance of product compared with
Difference, but compatibility is very good, then and fluorine silicon is too slow to the speed of surface migration, it is difficult to form separating type area.The increase of fluorine silicone content can shadow
Ring the processing characteristics and release effect of composition, it is therefore necessary to which fluorine silicon resin content is controlled by.In separating type area of the present invention
Fluorine silicon resin is the Organic fluoride modified polyorganosiloxanes polymer of middle HMW, be resistant to 300 DEG C of high temperature above, self-crosslinking and
Into.The density of currently preferred fluorine silicon resin is 0.90-0.95, and viscosity is 500-1000cps, substance content 50 ± 2%,
Addition 5wt%-10wt%.The present invention advises mould release membrance release sector width between preparing is 5-15mm, and peeling force is 10.0-
20gf/inch, release residual bonding rate >=80%.
The beneficial effects of the present invention are：Mould release membrance is advised between being provided according to the present invention, the heat sealing strength of its non-separating type area
>=2.5N/inch, glossiness ＜ 30%, separating type area peeling force are 10.0-20gf/inch, release residual bonding rate >=80%.With it is existing
Have technology has delustring, antistatic, heat sealing strength anti-sticking effect high and release compared to this rule mould release membrance, and can effectively prevent
Amenities gum is inharmonious or glue is shifted.
The above-mentioned preparation method of rule mould release membrance is constituted it is a further object to provide a kind of, methods described includes
Following steps：
1) each layer raw material is blended in proportion respectively, is respectively placed in non-separating type area, separating type area raw material by metering device
In A, B screw rod of bi-component colour bar blow-extruder, thickness is extruded in adjustment as needed.
2) operations such as extruded, cooling, corona, winding advise mould release membrance product between being made.
The present invention is produced using conventional production process and production equipment in the art, belongs to known technology, herein not
Repeat again.
Brief description of the drawings
Fig. 1 is the schematic diagram that mould release membrance is advised between the present invention.
The non-separating type areas of 1-, 2- separating type areas.
Specific embodiment
Embodiment 1
Step 1, the antistatic additive Irgastat P18 for weighing 0.5wt%（Basf）, 20wt% matting resin FB2230
(Borealis), metallocene resin 5101 (Dow chemistry), the 2045G of 9.5wt% of 70wt%（Dow chemistry）Agitated machine mixing
Uniformly.
Step 2, the FS150A (SUMITOMO CHEMICAL) for weighing 95%wt, the agitated machines of fluorine silicon resin FSI-105 of 5wt% are well mixed.
Step 3, step 1-2 materials are separately added into A, B screw rod of bi-component colour bar blow-extruder, through cooling, electricity
The operations such as dizzy, winding advise mould release membrance product between being made.
Embodiment 2
Step 1, the antistatic additive Irgastat P18 for weighing 1.0wt%（Basf）, 40wt% matting resin FB2230
(Borealis), the 2049P (Dow of 19wt%）, 40wt% metallocene resin EXCEED 1018（Exxon）Agitated machine mixing
Uniformly.
Step 2, the FS153S (SUMITOMO CHEMICALs for weighing 80wt%）, 10wt% fluorine silicon resin KX-501 and 10% color masterbatch（From
System）Agitated machine is well mixed.
Step 3, step 1-2 materials are separately added into A, B screw rod of bi-component colour bar blow-extruder, through cooling, electricity
The operations such as dizzy, winding advise mould release membrance product between being made.
Embodiment 3
Step 1, the antistatic additive Irgastat P18 for weighing 1.5wt%（Basf）, 30wt% matting resin FB2230
(Borealis), the 1002kw of 33.5wt%（Exxon）, 35wt% the agitated machines of MarFlex D139 be well mixed.
Step 2, the CA12A (basell), the color masterbatch of the fluorine silicon tree KX-501 and 5% of 7.5wt% that weigh 87.5.5wt%（From
System）Agitated machine is well mixed.
Step 3, step 1-2 materials are separately added into A, B screw rod of bi-component colour bar blow-extruder, through cooling, electricity
The operations such as dizzy, winding advise mould release membrance product between being made.
According to embodiment 1-3, release membrane sample 1, sample 2, sample 3 are advised between producing, test result is as shown in table 1：
Table 1
Heat sealing strength method of testing：By GB/T2358-1998《Plastic film packaging bag heat sealing strength test method》Tested,
Pressure is 300KPa.
