Offset paper is a versatile type of paper that is commonly used in commercial printing, books, magazines, and catalogs. It is available in a wide range of weights and sizes, making it suitable for various end uses. While 85% of offset papers are sold in sheets, they can also be found in reel form.

One of the key characteristics of offset paper is its fiber furnish, which is made up of over 90% chemical pulp. The total pigment content in offset paper can vary from 0% to 25%. This flexibility allows for different levels of opacity and brightness in the paper. In fact, the ISO brightness of offset paper is typically above 80%, ensuring a high-quality print result.

The basis weight range of offset paper is quite extensive, ranging from 40 to 300 g/m2. This means that offset paper can be used for everything from lightweight publications to heavy-duty catalog printing. Furthermore, the surface smoothness of offset paper can be adjusted to suit the specific requirements of the end use. This ensures that the paper performs optimally in different printing processes.

Over time, the development of offset papers has focused on improving brightness and opacity. This has resulted in paper with better print quality and enhanced visuals. Additionally, offset papers need to have strong surfaces and a low linting tendency. These properties ensure that the paper can withstand the rigors of printing without tearing or leaving behind lint particles.

To enhance the surface properties of offset paper, starch is typically used for sizing. This helps to improve the paper’s strength and durability. The amount of starch applied to the paper is usually between 0.5 to 2 g/m2 per side. This sizing process contributes to the overall quality and performance of offset paper.

In recent years, additive multilayering technology has shown promising results in the development of offset papers with higher filler content. This technology allows for the incorporation of more fillers in the paper, which can improve its opacity and brightness. These advancements in offset paper production have further expanded its potential applications in the printing industry.

In conclusion, offset paper is a versatile option for commercial printing, books, magazines, and catalogs. Its wide range of weights, sizes, and surface properties make it suitable for various printing processes. The ongoing development of offset papers has led to improvements in brightness, opacity, and overall print quality. With its strong surface and low linting tendency, offset paper continues to be a popular choice for high-quality printing.