Ways On How To Achieve Sustainable Digital Printing

By Joshua Foster


Environmental conservation is an integral part of any business today. Consumers are increasingly giving preference to businesses that appear to be mindful of the environment and shunning those whose actions degrade it. For this reason, many industries appear to be realigning their processes to make them more sustainable. The printing industry is among those that are making radical changes. There are several ways of adopting sustainable digital printing.

Ink is an important component of any printing process. Traditional inks are derived from petroleum and have a high amount of volatile organic compounds (VOCs). These compounds react with atmospheric gasses and lead to formation of smog. Fortunately, environmental-friendly inks that are vegetable based and biodegradable have now been developed. These natural alternatives have the same range of colors as the petroleum based types.

Apart from the volatile compounds, the inks also contain some heavy metals. Examples of these metals include mercury, chromium, nickel, selenium and cadmium among others. When they are released through the effluent, they contaminate soil and water sources which in turn poses a danger to plant and animal life. This challenge has been addressed by manufacturing natural inks that have very little of these metals or none at all.

Using recycled paper is beneficial to the environment as well as the business. Whereas virgin paper has to be produced directly from trees, recycled paper is the product of waste paper. This means that the need to cut trees is reduced. The cost of purchasing and processing recycled paper is lower than what is seen with virgin paper. Another advantage is that the effluent that is produced by waste paper is less.

Recycling and reusing raw materials can be extended to involve other inputs other than paper. Water, a key component in the process of printing, is among the easiest to reuse. Studies have indicated that more than two thirds of the water being used in the first cycle can be reused in the second cycle. Ink and aluminum plates can also be reused in subsequent cycles.

Energy efficiency should be emphasized in all the departments. If you have any old, inefficient pieces of equipment, replace them with newer ones that will give you a higher output of products for every unit of electricity used. At the same time, work progressively to reduce the use of petroleum based fuels and hydropower and increase that of wind, solar and other sources of energy that are renewable.

Sustainability is also being adopted in fabric printing processes. One of the areas that have experienced changes is the pre-treatment stage. During this stage, urea and other chemicals are usually used. Unfortunately, urea breaks down to release carbon dioxide in the environment, a major greenhouse gas. Today, there are newer methods of pre-treating fabrics using a special type of foam that does not contain urea.

Sustainable printing is associated with numerous benefits. The most important is that the environment will be conserved. The specific benefit to the business is that operational costs are significantly lowered which may help increase the profit margins. For the consumer, the benefit is that the reduced operational costs may be passed on to them in the form of more affordable products.




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