57 results about "Maximum bubble pressure method" patented technology

An inkjet recording method including applying stimuli to inkjet recording ink to make the ink jet onto recording medium, wherein the recording medium includes support, and surface layer provided on at least one surface of the support, where transfer amount of pure water with contact time of 100 ms determined by measuring the surface of the recording medium to which the surface layer is provided by dynamic scanning absorptometer is 1 to 10 mL/m², the recording medium is surface-treated through corona discharge or plasma treatment, the ink contains water-dispersible colorant, organic solvent, surfactant, and water, the organic solvent contains at least one polyhydric alcohol having equilibrium moisture content of 30% by mass or greater at 23° C. and 80% RH, and dynamic surface tension of the ink, as measured by maximum bubble pressure method with surface lifetime of 15 ms, is 35 mN/m or lower at 25° C.

Novel conditions in the physical properties of an ink have been found out to provide an aqueous ink, which can give a high image density and achieve excellent fixing ability. The aqueous ink comprises at least water, a water-soluble organic solvent, a surfactant and a coloring material, wherein the dynamic surface tension at a lifetime of 50 milliseconds as determined by a maximum bubble pressure method is 49 mN/m or more, and the dynamic surface tension at a lifetime of 5,000 milliseconds as determined by the maximum bubble pressure method is 38 mN/m or less.

An inkjet recording method, containing: applying a stimulus to an inkjet recording ink to jet the ink, to form an image on a recording medium, wherein the ink contains water, a water-soluble organic solvent, a colorant, and a surfactant, and has a predetermined surface life time as measured by a maximum bubble pressure method and a predetermined static surface tension, wherein the recording medium contains a support, and a recording layer provided at least one surface of the support, where the recording layer contains a cationic resin in a predetermined amount, and is a medium for a concealing postcard where the recording medium is folded to bond a surface of the recording layer to face each other with an adhesive after information is recorded on the surface of the recording layer, in which the surface of the recording layer has a predetermined 10-sec Cobb size degree.

A cleaning solution for preventing the collapse of photoresist patterns and a method of cleaning a semiconductor device using the cleaning solution; the cleaning solution includes a solvent and a surfactant and has a dynamic surface tension of about 50 dyne/cm or less at about 6 bubbles/seconds when measured by a maximum bubble pressure method. The collapse of the photoresist pattern can be prevented using the cleaning solution when forming minute photoresist patterns having about 100 nm or less pattern width. The cleaning solution containing a surfactant in a high concentration also can be prepared to reduce distribution expenses.

A water based ink set for ink-jet recording has a yellow ink, a magenta ink and a cyan ink each having at least a coloring agent, water and a water soluble organic solvent. The coloring agent of each of the black ink and the red ink is a pigment and the coloring agent of each of the yellow ink, the magenta ink and the cyan ink is a water soluble dye. The black ink and the red ink each have a dynamic surface tension at a lifetime of 100 ms of 40 mN/m or more and 45 mN/m or less as measured by a maximum bubble pressure method at 25° C.

A printing device including an inkjet head including a nozzle plate, where the printing device is configured to eject an ink from the inkjet head and the ink includes a colorant, at least one organic solvent, and water, wherein a dynamic surface tension A of the ink at 25° C. with a surface lifetime of 15 msec as measured by a maximum bubble pressure method is 34.0 mN/m or less, and the dynamic surface tension A and a static surface tension B of the ink at 25° C. satisfy a formula below,

10.0%≦[(A−B)/(A+B)]×100≦19.0%, and

wherein a receding contact angle of the ink relative to the nozzle plate is 35° or greater.

The ink-jet recording apparatus has an-ink passage into which a water-based ink or a preservation solution is filled. The ink passage employs a rubber member formed from an ethylene propylene diene rubber in which a sulfenamide-based vulcanization accelerator or a thiazole-based vulcanization accelerator is employed. The water-based ink has a dynamic surface tension at a lifetime of 100 ms of about 35 mN/m to about 45 mN/m as measured by means of a maximum bubble pressure method at a measurement temperature of 25° C. Furthermore, the preservation solution has a dynamic surface tension at a lifetime of 100 ms of about 30 mN/m to about 35 mN/m as measured by means of the maximum bubble pressure method at a measurement temperature of 25° C.

