Skc Co., Ltd.

Skc, Inc.

Sk Microworks Co., Ltd.

Sk Microworks America, Inc.

Microworks America, Inc.

Yong Deuk Kim

Chul Kyu Kim

Hyuk Soo Lee

Jung Kyu Lee

Eugene Jung

Jaehyong Son

Joo Ho Yang

Dae Yong Shin

Seung Kyun Kim

Embodiments relate to a polyester film, preparation method thereof and method for reproducing polyethyleneterephthalate (PET) container using same, the crystallization temperature (Tc) of the polyester film is not measured or is 70° C. to 130° C., as measured by differential scanning calorimetry, whereby it is possible to easily control the crystallinity. Accordingly, the polyester film has excellent shrinkage characteristics and recyclability, and clumping rarely occurs even if it is dried at high temperatures for a long period of time in the regeneration process.

Polyester film, preparation method thereof and method for reproducing polyethyleneterephthalate container using same

The embodiments relate to a polyester film, to a process for preparing the same, and to a process for regenerating a polyethylene terephthalate (PET) container using the same. The polyester film has excellent seaming characteristics and recyclability by virtue of controlled crystallinity, whereby clumping rarely occurs even if it is thermally treated for a long period of time in the regeneration process.

Embodiments relate to a polyester-based film and a process for regenerating a polyester-based container using the same, which not only solve the environmental problems by enhancing the recyclability of polyester-based containers but also are capable of enhancing the quality, yield, and productivity. When the polyester-based film is cut into a size of 1 cm in width and 1 cm in length, immersed in an aqueous solution of sodium hydroxide (NaOH) having a concentration of 1% by weight, and stirred for 15 minutes at 85&#xb0; C. at a speed of 240 m/minute, the average particle size of the component of the printing layer separated from the base layer satisfies 15 &#x3bc;m or more. Thus, it is possible to enhance the quality of the regenerated polyester-based chips produced from the polyester-based container provided with the polyester-based film.

Polyester film and method for reproducing polyester container using same

Growing community of inventors

Gyeonggi-do, South Korea

Yong Deuk Kim