№ US20260001695A1发明专利
审中PACKAGING FILM
PACKAGING FILM
A packaging film that is easy to heat-seal and has excellent anti-blocking performance. The packaging film has one surface formed of an iron powder-blended propylene-based resin layer, in which the one surface is a rough surface derived from the iron powder, and the rough surface has a surface roughness Sa (ISO25178) in a range from 1.0 to 10 μm.
❖Toyo Seikan Co., Ltd.Takayuki ISHIHARA; Kousuke UEDA; Takeru HAMABE§ 1/8 权利要求B65D 75/26, B32B 27/8, B32B 27/20 +38