686 results about "Acid dye" patented technology

The invention provides a wet-method transfer printing process of natural fiber and nylon, which mainly comprises the following steps: (1) selecting acidic printing ink or active printing ink; (2) printing: printing the surface of PET or BOPP film with the selected printing ink to obtain a transfer printed film; (3) transfer printing: treating natural fiber and nylon with a soaking liquid, subjecting the transfer printed film and printed fabric simultaneously to the compression by a rolling machine; and (4) oven-drying: oven-drying the fabric after the transfer printing is completed and baking to allow color fixation. The invention has the advantages of high transfer printing rate, high color yield of fabric, bright color, good color fastness, less pollution, reduced water consumption, simple process, high production efficiency, low cost, and success in non-paper transfer printing.

The present invention provides a treatment composition comprising a hydrophobic dye and a second dye, selected from hydrolysed reactive dyes, acid dyes and direct dyes; and a surfactant.

The invention provides a blue colored composition for a color filter, a color filter and a color display, which are used during the manufacture of color filters of high color characteristic, heat resistance, light resistance and solvent resistance.The blue colored composition for color filters comprises a binder resin and a colorant.The colorant comprises a blue pigment and a salt forming product.The salt forming product is formed by a xanthene series acid dye and a compound with cationic groups.

The invention provides a modified polyester complex fiber. The complex fiber is prepared by compounding modified polyester and thermoplastic resin, wherein the modified polyester accounts for 10 to 90 percent of the total weight of the complex fiber, and the thermoplastic resin accounts for 10 to 90 percent of the total weight of the complex fiber; and the modified polyester structure comprises structural units shown in the specifications, wherein m1 is more than 1 and less than 160, m2 is more than 1 and less than 70, m3 is more than or equal to 0 and less than 20, and m4 is more than or equal to 0 and less than 20. The complex fiber can be dyed at normal temperature and normal pressure by using acid dye and disperse dye, and has the advantages of high color fastness, high elasticity and comfortable handfeel.

The invention relates to the technical field of magnetic metal organic framework materials, in particular to a preparation method and application of Fe3O4/MIL-101(Cr). The method includes the steps of preparing MIL-101(Cr) material through a hydrothermal method to serve as a template, and generating Fe3O4 particles in situ in holes of MIL-101(Cr) through a reduction co-precipitation method under the ultrasonic conduction and in a nitrogen protection state. The Fe3O4/MIL-101(Cr) composite obtained through the method is strong in magnetism, large in surface area, shortened in synthesis time, controllable in synthesis condition, novel in synthesis method, simple and easy to repeat, stable and controllable in prepared material quality, and capable of being synthesized in batches. The Fe3O4/MIL-101(Cr) composite is good in effect and can be repeatedly used six times or more when used for adsorbing and removing acid dyes in environmental water.

Pretreatment agents for hair colorings with acid dye comprising at least one cationic polymer selected from the group consisting of polymers having amino groups and polymers having quaternary ammonium groups. The pretreatment agents for hair colorings with acid dye are used for improving coloring ability and color fastness of hair colorings with acid dye.

The log dyeing method is one circular hot pressing dyeing and normal temperature and pressure dyeing method on log with water content not higher than 8 % and in proper length. The log dyeing process includes the following steps: compounding acid dye aqua; soaking at room temperature for 120-480 min; dyeing at 25-120 deg.c and 10-15 Mpa under stirring for 30-60 min; lowering to room temperature; dyeing at 25-120 deg.c and 10-15 Mpa under stirring for 30-60 min; and so on until reaching the total dyeing time of 600-900 min; washing with water; drying at 25-120 deg.c to water content not higher than 8 %; and discharging. The log dyeing maintains the natural grains of log, raises the density of timber, homogenizes the color of timber, and raises the value of timber.

