Abstract: The disclosure provides a polyester composite board structure and a manufacturing method thereof. The manufacturing method includes extruding a polyester layer into a board using a multi-layer extrusion equipment, and laminating a polyester film by heat using a wheel during an extrusion process.

Abstract: A manufacturing method of a polyester film for being embossed with a laser-engraved pattern is provided. The manufacturing method includes the steps of forming a polyester material into an unstretched polyester film in a multi-layered co-extrusion manner and stretching the unstretched polyester film in a machine direction and a transverse direction to form a biaxially stretched polyester film. The unstretched polyester film includes a substrate layer and at least one surface layer on the substrate layer. The at least one surface layer includes a polyester-based copolymer that includes 85 to 95 mol % of terephthalic acid residues, 5 to 15 mol % of isophthalic acid, 35 to 74 mol % of ethylene glycol residues, 1 to 15 mol % of neopentyl glycol residues, and 25 to 50 mol % of 1,4-butanediol residues.

Abstract: The disclosure provides a wear-resistant polyester material, which includes a polyethylene terephthalate (PET) resin, a nucleating agent, a lubricant, and an antioxidant.

Abstract: A pharmaceutical packaging composite film includes a heat sealing layer, an aluminum foil layer, and an impact resistant layer. The heat sealing layer contains residues derived from at least one of 1,4-butanediol, isophthalic acid, isoprene glycol, and isopropanol, and thus has a melting point between 130° C. and 180° C. The aluminum foil layer is disposed on the heat sealing layer. The impact resistant layer is disposed on the aluminum foil layer.

Abstract: A breathable and waterproof membrane and a method for manufacturing the same, and a breathable and waterproof fabric are provided. The breathable and waterproof membrane is formed by stretching a polyolefin material. The breathable and waterproof membrane has a density ranging from 0.6 g/cm3 to 0.8 g/cm3. A plurality of micropores are formed on the breathable and waterproof membrane, and the plurality of micropores each has a size smaller than 500 nm. The polyolefin material includes: 60 wt % to 80 wt % of a first polypropylene resin, 15 wt % to 30 wt % of a second polypropylene resin, and 1 wt % to 10 wt % of inorganic particles. The second polypropylene resin is a modified polypropylene resin having a hydrophilic group. The second polypropylene resin is different from the first polypropylene resin.

Abstract: A low shrinkage low oligomer polyester film and a method for manufacturing the same are provided. The method includes forming at least one polyester composition into an unstretched polyester thick film and stretching the unstretched polyester thick film in a machine direction (MD) and a transverse direction (TD) at a stretch ratio of two to six times. The polyester composition includes 94% to 99.974% by weight of a polyester resin, 0.01% to 1% by weight of a primary antioxidant, 0.01% to 1% by weight of a secondary antioxidant, 0.003% to 2% by weight of a nucleating agent, and 0.003% to 2% by weight of a flow aid. The polyester resin has an intrinsic viscosity between 0.60 dl/g and 0.80 dl/g.

Abstract: The invention provides an impact-resistant and flame-retardant polyester material, which includes a PET resin, a nucleating agent, a flame retardant, an antioxidant, a rod-shaped filling and reinforcing material and a compatibilizer. The PET resin includes virgin pellets or environmental-friendly recycled pellets, which can meet the demand for the introduction of recycled materials.

Abstract: A double-layered medical membrane and a method for manufacturing the same are provided. The double-layered medical membrane includes a hydrophilic material layer and a hydrophobic material layer disposed thereon. The hydrophilic material layer includes hydrophilic fibers, hydrophilic particles, or a combination thereof. The hydrophilic fibers and the hydrophilic particles include a hydrophilic polymer as a material. The method includes the following steps: using an electrospinning solution to form the hydrophilic material layer by electrospinning or using a hydrophilic solution to form the hydrophilic material layer; and producing the double-layered medical membrane that includes the hydrophilic material layer. The hydrophilic material layer includes the hydrophilic fibers, the hydrophilic particles, or the combination thereof. The hydrophilic fibers or the hydrophilic particles include the hydrophilic polymer as a material.

Abstract: A method for forming polyester material from recycled film including the following steps is provided: performing a film surface treatment on the recycled film to form a recycled material including polyester; fragmenting the recycled material to form a recycled chipped material, wherein the recycled chipped material has a first intrinsic viscosity; and forming the polyester material by the recycled chipped material, wherein the polyester material has a second intrinsic viscosity, and the second intrinsic viscosity is greater than the first intrinsic viscosity.

Abstract: A method for forming polyester material from recycled film including the following steps is provided: performing a film surface treatment on the recycled film to form a recycled material including polyester; fragmenting the recycled material to form a recycled chipped material, wherein the recycled chipped material has a first intrinsic viscosity; and forming the polyester material by the recycled chipped material, wherein the polyester material has a second intrinsic viscosity, and the second intrinsic viscosity is greater than the first intrinsic viscosity.

Abstract: A medical tube is provided. The medical tube includes a hollow body and a gas conduit formed inside the hollow body for transporting gases. A material of the hollow body is a thermoplastic polyester elastomer. Based on a total weight of the thermoplastic polyester elastomer being 100 wt %, the thermoplastic polyester elastomer includes 50 wt % to 70 wt % of hard segments and 30 wt % to 50 wt % of soft segments.

