Filtration

The Innovation Behind Water Purity and Human Health

Dow Health and Hygiene - FiltrationEvery year, close to 1.8 million children die as a result of diseases caused by unclean water.¹ The Health & Hygiene business at Dow is constantly working on the latest nonwoven material innovations to address these and other concerns.

With an ever-increasing focus on water and air purity, as well as a variety of other purification needs, it's no wonder the filtration market segment is experiencing such tremendous growth. And, Dow technology and innovative thinking are behind many of today's (and tomorrow's) filtration applications.

 

Dow Knows Filter Technology
Dow's nonwoven technologies play a major role in liquid and air filtration - from High Efficiency Particulate Air (HEPA) filters in bagless vacuums to consumer and industrial water filters, to blood filters in the medical field.

Dow's innovative materials help enable many of the key differentiating properties in filtration. To increase filtration efficiency, Dow offers bi-component polymer combinations for increased surface area; high melt index resins and ethylene octane resins for finer fibers; and froth foams for gradient properties. Other properties include heat resistance, made possible by crosslinked polyolefins; filter integrity from elastic nonwovens; and processability due to photo crosslinking capabilities.

Plus, Dow is a leading user of filtration as a vital part of operations and production. We are experienced in solids handling, separations, cartridge construction, and more; so we understand what's important for filtration performance.

 

A Look Ahead
Dow is constantly developing new technologies - for today's needs and tomorrow's. Here are just a few examples of the filtration needs on the horizon:

  • Fiber diameter independent of cost
  • Non-fouling, non-plugging, or self-cleaning filters
  • "Ovenless" manufacturing without finishing steps
  • Regenerable adsorbent and anti-microbial filters
  • Multi-functional filters for particles and heat
  • Decoupled flow and pressure drop
  • Form-in place to replace pleating
  • Purely surface baghouse filters
  • Self-supporting fine fibers
  • Absolute rated filters


 



¹U.N. Development Program