9 results about "Dark colour" patented technology

A holographic security code comprising: a pattern of elementary cells having a predetermined shape and a predetermined relative position, said pattern comprising a two-dimensional sequence of said elementary cells; said pattern comprising a predetermined number of so-called "empty" elementary cells, i.e. such as to appear in a predetermined dark color, in particular black, and said pattern comprising a predetermined number of elementary cells that generate a diffractive effect, so-called iridescent cells, and which each comprise at least one diffractive grating having a predetermined orientation, preferably a combination of at least two diffractive gratings that differ between their orientation; said diffractive gratings being made in such a way that the light radiation emitted is visible only with an observation according to different viewing angles comprised in a predetermined range, said pattern generating, when observed according to the aforementioned viewing angles, an image consisting of the combination of said predetermined number of so-called empty cells, having a predetermined dark colour, preferably black, and of so-called iridescent cells and in particular of different colours contrasting with said dark colour of the so-called empty cells; while with viewing angles and / or illumination outside said range of viewing angles, in particular perpendicular to the surface along which said two-dimensional sequence of elementary cells extends, said empty elementary cells and said iridescent elementary cells do not have a different appearance from each other; said elementary cells having sides lengths and / or diagonals or larger diameters in the range from 50 to 300 microns. The invention also concerns a holographic security product characterized by the fact that it comprises a substrate on which said aforementioned holographic code is applied. In addition, the invention has as its object an anti-counterfeiting verification system, said system comprising: a plurality of anti-counterfeiting labels that comprise a product of the aforementioned type; at least one code reader applied to said labels, said codes being made up of at least one said holographic code; at least one processing unit comprising a memory wherein the aforementioned codes are stored and at least one program for comparing the codes transmitted by the reader and the codes contained in said database, at least one visual and / or acoustic reception and reproduction unit associated with said reader; said processing unit generating a confirmation or denial signal of the authenticity of the code depending on the outcome of said comparison, said signal being transmitted to said visual and / or acoustic reproduction unit for the emission of visual and / or acoustic information about the confirmation or denial of authenticity of said code.

The invention relates to a control console for an aerial lift, comprising a push button (100) defined by a pressing area (102) provided on a front wall (114) of the console. The push button comprises a switching device (130) which can be actuated by a user when the user presses on the pressing area (102), wherein a plurality of light-emitting diodes (150) are arranged around the switching device (130), the diodes being jointly switchable between an off state and an on state. A pictogram (104), arranged on the pressing area, is printed in a semi-transparent manner in a first dark colour on the front wall, while the rest of the pressing area is printed in an opaque manner in a second dark colour, so that, when the diodes are in the off state, the pictogram (104) appears blended with the rest of the pressing area, and, when the diodes are in the on state, the pictogram appears illuminated to the user.

The perfume bottle features a transparent rectangular body with softly rounded corners and a gently curved base. The side walls taper towards the top. Conversely, the inside of the container is slightly tapered, narrowing towards the bottom. The top of the bottle is fitted with a cylindrical, dark-colored cap shaped by several horizontal ridges around its circumference. 1.1) Perspective view; 1.2) Front view; 1.3) Rear view; 1.4) Left side view; 1.5) Right side view; 1.6) Top view; 1.7) Bottom view

The invention relates to an insect-catching belt for the control of dermatobiasis in bovine animals, comprising a main belt (1) made of textile material, with an adequate width and sufficient length to encircle the thorax of an adult bovine animal. Two pieces of velcro (2), located at both ends of the main belt, to make it self-adjustable to fit any adult bovine animal. A wider area (3) made of the same material as the belt, located towards the front of the main belt (1). A wire strip (4) placed internally at the front end of the wider area (3) to fit the back of the bovine animal. Four corner elements (5), located at equal distances, only on the left side of the wider area of the belt. These corner elements (5) hold the dark-coloured card (6), allowing for easy exchange thereof. The dark-coloured card (6) is interchangeable and of a suitable size for the wider area, and is secured perfectly with the four corner elements (5). Each dark-coloured card (6) will contain an adhesive insecticide (7) on its exposed surface.

The present invention provides a dark color disperse dye comprising component A of formula (I), component B of formula (II) and component C of formula (III). The dark color disperse dye product prepared by the present invention has excellent fastness to perspiration and blistering when dyeing hydrophobic fiber materials.

The invention discloses a dark color dyeing process for a trapa acornis nakai shell cellulose fiber fabric. The dark color dyeing process comprises the following steps: extracting a trapa acornis nakai shell pigment, modifying the cellulose fiber fabric, dyeing and fixing, and sizing. Dyeing the cellulose fiber fabric by using a mordanting method; the used mordant at least comprises one of alum, copper acetate and ferrous sulfate; the concentration of a trapa acornis nakai shell pigment solution is 5-10 wt% and the bath ratio is 1: (30-50) during dyeing by the mordanting method, heating to 90-95 DEG C from room temperature at the rate of 1-2 DEG C / min, keeping for 45-60 minutes, cooling to room temperature at the rate of 1-2 DEG C / min, and washing with clear water; the dyeing K / S value of the cellulose fiber fabric can be effectively improved by adopting the mordanting method for the modified cellulose fibers, the dye uptake is improved, and the cellulose fiber fabric has good color fastness after being subjected to color fixation treatment.

The application provides a preparation method of a dark color and uniform dyeing type functional suede fabric, and specifically comprises the following steps: step one, raw material; step two, spinning; step three, weaving; step four, pretreatment; step five, suede treatment; step six, dyeing; and step seven, functional finishing. When the application is used, the movable bucket reciprocatingly shakes up and down under the driving of the shaking motor, the movable bucket pushes the liquid at the bottom to be extruded upward when shaking, the extruded liquid is sprayed to the cloth through the opening, the liquid actively contacts the cloth, the absorption of the cloth and the dye is accelerated, in addition, the movable seat extrudes the cloth under the pushing force, the extruded cloth accelerates to absorb the dyeing liquid to be dyed, the absorption speed of the cloth is accelerated, and thus uniform dyeing is achieved.

The present invention relates to an acoustically active shaped body comprising a melamine resin foam and an azo dye, where the shaped body has a dark color with a lightness L* of below 40; and to a use of the shaped body for acoustic insulation; and to a process for producing a shaped body comprising heating and foaming an aqueous mixture M using microwave radiation, said mixture M comprising at least one melamine-formaldehyde precondensate, at least one azo dye, at least one curative, at least one surfactant and at least one blowing agent.