Abstract: A method for preparing a thermal adhesive copolymerized polyester resin is disclosed. The method includes: a transesterification reaction in a reaction mixture of a diol compound according to Formula 1, for example, 2-Methyl-1,3-propanediol, an isophthalic acid (IPA) or an IPA derivative as an acid component, and polyethylene terephthalate; and a condensation polymerization reaction of the reaction mixture to prepare a copolymerized polyester resin. The copolymerized polyester resin has an intrinsic viscosity (I.V.) of 0.5 dL/g to 0.75 dL/g, a softening point (Ts) of 100° C. to 160° C., and a glass transition temperature (Tg) of 60° C. to 70° C. The copolymerized polyester resin can be effectively used in fields of clothing, automobile parts, as a thermal adhesive fiber. wherein R1 is an alkyl group having 1 to 4 carbon atoms, a and b are each independently an integer ranging from 0 to 3, and each solid line represents a single bond when a and b is 0.

Abstract: Provided are an automobile interior/exterior material including a low-melting-point polyester resin fiber layer, and a method of manufacturing the same. More particularly, an automobile interior/exterior material having excellent processability and price competitiveness without deterioration of properties, such as strength and durability, is provided.

Abstract: The present invention relates to a compound for preparing a copolymerized polyester resin and a method for preparing a copolymerized polyester resin using the same. The method for preparing a copolymerized polyester resin according to the present invention uses a compound represented by chemical formula 1, thereby exhibiting an excellent effect and reducing the manufacturing cost. In addition, the resin thus prepared has excellent thermal adhesion even at low temperatures and generates few byproducts during a polymerization procedure, so that the resin is advantageous in view of workability and processability.

Abstract: Provided are an automobile interior/exterior material including a low-melting-point polyester resin fiber layer, and a method of manufacturing the same. More particularly, an automobile interior/exterior material having excellent processability and price competitiveness without deterioration of properties, such as strength and durability, is provided.

Abstract: The present disclosure relates to a low-melting conjugate fiber prepared by complex radiation of: a general polyester as a core component; and a copolymer polyester resin for a low-melting binder prepared by copolymerizing an acid component composed of terephthalic acid and isophthalic acid or an ester-forming derivative thereof as a sheath component and a diol component composed of 2-methyl-1,3-propanediol, diethylene glycol, and ethylene glycol.

Abstract: The present invention provides a modified cross-section hollow fiber, wherein the fiber comprises a hollow part, a shape maintaining part and a volume control part, the volume control part can have a shape protruding in the direction opposite to the center of the fiber, and an end part has a round shape.