Abstract:
Methods for obtaining natural colorants from plant material (e.g., tobacco material) and for using such natural colorants to dye various substrates are provided. Natural colorants are obtained using particular enzymes and particular conditions (e.g., time, temperature, and pH profiles). Such colorants can be used to dye substrates, for example, using conventional dyeing techniques or using unique in situ methods.
Abstract:
The present invention relates to a process for the production of a dyed fabric using enzyme aggregates. In particular, the process of the invention comprises a step of providing a woven fabric that comprises a base layer and an additional layer which is located on at least one side of the fabric, wherein the yarns of the additional layer comprise fibers that are at least partially dyed, and a step of contacting the woven fabric with enzyme aggregates, preferably with cross-linked enzyme aggregates (CLEAs), to remove at least part of the dye from at least the yarns of said additional layer. The invention also relates to a fabric obtained with the process and to garments including said fabric.
Abstract:
Described are methods relating to modifying the color of sized fabrics using a perhydrolase enzyme system, thereby elimination the need for prior desizing.
Abstract:
This invention relates to a method of production of laccase enzymes from a novel fungal strain Arthrographis sp.MTCC5479 useful for various applications such as degradation of textile dyes in the effluent or bleaching of indigo dye incorporated in the denim fabric and bioremediation in general, such as degradation of some pollutants and xenobiotics. The applications of laccase also exist in bakery, brewery and wine industry, synthesis of chemicals, fabrication of cathode for fuel cell
Abstract:
A method for adjusting the colour tone of dyed cellulosic textile fibre material comprising contacting said textile material with an enzymatic textile treatment composition comprising (i) a perhydrolase enzyme, (ii) an ester substrate for said perhydrolase enzyme, and (iii) a hydrogen peroxide source, for a length of time and under conditions suitable to permit measurable brightening of the textile material.
Abstract:
Novel laccase mediators, including carboxyamido and cyano derivatives of 2, 6-dimethoxyphenol that exhibit improved hydrolytic stability and good bleaching performance. The novel laccase enzymes may be employed in conjunction with the 2,6-dimethoxyphenol derivatives of this invention to provide an improved method for bleaching denim fabrics.
Abstract:
The present invention relates to novel variant EGIII or EGIII-like cellulases which have improved stability. The variant cellulases have performance sensitive residues replaced to a residue having modified stability.
Abstract:
A novel cellulase composition is provided which is produced by an Actinomycete. The cellulase has an approximate calculated molecular weight of 36 kD and has a pH optimum at 40 DEG C of 8 and at 60 DEG C of 7. Also provided is a DNA encoding said cellulase, a method for producing the cellulase and applications thereof.
Abstract:
A system of forming an image using mathematical tools. The images formed using any of the set of mathematical tools, which can be modular level sets, fractals, or cellular automata, or any other modular level set tool. Whenever a tool is used, parameters associated with the values in that tool can be set. This allows producing a number of different functions. The output of the tool is an image, with each pixel of the image having a color and each color representing some change that is to be carried out on the material (115) being processed. The material (115) being processed can be a textile. The processing device can be a laser (100) which produces an output whose value is dependent on the different colors, with each color representing a power output or energy density per unit time specific to that color.
Abstract:
The present invention provides a method for bleaching a dye in solution comprising contacting, in an aqueous solution, the dye with a laccase and an enhancing agent of the formula -NOH-CO-, in particular N-Hydroxyacetanilide.