Abstract: The aim of this work is to analyze the relationship between interval QL-implications and interval D-implications, studying some properties that relate these concepts. We also analyze under which conditions the main properties relating punctual D-implications and QL-implications are still valid when an interval-based fuzzy approach on best interval representations is considered. Palavras-chave: Interval Fuzzy Logic, Interval Fuzzy Implication, D-implication, QL-implication