56results about How to "Pure shade" patented technology

The invention provides a disperse dye composition suitable for basic dyeing, mainly comprising the following raw materials in percentage by weight: 40-95 percent of one or a plurality of blue dyeing components A with a structural formula (I), 1-25 percent of one or a plurality of red dyeing components B with a structural formula (II) and 4-50 percent of one or a plurality of orange dyeing components C with a structural formula (III). The disperse dye composition has a wide dependency range of pH values, and can dye in a pH value ranging from 4.0 to 10; dyed and woven fabrics with predominant color-fastness performance, such as full hues, washing fastness, and the like, can be obtained.

The invention provides a low-temperature dyeing process of a fiber fabric. The low-temperature dyeing process comprises the processes of pretreatment, pre-sizing, dyeing, reduction clearing, fixing, softening treatment, drying, sizing, calendaring and rolling. In the dyeing process, the highest temperature does not exceed 100 DEG C, mild dyeing is carried out by using a gradual warming method and pH value regulation is carried out through a buffer solution, so that a proper acid environment required during the dyeing is satisfied and the dyeing effect is excellent; during the dyeing, a leveling agent is added to ensure that the dyeing is uniform; anhydrous sodium sulphate is added to postpone the dyeing process of the pigment and the temperature rises slowly at the same time, so that the uniform dyeing is ensured; a smoothing agent is added to prevent the scratching and local fibrillation; a penetrant and a diffusant are added to ensure that the penetration and the diffusion of the dyeing are relatively good; by means of the strict control in the aspects of temperature, acid, auxiliaries, time and the like, the low-temperature dyeing process of the fiber fabric has the advantages that the dyeing firmness is high, the dyeing is uniform, the dyeing stability is good and the effect is excellent at low temperature.

The invention provides a staining method for aramid fiber. The staining method comprises the steps of preprocessing, preshaping, staining, reduction clearing, color fixing, soft processing, drying, shaping, calendaring and rolling. According to the staining method, DEET is added in to serve as a dye carrier, and the staining effect and efficiency are improved; meanwhile, substitute alkali is adopted to replace a conventional soda substance, and not only is the usage amount decreased, but also the color fixing effect is enhanced to enable the washability of the aramid fiber is further enhanced; the reduction clearing and color fixing processes are added, and therefore the staining fastness is good; green and environmental-friendly non-formaldehyde TCD-R is adopted in the color fixing process, the fiber is dried step by step after color fixing, and therefore the firmness of the fiber is greatly improved; the soft processing process is added, the color fastness and softness of fabric are improved, the roughness of the fabric is reduced, and therefore the fabric is fluffy and rich in elasticity.

The invention discloses a multifunctional high-temperature oil removing levelling agent, which specifically contains the following raw materials by weight: 225-275 parts of polyethylene glycol, 90-110 parts of oleic acid, 0.9-1.1 parts of hypophosphorous acid, 2.7-3.3 parts of sulfuric acid, 63-77 parts of fatty alcohol-polyoxyethylene ether and 18-22 parts of rare earth. The sulfuric acid and the phosphorous acid serve as catalysts to enable mixed polyethylene glycol and oleic acid to perform esterification to produce corresponding esterified substance with high-efficiency decontamination and oil removing effects. The esterified substance, an appropriate amount of the fatty alcohol-polyoxyethylene ether and the rare earth are mixed in a compound mode. Principally by means of assistant-dyeing property of the rare earth, a compound agent having the functions of levelling property, dispersity, decoloration, synchronous dyeing property and the like apart from the oil removing function isobtained. Obtained fabrics have the advantages of being pure and normal in color tone, full, good in sense of touch and the like. The multifunctional high-temperature oil removing levelling agent increases first-rate product rate of dyeing machine fabrics, enables oil removing and level dyeing to be performed in the same bath, greatly shortens technological process, lowers production cost, and achieves the beneficial effect of energy saving and emission reduction.

