Insulated composite fabric

This invention describes an insulated fabric made of three layers: an inner layer, an outer layer, and a special insulating middle layer. This middle layer is a textile with fuzzy, raised surfaces on both sides, where the fuzzy parts connect through the fabric. The patent specifically claims a method of making this fabric by sewing the layers together, with the fuzzy surfaces being fleece or velour.

Why it matters: No specific technological shifts since 2017 make this fabric easier to produce. The specialized textile manufacturing for the unique filler layer remains the primary hurdle.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedSpecialized textile manufacturing, industrial sewing equipment.

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