Abstract:
The present invention is directed to a new cellulase composition for treatment and finishing of cellulose-containing textile materials. The strength properties of cellulose-containing textile materials have remained better in fabrics treated with the compositions of the present invention than the corresponding properties in cellulose-containing textile materials treated with earlier cellulase compositions. The main feature of the new composition is that it does not contain significant amounts of EGII-type endoglucanases.
Abstract:
Cellulases selected from the group consisting of Family 7 cellulases and variants of these cellulases comprising a core and optionally a C-terminal link consisting of 10 amino acids at the most, especially cellulases having tryptophan, tyrosine or phenylalanine in position 55 relative to the sequence alignment of Figure 5 and/or cellulases having a substrate binding cleft of a depth of at least 12 ANGSTROM , exhibit enhanced enzyme activity in the alkaline pH range while exerting a moderate cellulolytic action on the cellulosic substrate and are, for example, useful in detergent compositions, especially for soil removal or colour clarification or preventing backstaining; in fabric softeners; for bio-polishing of textiles; for drainage improvement of paper pulp; for plant degradation. Cellulases from Humicola insolens, Fusarium oxysporum, Trichoderma reesei and Myceliophthora thermophile are referred to.
Abstract:
Process for providing improved localised variation in the colour density of the surface of dyed fabrics, the process comprising treating a dyed fabric with a cellulytic enzyme in an aqueous liquor comprising a polymeric agent.
Abstract:
Disclosed are improved aqueous processes and compositions for obtaining a "stonewashed" look in colored fabric while reducing the amount of redeposition of colorant onto the fabric, as well as the fabrics produced from these methods. In particular, the disclosed methods as directed to contacting fabrics with fungal cellulase composition which is substantially free of CBH type components. Fabrics so treated show reduced redeposition of colorant.
Abstract:
A process for desizing and/or color fading of fabrics and garments utilizing a reducing agent. The process is particularly for pretreating fabrics which are subsequently decolorized with oxidizing agents.
Abstract:
A bleaching agent for snow washing of denim cloth is presented in the pores of a porous refractory carrier having a density of 1 to 2 and a hardness of 6 to 7 on the Mohs scale.
Abstract:
A method for treating dyed textile, compries contacting the dyed textile with a pectolytic enxyme, wherein the said method is not applied during the abrasion stage when the dyed textile is a denim fabric.
Abstract:
The invention relates to a method for finishing a first type of denim, in which the first type of denim is treated at least once in an aqueous solution containing additional substances, during the treatment, the coloured aqueous solution is removed and a non-coloured aqueous solution is added. According to the invention, at least one part of the coloured aqueous solution is subjected to a decolouring process and the coloured aqueous solution is used in the treatment.
Abstract:
Products and methods for ring dyeing a yarn and/or surface dyeing a fabric are provided. The product and method discloses the application of a dye binding composition including a urethane based polymer to a textile yarn, fabric, or garment. The dye binding composition is engineered so that the composition is positioned on or near the surface of the yarn, producing a ring dyed material. The dye binding composition can be colored with selective dyes that bind to the composition but generally do not have affinity for textile substrate. Garments created using this fabric can be abraded to remove surface polymer and color in different locations of the garment, creating an antiqued appearing garment. Dyes of different classifications can be used to produce novel performance and coloration effects in textile materials and garments. This process has been demonstrated on yarn (for a denim-like appearance), knitted and woven fabrics, and garments.
Abstract:
The present invention discloses novel polypeptides and enzyme preparations containing them, which enhance the efficiency of the cellulosic degradation even at elevated temperatures. The polypeptides are produced by recombinant technology, and means for their production are described. The novel polypeptides are useful in processing biomass, and in biofuel, starch, textile, detergent, pulp and paper, food, feed or beverage industries. They may also be used e.g. in cleaning the interior of a dishwashing machine or for biofinishing or biostoning. The novel polypeptides are also useful in animal feed.