What Is The Significance Of Pressure Control In A Laboratory Press Machine? Unlock Peak Battery Performance

Learn how precise pressure control and pressure holding in laboratory presses eliminate porosity and reduce resistance in solid-state batteries.

What Are The Primary Applications Of Hydraulic Presses In Laboratories? Essential Uses In Sample Prep & Material Testing

Learn how laboratory hydraulic presses enable precision sample preparation for FTIR/XRF and critical material testing for research and quality control.

When Is A Hydraulic Press Essential, And When Is A Hand Press A Better Alternative? Choosing The Right Lab Press

Compare hydraulic and hand presses for lab use. Learn when high-pressure densification, XRF, or KBr pellet prep requires specific pressing tools.

What Features Contribute To The Accuracy Of Movement In Pillar-Type Laboratory Presses? Ensure Precision In Every Press

Discover how pillar guiding, automatic lubrication, and touchscreen controls ensure movement accuracy in laboratory presses.

What Are The Advantages And Common Applications Of An Automatic Hydraulic Press? Elevate Your Lab's Precision

Discover how automatic hydraulic presses enhance laboratory efficiency through programmable precision, autonomous operation, and consistent results.

What Is The Function Of A Laboratory Hydraulic Press For Nano-Alumina? Achieve Perfect Green Body Consolidation

Learn how laboratory hydraulic presses transform nano-alumina powders into stable green bodies, providing essential strength for CIP and sintering.

How Is A Laboratory Hydraulic Press Used For Rare Earth Oxysulfide? Master Initial Shaping For Superior Results

Learn how laboratory hydraulic presses create standardized green bodies from rare earth oxysulfide powders to ensure uniform density and processing.

Why Is A Laboratory Hydraulic Press Used In The Preparation Of Glass Composite Phosphate Materials?

Learn why hydraulic presses are vital for creating green bodies and optimizing sintering in glass composite phosphate material synthesis.

Why Is Pressure Precision Important In A Laboratory Hydraulic Press? Mastering Refractory Green Body Density

Learn how pressure precision in laboratory presses optimizes molding curves, preserves particle integrity, and ensures industrial scalability.

How Does A High-Tonnage Hydraulic Press Contribute To Ieap Of Niobium And Tantalum? Master Refractory Metal Processing

Learn how high-tonnage hydraulic presses drive IEAP for Niobium and Tantalum to achieve severe plastic deformation and microstructural refinement.

How Does A Precision Laboratory Hydraulic Press Monitor Mold Wear? Track Ejection Force For Predictive Maintenance

Learn how precision load sensors in laboratory hydraulic presses detect mold wear by monitoring ejection force trends in steel powder pressing.

What Is The Function Of A High-Precision Laboratory Press In Hydrogel Electrolyte Prep? Optimizing Zinc-Ion Batteries

Learn how high-precision presses enable directional alignment and high-density filler distribution in structured composite hydrogel electrolytes.

What Role Does A Laboratory Hydraulic Press Play In Al6061 Graphene Composites? Essential Pre-Compaction Steps

Learn how laboratory hydraulic presses create the critical 'green body' for Al6061 graphene composites through precise pre-compaction and air expulsion.

What Is The Importance Of A Laboratory Hydraulic Press In Oxide Ceramic And Sputtering Target Prep? Key Role Revealed

Learn how laboratory hydraulic presses ensure high-density 'green bodies,' uniform sintering, and superior performance for oxide ceramic materials.

What Are The Primary Applications Of A Lab Press In Metal Additive Manufacturing? Accelerate R&D & Material Testing

Learn how precision laboratory hydraulic presses are used in metal additive manufacturing for powder screening and density benchmarking.

Why Is Precise Control Of Forming Pressure Essential When Using A Laboratory Hydraulic Press For Mullite-Silica?

Learn why precise pressure control is critical for Mullite-Silica refractories to optimize porosity, strength, and structural integrity.

Why Is A Precision Laboratory Press Required For Sodium Symmetric Batteries? Optimize Your Solid-State Interface

Learn how precision pressure forces interface reconstruction in sodium batteries to reduce impedance and inhibit dendrite growth effectively.

How Does A Laboratory Hydraulic Press Facilitate He-Ldh Ftir Sample Preparation? Ensure High-Precision Data Quality

Learn how laboratory hydraulic presses create transparent pellets for HE-LDH FTIR spectroscopy by fusing KBr powder and removing internal voids.

