Companies must navigate the ever-evolving customer demands, technological advancements, and environmental and social considerations in today's dynamic market to develop innovative, high-quality products. Success requires understanding, prioritizing customer needs, exceeding expectations, and adopting a systematic and comprehensive approach. This paper proposes an advanced process for new product development by integrating the Theory of Inventive Problem Solving (TRIZ) with the existing Design for Six Sigma (DFSS) methodology. A case study of the design of teabags is presented to demonstrate the effectiveness of this framework. This study introduces a unique approach that integrates TRIZ tools within the DFSS methodology, leveraging DFSS as the structural foundation while harnessing TRIZ to stimulate creativity and innovation. This integration enhances product design by strategically applying TRIZ tools within specific stages, providing a novel perspective distinct from conventional DFSS practices. The result shows that companies can better understand their customers' needs using this integrated approach and create innovative, high-quality products that exceed expectations.