82 results about "Reactive dye printing" patented technology

A formulation and method of printing an ink or meltable ink layer having reactive dyes or mixtures of reactive dyes and disperse dyes as colorants. The ink or ink melt layer also includes an alkaline substance, a binder, and optionally, a heat-activated printing additive. Permanently bonded color images are provided by the reaction between the reactive dye and the final substrate, which may be any cellulosic, protein, or polyamide fiber material, or mixtures with polyester. Reaction occurs upon heat activation of the printed ink image.

The invention relates to a cold dyeing direct printing process suitable for reactive dye printing of a full cotton fabric. The process is applied in printing and dyeing industry. The process comprises the steps of padding the full cotton fabric in a pre-processing liquid; drying the full cotton fabric; printing with cold dyeing direct printing color paste; drying and steaming to fix the color; washing with water and drying to obtain a finished product. As no alkali agent is added in the printing color paste, steaming and post-treatment are not necessary to perform immediately after printing; no weather mark is generated during a placement process; steaming time is short; and the finished product has brighter colors than that of a conventional process.

The invention discloses urea-free active dye printing color paste and a printing technology thereof. The printing color paste is prepared from, by weight, 1%-10% of active dye, 0.5%-3% of PEG 200, 0.5%-3% of glycerol, 2%-5% of sodium bicarbonate, 0%-1% of sodium carbonate, 1% of reserve salt S, 3%-6% of a thickening agent PTF-RT and the balance water. A cotton fabric is printed through the printing color paste according to the processes of printing, drying, steaming and aftertreating, and the printed fabric is bright in color and luster and good in color fastness; urea is replaced with glycerol and PEG 200 for active dye printing, and therefore the problem that water eutrophication is caused by ammonia nitrogen compounds in wastewater can be thoroughly solved. The thickening agent PTF-RT is a high-concentration and high-quality synthetic thickening agent which is specially developed for active dye printing of the fabric, and the production cost is reduced by replacing sodium alginate with the thickening agent PTF-RT for active dye printing.

The invention discloses a printing raw paste capable of improving reactive printing fineness of real silk fabrics, belonging to the technical field of reactive dye printing of the real silk fabrics. The printing raw paste comprises water, a waster softening agent, an antireducer, urea and an alkali agent. The printing raw paste is characterized by comprising a composite paste, wherein the mass percent of the composite paste is 4-5 percent and the mass percent of the urea is 2-5 percent. By changing the traditional sodium alga acid reactive printing system, the invention obviously improves the fineness of the reactive printing of the real silk fabrics, and thoroughly solves the problem of dispersion of the reactive printing of real silks and blending or interweaving fabrics thereof. It has been found that the invention solves the technical difficulty of puzzling the industry for many years.

The invention discloses a cotton fabric reactive dye printing method with small water volume. A light color printing comprises the steps of: carrying out grafting modification on cotton fiber to introduce cation groups into cotton fiber molecules and increase adsorption rate of anion reactive dye, colouring (anchorage) rate of the reactive dye and color fastness; meanwhile, employing a synthesis thickening agent with low solid content as a printing color paste to reduce solid content in a slurry of the color paste; adding reinforcing agent and softener into the color paste to further enhance color fastness and hand feel of the printing fabric. The printing fabric is washing-free after printing. As for medium and dark color printing, modified sodium alginate is employed as protoplasm of the printing color paste to enhance washability, thereby reducing time and water amount for washing and realizing light washing. Processes of pattern design, printing board preparation, printing, steaming and after-treatment are the same as a traditional technology. The method of the invention can shorten dye printing technology, save water and reduce sewage discharge.

The invention relates to household textile bedding and processing technology thereof, and particularly relates to Parster (PST for short, Paisite in Chinese) fiber bedding and a production method thereof. Sanded fabric is made of a blended interweaving of cotton and Parster fiber. Reactive dye printing is conducted on the sanded fabric. A key technical problem how polyester / cotton sanded fabric can be printed by using reactive dye in the process of dye printing is mainly solved. Parster fiber sanded bedding can not only retain original cotton fiber sanded bedding characteristics, but also undergo the reactive dye printing. Therefore, quality and performance of the sanded bedding can be promoted.

