62results about How to "Uniform dyeing effect" patented technology

The invention discloses a method for cation modification and salt-free dyeing of a cellulose fiber fabric. The method comprises the steps as follows: preparing a high-polymer cation modifier aqueous solution with soft water, adding the cellulose fiber fabric, then adding NaOH, exerting pressure, heating the solution for a thermostatic reaction, performing cooling and pressure relief, discharging the modifying solution, and performing washing to obtain a cation-modified fabric; placing the cation-modified fabric in a dyeing machine, adding the soft water, sequentially dissolving reactive dye and sodium carbonate with return water, injecting the reactive dye and the sodium carbonate into the dyeing machine, heating the dyeing machine to the dyeing temperature, keeping the temperature, discharging a residual dyeing solution, and dehydrating and drying the fabric after a washing-soaping-washing process to obtain the salt-free low-alkaline dyed fabric. With the adoption of the method, salt-free low-alkali dyeing is realized, the problems of dyeing defects, color sinking and ring dyeing as well as reduction of the color fastness when cellulose fiber fabrics modified by high-polymer cation modifiers are dyed with reactive dyes are solved, a leveling agent is not required to be added during dyeing, the sodium carbonate and the dye can be added into a dyeing vat simultaneously, the sodium carbonate is not required to be added repeatedly during dyeing, and the dyeing operation is simple and easy to control.

The invention provides a dye composition for one-bath and one-type based dyeing and a dye method of the dye composition. The dye composition is used for blending nylon/cotton, nylon/Nien linen and interlacing a fabric. The composite comprises active azo dyes of three or more types and/or transmit metal complex dye compound of three or more types under the ratio of 1:2. The dye composition used in match with the general assistant can successfully and effectively carry out the one-bath and one-type method of light colour, neutral colour, deep colour and even black colour. The dye composition comprises one or more specified active dyes provided by the invention, and one or more metal complex dye under the ratio of 1:2. By adopting the dye composition, the implemented dyeing technology has the following characteristics: the one-bath and one-type method is carried out, so that the operation is simple and convenient, and great reproducibility is realized; the dyeing effects of light colour, neutral colour and deep colour, especially the black colour are provided; great homochromatism of nylon/cotton, and nylon/Nien linen dyeing is provided; and the colour fastness is excellent; and compared with the conventional technology, the dyeing method provided by the invention has the advantages of water saving, energy conservation, time saving, and emission reducing.

The invention relates to the technical fields of textile fabric printing and dyeing, in particular to environment-friendly efficient chemical fiber fabric printing and dyeing equipment and process. The environment-friendly efficient chemical fiber fabric printing and dyeing equipment comprises a bottom plate, a drying box and a wind-up roller, wherein two rotating supports are arranged at the right end of the upper surface of the bottom plate; the wind-up roller is rotatably arranged on the two rotating supports; a winding motor is arranged on one rotating support; and an output shaft of the winding motor penetrates through the rotating support to be connected with the end face of the winding roller. When an atomizer sprays, dyes and colors the upper surface of chemical fiber fabric, a negative pressure exhaust fan draws the interior of a case to a negative pressure state, so that a pressure difference is formed between the upper space and the lower space of the chemical fiber fabric,dye liquor sprayed on the chemical fiber fabric accelerates to permeate from the upper surface of the chemical fiber fabric to the lower surface of the chemical fiber fabric under the action of negative pressure, the quality problem caused by large chromatic aberration difference between a spray dyeing surface and a back surface due to poor penetration effect of the chemical fiber fabric in existing fabric printing and dyeing equipment can be effectively solved, and the dyeing effect is excellent.

The invention discloses an acid dye mixture with good colourability. The acid dye mixture has the following beneficial effects: as a natural auxiliary is added, the wet fastness of the acid dye after mixing is improved, the fiber handfeel can not be changed and the exhaustion of the dye is substantially improved; the wastewater generated after dyeing can be entirely degraded biologically; and the acid dye mixture is more suitable to dye nylons, silk, leathers, wool, paper, synthetic resins and other substances, simultaneously is quite suitable for various novel fibers and has uniform dyeing effect.

