The world produces 300 million tons of plastic waste every year. 300 million tons of garbage is undoubtedly a huge disaster for the environment, and it is also a huge wealth. Compared with new materials, recycled plastics have decreased in both appearance and performance, which is not difficult for hardworking and intelligent people in the face of huge benefits.
The performance of recycled plastics has not actually decreased much, and the main issue is still the appearance quality. Let’s take PP woven bags as an example. The color of woven bags made of recycled plastic is always yellow or dull. However, the emergence of fluorescent brighteners has completely changed this situation.
Fluorescent whitening agents themselves do not have color, and they use the principle of complementary color and light to whiten. The color of the woven bag turns yellow and dim, and the fundamental reason is that the surface of the woven bag reflects too much yellow light, and the total amount of light emitted is not enough. Fluorescent whitening agents absorb invisible ultraviolet rays and emit visible blue purple fluorescence to the naked eye, which can be said to be the bane of yellowing. Yellow light and blue light are complementary colors, and when they meet, they become white light. In addition, invisible ultraviolet light is converted into visible light, invisibly increasing the total reflection of the product itself.
Crisis crisis, all opportunities are within the problem, as long as the right method is found, opportunities come. Originally a disaster, recycled plastic, with the help of fluorescent whitening agents, completed a magnificent turn and returned to the stage.
Post time: May-12-2023