| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 008402000 | WOOD DYEING PROCESS | 8 |
| 20090119850 | MINERAL STAINS FOR WOOD AND OTHER SUBSTRATES - According to the invention, a metal salt and an oxygen source are applied to penetrate or impregnate a suitable substrate sequentially in effective amounts so as to react in contact with the substrate and produce a mineral compound fixed within the surface of the substrate. The inventive combination of a mutually compatible metal salt, oxygen source, and substrate brings about an in situ reaction, and modifies the substrate to bring about a lasting desired effect. The mineral compound that is produced according to the invention is linked to the substrate, is stable and long-lasting or permanent, and is immobilized or insolubilized in the substrate. The mineral compound is bound or contained within and on the surface of the substrate, so it may be said to be ingrained in the fibers or matrix of the substrate, or embedded within the substrate. The desired effect is preferably a color. A wide variety of metal salts may be used depending on the desired effect. The oxygen source is preferably a peroxide, and the substrate is preferably a cellulose product such as wood, cotton, or paper; leather; or masonry. The invention contemplates methods of treating substrates, treatment kits, and treated products. With wood products, the invention provides a water-based stain of low toxicity useful for soft woods. | 05-14-2009 |
| 20090271931 | METHODS FOR PRODUCING COLORED GLUE-LAMINATED BAMBOO TIMBER ARTICLES - A method for producing colored gluelam bamboo articles includes splitting bamboo stalks into strips and removing the tabasheer and bamboo rind from the strips. The strips are steamed and then dyed under a high-pressure. The dyed bamboo strips are then dried and planed into a finish plane form. The dyed and finished plane strips are then laminated together with an adhesive to form bamboo timber boards or panels of various sizes. The colored gluelam bamboo timber articles produced exhibit a beautiful, natural dyed appearance in which the natural texture of the bamboo is brought forth and fully preserved after the dyeing, and gluelam bamboo timber products produced from the boards or panels will not warp in the presence of high humidity. The method results in low equipment and manufacturing costs and a high production efficiency. | 11-05-2009 |
| 20120110750 | POLYMERIC HAIR DYES - Disclosed are polymeric dyes of formula (1a), (1b), or (1c); wherein A and B, independently from each other represent a polymer backbone; X | 05-10-2012 |
| 20130139328 | DISULFIDE OR THIOL POLYMERIC HAIR DYES - The present invention relates to the reaction product of (A) a polymeric backbone with (B) A chromophore; and with (C) at least one sulfide containing compound. Very good dyeing results are obtained with this new technology. | 06-06-2013 |
| 20130255006 | AZO DYES - The present invention relates to new azo dyes, a process for their preparation, and their use for dyeing or printing fibrous materials, to produce materials with brownish shades. | 10-03-2013 |
| 20130255007 | AZO DYES - The present invention relates to new azo dyes, a process for their preparation, and their use for dyeing or printing fibrous materials, to produce materials with brownish shades. | 10-03-2013 |
| 20150033480 | WOOD COLORING WITH FUNGI AND THE TREATING PROCESS - Wood color has an important economical impact on wood products. The hardwood lumber industry has shown a particular increase in demand by their customers for wood with an attractive, consistent and specified color. Fungi are a specific group of micro-organisms that can affect wood color. Some fungi produce various colourful pigments during their growth and can produce a preferable uniform color on wood products. The present invention includes methods to use selected fungi for producing various commercially desirable colors on wood and wood products. The methods include manners of fungal selection, culturing conditions, wood treating procedure, incubation timeframe, and drying process. The present invention also describes the wood produced by the method. | 02-05-2015 |
| 20160101539 | METHOD FOR PRODUCING BOG (BLACK) OAK WOOD - The present invention implements a method to produce stained oak, having features identical or very close to a bog (black) oak wood found in wetlands. This method is based on the reaction of iron with the tannin present in the wood, and it comprises the following steps: placing the wood blank into a metal container; filling the container with water (or other suitable solvent), so that all the blanks are submersed; blending iron oxide into the solvent and producing the solution of iron oxide of a suitable concentration; heating the container to the desired temperature between 60 to 100 degrees Celsius; maintaining the temperature of the container for a certain period of time, depending on the dimensions of the blanks; compensating the water that was lost during the process due to evaporation by adding an additional amount of water; after the determined period of time or when the desired shade of wood (black, gray, blue, purple, or brown) is achieved and/or the desired density is reached; stopping the heating process and discharging the water from the tank; washing the blanks; drying the blanks in sawdust or using other desiccation means; and/or drying the blanks in convection or vacuum dryer, or using other similar means, until a needed moisture content is reached. | 04-14-2016 |