What Technical Guarantees Does A Lab Hydraulic Press Provide For Bifeo3–Srtio3 Ceramic Molding? Achieve High Stability

Learn how laboratory hydraulic presses guarantee mechanical stability and geometric integrity in BiFeO3–SrTiO3 ceramic green body formation.

How Does A Benchtop Laboratory Hydraulic Press Ensure The Quality Of Stainless Steel-Doped Zirconia Green Bodies?

Learn how laboratory hydraulic presses use precise high-magnitude pressure to eliminate pores and ensure density in zirconia green bodies.

Why Is Precise Pressure Control From A Laboratory Hydraulic Press Essential For Llto? Ensure Solid Electrolyte Success

Learn why precise hydraulic pressure is vital for LLTO molding: preventing mold jamming, reducing voids, and ensuring high-density green bodies.

Why Are A Laboratory Hydraulic Press And Its Pressure Control System Essential For Testing Icr? Ensure Precision Measurements.

Learn how laboratory hydraulic presses simulate fuel cell stack environments to provide precise ICR measurements for bipolar plate validation.

What Is The Primary Purpose Of Using A Laboratory Hydraulic Press At 530 Mpa? Unlock High-Density Solid Electrolytes

Learn how high-pressure hydraulic presses eliminate porosity and maximize ion transport in solid-state electrolyte pellet preparation.

What Factors Contribute To The Quality Of Pressed Pellets? Master Key Variables For Perfect Results

Learn how particle size, binder choice, pressure, and more ensure stable, uniform pellets for precise lab analysis like XRF.

What Is The Function Of A Laboratory Hydraulic Press In Battery Material Prep? Optimize Your Electrode Performance

Learn how laboratory hydraulic presses enhance battery energy density and conductivity through precision electrode compaction and densification.

Why Is Precise Pressure Control From A Laboratory Hydraulic Press Essential? Mastering Geopolymer Specimen Molding

Learn why precision pressure control is vital for geopolymer molding to ensure structural integrity, prevent defects, and guarantee valid data.

What Are The Advantages Of Using A Laboratory Hydraulic Press With Heating And Cooling Systems For Bio-Composites?

Discover how integrated heating and cooling in laboratory hydraulic presses optimize resin flow and structural integrity for bio-composite laminates.

What Are The Functions Of A Hydraulic Press And A Peek-Lined Titanium Alloy Die In The Cold-Pressing Process For All-Solid-State Battery Cathode/Separator Stacks? Achieve High-Density, Pure Batteries

Learn how a hydraulic press and PEEK-lined die work together to densify battery materials and prevent chemical contamination during cold-pressing.

What Is The Function Of The Pressure Applied By A Hydraulic Press During The Initial Compaction Stage Of The Cold Sintering Process (Csp)? Master The Synergy Of Force And Chemistry

Learn how hydraulic press pressure enables densification, solvent redistribution, and particle rearrangement in the Cold Sintering Process (CSP) for advanced materials.

Why Is Precise Pressure Crucial For Solid-State Battery Test Cells? Ensure Accurate & Reproducible Data

Learn why precise, constant pressure is essential for solid-state battery assembly to eliminate voids, reduce impedance, and ensure data integrity.

What Is The Primary Function Of A Laboratory Hydraulic Press In The Fabrication Of All-Solid-State Batteries? Achieve Dense, High-Performance Solid-State Cells

Learn how a lab hydraulic press applies high, uniform pressure to compact powders and create seamless solid-solid interfaces, essential for functional all-solid-state batteries.

What Is The Direct Effect Of The Pressure Magnitude Applied By A Hydraulic Press On The Ionic Conductivity Of Li7P2S8I0.5Cl0.5 Electrolyte Pellets? Boost Conductivity From 0.9 To 3.08 Ms/Cm

Learn how hydraulic press pressure (10-350 MPa) directly increases Li7P2S8I0.5Cl0.5 pellet ionic conductivity by eliminating voids and reducing grain boundary resistance.

What Is The Key Function Of A Laboratory Hydraulic Press In All-Solid-State Battery Fabrication? Achieve Perfect Layer Lamination For Superior Performance

Discover how a lab hydraulic press enables solid-state battery fabrication by creating intimate layer contact and densifying the Li2.5Y0.5Zr0.5Cl6 electrolyte.

