BRIDGING THE GAP BRIDGING THE GAP BETWEEN MELTBLOWN BETWEEN MELTBLOWN

AND SPUNBONDAND SPUNBONDDoug BrownDoug Brown

PresidentPresident

BiaxBiax--Fiberfilm Corp.Fiberfilm Corp.

BiaxBiax--Fiberfilm was Fiberfilm was founded by Dr. Eckhard founded by Dr. Eckhard Schwarz in November Schwarz in November

19751975

Biax FiberBiax Fiber--Film CorporationFilm CorporationMachinery Manufacturer Machinery Manufacturer

For Unique Meltblown and For Unique Meltblown and Stretching machinesStretching machines

The Principals of the The Principals of the Biax MB Process are Biax MB Process are simple. simple. Low Temperature Low Temperature Low Residence timeLow Residence time

10 different Web 10 different Web samples:samples:

35MFR PP 35MFR PP 500MFR500MFR70MFR PLA70MFR PLA18MFR Vistamaxx18MFR Vistamaxx80MFR Vistamaxx80MFR Vistamaxx

One Layer vs. One Layer vs. Multiple layersMultiple layers

What if you could make a What if you could make a single layer product single layer product perform like a multiple perform like a multiple layer product?layer product?

Samples 1Samples 1--4 are 4 are 35MFR 35MFR SpunbondSpunbond PP PP

35 MFR PP Meltblown35 MFR PP Meltblown

Samples 5 is Samples 5 is 500MFR Meltblown 500MFR Meltblown Grade PP To show Grade PP To show a typical MB Grade a typical MB Grade

Metocene MF650WMetallocene PP Homopolymer

Product DescriptionMetocene MF650W is a high melt flow rate resin with very narrow molecular weight distribution. It is suitable for melt blown fibers as well as compounding extrusion applications. This material is available as a free-flowing, low dust granule resin. This product contains no peroxide or peroxide decomposition by-products. It is a low gas fading product. The narrow molecular weight distribution and high degree of resin consistency promote finer fibers, enhanced fiber filament thread line continuity as well as reduced fly and lint in melt blown spinning processes. Its high melt flow rate allows reduced processing temperatures and energy savings. This is a low smoke, clean running resin with low gas fading characteristics.Product Characteristics

Colour Concentrates, Meltblown, Absorption & Filtration, Wipes/TissuesTypical Customer Applications

High Flow , Homopolymer, Narrow Molecular Weight Distribution, High PurityFeatures

Melt BlownProcessing Method

North AmericaAvailability

ISO ASTMTest Method used

Commercial: ActiveStatus

g/10 min500ASTM D 1238Melt flow rate (230°C/2.16kg)

sp gr 23/23°C0.91ASTM D 792Density -Specific Gravity (23 °C)

Physical

UnitValueMethodTypical Properties

Samples 6Samples 6--7 are 7 are 70MFR PLA 70MFR PLA samples with samples with different basis different basis weights weights

MeltblownTypical Material & Application Properties (1)

Physical Properties PLA Polymer 6252D ASTM Method

Specific Gravity 1.24 D792

Relative Viscosity 2.5 CD InternalViscotek method

%d (wt %) 1.4 CD InternalGC method

Melt Index, g/10 min (210ºC) 70-85 D1238

Melt Density (230°C) 1.08

Crystalline Melt Temperature (°C) 160 - 170 D3418

Glass Transition temperature (°C) 55-60 D3417

Typical Fiber Properties

Denier per filament 1-2 gms/9000m

Fabric Weight (g) various

Pellet Lubricant Yes

(1) Typical properties; not to be construed as specifications

NatureWorks® PLA polymer 6252D, 

a NatureWorks LLC product, is a thermoplastic fiber‐grade resin

derived from annually renewable resources. Available in 

lubricated pellet form, 6252D is designed for meltblown 

products using conventional as well as high pressure die 

meltblown equipment.   NatureWorks® PLA 6252D can be 

converted into a broad range of fiber products. See table at right

for typical polymer  properties.

