Abstract: A cleaning unit of this invention includes a body and a cleaning member. The body includes an upper face. The upper face subsides to form a receiving recession for receiving a slit nozzle of the slit coater. The receiving recession includes a sidewall and a bottom face. The sidewall includes a first injection hole. A cleaning material is sprayed via the injection hole. The cleaning member eliminates dregs of the material attached on the slit nozzle of the slit coater. The cleaning member is attached on the bottom face of the receiving recession. According to the present invention, the slit nozzle is effectively cleared, so that the substrate is uniformly coated with the photosensitive layer, and the photosensitive layer is not scratched.

Abstract: A tube mat made of elastomer material in the form of an extrudate includes first and second front faces which are arranged in a vertical or angled manner in relation to the extrusion direction. A plurality of tubes extend in parallel in the extrusion direction between the two front faces. At least a portion of each tube is closed at adjustable distances whereby a closed air column respectively is formed and whereby the tube seal together with the tube mat forms a one-piece elastomer composite. A method for producing the tube mat is also provided in which after the extrusion, the tubes are closed at certain points by means of pressure and a pad roller, whereby beads and closing webs are produced. The pad roller is provided with pins that are distributed over the circumference of the roller. Vulcanization is carried out subsequently.