38results about How to "Excellent color fastness to washing" patented technology

The invention belongs to the technical field of anhydrous dyeing of textile and particularly relates to a dyeing technology of textile in a supercritical CO2 fluid with three-primary color disperse dye. At least two of the three-primary color dye including C.I. disperse red 140, C.I. disperse yellow and C.I. disperse blue 56 are mixed in any ratio. All the disperse dyes are well compatible, are suitable to be used for supercritical CO2 fluid dying and can be combined to dye textile in various colors. The dyeing system of the composition comprises a CO2 steel cylinder, a booster pump, a dye kettle, a dyeing kettle and a separation kettle which are sequentially connected. A circulating pump is also arranged between a fluid outlet of the dyeing kettle and a fluid inlet of the dye kettle. Online detection is adopted in the dyeing process of the supercritical CO2 fluid, the proportion change of the three-primary color dye can be detected in real time, and competitive dyeing phenomenon can be avoided.

The invention belongs to the technical field of water-free dyeing of textiles and particularly relates to a technique for dyeing textiles through a three-primary-color natural dye in supercritical CO2fluid. The three-primary-color natural dye is prepared by mixing at least two of radix salviae miltiorrhizae red pigments, turmeric yellow pigments and gardenia blue pigments according to an arbitrary ratio. All the natural dyes are high in compatibility, are applicable to supercritical CO2 fluid dyeing, and can be combined for dyeing the textiles with various colors. A dyeing system comprises acarbon dioxide steel cylinder, a boosting pump, a dye kettle, a dyeing kettle and a separation kettle which are successively connected with each other; a circulation pump is arranged between a fluid outlet of the dyeing kettle and a fluid inlet of the dye kettle; on-line detection is used in the dyeing process of the supercritical CO2 fluid; the ratio change of the three-primary-color dye can be detected in real time; the phenomenon of competitive dyeing is avoided.

The invention relates to the field of textile dyeing and finishing treatment, and concretely relates to a terylene fabric dispersive dyeing non-reduction cleaning technology. A high alkali-resistant dispersive dye is used for dyeing the terylene fabric, an alkaline solution is used for dyeing the terylene fabric, and soaping and washing can be carried out. The terylene fabric dispersive dyeing non-reduction cleaning technology does not require a reducing agent for reduction cleaning on dyeing terylene fabric, and can effectively remove floated color and color spot on the surface of the fabric,the dyed fabric can obtain the stable colored light and excellent washable color fastness, the technology is simplified and is more environmentally friendly, and reduces the enterprise cost, and increases the enterprise benefit.

The invention discloses a dyeing method for blended fabric. The method comprises the steps of 1) adding magnesium sulfate, diglycolamidic acid, carboxymethylcellulose, HACC and vegetable dyes in deionized water in sequence, mixing even and heating to 55oC; 2) Adding tetrasodium glutamate diacetate, alkyl sodium sulfonate, triethylenetetramine, mica powder in sequence, and mixing even, heating to 65oC; 3) Soaking the fabric in the dye vat for 25min; 4) Drying the soaked fabric at 80oC; 5) Soaking the dried fabric in clean water and rinsing for 25min; and 6) Getting out the rinsed fabric and make it dry naturally. The dyed fabric is excellent in color fastness and good in dyeing uniformity, free of color tone.

The invention discloses a dyeing method for sofa fabrics. The dyeing method includes the steps: 1) sequentially adding dimethyl formamide, N-methyl diethanol amine, sodium hexametaphosphate, magnesium sulfate and vegetable dyes into a dye vat, sequentially adding deionized water, uniformly mixing, and heating to 55 DEG C; 2) sequentially adding iminodiacetic acid, isomeric fatty alcohol polyoxyethylene ether phosphate, chitosan quaternary ammonium salt and sodium ethylene diamine tetraacetate, continuing to mix until sufficiently and uniformly blending is achieved, and heating to 65 DEG C; 3) soaking the fabrics in the dye vat for 35 minutes; 4) drying the soaked fabrics at the temperature of 80 DEG C; 5) soaking the dried fabrics in clear water to wash for 35 minutes; 6) taking out the washed fabrics to naturally dry. The fabrics dyed by the method have excellent color fastness and are good in dyeing uniformity and free from dyeing defects.