An aqueous ink to be used together with a pigment ink containing a pigment and a polymer, wherein the aqueous ink contains a reactive component for destabilizing the dispersion state of the pigment, the dynamic surface tension of the aqueous ink at a lifetime of 30 milliseconds is 41 mN/m or more, and the dynamic surface tension of the aqueous ink at a lifetime of 500 milliseconds is from 28 mN/m or more to 38 mN/m or less as determined by a maximum bubble pressure method.

An inkjet recording method includes applying a pigment-containing first black ink to a recording medium to record an edge region of an image, and applying a pigment-containing second black ink to the recording medium to record an inner region of the image. A dynamic surface tension γ₁ of the first black ink determined by a maximum bubble pressure method for a lifetime of 100 ms and a dynamic surface tension γ₂ of the second black ink determined by a maximum bubble pressure method for a lifetime of 100 ms satisfy relationships of condition (1) of γ₁>γ₂, condition (2) of γ₁−γ₂≦20 mN/m, condition (3) of 40 mN/m≦γ₁, and condition (4) of 34 mN/m≦γ₂.

An ink composition is manufactured to contain a surfactant having difference d1 (σ₁₀−γ) which is difference between dynamic surface tension (σ₁₀) of the solution obtained by making 0.1 wt % solution dissolved in purified water to be measured by using a maximum bubble pressure method at the bubble frequency of 10 Hz at a temperature from 24° C. to 26° C. and static surface tension (γ) to be measured at a temperature from 24° C. to 26° C. and which satisfies 0 mN/m≦d1≦15 mN/m. An image is recorded by applying a voltage to partitions made of a piezoelectric material thereby applying a pressure to the ink composition supplied from an ink tank to an ink chamber of an ink head to discharge a liquid droplet of the ink composition, and depositing the liquid droplet onto a recording material.

The ink-jet recording apparatus has an ink passage into which a water based ink or a preservation solution is filled. The ink passage employs a rubber member formed from a rubber which is formed of a butyl rubber polymer, a rubber polymer vulcanizable with an organic peroxide, and an organic peroxide. The water-based ink has a dynamic surface tension at a lifetime of 100 ms of about 35 mN/m to about 45 mN/m as measured by means of a maximum bubble pressure method at a measurement temperature of 25° C. The preservation solution has a dynamic surface tension at a lifetime of 100 ms of about 30 mN/m to about 35 mN/m as measured by means of the maximum bubble pressure method at a measurement temperature of 25° C.

An ink discharge device is provided including an ink, an ink discharge head, and a circulator. The ink discharge head includes a nozzle, an individual liquid chamber communicated with the nozzle, a flow-in channel, and a flow-out channel. The circulator circulates the ink by letting the ink flow into the individual liquid chamber via the flow-in channel and flow out from the individual liquid chamber via the flow-out channel. A flow rate of the circulated ink is 0.10 to 1.50 times a maximum dischargeable rate of the ink discharge head. A dynamic surface tension A of the ink at 25° C. is 34.0 mN/m or less when measured by a maximum bubble pressure method at a surface lifetime of 15 msec, and the dynamic surface tension A and a static surface tension B of the ink at 25° C. satisfy the following relation:

10.0(%)≤[(A−B)/(A+B)]×100≤19.0(%).

An ink jet recording ink tank includes: an ink retention member, which to hold ink exerts a negative pressure through capillary force; and ink, which is retained in the ink retention member, for which a dynamic surface tension in a lifetime of 50 msec, obtained by a maximum bubble pressure method, is higher than an interfacial tension of the ink retention member, a dynamic surface tension in a lifetime of 5000 msec is lower than the interfacial tension of the ink retention member, and a difference between the dynamic surface tension in the lifetime of 50 msec and the dynamic surface tension in the lifetime of 5000 msec is equal to or greater than 8 mN/m.

An aqueous ink to be used together with a pigment ink containing a pigment and a polymer, wherein the aqueous ink contains a reactive component for destabilizing the dispersion state of the pigment, the dynamic surface tension of the aqueous ink at a lifetime of 30 milliseconds is 41 mN/m or more, and the dynamic surface tension of the aqueous ink at a lifetime of 500 milliseconds is from 28 mN/m or more to 38 mN/m or less as determined by a maximum bubble pressure method.

