230 results about "Substantive dye" patented technology

The present invention provides a treatment composition comprising a hydrophobic dye and a second dye, selected from hydrolysed reactive dyes, acid dyes and direct dyes; and a surfactant.

The invention relates to a rare earth mordant dyeing method for kapok fibers and textiles thereof. The method comprises the following steps: pre-treating kapok textile so as to remove some waxy xubstances, impurities and the like on the surface of the kapok fiber and achieve certain whiteness; and then adding a complexing rare earth mordant into a dye bath of the pretreated kapok textile, and mordant dyeing the kapok textile. Compared with the prior art, according to the dyeing method of the invention, the dyeing of the kapok fibers and textiles thereof is not limited to direct dyes and can also be used for other anionic dyes such as reactive dyes and the like, and the problems of low rate of dye-uptake, poor level-dyeing property, poor deep-color dyeing effect, poor dyeing fastness and the like are overcome.

The invention, belonging to printing and dyeing area for silk cloth, relates to a dyestuff alkali-washing dyeing method for polyester mixed textile dispersedly and directly. Said method is that under the condition of 7<PH<9 alkali, direct and dispersal dye of alkali resistivity are use as dyeing for polyester textile. Under the lower alkali condition, polyester fibre after dyeing can avoid shortcoming of a mass of flaw generated by lixiviation of slurry, oils and other catabolite in acidic bath. It can conquer damnification of dyeing and fibre under the circumstance of high temperature, pressure and alkali. The invention can conserve energy, decrease cost and improve production efficiency.

Provided is a hair dye composition containing a dissociative direct dye (1):

(wherein Ar represents an aromatic group or heterocyclic aromatic group which may have a substituent, Ar′ represents an aromatic group which may be substituted by an alkyl group or an electron drawing group, or a specific heterocyclic aromatic group, and W represents an electron drawing group); or salt thereof.

The invention discloses a printing and dyeing wastewater treatment process which comprises the following steps: adding a filter aid into wastewater, flocculating the wastewater, filtering to remove suspended matters from the wastewater, and reserving small suspended matters with colors and dissolved matters; adding a reducing decolorizer into the wastewater subjected to primary filtration for treating dyeing wastewater of direct dyes, so that dye molecules in the wastewater form a reductive degradation product; enabling the wastewater containing the reductive degradation product to pass through an adsorption material for adsorbing the reductive degradation product or other materials in the wastewater to the solid surface due to the adsorption effect; pouring a non-water-soluble organic solvent into the wastewater subjected to adsorption, and vibrating the solvent and the wastewater together, wherein the water phase is colorless when two phases are separated, and the dyes are accumulated on the upper-layer organic phase; and pouring a certain quantity of clean water into the wastewater subjected to extraction for diluting the wastewater. The process has the advantages that the pH value of the wastewater does not need to be adjusted, the effect is good, and the cost is low.

Provided is a two-part oxidative hair dye composition having a first agent containing an alkali agent and an oxidation dye intermediate or a direct dye and a second agent containing an oxidizing agent, wherein at least one of the first and second agents contains both of Components (A) and (B):

• • (A) an iso-fatty acid or an anteiso-fatty acid having from 19 to 30 carbon atoms, or a salt thereof, and
  • (B) a quaternary cationic surfactant.

A soluble solid hair coloring article having zwitterionic direct dye and one or more soluble porous solids containing nonionic surfactant, cationic surfactant, or a mixture thereof, such that the one or more soluble porous solids have a density of from about 0.03 g/cm3 to about 0.15 g/cm3; and methods of applying the soluble solid hair coloring article to hair.

The invention relates to the field of leather dying, in particular to leather dye and a preparing method of the leather dye. The leather dye comprises, by weight, 10-90 parts of dye and 2-20 parts of bipolymer of acrylamide and acrylic acid. The dye is acid dye containing a sulfonic group or direct dye containing a sulfonic group. According to the leather dye, the bipolymer of the acrylamide and the acrylic acid is added to serve as a dye-fixing agent, so that the firmness of the dye is increased; compared with common leather dye without the dye-fixing agent, the firmness level of the leather dye under the circumstance of airing or dry shining or wet shining is remarkably improved; in addition, when the color of the leather dye reaches the same degree, the use amount of the leather dye can be reduced at least by 15% compared with the common leather dye without the dye-fixing agent, and thus the leather dye further has the effect of increasing the dark degree.

The invention relates to a digital stamping ink, method of dyestuff refining and method of digital stamping, wherein the digital stamping ink dyeing raw material is refined direct dyes comprising direct pigment yellow 5GL, direct sun-proof fluorescein 7GFF, direct pigment red F3B, direct pigment direct turquoise blue GL, direct pigment black G, or direct pigment black Ex. The process for refining direct dyes comprises, dissolving in organic solvent, filtering and rouging, removing organic solvent. The digital stamping process comprises the steps of, pretreating the textile materials, stamping using digital stamping machine, post-treating the textile materials.