The invention discloses a PTT/PET (polytrimethylene terephthalate/polyethylene terephthalate) composite fiber fabric dyeing and finishing process capable of forming crepe feeding. The dyeing and finishing process includes a pretreating process, a dyeing process and a setting process, and the pretreating process includes a first open width OS desizing process and a second open width OS desizing process. According to the dyeing process, dyeing is implemented by the aid of a high-temperature and high-pressure airflow overflowing dyeing machine, the dyeing process is divided into a dyeing stage and a washing stage, the dyeing machine adopts an airflow mode at the dyeing stage, and the dyeing machine adopts an air-liquid mode at the washing stage. According to the setting process, a dyed gray fabric is set by a setting machine through setting liquid. According to the process, on the premise of ensuring of dyeing quality, a processed fabric can reach flawless, and winding crepe feeding of the fabric is given, so that the fabric has an obvious airflow style and a shape memory function in a weft direction, is good in color repeatability, soft in hand feeling, obvious in elastic force effect and meets clothes using requirements.

The invention discloses a dyeing process capable of forming a PTT/PET composite fiber fabric with a crepe feeling. According to the dyeing process, an adopted dyeing agent consists of a dyeing assistant and a dye, and the dye is a disperse dye. In the dyeing process, a high-temperature and high-pressure airflow overflow dual-purpose dyeing machine is adopted for dyeing, and when the temperature ofa dyeing cylinder of the dyeing machine reaches 45 DEG C, the dyeing assistant and the disperse dye are separately injected; the dyeing process includes a dyeing stage and a water washing stage; in the dyeing stage, the dyeing machine stays in an airflow mode, and in the water washing stage, the dyeing machine stays in a gas-liquid mode. During dyeing, the temperature of the dyeing cylinder is increased to 85 DEG C at the temperature increase rate of 0.7 DEG C/min, and the temperature is set as the initial dyeing temperature. On the premise of ensuring the dyeing quality, not only can the dyed fabric have no flaws and defects, but also the fabric can be endowed with a zigzag crepe feeling, so that the fabric has an obvious airflow style, good color reproducibility and a soft hand feeling;moreover, the fabric has a shape memory function in the weft direction, the elastic effect is obvious, and the requirements for clothing are met.

A polyester combined-filament yarn having an excellent stretch property and a bathochromic effect, as well as uniformity of apparent dyed color density, comprises two different multifilament components (A) and (B), wherein the multifilament component (A) comprises polyester filaments composed of polyethylene terephthalate (PET) polymer, a metal-containing phosphorus compound (a) and an alkaline earth metal compound (b), and a conjugate multifilament component (B) comprises side-by-side or eccentric core-sheath conjugate polyester filaments composed of two mutually different polyester resins (at least one of which is polytrimethylene terephthalate resin), the mass ratio (A)/(B) of components (A) and (B) is in the range of 80/20 to 50/50. Woven or knitted fabrics comprising the combined-filament yarn are useful for women's and men's fashion apparel and black formals.

The invention relates to a magnesium alloy anodizing solution. The anodizing solution is an aqueous solution containing hydroxide, silicate, meta-aluminate, phosphate, ethylene glycol and glyoxylic acid. The invention further provides a preparing method for the magnesium alloy anodizing solution and an anodizing method for the magnesium alloy with the adoption of the magnesium alloy anodizing solution. According to the provided magnesium alloy anodizing solution, sizes of pores in an oxidation film can be effectively reduced, uniformity of the pores is improved, and the dyeing effect of the rear section is improved accordingly.

The invention discloses a natural retarding agent for dyeing of cationic dye. The natural retarding agent is at least one of chitosan and derivatives thereof, wherein the concentration of the chitosan or the derivatives thereof is 0.1-4g/L. According to the retarding agent, natural chitosan or derivatives thereof, such as carboxymethyl chitosan and hydroxypropyl chitosan with different molecular weights are adopted for dyeing of cationic dye, and the problem that 1227 contains benzalkonium chloride and CTAB (cetyltrimethyl ammonium bromide) has strong fishy smell when a conventional cationic dye is used for dyeing are solved; and the prepared product has the quality consistent with that of a product prepared by adopting a conventional process, and has a certain antibacterial and anti-static performance. The technical scheme disclosed by the invention is simple in process and convenient to operate, does not have special requirement on cationic dye and equipment, and can be applied to large-scale production by utilizing conventional dyeing equipment.

The invention provides a black dye composition and dyeing application and method thereof. The black dye composition and the dyeing application and method thereof are used for dyeing of brocade/cotton and brocade/viscose blended fabrics and interlacing fabrics through the one-bath and two-step method. The composition comprises one or more reactive dye compounds shown in the general formula (I), one or more reactive dye compounds shown in the general formula (II) and one or more 1:2 metal complex dye compounds shown in the general formula (III), wherein the dye compounds are mixed in a certain proportion. Fastnesses, especially light fastness and wet treatment fastness, of the dye composition are excellent, and the dye composition can be widely used in coloring of cellulose fibers, polyamide fibers, protein fibers, blended textiles and the like. The dye composition has an unexpected coloring effect during union dyeing of brocade/cotton and brocade/viscose blended fabrics and interlacing fabrics by means of the one-bath and two-step method. Please see the formulas in the description.

