Nan Ya Plastics Corporation

Chia-Yen Hsiao

Wen-Cheng Yang

Te-Chao Liao

Chun-Cheng Yang

Ching-Yao Yuan

Hao-Sheng Chen

Wen-Jui Cheng

Chun-Che Tsao

Chih-Feng Wang

Yu-Chi Hsieh

Chien-Chih Lin

Chen An Wu

A method for manufacturing a heat sealable polyester film is provided. A part of a recycled polyester material is physically reproduced to obtain physically regenerated polyester chips. Another part of a recycled polyester material is chemically reproduced to obtain chemically regenerated polyester chips. Modified polyester chips, the physically regenerated polyester chips and the chemically regenerated polyester chips are mixed to form a raw material mixture, and the modified polyester chips are formed from the recycled polyester material. The raw material mixture is used to form a heat sealable layer. A base layer is disposed onto the heat sealable layer so as to obtain the heat sealable polyester film. A heat sealing temperature of the heat sealable polyester film ranges from 120° C. to 230° C.

Method for manufacturing heat sealable polyester film

A polyester film and a method for producing the same are provided. The polyester film includes a physically recycled polyester resin and a chemically recycled polyester resin. The physically recycled polyester resin is formed of physically recycled polyester chips, and the physically recycled polyester chips have a first intrinsic viscosity. The chemically recycled polyester resin is formed of chemically recycled polyester chips, and the chemically recycled polyester chips have a second intrinsic viscosity. The second intrinsic viscosity is less than the first intrinsic viscosity. The physically recycled polyester chips and the chemically recycled polyester chips are mixed with each other and melt extruded according to a predetermined intrinsic viscosity, so that the polyester film has the predetermined intrinsic viscosity.

Polyester film and method for producing the same

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.

Polyester film for laser embossing and method for manufacturing the same

A black polyester film and a method for manufacturing the same are provided. The black polyester film includes a physically recycled polyester resin and a chemically recycled polyester resin. The physically recycled polyester resin is formed by a plurality of physically recycled polyester chips. The chemically recycled polyester resin is formed by a plurality of chemically recycled polyester chips and mixed with the physically recycled polyester resin. The plurality of chemically recycled polyester chips further include chemically recycled electrostatic pinning polyester chips. The chemically recycled electrostatic pinning polyester chips contain electrostatic pinning additives, and the electrostatic pinning additives are metal salts. Expressed in percent by weight based on a total weight of the polyester film, a content of the electrostatic pinning additives in the polyester film is between 0.005% and 0.1% by weight. The black polyester film further includes a black additive.

Black polyester film and method for manufacturing the same

A heat sealable polyester film and a method for manufacturing the same are provided. The heat sealable polyester film is made from a recycled polyester material. The heat sealable polyester film includes a base layer and a heat sealable layer formed on at least one surface of the base layer. The heat sealable layer is formed from a first polyester composition. A main component of the first polyester composition is regenerated polyethylene terephthalate and the first polyester composition further includes at least one of 1,4-butanediol, isophthalic acid, neopentyl glycol, and polybutylene terephthalate. A heat sealing temperature of the heat sealable polyester film ranges from 120° C. to 230° C.

Heat sealable polyester film

The disclosure discloses a heat-sealable polyester film, including a base layer and a heat-seal layer formed on the base layer. The heat-seal layer includes a physically regenerated polyester resin, a chemically regenerated polyester resin, and a modifier. The heat-sealable temperature of the heat-sealable polyester film is between 100° C. and 230° C.

Heat-sealable polyester film

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 polyester modifier, 0.01% to 2% by weight of an inorganic filler, 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.

Matte film for hot pressing and manufacturing method thereof

A biaxially oriented polyester film having the following physical property is provided: when cooled from the molten state at a cooling rate of 20&#xb0; C./min, an observed recrystallization temperature is 175&#xb0; C.-200&#xb0; C. The biaxially oriented polyester film is formed by a thick sheet before bidirectional stretching that is melted and extruded by an extruder and then cooled and formed on a casting roll. The thick sheet before stretching having the following physical property as analyzed by differential scanning calorimetry: a crystallization rate is less than 10%.

