Abstract:
The invention relates to web guiding, more particular, to web guiding. A guiding device for contact-free guiding a web is provided with the device having a surface for facing the web and a multitude of gas outlets disposed in the surface and adapted for providing a hover cushion for the web. Further, an apparatus for coating a web and a method for contact-free guiding a web is provided that comprises moving the web over a surface; and emitting a multitude of gas streams from the surface thereby generating a hover cushion between the surface and the web. Further, a method for producing a thin-film solar cell is provided that comprises a method for contact-free guiding a web according to embodiments described herein. The method for producing a thin-film solar cell further comprises depositing a back contact on the web and depositing a transparent and conductive oxide layer.
Abstract:
A web guide control for guiding a web, the web guide control having a first guide roller (201) and a second guide roller wherein the first guide roller (201) comprises an adjustment unit (310), the second guide roller comprises a tension measurement unit (300), and the web guide control comprises a data connection for supporting the adjustment unit with tension data from the tension measurement unit.
Abstract:
The invention relates to a method in connection with curtain coating a fibrous web (W), said method comprising applying in a processing line (1) to at least one side of the fibrous web (W) at least one layer of coating agent by a curtain coating method. The method comprises adjusting a position of the fibrous web (W) in a cross-direction (CD) of the processing line (1) by means of guide elements (4) arranged for the fibrous web (W) for controlling a relative position between the fibrous web (W) and a coating curtain (22) from a curtain coater (20) in the cross- direction (CD) of the processing line (1). The invention relates also to an arrangement for implementing the method.
Abstract:
The invention relates to a method and device for protecting core material using protective material, in which method the core material (4) is coated with protective material (3) . According to the invention, the method comprises the step of un-spooling (1) a cut-to- size protective material ribbon from a reel onto a rolling-up unit; the step of transferring the rolling- up unit and the step of coating (2) the core material with a protective material ribbon. At the step of un-spooling (1) the protective material ribbon, a uniform, cut-to-size protective material ribbon (3b) is un-spooled from one or more protective material ribbon reels (5) onto the rolling-up unit (6) ; and if necessary, the ribbons from different reels are joined together (8) by their ends to achieve a desired cut-to- size protective material ribbon. At the step of transferring, the formed rolling-up unit (6) , having a ribbon length of the protective material (3b) necessary in the coating of the core material, is removed and transferred to the step of coating (2) the core material. At the step of coating (2) the core material, the protective material ribbon is guided from the rolling-up unit (6) simultaneously with the core material (4) so that the core material is arranged within the protective ribbon.
Abstract:
A system and method for controlling curl in multi-layer webs. The method can include providing a coated web, bending the web to induce a strain or pre-curl in the web, and curing the coating to form a multi-layer web. Some coatings shrink at least partially when cured such that curing the coating induces a curl in the multi-layer web. Bending the web occurs prior to curing the coating, and the pre-curl can be configured to at least partially counteract the curl induced by curing to form a multi-layer web having a desired curvature. The system can include a curing section configured to cure a coating, and can further include a web bending section configured to bend the web to induce a strain or pre-curl in the web. The web bending section can be positioned upstream of the curing section such that the web is bent prior to the coating being cured.
Abstract:
In order to transfer an image-type coating from a carrier film to a printed sheet, an image-type adhesive is applied to the printed sheet. In a film transfer module (2), the carrier film comprising the image-type coating is rolled over the printed sheet using contact pressure such that the coating adheres to the adhesive sections, thus forming an image. In order to improve the function, simplify the device and increase flexibility, a holder for film rolls of the transfer foil (5) is provided, allowing simplified handling.
Abstract:
Abstract An apparatus and method for retaining individual sheets of substrate in a curved configuration during coating or printing is disclosed.
Abstract:
A method includes applying a coupling agent solution to a major surface of a continuously moving glass ribbon to form a coupling agent coated region of the glass ribbon. The glass ribbon is a flexible glass ribbon having a thickness of at most about 300 µm. The method includes heating the coupling agent coated region of the glass ribbon to form a coupling agent treated region of the glass ribbon and winding the glass ribbon onto a collection roll. A glass ribbon has a thickness of at most about 300 µm and a major surface. At least a portion of the major surface includes a coupling agent treated region. Upon forming a polymeric layer on the coupling agent treated region at least five months after forming the coupling agent treated region, the polymeric layer has a peel force of at least 200 gf/in.