Vertical stretch sidewall for mattress pad and method of...

A - Human Necessities – 47 – C

Patent

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A47C 27/00 (2006.01)

Patent

CA 2202960

A sidewall for a mattress pad is formed from a multi-layer structure which includes a flexible net intimately joined with, and sandwiched between, two outer layers of fabric. The flexible net includes spaced vertical elastic yarns, and spaced horizontal, substantially inelastic yarns which intersect and are bonded to the vertical yarns. Horizontally extending gathers are permanently formed in the outer layers of fabric. The gathers and the vertical elastic yarns allow for significant vertical stretch of the sidewall so that the mattress pad can accommodate mattresses with different thicknesses or heights. A method for manufacturing sidewall material includes a step of adhering the three layers together and shrinking the vertical elastic yarns to create the permanent gathers in the outer layers of fabric.

Paroi latérale pour un couvre-matelas formée d'une structure multicouche qui comprend un filet flexible lié à deux couches extérieures du tissu et intercalé entre les deux. Le filet flexible comprend des fils élastiques verticaux, espacés et des fils non élastiques, horizontaux, espacés qui croisent les fils verticaux et sont liés à ces derniers. Des fronces horizontales sont formées de façon permanente dans les couches extérieures du tissu. Les fronces et les fils élastiques verticaux permettent une extensibilité élastique verticale importante de la paroi latérale afin d'adapter le couvre-matelas à des matelas de différentes épaisseurs ou hauteurs. Une méthode pour fabriquer le matériau de la paroi latérale comprend une étape pour faire adhérer les trois couches ensemble et pour faire rétrécir les fils élastiques verticaux pour obtenir des fronces permanentes dans les couches extérieures du tissu.

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