News

Bleaching stability determines whiteness uniformity and production safety of high-white pulp and finished white paper. In pulping bleaching section, unstable bleaching agent activity, inconsistent pulp pH value and uneven chemical mixing lead to uneven bleaching effect, appearing patchy color difference, local under-bleaching and excessive bleaching. Excessive bleaching destroys fiber structure, shortens fiber length, reduces paper physical strength, and increases bleaching chemical consumption. Unstable bleaching causes batch whiteness deviation, makes finished paper color inconsistent, brings huge trouble to finished product color classification and customer delivery. In addition, unstable bleaching reaction produces more harmful by-products, increases wastewater chroma, raises subsequent sewage treatment burden and environmental protection cost. Traditional bleaching auxiliaries have poor anti-interference ability, easily affected by pulp temperature and raw material impurity. Shandong Ludao Energy Technology Co., Ltd. launches composite bleaching stabilizing solutions. It regulate pulp system pH value moderately, improve bleaching agent utilization efficiency, realize uniform mild bleaching reaction, avoid local over-bleaching and fiber damage. This solution unifies pulp batch whiteness, reduces bleaching agent dosage, lowers wastewater chroma treatment pressure, protects fiber integrity, balances high whiteness and high paper strength, and realizes energy-saving and stable bleaching production.