Applications• Potential applications for PLA 

polymer 6252D include:

• Wipes

• Geotextiles

• Hospital garments

• Absorbent pad liners

• Personal hygiene products

• Agriculture/horticultural products

• Filtration products

Processing InformationNatureWorks® PLA polymer 6252D grade will process on 

conventional meltblown equipment with thorough cleaning 

since PLA is not compatible with a wide variety of polymers.   

6252D can also be used on meltblown equipment with high 

pressure die systems providing a broader processing window.  

Melt temperature can be used to reduce melt viscosity and 

provide adequate pressures on conventional meltblown 

systems. 

NatureWorks® PLA Polymer 6252D

Machine ConfigurationGeneral‐purpose screws with L/D ratios of 24:1 to 30:1 and 3:1 compression ratios are recommended.   However, screws with mixing sections or shallow metering channels may overheat the melt at high screw speeds.  Typical melt spinning temperatures are 220 – 245°C.    

PLA AdvantagesPLA Advantages

Cost CompetitiveCost CompetitiveRenewable resourceRenewable resource

Compostable Compostable

PLA MB PLA MB Potential Uses:Potential Uses:

WipesWipesFiltration Filtration

GeoTextilesGeoTextilesHygieneHygiene

Absorbent padsAbsorbent pads

Low MFR ElasticsLow MFR Elastics

Interest in Elastic fabrics and Interest in Elastic fabrics and Composites Composites

ExxonMobilChemical

Vistamaxx™ 6202 Propylene-based ElastomerProduct Description Key FeaturesVistamaxx 6202 propylene-based elastomer is an olefinic elastomer produced using ExxonMobilChemical's EXXPOL™ Catalyst Technology. It has excellent elastomeric properties, is easy to process and is compatible with a wide variety of materials. It is particularly good for thermoplastic and polyolefinic blends where a balance of flexibility, transparency and impact performance is required.

Suitable for a wide range of blown and cast film applications, extrusion coating and lamination applications. Other typical applications include calendered or extruded sheet/profiles, injection molded goods and

nonwovens. Excellent adhesion to conventional or metallocene PP and PE. Very good elasticity and toughness. Very low seal initiation temperature combined with high seal strength when used as sealing layer of co-

extruded structures. Very good chemical resistance and long term aging. Particularly good for thermoplastic and polyolefinic blends where a balance of flexibility, transparency and

impact performance is required. EU and China RoHS compliant.

General Availability 1 Africa & Middle East

PacificEuropeLatin America

North AmericaSouth America

Applications Calendered Profiles Calendered Sheeting Cast Film

Extruded profiles Extruded Sheeting Injection Molding

PP/TPE Modification Rubber Modification

Uses Compounding Film Packaging

RoHS Compliance RoHS Compliant

Form(s) Pellets

Revision Date 08/17/2009

Physical Typical Value Unit Test Based OnDensity 0.861 g/cm³ ASTM D1505Melt Index 2 7.4 g/10 min ExxonMobil Method

Melt Mass-Flow Rate (MFR) (230°C/2.16 kg) 18 g/10 min ASTM D1238

Melt Mass-Flow Rate (MFR) (230°C/2.16 kg) 18 g/10 min ISO 1133

Ethylene Content 15.0 wt% ASTM D3900

Hardness Typical Value Unit Test Based OnDurometer Hardness (Shore A, 15 sec, 73°F) 61 ASTM D2240

Elastic MB Elastic MB Potential Uses:Potential Uses:

Filtration Filtration AutomotiveAutomotive

HygieneHygieneInsulation ApplicationsInsulation Applications

Photo of Photo of Lab Line RunningLab Line Running

Have to find this 

photo yet

Cooperation Cooperation

THANK YOU!!!THANK YOU!!!

Questions?Questions?

President Douglas B. Browndbrown@biax‐fiberfilm.com

Address: N1001 Tower View DriveGreenville, WI 54942 U.S.A.

Telephone:  920‐757‐9000

Fax: 920‐757‐9082

Website: www.biax‐fiberfilm.com

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