The invention relates to an apparatus for providing marks on extruded films, in particular on stretched films, which are exiting an extrusion lip of a film extruder and a respective method. The apparatus comprises at least one nozzle means for directing a gas stream, preferably an air stream to a surface of the film exiting the extrusion lip of the film extruder, wherein the nozzle means are configured and arranged in such a manner that the gas stream locally causes a cooling of the extruded film to create a local mark (FIG. 1).

The presently disclosed subject matter is generally directed to packaging materials having at least one antimicrobial agent and methods of making thereof. A multilayer film including a sealant layer with a polymeric substrate, a lauroyl arginate moiety, and an ethylene methacrylic acid copolymer is disclosed. Such packaging materials are suitable for use in the packaging of food products to control microbial contamination.

Provided is a thermoplastic resin film having at least one of film surfaces being excellent in printability, having sufficiently low internal haze, and exhibiting a favorable matte appearance. A thermoplastic resin film according to the present invention composed of a thermoplastic resin composition (C) including at least one kind of a thermoplastic resin (R) and fine particles (P) having a volume average particle diameter of 0.5 to 15 m and a refractive index different from that of the thermoplastic resin (R) by 0.02 or more. At least one of film surfaces satisfies formulas (1) and (2).
G.sub.L60(1),
G.sub.L35G.sub.HG.sub.L10(2)
(In the formulas (1) and (2), G.sub.L is 60 gloss (%) at 20 C., G.sub.H is 60 gloss (%) when the thermoplastic resin film is heated at a temperature 10 C. higher than a glass transition temperature of the thermoplastic resin composition (C) for 30 minutes, then cooled to 20 C.).

A method of manufacturing a material strand (100), particularly for sealing, trimming or fastening of doors (11) or windows (12) of a motor vehicle (10), comprises the steps of: a) extrusion of an extruded strand (200); b) testing the extruded strand (200) after the extrusion, thereby identifying first segments (210) comprising manufacturing defects (211) and second segments (220) being free from manufacturing detects; c) cutting out the first segments (210) from the extruded strand (200), thereby causing faces (222) at the second segments (220); d) joining cut faces (222) of second segments (220) to obtain a joint (102) and to form a material strand (100), the joint (102) having a position within the material strand (100), wherein a minimum distance (d) is maintained between the positions of adjacent joints (102); e) identifying the position of each joint (102); and f) forming a transport unit (110) having a predetermined maximum length by winding the material strand (100).

A web material processing machine (10) for producing a multi-layered material (12), especially a multi-layered packaging material (13), is presented. It comprises a first vacuum coating unit (28) for deposing a film of a first coating material on a web material (16) to be processed. Moreover, it is equipped with an extrusion coating unit (32) for extruding a film of an extrusion material on the web material (16). The extrusion coating unit (32) is positioned behind the first vacuum coating unit (28) with respect to a processing direction (20). Additionally, a method for producing a multi-layered web material (12) is explained. Furthermore, a multi-layered packaging material (13) is described.

The present invention relates to a medical device having an improved ultrasound visibility and a very smooth surface, to methods for producing the device according to the invention and to the application of the device in therapeutic and diagnostic interventions. The improved ultrasound visibility is achieved by bubbles or closed cavities in an inner polymer layer.

The invention relates to an apparatus for automatically analyzing extruded films, in particular stretched films, wherein a neck-in portion is formed at each of both edges of the film at a specific distance from an extrusion lip of a film extruder along the longitudinal transport direction of the film, and a respective method. The apparatus comprises two edge detectors being arranged along a first line substantially transversal to the longitudinal direction and being spaced from each other by a specific distance, wherein each one edge detector is configured to detect, preferably to continuously detect the lateral position of one respective edge of the neck-in portion of the film, a calculation means for determining the spatial relation between at least one lateral position at the extrusion lip and a respective lateral position at the neck-in portion on the basis of the two lateral positions of the edges of the neck-in portion of the film.

Provided is a method of making a sterilized flat plastic bag including the steps of: forming a roll of a tubular polymeric film in a blown film extrusion process, providing the roll of tubular polymeric film to a bag making process, and forming a sterilized flat plastic bag, wherein the tubular film is not slit in the longitudinal direction during any step of the method, and therefore avoids the necessity of a separate sterilizing step. Also provided is a sterilized flat plastic bag made according to the foregoing method of making and a method of using such a sterilized flat plastic bag to collect and retain a product sample and eliminate product contamination. The sterilized plastic bag made according to the above method provides improved tear strength and resistance to rupture when containing product.

Methods, apparatus and articles of manufacture are shown for creating a soft textile expanded apertured film.

A method for fabricating a flexible LED light string includes steps: 1: core strip extrusion molding; 2. LED light bead hole punching and cutting mark labelling; 3. inserting the flexible LED PCB into the core strip; 4. extrusion molding for light string sheath, i.e. diffusing strip. With the method, the core strip can has a variety of cross sectional shapes according to design needs. In the same way, the sheath can has a variety of cross sectional shapes according to design needs, and has a variety of combinations of materials and colors through multiple-color extrusion molding, for example, the sheath mixed with colored decorative strips, and non-transparent partially.