The invention relates to vegetable reactive dye printing paste comprising 80-90 percent of lightly-crosslinked ultra-high-viscosity high-substitution-value carboxymethyl starch, 3-6 percent of sodium polyacrylate, 5-9 percent of polyacrylamide, 1-2.5 percent of fatty alcohol polyethenoxy ether, 1-2.5 percent of solid lanthanon powders and the like. The vegetable reactive dye printing paste is produced according to the following process: the carboxymethyl starch prepared after secondary reaction is carried out the coarsely crushed, dried and finely crushed to be made into fine particle materials of granularity under 40 meshes; then the liquid material prepared from the sodium polyacrylate, the polyacrylamide, the fatty alcohol polyethenoxy ether and the like which are uniformly mixed is processed into solid materials by a high-speed centrifugation atomization drying device, and finally the carboxymethyl starch and other raw materials are added into a material mixer to be stirred and mixed uniformly according to the production formula of printing paste and enters into an automatic packaging machine to be packed into product. The printing paste has superior printing performance to sodium alginate, has simple processing technology and low cost and is the optimal substitute of the sodium alginate printing paste.

The invention discloses reactive dye printing paste, which comprises, by mass, 5%-10% of a reactive dye, 5%-30% of acrylamide, 0.1%-0.5% of an initiator and the balance of water. Urea-free printing ofcellulose fiber fabrics with reactive dyes can be achieved by using acrylamide instead of urea as a reactive dye printing aid for cellulose fiber fabrics. Meanwhile, acrylamide is polymerized into polyacrylamide in the printing paste to serve as a thickening agent of reactive dye printing, and other thickening agents do not need to be added into the printing paste. Moreover, polyacrylamide washedinto a solution after printing can also be used as a flocculant for reactive dyes in wastewater under acidic and neutral conditions. The method can provide urea-free printing of the cellulose fiber fabrics via the reactive dyes, the printing and wastewater treatment costs are reduced, and the fastnesses of the printed fabrics are consistent with those of the conventional urea printing.

The invention discloses a method for preparing a composite paste for reactive dye printing. The composite paste is prepared by mixing modified starch, sodium carboxymethyl cellulose, and modified guar gum in a mass ratio of 8:3 to 4:2. ~3 Mix evenly at room temperature, then disperse in an ethanol solution with a concentration of 80% by mass, add an emulsifier, react at 40°C~50°C for 2~3 hours, centrifuge, dry, and pulverize to prepare a composite for reactive dye printing. paste. The method of the present invention prepares the composite paste with low cost, high paste rate when used as reactive dye printing, good storage stability, fine paste, good permeability, clear pattern outline, soft fabric, no need to add any preservatives, storage Time should not be corrupted.

The invention discloses reactive dye printing paste as well as a preparation method and an application thereof. The reactive dye printing paste is prepared from the following materials: sepiolite, kerosene, an emulsifying agent, urea, a reserve salt S, soda ash and water. The invention further provides an application of the reactive dye printing paste to printing and dyeing of towels and velvet fabrics. A preparation process of the reactive dye printing paste comprises the following steps: preparing the reactive dye printing paste, preparing color paste, printing a textile, drying, steaming, washing with water, soaping and drying; the reactive dye printing paste is formed by compounding the sepiolite and the emulsified kerosene; the sepiolite and the emulsified kerosene have good compatibility; and the formed color paste has good printing-through property and good stability of resistance to water and electrolyte and is low in cost, and the printing is ecological and environmentally friendly.

