328results about "Synthetic fibres" patented technology

An electret filter media, and mask, that is made of a nonwoven web of thermoplastic microfibers. The thermoplastic microfibers are of substantially the same composition, are nonconductive, and have an effective fiber diameter less than about 15 micrometers. The nonwoven web also has sufficient unpolarized trapped charge to exhibit an initial filtration quality factor of at least 0.31 when measured under the DOP Penetration and Pressure Drop Test.

A wiper having a controlled release anti-microbial agent therein for providing anti-microbial cleansing of surfaces is provided. The wiper is formed from an absorbent base web to which an anti-microbial formulation is adhered. The formulation includes an anti-microbial agent that is capable of being controllably released from the wiper. In some embodiments, a polymer mixture may be employed to control the rate of release of the anti-microbial agent. Various anti-microbial agents, such as metal ions and organic compounds may be employed.

The invention provides a nano-silver antibacterial fabric and a preparation method thereof. The nano-silver antibacterial fabric has the characteristics that a zinc oxide nano line grows on the fabric; and silver nano particles are deposited on the zinc oxide nano line. The zinc oxide nano line is synthesized by a solution chemical method; and the silver nano particles are deposited on the zinc oxide nano line by a simple 'immersion-illumination' method. The nano-silver antibacterial fabric prepared by the method has extremely obvious long-time antibacterial performance; the silver nano particles are small in size and cannot be accumulated; a synthesis process is environment-friendly; and the nano-silver antibacterial fabric can be recycled and reused. The nano-silver antibacterial fabric can be used for single-point water treatment to reduce microorganism content in water and can be suitable for medical surgical dressing and medical fabrics; and the nano-silver antibacterial fabric can be used as an antibacterial air filtration device for preventing bio-aerosol from being gathered on a ventilating, heating and air conditioning system.

The invention relates to a multilayer electret nanofiber filtering material and a preparation method thereof. The invention adopted the technical scheme is as follows: through an electric-field stepped increasing/reducing technology, utilizing a combined needle head for electrostatic spinning to realize deposition of spinning polymer solution on a receiving substrate to obtain nanofiber, carrying out slight dissolving treatment on the surface of a nanofiber layer by a certain release rate by adopting a recovery solvent steam, wherein the nanofiber layer is uniformly filled with electret materials and the diameter of the nanofiber layer is distributed in a stepped-increasing or stepped-reducing manner along the direction vertical to the breadth. According to the multilayer electret nano-fiber filtering material, the electret charge stability is extremely high, the surface electrostatic potential is 250-7000V, simultaneously the filtering performance is excellent, the filtering efficiency for 0.03-10 microns particulates is more than 99.997%, the resistance pressure drop is less than or equal to 39Pa, the service life is long, and the development and application prospect in the aspect of filtering materials for air purifiers, window gauzes, masks and filtering papers and the like are wide.

The invention discloses a temperature-sensitive hydrophilic cross-linking crystal type polyurethane coating agent, a preparation method thereof and application thereof, and belongs to the technical field of textile chemical engineering. The preparation thereof comprises the following steps of: using a prepolymer method, taking 4,4'-diphenylmethane diisocyanate (pure MDI) as a hard segment, taking polyester polyol or polyether polyol as a soft segment, adding micromolecular diol chain-extension into the segments, and performing self-emulsification to obtain the polyurethane coating agent. After textile is coated by adopting a proper process, the capability of hydrostatic pressure and moisture permeability of the textile is greatly improved, and the moisture permeability of the textile represents higher response accuracy and sensitivity to environmental temperature changes. The response range of the moisture permeability of the finished coated textile to the environmental temperature changes is between about 17.0 and 28.0 DEG C so as to furthest meet the requirement of a human body on comfort.

The invention relates to a heat-resisting flame-retardant fiberglass product for industrial heat preservation and a preparation method thereof. The preparation method of the fiberglass product comprises the following steps of: firstly evenly mixing all components in percentage by mass according to a gelatine prescription to prepare a glue solution, forming a coating on fiberglass cloth by adopting the glue solution in a coating or soaking cementing way, and finally drying and curing to obtain the fiberglass product; wherein the coating amount of the coating on the surface of the fiberglass cloth is 20 to 220g/m<2>, and the coating weight is 10 to 40 percent of the fiberglass product; and the gelatine is prepared by mixing all components. The finished product obtained after drying and sizing is used for heat insulation, flame retarding and heat preservation outside the wall of an industrial pipeline or a vessel, and is especially suitable for occasions which have higher requirements for heat preservation and flame retarding.

An object of the present invention is to provide a separation functional material having more excellent adsorptive separation performance than previously. In order to attain this object, separation functional materials of the present invention are characterized in that they are formed by introducing a polymer side chain derived from a p-haloalkylstyrene onto the backbone of an organic polymer base and introducing a functional group onto the polymer side chain.

The invention discloses a manufacturing method for kapok phase-change material that includes the following steps: taking preprocess to 5-100% kapok fiber, 0-95% cellulose fiber, 0-90% other fiber through refining technology of cotton fabric, dipping into phase-change finishing agent for 1-5 hours, extruding the rest finishing agent, pre-drying for 3-10 minutes at 40-100 degree centigrade, baking for 1-5 minutes at 80-160 degree centigrade, taking soaping for 10-20 minutes at 60 degree centigrade, cleaning by water. The benefit effect of the invention is that it achieves optimal temperature adjusting function for kapok, saves refrigeration and heating energy, improves the anti crease and humidity transmission capability.

The invention discloses vinylon spinning oil composed of lauryl oleate, polyoxyethylene (3) cetyl sulfate, sperm oil hydrosulfate and polyethylene. The invention has reasonable formula, good use effect, and low production cost.

