The invention provides a dyeing process for a piece dyed fabric. The dyeing process comprises a dye liquor padding step, a pre-drying step, and a washing and drying step, and is characterized in that: a color fixing liquid padding normal-temperature rolling and stacking process is increased between the pre-drying step and the washing and drying step, so that the entire process sequentially comprises the dye liquor padding step, the pre-drying step, the color fixing liquid padding normal-temperature rolling and stacking step and the washing and drying step. Since the normal-temperature rolling and stacking step is increased, a dye on the fabric is reacted with an alkaline agent for fixing color in padding liquid under a mild condition; the dying method is low in dye hydrolysis and high in color fixing rate compared with a cold padding batch dyeing method and is high in permeability compared with a two-bath steam dyeing method; the dyeing mode is semi-continuous dyeing, is suitable for dyeing of medium and small-scale multi-variety production and is applicable to both thick and thin fabrics; high utilization ratio of equipment is guaranteed; rolling and stacking are performed at normal temperature, so the dyeing process does not have requirements on processing environments; and the fabric processed by the dyeing process has the advantages of uniform and full cloth cover, high glossiness and smooth and soft handfeel.

Dyeing process for piece dyed fabric

The invention discloses a method for dyeing a cotton-polyester blended weft-knitted fabric heather grey. According to the method, yarns are firstly dyed, and blank cloth woven from the yarns is further dyed so as to achieve a required result. By utilizing a creative operation manner in the scheme, the surface of the processed fabric has the technical effects and sensual experiences that black andgrey strips and grey points are not uniformly distributed on relatively concentrated partial regions, style is relatively unique, and the cloth surface effect is very beautiful.

Method for dyeing cotton-polyester blended weft-knitted fabric heather grey

FIELD: chemistry.SUBSTANCE: invention relates to analytical chemistry and is intended to determine quality indicators of objects. Device comprises a body in which a frequency meter is located to estimate the measurement of oscillation frequency of the piezoresonator before and after the load, connected to two microcircuits for exciting oscillations of two piezoresonators horizontally installed in the moving panel, indicator board placed on the upper panel of the body for outputting a change in oscillation frequency of the resonator before and after the load through the hole for applying a liquid sample to each piezoresonator, handle for moving the piezoresonators until its clicking position in two positions: "load / weigh" and "drying / cooling", Peltier element for drying the sample by heating and then cooling one and the other piezoresonator alternately.EFFECT: increased rapidity of determination of the dry residue, non-volatile compounds in drinking, waste, natural waters, fuels, foodstuffs is achieved with the help of one device and the analysis both in the laboratory and in the on-site mode without special conditions is provided.1 cl, 1 tbl, 1 dwg

Device for determination of dry residue, non-volatile compounds in drinking, waste, natural waters, fuels, foodstuffs

Beschrieben wird ein Verfahren zur Messung organischer und/oder anorganischer Begleitfrachten im Inneren eines flussigkeitsdurchlassigen Gutes, insbesondere eines Textilgutes (1), zwischen dessen erster und zweiter Oberflache, bekannt, das die folgenden Schritte aufweist: DOLLAR A - Aufbringen eines Losungsmittels (H 2 O) auf das Gut von der ersten Oberflache her, DOLLAR A - Absammeln des Losungsmittels mit der darin enthaltenen Begleitfracht von der zweiten Oberflache des Gutes, DOLLAR A - qualitative und/oder quantitative Bestimmung der Begleitfracht in einer Analyseneinrichtung (26), DOLLAR A wahrend das Aufbringen und Absammeln des Losungsmittels am in einer Forderrichtung durchlaufenden Gut erfolgt, wobei das Aufbringen aus einer Duse (12) mit Abstand zum durchlaufenden Gut (1) in einem ersten Raumbereich und das Absammeln mittels einer Absaugplatte (21), uber die das Gut frei lauft, in einem zweiten, vom ersten insbesondere beabstandeten, Raumbereich in Forderrichtung stromabwarts des ersten Raumbereichs erfolgt

Verfahren und Vorrichtung zur Messung organischer und anorganischer Begleitfrachten in einem flächigen Gut

The invention discloses a supercritical CO2 wool fiber dyeing technology with assistance of a magnetic field. The technology comprises the following steps of: step 1, pretreating, namely selecting, washing and classifying animal raw wool; step 2, putting the pretreatment animal raw wool into a magnetic field to be treated, wherein the treatment temperature of the magnetic field is 25-38 DEG C, the magnetic field intensity is 4500-6000Gs and the magnetizing time is 60-90 minutes; and step 3, carrying out supercritical CO2 dyeing on the animal wool treated in step 2. A convention dyeing technology is not adopted, and the supercritical CO2 wool fiber dyeing technology with assistance of the magnetic field provided by the invention is simple in technological step and short in dyeing time and generates small damage to wool fibers.

Moryganov Andrej P

Papers

Method of removing solvent from textile web

Device for measuring concentration of vapours of organic compounds

Method of coloring textile material

Method of dyeing or printing textile materials made of polyester, polyamide, acetate, cotton fibres and their blends

Method of dyeing hydrophylic textile material