Floor material using PLA resin

A flooring material using a polylactic acid (PLA) resin, comprising:

• a base layer;
• a print layer formed on top of the base layer and having a printed pattern on an upper surface of the print layer;
• a transparent layer formed on the top of the print layer;
• and
• an anti-hydrolysis agent,
• wherein the base layer, the print layer and the transparent layer include a 100% amorphous PLA resin comprising acetyl tributyl citrate as a non-phthalate plasticizer, styrene-methacrylate-glycidyl acrylate polymer as a chain extender and an acrylic copolymer as a melt strength enhancer,
• wherein the base layer comprises 5 to 100 parts by weight of acetyl tributyl citrate, 0.01 to 10 parts by weight of styrene-methacrylate-glycidyl acrylate polymer and 0.1 to 20 parts by weight of the acrylic copolymer based on 100 parts by weight of the PLA resin, the base layer further comprising at least 10 parts by weight but less than 200 parts by weight of wood flour and/or at least 5 parts by weight but less than 20 parts by weight of pine resin based on 100 parts by weight of the PLA resin,
• wherein the print layer comprises 5 to 60 parts by weight of acetyl tributyl citrate, 0.01 to 10 parts by weight of styrene-methacrylate-glycidyl acrylate polymer and 0.1 to 20 parts by weight of the acrylic copolymer based on 100 parts by weight of the PLA resin, and
• wherein the transparent layer comprises 5 to 50 parts by weight of acetyl tributyl citrate, 0.01 to 10 parts by weight of styrene-methacrylate-glycidyl acrylate polymer, 10 parts by weight or less of the anti-hydrolysis agent and 0.1 to 20 parts by weight of the acrylic copolymer based on 100 parts by weight of the PLA resin.