Dot coating screen, also known as rotary screen printing, is a precision application technology used to deposit adhesives, coatings, or finishes onto textile substrates in a controlled, discontinuous pattern . This method is a cornerstone of textile lamination and finishing, offering distinct advantages over full-surface coating techniques.
The process involves pumping a paste-often a hot-melt adhesive like copolyamide or polyurethane-through a rotating cylindrical screen . A doctor blade forces the material through the apertures, transferring it onto the fabric . The dot size, density, and weight are determined by mesh specifications and screen thickness .
In garment manufacturing, this process is essential for producing fusible interlinings, enabling durable bonding without compromising fabric breathability or softness . Beyond bonding, it applies functional finishes-such as flame retardants, water repellents, anti-slip coatings, or aesthetic effects like "puff dots" . The precise open dot pattern allows moisture vapor to pass through, making it ideal for high-performance sportswear and breathable laminates.
The primary benefits of dot coating include high production speed, flexibility, and significant material savings compared to gravure rollers . By applying adhesives only at discrete points, the technique maintains the fabric's drape and comfort while ensuring a strong, durable bond .
