CLI Inspection Services

Book Online One Day Ahead

Get Quality Report On Next Day
+86 592 8212631
  • HOME
  • CLI
    • Pricing
    • What We Inspect ?
    • Coverage Area
    • CONTACT
      • Contact Us
      • Registering
    • POLICIES
      • Win Win Policy
    • SUBSCRIBERS
  • Benefits
    • Outsourcing Inspection
      • Why CLI
      • Set Up Own QC Team ?
      • Is Bigger, The Better ?
      • No Fake Testing Samples
      • Avoid Fake Inspection
      • Better Quality Lower Price
      • CONCEPTS
        • Quality Protocol
        • Quality Report
        • Why Recalls ?
        • Why Returns ?
    • ● Quality Cases
      • About Quality Cases
      • Brand Cases
      • Quality Mirror
      • Production Process
      • Quality Videos
    • ● In-Depth
  • ● MUST
    • Sample Review
    • Credit Investigation
    • Quick Factory Audit
    • Testing Consultancy Services
    • Pre Shipment Inspection
  • Services
    • Inspection
      • Pre Shipment Inspection
      • Initial Production Inspection
      • During Production Inspection
      • Container Loading Supervision
      • Random Sample Picking
      • Sample Review
    • Audit
      • Credit Investigation
      • Quick Factory Audit
      • Factory Audit
      • COMPR Factory Audit
      • Social Audit
    • Lab Testing
      • Testing Consultancy Services
      • Testing Scopes
      • Lab Partner
    • Order Follow Up
  • ● Voice Of Quality
    • Importers Benefits
      • Less Import Risk
      • Less FOB Cost
    • Online Seller/Shopper
    • Amazon FBA
    • Quality Cases
    • China Industry Chains
    • In-Depth
    • Lab Testing Consultancy
  • BLOG

How Many Factors do You Know that Affect the Quality of Meltblown Cloth?

Home » ● Voice Of Quality » How Many Factors do You Know that Affect the Quality of Meltblown Cloth?

By Scott Chin • 06/3 @ 7:49 • No Comments

Spread the love

Under the influence of the new crown pneumonia, the global supply of masks is in short supply, and meltblown cloth is also rising. What are the meltblown cloth quality influencing factors as the core material of the mask? Today, through the relevant process of meltblown cloth, the five major factors affecting the quality of meltblown cloth will be introduced in detail.

MFI of polymer raw materials

MFI is the melt flow index, or melt flow index, which refers to a numerical value indicating the flow performance of plastic materials during processing. As the best barrier layer for masks, meltblown cloth is a very fine material with many crisscross microfibers stacked in random directions. Therefore, MFI is meltblown cloth quality influencing factors, that is to say, the higher MFI, the finer the filaments drawn during melt-blown processing, the better the filtration performance.

Hot air flow velocity

In the process of meltblown cloth production, the hot air velocity is also one of meltblown cloth quality influencing factors. Under the same temperature, screw speed and receiving distance (DCD) and other conditions, the faster the hot air speed, the smaller the fiber diameter, the nonwoven fabric feels gradually softer, and the more fibers are entangled, resulting in a denser and smoother web. Strength increased.

Hot air injection angle

The reason why the hot air spray angle becomes meltblown cloth quality influencing factors is because when the spray angle is small, it can promote the fine flow to form parallel fiber bundles, resulting in poor uniformity of the nonwoven fabric. If the angle tends to 90 °, a highly dispersed and turbulent air flow will be generated, which is conducive to the random distribution of fibers on the screen, and the resulting melt-blown cloth has good anisotropy.

Receiving Distance (DCD)

Too long acceptance distance will lead to the decrease of longitudinal and transverse strength and bending strength, and the fluffy hand feeling of non-woven fabrics, which will lead to the decrease of  meltblown fabric filtration efficiency and filtration resistance of meltblown fabrics in the process, thus leading to the decrease of meltblown fabric quality.

Screw extrusion speed

Since the screw extrusion speed is also an important factor affecting the quality of meltblown cloth, under the condition of constant temperature, the screw extrusion speed should be kept within a certain range:

Before a certain critical point, the faster the extrusion speed, the higher the basis weight of meltblown cloth and the greater the strength. When the critical value is exceeded, the strength of melt-blown cloth decreases, especially when MFI is more than 1000, which may be due to insufficient drawing of filament and serious filament caused by too high extrusion rate, thus the bonding fiber on cloth surface decreases and the quality of melt-blown cloth decreases.

The above is the meltblown cloth quality influencing factors in the production process of the melt-blown cloth factory in China. Only by controlling each process point that affects the quality of the meltblown cloth, can high-quality and high-quality meltblown cloth be produced.

This article is an original article for CLI Inspection, who is committed to providing high-quality product inspection technology and know-how sharing for global importers and retailers to make imports safer.

All rights reserved. The contents of this website provided by CLI Inspection may not be reproduced or used without express permission.

For reprint, please contact with CLI Inspection, thank you.

