A tube material is formed by continuously extruding a thermoplastic resin material in the shape of a cylinder that has a thickness of 100 μm and a circumferential length of 800 mm. After that, in a polishing process, the tube material is rubbed with a lapping tape of #2000 while being rotated in one direction at a fixed speed, so that circumferential stripes are formed on the outer circumferential surface of the tube material. Then, the circumferential stripes are thermally transferred by pressing the outer circumferential surface of the heated tube material against a mold surface that is finished in the shape of circumferential stripes by a thermal transfer process.

The invention is also directed to a coextruded film comprising a core layer which comprises between 20 wt. % and 99 wt % znLLDPE or HDPE, wherein the core layer further comprises filler materials; and outer layers on each side of the core layer comprising between 50 and 99 wt % of one of LLDPE, LDPE, blends of LLDPE and LDPE, or mLLDPE; wherein the film contains relatively opaque embossed regions and relatively clear unembossed regions, wherein the opaque embossed regions comprise embossment-induced cavities and the filler materials.

A system and method for reducing draw resonance of a plastic material in molten state, so-called melt, leaving an extrusion group of a plant for the production of plastic film, includes at least one thermostatically-controlled cylinder, having an embracement angle of the melt on the cylinder that is adjustable on the basis of the process rate, i.e., the linear movement speed of the plastic film, and/or on the basis of the temperature measured in the proximity of or in correspondence with the clamping area of the melt in a thermoforming, calibration and cooling group included in the plant and positioned downstream of the system.

A system for dispensing a substance in a form of a bead on a surface in a progression direction includes a dispenser having: a leading edge, a contact portion comprising two contact points with the surface, and a trailing edge that extends between the two contact points and terminates therein. The system is configured to move the dispenser along a virtual travel plane, which is parallel to the path and passes through the two contact points, while maintaining the contact portion in communication with the surface as the substance is being dispensed. The system is also configured to monitor a leading portion of the bead and to generate a signal responsive to at least one characteristic of the leading portion, wherein the leading portion is located ahead of a portion of the leading edge in the progression direction along the path. The system is further configured to control, responsive to the signal, at least one of a speed of the dispenser along the path or a flow rate of the substance to the dispenser to provide a substantially uniform cross-sectional shape of the bead along the path.

The invention relates to a method for edge coating on work pieces, comprising the following steps: inducing a relative movement between a work piece (W) and an application unit (10), which application unit (10) is provided for applying a mass; setting an application region for applying the mass, in particular in accordance with the width of the edge of a work piece to be provided with the mass; applying the mass to an edge of the work piece (W) to form a three-dimensional body. Said work pieces can be, in particular elements or parts from the furniture or components industry.

In at least one embodiment, a microporous membrane having a moderate to high water vapor permeability and high liquid water penetration resistance is disclosed. The microporous membrane may be used in building applications, including as or as part of a building wrap, a rain screen, a roofing underlayment, a flashing, a sound proofing material, or an insulation material. The microporous membrane may include at least one thermoplastic polymer, at least one filler, and at least one processing oil. The microporous membrane may be flat or may have ribs. The microporous membrane may include at least one scrim component. A method for forming the microporous membrane is also disclosed.

A wood-plastic/lumber composite co-extrusion feeder includes a frame, wherein at least one group of toothed conveying units, a tooth mark milling unit for milling tooth marks on an outer surface of a lumber, and a lumber co-extrusion mold are arranged on the frame in sequence, each toothed conveying unit includes a lower toothed pressure roller installed on a first fixed bearing seat and an upper toothed pressure roller installed on a first movable bearing seat, and after the first fixed bearing seat and the first movable bearing seat are connected by an adjustment unit, a first conveying channel having an adjustable height is formed between the upper toothed pressure roller and the lower-toothed pressure roller.

Disclosed are methods for forming a double-sided optical sheet, and a vehicle lamp assembly having the double-sided optical sheet integrated therein. A first optical pattern is imprinted on a first side of a material, and a second optical pattern is imprinted on a second side of the material, opposite the first side. The first and second optical patterns are thereby formed on opposing sides of the same sheet. When oriented adjacent a light source, the double-sided optical sheet homogenizes light emitted from the light source. For a light source having a plurality of lighting elements, the double-sided optical sheet is configured to blend light emitted from the plurality of lighting elements to form one homogenous beam of light output resulting from a single light-modifying member.

An apparatus for forming a ruffled moldable material includes: a body including an interior space and an extrusion opening that passes through from the interior space to an exterior of the body; and a ruffle formation structure that at least partially covers the extrusion opening, the ruffle formation structure including: a first side; a second side opposite the first side; a first edge attached to the body; and a second edge. In operational use, extruded moldable material is emitted from the extrusion opening along an extrusion direction, and the extruded moldable material interacts with the ruffle formation structure to form the ruffled moldable material by compressing at least some of the extruded moldable material along the extrusion direction.

Systems for manufacturing a composite extruded product formed of a substrate and a film. The system includes an extruder, a film application section for integrally bonding the film to the substrate, a heating section for increasing the temperature of the composite extruded product, an embosser for embossing a pattern into the composite extruded product, and a cooling section for cooling the composite extruded product. The cooling section applies pressure to the composite extruded product and sprays cooling fluid onto the composite extruded product such that the composite extruded product is cooled and the pattern embossed into the first surface is permanently set.