The invention discloses a dye composition and a disperse dye and its preparation method and application. The dye composition comprises a compound as shown in the formula (1) and at least one compound as shown in the formula (2) and formula (3). The disperse dye contains the disperse dye composition and an auxiliary material. The preparation method of the disperse dye comprises the following steps: mixing various dye components, and carrying out particlization treatment in the presence of the auxiliary material by a sand mill or a grinding machine; or respectively carrying out particlization treatment on the various dye components in the presence of the auxiliary agent by a sand mill or a grinding machine, and mixing. The prepared disperse dye is suitable for dyeing and printing of fabric, has good compatibility, is low-cost, has little pollution and is a disperse dye with good cost performance. In the formula (2), X1 is Br or Cl, and R1 is H or C2H5. In the formula (3), X2 is Cl or Br.

The invention discloses a dyeing method of spandex fabric, comprising the following steps: 1) successively adding dibutyl phthalate, diisocyanate, polypropylene glycol, butyl peroxybenzoate and vegetable dye into 1 part of deionized water in a dye vat, uniformly stirring, and heating to 55 DEG C; 2) successively pouring glycine, diisooclyl maleate sulfonate, acrylic acid ester and tetrasodium glutamate diacetate, continuously stirring until the materials are fully and uniformly mixed, and heating to 65 DEG C; 3) immersing the fabric in the dye vat for 35 min; 4) drying the immersed fabric at 80 DEG C; 5) rinsing the dried fabric in clear water for 35 DEG C; and 6) taking the rinsed fabric out of the clear water and naturally airing. The dyed fabric has excellent color fastness and good dyeing uniformity and has no dyeing defect.

The invention discloses a coupling component containing a phthalimide structure, and a preparation method and application of the coupling component. The structural formula of the coupling component isas shown in a formula (7). The prepared coupling component containing the phthalimide structure belongs to novel coupling components containing phthalimide; the phthalimide structure is introduced through connection with a substituent group on a phthalimide benzene ring, and the nitrogen atoms of imide can be connected to different substituent groups R1, so a dye is allowed to have different application performances and excellent color fastness to washing. Meanwhile, only an alkali washing process is used after a polyester fabric is dyed, so carcinogenic aromatic amine generated by decomposing azo groups under the condition of reduction cleaning of sodium hydrosulfite is prevented from being released into sewage, the treatment burden of washing sewage is reduced, and high environmental protection performance is achieved.

The invention discloses a dyeing method for PV fabric. The method comprises the steps of 1) Adding epichlorohydrin, ferrous sulfate, sodium hexametaphosphate, dimethylamine and vegetable dyes in sequence in deionized water, then mixing even and heating to 55oC; 2) Adding poly(acrylic acid-co-maleic acid), isomeric 13 - dodecanol polyoxyethylene ether phosphate and ODPA in sequence and continue to mix to even mixing, and heat to 65oC; 3) Soaking fabric in the dye vat for 30min; 4) Drying the soaked fabric at 80oC; 5) Soaking the dried fabric in clean water and rinsing for 30min; 6) Getting out the rinsed fabric and make it dry naturally. The dyed fabric is excellent in color fastness and good in dyeing uniformity, free of color tone.

The invention provides a dyeing process capable of increasing fixation rate of textiles. The dyeing process includes A, pre-dyeing treatment, B, dyeing treatment and C, post-dyeing treatment. The dyeing process has the advantages that the one-bath dyeing method integrates a cotton dyeing process with a terylene dyeing process; according to the one-bath two-step method, cotton is dyed at a low temperature, and terylene is dyed at a high temperature, so that feasibility of the one-bath dyeing method is improved, technological steps are simplified greatly, consumption of energy such as water andsteam is reduced, technological consumed time is shortened, and energy conservation, emission reduction and production efficiency improvement are realized; proper components and ratios of dyestuff andaids are selected according to the one-bath dyeing method, optimal technological steps and parameters (time and temperature) are combined, and accordingly, the dyeing effect of fabrics is improved greatly; polyester-cotton fabrics dyed and finished by the one-bath dyeing method have high color fastness to washing, insolation, friction, water and perspiration; dyeing uniformity is achieved, and dyeing defects are avoided.