Abstract: A detectable dust-proof paper is provided. The detectable dust-proof paper includes a detected layer, a first plastic layers, and a first ink-receptive layer. The detected layer has two opposite surfaces. The detected layer includes at least one metal which is selected from the group consisting of: aluminum, copper, nickel, iron, and a mixture or an alloy thereof. The first plastic layer is disposed on one of the two surfaces of the detected layer. A material of the first plastic layer is selected from the group consisting of: a polyolefin, a polyester, a polyamide, and any combination thereof. The first ink-receptive layer is disposed on the first plastic layer. The first ink-receptive layer contains an inorganic ink-absorption material ranging between a value larger than 0 wt % and 75 wt %.

Abstract: A fruit and vegetable anti-fog packaging bag, which is produced with a polypropylene multilayer film, is manufactured by a high-speed bag making machine.

Abstract: A pharmaceutical packaging composite film includes a heat sealing layer, an aluminum foil layer, and an impact resistant layer. The heat sealing layer contains residues derived from at least one of 1,4-butanediol, isophthalic acid, isoprene glycol, and isopropanol, and thus has a melting point between 130° C. and 180° C. The aluminum foil layer is disposed on the heat sealing layer. The impact resistant layer is disposed on the aluminum foil layer.

Abstract: A polyester film for laser embossing and a method for manufacturing the same are provided. The polyester film for laser embossing is made from a recycled polyester material, and includes a base layer and a skin layer. The skin layer is disposed on at least one surface of the base layer. The skin layer is formed from a first polyester composition. The first polyester composition includes regenerated polyethylene terephthalate as a main component and at least one component selected from 1,4-butanediol, isophthalic acid, neopentyl glycol, 2-methyl-1,3-propanediol, pentanediol, isopentyldiol, adipic acid, and 1,4-cyclohexanedimethanol, so that a melting point of the skin layer ranges from 190° C. to 240° C.

Abstract: A breathable and waterproof membrane and a method for manufacturing the same, and a breathable and waterproof fabric are provided. The breathable and waterproof membrane is formed by stretching a polyolefin material. The breathable and waterproof membrane has a density ranging from 0.6 g/cm3 to 0.8 g/cm3. A plurality of micropores are formed on the breathable and waterproof membrane, and the plurality of micropores each has a size smaller than 500 nm. The polyolefin material includes: 60 wt % to 80 wt % of a first polypropylene resin, 15 wt % to 30 wt % of a second polypropylene resin, and 1 wt % to 10 wt % of inorganic particles. The second polypropylene resin is a modified polypropylene resin having a hydrophilic group. The second polypropylene resin is different from the first polypropylene resin.

Abstract: A low shrinkage low oligomer polyester film and a method for manufacturing the same are provided. The method includes forming at least one polyester composition into an unstretched polyester thick film and stretching the unstretched polyester thick film in a machine direction (MD) and a transverse direction (TD) at a stretch ratio of two to six times. The polyester composition includes 94% to 99.974% by weight of a polyester resin, 0.01% to 1% by weight of a primary antioxidant, 0.01% to 1% by weight of a secondary antioxidant, 0.003% to 2% by weight of a nucleating agent, and 0.003% to 2% by weight of a flow aid. The polyester resin has an intrinsic viscosity between 0.60 dl/g and 0.80 dl/g.

Abstract: An aqueous surface coating solution composition and a polyester film structure are provided. The aqueous surface coating solution composition includes 5-20 wt % of a resin composition and 0.15-5 wt % of an inorganic particle dispersion liquid. The resin composition includes 0.01-10 wt % of a polyester resin, 2-19 wt % of an acrylate-grafted polyurethane resin, and 0.5-10 wt % of a cross-linking agent. The inorganic particle dispersion liquid includes a plurality of first inorganic filling particles and a plurality of second inorganic filling particles, and the first inorganic filling particles have a larger average particle diameter than the second inorganic filling particles.

Abstract: A matte film for hot pressing and a manufacturing method thereof are provided. The manufacturing method includes steps of forming at least one polyester composition into an unstretched polyester thick film and stretching the unstretched polyester thick film in a machine direction (MD) and a transverse direction (TD). The polyester composition includes 81% to 97.9497% by weight of a polyester resin, 0.02% to 2% by weight of an antioxidative ingredient, 0.0003% to 1% by weight of a nucleating agent, 0.01% to 2% by weight of a flow aid, 0.01% to 2% by weight of a polyol ester based polyester modifier, 0.01% to 2% by weight of an inorganic polyester modifier, and 2% to 10% by weight of silica particles. The polyester resin has an intrinsic viscosity between 0.60 dl/g and 0.80 dl/g.

Abstract: A polyester film for being embossed with a laser-engraved pattern and a manufacturing method thereof are provided. The polyester film includes a substrate layer and at least one surface layer formed on the substrate layer. The surface layer serves as an easy-to-press embossed pattern layer, and is formed from a polyester-based copolymer. The polyester-based copolymer includes residues derived from a diacid component and residues derived from a diol component. The diacid component includes 85 to 95 mol % of terephthalic acid and 5 to 15 mol % of isophthalic acid. The diol component includes 35 to 74 mol % of ethylene glycol, 1 to 15 mol % of neopentyl glycol, and 25 to 50 mol % of 1,4-butanediol.