Stenter Machine Function and Purpose
📌 The primary role of the stenter machine is to stretch and adjust fabric to the correct dimensions, especially after processes like dyeing that cause shrinkage and twisting in cotton fabric.
🧪 It is used to set fabric with heat and precisely apply specialized chemicals to achieve various finishes like water repellency or softening.
📏 The machine ensures the GSM (Grams per Square Meter) of the fabric is maintained and prevents fabric distortion, such as twisting, skewing, or bowing.

Stenter Machine Operational Procedure
⚙️ The process begins with the fabric inlet after treatments (dyeing, bleaching), guided through rollers into the machine, often using a J-box chute for smooth handling.
💧 Chemical treatment occurs via a three-roll padding system in a chemical tank to impart finishes; the subsequent Bianco unit manages fabric alignment (skewing/bowing) using sensor-driven roller adjustments.
🌡️ After chemical application, the fabric enters the dry chamber for heat setting, with temperatures varying by finish (e.g., 180°C for Teflon vs. 130°C to 150°C for soft finishes), utilizing burners and blowers for even heat distribution.
🔗 The gripping chain manages fabric width via over-feeding (fabric width > chain width) or under-feeding (fabric width < chain width) before the fabric is cooled via stainless steel cooling rollers and sent to the outlet.

Key Points & Insights
➡️ The stenter machine acts as a crucial multi-tasking tool for quality control in textile finishing, addressing shrinkage, moisture control, and dimensional stability.
➡️ Different fabric finishes require specific thermal settings; for instance, Teflon finishes necessitate a higher heat cure temperature of 180°C.
➡️ Precision is maintained throughout the process using mechanisms like the Bianco unit to correct lateral distortions (skewing/bowing) automatically or manually.

📸 Video summarized with SummaryTube.com on Nov 09, 2025, 02:20 UTC