Elastic network structure with excellent quietness and hardness
AssigneeToyobo Co., Ltd.
InventorsHiroyuki Wakui, Masahiko Nakamori
Life of this patent
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Abstract
[Problem] The objective of the present invention is to provide an elastic mesh structure having exceptional cushioning and reducing noise during compression or recovery. [Solution] A mesh structure comprising a three-dimensional, random-loop, joining structure formed by winding a continuous line of thermoplastic resin to form random loops, bringing the loops into contact with one another in a molten state, and fusing the majority of the contact area, wherein (a) the apparent density of the random-loop contact structure is 0.005-0.200 g/cm3, and (b) the number of contact points per unit weight of the random-loop contact structure is 500-1200/g.
Claims11
A network structure comprising a random loop bonded structure of a continuous linear structure of a thermoplastic resin,
- wherein (a) the random loop bonded structure has an apparent density of 0.02 to 0.100 g/cm3, (b) a number of bonded points per unit weight of the random loop bonded structure is 500 to 1200/gram, (c) the fineness of the continuous linear structure is 200 to 3000 decitex, (d) the network structure has a thickness of not less than 3 cm, and (e) a 25%-compression hardness of the random loop bonded structure is not less than 10 kg/φ200-mm and not more than 50 kg/φ200-mm diameter.
Dependencies are inferred from the claim text.