Our Totally Chlorine Free (TCF) papers have been bleached without any chlorine - or have not been bleached at all.  All of our cotton papers, for example, are TCF. 

Another common bleaching process in the paper industry is Elemental Chlorine Free (ECF), which is a bleaching agent that utilizes a pollution prevention technology to eliminate persistent, bioaccumulative toxic substances in mill waste-water.  The bleaching agent is a derivative of chlorine called chlorine dioxide, which is less harmful to the environment than elemental chlorine.  What this ensures is an environmentally safe method to bleach the paper without the harmful chemical effects of chlorine.

For more information on Chlorine Free paper, please visit this informative website: http://www.ciwmb.ca.gov/Paper/ChlorineFree/Default.htm