摘要:
Optical diffusion element comprises a layer of polymer particles self-fused together, each polymer particle having a refractivity varying from the center to the periphery thereof and a component for the periphery having a glass transition temperature that is desirably lower than 100° C. The optical diffusion element is desirably provided with an optical transparent layer in contact with the polymer particle layer.
摘要:
A photographic material comprising a hydrophobic support is described, having thereon a first subbing layer formed of a polymeric compound and a second subbing layer comprising a hydrophilic layer containing water-soluble methyl cellulose having a degree of substitution less than 2.5 or water-soluble polyvinyl alcohol having a degree of hydrolysis less than 97 mole % on the first subbing layer.
摘要:
A photographic material comprising (I) a styrene-based polymer support having thereon a subbing layer which comprises a partial or complete reaction product of (a) a copolymer of styrene or vinyl acetate with maleic anhydride with (b) water or a hydroxy compound such as alcohol and (II) a photographic layer comprising a hydrophilic resin binder bearing on the subbing layer, wherein a compound containing two or more epoxy groups per molecule is contained in the subbing layer or in both of the subbing layer and the photographic layer.
摘要:
A heat transfer recording medium composed of a support having provided thereon (a) microcapsules containing an oil-soluble dye dissolved in an organic solvent and (b) a sensitizer that is solid at ordinary temperature and capable of melting on heating to swell the microcapsule wall and release the dye. This heat transfer recording medium can be used as a sheet in, for example, a facsimile and a printer, for excellent gradation in printed images, and reduced fogging.
摘要:
Microcapsules, a process for preparing the same, and a pressure-sensitive recording paper containing the same are disclosed. The microcapsules are prepared by a process which comprises polymerizing melamine and formaldehyde, or polymerizing initial condensates of melamine and formaldehyde, around hydrophobic oil droplets containing a polyisocyanate or a prepolymer of polyisocyanate, wherein a polyhydroxy compound is incorporated into said hydrophobic oil droplets prior to microencapsulation, thereby producing a sturdy double wall made of of polyurethaneurea film (inner wall) and melamine/formaldehyde resin film (outer wall).
摘要:
A multicolor heat-sensitive recording material is disclosed, comprising a support having carried thereon at least two colorless or light-colored color formers capable of developing different colors and color developers capable of reacting with said color formers upon heating to develop colors, wherein at least one of the color formers and color developers is encapsulized, at least one of the color formers is a diazo compound which is substantially decomposed by light, and at least one of the other color formers is a compound which is not substantially decomposed by light. The material provide a multicolor image having excellent hues and sharpness without color smearing and is free from undesired color formation before or after recording.
摘要:
The present invention relates to a method for treating the surface of a polymer web comprising:(1) heating a polymer web by vacuum glow discharge treatment; and(2) cooling the resulting polymer web of step (1) at a higher temperature than the glass transition point of the polymer such that T.sub.n .gtoreq.T.sub.n-1 -40, wherein n is a positive integer, T.sub.0 is the initial temperature (.degree.C.) of the polymer web immediately after the vacuum glow discharge treatment of step (1) and T.sub.n is the temperature (.degree.C.) of the polymer web that has been drawn past the nth cooling roll.
摘要:
A process for preparing a recording material comprising a support and a recording layer on the support, said recording layer containing a coupling agent and containing microcapsules containing a diazo compound, wherein a microcapsule dispersion which is coated on the support to form the recording layer is prepared by preparing an emulsion containing at least a diazo compound and a microcapsule wall-forming substance, forming microcapsule walls on emulsion droplets, and removing diazo compound remaining unincluded in the microcapsules formed from the emulsion.
摘要:
This invention discloses a heat sensitive recording material having a heat sensitive layer on a support; either of a color forming material or a developer which are contained in the heat sensitive layer is encased in a microcapsule. Since a plasticizer for a wall material of the microcapsule and a compound having an effect to depress the melting point of at least one member out of developers, a color forming reaction is carried out smoothly under a recording condition, therefore, a density of an obtained image is sufficient. Especially good results are obtained when a macromolecule substance selected from a group of polyurethane, polyurea, polyamide, polyester and polycarbonate is used as a wall material of the microcapsule. A coloring reaction assistant may be contained in any place of the heat sensitive layer.A preferable plasticizer can be selected from a group of phenols, alcohols, ureas, sulfonamides, carbamates and aromatic methoxy compounds.
摘要:
A photographic light-sensitive material composed of a support having a subbing layer and a silver halide emulsion layer formed thereon. The subbing layer comprised of a first subbing layer disposed to the support and a second subbing layer containing (i) a gelatin derivative and/or (ii) a polymer having the recurring unit shown by general formula (I) and/or (II) ##STR1## wherein R is a hydrogen, an alkyl group having 1 to 6 carbons, or a halogen; M is hydrogen, an alkali metal, an alkaline earth metal, or an organic base; X is an alkyl group having 1 to 6 carbons, an alkoxy group having 1 to 6 carbons, an alkylamino group having 1 to 6 carbons, or a halogen; m is 0, 1 or 2; and n is 1 or 2 ##STR2## wherein R' is hydrogen or an alkyl group; X' is a hydrogen, a halogen, a nitro group, a cyano group, an alkyl group, an alkoxy group, an alkoxycarbonyl group, an alkylsulfonyl group, an aryloxy group, an acyl group, an acyloxy group, or an acylamido group; m' is 0, 1 or 2; and n' is 1 or 2.