The invention discloses a preparation method of carboxymethyl starch used for reactive dye printing. Starch is taken as a main raw material, a compound modification technology is adopted, different modification reactions are successively completed in slurry taking a mixed solvent as a reaction medium, and finally the carboxymethyl starch is generated. The preparation method comprises the following steps: firstly dispersing starch in the mixed solvent containing ethyl alcohol and isopropyl alcohol, adding alkaline liquor for carrying out low temperature alkalization, then adding an etherifying agent for carrying out high temperature etherification, then adding a crosslinking agent at a certain temperature for carrying out micro-crosslinking, after crosslinking reaction is finished, washing, drying, and smashing, so that the carboxymethyl starch is obtained. The preparation method disclosed by the invention has the advantages that the mixed solvent is adopted in the technology, so that carboxymethylation reaction of the starch can be promoted, and substitution uniformity of the product is improved; the starch is subjected to low temperature alkalization, so that starch pasting can be effectively prevented, and the solubility and transparency of the product are improved; high temperature etherification can promote the permeation effect of feed liquid to the starch, and the reaction rate is accelerated; and micro-crosslinking can improve the structural viscosity and salt resistance of the product to a certain degree. The carboxymethyl starch product can completely replace sodium alginate.

The invention discloses a cellulose fiber fabric printing process. The cellulose fiber fabric printing process comprises the following steps that 1, cationic modification of cellulose fiber fabric iscarried out; 2, bleaching, acid neutralization and drying are carried out; 3, reactive dye printing is carried out; 4, aging, washing, soaping and finished product shaping are carried out; cationic modification is cold reactor modification or impregnation modification; the amount of a cationic modifier in cold reactor modification is 20-50g / L, and the amount of a cationic modifier in impregnationmodification is 10-30g / L; and in reactive dye printing, catalysts such as triethylene diamine, niacin, trimethylamine, and pyridine need to be added. According to the cellulose fiber fabric printing process, moderate cationic modification is carried out on the cellulose fiber fabric, and meanwhile, the catalysts are assed during printing, so that in the process of ageing and color-fixing, cation adsorption and catalysis and color-fixing are performed simultaneously, a synergistic effect is achieved, the high color-fixing rate of the reactive dye is ensured, the difficulty of washing after printing is reduced, the problem of white background staining is effectively solved, and the amount of water used for printing washing is reduced.

The invention relates to a method for improving the decoloration ratio of wastewater from reactive dye printing, and belongs to the technical field of textile dyeing and printing. The method comprises the following steps of: adjusting the pH value of the wastewater from reactive dye printing to be neutral, slowly adding 0.5-2g / L calcium chloride and stirring to dissolve, and removing generated suspended solid by a millipore filter; adding 0.5-1g / L iso-decanol polyoxyethylene ether (the epoxy value is 7), and holding for 15 min after stirring uniformly, and at last photocatalytically decoloring the painting wastewater by using titanium dioxide. According to the method, the photocatalytic decoloration effect of the titanium dioxide on the wastewater from reactive dye printing can be effectively improved, and chromaticity of the printing wastewater can be reduced.

The invention discloses a urea-free reactive dye printing method with special mineral soil as a thickener. Mill base is prepared from x% of active dye, 0.5-1.5% of resist salt S, 1-3% of sodium bicarbonate, 60-80% of stock thickener and y% of water, wherein the stock thickener is prepared from, by mass, 48-58% of raw mineral soil and 35-45% of sodium modified mineral soil. The printing process includes the steps of mill base preparing, printing, drying (80 DEG C), steaming (100-102 DEG C, 10 min), water washing (by means of cold running water), soap boiling, water washing and drying, wherein the bath ratio is 1:50, the density of soap flakes is 3 g / L, the density of sodium carbonate is 2 g / L, the temperature of soap boiling is 95 DEG C, and soap boiling time is 10 min. By means of the method, printed fabric has the printing effects of high surface color yield rate, clear pattern outline and soft hand feeling. The method has the remarkable advantages that the special mineral soil thickener replaces a sodium alginate thickener, and cost is reduced; urea-free printing reduces emission of ammonia and nitrogen, and ecological environment protection is easy.

