Difference between revisions of "Technology for paper/printing? How much pollution?"

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<b>INK</b>
With approximately 62,355 firms and sales of $210 billion annually, the printing industry is a significant contributor to the overall U.S. economy. The printing industry is also an important environmental actor in several major areas, such as use of paper (about 8 percent of all the wood cut down worldwide is used for paper production, much of which is used in printing), use of hazardous materials in printing inks, and production of volatile organic compound (VOC) emissions from cleaning solvents used in the printing process. Regulatory standards and social pressures are requiring printing firms to reduce their use of resources and emissions of hazardous and other substances. Doing this can be costly. In 1994, for example, the printing and publishing industry reported spending over $57 million on pollution control equipment alone.  
Some inks present health and environmental hazards because they may contain volatile organic compounds (VOCs) which contribute to air pollution and lead to the formation of smog, and because they may contain hazardous constituents such as heavy metals or toxic stabilizers. Product substitution and/or effective ink management can help reduce risk of exposure to these hazards, and can reduce waste.  
 
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Many in industry and government agree that preventing pollution tends to be more efficient, from an economic and environmental perspective, than controlling it after the fact. Pollution prevention is accomplished through changes in production, operation, and raw materials use, in contrast to pollution control, which is accomplished by the adoption of emissions-abatement or waste treatment technologies. Indeed, many lithographic printing firms have achieved significant reductions in emissions and regulatory costs through the implementation of pollution prevention. Adoption of alcohol-free fountain solutions, solvent recovery and reuse, non- or low-VOC inks, and non- or low-VOC blanket and roller washes are but a few examples of the kinds of process changes implemented by this industry that have led to significant environmental improvements.
1. Have you considered the following alternative inking systems: <br>
heat-reactive inks <br>
UV-cured ink systems <br>
electron-beam-dried ink systems <br>
2. Have you considered less hazardous inks such as soy- and water-based inks (for non-lithographic printers), and inks which do not contain metals? <br>
3. Are ink fountains filled according to expected needs, as opposed to routine filling? <br>
4. Are ink containers properly sealed after use? <br>
5. Do you schedule, when possible, similar-color jobs simultaneously to reduce waste generation between cleanup and start of next run? <br>
6. Do you recycle or reuse old inks for marketing as "house colors" (Note that the quality of inks mixed with a variety of additives may be affected over time.) <br>
7. Have you considered computer ink blending programs to minimize waste of special, uncommon inks? (This option is more appropriate for larger printers). <br>
8. Have you considered either on-site or off-site ink recycling? (Typically, very large volumes of ink are needed to make this option feasible.) <br>
9. Do you prevent ink from drying or skinning inside the fountain? Good operation practices such as keeping ink containers sealed and contents leveled, as well as anti-skinning sprays can help reduce waste ink.<br>

Revision as of 20:57, 7 May 2009

With approximately 62,355 firms and sales of $210 billion annually, the printing industry is a significant contributor to the overall U.S. economy. The printing industry is also an important environmental actor in several major areas, such as use of paper (about 8 percent of all the wood cut down worldwide is used for paper production, much of which is used in printing), use of hazardous materials in printing inks, and production of volatile organic compound (VOC) emissions from cleaning solvents used in the printing process. Regulatory standards and social pressures are requiring printing firms to reduce their use of resources and emissions of hazardous and other substances. Doing this can be costly. In 1994, for example, the printing and publishing industry reported spending over $57 million on pollution control equipment alone.

Many in industry and government agree that preventing pollution tends to be more efficient, from an economic and environmental perspective, than controlling it after the fact. Pollution prevention is accomplished through changes in production, operation, and raw materials use, in contrast to pollution control, which is accomplished by the adoption of emissions-abatement or waste treatment technologies. Indeed, many lithographic printing firms have achieved significant reductions in emissions and regulatory costs through the implementation of pollution prevention. Adoption of alcohol-free fountain solutions, solvent recovery and reuse, non- or low-VOC inks, and non- or low-VOC blanket and roller washes are but a few examples of the kinds of process changes implemented by this industry that have led to significant environmental improvements.