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What is "ILD" - Definition & Explanation

Indentation Load Deflection (ILD) refers to the firmness of a piece of foam. The lab puts a 4" x 15" x 15" piece of foam on a flat surface. Then a round metal plate, 8" in diameter, pushes down on that piece of foam. The amount of pounds of pressure it takes to squeeze the 4" piece of foam to 3 inches (25% compression) is referred to as the ILD. A low ILD, such as 10, doesn't offer much resistance and is an extremely soft piece of foam. A piece of foam that takes 46 pounds of pressure

Some other terms

Some more terms:

A kind of jacket. Defined by the dictionaries as simply 'a kind of garment', the faiji was possibly a long over-garment without sleeves, or with very short sleeves, open in front and worn like a coat...
A finish which causes tiny fibrils or fibrous elements to be spilt from the fibers and protrude from the surface of the fabric. Results in a frosted, hazy, laundered appearance and a soft hand....
A woven construction in which patterns are built in at spaced intervals through the use of extra warp and/or extra fill yarns are placed in selected areas. These yarns are woven into the fabric by...
(Dye-variant fibers) Fibers, natural, or man-made, so treated or modified in composition that their affinity for dyes becomes changed; ie, to be reserved, dye lighter, or dye darker than normal...
A fabric of wool, also of rayon and silk. The name is derived from the French term eponge for "spongy". It is a very soft and sponge-like fabric in a variety of novelty effects with loose weave. ...

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