Twin Rivers Paper Blog

Eliminate the Fear of Reversion

(15 June 2017)


Are you looking for ways to impact the bottom line on a high volume publication? Consider your fiber content. Historically publishers only used Freesheet papers for higher quality applications because of the reversion, or yellowing, of Groundwood papers.

Manufacturing advancements created a new category of paper: Hybrid. 


The market demanded more options, and the paper industry knew there had to be a way to combine the two fiber types to deliver a blended product that provided cost savings while minimizing the amount of reversion. Exploring bleaching techniques, chemistry solutions and various ratios of fiber content and paper formulations, paper manufacturers created a Hybrid option that blended freesheet and groundwood content to optimize the best attributes of each fiber type. The result is a value alternative to freesheet that meets quality expectations without the reversion associated with 100% groundwood papers.


As a manufacturer that pioneered the development of the Hybrid category, we understand the importance of testing in our research and development process. In-house testing, our Hybrid paper reverted 50% less than the 100% groundwood competitors. A significant quality gap closed and publishers now had another paper option to add to their portfolio. 

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Understanding the legacy of skepticism surrounding groundwood papers and reversion, we created a do-it-yourself test. Order our Reversion Challenge Kit and you will get three paper samples (two Groundwood and one Hybrid). You are asked to expose the paper to a consistent source of light for 14 days. At the end of the test period, you will see for yourself the inherent stability of the new Hybrid formulation. 

BONUS: Take our quiz and see how well you know your paper fiber!


Paper manufacturing is a lot like cooking; the ingredients have a big impact on the overall cost and quality of the finished product. When we look at fiber content, there are three basic types: Freesheet, Groundwood and Hybrid. Each has positives and negatives associated with its attributes. Take the test and see how well you know your fiber types!


Tags: Hybrid Papers, Lightweight Publishing Papers, Freesheet Papers, Paper Innovation, Market Innovation, Reversion, Blended Papers