What Is The Critical Function Of A Laboratory Hydraulic Press In The Assembly Of All-Solid-State Batteries From Li6Ps5Br And Li2S Powders?

Discover how a lab hydraulic press creates dense, ion-conductive pellets from Li6PS5Br and Li2S powders, enabling functional solid-state battery assembly.

Why Is Applying A Specific Pressure With A Press Necessary During The Final Assembly Of An All-Solid-State Battery? Achieve High-Performance Battery Assembly

Learn why controlled pressure is critical for eliminating voids and minimizing resistance in all-solid-state batteries, enabling high-rate performance and reliable data.

Why Is Consistent Sample Preparation Important For Xrf Analysis? Ensure Accurate And Reliable Results

Learn how consistent sample prep prevents errors in XRF analysis by addressing surface roughness, particle size, and density variations for precise elemental data.

What Are The Characteristics Of Manual Hydraulic Presses? Essential Features, Trade-Offs, And Lab Uses

Explore manual hydraulic press characteristics: operation, load capacity, applications in FTIR and XRF, and cost vs. precision trade-offs for labs.

What Types Of Material Testing Can Be Performed Using A Hydraulic Press? Explore Versatile Lab Applications

Learn about material testing with hydraulic presses, including compressive strength, tensile tests, and sample prep for spectroscopy in labs.

What Are The Common Sample Preparation Techniques For Xrf Spectrometer Analysis? Optimize Accuracy With Proven Methods

Learn key XRF sample prep techniques like pressed pellets and fused beads to minimize errors and ensure reliable analysis for your lab.

What Are The Advantages Of Using Pressed Pellets For Xrf Analysis? Achieve Accurate And Reliable Sample Preparation

Discover how pressed pellets enhance XRF analysis by improving sample homogeneity, boosting signal intensity, and ensuring precise, reproducible results for better accuracy.

Why Is A Laboratory Hydraulic Press Essential For Solid Electrolyte Research? Bridge Simulation & Physical Reality

Learn how laboratory hydraulic presses eliminate porosity and ensure structural integrity to validate solid electrolyte theoretical simulations.

Why Is A Laboratory Press Required To Provide High Axial Pressure For Electrolyte Green Pellets? Achieve 300 Mpa Density

Learn why 300 MPa axial pressure is vital for electrolyte green pellets to eliminate porosity and maximize ionic conductivity in battery research.

Why Is Precise High-Pressure Control (400 Mpa) Vital For Alumix-431 Green Compacts? Enhance Densification And Zt

Learn how 400 MPa pressure ruptures oxide films and minimizes porosity in Alumix-431 to optimize electrical conductivity and material density.

Why Is A Laboratory Hydraulic Press Used In Forming Porous Titanium Green Compacts? Achieve High-Precision Density

Learn how laboratory hydraulic presses apply controlled pressure to create durable titanium green compacts for high-performance sintering.

What Critical Role Does A Laboratory Hydraulic Press Play In Asslb Molding? Optimize Solid-State Battery Interfaces

Learn how laboratory hydraulic presses enable All-Solid-State Lithium Battery (ASSLB) assembly by densifying materials and minimizing resistance.

What Is The Function Of A Laboratory Hydraulic Press For Srtio3? Enhancing Thermoelectric Material Performance

Learn how laboratory hydraulic presses optimize green density and structural integrity for SrTiO3 thermoelectric material preparation.

How Does A Laboratory Hydraulic Press Contribute To Ti-34Nb-6Sn Bone Implant Green Bodies? Achieve Bio-Matched Porosity

Learn how laboratory hydraulic presses enable precise density and porosity control for Ti-34Nb-6Sn alloy bone implants to match human bone properties.

What Is The Function Of A Laboratory Hydraulic Press For Bi2O3@Ti3C2 Electrodes? Precision Punching For Battery Tech

Learn how laboratory hydraulic presses and precision dies ensure consistent mass loading and burr-free edges in Bi2O3@Ti3C2 electrode preparation.

Why Is 150 Mpa Isostatic Pressure Critical For Garnet Electrolytes? Unlock High-Density Battery Green Bodies

Learn why 150 MPa isostatic pressure is essential for garnet-type electrolytes to eliminate pores, ensure uniformity, and optimize sintering.

