Can collar interlining be ironed at high temperatures?

Collar lining is a lining fabric sewn onto the collar of clothing to enhance its stiffness, shape, and stability. Common collar lining materials include cotton, polyester, viscose fibers, and their blends, or resin lining specifically used for the collar.
If it is cotton collar lining or viscose fiber collar lining, it can generally withstand a certain amount of high temperature ironing. Cotton fibers and viscose fibers have relatively good heat resistance, and appropriate high temperatures can better bond the collar lining with the fabric, enhancing the shaping effect of the collar. However, when ironing, it is still necessary to pay attention to temperature control and avoid prolonged high-temperature ironing in the same area to prevent the collar material from carbonizing and hardening, which may affect the comfort of wearing.
For polyester collar liners, especially resin collar liners that have undergone shaping treatment, they are more sensitive to high temperatures. Polyester has relatively poor heat resistance, and high temperatures can easily cause fiber shrinkage and deformation, even melting and clumping, which can damage the structure and properties of the lining. Resin collar lining may melt at high temperatures, causing the collar to harden, deform, and lose its original stiffness and styling.
Therefore, before using high-temperature ironing for collar lining, it is best to first understand the specific material of the collar lining. If it cannot be determined, you can first conduct ironing tests on inconspicuous parts such as the edges and corners of the collar lining at medium and low temperatures to observe the changes in the collar lining. If there is no deformation, melting, or hardening, gradually adjust to the appropriate ironing temperature. At the same time, it is recommended to cover the collar with a thin cloth during ironing to avoid direct contact between the iron and the collar, in order to reduce direct damage to the collar caused by high temperatures.