Peel test force method：Tesa7475 standard rubber bands are attached in the layer upper surface of mould release membrance, 2.5KG standard rubbers are used
Roller is rolled three times back and forth, in room temperature（23 ± 2 DEG C, relative humidity 50%）It is lower to place 2 hours.Then use INSTRON puller systems with
The speed of 300mm/min carries out 180 ° of strippings to sample, records maximum and average stripping force value.Experimental result is with gf/inch tables
Show, every group should not be less than 3.
Residual bonding rate method of testing：NITTO31B standard rubbers band is attached to mould release membrance along longitudinal direction（Release liners）On sample,
Rolled back and forth three times with the automatic roller machine of 2kg standards.Sample is placed on and is set as in 70 DEG C of baking oven, the pressure of 2kg standard test weights
Aging 20 hours under power, labeled as sample 1；NITTO31B standard rubber bands are affixed on Teflon plate, wrinkle can not be produced during bonding
Trace and bubble.Rolled back and forth three times with standard automatic roll machine.Sample is placed on and is set as in 70 DEG C of baking oven, 2kg standard weights
Aging 20 hours under the pressure of code, labeled as sample 2.Materials respectively and 1,2 be bonded on standard stainless steel plate, with roll squeezer come
Rollback is pressed three times, in room temperature（23 ± 2 DEG C, relative humidity 50%）It is lower to place 2 hours.Then on INSTRON puller systems with
The speed of 300mm/min carries out 180 ° of strippings, draws data " F1 " " F2 ".Result of calculation：Residual bonding rate=F1/F2*100%.
This rule mould release membrance is produced using conventional production process and production equipment in the art, alternative traditional
Release liners/film is applied to the gum protective layer of disposable absorbent article.Although with reference to several preferred embodiments therein to this
Invention is shown and described, but design concept of the invention is not limited thereto, and is not departing from spirit of the invention and model
Various changes can be carried out in the case of enclosing to its form and details, is deleted and is increased.But it should be noted that more possible
Modification is still fallen within scope of the claims.
Claims (10)
1. an inter-species advises mould release membrance, and it includes non-separating type area and separating type area, it is characterised in that：
Non- separating type area includes delustring vistanex, alpha-olefine polymerizing resin and Z-N Catalyst Productions by metallocene-produced
C4-C14 vistanexes；
C4-C14 vistanex of the separating type area comprising fluorine silicon resin and Z-N Catalyst Productions；
Heat sealing strength >=2.5N/inch, the glossiness ＜ 30% of the non-separating type area of this rule mould release membrance, separating type area peeling force is 10-
20gf/inch, release residual bonding rate >=80%.
2. mould release membrance is advised according to claim 1, it is characterised in that described vistanex is polyethylene or poly- third
Alkene or ethylene glycol terephthalate（PET）Or their compositions.
3. mould release membrance is advised according to claim 1, it is characterised in that the non-separating type area also includes 0.5wt%-1.5wt%
Antistatic additive.
4. mould release membrance is advised according to claim 3, it is characterised in that the antistatic additive is quiet for thermoplastic permanent's type resists
Electric agent.
5. mould release membrance is advised according to claim 1, it is characterised in that contain 20wt%-40wt% and disappear in described non-separating type area
Light vistanex, 35wt%-70wt% by metallocene-produced alpha-olefine polymerizing resin.
6. mould release membrance is advised according to claim 5, it is characterised in that the described alpha-olefine polymerizing by metallocene-produced
Resin is the metallocene PE or polypropylene or the group of the two being distributed with molecular weight distribution wide and/or multimodal molecular weight
Compound, molecular weight distribution (Mw/Mn) about 2.0-20.0.
7. mould release membrance is advised according to claim 1, it is characterised in that contain 60%wt-90%wt polyenes in described separating type area
Hydrocarbon resin, 5wt%-10%wt fluorine silicon resins, 0wt%-10%wt color masterbatches.
8. mould release membrance is advised according to claim 7, it is characterised in that the fluorine silicon resin gathers organic for organic fluorine richness
Siloxane polymer.
9. according to claim any one of 1-8 between advise application of the mould release membrance in disposable absorbent article.
10. a kind of method that mould release membrance is advised between manufacture is as described in claim any one of 1-8, it is characterised in that：
（1）Each layer raw material is blended in proportion respectively, is respectively put the raw material of non-separating type area, separating type area by metering device
In A, B screw rod of bi-component colour bar blow-extruder, thickness is extruded in adjustment as needed；
（2）The operations such as extruded, cooling, corona, winding advise mould release membrance product between being made.
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| CN108587512A (en) * | 2018-01-31 | 2018-09-28 | 深圳市鑫亚凯立科技有限公司 | A kind of polypropylene release film of high tenacity high stretch |
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Application publication date: 20170613 |