How Is A Laboratory Hydraulic Press Used For Geopolymer Ftir Analysis? Master The Art Of Kbr Pellet Preparation

Learn how high-pressure laboratory hydraulic presses transform geopolymer powder into optical-grade KBr pellets for clear, accurate FTIR spectra.

What Is The Significance Of The Uniaxial Pressing Process Using A Lab Hydraulic Press? | Gdc20 Electrolyte Formation

Learn how uniaxial pressing serves as the critical primary forming step for GDC20 electrolyte green bodies, ensuring green strength and geometry.

Why Are Laboratory Hydraulic Presses Essential For Metal Polymer Conductors (Mpc)? Ensure Peak Composite Performance

Discover why precision compression molding is critical for MPCs, ensuring uniform conductivity and structural integrity in flexible electronics.

What Is The Role Of An Industrial Hydraulic Press In Opmf Extraction? Powering Oil Yield And Fiber Quality

Learn how industrial hydraulic presses facilitate mechanical separation, producing palm oil and high-quality mesocarp fibers for soil stabilization.

Why Is A Laboratory Hydraulic Press Used For Ni-Cr-W Based Composite Materials? Optimize Densification & Quality

Learn how laboratory hydraulic presses maximize green density and prevent cracking in Ni-Cr-W composites through 450 MPa pressure application.

Why Is A Laboratory-Grade Hydraulic Press Typically Required For Cebs? Achieve Peak Block Density & Durability

Learn why laboratory-grade hydraulic presses are vital for CEB preparation, ensuring high density, reduced porosity, and structural integrity.

What Is The Role Of A Laboratory Hydraulic Press In Srtao2N Green Body Preparation? Achieve High-Density Pellets

Learn how laboratory hydraulic presses transform SrTaO2N powders into durable green bodies through high-pressure compaction for dielectric research.

What Is The Purpose Of The Uniaxial Hydraulic Press Pre-Pressing Process? Master Cermet Green Body Preparation

Learn how uniaxial hydraulic pre-pressing transforms loose cermet powder into a cohesive green body with structural integrity and precise geometry.

What Is The Primary Function Of A Laboratory Hydraulic Press In Microplastic Preparation? Standardize Research Samples

Learn how laboratory hydraulic presses standardize raw plastics into uniform substrates for reproducible microplastic research and mechanical grinding.

How Does A Laboratory Hydraulic Press Facilitate The Cold Pressing Of Fe-Al Powders? Achieve 95% Green Density

Learn how hydraulic presses use uniaxial pressure to transform Fe-Al powders into high-density green compacts through plastic deformation.

What Is The Critical Function Of A Laboratory Hydraulic Press In Solid-State Battery Assembly? Achieve Peak Density

Learn how laboratory hydraulic presses eliminate voids and reduce interfacial resistance in bulk-type all-solid-state battery assembly.

Why Is Precise Pressure Control Necessary For Fluorescent Composite Films? Master Optical And Structural Integrity

Learn how precise pressure control (0.3–25 MPa) optimizes particle rearrangement and air removal for high-quality fluorescent composite films.

What Are The Primary Applications Of A Laboratory Hydraulic Press In The Characterization Of Li-Rich Cathode Materials?

Learn how hydraulic presses optimize XRD, XPS, and electrochemical testing for Lithium-rich Manganese cathodes through precision sample preparation.

What Processing Advantages Do Laboratory Hydraulic Presses Provide For Disulfide Epoxy Vitrimers? Expert Insights

Discover how laboratory hydraulic presses enable macro-flow and thermoplastic-like processing in disulfide epoxy vitrimers through heat and pressure.

What Is The Importance Of A Laboratory Hydraulic Press In Assb Assembly? Optimize Electrolyte Density And Conductivity

Discover how laboratory hydraulic presses eliminate voids, reduce grain boundary resistance, and prevent dendrites in solid-state battery research.

Why Is A Laboratory Hydraulic Press Used For The Initial Compacting Of Cr70Cu30 Powders? Maximize Green Body Density

Learn how laboratory hydraulic presses utilize 200 MPa of pressure to eliminate voids and create high-strength Cr70Cu30 green compacts for sintering.

