How Sustainable Digital Printing That Is Eco Friendly Is Done
Global warming and climate change are two topics which have been discussed widely in the last decade. There have been rigorous campaigns on the need to conserve our environment. Consequently, the world is now embracing technology which preserves Mother Nature. There are many areas which can be improved to achieve this including grading, pattern making and cutting.
Digital printing that is eco friendly is aimed at not just conserving the environment but also increasing efficiency in the process.
The use of raw materials which have fewer contaminants among the strategies that are now used. For many years, chromium has been a major component of the lacquers that are used to make screens. The chromium is often washed into the environment during the washing process. Its presence in the environment leads to pollution of the soil and water sources. As a result the industry is now moving away from lacquers which have less of the element.
The other strategy which is being encouraged is the use of efficient waste water treatment systems. Such systems not only help in the conservation efforts but are also important in reducing on operating costs for a given firm. Studies have shown that close to 65% of water can be recycled and reused by the most efficient of these systems. Recycled water is used mainly in the washing of pumps and printer blankets.
There are two types of machines which are used for printing; conventional and the digital. These two can be restructured in a manner which helps to optimise energy, ink and water. Conservation of energy is done by reducing the loss of thermal energy in the drying chambers. Using radial extraction methods in the process helps to generate heat which can be channelled to the drying stage. Whenever this happens, close to 25% of energy is saved.
Many of the printing techniques in current use require the pre-treatment of media before the creation of impressions. Urea has been used for this purpose for many years. One of the major disadvantages of this compound is that it leads to the production of high levels of carbon dioxide during streaming. Additionally a lot of water is required to wash off the residual urea. The adoption of a special type of foam has helped reduce the associated pollution and wastage of water.
Another commonly used option is what is known as digital engraving. This technique utilises laser to create images on various media. The main advantages include the fact that the turnaround time is shorter. Other benefits include less energy and water is needed compared to other methods.
There are a number of alternatives to engraving in current use. Pigments are now the most popular choice. These have many advantages over the other methods used. For instance, they are suitable for virtually all types of media. Since they do not require pre-treatment or post-treatment, the water and energy requirement are less.
To successfully adopt printing techniques which are eco-friendly, legal requirements must be put into perspective. Ensure that you make yourself conversant with the rules and regulations created within your specific location. Staying informed will help get the latest developments in the sector which will in turn help you not only help in conserving our natural resources but also increase the efficiency of your operations.
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