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109results about How to "Increase color depth" patented technology

Digital reactive dye printing process for mulberry silk fabric

The invention provides a digital reactive dye printing process for a mulberry silk fabric. The process comprises the following steps: carrying out textile sizing, drying, carrying out jet printing, steaming, washing by cold water, washing by hot water, washing by soap, washing by hot water, washing by cold water, and drying, wherein a sizing agent used in the textile sizing step comprises the following components in percentage by weight: 1%-3% of sodium sulfate powder, 0.5%-1% of sodium alginate, 3%-5% of urea, 0.5%-1.5% of sodium hydrogen carbonate, 1%-2% of modified starch, 5%-7% of electrolyte and the balance being water. By virtue of the process, the digital printing color yield of the mulberry silk fabric is increased, the inkjet printing color depth on a textile is increased, the color difference between a pattern on the textile and an electronic pattern is reduced, and the hand feel of the fabric is good.
Owner:SHIJIAZHUANG HEXI APPL TRADING

Preparation method of zirconium silicate covered ceramic pigment taking ammonium zirconium carbonate as zirconium source and product prepared by preparation method

The invention discloses a preparation method of a zirconium silicate covered ceramic pigment taking ammonium zirconium carbonate as a zirconium source. The preparation method comprises the following steps: firstly, after dispersing powder of a coloring agent, uniformly stirring the coloring agent and an ammonium zirconium carbonate solution to form a stable suspension solution; reacting to form sedimentation on surfaces of coloring agent particles, so as to obtain a zirconium oxide inclusion; adding the zirconium oxide inclusion into a silicon source solution and uniformly mixing; adjusting the pH (Potential of Hydrogen) value to obtain sediment; drying the sediment to obtain a ceramic pigment precursor; calcining the ceramic pigment precursor and removing the uncovered coloring agent so as to obtain the zirconium silicate covered ceramic pigment powder. Furthermore, the invention further discloses a product prepared by the preparation method. By adopting the preparation method disclosed by the invention, damages to the ceramic pigment can be avoided and the covered pigment with high covering ratio and a core-shell structure is formed; the problem that the high covering ratio of the zirconium silicate covered ceramic pigment is incompatible with a low ratio of the coloring agent to the pigment is effectively solved, so that the color-causing depth of the covered pigment is effectively improved and the adding amount in a utilization process is reduced.
Owner:JINGDEZHEN CERAMIC UNIV

Cotton sliver mercerizing process and mercerizing device utilizing same

Disclosed are a cotton sliver mercerizing process and a mercerizing device utilizing the same, which belong to the technical field of textile technology. The cotton sliver mercerizing process includes: a, cotton sliver pretreatment step including dewing cotton slivers and dewatering the same or squeezing water out of the same to form wet cotton slivers with certain liquid content; b, a cotton sliver reeling step including reeling the wet cotton slivers on a reeling machine and fixing the cotton slivers by lay bands; c, a covering step including wrapping the reeled cotton slivers with the wrapping cloth integrally; and d, a mercerizing step realized by concentrated spraying and instant squeezing. The sliver cottons are mercerized effectively by dewing to reinforce and by means of concentrated spraying and instant squeezing, and alkali content of the cotton slivers is controlled all the time, so that the cotton slivers cannot be dissolved due to excessive swelling, and the difficult problem of failure in mercerizing the cotton slivers without twist is solved. In addition, the mercerized cotton slivers are bright, smooth and fluffy, and dye color yield is increased by 20%-30%.
Owner:WUXI NON SIZING TECH

Curcumin-carried pH-response color-changing antibacterial fiber and preparation method thereof

