36results about How to "Extend dyeing time" patented technology

The invention discloses a one-bath dyeing process for a cotton and linen blended fabric by using natural vegetable dye. The one-bath dyeing process comprises the following steps: firstly, carrying out low-temperature treatment on the cotton and linen blended fabric; secondly, finishing boiling off, bleaching and dyeing at a time by adopting a one-bath treatment process. According to the one-bath dyeing process, a process flow is shortened, the discharge amount of wastewater is reduced, energy consumption is reduced, and the national requirements of energy conservation, consumption reduction, and reduction of discharge amount of the wastewater and waste gases on a textile industry are met; no organic solvent is used in the whole dyeing process, so that the harm to a human body and environment is little; a one-bath treatment solution can be repeatedly used, so that the discharge mount of the wastewater can be reduced; the dyeing color difference can be remarkably reduced by prolonging the one-bath treatment time; after the solution is treated by adopting a one-bath method and is subjected to color fixing by a sodium silicate solution, so a color fixing effect is excellent, the dyeing rate can reach 95 percent or above, and the color fixing rate also can reach 90 percent or above.

The invention discloses an efficient cloth dyeing device for garment processing. The efficient cloth dyeing device comprises a dyeing box, a filter box, a first box body, a second box body and a collecting box, wherein the filter box is installed at the top of the dyeing box, the first box body is installed at the top of the filter box, the second box body is installed on one side of the first boxbody, the collecting box is installed at the bottom end of the second box body, a feeding port is formed in the left side of the dyeing box, a plurality of first rollers are movably installed insidethe dyeing box, a discharging port is formed at the right side of the top of the dyeing box, and through grooves are formed in the right side of the bottom of the filter box and the right side of thetop of the filter box. According to the efficient cloth dyeing device, the dyeing time can be prolonged in the dyeing process, and namely, redundant dye moves upwards along with cloth and then flows back into the dyeing box under the action of gravity; in the preheating process, the dyeing effect can be enhanced, and the temperature of the cloth can be increased; and in the subsequent drying process, the efficiency is improved, and the extruded dye enters the filter box through through holes above firstly, is filtered by a filter plate and enters the dyeing box, so that the waste of the dye isavoided.

The invention discloses a method for slicing heavy leather blade paraffin and relates to a method for slicing plant paraffin. Operating procedures include fixing, dehydrating, transparentizing, paraffin infiltration, embedding, slicing, dewaxing, dyeing and mounting. In the splicing process of the heavy leather blade paraffin, a fixing agent, a dehydrating procedure, a transparentizing procedure,a paraffin infiltration method, a dyeing method and mounting are improved, i.e., selection of the fixing agent, determination of the dehydrating procedure, determination of the transparentizing procedure, determination of the dewaxing procedure, the dyeing method and the mounting method are improved. The method is also suitable for other blades with different thicknesses and properties. By adopting the method, slice manufacturing of blade paraffin with different thicknesses and properties can be realized practically, and a uniform and practical manufacturing method for theoretical manufacturing of paraffin is popularized.

The invention discloses a pearl dyeing method belonging to the technical field of pearl dyeing. The method comprises the following steps: (1) preliminary treatment of a pearl: soaking a cleaned pearl in oxydol for 12-24 hours, transferring into anhydrous alcohol to carry out first dehydration, and then replacing the anhydrous alcohol once; (2) preparation of a dyeing liquid: preparing water, anhydrous alcohol and anhydrous methanol into a solvent according to a volume ratio of 2-6:3-5:1-5, and adding dye, potassium iodide and surfactant to the solvent; and (3) dyeing of the pearl: impregnating the pretreated pearl in the prepared dyeing liquid, dyeing at a constant temperature of 45 DEG C for 3-7 days, and airing after cleaning to obtain a finished product. The invention has the advantages of uniform dyeing and delicate and bright color.

The invention relates to a large-scale production method of plant blue indigo dye for garment dyeing. In the large-scale production method of plant blue indigo dye for finished garment, nitrogen gas is charged into the garment dyeing device to remove the air therein, or the inside of the garment dyeing device is pumped A negative pressure of -0.05--0.07MPa is formed by vacuum, and then the garment is dyed with plant indigo dye in the garment dyeing device. The dyeing temperature is 26-70°C and the dyeing time is 50-150 minutes. The invention can not only solve the problem that plant blue indigo dye cannot be applied to modern garment dyeing machines on a large scale, but also greatly reduce the number of times of dyeing, from the traditional 6 to 18 times of repeated dyeing to 1 to 3 times of dyeing; it can also increase the dyeing temperature, thereby Improve the dyeing rate, level dyeing property, dye penetration, and improve the dry and wet rubbing fastness and light fastness of plant indigo dye.

