Abstract: The present invention provides a surface processing method for forming recesses and protrusions on a surface of an object to be processed, at least including: a process for attaching a polymer film mask containing a binding resin and organic pigment particles which are contained in the binding resin on the surface of the object to be processed; and a process for etching the surface of the object to be processed to which the polymer film mask has been attached so as to form recesses and protrusions on the surface of the object to be processed. Also, the present invention provides a mask for surface processing used for the surface processing method.

Abstract: This invention provides a surface processing mask having a film mask and a method for manufacturing the same. In the film mask, particles are present as a single layer without overlapping with each other or particles containing first particles and second particles having etching resistance lower than that of the first particles are contained. Moreover, the invention provides a surface processing method including disposing the film mask on the front surface of a process target, and etching the front surface to form irregularities and an optical device having a substrate processed by the surface processing method. Moreover, the invention provides a particle-containing film in which particles are arranged to form a single layer without overlapping with each other and a method for manufacturing the same.

Abstract: A method capable of producing, with industrially realizable production efficiency, microcapsules whose particle diameters are small and whose particle diameter distribution is limited, specifically microcapsules for a heat-sensitive recording material, and a heat-sensitive recording material including the thus produced microcapsules. In this method, microcapsules are produced by the steps of preparing an emulsion from an oil phase that contains a material to be micro-encapsulated and a microcapsule wall material, and an aqueous phase, and micro-encapsulating the materials by using the emulsion, the emulsion preparing step being conducted by using a microreactor having channels whose equivalent diameter is no more than 1 mm, and a heat-sensitive recording material having the thus obtained microcapsules is also provided.

Abstract: A method capable of producing, with industrially realizable production efficiency, microcapsules whose particle diameters are small and whose particle diameter distribution is limited, specifically microcapsules for a heat-sensitive recording material, and a heat-sensitive recording material including the thus produced microcapsules. In this method, microcapsules are produced by the steps of preparing an emulsion from an oil phase that contains a material to be micro-encapsulated and a microcapsule wall material, and an aqueous phase, and micro-encapsulating the materials by using the emulsion, the emulsion preparing step being conducted by using a microreactor having channels whose equivalent diameter is no more than 1 mm, and a heat-sensitive recording material having the thus obtained microcapsules is also provided.

Abstract: A thermo-responsive microcapsule containing a diazo compound or an electron donative dye precursor, wherein the capsule wall of the microcapsule is composed of at least one polymer obtained by polymerization of an isocyanate compound containing an adduct of (A) a compound having one active hydrogen in the molecule and having an average molecular weight from 500 to 20000 and (B) a multifunctional isocyanate having two or more isocyanate groups in the molecule, and a heat-sensitive recording material and a multicolor heat-sensitive recording material comprising a heat-sensitive recording layer containing the microcapsule are disclosed.

Abstract: A heat-sensitive recording material is disclosed. The material comprises a support having provided thereon a recording layer containing one or more diazo compound, a coupling component, and at least one thiohydroquinone derivative as a sensitizing agent.

Abstract: A weft length measuring device comprising a weft storage drum supported against rotation and a weft winding member rotatable around the drum to wind a weft thereon is disclosed.According to this invention, the measuring device further comprises a length measuring control or retaining pin and a weft unwinding control pin arranged a pair at axially spaced positions in the weft storage drum and operated by a cam mechanism so as to alternately project out of the weft storage drum at appropriate times in the weft inserting cycle, and a weft transfer member arranged on the outer periphery of the weft storage drum to cause the weft for one weft insertion, the length of which has been measured by the rearwardly disposed rearward, length measuring pin, to be transferred toward the forward, weft unwinding control pin. During the weft inserting operation during which the weft wound on the drum is unwound, a succeeding weft for the next weft insertion can be continuously and exactly wound on the storage drum.