An optical fiber re-coating device of the invention includes an optical fiber coater that includes: an inner glass opening-and-closing unit including: a pair of glass members having grooves formed thereon; and a pair of mounting tables which are coupled to each other via a first hinge; and an outer opening-and-closing unit including: a pair of covers which are coupled to each other via a second hinge, one of the paired covers having a magnet provided therein, the other of the paired covers having a magnet catch provided therein, the magnet and the magnet catch facing each other when the paired covers are in a closed state; and light sources that cure a resin used to coat an optical fiber provided in the inner glass opening-and-closing unit and are provided in the respective paired covers.

An optical fiber re-coating device of the invention includes an optical fiber coater that includes: an inner glass opening-and-closing unit including: a pair of glass members having grooves formed thereon; and a pair of mounting tables which are coupled to each other via a first hinge; and an outer opening-and-closing unit including: a pair of covers which are coupled to each other via a second hinge, one of the paired covers having a magnet provided therein, the other of the paired covers having a magnet catch provided therein, the magnet and the magnet catch facing each other when the paired covers are in a closed state; and light sources that cure a resin used to coat an optical fiber provided in the inner glass opening-and-closing unit and are provided in the respective paired covers.

A method comprising: digital printing a heat curable aqueous composition onto a substrate, wherein the composition comprises: (a) at least one water soluble synthetic alkali metal silicate; and (b)(i) at least one pigment or (b)(ii) at least one additive selected from aluminum oxide, ceramic microspheres, recycled ground glass, or calcium carbonate; and wherein the substrate comprises a material selected from glass, ceramic, textile, polymeric, metal, wood, or a combination thereof.

The present disclosure relates to non-metallic articles that can be burner shields having grease flow control and/or chemical resistance. The present disclosure also relates to glass-ceramic burner shields that can have grease flow control and/or chemical resistance, and preferably both.

The present disclosure relates to non-metallic articles that can be burner shields having grease flow control and/or chemical resistance. The present disclosure also relates to glass-ceramic burner shields that can have grease flow control and/or chemical resistance, and preferably both.

Described herein is a method of forming a reflective article comprising applying an anti-fog composition to a major surface of a reflective substrate, the anti-fog composition comprising an anti-fog agent and a liquid carrier and having a solid's content between about 15 wt. % to about 35 wt. % based on the total weight of the anti-fog composition, and subsequently heating the reflective substrate to a temperature of about 80° F. to about 325° F. for a drying period, and wherein the liquid carrier comprises water and a hydroxyl-containing component.

Described herein is a method of forming a reflective article comprising applying an anti-fog composition to a major surface of a reflective substrate, the anti-fog composition comprising an anti-fog agent and a liquid carrier and having a solid's content between about 15 wt. % to about 35 wt. % based on the total weight of the anti-fog composition, and subsequently heating the reflective substrate to a temperature of about 80° F. to about 325° F. for a drying period, and wherein the liquid carrier comprises water and a hydroxyl-containing component.

A method for preparing optical fibers formed with high-particle-coated porous polymeric outer coating layer is provided. The method includes preparing a coating suspension solution by dispersing a plurality of particles into an organic solvent system, immersing one or more optical fibers into the coating suspension solution, removing the one or more optical fibers from the coating suspension solution to form high-particle-coated porous polymeric outer coating layer after drying. Concentrations and compositions of the particles in the coating suspension solution, concentrations and compositions of the organic solvent system, the period of time of immersing, or the external environment are adjusted such that the optical fibers is formed with high-particle-coated polymeric outer coating layers having desirable coating masses, coating thicknesses, or coating morphologies.

A method for preparing optical fibers formed with high-particle-coated porous polymeric outer coating layer is provided. The method includes preparing a coating suspension solution by dispersing a plurality of particles into an organic solvent system, immersing one or more optical fibers into the coating suspension solution, removing the one or more optical fibers from the coating suspension solution to form high-particle-coated porous polymeric outer coating layer after drying. Concentrations and compositions of the particles in the coating suspension solution, concentrations and compositions of the organic solvent system, the period of time of immersing, or the external environment are adjusted such that the optical fibers is formed with high-particle-coated polymeric outer coating layers having desirable coating masses, coating thicknesses, or coating morphologies.

One of embodiments relates to an optical fiber in which an alkali metal element is efficiently doped to its core to suppress transmission loss from increasing. A mean concentration or a concentration distribution of the alkali metal element is adjusted such that 0.48 or less is obtained as an weighted value obtained by weighting a distribution of field intensity of guided light at a wavelength of 1550 nm, with respect to a radial direction distribution of a ratio I.sub.D2/I.sub.ω3 of an intensity I.sub.D2 of Raman scattering light by a silica three-membered ring structure and an intensity I.sub.ω3 of Raman scattering light by a Si—O stretching vibration, in a cross-sectional region having a diameter of 20 μm.