Equipment that stretches films in both the longitudinal and transverse directions simultaneously.
Stretching simultaneously produces films with uniform orientation.

• Stretching of crystalline films

  Typically, highly crystalline resins like PA (polyamide) crystallize further during the cooling process after longitudinal stretching.
  This can lead to breakage in the subsequent transverse stretching process.
  In simultaneous biaxial stretching, both directions are stretched at the same time before crystallization progresses, allowing for uniform stretching.
  

• Stretching of microporous membranes

  Ion exchange membranes, such as those used in lithium-ion battery separators and filtration membranes for liquids and gases, have nanometer-scale pores that form pathways for fluids.
  The stretching process is applied to form these pores, and simultaneous biaxial stretching, which excels in suppressing crystallization and refining pore shape, can be advantageous.

• Stretching of optical films

  In liquid crystal and organic EL panels, many films are used to enhance image clarity.
  These films control light passage by altering molecular orientation, and stretching processes are applied for orientation control.
  Simultaneous stretching is beneficial for achieving uniform or non-oriented films in such applications.

Equipment that stretches films in both the longitudinal and transverse directions separately.
It is widely applicable, from general-purpose to high-performance films.

• Applicable from general-purpose to high-performance films

  The sequential biaxial stretching machine features a simple device structure, a wide range of specifications, and low cost, making it widely used in all fields.

• Excellent productivity with high speed and high strength

  With longitudinal stretching done by roll and transverse stretching by clip, the mechanism is very simple. This allows for high-speed, high-strength, and high-temperature stretching, resulting in excellent productivity.
  Maintenance of the equipment is relatively easy, contributing to the long lifespan of the equipment.
  

• Stretching of general-purpose films

  Many films seen in everyday life undergo some form of stretching treatment.
  These include food containers, packaging containers, wraps, bags, and labels, with many of them stretched either only longitudinally or only transversely.
  Most are made from resins such as PE, PS, PET, and PP, and sequential biaxial stretching equipment is applied for large-scale mass production.

• Stretching of high-performance films

  Many advanced materials, such as functional membranes, optical films, and electronic materials, utilize sequential biaxial stretching.
  By stretching longitudinally first and then transversely, it is possible to reliably control orientation in one direction.
  Moreover, since the longitudinal and transverse directions are independent, the speed, ratio, and temperature of each can be set widely and precisely, enhancing the functionality of the films.