The root causes affecting the quality of PU pigments may include the following aspects:
Raw material quality: The quality of PU pigments is affected by raw materials, including resins, solvents, pigments and additives, etc. If the quality of raw materials is unstable or contains impurities, it will affect the performance and stability of PU pigments.
Production process: Process control during the production process also has an important impact on the quality of PU pigments. Process steps including mixing, grinding, filtration, and dispersion of pigments require strict control of parameters and operating conditions to ensure stable pigment quality.
Additive selection and proportioning: The selection and proportioning of additives in PU pigments such as additives, diluents, etc. will also affect its quality. Different additives have different effects on the performance and stability of pigments, and they need to be reasonably selected and proportioned according to specific application requirements.
Environmental factors: The temperature, humidity and other factors of the production environment will also affect the quality of PU pigments. Especially in process steps such as mixing and grinding, changes in environmental conditions may cause fluctuations in pigment performance.
Quality control system: A sound quality control system is crucial to ensure the stability of PU pigment quality. Including raw material incoming inspection, quality control in the production process, finished product inspection and other links, a complete quality control system needs to be established.
