Nonwovens Introduction

SKU: C-905Duration: 26 Minutes Certificate Included

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Language:  English

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Language:  English

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Course Details

Specs

Training Time: 26 minutes

Compatibility: Desktop, Tablet, Phone

Based on: Industry Standards and Best Practices

Languages: English

Nonwoven fabrics are broadly defined as sheet or web structures bonded together by mechanical entanglement, chemical, thermal, or other means. Unlike traditional fabrics, the fibers are not first converted to yarn and then woven or knitted into a fabric. Instead, a porous sheet or web is made directly from separate fibers. Nonwovens can, however, be designed to mimic woven and knitted fabrics, as well as many other materials. This module introduces the topic of nonwovens by comparing them with woven fabrics. That is followed by a brief discussion of nonwovens manufacturing techniques, history and product applications.

Learning Objectives

At the end of this module, you will be able to:

  • Describe how a traditional woven fabric is made
  • Describe two methods of making a woven fabric
  • List the two basic process steps to make a nonwoven
  • List the three types of web forming used to manufacture nonwovens
  • List the three types of web bonding used to manufacture nonwovens
  • Describe why nonwoven materials fulfill such a broad range of end uses
  • List some of the categories of nonwoven products

Key Questions

The following key questions are answered in this module:

Why do natural fibers stick together when they are spun?
Natural fibers have rough surfaces which interlock as they are aligned and pulled together into a yarn.

What is the earliest example of a nonwoven material?
Felt is the earliest example of a nonwoven material. Felt is a fabric made of animal sourced fibers such as wool that are wetted and worked together to create an entangled mat.

What is the one of the reasons the market for nonwoven materials has grown?
The many materials and processes that are used to manufacture nonwovens create the flexibility to make a wide variety of cost effective end products.

What processes are used to create polymer based nonwovens?
Synthetic polymers are melted and extruded into fibers using the "spunbond" and "meltblown" processes.

What are the two basic manufacturing steps used to create a nonwoven material?
Whether synthetic or natural fibers are used, fibers must be "formed" into sheet and then "bonded" together to create a final product.

Sample Video Transcript

Below is a transcript of the video sample provided for this module:

The success of nonwovens is largely due to the fact that they are not bound by the techniques of traditional fabric-making. The ability to modify and customize each of the manufacturing steps creates the opportunity to engineer fabrics which are optimized for particular applications. Nonwoven fabrics are engineered fabrics, which can be designed to be lightweight and disposable, baby wipes, or to be heavyweight and meant to last for decades, highway underlayment. Virtually every attribute of a nonwoven product can be modified through the choice of raw materials and manufacturing techniques, often while achieving a good balance between product use life and cost.

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