[summary of the invention]
The technical problem that the present invention need solve provides the imitative old processing method of the jeans of a kind of environmental protection, simple and easy industrialization.
According to the above-mentioned technical problem that needs solution, designed a kind of imitative old processing method of jeans, the step of this method comprises:
(1), provides pretreated jeans;
(2), the part of doing imitative old processing at the need of described pretreated jeans is coated with or prints photochemical catalyst;
(3), the strong illumination jeans that utilize arc lamp to produce are covered with the part of titanium dioxide optical catalyst;
(4), the jeans of doing the arc lamp irradiation are washed, to remove residual photochemical catalyst.
Further improve as the present invention, described photochemical catalyst comprises titanium dioxide optical catalyst, or the composite photocatalyst of titanium dioxide and zinc oxide composition.
Further reelect described arc lamp as the present invention and comprise xenon arc lamp, LED light lamp, plasma arc light modulation.
Further improve as the present invention, pretreated jeans finished earlier that destarch is washed and dry step in the step (1), and destarch is washed to the alkali destarch and washed or enzyme desizing is washed.
Further improve as the present invention, the high light of irradiation also filters by a kind of heat-reducing filter in the step (3).
Further improve as the present invention, the washing in the step (4) is washed or is added washing agent with strong washing for carry out clear water in washing machine.
Further improve as the present invention, described titanium dioxide optical catalyst be a kind of be the uniform nanoparticle suspension aqueous solution of Main Ingredients and Appearance with titanium dioxide and polyethylene glycol, the concentration of titanium dioxide is 10~40g/L, the concentration of polyethylene glycol is 0.5~5g/L.The collocation method of this titanium dioxide optical catalyst is: (a), take by weighing the nano-titanium dioxide powder of certain mass, place a beaker; (b), add proper amount of deionized water and use ultrasonic oscillator to handle 2~8h; (c), again the polyethylene glycol that adds certain mass, constant temperature stirs 20~60min, obtains stabilized uniform suspension; (d), measure the average grain diameter of dispersed particle, guarantee that average grain diameter is in nanoscale through the laser light scattering Particle Size Analyzer.
The high light that the present invention utilizes arc lamp to send destroys the effect of dyestuff, makes jeans reach imitative old effect, and compared with prior art, technological method for processing of the present invention is simple, is easy to industrialization, and environment friendly and pollution-free.
[specific embodiment]
The invention will be further described below in conjunction with drawings and embodiments.
The imitative old processing method of jeans of the present invention comprises as the step of this method of Fig. 1:
(1), provides pretreated jeans, that these jeans are generally made by raw materials such as cotton, polyester-cotton blend, just finish ready-made clothes, and, imitative old first being processed can done, it is carried out earlier the alkali destarch is washed or processing is washed in the alkali destarch, removing remaining slurry, after destarch is washed, oven dry again, used in order to following processing.
(2), the part that need do imitative old processing at above-mentioned pretreated jeans is coated with or prints photochemical catalyst, the photochemical catalyst of selecting for use can be titanium dioxide optical catalyst, or the composite photocatalyst of titanium dioxide and zinc oxide, other the metal photochemical catalyst that also can be equal to replacement of titanium dioxide, as tin oxide (SnO2), zirconium dioxide (ZrO2).Wherein titanium dioxide optical catalyst be a kind of be the uniform nanoparticle suspension aqueous solution of Main Ingredients and Appearance with titanium dioxide and polyethylene glycol, the concentration of titanium dioxide is 10~40g/L, the concentration of polyethylene glycol is 0.5~5g/L.The collocation method of this titanium dioxide optical catalyst is: (a), take by weighing the nano-titanium dioxide powder of about 5~10g, place the beaker of 500mL; (b), add proper amount of deionized water and use ultrasonic oscillator to handle 2~8h; (c), again the polyethylene glycol that adds 0.1~1.0g, constant temperature stirs 20~60min, obtains 250mL stabilized uniform suspension; (d), measure the average grain diameter of dispersed particle, guarantee that average grain diameter is in nanoscale through the laser light scattering Particle Size Analyzer.
(3), the strong illumination jeans that utilize arc lamp to produce are covered with the part of titanium dioxide optical catalyst, irradiation time is approximately 1~10 minute, the concrete time is also decided by imitative old processing effect.Wherein, the arc lamp that is adopted comprises xenon arc lamp, LED light lamp, plasma arc light modulation, or other high-energy spectrum.In when irradiation, also can utilize a kind of heat-reducing filter that high light is carried out filtering, it is longer to leach in the high light a part of wavelength, and the spectrum that frequency is lower obtaining the spectrum of institute's energy requirement, thereby helps imitative old processing.
(4), the jeans that will do arc lamp irradiation wash in washing machine, also can add washing agent and wash by force, to remove residual photochemical catalyst.
(5), handle after, again jeans are dried processing, obtain having the jeans of imitative old effect.
The high light that the present invention utilizes arc lamp to send destroys the effect of dyestuff, makes jeans reach imitative old effect, and it is simple to have process, is easy to industrialization, and environment friendly and pollution-free advantage.
Exemplify specific embodiment below
Embodiment one
(1) after the jeans that will just finish clothing carries out the alkali destarch and washes and dry, in order to the imitative old processing of back.
(2) prepare the titanium dioxide optical catalyst that titanium dioxide concentration is 25g/L according to above-mentioned compound method.
(3) need be the local manual TiO that coats that imitates old effect at the trouser legs of jeans
2Photochemical catalyst.
(4) the xenon arc light that air-cooled type xenon arc light transmitter is produced backing after filtration is radiated at the place that scribbles titanium dioxide optical catalyst, shine 5~8 minutes, after reaching required effect, stops to shine;
(5) jeans that xenon arc illumination was penetrated are put into wash water machine and are fully washed 10min, remove residual titanium dioxide optical catalyst.
(6) the jeans oven dry to having washed again obtains the jeans as the left side among Fig. 2.
Embodiment two
(1) after the jeans that will just finish clothing carries out enzyme desizing and washes and dry, in order to the imitative old processing of back.
(2) prepare the titanium dioxide optical catalyst that titanium dioxide concentration is 20g/L according to above-mentioned compound method.
(3) titanium dioxide optical catalyst that will prepare is imprinted on the place that needs stamp by screen printing.
(4) the xenon arc light that air-cooled type xenon arc light transmitter is produced backing after filtration is radiated at and scribbles TiO
2The place of photochemical catalyst was shone about 10 minutes, after reaching required effect, stopped irradiation;
(5) jeans that xenon arc illumination was penetrated are put into wash water machine and are fully washed 10min, remove residual TiO
2Photochemical catalyst.
(6) the jeans oven dry to having washed again obtains the jeans as the right among Fig. 2.
Above-described only is embodiments of the present invention, should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the invention design, can also make improvement, but these all belongs to protection scope of the present invention.