The invention provides a curcumin-carried pH-response color-changing antibacterial fiber and a preparation method thereof. The preparation method comprises the following steps: step 1, drying and dewatering polyacrylonitrile powder, and filtering for separating by utilizing a screen mesh; step 2, mixing curcumin, the polyacrylonitrile powder obtained in the step 1 and a solvent, wherein the mass concentration of the polyacrylonitrile is 18-22%, and the consumption of the curcumin is 0.5-5% of the polyacrylonitrile powder in dry weight; and step 3, stirring a mixed liquid obtained in the step 2 to puff and dissolve polyacrylonitrile to obtain a spinning solution, performing deaeration on the spinning solution, performing wet spinning to obtain a nascent fiber, performing drying densification on the obtained nascent fiber, and performing heat setting treatment, so as to obtain the curcumin-carried pH-response color-changing antibacterial fiber. According to the curcumin-carried pH-response color-changing antibacterial fiber and the preparation method thereof, the fiber is colored uniformly, the color fastness is excellent, and the fiber has the weaving mechanical property and the pH-response color-changing performance; the spinning temperature is low, and the medicine activity of curcumin can be still retained, so that the fiber has the anti-bacterial function.
Owner:DONGHUA UNIV

Flax fibre modifying method

This invention publishes the method of color flax fibre. A kind of character-change flax fibre: (1.) Put the flax fibre into 50-300g per L carbamide liquid. After endosmosis, put it out. (2) Heat the flax fibre in 300-400w micro-wave oven for 1-4 minutes. (3) Heat the flax fibre in the 600-hange the flax fibre. The color deepness can rise by 6%. (4) The flax fibre after character-change, the face will become coarse, it shows the face of some fibre molecule is cloven, and the face of other fibre molecule appears floss. So the fibre is a little loose, and it is dasy to be 800w imcro-wave oven for 0.5-3 minutes. The availability of the invention is: After character-c colored and character-change, the mechanics capability is not changed.
Owner:HEILONGJIANG UNIV

Multifunctional fiber with pH discoloration property, antibacterial property and drug-releasing property and preparation method thereof

The invention provides multifunctional fiber with a pH discoloration property, an antibacterial property and a drug-releasing property and a preparation method thereof. The preparation method is characterized by comprising the following steps: polyacrylonitrile powder is dried and dehydrated, and then is filtered and separated by a filter screen; curcumin, vitamin E, the polyacrylonitrile powder obtained by separation in the step 1 and a solvent are mixed; the obtained mixed liquid is stirred so that polyacrylonitrile is expanded; polyacrylonitrile is heated to be dissolved to obtain a spinning solution; the obtained spinning solution is subjected to de-foaming and wet spinning; and the obtained nascent fiber is subjected to drying densification and heat setting treatment, thus obtaining the multifunctional fiber with pH discoloration property, antibacterial property and drug-releasing property. With the method provided by the invention, the prepared fiber has the advantages of even coloring and excellent color fastness. The fiber has the weaving mechanical property and has the pH response discoloration property. Because of a low spinning temperature, drug activities of curcumin and vitamin E can be maintained, so that the fiber also has antibacterial and drug sustained-release functions.
Owner:DONGHUA UNIV

Liquid crystal temperature-sensitive anti-counterfeiting printing ink and preparation method thereof

The invention provides liquid crystal temperature-sensitive anti-counterfeiting printing ink. The printing ink comprises the following components in parts by weight: 15-25 parts of cholesteric liquidcrystal and a microcapsule thereof, 10-15 parts of a water-soluble glue solution, 50-60 parts of a connecting material, 0.1-1 part of an antifoaming agent, 0.1-1 part of a leveling agent, and 0.1-3 parts of a viscosity regulator, wherein the cholesteric liquid crystal is a mixture of 4-cyano-4'-amyl biphenyl and cholesteric oleyl carbonate; the cholesteric liquid crystal microcapsule is a microsphere capsule prepared from the cholesteric liquid crystal and a water-soluble glue solution; and the water-soluble glue solution is a mixture of gelatin and Arabic gum. The a printing ink has the advantages of easily available raw materials, low raw material cost and simple preparation method, and is suitable for the field of anti-counterfeiting labels, the color of an anti-counterfeiting pattern can change due to the temperature change, defects of slow color change and poor contrast effect of a conventional temperature-sensitive ink are overcome, and thus the printing ink has a great application prospect in the field of anti-counterfeiting package.
Owner:深圳市旺盈彩盒纸品有限公司

