Abstract: A laminate film, package formed from the laminate film, and method for constructing the laminate film are provided. The laminate film includes a barrier layer, sealing layer, bonding layer, and thermochromic ink layer. The thermochromic ink layer includes thermochromic ink such that the thermochromic ink is trapped between the barrier layer and sealing layer. The thermochromic ink has a first visual appearance and is adapted to permanently change to a second visual appearance upon exposure to certain pre-determined conditions during a sealing process and to maintain permanence of the second visual appearance during post-sealing processes. The package includes the laminate film, a substrate, and a packaged article. The edges of the laminate film are sealed to the substrate and form a seal. The seal forms a perimeter about the article and has the second visual appearance, including a different color, such that the integrity of the seal is quickly and confidently verifiable by an observer.

Abstract: The invention relates to the use of a flame resistant three-layer double-knit or woven fabric, also know as a matelasse fabric. The top layer is of standard non-flame resistant face yarn, the middle layer is of flame resistant filler yarn and the bottom layer is of flame resistant core wrap spun yarn. This flame resistant matelasse fabric can be used to protect a mattress, foundation, mattress pad, pillow, comforter, upholstery cushion, pillow, office panel, transportation seat or any other article requiring flame resistant protection. In this invention, a matelasse fabric is formed by circular double knitting or weaving a flame resistant core spun yarn into the bottom portion of the fabric, utilizing a heavy cotton count flame resistant filler yarns for the middle layer and using conventional non-flame resistant yarns for the top layer.

Abstract: The invention relates to the use of a flame resistant knit tube, made with either a seamless or seamed circular knit or a seamed or tubular warp knit fabric, used to protect a mattress, foundation, upholstery cushion, pillow, office panel, transportation seat or any other article requiring flame resistant protection. In this invention, a tubular knit fabric is formed utilizing flame resistant yam and then optionally heat-set to prevent curling during subsequent cutting and processing. Heat-setting the knit fabric is especially preferred for circular knit constructions to prevent curling in subsequent processing. The knit tube is then cut to the length of the article to be flame protected, allowing enough additional length to sew a pocket closure on one end and a standard closure on the other end. First, one end of the tubular knit sock is sewn with a pocket closure seam, using a flame resistant thread or a suitable substitute.