Paper brightness is an important property of paper, which determines its application in the printing industry. It also impacts the visual quality of the paper, based on which the use of different papers is decided.
By definition, paper brightness refers to the percentage of blue light reflected from the paper’s surface. It does not talk about the shade or hue of the paper but the amount of light reflected by the paper. A brighter paper reflects more light than the one which reflects less light.
Manufacturers make use of a paper brightness tester when it comes to determining the brightness, glossiness, and opacity of a paper or similar materials. The initial brightness of the paper is known when the raw material, wood chips, and fibre materials are cooked and obtained. After the pulp is cooked and transformed into the paper sheet, it goes through colour changes. Pigments and other materials are added during the papermaking processes, which majorly determine the brightness of the paper. Once the paper is completely made, it is examined by the paper brightness tester.
The paper brightness tester by UEC comes with filters, a photocell, a digital panel, and a Tungsten lamp. Both the photocell and the tungsten lamp are used as light sources during the brightness test. A Sample Strip Cutter is used to prepare appropriate samples to perform the brightness test. Once the test is completed, the test values are displayed on the Digital Panel.
Papers tested using an effective paper brightness tester are verified for their brightness levels and can be sent for different applications in the printing industry. Here is how a paper of high brightness levels is used in the industry.
Uses of Papers With High Brightness Levels
Paper with high brightness levels is used for photography and graphic creation requirements. Such brightness ensures that the pictures printed on the paper sustain their original colours and look as they are, rather than fading out because of low brightness.
Elevated brightness levels also find application in the creation of paintings. When artists have to showcase their work in art galleries, they opt for high-brightness papers. On these papers, they reproduce their artworks and thanks to the brightness of the paper, it showcases true colours and even the smallest details of the paintings very appealingly.
Marketing materials such as visiting cards, flyers, brochures, posters, etc. make use of extremely bright papers. This helps both text and graphics make a strong impression due to the true colours and eye-catching appearance.
Official documents, where readability and a polished appearance are of utmost importance, make use of high brightness levels. Reports, certificates, circulars, etc. are official documents that make use of a highly bright paper.
Wrapping Up
So, this is how high-brightness papers are used in the printing industry. To know more about a paper brightness tester, its usages, features, cost, etc. get in touch with UEC’s experts. Also, visit the website to read more about the uses of a sample strip cutter for additional knowledge.