Kiss-coating

A coating may be achieved by passing the ply between a coating roller and a back-up roll (usually rubber) or by kiss coating whereby the tensioned web makes contact with a coating roller. With certain more difficult materials a nip roll system (hot or... 

Kiss Coaters. In kiss coating fluid is transferred from a rotating applicator roll, called a kiss roll, to unsupported web. There are many types of kiss coaters. The kiss roll can turn in the direction of the web or in the reverse direction, but usually operates in the web direction. Kiss coaters are tension sensitive and are often used to apply excess coating prior to a metering device. 

One of the practical remedies used to reduce blocking is to cover blocking substances with a layer which prevents blocking. This method is frequently used in plasticized PVC in which plasticizer migration causes between-layer-adhesion. This adhesion can be easily eliminated by kiss-coating with lacquers (e.g., films, coated fabrics, etc.)."... 

Fig. 5 Synaptic vesicle recycling in the synapse. For synaptic vesicle recycling, several endocytic mechanisms appear to co-exist in synaptic nerve terminals. In the case of fast kiss-and-ran exo-cytosis/endocytosis, the fused vesicle does not collapse into the membrane but is retrieved directly by a fast process. The molecular machinery underlying this pathway is unknown. Vesicles that have fully collapsed into the membrane are recycled by clathrin-mediated endocytosis. Clathrin, along with other proteins, is involved in membrane invagination (see figure and text) and leads finally to the formation of a constricted pit. The GTPase dynamin (black ring) mediates membrane scission of the constricted pit. After removal of the clathrin coat, two pathways are possible (direct recycling and recycling via the early endosome). In all cases, before fusion the recycled vesicles have to be loaded with neurotransmitters (NT).

In the kiss-and-run mode exocytosis and endocytosis are directly coupled to each other, while in the case of classical complete vesicle fusion, exocytosis and slow clathrin-mediated endocytosis are timely and spatially separated. However, it appears that also in the latter case exocytosis and endocytosis occur coordinated, as both are stimulated by an increase of the cytoplasmic calcium concentration. It has been shown that after calcium entry the enzyme phospho-inositol-5 kinase Iy, which is enriched in the synapse, catalyzes the synthesis of phosphatidylinos-itol (4,5)-bisphosphate and that this mechanism is important for synaptic vesicle trafficking (Di Paolo et al. 2004). As many proteins involved in clathrin-mediated endocytosis are recruited to the plasma membrane by binding to phosphatidylinosi-tol (4,5)-bisphosphate (e.g., amphiphysin, dynamin, epsin, AP-180, and AP-2) it is attractive to speculate that elevated levels of calcium mediate the recruitment of en-docytic proteins to the plasma membrane by this mechanism. The increased level of phosphatidylinositol (4,5)-bisphosphate could be in part degraded by synaptojanin that thereby initiates the disassembly of the clathrin coat. Hence, calcium-induced transient increases in the level of phosphatidylinositol (4,5)-bisphosphate appear to play a central role for coupling exocytosis to clathrin-mediated endocytosis. In addition, it has been demonstrated that calcium also leads to the dephosphorylation of endocytic proteins as amphiphysin, dynamin, and synaptojanin, which in vitro is important for efficient coat assembly (Cousin and Robinson 2001). 

Marosfoi, B., Szabo, A., Kiss, K., and Marosi, G. 2009. Use of organosilicone composites as flame retardant additives and coating for polypropylene. In Fire Retardancy of Polymers, eds. Kandola, K. and Hull, R. Cambridge, U.K. Royal Society of Chemistry, pp. 49-58. 

Air blade Similar to the kiss coater in that the adhesive is applied where the web touches it possible to apply coating uniformly at high speeds limited use with solvent-based adhesives... 

Surface texture or moulded-in configurations can be provided by many plastic moulding processes. Raised surfaces can additionally be kiss blocked or coated. 

L. Sziraki, A. Cziraki, Z. Vertesy, I. Kiss, V. Ivanova, G. Raichevski, S. Vitkova, S. Marinova, T. Marinova, Zn and Zn-Sn alloy coatings with and without chromate layers. Part I corrosion resistance and structural analysis, J. Appl. Electrochem. 29 (1999) 927—937. 

Uses Binder for fine coatings, producing med. soft handle, for kiss roller, paste coating, and foam coating applies. 

CAS 79-10-7 EINECS/ELINCS 201-177-9 Uses Thickener for coating pastes, kiss roller, and foam coaling applies. Properties Whitish paste Tubicoat Verdicker PRA [CHT R. Beitlich GmbH]... 

---