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  • Bottom Coloring in Outsole Process: Outsole (Stock Fitting) Assembly Series

    In the previous blog, Snuffing Operations in Outsole Process, we explored how controlled surface preparation improves outsole appearance and prepares leather or synthetic components for subsequent finishing operations. Once the surface becomes smooth, clean, and free from minor imperfections, the outsole moves to another important aesthetic process—bottom coloring. Bottom coloring is not merely a decorative operation. It creates a uniform appearance, improves product presentation, supports brand identity, and minimizes visible material variations before final assembly. Premium footwear manufacturers pay particular attention to this process because customers often judge product quality…

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