The invention relates to bleaching water for preventing elastic jeans from loss of elasticity by washing and application of the bleaching water. The bleaching water is prepared from the following components in parts by weight: 30-40 parts of a polysulfanilamide derivative, 1-5 parts of a monoamine and polyamine mixture, 0.1-1 part of EDTA tetrasodium salt and 5-15 parts of a polyamino acid derivative. The application specifically comprises the following steps: (1) desizing the bleaching water; (2) enzymatic washing the bleaching water by cellulose; and (3) chlorine bleaching the bleaching water. Compared with the prior art, the bleaching water provided by the invention has the obvious advantages of preventing spandex from loss of elasticity and the like.

The invention discloses a nylon-terylene pseudo-stripe cloth, warp yarns adopt A nylon, weft yarns adopt B terylene, and a five-heddle satin texture is adopted; wherein the A nylon is super bright circular-hole yarn with 30 denier of fiber number, the B terylene has 150 denier of fiber number and is formed by 48 fibers which are super bright cation yarns; in the dyeing and finishing process, the color of nylon circular-hole yarn A and the color of the cation yarn B are not stuck mutually, and the colored light thereof is pure; the invention solves the problem in the prior art and provides the nylon-terylene pseudo-stripe cloth which has leather-feeling cloth surface and artistic visual sense.

The invention relates to a high-temperature leveling agent and a production process thereof, belonging to the technical field of fabric dyeing and finishing. The cotton leveling agent is characterized by being prepared from raw materials in a special proportion through adopting the following steps of: firstly, esterifying glycerol ether and oleic acid under the catalysis of sulphuric acid to generate olein; and then, compounding the olein and secondary alkane sulfonate and mixing by using isopropanol as a solvent to obtain the high-temperature leveling agent. The product provided by the invention has favorable leveling property, combustion retardance, dyeing transfer, dispersibility, achromicity and synchronous dyeing; the processed fabrics have pure color and luster, fullness and good hand feeling, ensure the top-quality product rate of the dyed fabrics, lighten the processing load of effluents, decrease the production cost and have favorable economic benefits and social benefits.

The invention provides a direct dyeing process for a chemical fiber. The direct dyeing process for the chemical fiber comprises the steps of pretreatment, pre-shaping, modification treatment, dyeing, soaping, color fixing, after-treatment, drying, sizing, calendaring and rolling. According to the direct dyeing process for the chemical fiber, the modification treatment is added, so that performances of a chemical fabric are subjected to the modification treatment basically, the dyeing degree of the fabric is increased, and the difficulty of a subsequent dyeing step is reduced; during dyeing, the mass utilization of inorganic salt is avoided; furthermore, substitute alkali is used for replacing a conventional sodium carbonate substance, so that the consumption is reduced, a color fixation effect is also improved, and the washing fastness of the chemical fiber is further improved; soaping and color fixing processes are added, so that the dyeing fastness is good; environment-protection formaldehyde-free TCD-R is utilized in the color fixing process, and color-fixed fibers are gradually dried, so that the firmness of the fibers is greatly improved; the post-treatment process is added, so that the color fastness and the flexibility of the fabric are improved, the roughness of the fabric is reduced, and the fabric is fluffy and has high resilience.

The invention discloses a dyeing process method for loose fiber of cotton, sliver, and cotton roll. It includes changes the traditional process of spinning-before-dyeing into the one of dyeing-before-spinning. The method uses azo dyes to dye the loose cotton, the dyed loose cotton is colorful cotton with five colors, the color includes red, yellow, brown and black. It can be produced without special appliances, especially applies to small industry, the color difference of the product is small, the product is soft, pluffy, it solves the problem of color floating, fading, contaminating, cotton joint, bad color firm rate. It reduces yarn back, high speed cone winding process.

The invention discloses an aniline black pigment producing method. The aniline black pigment producing method comprises the following steps of: taking aniline as a raw material, and adding hydrochloric acid to synthesize an aniline hydrochloride solution; adding a hydroxyl copper phosphate catalyst, and dripping hydrogen peroxide; and after reaction, filtering, cleaning, drying and grinding to obtain aniline black pigment. In the aniline black pigment producing method, dichromate is not taken as an oxidant, thus avoiding chromium pollution; the hydroxyl copper phosphate catalyst coordinates with the hydrogen peroxide oxidant, thus improving the yield of the aniline black pigment; the produced obtained aniline black pigment is pure in color and luster and is blue phase black; and the production is simple and convenient.