The invention belongs to the technical field of polyester dyeing and discloses a dyeing method for improving disperse dye color fastness of polyester fabrics. The dyeing method includes steps: (1) polyester fiber pretreatment; (2) dyeing; (3) dyeing aftertreatment. The polyester fabrics dyed according to the dyeing method are high in dyeing depth and dye utilization rate, the dyed fabrics are excellent in color fastness, dyeing effects of different primary color dyestuffs are equalized, and popularization and application are benefited.

The invention discloses an aubergine liquid disperse dye as well as a preparation method and application of the dye. The aubergine liquid disperse dye is prepared from 1-amino-4-hydroxy-9,10 anthraquinone and CNF, 1815, alkali, ethanol, sodium polyacrylate, water soluble polyester and water soluble polyether; by adding water soluble polyester and polyether as well as sodium polyacrylate, an aubergine dyeing product is obtained for the first time, thus solving the problem that aubergine needs to be formed by color matching of the prior art, and widening the hue of 1-amino-4-hydroxy-9,10 anthraquinone dye.

The invention relates to a preparation method of knitted Roman cloth. The preparation method comprises the following steps: weaving by taking an all-cotton strong twist 40s combed cotton yarn combinedwith a 2075 polyester coated ammonia-coated wire as a raw material; then scutching, pre-streaming, pre-setting, scouring and bleaching, enzyme-washing, dyeing, after-finishing, drying, setting and forming to obtain the knitted Roman cloth. The preparation method provided by the invention has the benefits that through the reasonable selection on the twist degree and the twist direction of the yarn, the polyester coated ammonia-coated wire is combined; the knitted Roman cloth produced by adopting a suitable dyeing and finishing process is suitable in gram weight, elastic in cloth face and delicate, thereby being a material for making high fashions.

A nozzle assembly (10) for a jet fabric dyeing machine (1) comprises a tubular nozzle member through which fabric travels, the nozzle member defined by four side walls (26) and having a rectangular cross-section, and a nozzle gap (24) in a side wall (26A) of the nozzle member through which a jet of fluid can be applied to fabric in the nozzle member to propel the fabric along a travel path (T). An entry end (29) of the nozzle member has a decreasing cross-section to funnel fabric into the nozzle member, and an exit end (30) of the nozzle member has a rectangular guide tube (3) of expanding cross-section terminating in a fan-shaped trough (32). A fluid diverter (25, 27) intercepts part of the fluid jet and delivers it to a different side of the fabric.

The invention provides a hair dyeing box. The hair dyeing box comprises an upper cover, a lower cover, card wires and leather wings, wherein the upper cover and the lower cover are connected through a rotation shaft; notches for accommodating hairs are formed on the two sides of the upper cover and the two sides of the lower cover; the leather wings are adhered to a notch on one side; when the upper cover and the lower cover are folded, the leather wings shield the notches; the card wires are arranged on the inner surface of the upper cover and are densely distributed; and a cavity is reserved in the middle of the distributed surface. When the hair dyeing box is used for dyeing the hairs, extremely uniform dyeing effect can be achieved on the promise of saving a large number of hair dyes; head skin can be protected; and healthy hair dyeing is realized.

The invention discloses a dyeing and finishing method for an acetate velvet fabric. The method comprises the following steps: inspecting the fabric, conducting heat setting on the fabric, shearing thefabric, pre-shrinking the fabric, putting the fabric on a star frame, refining the fabric, washing the refined fabric for the first time, dyeing the fabric, washing the dyed fabric for the second time, and finishing after dyeing. Through adoption of the dyeing and finishing method, the dyeing rate of the fabric is consistent, the flatness is high, the phenomena of flower gray and dyeing defect are avoided, the dyeing effect of guaranteeing the dye fastness is achieved, the dyeing and finishing method is simple, the process and the dye are simple and easy to control, and green environmental-friendly dyeing and finishing are realized.

Paint for resin micro-ball of artificial pearl and its coating method are disclosed. The paint consists of celluloid, acetic ether, banana oil, camphor and pigment. The procedure is carried out by surface treating for resin micro-ball by surface curing agent and coating for at least twice. It has short dyeing and drying time, clean surface and good luster,