31results about How to "Reduce the difficulty of washing" patented technology

The invention discloses a method for preparing nanometer silver powders. The method comprises the following steps: a. mixing AgNO+, 4 percent of polyvinyl alcohol and about 60 percent of emulsifier triethanolamine; b. adding proper amount of glycerol into the mixture; c. smoothly reacting the mixture for 30 minutes; d. adding deionized water into the mixture, and performing pumping filtration washing on the mixture through a vacuum pump; e. dehydrating the mixture by using anhydrous alcohol; f. adding 20 to 50 milliliters of 0.1 gram per liter dried protective agent benzotriazole after the dehydration; and g. drying the mixture for 18 to 24 hours at a temperature of 50 DEG C to obtain the nanometer silver powders of which the particle diameter is between 50 and 100 nanometers. The method for preparing the nanometer silver powders has the advantages of simple production process, low production cost, low investment of equipment, easy process control, and high yield.

The invention belongs to the technical field of loose fiber dyeing and relates to cold-pad batch dyeing process for loose fibers. The cold-pad batch dyeing process for loose fibers comprises the steps of soaking and squeezing, rotating type cold-patch treatment, pressing and water squeezing and post-treatment. The loose fibers are soaked and squeezed in a twice soaking and once squeezing mode, the rotating type cold-patch treatment is then conducted, the loose fibers are pressed and water is squeezed out after the rotating type cold-patch treatment is conducted, and after the water and dye in a loose fiber cake or loose fibers are squeezed out, the loose fiber cake or loose fibers are sent for post-treatments of drying and the like. The cold-pad batch dyeing process for loose fibers is applied to cold-pad batch dyeing of the loose fibers and has the advantages of being uniform in dyeing, small in water consumption and the like. In addition, procedures are simple.

The invention relates to a wringer suitable for loose fiber or loose fiber cake dehydration and belongs to the technical field of loose fiber dyeing. The wringer comprises a base, a cylindrical cylinder body and a top plate. The cylindrical cylinder body is arranged on the base. A leakage hole is formed in the cylindrical cylinder body. The top plate is movably connected with the cylindrical cylinder body. The upper portion of the top plate is connected with a pressure component. A power component drives the top plate to carry out piston motion in the cylindrical cylinder body, so that moisture in loose fibers in the cylindrical cylinder body is squeezed out. The wringer is used for loose fiber cold rolling stack dyeing and has the advantages that dyeing is even, the amount of used water is small, and procedures are simple.

The invention provides a preparation method of a ternary precursor with a controllable structure, belonging to the technical field of positive electrode materials of lithium ion batteries. Accordign to the invention, on the basis of preparing a ternary precursor by using a coprecipitation method, a structure control agent is introduced in a reaction stage; the structure control agent is decomposedat a high temperature to generate gas, so the stacking density degree of the ternary precursor is changed under the condition that the primary particle morphology of the ternary precursor is not changed; and since the gas generated by decomposition of the structure control agent is released from the interior of the ternary precursor to the exterior of the ternary precursor, metal salt which doesnot react completely inside can be brought out of a stacked structure, so the washing difficulty of sodium and sulfur in post-treatment is reduced and the ternary precursor with a low sodium and sulfur level is obtained.

The invention discloses a cellulose fiber fabric printing process. The cellulose fiber fabric printing process comprises the following steps that 1, cationic modification of cellulose fiber fabric iscarried out; 2, bleaching, acid neutralization and drying are carried out; 3, reactive dye printing is carried out; 4, aging, washing, soaping and finished product shaping are carried out; cationic modification is cold reactor modification or impregnation modification; the amount of a cationic modifier in cold reactor modification is 20-50g/L, and the amount of a cationic modifier in impregnationmodification is 10-30g/L; and in reactive dye printing, catalysts such as triethylene diamine, niacin, trimethylamine, and pyridine need to be added. According to the cellulose fiber fabric printing process, moderate cationic modification is carried out on the cellulose fiber fabric, and meanwhile, the catalysts are assed during printing, so that in the process of ageing and color-fixing, cation adsorption and catalysis and color-fixing are performed simultaneously, a synergistic effect is achieved, the high color-fixing rate of the reactive dye is ensured, the difficulty of washing after printing is reduced, the problem of white background staining is effectively solved, and the amount of water used for printing washing is reduced.

The invention relates to the fields of biological material processing, energy materials and environmental protection, and discloses a preparation method for super activated carbon and a method for recycling a produced waste liquid and by-producing a carbonate. The preparation method for the super activated carbon comprises the following steps: contacting a carbonaceous material with an oxidizing agent and a hydrated alkaline activator under vacuum conditions, and immersing the oxidizing agent and the hydrated alkaline activator into the carbonaceous material; performing first heat treatment onthe carbonaceous material in which the oxidizing agent and the hydrated alkaline activator are immersed to activate the carbonaceous material and obtain a carbon dioxide gas; and performing cooling on the obtained activated carbonaceous material, performing washing, and performing drying to obtain the super activated carbon and the carbon dioxide gas. The invention also discloses that the waste liquid produced by the above process is treated at different pH values to realize recovery of by-products and recycling of the waste liquid. According to the method provided by the invention, through the above method, the product yield can be effectively improved, the waste liquid can be recycled and the by-products can be recycled; and the method saves energy, protects the environment, and has significant social, environmental and economic benefits.

