Suminoe Textile Co., Ltd.

Hiroaki Ishii

Junichi Takeda

Yoshiharu Nishino

Eiji Sakaguchi

Makoto Koyama

A non-halogen series floor material includes a first intermediate resin layer containing filler of 100 to 400 mass parts with respect to resin ingredient of 100 mass parts, the resin ingredient consisting essentially of resin having no chlorine atom in chemical structure, a surface resin layer integrally formed at an upper surface side of the first intermediate resin layer, the surface resin layer containing resin having no chloride atom in chemical structure and having a thickness of 100 to 1,000 &#x3bc;m, a second intermediate resin layer integrally formed at a lower surface side of the first intermediate resin layer, the second intermediate resin layer containing resin having no chloride atom in chemical structure and filler of 0 to 200 mass parts with respect to resin ingredient of 100 mass parts, and a backing layer integrally formed at a lower surface side of the second intermediate resin layer, the backing layer being formed of a fibrous fabric constituted by fibers containing resin having no chloride atom in chemical structure. A content ratio of the filler in the second intermediate resin layer with respect to the resin ingredient thereof is smaller than a content ratio of the filler in the first intermediate resin layer with respect to the resin ingredient thereof. A thickness of the second intermediate resin layer is 100 &#x3bc;m or more. A thickness of the second intermediate resin layer is 50% or less of a total thickness of three resin layers.

Non-halogen series floor material

A non-halogen series floor material includes an intermediate resin layer containing filler, resin having no chlorine atom in chemical structure as a primary resin ingredient and amorphous poly &#x3b1;-olefin resin whose number average molecular weight is 20,000 or less. The content of the amorphous poly &#x3b1;-olefin resin is 5 to 40% by weight with respect to entire resin ingredients. On the upper surface of the intermediate resin layer, a surface resin layer having a thickness of 30 to 1,000 &#x3bc;m is integrally formed. The surface resin layer includes no chlorine atom in chemical constitution. On the lower surface of the intermediate layer, a heat shrinkage-characteristic cloth is integrally formed by heating it to form a backing layer. This provides a non-halogen floor material that hardly generates toxic gases at the time of burning, can be manufactured at a low cost and is excellent in wear resistance, stain resistance, dimensional stability and workability.

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Nara, Japan

Hiroaki Ishii