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In the fast-paced world of automotive manufacturing, the ability to innovate and adapt to new materials is crucial. This case study explores the journey of a leading global Original Equipment Manufacturer (OEM) seeking an alternative to traditional foam for interior door bolsters in a luxury vehicle. The exploration led to the identification of spacer knit fabric, highlighting the importance of innovative materials in enhancing both the cosmetic appeal and sustainability of automotive interiors.
In the automotive industry, the adoption of new materials can significantly impact the overall design and functionality of a vehicle. The introduction of spacer knit fabric was driven by the need for a material that not only provided superior aesthetic qualities but also aligned with the increasing demand for sustainable and environmentally friendly options. The shift from traditional foams to spacer knit fabric, which can allow for future recyclability that foam cannot, underscores the industry’s commitment to innovation and sustainability.
The pursuit of an alternative to traditional high-density foams for interior door bolsters required a novel approach. High-density foams, while commonly used, posed limitations in terms of sustainability and long-term environmental impact. The OEM sought a material that could offer comparable if not superior benefits in terms of comfort, durability, and aesthetics.
Shawmut was tasked with finding a solution that not only met the functional requirements but also enhanced the overall visual appeal of the interior components. The challenge was to identify and implement a material that would provide a more environmentally sustainable alternative without compromising on performance or luxury.
Shawmut identified spacer knit fabric as an alternative to traditional foams. Spacer knit is a textile made from multiple layers of polyester fabric joined together; generally, a face fabric and a back fabric connected by interior pile threads, all knitted at the same time on one machine. While unconventional in the automotive industry, spacer knit fabric presented a viable option that combined aesthetic appeal with environmental benefits, while offering the density and cushioning attributes of the foam layer found in a conventional composite textile. However, implementing this innovative material posed challenges related to the adhesive lamination process.
The open knit design inherent in spacer knit required the development of a new adhesive lamination process to ensure effective bonding. This challenge was compounded by the need to integrate the spacer knit with other materials such as leather-like PVC vinyl with an open knit structured back and a rotogravure design. Shawmut devised an adhesive lamination process to bond the PVC to spacer knit, addressing the complexities of combining these materials while maintaining the integrity and functionality of the components.
The result was not just the successful integration of spacer knit fabric but also the establishment of a pioneering approach to material conversion and adhesive lamination. Shawmut’s ability to navigate the complexities of combining spacer knit with other patterns and designs showcased their commitment to pushing the boundaries of innovation in the automotive manufacturing landscape.
Shawmut’s expertise in lamination technologies was crucial in overcoming the adhesive bonding challenges presented by the spacer knit fabric. The company’s approach involved several key innovations and technical considerations:
The adoption of spacer knit fabric successfully addressed the OEM’s need for a sustainable and visually appealing alternative to traditional foams. This five-year program, involving a diverse and extensive global supply chain, highlighted the complexity and necessity of effective communication and collaboration among international teams.
The intricate supply chain, encompassing a wide array of internationally supplied materials, required seamless coordination to develop an efficient manufacturing process. Despite the elevated product and lamination costs compared to conventional methods, the spacer knit’s inherent advantages in comfort, durability, and sustainability made it a compelling choice.
The successful integration of spacer knit fabric underscored Shawmut’s commitment to customer collaboration and their ability to manage a substantial and globally dispersed supply chain. The achievement not only showcased the adaptability of the spacer knit solution but also emphasized Shawmut’s proficiency in delivering innovative materials for optimal results.
In the ever-evolving automotive industry, the ability to introduce innovative materials and collaborate across a broad international supply chain is a significant competitive advantage. Shawmut’s expertise in identifying and implementing spacer knit fabric underscores the importance of adaptability and forward-thinking in advancing automotive interiors. As spacer knit emerges as a key player in automotive interiors, this case study exemplifies the power of collaboration and cutting-edge solutions in shaping the future of automotive design.
Replacing traditional foam in a luxury vehicle interior with a sustainable, innovative spacer knit fabric
Shawmut Corporation
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208 Manley Street
West Bridgewater, MA 02379
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