Biaxially oriented polyester film and manufacturing method thereof

A flame-retardant polyester film and a method for manufacturing the same are provided. The flame-retardant polyester film includes a physically recycled polyester resin and a chemically recycled polyester resin. The physically recycled polyester resin is formed by a plurality of physically recycled polyester chips. The chemically recycled polyester resin is formed by a plurality of chemically recycled polyester chips and mixed with the physically recycled polyester resin. The plurality of chemically recycled polyester chips further includes chemically recycled electrostatic pinning polyester chips. The chemically recycled electrostatic pinning polyester chips contain electrostatic pinning additives, and the electrostatic pinning additives are metal salts. Expressed in percent by weight based on a total weight of the polyester film, a content of the electrostatic pinning additives in the polyester film is between 0.005% and 0.1% by weight. The flame-retardant polyester film further includes a flame-retardant additive.

Flame-retardant polyester film

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.

Low shrinkage low oligomer polyester film and method for manufacturing the same

A matte polyester film and a method for manufacturing the same are provided. The matte polyester film includes a physically recycled polyester resin and a chemically recycled polyester resin. The physically recycled polyester resin is formed by a plurality of physically recycled polyester chips. The chemically recycled polyester resin is formed by a plurality of chemically recycled polyester chips and mixed with the physically recycled polyester resin. The plurality of chemically recycled polyester chips further include chemically recycled electrostatic pinning polyester chips. The chemically recycled electrostatic pinning polyester chips contain electrostatic pinning additives, and the electrostatic pinning additives are metal salts. Expressed in percent by weight based on a total weight of the polyester film, a content of the electrostatic pinning additives in the polyester film is between 0.005% and 0.1% by weight. The matte polyester film further includes a matting additive.

Matte polyester film and method for manufacturing the same

A white polyester film and a method for manufacturing the same are provided. The method for manufacturing the white polyester film includes: providing a recycled polyester material; physically regenerating a part of the recycled polyester material to form physically regenerated polyester chips having a first intrinsic viscosity; chemically regenerating another part of the recycled polyester material to form chemically regenerated polyester chips having a second intrinsic viscosity less than the first intrinsic viscosity; mixing white regenerated polyester chips, the physically regenerated polyester chips, and the chemically regenerated polyester chips according to a predetermined intrinsic viscosity so as to form a polyester masterbatch material; melting and extruding the polyester masterbatch material to obtain the white polyester film having the predetermined intrinsic viscosity.

White polyester film and method for manufacturing the same

A black polyester film and a method for manufacturing the same are provided. The method for manufacturing the black polyester film includes: providing a recycled polyester material; physically regenerating a part of the recycled polyester material to form physically regenerated polyester chips having a first intrinsic viscosity; chemically regenerating another part of the recycled polyester material to form chemically regenerated polyester chips having a second intrinsic viscosity lower than the first intrinsic viscosity; mixing black regenerated polyester chips, the physically regenerated polyester chips, and the chemically regenerated polyester chips according to a predetermined intrinsic viscosity so as to form a polyester chip raw material; melting and then extruding the polyester chips raw material to form the black polyester film having the predetermined intrinsic viscosity.

A biaxially stretched polyester film and a method for producing the same are provided. The biaxially stretched polyester film includes a polyester resin base layer and a matte layer. The polyester resin base layer includes: (1) 50 to 95 wt % of a polyester resin base material, and an intrinsic viscosity of the polyester resin base material being between 0.5 and 0.8 dL/g; and (2) 0.01 to 5 wt % of a high viscosity polyester resin material, and an intrinsic viscosity of the high viscosity polyester resin material being between 0.9 and 1.1 dL/g. The matte layer includes: (1) 50 to 95 wt % of a polyester resin matrix material, and an intrinsic viscosity of the polyester resin matrix material being between 0.5 and 0.8 dL/g; and (2) 0.3 to 40 wt % of a plurality of filler particles, and the filler particles having an average particle size of between 0.15 &#x3bc;m and 10 &#x3bc;m.

Biaxially stretched polyester film and method for producing the same

A biaxially stretched polyester film and a method for producing the same are provided. The biaxially stretched polyester film includes a polyester resin base layer and a matte layer formed on the polyester resin base layer. The matte layer has a total weight of 100 wt %, and the matte layer includes: (1) 50 to 95 wt % of a polyester resin matrix, an intrinsic viscosity of the polyester resin matrix being between 0.5 and 0.8 dL/g; (2) 0.01 to 5 wt % of a high viscosity polyester resin, an intrinsic viscosity of the high viscosity polyester resin being between 0.9 and 1.1 dL/g; (3) 0.3 to 40 wt % of a plurality of filler particles, the filler particles having an average particle size of between 0.15 and 10 &#x3bc;m.

Growing community of inventors

Taipei, Taiwan

Chia-Yen Hsiao