The invention discloses a functional compound dyeing acid, which comprises the following components: glacial acetic acid, formic acid, EDTA, penetrant, modified graphene oxide, dispersant and deionized water. The acid component of the compound dyeing acid is mainly provided by glacial acetic acid and formic acid. In order to reduce the influence of the dye on the dyeing acid, a complexing agent EDTA is added, and the addition of a penetrating agent can improve the penetration effect of the dyeing acid and shorten the dyeing time; and this The silicon-containing modified graphene oxide and silicon-containing hyperdispersant used in the invention can not only significantly improve the dispersion effect of dyeing acid, shorten the dyeing time, reduce the amount of dyeing auxiliaries, but also reduce the yellowing of fabrics caused by formic acid Effect, thereby enhancing the vividness of fabric dyeing.

The invention relates to a method for performing normal-temperature rapid dip dyeing on a seaweed non-woven fabric and enhancing ultraviolet resistance, in particular to a method for utilizing a copper phthalocyanine pigment to perform rapid dip dyeing on the seaweed non-woven fabric and enhance ultraviolet resistance, and belongs to the technical field of spinning dyeing and printing. According to the method, cationic surfactant cetyltrimethylammonium chloride is utilized to prepare the small copper phthalocyanine pigment stably dispersed in water, the normal-temperature rapid dip dyeing of the seaweed non-woven fabric is achieved, the ultraviolet light transmittance can be remarkably lowered, the ultraviolet protection factor (UPF) of the non-woven fabric is improved remarkably, and thus the ultraviolet resistance of the seaweed non-woven fabric can be enhanced obviously.

The invention discloses a fabric dyeing method with good dyeing stability. The method comprises steps as follows: fabric is firstly soaked in a dyeing auxiliary, is subjected to stirring and ultrasonic oscillation treatment simultaneously and then is subjected to roll compacting and dry blowing treatment, a dye solution is evaporated into dye steam, the dye steam is introduced to the fabric for dyeing, furthermore, repeated circulating pressurization and negative pressure application are performed during dyeing, dyes are pressed to the fabric for dyeing through pressurization, the dyeing efficiency is improved, part of dyes with poorer dyeing stability are separated out through the negative pressure application, then the fabric is dyed again through pressurization, and the dyeing stability is improved; a color fixing agent is added for fumigation treatment, and steam formed through evaporation of the color fixing agent is used for fumigating the fabric; finally, the fabric is washed and dried, and a finished product is obtained. The fabric dyeing method has the advantages as follows: the dyeing time can be shortened, the dyeing efficiency is improved, and the dyeing stability is good.

The invention relates to a method for producing organic mulch from landscaping waste. According to the method, the landscaping waste in maintaining and planting processes is taken as a raw material, the raw material is mechanically ground, the size of fragments is not larger than 5 cm, lignin and bark in the fragments after mechanical grinding are subjected to enzymolysis, after a phosphate flame retardant solution is sprayed, a wood dyer is sprayed uniformly to dye the landscaping waste fragments, and finally, the fragments are subjected to vacuum packaging after insect killing, bacteria killing and drying. The method is simple, the steps are easy to operate, the organic mulch is prepared from the landscaping waste as the raw material, so that not only is the pressure for municipal refuse disposal relieved, but also resources are used more sufficiently, and the organic mulch prepared after grinding, enzymolysis, drying, flame retardant treatment, dying, bacteria killing and insect killing is sufficiently sterilized, not prone to decomposition, packaged more sanitarily and easy to store.

The invention provides a near-infrared fluorescent dye and its preparation method and application. The near-infrared fluorescent dye is called ICG-SH, and its structure is as shown in formula (I). The compound ICG-SH retains the indocyanine green The luminescent group has stable properties and stronger stability.

The invention discloses a low-liquor-feeding-rate rapid silk dyeing technology. According to the low-liquor-feeding-rate rapid silk dyeing technology, dyeing is achieved by conducting dip dyeing and jet dyeing on shell fabric, external circulation of dye liquor in a cylinder body is added, in this way, the liquor feeding rate is lowered greatly, dyeing time is shortened, energy consumption is reduced, and the quality of products is improved.