Related Posts:

  • Where Will Chinese Mask Manufacturers Go?Where Will Chinese Mask Manufacturers Go?
  • Chaos in Meltblown Fabric Industry ChainChaos in Meltblown Fabric Industry Chain
  • What are the Types of Masks? How to Wear Masks Correctly!What are the Types of Masks? How to Wear Masks Correctly!
  • Full Analysis on Production Process and Equipment of Meltblown Fabric in ChinaFull Analysis on Production Process and Equipment of…
Categories:● Voice Of Quality Quality Cases Quality Mirror
Tags:2739 Meltblown Cloth Quality Influencing Factors

Scott Chin

Senior professionals in the field of quality inspection are committed to finding and sharing valuable experiences.

说点什么 Please Input Your Comments !

avatar
This comment form is under antispam protection
avatar
This comment form is under antispam protection
  Subscribe  
提醒

SEARCH

Email Subscribers

Loading

Recent Posts

  • This is How Fitness Equipment Developed 01/21 @ 6:57
  • Challenges of Supply Chain Management in China for Importers 01/11 @ 8:48
  • What importers need to pay attention to when sourcing new factories 01/4 @ 9:14
  • Do You Know Supplier Quality Management? 12/29 @ 8:18
  • The Production of Sanitizer Is Not Complicated 12/24 @ 9:24

Recent Comments

  • What Are the Challenges of Supply Chain Management in China? | CLI Inspection Services发表在《It’s 2020, Are You Still Hesitating Whether to Use a Third-Party Inspection?》
  • How to Manage the Quality of Chinese Suppliers? | CLI Inspection Services发表在《How does Sofa Bed get Better and Better?》
  • Can Sanitizer Production in China Continue to Develop | CLI Inspection Services发表在《Chaos in Meltblown Fabric Industry Chain》
  • Suggestions for Avoiding Kickbacks by Purchasers | CLI Inspection Services发表在《Why it’s Unreasonable to Say That the Importer’s Procurement Staff Also Does Quality Inspection》
  • Difficulties in the Management of Inspectors in China Sourcing Office | CLI Inspection Services发表在《It’s 2020, Are You Still Hesitating Whether to Use a Third-Party Inspection?》

Monthly Files

Catalogue

  • ● Voice Of Quality
  • In-Depth
  • Less Import Risk
  • Production Process
  • Quality Cases
  • Quality Mirror

Tags

0837 1224 2459 2539 2543 2545 2547 2548 2549 2551 2565 2578 2579 2580 2582 2595 2596 2607 2620 2624 Chain inspection clothing quality control cord plug electrical safety Garment factory production management glassware quality inspection,2583 Hair dryer quality inspection In-process quality inspection label inspection,2550 Mattress structural inspection Needle detector test Packaging inspection Paper cup craft inspection paper mill audit,2581 Plastic clip quality check plastic quality control Product use test Quality check Quality control check Shoes quality control,2584 stainless steel quality control Stock shoes quality inspection Thermos cup inspection tightness test Toothbrush defect check Wooden floor inspection

BLOG

  • This is How Fitness Equipment Developed 01/21 @ 6:57
  • Challenges of Supply Chain Management in China for Importers 01/11 @ 8:48
  • What importers need to pay attention to when sourcing new factories 01/4 @ 9:14
  • Do You Know Supplier Quality Management? 12/29 @ 8:18

Email Subscribers

Loading

Learn More

  • Outsourcing Inspection
  • Avoid Fake Testing Samples
  • Avoid Fake Inspection
  • Better Quality Lower Prices
  • Coverage Area

Special Sections

  • Quality Cases
  • Amazon FBA
  • In-Depth
  • Contact Us
© 2002 CLI Inspection | Make Imports Safer
  • HOME
  • CLI
    • Pricing
    • What We Inspect ?
    • Coverage Area
    • CONTACT
      • Contact Us
      • Registering
    • POLICIES
      • Win Win Policy
    • SUBSCRIBERS
  • Benefits
    • Outsourcing Inspection
      • Why CLI
      • Set Up Own QC Team ?
      • Is Bigger, The Better ?
      • No Fake Testing Samples
      • Avoid Fake Inspection
      • Better Quality Lower Price
      • CONCEPTS
        • Quality Protocol
        • Quality Report
        • Why Recalls ?
        • Why Returns ?
    • ● Quality Cases
      • About Quality Cases
      • Brand Cases
      • Quality Mirror
      • Production Process
      • Quality Videos
    • ● In-Depth
  • ● MUST
    • Sample Review
    • Credit Investigation
    • Quick Factory Audit
    • Testing Consultancy Services
    • Pre Shipment Inspection
  • Services
    • Inspection
      • Pre Shipment Inspection
      • Initial Production Inspection
      • During Production Inspection
      • Container Loading Supervision
      • Random Sample Picking
      • Sample Review
    • Audit
      • Credit Investigation
      • Quick Factory Audit
      • Factory Audit
      • COMPR Factory Audit
      • Social Audit
    • Lab Testing
      • Testing Consultancy Services
      • Testing Scopes
      • Lab Partner
    • Order Follow Up
  • ● Voice Of Quality
    • Importers Benefits
      • Less Import Risk
      • Less FOB Cost
    • Online Seller/Shopper
    • Amazon FBA
    • Quality Cases
    • China Industry Chains
    • In-Depth
    • Lab Testing Consultancy
  • BLOG
wpDiscuz