The invention relates to an acid dyeable polyester fiber and a preparation method thereof. Combining polyamide and polyethylene-methacrylate to form polyester acid-dyeable composite additives, adding them to polyester compounds, and blending and spinning to obtain acid-dyeable polyester fibers. Due to the addition of the composite additive, especially the introduction of polyethylene-methacrylate, the compatibility of polyester and polyamide has been improved, and the polyester fiber has better acid dyeability and good mechanical properties. .

The invention relates to the field of functional materials, particularly a preparation method of an adsorbent for acid dye wastewater treatment. The invention mainly solves the technical problem that dyeing wastewater can not be easily decolorized, can not achieve the discharge standard and the like in the prior art. The preparation method comprises the following steps: putting 8-10g of beta-cyclodextrin into 1-2g of citric acid monohydrate, and adding 1g of PEG-400 and 0.25g of sodium dihydrogen phosphate to obtain a beta-cyclodextrin polymer by polymerization; adding a silane coupling agent into a chitosan solution; and cross-linking the beta-cyclodextrin polymer with the chitosan to obtain a beta-cyclodextrin-chitosan porous membrane, wherein the mol ratio of the chitosan to the beta-cyclodextrin polymer is 1:3..

The invention relates to nylon sea-island microfiber leather fabric composite dye and application thereof. The dye is formed by combining acid dye and active dye. The application is as follows: at normal temperature, sequentially adding an acid level dyeing penetrating agent and composite dye to a dye bath, regulating pH value to 5-6, soaking a fabric in the dye bath, increasing temperature to 105-110 DEG C, preserving for 40-60min, and completely washing at 70-80 DEG C to obtain the dyed fabric; soaking the dyed fabric in a fixation bath, increasing temperature to 40-50 DEG C, preserving for 20-30min and washing. The composite dye formed by combining the acid dye and the active dye, is free from components violating against national technical standard for safety, can consistently dye poly urethane (PU) and nylon superfine fiber, and in particular can dye nylon microfiber leather. The composite dye is complete in chromatography, good in compatibility, synchronous to dye and easy to control quality.

The invention discloses a method for dyeing and finishing polyester and nylon composite filament corduroy, which comprises the following processes: checking a gray fabric; sewing the gray fabric; pre-shrinking in full width; splitting; pre-shaping; dyeing; soft finishing shaping; and packaging an end product, wherein a full width water washing machine is used for performing the process of pre-shrinking in full width; the process of splitting is performed according to a thermal treatment method and an alkali treatment method; during the process of pre-shaping, the temperature is 195 DEG C-200 DEG C and an assembly line turning speed is 30m/min-35m/min; dye liquor in the process of dyeing is aqueous solution of disperse dye or mixed aqueous solution of disperse dye and acidic dye; and the process of the soft finishing shaping is as follows: the corduroy passes through a material chute containing 10-15g/l softening agent aqueous solution, and then the corduroy is dried and shaped at high temperature, wherein the drying temperature is 165 DEG C-175 DEG C, the assembly line turning speed is 30m/min-35m/min and the softening agent is an organic silicon softening agent. The end product prepared according to the method provided by the invention has the advantages of high strength, full and mild velvet feeling, excellent shape-keeping property, convenience in washing and finishing, uniform dyeing effect, and capability of obtaining specific gigging effects such as frostwork or polyester peach skin, and the like.

The invention discloses dye intaglio printing ink for transfer printing by the wet method, comprising the following compositions in weight percentage: 1 to 60 percent of dye, 1 to 20 percent of a bonding material and 20 to 98 percent of a solvent. The invention also discloses a method for preparing dye intaglio printing ink for transfer printing by the wet method . The method comprises three steps, namely dissolving of the dye, filtering of solution and preparing the printing ink. The dye intaglio printing ink for transfer printing by the wet method has the advantages that the manufacturing process of the printing ink is simplified greatly, the manufacturing time of the printing ink is shortened; the hydrolyzation of the dye and the deterioration of the remaining printing ink are avoided, and the printing ink can be used for a plurality of times; the printing ink has good printing adaptability to various common plastic membranes; the gravure printing ink has high quality, an active dye or an acid dye or a positive ion dye printed on the plastic membrane or the paper of a coating separating agent has excellent dissolving performance in the wet state, and the dye intaglio printing ink is suitable for transfer printing process by the wet method.

