Ultralight weight coated papers, also known as ULWC or low lightweight papers, are gaining popularity in the printing industry. These papers are commonly used in Europe for rotogravure printed catalogs and in the United States for offset printed magazines. With a basis weight range of 35 to 48 g/m2, ULWC papers are known for their lightweight and thin nature.

One of the key factors that make ULWC papers desirable is their adequate opacity. Opacity refers to the ability of a paper to prevent show-through or strike-through, where the ink from one side of the paper seeps through to the other. This is particularly important in the United States, where offset printed magazines are widely used. ULWC papers provide the necessary opacity to ensure that the content on one page does not interfere with the readability of the content on the other side.

In addition to their opacity, ULWC papers also possess a high level of ISO brightness. The ISO brightness level of ULWC papers typically falls around 69%. ISO brightness is a measure of the whiteness of a paper, with higher values indicating a brighter appearance. This brightness level enhances the overall visual appeal of printed materials, making them more vibrant and attractive to readers.

The lightweight nature of ULWC papers offers several advantages to the printing industry. Firstly, it reduces the overall weight of the printed material, resulting in lower shipping costs. This is particularly beneficial for companies that produce large volumes of catalogs or magazines, as it can lead to significant cost savings.

Moreover, the thinness of ULWC papers allows for more pages to be printed within a specific volume. This means that companies can include more content in their publications without compromising on the overall weight and thickness of the product. This is especially advantageous for catalogs and magazines that require a high volume of information to be conveyed to the readers.

Despite their lightweight nature, ULWC papers are known for their durability and strength. They are designed to withstand the rigors of the printing process, such as high-speed presses and the application of ink. This ensures that the final printed product is of high quality and can withstand handling by readers and consumers.

In conclusion, ultralight weight coated papers have become a popular choice for rotogravure printed catalogs in Europe and offset printed magazines in the United States. With their adequate opacity, high ISO brightness, and lightweight nature, these papers offer several advantages to the printing industry. They not only reduce shipping costs but also allow for more content to be included in publications without compromising on weight or thickness. ULWC papers are a durable and reliable option for companies looking to produce visually appealing and cost-effective printed materials.