摘要:
The present invention relates to semiconductor nanocrystals having, simultaneously, an emission center surrounded by at least one absorbing shell and a protective exterior shell.
摘要:
Disclosed are embodiments and methods relating to the treatment of textile, such as a textile substrate, with an aqueous dispersion of surface-functionalized particles and a fluorochemical, or a textile substrate treated with an aqueous dispersion of surface-functionalized particles, a fluorochemical, and a flame retardant chemical. Textiles treated in accordance with the disclosed embodiments (e.g., fluorine concentration of from 20 to 900 ppm) demonstrate an average burn rate less than about 4.0 inch/minute, and an average weight loss is less than about 40% of the original weight. During burning of the treated textile, flaming drips extinguish (on average) in less than about 2 seconds, or does not increase the peak heat release rate by more than about 70%, and the mass loss rate by more than about 50%.
摘要:
A method and apparatus for delivering solvent free marking material to a receiver is provided. A printhead includes a discharge device having an inlet and an outlet with a portion of the discharge device defining a delivery path. An actuating mechanism is moveably positioned along the delivery path. A material selection device has an inlet and an outlet with the outlet of the material selection device being connected in fluid communication to the inlet of the discharge device. The inlet of the material selection device is adapted to be connected to a pressurized source of a thermodynamically stable mixture of a fluid and a marking material, wherein the fluid is in a gaseous state at a location beyond the outlet of the discharge device.
摘要:
The invention relates to an imaging element comprising an imaging layer and a support, wherein the support comprises a base material having thereon at least two polyolefin layers, wherein the uppermost layer of the at least two polyolefin layers comprises a mixture of optical brighteners comprising a Compound A having the following formula: a Compound B having the following formula: and a Compound C having the following formula: wherein the layers below the uppermost layer of the at least two polyolefin layers comprise migratory optical brightener; and wherein the imaging layer is on the same side of the base material as the at least two polyolefin layers. The inventive support unexpectedly minimizes exudation of the brightener at the polyolefin surface and provides excellent absorption/emission characteristics, brightening power and heat to meet the critical requirements of the photographic field.
摘要:
This invention relates to an imaging member comprising an image layer and a paper base comprising a mixture of vegetable fibers and wood fibers wherein said vegetable fibers comprise between 5 and 25 percent by weight of said paper base.
摘要:
A method and apparatus for delivering a functional material to a receiver includes a pressurized source of solvent in a thermodynamically stable mixture with a functional material. The solvent is in a liquid state within the pressurized source. A discharge device having an inlet and an outlet is connected to the pressurized source at the inlet such that the thermodynamically stable mixture is ejected from the outlet. A receiver having a back is positioned a predetermined distance from the outlet of the discharge device. The solvent of the thermodynamically mixture evaporates at a location beyond the outlet of the discharge device and a predetermined amount of the functional material contacts the receiver at a predetermined distance from the back of the receiver.
摘要:
An ink jet printing method comprising the steps of: a) providing an ink jet printer that is responsive to digital data signals; b) loading the printer with an ink jet recording element comprising a substrate having thereon an image-receiving layer comprising an inorganic, anionic pigment, an organic, anionic binder and an organic, cationic mordant, and a porous overcoat layer located over the image-receiving layer, the porous overcoat layer comprising an inorganic pigment and an organic, anionic, binder, wherein the refractive index of the inorganic pigment in the overcoat layer is at least 0.05 refractive index units less than the refractive index of the inorganic, anionic pigment in the image-receiving layer; c) loading the printer with an ink jet ink composition; and d) printing on the recording element using the ink jet ink in response to the digital data signals.
摘要:
The invention relates to an imaging member comprising at least one image layer and a base, said base comprising a cellulose paper that has its surfaces impregnated with water dispersible ester-based condensation polymer wherein the surface of said base has a roughness of less than 2.03 &mgr;m Ra and a hydrophobicity as measured by 40/20 Acid Valley test in excess of 500 seconds.
摘要:
Disclosed in this specification is an aqueous dispersion for treating a textile. The dispersion generally includes surface-functionalized inorganic oxides in combination with a fluorochemical. Significantly lower concentrations of fluorochemicals are present in comparison to prior art dispersions.
摘要:
A method and apparatus for delivering solvent free marking material to a receiver is provided. A printhead includes a discharge device having an inlet and an outlet with a portion of the discharge device defining a delivery path. An actuating mechanism is moveably positioned along the delivery path. A material selection device has an inlet and an outlet with the outlet of the material selection device being connected in fluid communication to the inlet of the discharge device. The inlet of the material selection device is adapted to be connected to a pressurized source of a thermodynamically stable mixture of a fluid and a marking material, wherein the fluid is in a gaseous state at a location beyond the outlet of the discharge device.