Provided is an ink containing a pigment, a water-soluble organic solvent, and a surfactant represented by the following general formula (1), and having a viscosity at 25° C. of 5 mPa·s or more. The ink has a static surface tension of 27.1 mN/m or more and 35.0 mN/m or less, which is measured at 25° C. by a Wilhelmy method. The ink also has a dynamic surface tension at a bubble life time of 150 msec of 30.5 mN/m or more and 37.0 mN/m or less, which is measured at 25° C. by a maximum bubble pressure method.

An aqueous ink used together with a black ink containing a self-dispersion pigment, wherein the aqueous ink contains a reactive component for destabilizing the dispersion state of the self-dispersion pigment, the dynamic surface tension of the aqueous ink at a lifetime of 30 milliseconds is 41 mN/m or more, and the dynamic surface tension of the aqueous ink at a lifetime of 500 milliseconds is from 28 mN/m or more to 38 mN/m or less as determined by a maximum bubble pressure method.

A method of forming a pattern and a method of producing an electronic element with which a fine and precise pattern is stably formed are provided. Each of the method of forming a pattern and the method of producing an electronic element includes a step of forming an electrically conductive film D by applying a liquid composition onto a first plate 10; a step of forming an electrically conductive pattern D′ on the first plate 10 by pressing a second plate 20 onto a surface side of the first plate 10, on which the electrically conductive film D is formed, to transfer an unwanted pattern of the electrically conductive film D to top faces of projections 20a of the second plate 20, thereby removing the unwanted pattern; and a step of transferring the electrically conductive pattern D′ by pressing the surface side of the first plate 10, on which the electrically conductive pattern D′ is formed, onto a surface of a transfer-receiving substrate, wherein when a surface tension of the surface of the first plate 10, onto which the liquid composition is applied, is represented by α, a dynamic surface tension of the liquid composition at 100 msec measured by a maximum bubble pressure method is represented by β, and a surface tension of the top faces of the projections 20a of the second plate 20 is represented by γ, the composition of the liquid composition or a material of the surface of the first plate 10 or the second plate 20 is set so as to satisfy γ>α≧β.

The invention provides a gelled lead acid battery diaphragm pore size distribution measurement method, which is convenient to test and accurate in testing result. A bubble pressure method based on a capillary action principle is adopted to measure a wet curve Fw and a dry curve Fv; according to the ratio of an opened diaphragm pore area R(r)=(Fw/Fv)*100%, differentiation is carried out between the R(r) and the pore size, and a diaphragm pore size distribution function f(r)=d(R(r))/dr is obtained. The gelled lead acid battery diaphragm pore size distribution measurement method has the beneficial effects that when the wet curve is measured, a diaphragm sample is placed in an ethanol solution for being immersed, the actually-acted pore conditions after the diaphragm is assembled in a battery can be truly reflected, the added pressure value is 0.001 to 0.01 MPa each time, and the obtained result is accurate. The method of the invention is convenient to test, the obtained pore size distribution result is accurate, and the result is consistent with results through electron microscope detection and mercury intrusion detection.

A inkjet recording sheet comprising a support and provided thereon, a porous ink absorptive layer containing inorganic micro-particles and a hydrophilic binder, wherein the ink absorptive layer contains 0.15-2.5 g/m² of a surfactant having a dynamic surface tension of a 0.3% aqueous solution, which is measured by a maximum bubble pressure method, of not more than 60 mN/m at 20 m·sec under a condition of a liquid temperature of 35° C.

An ink composition is prepared in such a manner that a difference between a dynamic surface tension (mN/m) measured by a maximum bubble pressure method at a temperature of 24 to 26 DEG C. and a static surface tension (mN/m) is within a range from 0 to 7 (mN/m). The ink composition is stored in an ink tank of an ink head, and is supplied from the ink tank to an ink chamber having a discharge port, and a voltage is applied to partitions formed by a piezoelectric material to apply a pressure by the partitions to the ink composition stored in the ink chamber, whereby a liquid droplet of the ink composition is discharged from the discharge port and the liquid droplet is deposited on a recording material to record an image.