238results about How to "Simple dyeing process" patented technology

The invention relates to a high temperature high pressure bulking dyeing method which comprises dyeing and after treatment. By adoption of the dyeing method of the invention, fibers or textile fabrics like aramid fibers, polysulfonamide fibers, polyphenylene sulfides, polybenzimidazole, poly-p-phenylene benzobisoxazole fibers, phenol formaldehyde resins, fibrilia and so on which have high crystallinity and high orientation degree or high glass transformation temperature can be dyed, and fibers after dyeing have the advantages of evenness, bright colors, high dyefastness, improvement of light fastness and little impact on physical properties.

The invention provides a method for dyeing a modified cellulose fiber textile by a rhubarb and turmeric dye. The method comprises the following: 1. a step of modifying a quaternary ammonium group of the cellulose fiber textile, in which a modifying agent with a concentration of 50 to 60 g / l and sodium hydrate with a concentration of 12 to 18g / l react for 40 to 60 minutes at a temperature of between 64 and 75 DEG C, the bath ratio is 1:30; in the post treatment after the modification, the fiber textile is washed by hot water at a temperature of between 40 and 50 DEG C for 10 minutes, is washed by cold water, is prickled by HAC with a concentration of 2 to 3g / l for 2 minutes, is washed by water to be neutral and is dried; 2. a step of preparing the dye solution by the sodium hydrate extracting agent with a concentration of 15 to 45g / l; and 3. a step in which the modified cellulose fiber textile is dyed, washed by water and dried directly by the dyeing technique and is washed by soap, washed by water and dried. The technique is simple and easy to implement, does not need the mordanting and the fixation processes and the like, has high rate of dye-uptake, good dye quality and the friction resisting color fastness and the colorfastness to washing up to more than three grades, is nontoxic, does not pollute the environment, and has low cost, and remarkable economic benefits and environmental benefits.

The invention relates to a nano-carbon black preparation method and an application of nano-carbon black in fabric dyeing, belonging to the technical field of textile chemical engineering. The preparation method is characterized in that an ultrasonic technique is utilized to prepare the nano-carbon black, so as to obtain a nano-carbon black pigment dispersion system with good dispersivity and high stability; the prepared nano-carbon black pigment dispersion system can be used for dyeing natural cellulose fiber and regenerated cellulose fiber fabrics; and the dyed fabrics are pure in color, good in jet-black degree and excellent in color fastness. The preparation method has the advantages of simple process, low cost and little pollution.

The invention belongs to the technical field of fiber dyeing, and particularly relates to a dyeing method for calcium alginate fibers. According to the dyeing method for the calcium alginate fibers, dye containing polyethylene polyamine framework structures is adopted to dye the calcium alginate fibers; the defect that the fibers are damaged due to the fact that inorganic salt needs to be added for dyeing accelerating in the dyeing process of traditional dye is fundamentally overcome, and the strength loss of the fibers after dyeing is small; meanwhile, compared with the weaker intermolecular force and hydrogen-bond interaction between general direct dye and the fibers, the acting force between molecules of the dye and the fibers is higher, and then the advantages of being higher in dye-uptake rate and soaping fastness and the like are achieved; the dyed fibers are uniform and bright in color and meet the dyeing requirements of the calcium alginate fibers, and the dyeing method is economical in energy and environmentally friendly.

The invention relates to a method for extracting natural pigment from walnut green hulls and using the natural pigment for dyeing and belongs to the field of natural product extraction and application. According to the method, subcritical water serves as an extraction solvent, polyphenol, flavone, anthraquinone, naphthoquinone and other natural pigment in the walnut green hulls are extracted, and a natural pigment extraction solution is directly used for dyeing cotton and wool fabric. The method has the advantages that the active ingredient extraction rate is high, no organic solvent is used in the extracting and dyeing process, the process is environmentally friendly, and products are free of pollution, safe, free of toxicity and the like. No toxic and harmful pigment ingredient is contained in dyed fabric obtained through the method, and the method is suitable for dyeing the various cotton and wool fabric and particularly suitable for dyeing infant articles for use, underwear and other articles due to the fact that the natural pigment of the walnut green hulls further has anti-bacterium activity, anti-oxidation activity and the like.

