Apparatus and method for measuring and/or controlling ultraviolet-activated materials in a paper-making process

摘要: A method includes illuminating a mixture of materials in wet-end paper process, where the an ultraviolet-activated material. The also measuring light from and determining property material based on measured light. may further include adjusting operation process determined could quantity fluorescent recycled used to form stock for machine and/or provided headbox process. Adjusting amount one or more headbox, such as whitening agent, fixative, fiber, pigment, particle, highlight, planchette, quencher.