Nonwovens in Protective Apparel - intersecexpo.com · Industrial Medical Automotive Filtration...

Industrial Medical Automotive Filtration Apparel Composites

Nonwovens in Protective Apparel Increasing performance and comfort

Techtextil Middle East Symposium 19 – 20 January 2014

Dubai

Christian Rosenkrantz de lasson [email protected]


What are Spunlaced Nonwovens?

Spunlaced Nonwovens Used in Protective Apparel

Advantages of the Technology

Norafin Komanda®

Questions

Agenda


What are Spunlaced Nonwovens?


Main Functions

The basic principle of the spunlacing process consists of passing a web beneath a series of high pressure, small diameter, water jets. The typical diameter for the water jets is

between 100 and 120 micron, of which there are several thousand individual jets across the width of the machine.

As the web passes beneath the water jets, the water jets penetrate through the material, and rebound back due to the support element , this combined action causing the individual fibers to become entangled together to form a dimensionally stable product.

The process consists of multiple nozzles or injectors placed sequentially, typically between 5 and 10 in a flat or rotary configuration, in such a way that both surfaces of the material are entangled.

By changing the structure of the supporting element, apertures, patterns, or, 3-dimensional structures can be permanently imparted into the material.

Carded web

Injector

Water Jet

Support Element

Spunlaced web

Spunlace Process


The spunlace process offers a significantly simplified process route….

Traditional ‘Woven’ Textile

Opening / Blending

Carding / Sliver

Drawing

Spinning

Winding

Warping / Beaming

Sizing

Drawing-in / Looming

Weaving

De-sizing

Scouring / Bleaching

Dyeing / Printing

Winding

Garment Converting

Nonwoven Spunlace

Opening / Blending

Carding

Spunlacing

Winding / Slitting

Dyeing / Printing

Garment Converting

Process Step Comparison


Single Layer ‘Basic’ Structure Dual Layer Structure

Different fiber types / blends in each layer

Tri-Layer Structure Two carded web layers Reinforced with warp knit scrim

Tri-Layer Structure Three carded web layers

Examples Product Structures


Compared to the traditional textile process, the spunlace process is;

State-of-the art technology

Fiber to fabric in one production step

Significantly higher in productivity

Cost reduction potential

Inherently more flexible Greater product capability per machine Quicker change over

Enhanced product options / structures

Ability to engineer specific performance parameters

Composite constructions in a single production step

Process Advantages


Spunlaced nonwovens used in protective apparel

Advantages of the technology


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Protective Apparel – Insulation Layers


Product characteristics specialty nonwovens offer Improved wearing comfort and insulation properties thanks to the nonwoven specific surface and the air trapped in the fabric Enhanced TPP rating (= thermal protection performance to measure the heat resistance) 7 – 10% higher than competitive products Good pilling resistance maintaining integrity after laundering and abrasion Soft and lightweight material

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3D Performance Fabric Standard Product

TPP Rating

3D Performance Fabric Standard Product

TPP rating measured with Norafin’s 3D Performance fabric

Spunlaced Nonwovens as Insulation Layers


Spunlaced nonwovens used in protective apparel

Norafin Komanda®


Norafin Komanda®

Traditional textiles have historically been the preferred materials of choice for protective apparel applications. Proven performance / durability Readily available No viable alternative

New demands in protection levels require new technology solutions Increasingly harder for traditional textiles to meet these demands Increasing demands for comfortable solutions

Nonwoven textiles have always had the potential to meet both the demands of today and tomorrow Main issues have been that they are not suitable for apparel applications due to poor

durability and comfort. To date, their use has been restricted to single or very limited-use applications

Recent internal developments in our technologies have allowed us to develop a range of materials that Give true multi-use capability Offer a high performance alternative to traditional textiles in today’s applications The flexibility to adapt and innovate to meet the needs of the future


Compared to current materials, the Norafin Komanda® range of spunlaced engineered nonwovens are characterized by Improved heat, flame and associated performance attributes

Thermal insulation Arc flash protection Flash fire protection

Lighter basis weight, yielding the potential for; Improved comfort Reduced heat stress Improved breathability Improved air permeability

Excellent abrasion resistance Traditional textile like characteristics Wash durable

Even increasing thermal performance after washing

Performance Advantages


picture: www.readynowsafety.com

Arc Flash Incidents – ALARMING FACTS

according to an American research institute, 5 – 10 arc flash explosions occur in electric equipment in the USA every day

for Europe, between 1,000 – 3,000 electrical accidents at work are reported to the authorities every year

serious injuries can be caused that require treatment in a special burn center

picture: www.arcflash.co.nz

Arc Flash Accidents


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picture: www.electricityforum.com

picture: www.electricityforum.com

Arc Flash Accidents


Arc Flash Performance


Wash Durability A truly re-usable nonwoven structure Garment lifecycle reflects usage lifecycle

Comparative wash testing indicates: Material will meet 100 x wash requirement of NFPA 2112 for FR fabrics Conservative expectations are for a garment life between 50 and 75 wash cycles. Samples have been washed through 150 home laundry cycles.

First Spunlaced Nonwovens used as true alternative to traditional Textiles - Garments made of Nonwovens

Wash Durability


THANK YOU Questions?

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