Abstract: An ink-jet recording sheet comprising a support and an ink-absorbable layer is disclosed. The ink-absorbable layer is a void layer containing fine inorganic particles having a dispersion degree of no more than 2 and a hydrophilic binder. The ink-jet recording sheet has a specular gloss specified by JIS Z8741, of at least 20 percent at 60 degrees of the surface of said ink absorbable layer, and exhibits the specular gloss such that 60-degree specular gloss of an ink-recorded part is 3 percent more than that of a nonink-recorded part.

Abstract: A method of treating hair is disclosed. The method comprises applying a hair treatment composition comprising at least one oil agent and a solvent and having a water content of 20% by weight or lower to dry hair, allowing the hair to stand for 3 to 120 minutes or warming the hair at a prescribed temperature for a prescribed time, and washing the hair treatment composition away.

Abstract: An ink-jet recording sheet comprises a support, and provided thereon, an ink absorption layer containing solid fine particles, a hydrophilic binder, and oil drops in an amount of 5 to 50 weight % based on the solid fine particle weight, the content ratio by weight of the solid fine particles to the hydrophilic binder being 2 to 200, wherein the oil drops comprise an hydrophobic organic compound having a melting point of 40° C. or less or polymer particles having a glass transition temperature of 40° C. or less.

Abstract: An ink-jet recording method is disclosed, including recording on an ink-jet recording sheet containing a non-water-absorbing support and provided thereon an ink absorbing layer containing polyvinyl alcohol, fine inorganic particles and boric acid or its salt, using an ink-jet recording apparatus and a water-based recording liquid containing a high boiling solvent compound having a hydroxy group, wherein the amount of boric acid or its salt contained in the ink absorbing layer of the recording sheet (X), the amount of a hydroxy group contained in polyvinyl alcohol contained in the ink absorbing layer of the recording sheet (Y) and the maximum amount of the the hydroxy group contained in the high boiling solvent contained in a unit area when recorded on the recording sheet at a maximum ejecting amount of the water-based recording liquid (Z) satisfy the following requirements: 0.05≦X/Y≦0.5  (1) Z/Y≦4.

Abstract: A production method of a recording sheet characterized in that a void layer having a dry thickness of 25 to 60 &mgr;m is formed by coating, onto at least one surface of a support, a void layer-forming coating composition comprising fine inorganic particles having an average particle diameter of not more than 100 nm and a hydrophilic binder, as well as not more than 10 coarse particles per ml having a particle diameter greater the particle diameter R (in &mgr;m) represented by formula (1) described below. R=80000/L2  Formula (1) wherein L represents the total dry layer thickness (in &mgr;m) of said void layer.

Abstract: An ink-jet recording sheet has a recording layer comprising a hydrophilic binder, fine inorganic particles having an average primary particle diameter of 30 nm or less, and a cation type water-soluble mordant having an average molecular weight of 50,000 or less. An ink-jet recording method in which excellent water resistance is provided.

Abstract: An ink-jet recording sheet comprises a support, and provided thereon, a void layer containing fine inorganic particles and a hydrophilic binder, the hydrophilic binder having being cross-linked by a hardener.

Abstract: An oil-free two-stage vacuum pump includes first and second pump stages coupled in series. The first and second pump stages have discharge spaces capable of communicating with each other via a bypass passage. The bypass passage is provided with a pressure control valve which is closed when pressure in the bypass passage is lower than a predetermined pressure. This permits a reduction in scroll size. In addition, the pump is free from problems present in pumps with large scroll sizes such as drive shaft vibrations due to warping thereof at high speed rotation, noise and heat generation, and durability reduction due to causes such as non-uniform contact between stationary and revolving scrolls. Moreover, in a compression step in the first pump stage, withdrawn gas is under high pressure; the gas pressure in a sealed vessel is close to the atmospheric pressure in an initial stage of driving.

Abstract: It is sought to provide an oil-free scroll vacuum pump, which can discharge condensed fluid in it to the outside. An oil-free scroll vacuum pump body 1 for withdrawing fluid from a vessel to be evacuated, compressing the fluid and discharging the compressed fluid to the outside, comprises a stationary scroll constituted by a housing half 4 and a wrap 7, another stationary scroll constituted by a housing half 5 and a wrap 6, and a revolving scroll 3. The housing half 4 has a gas ballast gas inlet duct 10 and an inlet port 4a, and the revolving scroll 3 has a communication hole 3e. Gas is introduced through the inlet port 4e into a sealed space defined by wraps of the individual scrolls engaged with one another. The introduced gas is compressed together with compression fluid in the sealed space, and the resultant fluid is discharged through a discharge port 4c to the outside.

