35results about How to "High dye utilization rate" patented technology

The invention discloses a manufacturing method of milk protein fiber or filament or blended yarn dyeing and yarn-colored product, which is characterized by the following: changing coiling density of yarn; controlling heating temperature; adopting segmented contraction in the cylinder yarn dyeing course; adding self-producing milk protein fiber dyeing specific adjuvant; utilizing polyacrylonitile or polyvinyl acetate alcohol as carrier realize active dyeing technology of milk protein fiber; solving the difficulties of flower color, weak color and bad fastening degree problem to produce excellent washing shrinkage and stable size yarn-dyed product through weaving, shrinking and softening and final disposal.

The invention relates to a high-quality printing and dyeing device for textile fabric. The device comprises a dyestuff box, the left side of the dyestuff box is provided with an extrusion cavity, thebottom side of the dyestuff box is provided with a flow guide channel communicated with the extrusion cavity, and the right side of the dyestuff box is provided with a spray-painting mechanism communicated with the flow guide channel; the extrusion cavity is provided with an extrusion mechanism, which is used for extruding dye liquor in the extrusion cavity to enable the dye liquor to be sprayed out through the spray-painting mechanism; a grinding mechanism is arranged at a position which is close to a bottom side in the dyestuff box, and comprises a lower grinding component as well as an upper grinding component and a driving component which are arranged above the lower grinding component, the extrusion mechanism downwards drives the upper grinding component to move downwards to the lowergrinding component, the driving component drives the upper grinding component to move left and right to grind coarse particle dyestuff on the lower grinding component; the right side of the dyestuffbox is further provided with a fabric rolling mechanism, and the extrusion mechanism drives the fabric rolling mechanism to roll the fabric; the high-quality printing and dyeing device is used for solving the problems that in the dyeing process, the dyestuff chroma homogeneity is poor, the dyestuff use ratio is not high, the dyeing effect is not good and impurities are easily adhered to the fabricsurface.

The present invention relates to a modification bath dyeing technique by using active dyes. Said technique can dye fibre, yarn and fabrics, and includes the following processes: under the alkaline condition utilizing active dyes to dye, fix colour and regulate pH value, and under the acidic condition utilizing acidic dyes to dye, heat-up continuously dye and water-wash, etc. The adoption of said method is applicable to new fibre variety, for example, soybean protein/PVA polyblend fibre can be one-bath dyed by using said method.

The invention provides a production process for cellulose fiber interwoven or cellulose fiber blended fabric. The production process includes the steps of selection of raw materials, spinning, sizing, weaving, dyeing, final treatment and the like; A100-type cellulose fiber is selected as the raw materials, fibrillation is assured not to occur to the cellulose fiber, the obtained fabric is ensured not to fade easily and generate white hairs easily, yarn hairness can be effectively controlled by adopting a Siro spinning yarn mode, the hairness 3mm above the surface of the yarn can be reduced by 80% as compared with a traditional ring spinning method, a sizing agent without PVA (polyvinyl acetate) is used for sizing, possibility that the cellulose fiber interwoven or cellulose fiber blended yarn is split by swelling friction under the damp condition can be reduced, weaving difficulties brought by the cellulose fiber interwoven or cellulose fiber blended yarn and other hairness can be further avoided, friction of the yarn and a machine during dyeing can be reduced by controlling warp and weft-density difference of gray fabric, and fibrillation risk of the cellulose fiber in production is reduced.

The invention relates to a high-efficiency textile fabric printing and dyeing treatment system and process. The process involves a dye box, wherein a first spray dyeing mechanism and a second spray dyeing mechanism are arranged in the dye box, and each of the first spray dyeing mechanism and second spray dyeing mechanism comprises a filtrate assembly fixed on the inner wall of the dye box, a squeezing and grinding assembly arranged in the corresponding filtrate assembly and a spray dyeing assembly arranged at the upper end of the corresponding filtrate assembly; a driving mechanism is arrangedbetween the first spray dyeing mechanism and the second spray dyeing mechanism and drives the two squeezing and grinding assemblies to rise and fall alternately, the filtrate assemblies extract a dyeliquor at the bottom of the dye box when the squeezing and grinding assemblies move upward, the dye liquor in the filtrate assemblies is squeezed to be filtered when the squeezing and grinding assemblies move downward so that the dye liquor is sprayed from a front spray dyeing assembly and a rear spray dyeing assembly to dye a fabric, and the squeezing and grinding assemblies move downward continuously after dye liquor squeezing and spray dyeing are completed to grind the coarse-particle dye remaining in the filtrate assemblies. The high-efficiency textile fabric printing and dyeing treatmentsystem and process solve the problems that the fabric dyeing mode is single, the dye liquor is stratified, the dyeing effect is poor, dyeing is nonuniform, and the dye utilization rate is low.

The invention discloses a black liquid dispersing dye with characteristics of high color fastness and low brightness, and a preparation method thereof, wherein the raw dye of a black dye compound, an anionic surfactant, a nonionic surfactant, a polyacrylate copolymer, amino silicone oil, benzisothiazolinone and water are mixed, and the obtained mixture is grinded to prepare the black liquid dispersing dye. According to the present invention, the prepared black liquid dispersing dye can improve the dyeing depth of the printed fabric, reduce the loose color of the dye, improve the color fastness of the dyed product, save the effective use amount of the dye when the dyeing product having the same brightness is achieved, significantly reduce the reduction washing and water washing tasks after the printing, save the water resource and the energy consumption, and reduce the wastewater treatment cost.

