Flooring material using poly lactic acid resin and construction methods of the same

Abstract

Disclosed is a flooring material in which edge portions of a base layer and a surface layer of the flooring material are formed to be rounded when press forming the base layer and the surface layer, thereby providing its fine appearance, and which can provide construction joints between tiles through a dry construction method using an adhesive. The flooring material formed of a PLA resin, which is constructed on floor, includes a resin tile having a base layer and a surface layer which is stacked on the base layer and which consists of a dimensionally stabilizing layer, a balance layer, a printed layer, a transparent layer and a protective layer, the base layer and the surface layer being formed of the PLA resin and each four edge portion thereof being formed into a curved surface; and a construction joint which is formed at a gap formed between the tiles, wherein an adhesive is applied on the floor before the tile is attached, and the tiles are arranged to be spaced apart from each other with a desired gap therebetween, and the construction joint is formed at the gap.

1 . A flooring material formed of a PLA resin, which is constructed on floor, comprising:
 a resin tile having a base layer and a surface layer which is stacked on the base layer and which consists of a dimensionally stabilizing layer, a balance layer, a printed layer, a transparent layer and a protective layer, the base layer and the surface layer being formed of the PLA resin and each four edge portion thereof being formed into a curved surface; and   a construction joint which is formed at a gap formed between the tiles,   wherein an adhesive is applied on the floor before the tile is attached, and the tiles are arranged to be spaced apart from each other with a desired gap therebetween, and the construction joint is formed at the gap.   
     
     
         2 . The flooring material according to  claim 1 , wherein the construction joint is formed at the gap formed between the tiles, such that the four edge portions of each tile is formed into the curved surface, and the construction joint is formed up to an upper side surfaces of the surface layer. 
     
     
         3 . The flooring material according to  claim 1 , wherein the construction joint is formed of white cement or epoxy resin. 
     
     
         4 . The flooring material according to  claim 1 , wherein one or more of the base layer forming the resin tile, a bottom layer pressed on a lower surface of the base layer, and the surface layer stacked on the base layer and consisting of the dimensionally stabilizing layer, the balance layer, the transparent layer and the protective layer are formed of the PLA resin. 
     
     
         5 . The flooring material according to  claim 1 , wherein the PLA resin contains one or more of a non-phthalate plasticizer, an acrylic copolymer for reinforcing melt strength, a lubricant, a chain extender, a hydrolysis stabilizer. 
     
     
         6 . A construction method of a flooring material formed of a PLA resin, comprising:
 making construction floor even and removing foreign substances; applying an adhesive on the construction floor;   attaching tiles consisting of a bottom layer, a base layer, a dimensionally stabilizing layer, a balance layer, a printed layer, a transparent layer and protective layer which are formed of the PLA resin and stacked in turn, such that the tiles are arranged to be spaced apart from each other with a gap therebetween; and   forming a construction joint at the gap between the tiles.   
     
     
         7 . The construction method according to  claim 6 , wherein the tile of which four edge portions are respectively formed into a curved surface are attached to the adhesive. 
     
     
         8 . The construction method according to  claim 7 , wherein the tile is pressed by a molding die in which each edge portion formed by an upper plate and a side plate, and the edge portions are respectively formed into a curved surface. 
     
     
         9 . The construction method according to  claim 6 , wherein the construction joint formed between the tiles is formed up to the protective layer which is the uppermost layer of the tile. 
     
     
         10 . A flooring material formed of a PLA resin, which is constructed on floor, comprising:
 a resin tile having a base layer, and a printed layer and a transparent layer which are stacked in turn on the base layer, one or more of the base layer, the printed layer and transparent layer being formed of the PLA resin and each four edge portion thereof being formed into a curved surface; and   a construction joint which is formed at a gap formed between the tiles,   wherein an adhesive is applied on the floor before the tile is attached, and the tiles are arranged to be spaced apart from each other with a desired gap therebetween, and the construction joint is formed at the gap.   
     
     
         11 . The flooring material according to  claim 10 , wherein a protective layer is stacked on the transparent layer. 
     
     
         12 . The flooring material according to  claim 10 , wherein a dimensionally stabilizing layer and a balance layer are stacked between the base layer and the printed layer. 
     
     
         13 . The flooring material according to  claim 10 , wherein a bottom layer is provided at a lower surface of the base layer. 
     
     
         14 . The flooring material according to  claim 2 , wherein the PLA resin contains one or more of a non-phthalate plasticizer, an acrylic copolymer for reinforcing melt strength, a lubricant, a chain extender, a hydrolysis stabilizer.