What causes an increase in items during winter? Static electricity and dust.
In the dry winter air, static electricity accumulates on parts and work clothes, attracting dust. This explains the causes of increased defects in winter and the measures that can be taken before painting.
In winter, the number of blemishes on the painted surface suddenly increases. Despite cleaning the booth as usual, they do not decrease. 【First, please look here】 □ Blemishes gather at the corners and edges of parts → Dust is attracted by static electricity □ There are many near places touched by work clothes → Dry air causes clothes and gloves to become charged □ More common on dry, sunny days → The lower the humidity, the more static electricity accumulates 【Why it happens】 In the dry winter air, static electricity is generated just by objects rubbing against each other. Charged parts attract fine dust in the air. 【Countermeasures you can implement starting today】 1. Perform air blowing and static elimination before painting 2. Use work clothes that are less likely to become charged 3. Record the humidity in the painting area to prevent excessive dryness 【Free materials】 We have compiled how to identify painting troubles that include blemishes in the related catalog "Eiwa Kogei_Painting Trouble Introduction_Identification and Countermeasure Guide." You can download it for free from this page.
basic information
Defect target: Foreign matter (contamination). Management items: Deionization, air blowing, anti-static work clothing, humidity records in the painting area.
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Applications/Examples of results
Metal parts requiring exterior quality, black or high-gloss painted products. Measures against appearance defects in winter, environmental management of the painting area, training materials for new employees.
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We are not just a "subcontracted painting factory." Established in 1958, our company has a foundation of painting technology and also specializes in chemical treatment, stripping, and cleaning, functioning as the "external surface treatment department" in your organizational chart. Based on our philosophy of "preparation is eight-tenths of the work," we emphasize participation from the "upstream process" before the drawings are finalized. We conduct test painting on a wide range of metals and difficult materials, and we produce the entire process from assembly, packaging, to delivery, thereby reducing your management workload. Additionally, by being able to perform zinc phosphate treatment in-house, we achieve stable painting quality. Furthermore, our micro-heating stripping technology, which does not use chemicals, maintains the electrical state of the "jigs (hangers)" that influence painting quality. Our approach of "pre-treatment determines painting quality" ensures the stability of the paint film during mass production. Rather than simply "applying specified standards," we work backwards to achieve optimal painting specifications and prevent scratches during transportation, sparing no effort in thorough discussions from the outset. This diligent preparation is the shortest path to preventing rework and minimizing total costs. From the development stage, please utilize the expertise of our specialists as part of your production line.