摘要:
A polymeric film having a plurality of perforations, which are specially structured and arranged is described. The polymeric film provides a strong, high-tensile strength material that permits hand tearing of the film along a desired tear path, providing a controlled tear propagation line. The polymeric film may also be incorporated into a multi-layer film having cloth-like properties of strength and tear propagation, and is suitable for use various adhesive tape applications. Methods of making the polymeric film are also disclosed.
摘要:
A polymeric film having a plurality of perforations, which are specially structured and arranged is described. The polymeric film provides a strong, high-tensile strength material that permits hand tearing of the film along a desired tear path, providing a controlled tear propagation line. The polymeric film may also be incorporated into a multi-layer film having cloth-like properties of strength and tear propagation, and is suitable for use various adhesive tape applications. Methods of making the polymeric film are also disclosed.
摘要:
Bei der Fertigung von Packungen mit Außenumhüllungen, die einen Aufreißstreifen (12) aufweisen, sind diese bzw. fortlaufende Materialstreifen (18) zum Abtrennen der Aufreißstreifen (12) mit Bedruckungen, Markierungen (24) etc. versehen. Vorzugsweise sind außerdem die Folienbahnen (13) mit Markierungen, Bedruckungen bzw. Druckmarken (25) versehen. Mit Hilfe von Tastorganen wird die Relativstellung aufgrund dieser Bedruckungen erkannt und danach der Antrieb der Folienbahn (13) und/oder des Materialstreifens (18) gesteuert.
摘要:
A reducible volume container (12) includes a package wall having an interior surface and an exterior surface with at least one tear strip (16) formed in the package wall. The tear strip is defined by a pair of generally parallel frangible tear lines. Each tear line includes a pair of generally parallel creases formed on the interior surface of the package wall and a linear cut formed in the exterior of the package wall. The linear cut is disposed in an area between the parallel creases and has a depth extending only partly through the thickness of the package wall.
摘要:
A reducible volume container (12) includes a package wall having an interior surface and an exterior surface with at least one tear strip (16) formed in the package wall. The tear strip is defined by a pair of generally parallel frangible tear lines. Each tear line includes a pair of generally parallel creases formed on the interior surface of the package wall and a linear cut formed in the exterior of the package wall. The linear cut is disposed in an area between the parallel creases and has a depth extending only partly through the thickness of the package wall.
摘要:
A foldable plastic slider (10) closes or opens a plastic fastener including first and second profiles. The slider comprises a transverse support member (50) including first and second opposing sides. First and second legs (56, 58) depend from the respective first and second opposing sides of the member. A first separating finger (54) extends from an interior surface of the member and opens the fastener. The second separating finger (52) extends from the interior surface of the member. First and second wings (60, 62) are hingedly attached to the respective first and second opposing sides and have respective first and second openings receiving the respective first and second legs and respective first and second cross pieces (64, 66) with a latch (64a, 66a). The first and second wings are folded relative to the member and each of the latches engages one of the respective legs to install the slider on the fastener.
摘要:
An easily tearable plastic film (1) having a thin-walled part therein for easy tearing, said thin-wall part being made by incorporating strings (2) into the plastic film during its production by melt extrusion and a method for producing said film are disclosed.
摘要:
An apparatus for forming a tab on a tearing tape (6) for a packing film (e) for a pack of cigarettes, etc. and printing an identifying color or pattern on the tab. A cutter (21) is provided on a roller (9) facing a roll (12) for supporting a bonded assembly (a) of a web for forming a plurality of tearing tapes and a web for forming a plurality of packing films. The cutter has a generally U-shaped cutting edge for cutting a tab for each tearing tape. A printing plate (10) is disposed movably in the cutter for printing an identifying color or pattern on each tab simultaneously when it is cut. An inking roller (11) is provided on the opposite side of the cutter from the supporting roll for supplying a printing ink to the printing plate. The printing plate has a printing surface surrounded by the cutting edge and projecting slightly therefrom when the printing plate is in its inoperative position. A spring urges the printing plate to stay in its inoperative position, but allows it to retract to enable the cutting edge to cut each tab, while the printing surface prints an identifying color or pattern thereon simultaneously.