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由于粉末涂料低毒、低污染,已在各个领域迅速应用。但作为粉末涂料中的色差、缩孔、表面颗粒问题,却始终困扰着施工单位及制造厂,因此有必要加以剖析并予以解决。下面就一一论述。一、色差问题由于粉末涂料的生产过程与溶剂型涂料不一样,始终处于固态变换之中,投料后颜色一锤定音,无法更改。再加上各使用厂往往有各自的指定色,所以难以满足要求。我们曾作过分析,发现由于色差而造成的产品降级达3％左右,而粉末生产厂也发生因颜色不符而退货,造成损失较大。为此建议:
Due to the low toxicity and low pollution of powder coatings, it has been rapidly applied in various fields. However, as powder coating in the color, shrinkage, surface particles, but it has always plagued the construction unit and the manufacturer, it is necessary to be analyzed and to be resolved. The following one by one discussion. First, the color problem As the powder coating production process and solvent-based paint is not the same, always in the solid state transformation, feeding the color of a hammer, can not be changed. Coupled with the use of the factory often have their own designated color, it is difficult to meet the requirements. We have analyzed and found that product degradation due to chromatic aberration reached about 3%, while powder manufacturers also returned due to color inconsistencies, resulting in greater losses. For this suggestion: