News

2021/1/22
The main properties of PET film

1. Mechanical properties (1) Stretchability The tensile strength, elongation, elastic modulus and stress at 5% of the PET film. The tensile properties of PET film vary significantly with pro...

2021/1/18
Horizontal and vertical stretching of biaxial stretching

1. Longitudinal stretch The longitudinal stretching process includes heating and stretching the non-oriented cast substrate in the longitudinal direction so that the molecular chains are aligned in...

2022/4/8
PET biaxial stretching step stretching process

Stepwise biaxial stretching (LD¡úTD stretching) As mentioned in the past, simultaneous biaxial stretching is not suitable for the production of PET film. Most PET films are produced by a stepwise biaxi...

  • PET biaxial stretching stepwise stretching process
  • 2022/4/8
    PET film biaxial stretching process simultaneous stretching

    There are 20 different companies all over the world producing PET film. PET film is characterized by good quality and low price. It has many excellent properties, such as: high mechanical strength, ...

    2021/7/9
    Warmly welcome the AVIC technical expert group to Sumino

    On January 2, 2021, the China Aviation Industry Technology Group was invited by Nanjing Sumino Precision Machinery Co., Ltd. to conduct technical exchanges in the assembly workshop. ...

    2020/12/29
    How is BOPET biaxially oriented film produced?

    How is PET biaxially oriented film produced? Various processing technologies are developed to produce unidirectional and biaxially oriented PET films. Typical processing includes the...

    2022/4/8
    Nanjing Sumino Sinoma Technology PTFE Membrane Expert Review Meeting

    NANJING SUMINO&SINOMA TECHNOLOGY PTFE MEMBRANE EXPERT REVIEW MEETING At 9 o'clock on the morning of December 24, 2020, under the leadership of a group of leaders, the...