The invention discloses a reverse micelle system and an application thereof in acid dye dyeing. The reverse micelle system is characterized by comprising the following components in percentage by weight: 90%-98% of supercritical carbon dioxide, 1%-5% of a surfactant, 0-0.5% of an acid dye and the balance of water. Supercritical carbon dioxide dyeing is organically combined with reverse micelle dyeing; the supercritical carbon dioxide is taken as a non-polar organic solvent in reverse micelle dyeing due to the fact that the supercritical carbon dioxide is nontoxic, tasteless and not easy to combust and is an environment-friendly chemical solvent; in addition, the system only contains very little water of a reverse micelle-coated soluble dye; the amount of water can be greatly reduced; meanwhile, the carbon dioxide is recovered in the form of gas under the supercritical condition; the non-polar organic solvent, the surfactant and water can be easily separated; and recovery and cyclic utilization are achieved.

The invention discloses an environment-friendly steam-/wash-free dye printing paste, which is implemented by re-formulating monomer components partially in the prior binder. The steam-/wash-free binder can meet the requirement of random combination with acidic dyes, active dyes and disperse dyes; and is suitable for both manual and mechanical printing. The product printed with the blend of synthetic steam-/wash-free binder has bright color, clear pattern, high color yield, uniform printing block, good flowability, and soft touch. The invention is suitable for various printing processes such as direct printing, discharge printing and burnt-out printing, and is also used for printing various textile fabrics after mixing with other dyes. The invention simplifies the printing process, solves the environmental problem of the prior printing process, and avoids the environmental pollution of waste water.

The invention discloses inkjet printing acidic ink suitable for industrial nozzles and a preparation method thereof. The ink comprises an acidic dye, a solubilizer, a surfactant, an organic solvent, a moisturizer, water and the like. The solubilizer is at least one selected from polyether polyol, caprolactam, and an ethylene oxide-epoxypropane copolymer; the surfactant includes at least two selected from EH-6, EH-9 and the like; the moisturizer is an amino acid moisturizer; and a defoamer is at least one selected from SUFYNOL DF-110D, BYK-094 and 104E. By means of the solubilizer, solubility of the acidic dye in the ink is effectively increased and flowability and jet-ability of the ink in an ink path and the nozzle are improved. The surfactant combination having low contact angle and low dynamic surface tension enables the ink to have better flatting and wetting properties. The combination of the solubilizer, the surfactant and the moisturizer enables the ink to have better universality and to be smoother, so that the ink is suitable for the industrial nozzles.

The invention discloses a treatment method of acid dye mother liquor wastewater. According to the treatment method, the collected acid dye mother liquor wastewater is subjected to acidification, microelectrolysis, flocculation, concentration and crystallization and separation, thereby obtaining high-quality sodium salt damp products, and the sodium salt damp products can be recycled to industrial production after being dried, and distilled water and cooled water can be recycled to production, and the collected heat energy also can serve as production energy sources to use. The treatment method reduces the treatment cost of wastewater, and is an environment-friendly and economical treatment method.

The invention discloses an environment-friendly acid black dye composition, which consists of the following components in percentage by weight: 3 to 15 percent of dye component A shown in a formula (1), 38.5 to 52 percent of dye component B shown in a formula (2), 0.2 to 1.0 percent of dye component C shown in a formula (3), and the balance of assistant. The dye composition has super compatibility, has the advantages of wide application range of pH value, high color yield, good level-dyeing property and good various fastnesses during dyeing, has more remarkable advantage in the aspect of water washing fastness, and is an environment-friendly black acid dye with superior performance.