Water-repellent denim apparel and manufacturing method thereof

Manufacturing method for water-repellent denim apparel using double-dip coating

This technology involves a two-stage process: first, indigo-dyed denim fabric is dip-coated in a water-repellent solution before being cut and sewn into a garment; then, the finished garment is dipped again and dried to achieve superior water repellency.

Conventional denim apparel often suffers from poor water repellency because the treatment is only applied to the surface, causing it to wash off easily and failing to penetrate the fibers.

By double-dipping both the fabric and the finished garment, this technology ensures the water-repellent solution penetrates deep into the fibers, providing long-lasting protection for apparel.

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Key Features:

• Primary dip-coating stage: Indigo-dyed denim fabric is immersed in a water-repellent solution for an initial coating.
• Cutting and sewing stage: The primary-coated denim fabric is cut and sewn to create the denim garment.
• Secondary dip-coating stage: The finished denim garment is immersed in the water-repellent solution again for a secondary coating.
• Structural design: Features a primary coating layer that penetrates the denim fibers, topped with a secondary, integrated coating layer.

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