The invention discloses a dyeing process for treasure island suede microfiber leather. The dyeing process comprises the following steps of a base cloth processing sub-process and a dyeing sub-process, wherein in the base cloth processing sub-process, the steps of dipping, solidifying, washing, dyeing, coating and surface grinding are utilized to obtain the treasure island suede microfiber leather, and the dyeing sub-process is carried out at a high temperature; in the dyeing sub-process, the treasure island suede microfiber leather is dyed at 26-28 DEG C for initial dyeing, then the temperature is increased to 57-63 DEG C at an increase speed of 1 DEG C/ min and the treasure island suede microfiber leather is kept at the temperature of 57-63 DEG C for 13-14 minutes; the temperature is increased to 82-86 DEG C at an increase speed of 1 DEG C/ min and the treasure island suede microfiber leather is kept at the temperature of 82-86 DEG C for 14-16 minutes; the temperature is increased to 111-113 DEG C at an increase speed of 0.6-1 DEG C/ min and the treasure island suede microfiber leather is kept at the temperature of 111-113 DEG C for 18-21 minutes; finally, the temperature is decreased to 68-71 DEG C at the speed of 1.5-1.8 DEG C/ min. The invention also discloses a wastewater recycle technique in the dyeing process of the treasure island suede microfiber leather, and according to the dyeing process for the treasure island suede microfiber leather and the wastewater recycle technique in the dyeing process of the treasure island suede microfiber leather, the dyeing time can be shortened by controlling the dyeing temperature, the time and time periods of temperature rising and temperature decreasing; for the dyeing process, the dyeing rate and color fastness of the dyed base cloth are good, dyeing is balanced evenly, the color of the dyed base cloth is deep and dense, and the color brightness is pure; finished products have the advantages of both a microfiber material and a leather material, and recovered DMF from the wastewater generated in the dyeing process can be reused so as to reduce damage to the environment and surrounding workers; the dyeing process for the treasure island suede microfiber leather and the wastewater recycle technique in the dyeing process of the treasure island suede microfiber leather are environment-friendly and can save energy.

A disclosed processing technology for improving the yarn shrinkage rate of microcapsule fragrant fabric tapes comprises the following steps: yarn fixing, loosening, dyeing, post-treatment and softening processing. By using a dry blowing machine to perform dry blowing on yarns before dyeing, yarns are fully fixed and the shrinkage rate of the yarns is fully improved; and the dyeing process successively comprises multiple times of water washing at different temperature, so that dyeing is uniform, the color light is pure and the color is uniform; and a microcapsule fragrant finishing agent and an environmental-environment acrylic softening adhesive are added in the dyeing process.

The invention discloses a dyeing and finishing process for Chinese velvet. The dyeing and finishing process combines the steps of hot washing, acid washing, dyeing and water washing and a process flow is shortened, so that the water amount in a production process is reduced and the emission of sewage is reduced, and furthermore, energy saving and emission reduction are realized. Meanwhile, a fabric dyed and finished by the dyeing and finishing process has good dyeing yield and pure colored light.

The invention discloses a flax-viscose plain cloth. The warps and wefts of the flax-viscose plain cloth are composed of yarns A and yarns B, wherein 30 threads of the yarns A and the yarns B are twisted into two strands, each strand comprises 60% of the yarns A and 40% of the yarns B, the yarns A are flax and the yarns B are viscose. According to the invention, the defects of the prior art are solved, and the flax-viscose plain cloth provided by the invention has the advantages of purer tone and fine and smooth cloth surface.

The present invention relates to aromatic hydrocarbon solvent, and is especially oxidationproof single-component aromatic hydrocarbon solvent used in synthesizing copper phthalocyanine. It features the boiling point of 200-220 deg.c, density of 0.86-0.89 and refractivity of 1.5060-1.5080, and has the advantages of being environment friendly and non-toxic, high yield and high purity of copper phthalocyanine product and high oxidation resistance. The solvent may be used in preparing C.I. blue pigment with high strength and pure color.