Full shrink sleeve labels have gained popularity in recent years because of their attractive shelf presence. While very appealing to the consumer, shrink sleeve labeled PET bottles are not friendly to PET recyclers. Shrink sleeve labels can interfere with the accuracy of automated sortation equipment. Because many shrink sleeve labels today are PETG-based or PVC-based film with density higher than water, they cannot be separated from PET flakes during the sink-float separation step of the recycling process, and thus contaminate the recycled PET stream and deteriorate the quality of recycled PET (rPET) products. Poor ink adhesion on shrink sleeve labels contaminates wash/rinse water and can stain the color of rPET.