The invention discloses a color fixing process at high temperature of reactive dye printing, which adopts reactive dyes to print the preprocessed fabrics, and also comprises the following steps or procedures of whitening, dying, printing alkali chemicals and slurry, washing and drying and the like. The process is characterized by comprising the following steps: (1) preprocessing before the preprocessed fabric is printed, namely co-bathing, padding and drying by whitener with sodium carbonate, absorbent, anhydrous sodium sulphate substitute; and (2) fixing color to the printed fabric at high temperature of 160 DEG C for 3min. The color fixing process of the invention has the following beneficial effects: (1) the color fixing process at high temperature is adopted, thus water, vapor and energy consumption are reduced, waste emissions, such as dust, carbon dioxide and nitric oxide and the like are less, the energy is saved, the emission is reduced and the product cost is lowered; (2) the color fixing temperature is high, the color fixing time is short, the reactive dye is rapidly reacted with the fabric fiber, thus improving the stability of the production process, increasing product coloring rate and color fastness, and greatly improving the quality of the products; and (3) working hours are reduced, and the work efficiency is improved.

The invention discloses a method for recycling sodium alginate from reactive dye printing wastewater by virtue of a calcium coagulation-chelating agent process. The method is characterized by firstly chelating sodium alginate in reactive dye printing wastewater with calcium ions to form calcium alginate precipitates, then adding a calcium ion chelating agent which has a stronger chelating ability to the calcium ions than the chelating ability of calcium alginate to capture the calcium ions from calcium alginate, and transforming into sodium alginate to achieve the aim of recycling sodium alginate. The method specifically comprises the following steps: adding a calcium salt into the reactive dye printing wastewater under the condition of stirring to form the calcium alginate precipitates, and filtering and collecting; adding a certain quantity of the calcium ion chelating agent into recycled calcium alginate, and reacting for a period of time to obtain sodium alginate; and separating out sodium alginate by adding ethanol. The method disclosed by the invention has the advantages that the method for recycling sodium alginate from the reactive dye printing wastewater can be used for saving the production cost, achieves the cyclic utilization of resources, and can also be used for reducing the content of organic matters in the wastewater and reducing the burden of wastewater treatment.

The invention discloses a reactive dye printing technology of pure cotton cloth. The reactive dye printing technology comprises the following steps: (1) preparing a paste material; (2) preparing a mill base; (3) printing; (4) carrying out fixation; and (5) carrying out post-treatment. The reactive dye printing technology of the pure cotton cloth is novel in thinking, simple, convenient and easily to realize; and the prepared pure cotton printed cloth has the advantages of no assistant residue, soft fabric, high color fastness and low energy consumption, does not contain a cancerogenic substance, and is green, environment-friendly, and wide in market prospect.

The invention discloses a reactive dye printing technology for wool textiles. The reactive dye printing technology comprises steps as follows: (1), paste material preparation: 20%-25% of sodium alginate, 8%-12% of compound enzyme, 5%-10% of acrylic acid and 58%-65% of water are taken and put in a reaction vessel, and the components are heated and stirred at 45-55 DEG C until a mixture is transparently pasty; (2), color paste preparation: 50%-55% of the paste material prepared in the step (1), 8%-13% of a reactive dye, 5%-9% of a penetrant, 10%-15% of silicone oil and 16%-22% of sodium hydroxide are taken, put in the reaction vessel and stirred and mixed uniformly, and color paste is obtained; (3), printing; (4), steaming fixation; (5), soaping and drying; (6), shaping. The technology is simple and easy to control, and the wool textiles prepared with the technology have excellent anti-felting performance and are high in color fastness, low in energy consumption and good in environmentalprotection property.

The invention discloses a preparation method of printing paste for reactive dye direct printing, and belongs to the technical field of chemical printing and dyeing. The method comprises the followingsteps: taking 1-5wt% of sulfuric acid or phosphoric acid as a catalyst; reacting alginic acid with HO-R-COOH and HOOC-R-COOH (R = alkyl, phenyl or naphthenic base) for 12-24 hours according to the mass ratio of 1: 1.2-1: 3 under the condition that the pH value is 2-5 and the reaction temperature is 100-135 DEG C, cleaning with an ethanol solution after the reaction is finished, and drying the product at 85-100 DEG C to obtain alginate powder, namely the prepared printing paste. The alginate reactive dye printing paste prepared by the method is high in solubility in water, good in water wrapping property, clear in printing outline, high in paste removal rate, soft in hand feeling of a printed fabric after being washed with water, good in stability, obvious in thickening effect and not easyto hydrolyze.