How Does A Precision Laboratory Hydraulic Press Ensure Reproducibility? Master Your Rubber-To-Metal Bond Testing

Learn how precision laboratory presses eliminate variables in rubber-to-metal bonding through exact pressure, thermal control, and parallelism.

What Are The Primary Functions Of A Laboratory Hydraulic Press In The Precision Molding Of Infrared Glass?

Learn how laboratory hydraulic presses enable precision infrared glass molding through controlled force, displacement, and micro-morphology replication.

Why Is An Automatic Lab Press Critical For The Calendering Process Of High-Performance Electrodes? Boost Battery Efficiency

Learn why automatic lab presses are essential for electrode fabrication, optimizing density and porosity for high-performance battery research.

What Function Does A Laboratory Hydraulic Press Serve In The Forming Process Of Gd2O2S:tb Phosphor? Essential Pre-Pressing Guide

Learn how laboratory hydraulic presses create high-density green compacts and remove air to optimize Gd2O2S:Tb phosphor synthesis.

How Does High-Precision Pressure Control In A Lab Press Influence Kbr Pellet Quality For Hdmi Dye Research?

Discover how precise pressure control eliminates defects in KBr pellets, ensuring accurate ESIPT data for HDMI dyes.

How Does A High-Precision Laboratory Hydraulic Press Ensure The Quality Of Green Compacts? Boost Composite Performance

Learn how high-precision laboratory hydraulic presses ensure green compact quality through plastic deformation and porosity elimination.

Why Is A Heated Laboratory Hydraulic Press Required For Solid-State Batteries? Achieve Superior Ion Transport

Learn how heated hydraulic presses enable thermoplastic deformation and eliminate interfacial impedance in solid-state battery preparation.

What Is The Function Of A Laboratory Hydraulic Press In Pla/Pcl Samples? Standardize Material Research

Learn how laboratory hydraulic presses eliminate structural defects in PLA/PCL samples to create a zero-porosity baseline for research.

Why Is A High-Precision Laboratory Hydraulic Press Required For Biochar Samples? Ensure Data Validity And Consistency

Learn why precision density control is essential for biochar remediation samples to ensure accurate heavy metal barrier assessment and data.

Why Use High-Pressure Sample Prep For Xrf Shale Testing? Ensure Data Accuracy With Kintek Hydraulic Presses

Learn why a laboratory hydraulic press is essential for XRF shale analysis to eliminate grain size effects and ensure uniform sample density.

How Does A Laboratory Hydraulic Press Contribute To Ald Electrode Preparation? Optimize Architecture & Density

Learn how laboratory hydraulic presses optimize porosity, conductivity, and density for superior ALD composite electrode preparation.

How Are Hydraulic Presses Used In Powder Metallurgy And Composite Material Preparation? Master Advanced Densification

Learn how hydraulic presses drive powder metallurgy and composite manufacturing through precise compression, heat, and densification processes.

How Is A High-Precision Laboratory Hydraulic Press Utilized To Evaluate Fiber-Reinforced Polymer Concrete Performance?

Learn how precision hydraulic presses utilize controlled loading rates to quantify the mechanical integrity of fiber-reinforced polymer concrete.

Why Is 500 Mpa Pressure Required For Friction-Reducing Iron Alloys? Achieve High Green Density For Superior Performance

Learn why 500 MPa pressure is essential for high green density, particle bonding, and effective sintering in friction-reducing iron-based alloys.

What Is The Primary Function Of A Laboratory Hydraulic Press In Al2O3 Ceramic Plate Preparation? Achieve Peak Density

Learn how laboratory hydraulic presses create high-density Al2O3 green bodies by eliminating voids and ensuring particle contact for sintering.

What Role Does A Lab Hydraulic Press Play In Researching Squishy Granular Matter? Expert Insights Into Material Physics

Learn how lab hydraulic presses enable researchers to study extreme compression, non-linear deformation, and density in soft particulate systems.

What Is The Critical Role Of A Laboratory Hydraulic Press In Sofc Preparation? Build Superior Fuel Cell Substrates

Learn how laboratory hydraulic presses ensure structural integrity, gas impermeability, and high ionic conductivity in SOFC development.

How Does A Laboratory Hydraulic Press Improve Interface Performance? Optimize Solid-State Battery Cathode Layers

Learn how laboratory hydraulic presses enhance interface performance in solid-state batteries by maximizing contact and reducing impedance.