The invention provides a cleanable clothing tag, which includes a tag body and a sling belt, the tag body is a cuboid, and a first cleaning device is provided on the left side of the tag body, and the first cleaning device First chutes are provided at the upper and lower ends, a second cleaning device is provided on the right side of the card body, a second chute is provided below the second cleaning device, and a second chute is provided above the card body. There is a connecting device, the middle of the sling is connected with the connecting device, the left end of the sling is provided with a female buckle, and the right end of the sling is provided with a child buckle. The cleaning hangtag of the present invention not only can easily remove the hangtag from the clothing but also will not cause damage to the clothing. At the same time, when the clothes are stained with oil stains, vegetable stains, mud, etc., they can be cleaned at any time. Wipe and wash the stains, reduce the difficulty of washing oil stains and reduce the impact on the subsequent wearing of clothing, greatly increase the value of the tag, and have broad market prospects.

The invention discloses a digital active wet process transfer printing method of a cellulose fabric. The digital active wet process transfer printing method of the cellulose fabric is performed by the five steps: manufacturing a special transfer printing medium; jet-printing a pattern; pre-processing a fabric; performing transfer printing; and performing post-finishing of the fabric. According to wet process transfer printing, by spraying a pre-processing liquid, the fabric is dyed and fixed in color in a clinical water content stat when fibers are subjected to maximum swelling without taking urea as a moisture absorbent, and the fabric is not padded and pasted, so that the washing difficulty is reduced, and sewage discharge is reduced. The method disclosed by the invention not only has the advantages of clear and smooth digital inkjet printing pattern and rich layers of picture, but also has the characteristics of efficient production of conventional transfer printing and environmental protection and energy conservation, and further has the characteristics that the active print is bright in color, excellent in hand feel, good in color fastness and healthy and comfortable.

The invention discloses a folded plate type demister for treating flue gas desulfurization waste gas. The folded plate type demister comprises a protective shell, two demisting cavities are formed in the side wall of the protective shell, air inlet pipes are arranged at the inner tops of the demisting cavities, and first separation plates are rotationally connected to the inner bottoms of the demisting cavities; a second separation plate is rotatably connected to the upper end of the first separation plate, a supporting plate is fixedly connected to the upper end of the second separation plate, a sliding groove is formed in the bottom in the demisting cavity, and a driving device for driving the supporting plate to move up and down is installed in the sliding groove. By alternately blowing entrainment-containing airflow into the two demisting cavities, the two supporting plates can be sequentially driven to move up and down under the action of the driving device, so that the included angle between the first separation plate and the second separation plate is continuously changed, the entrainment gathered at the corner is guided into the interception tank, the washing difficulty can be greatly reduced, and meanwhile, the consumption of water resources for cleaning can be saved.

The invention provides a preparation method of fluorine-containing polymer powder, wherein the preparation method is realized by jointly using a coagulant and a mechanical coagulation mode and settingdifferent mechanical stirring speeds before and after the adding of the coagulant. The preparation method provided by the invention has the advantages of high emulsion coagulation efficiency, short coagulation time and the like.

The invention provides a cleanable spiral heat exchanger. The cleanable spiral heat exchanger comprises a main body, a first end cover and a second end cover; the main body is wound by a first U-shaped groove plate and a second U-shaped groove plate, which are laminated; the first U-shaped groove plate and the second U-shaped groove plate respectively form a first spiral channel and a second spiral channel; the bottom of the first U-shaped groove plate is positioned at a first end of the main body; and the bottom of the second U-shaped groove plate is positioned at a second end of the main body. In the cleanable spiral heat exchanger, when the first spiral channel is blocked, the second end cover is only disassembled; then, a first cavity is inflated through an air supply mechanism, so that the inside of the first spiral channel can be flushed through a first air valve without disassembling the first end cover and emptying the second spiral channel, and the flushing difficulty is greatly reduced; and similarly, when the second spiral channel is blocked, the first end cover is only disassembled, and the second spiral channel is washed by air through the air supply mechanism and a second connecting head.

The invention discloses a water purification ultrafiltration membrane component which comprises a fixing ring, a plurality of external pressure type hollow fibers which are not communicated with one another are clamped by the fixing ring, the upper ends of the external pressure type hollow fibers are clamped and tightly fixed in the fixing ring, and the lower end of a single external pressure typehollow fiber freely floats. A water outlet is formed in the top of the single external pressure type hollow fiber, the bottom of the single external pressure type hollow fiber is sealed, water permeable micropores are formed in the side wall of the single external pressure type hollow fiber in a penetrating mode, the water purification principle is the same as that in the prior art, but due to the fact that each external pressure type hollow fiber is in a free state in water and moves along with water flow, impurities in water cannot be accumulated among the plurality of external pressure type hollow fibers; during backwashing, purified water flows downwards from the water outlet through the permeable micropores and permeates out to wash impurities attached to the surface of the externalpressure type hollow fiber, so that the external pressure type hollow fiber is convenient to wash, the washing difficulty is greatly reduced compared with the prior art, and the washing cost is saved.

The invention discloses a protection structure for an artificial island revetment. The protection structure comprises multiple parallel prefabricated cylinders and a cover plate for coving all the prefabricated cylinders in a sealed manner. A bottom plate is arranged on each prefabricated cylinder. The cylinder wall and the bottom plate of each prefabricated cylinder are formed through overall pouring. Every two adjacent prefabricated cylinders are connected together through a cast-in-place concrete structure equal to the prefabricated cylinders in height. The lower portion in each prefabricated cylinder is filled with sand. Barrier boards are pressed on the sand. Wave dissipating holes are formed in the side facing waves of the upper portion of each prefabricated cylinder. By the adoption of the protection structure for the artificial island revetment, the wave reflection, wave force and wave run-up of the structure can be reduced, the foundation stress is lowered, the anti-sliding stability of the structure is improved, the washout difficulty of waves to the foundation is increased, and the anti-washout stability of the structure is improved; transportation and construction are easy; and the protection structure is adaptive to coral reef foundations, capable of resisting the bad wave condition and effectively reducing the washout of the waves and suitable for artificial islands or atolls with the bad ocean environment and the complex geological conditions.