摘要:
A method for kier-dyeing packaged yarn in a discontinuous manner employing a chlorinated solvent as the sole fluid to evacuate the air from the kier and to heat the yarn to achieve dye fixation temperature as the principal vehicle for the dye formulation, and as the means for recovering residual solvent from the dyed yarn packages and kier. The method is practiced by subjecting a kier, which has been loaded with packages of yarn to be dyed, to an initial vacuum followed by introduction of vapors of a chlorinated solvent into the bottom of the kier until the kier is filled with such vapors and substantially all air has been evacuated, discontinuing the exhaustion under vacuum but continuing the introduction of vapors to the kier until the contents achieve the temperature of the vapors, introducing a solvent dyebath into the kier and circulating the dyebath through the kier until the dyebath is spent, removing the spent dyebath from the kier under the pressure of solvent vapors, and circulating the vapors to a heater to superheat the vapors, returning the vapors to the kier, condensing vapors in excess of those necessary to fill the kier and superheater, continuing the circulation of vapors until the solvent is substantially completely removed from the yarn in the kier. Residual solvent is removed by evacuating and purging the kier with an inert gas. Thereafter, the kier is cooled to enable removal of the yarn packages. Finally, solvent is recovered from the spent dyebath and returned to storage.
摘要:
Dyeing apparatus incorporates a stock tank for cleaning fluid, a mixing vessel, a kier for material to be dyed and a pump connected to the stock tank, the mixing vessel and the kier by way of valve means. A filter is also connected to the kier and to a separator capable of separating cleaning fluid from the dye carrier by way of valve means. The cleaning fluid separator may be connected to the cleaning fluid stock tank and to the inlet of the filter by valve means. A changeover valve may be provided in the connection of the kier to the pump for reversing the direction of flow through the kier.
摘要:
An embodiment herein provides a process for dyeing of textile materials 108 with supercritical fluid. One or more dye materials 102 along with additives (if required) are mixed with at least one suitable solvent 104 to obtain one or more dye solutions 106. A textile material 108 is pre-treated with the one or more dye solutions 106 to obtain a dye coated textile material 110. The dye-coated textile material 110 is exposed to the supercritical fluid 112 in a supercritical fluid dyeing vessel at controlled pressure and temperature. The supercritical fluid 112 solubilizes and diffuses the one or more dye materials 102 inside the surface, pores and capillaries of the textile material 108. The supercritical fluid vessel is then depressurized below supercritical condition to entrap the one or more dye materials 102 in the textile material 108 to obtain a supercritical fluid dyed textile material 114.
摘要:
The present invention provides a production process characterized in that a false twisting process is added between a spinning process and a winding process so that yarn slivers undergo excessive pre-torsion in an axial direction and twists which are same in quantity but different in twisting direction are generated on the yarn slivers. Absorption of glucose-containing sulfur dyestuff is performed in a dyeing process. An ammonia removal process is performed in a high-temperature and high-pressure tank so that residual ammonia in a fabric is evaporated. The evaporated ammonia is collected and then fed back to a mercerizing process for continuous use. The present invention also provides a production line including a spinning unit having a false twisting device, a dyeing unit configured to realize the dyeing process, and a liquid ammonia finishing unit consisting of a fabric mercerizing device, an ammonia removal device, an ammonia recycling device and a controller.
摘要:
A method for processing textile fibers is provided. The method comprises: adding a plurality of raw materials for processing textile fibers into a plurality of kettles; preparing supercritical carbon dioxide; obtaining one or more natural plant dyes and one or more natural plant extracts from the plurality of raw materials, and dissolving the one or more natural plant dyes and the one or more natural plant extracts in the supercritical carbon dioxide; dyeing and functionally modifying the textile fibers simultaneously by using the supercritical carbon dioxide carrying a mixture of the one or more natural plant dyes and the one or more natural plant extracts; performing a post-process to recycle the supercritical carbon dioxide; and performing a cleaning process to clean the one or more natural plant dyes and one or more natural plant extracts.
摘要:
A composition for dyeing keratin fibres, and in particular human keratin fibres such as the hair, characterized in that it comprises, in a medium which is suitable for dyeing:at least one coupler selected from 2-iminoindoline derivatives of formula (I) and acid addition salts thereof: ##STR1## in which: R.sub.1 represents hydrogen, alkyl, hydroxyalkyl, alkoxycarbonyl or acyl;R.sub.2 represents hydrogen, alkyl, phenyl or arylsulphonyl;R.sub.3 represents hydrogen or alkyl which may be substituted with one or more hydroxyl, alkoxy, amino, alkylamino, dialkylamino, cyano or aryl groups;R.sub.4 and R.sub.5, which may be identical or different, denote hydrogen, hydroxyl, alkyl, alkoxy, amino, alkylamino, dialkylamino, aralkyl, halogen or a nitro group; andat least one oxidation base.
摘要翻译:用于染色角蛋白纤维,特别是人角蛋白纤维如毛发的组合物,其特征在于,它在适于染色的介质中包含:至少一种选自式(I)的2-亚氨基二氢吲哚衍生物和酸 其加成盐:其中:R1表示氢,烷基,羟基烷基,烷氧基羰基或酰基; R 2表示氢,烷基,苯基或芳基磺酰基; R 3表示氢或可被一个或多个羟基,烷氧基,氨基,烷基氨基,二烷基氨基,氰基或芳基取代的烷基; R 4和R 5可以相同或不同,表示氢,羟基,烷基,烷氧基,氨基,烷基氨基,二烷基氨基,芳烷基,卤素或硝基; 和至少一个氧化基。
摘要:
A process is disclosed for the rapid, continuous and waterless dyeing of textile and plastic materials in which the dyestuff is dissolved, suspended or dispersed in a high boiling solvent, such as glycol or glycol ether, for carrying out the dyeing step per se, after which the dye textile or plastic material (after cooling if desired) is subjected to a washing with a low boiling organic liquid such as methanol or ethanol (preferably the former) or a chlorinated hydrocarbon solvent, and subsequently dried. The entire series of operations is carried out under nonaqueous or substantially nonaqueous conditions with the complete or substantially complete recovery and recycling of the used dyestuff, the used high boiling solvent, and the used low boiling organic wash liquid.
摘要:
An apparatus for the treatment of a textile material comprising at least one treatment zone intermediate upstream and downstream treatment zones wherein successive zones are separated from each other by respective sealing zones. The textile material is propelled through the treatment zones by means of a forced circulation of a sealing liquid that flows through the sealing zones.
摘要:
This invention relates to a device for the wet treatment and subsequent drying of a textile fabric web, in which the web passed through a treatment chamber and a liquid treatment medium which comprises at least one organic solvent is supplied from a container to the web. The web then passes through a drying chamber wherein a stream of hot air is passed through the fabric web to evaporate the treatment medium which is then passed to a recovery device adjacent the drying chamber for the recovery of organic solvent removed by the air stream. Residual treatment liquid in the container is passed from the container to an evaporator located in the drying chamber from which it is passed by the air stream to the recovery unit.
摘要:
The invention relates to a plant for the processing of textiles, fibers or the like in a liquor, in which an organic solvent immiscible with water, having a specific gravity greater than 1, and forming azeotropic mixtures with water is used.