What Is The Function Of A Laboratory Hydraulic Press In Ni-50 Cr Alloy Powder Forming? Ensure Structural Integrity

Learn how laboratory hydraulic presses transform Ni-50 mass% Cr alloy powder into high-density green compacts by minimizing porosity and cracking.

How Does A Laboratory Hydraulic Press Contribute To The Initial Cold-Press Molding Of Ti3Alc2 Samples?

Learn how laboratory hydraulic presses maximize particle contact and densification for superior Ti3AlC2 sample synthesis and purity.

What Is The Function Of A Laboratory Hydraulic Press In The Determination Of Mor For Paddy Soil? Accurate Soil Analysis

Learn how laboratory hydraulic presses standardize soil samples for Modulus of Rupture (MOR) testing, ensuring data accuracy and uniformity.

How Does The Compaction Process Affect Active Material Bonding? Optimize Electrode Adhesion And Battery Life

Discover how high-pressure compaction creates mechanical anchors between active materials and current collectors to enhance battery performance.

How Does A Laboratory Hydraulic Press Contribute To Coffee Husk Brake Pad Molding? Optimize Your Biocomposite Strength

Learn how laboratory hydraulic presses consolidate coffee husk fibers into high-density brake pads through air expulsion and resin saturation.

Why Is A High-Pressure Laboratory Hydraulic Press Required For Pm Ti-3Al-2.5V? Achieve Maximum Green Density

Learn why 700 MPa pressure is essential for compacting Ti-3Al-2.5V powders to ensure mechanical interlocking, high density, and sintering success.

What Are The Design Advantages Of Hydraulic Mini Presses For Laboratories? Optimize Your Lab Space And Precision

Learn how hydraulic mini presses provide high-pressure sample preparation and repeatability in a compact, portable design for space-constrained labs.

What Are The Steps Involved In The Operation Of A Hydraulic Press? Master The 5 Stages Of Force Multiplication

Learn the 5 key stages of hydraulic press operation, from system initialization to force magnification and retraction, based on Pascal's Principle.

What Role Does A Laboratory Hydraulic Press Play In Enhancing Tellurium Nanowire Films? Boost Performance 18.3X

Learn how precision laboratory hydraulic presses utilize wet pressing to increase Tellurium nanowire film conductivity by 18.3 times.

What Features Of Modern Hydraulic Presses Ensure Precision? Master Repeatable Results With Digital Control

Learn how digital monitoring, programmable automation, and adjustable pressure settings ensure mechanical reproducibility in hydraulic presses.

What Are The General Applications Of Hydraulic Presses? From Industrial Manufacturing To Precision Laboratory Research

Explore the diverse uses of hydraulic presses, from heavy metal fabrication and waste recycling to precision laboratory sample preparation.

What Role Does A Lab Press Machine Play In The Heat Capacity Measurement Of Carborane-Based Mofs? Ensure Data Precision

Learn how lab presses prepare carborane-based MOF samples for heat capacity measurement by eliminating voids and optimizing thermal conductivity.

How Is A Laboratory Hydraulic Press Utilized In Xrf Soil Analysis? Master Sample Preparation For Precise Results

Learn how laboratory hydraulic presses create high-density soil pellets to ensure accuracy and reduce scattering in XRF spectroscopy analysis.

What Role Does A Laboratory Hydraulic Press Play In The Preparation Of Srlaalo4 Phosphor Ceramic Pellets?

Learn how laboratory hydraulic presses transform SrLaAlO4 powder into dense green bodies by maximizing particle contact and reducing diffusion distance.

What Role Does A Laboratory Hydraulic Press Play In Ucs Testing? Master Rock Mechanics With Precision Loading

Learn how laboratory hydraulic presses apply controlled axial loads to determine Uniaxial Compressive Strength (UCS) and peak stress in rock samples.

What Is The Role Of A Laboratory Hydraulic Press In The Preparation Of Elastomer Specimens? Ensure Reliable Rubber Data

Learn how a laboratory hydraulic press ensures uniform density, removes defects, and standardizes elastomer specimens for accurate mechanical testing.

What Function Does A Hydraulic Press Perform In Viscose Preparation? Master Chemical Ratios And Fiber Purity

Learn how laboratory hydraulic presses regulate the cellulose-to-alkali ratio and remove impurities during the viscose alkalization stage.