The invention discloses a novel netlike printing adhesive formed by copolymerizing acrylate and organosilicone. Polymerization monomers are selected from a vinyl monomer, an acrylate monomer, a functional monomer, organosilicone oil, an emulsifying agent and an initiator; the molecular structure of the conventional acrylate-based product is changed to synthesize the netlike printing adhesive formed by copolymerizing the acrylate and the organosilicone. The novel netlike printing adhesive has excellent performance; compared with the conventional products, the novel netlike printing adhesive hasthe advantages as follows: a printing technology and the product quality are significantly improved, the energy is saved, the cost is reduced, the printing effect is improved, and the physical styleof a product is changed; the novel netlike printing adhesive is soft and comfortable in hand feel, is similar to reactive dye printing, but has better fastness, has very good elasticity and flexibility, and can be applied to printing of elastic knitted fabrics; a film can be formed by drying at room temperature, and the color fastness is good, so that the novel netlike printing adhesive can be applied to manual printing without drying or baking equipment; compared with the existing products in the market, the novel netlike printing adhesive has the advantage as follows: the using cost thereofcan be reduced by 20-25%.

The invention provides printing paste adopting an ionic liquid. The printing paste comprises components in percentage as follows: 0.1%-10% of cationic reactive dyes, 1%-4% of sodium bicarbonate, 0-1% of reserve salts and the balance of 1-butyl-3-methylimidazolium hexafluorophate. 1-butyl-3-methylimidazolium hexafluorophate in the printing paste is taken as the ionic liquid and can be used as a thickener, a solvent, a penetrating agent or a washing agent. Compared with conventional reactive dye printing paste adopting sodium alginate, the printing paste adopting the ionic liquid has the benefits as follows: (1), original paste preparation is not required, and a preparation method is simple; (2), soap washing is not required after printing treatment, time and labor are saved, and the operation is convenient.

The invention discloses water-free reactive dye printing ink and a preparation method thereof. The water-free reactive dye printing ink is prepared from the following raw materials in parts by weight:10 to 20 parts of reactive dye, 3 to 7 parts of surfactant, 2 to 6 parts of pH regulating agents, 1 to 3 parts of softening agents, 2 to 4 parts of wetting agents, 1 to 2 parts of antifoaming agents,2 to 4 parts of bactericides, 0.2 to 0.4 part of graphene, 3 to 5 parts of hydroxymethyl cellulose and 20 to 30 parts of deionized water. The water-free active dye printing ink provided by the invention has the high color fixing rate; low-chromaticity sewage is reused; the sewage discharge is effectively reduced. The water-free reactive dye printing ink has the advantages that the preparation process is simple; the operation is easy; the raw material price is low; the raw materials can be easily obtained; no toxicity and no harm exist; the volatility is very low; no irritation is caused on the human body.

The invention belongs to the technical field of textile dyeing and finishing and in particular relates to water-based suede slurry used for all-cotton flannel as well as a preparation method and an application method thereof. The water-based suede slurry is prepared from the following raw materials in parts by weight: 30 parts of acrylic resin, 30 parts of printing paste, 3 parts of an emulsifier, 5 parts of a brightener, 3 parts of a flatting agent, 2 parts of a leveling agent, 5 parts of a thickener, 7 parts of organic pigments and 15 parts of purified water. According to the water-based suede slurry used for the all-cotton flannel as well as the preparation method and the application method thereof, environment-friendly organic pigments red, yellow, blue and black, acrylic resin HDL and CMC printing paste are adopted, combined machining is carried out, environment-friendly water-based suede slurry which can replace reactive dye printing is prepared, existing flat and rotary screen printing equipment can be utilized for carrying out direct printing, and the traditional technological processes such as ageing and washing are eliminated in a printing technological process, so that green printing and dyeing and ecological discharge requirements are met.