The invention relates to phthalocyanine-azo double-chromophore activated dye having a high fixation rate and a preparing method and application thereof. The method includes copper phthalocyanine chlorosulfonation to prepare a phthalocyanine turquoise blue base, a first time of condensation, a second time of condensation, diazotization and a coupling reaction to obtain the activated dye having a high fixation rate. The dye is suitable for pattern printing for cotton, artificial cotton, linen, regenerated fibers and textiles thereof, and has a high fixation rate, bright color, excellent improving performance, good washable fastness, good color fastness to rubbing and a good application prospect.

The invention discloses a nylon 6 fishing net dyeing process. The nylon 6 fishing net dyeing process comprises the following steps: (1) preprocessing, (2) dyeing and (3) color fixing. The problems of uneven dyeing, flower dyeing, aberration and color defect which are easily caused in dyeing of nylon 6 fishing nets can be solved. The utilization rate of dyestuff and the color fastness are improved, dyeing processing risks are reduced, the semi-dyeing time of the dyestuff can be greatly reduced, the dyeing speed is increased, a certain amount of cactus extracting solution is added during dyeing, a dye liquor treatment environment is gentle, damage to the nylon 6 fishing net is small, the use performance of the nylon 6 fishing net is not affected, and meanwhile, the dyeing speed is not reduced.

The invention aims at providing a printing paste for silk fabric and a printing technology with the printing paste. Dye printing evenness can be improved. The printing paste comprises, by weight, 20-100 parts of capsule cores, 1-20 parts of bonding agent and 5-30 parts of capsule films; the capsule cores comprise, by weight, 1%-10% of dye, 1%-5% of urea and 30%-60% of paste materials; the capsule films comprise, by weight, 5%-20% of vinyl acetal polymers and 80%-95% of polyether and/or polyolefins copolymers. The printing technology with the printing paste includes the following steps that S1, the silk fabric is pretreated; S2, the printing paste is prepared with the method; S3, under the condition that pH is equal to 6.0 to 6.5, the printing paste prepared in the S2 is used for printing the silk fabric pretreated in the S1; S4, the printed silk fabric obtained in the S3 is dried, aged, cleaned and finished.

The invention relates to a high quality printing and dyeing mechanism of textile fabric, which comprises a dye box. A spray dyeing mechanism is arranged in the dye box, wherein the spray dyeing mechanism comprises a filter assembly, a grinding assembly arranged in the filter assembly and a spray dyeing assembly arranged on the filter assembly; the grinding assembly moves upward so that the filterassembly extracts the dye solution at the bottom of the dye box, and moves downward so that the filter assembly compresses the dye solution in the filter assembly and filters the dye solution. The filtered dye solution sprays out through the spray dyeing assembly. After the solution is sprayed and dyed, the grinding assembly continues to move downwards to grind the coarse particle dye remaining inthe filter assembly. A plurality of cloth guide rollers are arranged in the dye box, and the fabric is transmitted from the dye box from the bottom to the top under the guidance of the cloth guide rollers. The spray dyeing assembly comprises a duct a and a spray dyeing tube a and a spray dyeing tube b. The spray dyeing tube a and the spray dyeing tube b are respectively arranged on both sides ofthe fabric; the high quality printing and dyeing mechanism of textile fabric solves the problems of poor dyeing effect, uneven dyes, easy deposition of dyes at the bottom and staining impurities on the surface of fabric after dyeing.

The invention discloses a cation modified cotton fiber knitted fabric. The fabric adopts cation modified cotton yarns, refined cotton and spandex as raw materials; salt-free and alkali-free dyeing and finishing process treatment of the fabric, which is prepared from yarns through a knitting process, is conducted; and according to the dyeing process of the cation modified cotton fabric, salt-alkali-free auxiliary agents do not need to be added, the whole dyeing time is 5 hours, the dyeing time is 3 hours faster than that of a common unmodified cotton knitted fabric, the dyeing fastness is good, and the requirement of wearability of the fabric is met.

Provided are an environmental protection-type liquid bromo indigo dye composite addition auxiliary agent and a preparation method therefor. The addition auxiliary agent comprises the following ingredients, by weight, 10-40% of dispersants, 5-20% of polycarboxylate derivatives, 2-10% of chelating agents, 5-20% of anionic surfactants, 2-10% of nonionic surfactants, 0.05-0.2% of antifoaming agents, and 30-80% of deionized water. The environmental protection-type composite addition auxiliary agent of liquid bromo indigo dyes can improve storage dispersion stability of liquid bromo indigo dyes remarkably, and raises the dye-uptake rate and dye utilization rate of bromo indigo dyes during denim dyeing, and the amount of dyes can be decreased when the same dyeing degree is achieved.

The invention relates to the technical field of novel material research, development and preparation and discloses a dyeing accelerant capable of improving dyeing performance of cotton fabrics. The prepared dyeing accelerant is added into reactive dye diluent to realize dyeing treatment of the cotton fabrics and capable of reducing surface tension of wood in contact with dyes; the dyeing accelerant is high in chemical activity and capable of increasing the degree of freedom of active groups in dye molecules, reducing electrostatic repulsive force and promoting reactive dyes and cotton fabric fibers to form reaction covalent bonds; high leveling performance is achieved, dye hue can be kept, prominent light stability and heat stability are achieved after dyeing, color brightness is guaranteed, and excellent light fastness, fastness to wet rubbing and fastness to sunlight are achieved; besides, water resistance of dyes can be improved, and high fastness to washing and scrubbing is realized.