43 results about "Dark colour" patented technology

The invention discloses a dark-system photopolymerizable composition and belongs to the technical field of photopolymerizable materials. The composition is prepared from the following components in parts by mass: 20-80 parts of a photopolymerizable prepolymer, 5-60 parts of a photopolymerizable monomer, 0.2-8 parts of a photoinitiator, 0.1-5 parts of a black pigment and 0.05-5 parts of an up-conversion material. The composition can be subjected to a photopolymerization reaction under direct irradiation of near-infrared light. The absorption on the near-infrared light can be avoided by the darkpigment, and the up-conversion material can absorb the near-infrared light with relatively good penetrability and emit ultraviolet light or visible light to induce the decomposition of free radicalsin the composition or an ionic type photoinitiator, thereby realizing the photopolymerization reaction of photopolymerizable substances; therefore, the photopolymerization of a dark composition is realized, the photopolymerization extent of the dark composition is improved, the mechanical properties of the polymer is improved and the application field is widened.

A two-layer mono-axially oriented film includes a first layer of an opaque beta-nucleated microvoided propylene-based polymer; and a second layer containing a dark pigment that is adapted for use in a thermal printer in which the thermal print-head contacts the exposed surface of the first layer. The dark pigment of the second layer pigment has a color contrasting with the color of the first layer and can contain a carbon black. The first layer includes microvoids and may be made transparent upon the application of heat by collapsing the voids of the first layer or upon the application of ultra-sonic energy.

A hydrofining method of aromatic solvent naphtha is characterized by that its makes the aromatic solvent naphtha which possesses heavy abnormal smell and dark colour and is richly produced in the course of producing petroleum resin by using pyrolytic oil undergo the two-stage hydrofining treatment to obtain the solvent naphtha meeting the product quality requirements for paint industry. This invented method is simple in process, its operation is easy to control, it does not produce polymerization reaction, and its whole hydrogenation process can be normally implemented.

A covering for an architectural feature having generally horizontal vane elements coupled to and located between generally front and rear generally vertical support members, which in preferred embodiments are adjustable to control the amount of light transmitted through the covering. In one embodiment the covering has three dimensional multi-layered, cellular vanes, and in another embodiment, the one or more support members are formed of a dark color, and the rear support member(s) may be formed of material that is darker than the front support member(s), or vise versa. In another embodiment, the support members, e.g., sheers, have an openness factor, preferably as low as about sixty-five percent (65%) to as large as about ninety percent (90%). Other embodiments include structure, assemblies and methods for controlling the closure of the covering as well as embodiments of bottom rail assemblies. Also provided is a method of manufacturing the covering.

A color masterbatch composition, comprising a thermoplastic polyester, a yellow colorant component, a red colorant component, and a blue colorant component. The yellow colorant component is selected from Pigment Yellow 147, Pigment Yellow 181, Pigment Yellow 183, Dye Brown 53, or a combination thereof. The red colorant component is selected from Pigment Red 122, Pigment Red 144, Pigment Red 202, Pigment Red 214, or combination thereof. The blue colorant component is selected from Pigment Blue 60, Dye Blue 67, or a combination thereof. The present invention further provides a colloidal particle that is obtained by developing the above masterbatch composition in a base material mainly composed of thermoplastic polyester. An article produced from the present disclosure has an effect of slowing down and reducing heat absorption and can maintain its original color during processing.

The invention relates to a gradient divisional colour change control method for liquid crystal sunglasses and a control device thereof. Liquid crystal lens are divided into a plurality of parallel liquid crystal bars, the transmittance of every liquid crystal bar is controlled; an average control voltage is output by controllers according to the external average illuminance to control the averagelight transmission rate of the liquid crystal lens; the incident angle of an intense light source to the liquid crystal lens is measured by an angular transducer, a centre glare-shielding bar is selected according to the incident angle; the control voltage of the centre glare-shielding bar is increased to make the bar a black area, the bars next to the centre glare-shielding bar are used as transition glare-shielding bars, and the control voltage is applied to the transition glare-shielding bars in gradually decreasing current so that the light transmission rate of the transition glare-shielding bars is gradually increased from the black area to a light area to form a gradient light-to-dark transition region between the black area and the light area. The total light transmission rate and the distribution of the light and dark colour change areas of the liquid crystal lens can automatically vary with the environmental illuminance and the angle of the strong incident light, the light-to-dark transition region is arranged on the liquid crystal lens and the lens has the advantages of simple structure, small volume and low cost.

The invention belongs to the technical field of composite inorganic pigments, and in particular relates to a green pigment with both low lightness and high near-infrared reflectivity and a preparation method thereof. In the present invention, chromium trioxide is used as the base material, doped with manganese dioxide and prepared by a solid-phase method; manganese dioxide and chromium oxide undergo a solid solution reaction at high temperature to form a spinel-structured manganese chromate secondary phase, and finally obtain The green pigment takes into account both low lightness and high near-infrared reflectivity. The pigment is green in the visible light band, and the lightness value is 24-33; In reflective coatings, and in the field of military camouflage materials. The research and application of dark energy-saving coatings have broad prospects. The solid-phase synthesis method has mature and simple preparation technology, less investment, easy operation, and is suitable for industrial production.

The invention discloses a dark hair bleaching composition, which comprises an alkaline component, a thickening agent, and one or more pigment components capable of keeping chemical properties stable in the presence of other components in the hair bleaching composition and hydrogen peroxide, i.e. one or more pigment components which are not reacted with the other components in the hair bleaching composition and the hydrogen peroxide, wherein the hair bleaching composition is in black or a dark color similar to black when being used due to the pigment components, and the content of the pigment components in the dark hair bleaching composition is 0.001 to 50 weight percent. The dark hair bleaching composition can still be kept in a dark form when being used, and is unlikely to interfere with the visual perception of an operator, so that the operator can accurately master the hair bleaching degree.

The invention provides a high-mesh and high-precision pattern printing process, which includes a printing color paste, and its components include: (mass percentage) 0.5% to 7% of color material; 2% of viscosity regulator; 2% of hand feel regulator ; Fixing agent 1? 5% ~ 13%; Appropriate amount of tackifier; Softener? 0.5% to 1%; the remaining amount of soft water; the final viscosity range of the printing color paste is between 8000mPa·s and 18000mPa·s; the tackifier is used to adjust the viscosity of the printing color paste Depending on the viscosity of the printing paste, the final viscosity of the printing paste is within the range. This application effectively solves the fastness problems of dye printing and the poor hand feeling of pigment printing, plugging nets and environmental protection problems, especially the chlorine bleaching fastness of reactive dyes and the washing fastness of dark-colored products. And the advantages of pigment printing, printing performance is excellent, with bright color, soft feel, clear outline, delicate pattern, environmental protection and energy saving and so on.