Dyeing method for anti-cutting fabric

The invention discloses a dyeing method for an anti-cutting fabric. The dyeing method comprises the following steps: pre-treating a gray fabric; firstly drying; performing corona treatment; scraping and impressing pigment printing paste; secondarily drying; baking; acquiring the end product. According to the invention, an ultra-high molecular weight polyethylene fabric is subjected to corona treatment so as to generate low temperature plasmas; under the effect of the low temperature plasmas, free radical reaction happens on the surface of the ultra-high molecular weight polyethylene fabric, the polymer is cross-linked, the surface is roughened and the wettability to polar solvents is promoted; the plasmas enter into the surface of the ultra-high molecular weight polyethylene fabric in themanner of electric shock and permeation to damage the molecular structure of the ultra-high molecular weight polyethylene fabric and oxidize and polarize the molecules on the treated surface. According to the invention, ion electric shock is utilized to erode an inert surface of the ultra-high molecular weight polyethylene fabric, so that the adhesive ability of the surface of the ultra-high molecular weight polyethylene fabric is promoted, the adsorptive property of the coating is enhanced, the color depth is increased, the pigment consumption for same color depth is reduced, the cost is lowered and the pigment dyeing is clean and environment-friendly.
Owner:IANGSU COLLEGE OF ENG & TECH

Polyester fabric dyeing technology

ActiveCN108660791AIncrease color depthSave caustic soda consumptionDyeing processEngineeringHigh pressure
The invention relates to the field of textile dyeing and finishing, and concretely relates to a polyester fabric dyeing technology. The polyester fabric dyeing technology comprises the following steps: carrying out high-temperature and high-pressure dyeing on a polyester fabric by a high-alkali resistance disperse dye, then processing the dyed polyester fabric with an alkaline solution, and then carrying out reduction washing and water washing, wherein the pH value of the alkaline solution is 9 or above. The polyester fabric dyeing technology selecting the high-alkali-resistance disperse dye breaks the conventional process flow of alkali lye treatment, water washing, high-temperature and high-pressure dispersion dyeing, reduction cleaning and water washing processing of the polyester fabric, and reconstructs a process flow of high-temperature and high-pressure dispersion dyeing, alkali lye processing, reduction cleaning and water washing, so the color depth of the dyed polyester fabricis significantly improved, the alkali reduction efficiency of the polyester fabric is improved, the waste of water and water pollution in the dyeing technology are reduced, and energy saving and environmental protection are facilitated.
Owner:PENGLAI JIAXIN DYES & CHEM

Shell manufacturing method, shell and electronic equipment

The invention discloses a shell manufacturing method, a shell and electronic equipment. The manufacturing method of the shell comprises the steps of carrying out hot pressing on a glass base material,and obtaining a double-curved-surface glass substrate, wherein the double-curved-surface glass substrate is provided with a first surface and a second surface which are opposite in the thickness direction, and the four corners of the double-curved-surface glass substrate are all cambered surfaces; carrying out surface pretreatment on the first surface and the second surface of the double-curved-surface glass substrate to obtain a double-curved-surface glass cover plate, the surface treatment comprising dull polish treatment; and polishing the cambered surfaces of the four corners of the double-curved-surface glass cover plate and the edges of the two opposite long edges of the first surface and the second surface, and forming gradient texture layers of a first preset color on the camberedsurfaces of the four corners and the edges of the two opposite long edges of the first surface and the second surface to obtain the shell. The shell with the edge part having the gradual change effect is formed, and the requirement of a user for the high-quality appearance of the electronic equipment shell can be met.
Owner:VIVO MOBILE COMM CO LTD
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