The invention relates to a method for dyeing and/or printing textile material containing non-split and/or at least partially split micro-fibres and/or micro-filaments, composed of at least one polyamide component and optionally at least one additional polymer component. According to said method, the textile material is treated with formic acid and is dyed and/or printed using at least one dye, selected from the group containing anionic acidic dyes, metal complex dyes, reactive dyes, direct dyes and cationic dyes.

The invention discloses a method for preparing a sol dyeing solution and an application of the sol dyeing solution in dyeing of a textile, belonging to the spinning chemical technical field. The method directly adopts a dye or an active dye, a precursor, a coupling agent, a solvent, and a catalyst to prepare the sol dyeing solution. The dyeing by the method has simple technique, does not need the independent fixing agent to perform the fixing process, has small pollution and effectively increases the dyeing depth of the textile.

Described herein is a method of dyeing the hair. The method includes applying to the hair a hair color composition including one or more direct dye compounds and rinsing the hair with water. The one or more direct dye compounds each include a chromophore, one or two permanent cations, one to four incipient cations, and one or more hydrophobic moieties. The incipient cations are pendant to the core structure and are neutral. The one or more direct dye compounds enter the hair shaft after the hair color composition is applied to the hair. The hair color composition has a pH of from about 7 to about 11. The pH of the hair after rinsing is from about 3.5 to about 6. The rinsing of the hair causes one or more of the one to four incipient cations to change from neutral to positively charged inside of the hair shaft.

Composition comprising a hydrophobic dye, a particular organic and/or mineral alkaline agent, a particular compound (I) and a particular organic compound (II), and dyeing use thereof. The present invention relates to a dye composition comprising one or more hydrophobic direct dyes with a log P of greater than or equal to 2, one or more organic alkaline agents, and/or one or more mineral alkaline agents chosen from carbonates, hydrogen carbonates, sodium hydroxide and potassium hydroxide, and mixtures thereof, one or more compounds (I) comprising in their structure a sequence:

Described herein is a hair color composition for dyeing the hair. The hair color composition includes one or more direct dye compounds and one or more additional ingredients. The one or more direct dye compounds each include a chromophore, one or two permanent cations, and one to four incipient cations. The one to four incipient cations are pendant to the core structure and are neutral. The one or more direct dye compounds enter the hair shaft after the hair color composition is applied to the hair. The hair color composition has a pH of from about 7 to about 11.

The specification describes an agent for coloring keratinic fibers. The agent includes, in a cosmetically acceptable carrier, at least one oxidation dye precursor, a precursor of a nature-analogous dye, a substantive dye, or combinations thereof. The agent also includes a carrier base combination. The carrier base combination includes at least one fatty substance of formula (I), in which R and R′ in each case mutually independently denote a saturated or unsaturated C₆-C₂₂ alkyl chain; at least one nonionic surfactant of formula (II),R1-O-[G]_p(II) in which R1 denotes a saturated or unsaturated C₆-C₂₂ alkyl chain, G denotes a sugar residue with 5 or 6 carbon atoms and p denotes a number from 1 to 10; and at least one cationic polymer, at least one amphoteric polymer, or combinations thereof.

Disclosed is an aqueous ink composition for dyeing polyamide-based fibers which comprises: at least one kind of dye arbitrarily selected from dyes of three categories including acid dyes, direct dyes and reactive dyes; a compound which is represented by formula (1) [wherein X1, X2, X3 and X4 independently represent each a hydrogen atom or a methyl group; and j, k, m and n represent numbers, provided that the sum thereof is 4 to 40 inclusive] and has an average molecular weight of 340 to 2200; and ethylene glycol. Also disclosed is a method for producing a dyed polyamide-based fiber which comprises a step for applying said aqueous ink composition to a polyamide-based fiber by using an inkjet printer. Thus, it is possible to provide a dye ink for dyeing polyamide-based fibers, which has a high ejection stability in a printer equipped with an industrial inkjet head requiring a high-viscosity ink, has a high storage stability of the ink and shows a good fixability to fibers.

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 one-bath dyeing method of polyester-cotton knitted fabrics, which comprises the specific steps of (1) placing a polyester-cotton knitted fabric in a modifying liquid, carrying uniform padding with a padder, and piling at normal temperature, wherein the modifying liquid is made with 30-100 g/L of a cationic modifier, 15-30 g/L of sodium hydroxide, 5-15 g/L of a penetrant and the balance of water; (2) neutrally washing the cation-modified polyester-cotton knitted fabric in an overflow vat; (3) carrying out one-bath dyeing; (4) treating after dyeing. Cotton fibers are modified herein through the cation modification technique, so that the binding mode of active dye/direct dye and cotton fibers is changed; therefore, degree of dyeing can be increased, and wastewater chromaticity can be decreased. Dyeing acceleration by salts and color fixation by bases are not required, so that environmental pollution is avoided. One-bath dyeing along with conventional disperse dyes is available herein, dye screening is not required, and therefore, the dyeing and finishing process is greatly shortened and production efficiency is improved; the wash fastness is good, so that customers' needs are met.