Discoloration on Shirt Collar Tip

Q: Why are there dark spots on my collar points after dry cleaning?

A: Stains on the collar tips are caused by a heat sensitive adhesive between the collar fabric and interfacing meant to stabilize and shape the collar prior to stitching. If there is either too much bonding agent, or if it cannot withstand commercial pressing temperatures, the adhesive may re-soften and seep through the fabric. The shirt manufacturer must use proper bonding agents to prevent this from occurring. Once the material melts, there is no practical means of removal.