Abstract: An image forming method comprises the steps of (a) exposing a silver halide photographic light-sensitive material comprising a first support and provided thereon, a photographic component layer comprising a first binder, light sensitive silver halide and a sparingly water soluble metal compound; (b) superposing the exposed material on an image receiving material comprising a second support and provided thereon, an image receiving layer comprising a second binder and a compound represented by Formula (I), ##STR1## wherein A represents a cycloalkyl group, an aryl group or a heterocyclic ring; and M.sub.1 and M.sub.2 independently represent an alkali metal atom, an ammonium ion or a quaternary ammonium ion; (c) heating the superposed materials in the presence of water; and (d) separating the image receiving material from the exposed material to obtain an image on the image receiving layer of the image receiving material.

Abstract: A method for forming a dye image with high contrast is provided, wherein a heat-processable light-sensitive material comprising a support having thereon a non-light-sensitive layer and a light-sensitive layer containing a light-sensitive silver halide and a dye-providing material capable of releasing or forming a diffusible dye upon heat development is subjected to heat development to release or form the diffusible dye, which is transferred to a dye-receiving material having a dye-receiving layer to form a dye image on the dye-receiving layer, wherein the heat development or the transfer of the dye is carried out in the presence of a compounds represented by formula 1 or 2 and a compound represented by formula 3 or 4,(X.sub.1).sub.t --Q formula 1 ##STR1##R.sub.31 --X.sub.2 formula 3R.sub.41 --CO--Y.sub.1 --W.

Abstract: A process of forming images with a heat-developable color light-sensitive material is disclosed. The process of forming images comprises steps of exposing imagewise a heat-developable color light-sensitive material which comprises a support having thereon a light-sensitive layer containing a binder, light-sensitive silver halide emulsion and dye donating substance capable of forming or releasing a diffusible dye upon heat development and superposing a dye image receiving material which comprises a support having thereon a dye receiving layer, over the light-sensitive material during, or after completion of, heat development to transfer dye images to said dye image receiving layer; wherein the dye image receiving layer contains a hydrophilic binder and polymer particles; a weight ration of the hydrophilic binder to the polymer particles is from 1:05 to 1:20; and the heat development and transfer of dye images to the dye image receiving layer are carried out in the substantial absence of water.

Abstract: Disclosed is a heat developable light-sensitive material that comprises a support having thereon at least one light-sensitive layer containing a silver halide emulsion, a dye-donating substance and a reducing agent, wherein at least one subbing layer comprised of a hydrophobic polymer is provided between the light-sensitive layer nearlest to the support and the support, and at least one said subbing layer contains a photographic useful reagent.A heat developable light-sensitive material according to this invention, can provide control fogging and raise the maximum density, or can improve the maximum density difference without exerting adverse effects on sensitivity and preservability.

Abstract: A thermal transfer recording material improved in adhesion of an image-receiving layer to a support comprises an image-receiving element comprising a support having a subbing layer and an image-receiving layer provided thereon in this sequence, said subbing layer containing a hardener.

Abstract: A heat-developable light-sensitive material is disclosed. The material comprises a paper support and provided thereon, a subbing layer containing at least two hydrophobic polymers different from each other in chemical composition, and a light-sensitive layer containing a hydrophilic binder, a light-sensitive silver halide emulsion, a dye-providing substance and a reducing agent in that order. The subbing layer is provided on the paper support by coating a solution containing the hydrophobic polymers dissolved in a solvent, at least one of said polymers being substantially insoluble in the solvent independently.

Abstract: An image forming method using a heat developable light-sensitive material is disclosed. The light-sensitive material is lowered in curling caused by humidity changing at room temperature or heating at development. The method comprises the following steps ofimagewise exposing to light a heat developable light-sensitive material comprising a paper support having thereon a subbing layer comprising a hydrophobic resin and a light-sensitive layer being provided on the subbing layer, in which the light-sensitive layer comprises a hydrophilic binder, light-sensitive silver halide grains and a dye providing substance,developing the light-sensitive material be heating,contacting the light-sensitive material with a dye-receiving material, andtransferring a diffusible dye formed in the light-sensitive material to the dye-receiving material in the presence of a solvent. The hydrophobic resin of the subbing layer has a glass transition point of from 30.degree. C. to 250.degree. C.

Abstract: The method of processing a heat-processable color photosensitive material is disclosed. The photosensitive material comprises a support, provided thereon, a photosensitive layer containing a photosensitive silver halide, a dye-donor, a reducing agent and a binder, and a non-photosensitive layer containing at least a binder, wherein a coupler capable of coupling with an oxydized product of the reducing agent to form a substantially colorless product is contained in at least one of the photosensitive layer and the non-photosensitive layer, and is represented by Formula (1); ##STR1## wherein R represents one selected from the group consisting of an alkyl group and an aryl group; and X represents a group of the atoms necessary to form a 5- or 6-membered heterocyclic ring containing at least one selected from the group consisting of nitrogen, sulfur and oxygen.

Abstract: A curling prevention device of a thermal developing machine is provided at the outlet of a thermal developing and/or transfer step and thereafter with a correcting guide passage having a bend in the opposite direction to the direction of curling appearing in the step, the device being adapted to permit a thermal developing light-sensitive material to pass with a temperature of 50.degree. C. at least at the inlet portion of the correcting guide passage.