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Why Should We Be Concerned About Trelleborg Printing Blankets?

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During the offset printing equipment and supplies process, a rubber print blanket is used. It is wrapped around a print cylinder and used to transfer ink from the printing surface to the paper for its primary use in print.

The Berlin-based project Material Mafia gathers these commercial waste items. It processes data and then saves them for later use. Several factors make rubber-printing sheets from offset printing promising in this respect. Initially, a significant amount of material is accumulated. 

According to the latest projections, 900 – 1900 sheets are disposed of in every print shop annually, which are in great shape. It is also incredibly durable and may be used in the clothing and accessory industries and the design of homes and workplaces. See the presentation for further details on the quality of the content.

Experts' Advice And Insights

Including the practical specialists, who have established the first business case for the printed blankets, we spoke about obstacles and the potential for material reuse or upcycling in creating the new goods. The companies, Fairbag and Roterfaden, displayed the creation of bags and other accessories. The ink remains, and the substance is no longer harmful after cleaning.

Seek Out New Opportunities

That substance has a plethora of untapped potential. Together with our team of designers, artists and architects, we began to examine the material on the second day of our workshop. In the end, we learned many new and intriguing things.

We want to draw their attention with our project to those in the flooring or leather-substituting materials businesses. In the circular economy, synergies are maximized, and this is an excellent material with much unknown potential.

Offset Printing And The Blanket

The printing equipment and supplies had much to learn as they transitioned from letterpress to offset printing. The offset blanket is a crucial part of the printing process that should be examined in further detail. There are various qualities of the offset blanket, including:

  • Streak-free, streak-free transfer of the ink in both solid and dot form
  • When printing blanket-to-blanket, the impression cylinder.

If the trelleborg printing blankets fails to meet these requirements, it will have to be dismantled in the drying process. If it is not up to the task of handling a wide range of materials and printing in various formats at a high rate, it will eventually fail. The offset blanket's functions bore little relation to the letterpress counterpart's functions. As a result, its qualities are distinct.

The offset blankets have acquired a high level of development to accomplish their tasks. High-quality textiles and solvent-resistant rubber compounds are used in constructing the carcass. Despite its comparatively lengthy lifespan, it falls short of the letterpress blankets in terms of durability. Even yet, some blankets achieve 16 million impressions on the press before they are retired from production. Most blankets, however, are changed because of web breakage.

There is a variety of blanket surfaces available for purchase. A caste surface, a spread surface, and a ground surface (all of which have been buffed) are the three options. Never use more than one of these on a single newspaper press or in a single folder simultaneously. Equipment feeding into other equipment for four or spot-color work should have blankets from the same brand and the same sort of surface, and it should be understood.

The carcass of most newspaper blankets is constructed with a compressible layer. It's essentially a rubber layer with air trapped within. There are two types of rubber structures: open cell and closed cell, and each of these constructions has its own set of advantages and disadvantages. As hinted by their names, open-cell layers are made up of air cells that connect, similar to a sponge. Individual cells make of closed-cell layers. For a certain amount of time, either kind may be compressed and smashed, but the closed cellular structure has the benefit of lasting longer.

However, despite the various benefits of utilizing compressible blankets, their primary benefits remains eliminating traditional blankets' “bulge” in the printing zones (See Figure 1). High packing levels may be used for excellent solids without generating an excessive increase in dots. It is easier to pack and has a faster gauge recovery following passing through the plate and paper nips with the compressible printing machine cylinder jacket than with standard blankets. The blanket will not properly take up or transfer ink if the recovery time is too long. This is where the closed-cell compressible blanket shines.

Care must be taken to ensure that the blanket is not too high over the shoulders of the carriers. The thickness of blankets, plates, and packing materials must be measured to ensure the product's safety. One of these items may lead to a blanket that's too or too little filling. In addition to blanket producers and distributors making errors, the thickness of each blanket should be measured. In other words, do not regard the blanket's gauge as gospel. If you are utilizing glued-on packing materials, this is very crucial. 


When utilizing such packing materials, mention the proper printing machine cylinder jacket gauge as well. It must be said that even the greatest blanket producers have gauge variations in their goods. In addition, blanket micrometers are essential. Micrometers used by machinists may not be appropriate.



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