The invention belongs to the technical field of fine chemical engineering, and particularly relates to an environment-friendly high-fastness disperse navy blue dye composition and a preparation method thereof. The dye composition comprises, by weight, 20-42 parts of a component A, 29-51 parts of a component B, 46-65 parts of a component C, and 70-210 parts of a filling aid. The dye composition does not contain forbidden aromatic amines, sensitization and carcinogenic dyes, chlorophenol, organochlorine carriers, quinoline and other components harmful to human health, meets the OEKO-TEX Standard 100 indexes of textiles, has high environmental protection property, improves the compatibility of the dyes and improves the exhaustion rate and utilization rate of the dyes through compounding and addition of the dyes with different structures, meanwhile, the dyeing or printing soaping residual liquid is clear, the treatment difficulty of printing and dyeing wastewater is reduced, and the dye is good in lifting power and excellent in water soaking, sublimation and soaping color fastness.

The invention discloses a quilt cover fabric dyeing method. The method comprises the steps of: 1) adding calcium sulfate, aspartic acid, sodium polyacrylate, titanium dioxide and vegetable dyes into deionized water in a dye vat in order, stirring the substances evenly, and performing heating to 55DEG C; 2) then adding beta-alanine, secondary alcohol ethoxylate, sodium silicate and ferrous sulfate, further conducting stirring until the substances are fully and evenly mixed, and performing heating to 65DEG C; 3) soaking the fabric in the dye vat for 35min; 4) drying the well soaked fabric at 80DEG C; 5) immersing the dried fabric in clear water and performing rinsing for 35min; and 6) taking out the rinsed fabric and conducting natural airing. According to the method provided by the invention, the dyed fabric has excellent color fastness and good dyeing uniformity, and is free of dyeing defect.

The invention discloses a wool fabric dyeing method, which comprises: 1) sequentially pouring hexamethoxymethylmelamine, maleic acid, polyacrylic acid, dinitroso pentamethylene tetramine and a plant dye into deionized water in a dyeing vat, uniformly stirring, and heating to a temperature of 55 DEG C; 2) sequentially adding iminodipropionic acid, tributyl phosphate, hexanediamine and methacrylic acid diethyl amino ethyl ester, continuously stirring until completely and uniformly mixing, and heating to a temperature of 65 DEG C; 3) soaking a fabric for 25 min in the dying vat; 4) drying the soaked fabric at a temperature of 80 DEG C; 5) immersing the dried fabric in clear water, and rinsing for 25 min; and 6) taking out the rinsed fabric, and carrying out natural air drying. According to the present invention, the dyed fabric has advantages of excellent color fastness, good dyeing uniformity, and no dyeing spot.

The invention discloses a dyeing method of bar-shaped plush fabric. The dyeing method comprises the following steps: 1) successively adding 2-(diethylamino)ethyl methacrylate, poly(aspartic acid), sodium tripolyphosphate, zinc stearate and vegetable dye into deionized water in a dye vat, uniformly stirring and heating to 55 DEG C; 2) successively pouring nitrilotriacetic acid, aliphatic isoalcohol phosphate, dicyandiamide and chitosan, continuously stirring until the materials are fully and uniformly mixed, and heating to 65 DEG C; 3) immersing fabric in the dye vat for 35 min; 4) drying the immersed fabric at 80 DEG C; 5) immersing the dried fabric in clear water and rinsing for 35 min; and 6) taking out the rinsed fabric and naturally airing. The dyed fabric has excellent color fastness and good dyeing uniformity, but has no dyeing defect.