Patents

Biaxially Oriented Polyester Film

June 7, 2005

A biaxially oriented polyester film prepared by biaxially drawing a polyester sheet was patented. The film has a glass transition temperature (Tg) of 60° C. or higher, in the longitudinal and transverse directions, wherein the biaxially oriented film has a specific gravity of 1.38 or less and a dead-fold retainability of at least 60% defined as below: Dead-fold retainability (%)=(180?ı)?100/180 wherein ı is an angle formed when a polyester film sheet is folded under a pressure of 30 psi for three seconds at room temperature and the folded sheet is kept at a vertical position for one hour.
  • Advances in Ultrasonics

    Advances in Ultrasonics

    Tara Olivo, associate editor||January 2, 2017
    Ultrasonic suppliers’ improved bonding systems allow for softer, more comfortable absorbent hygiene products.

  • Private Label: Not About No Frills Anymore

    Karen McIntyre, Editor||January 2, 2017
    Competition in the diaper market focuses on quality, not value.

  • Hygiene Machinery Review

    Karen McIntyre, Editor||January 2, 2017
    The growing importance of adult incontinence plus a widespread need for increased flexibility has changed the game for makers