The invention discloses a method for dyeing CDP / nylon / PU knitted fabrics. The method is characterized by comprising the following steps: 1, putting fabrics and cold water into a dye vat, and sequentially adding an anti-settling agent, dyeing acid, anhydrous sodium sulfate, an anti-set-off agent, cationic dyes and acid dyes; 2, raising the temperature to 70 DEG C at a speed of 2 DEG C per minute, and keeping the temperature for 5-10 minutes; 3, raising the temperature to 110-120 DEG C at a speed of 1 DEG C per minute, and keeping the temperature for 30-60 minutes; and 4, reducing the temperature to be 60 DEG C, and sequentially draining, soaping, color fixing and discharging the fabrics out of the vat. According to the dyeing scheme, a bath dyeing process can be performed on the CDP / nylon / PU knitted fabrics by using the cationic dyes and acid dyes, the dyeing process is simplified, the production cost is reduced, and the CDP / nylon / PU knitted fabrics with different styles and diversified colors can be produced by utilizing dyeing difference of the two dyes.

Disclosed is a superfine dispersion method for dispersed dye, wherein dispersion dyes are subject to mechanical dispersion and ultrasonic wave dispersion simultaneously in an aqueous environment, the dispersion dyes are the end product of filter-pressed filter cake or sanded filter cake or dried grout of the original dyes during dispersion dyes manufacturing process, and dispersing agent is charged into the filter cake during the process of mechanical dispersion and supersonic wave dispersion.

The invention discloses a dyeing technology of bright blue-containing reactive dye. The technology includes the following steps: 1, scouring and bleaching: sequentially adding 1g / L of a stabilizer, 3.5g / L of soda ash, 0.35g / L of a non-foam detergent agent, 2.0g / L of a wrinkle resistant agent CD and 6g / L of hydrogen peroxide at 40DEG C, and heating to 90DEG C, wherein the time is 60min, and a bath ratio is 1:10; and 2, dyeing: dyeing by using 3g / L of active bright blue B-BGFN, 1.43g / L of active bright yellow B-4GLN, 0.95g / L of active golden yellow B-4RNF, 80g / L of sodium sulfate, 25g / L of soda ash, 2g / L of a leveling agent RG-133 and 1g / L of a dispersant EXL-106, wherein a bath ratio is 1:10. The dyeing technology has the advantages of simplicity, practicality, difficult fading, improvement of the dyeing defect problem of grey cloth, and obvious fastness improvement.

A method for dyeing cotton fiber fabric by multiple auxiliaries comprises steps as follows: dye, positive ions T, a dispersant CNF, nonionic alicyclic amine polyoxyethylene ether and an acid-base buffering agent are placed into a mixed liquid of an alcohol organic solvent and water and uniformly stirred to prepare a dye liquid; the dye liquid and the cotton fiber fabric are placed in a dyeing machine, the fabric is dyed at the temperature of 40 DEG C, heated at the speed of 1.5 DEG C per minute and subjected to thermal insulation dyeing; flaked soap and sodium carbonate are placed into the mixed liquid of the alcohol organic solvent and the water and stirred uniformly to prepare a washing solution; the dyed cotton fiber fabric is placed into the washing solution for washing; the cotton fiber fabric is dried and subjected to aftertreatment, stentering, preshrinking, cloth inspection and rolling. According to the method disclosed by the invention, three types of auxiliaries are matched for use, the staining property is not influenced while the dye-uptake rate and the fixation rate of dye to cotton fiber are remarkably increased; and the dyeing process is simple, environment protection is realized, the cost is lower, and the method is suitable for large-scale production.

Said invention discloses a method for preparing ultrafine disperse dyes. The disperse unfinished products is made by reaction to obtain filter cake through filter-press, then added with organic solvent A to solve, then added with solution of organic solvent an of dispersant, through stirring to obtain mixer containing dirperse dyes, dispersant and organic solvent A. Adding organic solvent B to replace, removing organic solvent B to obtain paste of disperse dyes, then drying to obtain solid disperse dyes. The above mentioned organic solvent an is alcahol or acetone, organic solvent B is benzene, toluene or xylene, dispersant is dispersant MF or lignosulfonate. The dyes particle cab be dispersed into size of 10-100 nm by said method which can reduce cost, simplify dyeing process and raise dyeing quality.