The present invention relates to a method for improving image property of ink-jetting printing with Gemini compounds and belongs to the technical field of textile chemistry. The present invention is characterized in that the method comprises the following steps: removing the residues on the surface of the textile fiber and then treating with sodium carbonate and peregal O solutions; immersing or padding finishing with impregnating solutions of Gemini cationic compounds; and then baking and ink-jetting printing. The Gemini quaternary ammonium salt finishing technology can improve the ink-jetting printed image property of textiles and increase the definition as well as the color depth and the brightness. The finished textiles have excellent color fastness and feel good. Besides, the method has the advantages of low fiber damage, zero sewage discharge, energy saving and high production efficiency and is worth of vigorous popularization.

The present invention relates to a metal phthalocyanine fiber-supported metal phthalocyanine having catalytic activity and preparation method, said metal phthalocyanine with fiber or fabric through covalent bond conjoint mode combining to form supported fiber having catalytic activity. The used etal phthalocyanine is transition metal ion such as characterized in having the structure of formula 1, in which M is a Fe,Co,Cu,Mn,Rb,Al,Zn and Ni; R1,R2,R3,R4 each can be H, any of the five in formular (1), and others are all H, the construction of the radical R5 can be -NH2, -NHCOCH3, -NHSO3Na, and -NHSO3H. Said preparation method is selecting metal phthalocyanine as reactive group having triazine structure under pH 8- 11 reaction temperature 45 -95 degree centigrade condition, adding fiber or fabric to finite concentration reactivity metal phthalocyanine aqueous solution, continuously stirring, after reaction taking out fiber or fabric and respectively to make caustic washing and water washing, drying to obtain fiber-supported metal phthalocyanine or fabric. Said invention has simple equipment, easy to operate etc advantages.

The invention discloses a radiation refrigeration composite-photon-structure thin membrane and a preparation method thereof. The thin membrane comprises a fiber layer and a microsphere layer from bottom to top. The thin membrane system has the advantages of high sunlight reflection, high infrared radiation, low angle dependence and the like, reflection to energy of sunlight wave bands (0.25-2.5 microns) reaches 97%, the average emissivity in atmospheric window wave bands (8-13 microns) reaches 0.96, the temperature can be reduced by 10 DEG C to the greatest extent under irradiation of 1,000 W/m<2> sunlight, the radiation refrigeration effect is excellent, and the thin membrane has good flexibility and high strength. A simple two-step method is adopted as the preparation method and comprises the steps that the fiber layer is obtained through electrostatic spinning, and the microsphere layer is obtained through deposition of silicon dioxide microsphere dispersion liquid. The thin membrane is simple in structure, efficient in performance, easy to prepare, low in cost, capable of meeting the demand of industrial large-scale production, and high in potential application value.

The invention relates to a latex dispensing glove and a preparation method thereof. The glove includes a glove liner and an outer glue dipping layer. The glove liner is knitted from nylon, terylene, cotton or rayon fiber through seamless knitting, the outer glue dipping layer is a latex outer glue dipping layer, and the surface of the outer glue dipping is distributed with friction substances made of a polymer material; and the latex outer glue dipping layer consists of the following components: oil and solvent resistant rubber or polymer alloy material or electrostatic material or high temperature resistant material, a curing agent and san accelerator. According to the invention, friction substances made of the polymer material on the glove surface isolate the contact between glove and a held object to give more secure and reliable protection on the hand, and also increase the frictional force between the glove and the held object, so that the glove is safe and convenient for application, and can be used for hand protection under different conditions.

The invention relates to ganoderma lucidum fibre with the function of health care and a preparation method thereof. The fibre contains traditional Chinese medicine ganoderma lucidum components; the preparation method comprises the following steps: adding the ganoderma lucidum components into regenerated cellulose fibre spinning liquid, regenerated protein fiber spinning liquid, terylene fibre spinning liquid, orlon fibre spinning liquid and nylon 6 or nylon 66 fibre spinning liquid and adopting conventional spinning to obtain the ganoderma lucidum fibre. The fibre can reinforce the resistance and immunity of an organism, eliminates in-vivo free radicals, resists radiation and has the effects of preventing and treating diseases, building the body, strengthening the body and prolonging the life; the invention has simple preparation method and is suitable for industrialized production.

The invention discloses a formaldehyde-free flame retardant for viscose fibers, which is a phosphate esters flame retardant of synthesizing acid amide by carrying out Michael addition reaction of phosphite ester and acrylamide compounds, and carrying out the reaction of generated acid amide functional groups and epoxy compounds. The structural formula of the flame retardant is shown above. The flame retardant, together with a cross-linking agent, a penetrating agent, a catalyst and a urea, is prepared into a flame retardant finishing liquid in proportion with water for fire retardant treatment of viscose fibers. The viscose fiber fabric after treatment has the advantages of good flame retardant effect, high durability, good hand touch, little strength reduction, good whiteness and the like.

The invention discloses a treatment method of textile, comprising the following steps: adopting nanometer powder as photocatalyst to prepare photocatalysis bath, adding in a batch or continuous reactive unit, introducing air or oxygen continuously under ultraviolet light with the wavelength of 200-400nm to pretreat textile green body through photocatalysis, and then performing conventional one bath process treatment under gentle condition to realize the desizing and bleaching pretreatment of textile. The invention adopts active substances such as strong oxidizing radicals and the like which are generated through the photocatalysis of nanometer material as the pretreating agent of sizing agent of textile and natural impurities so that the reaction can be performed at room temperature and normal pressure and the photocatalysis pretreating agent can be used repeatedly; in addition, by using wet chemical treatment under gentle condition, large dosage of chemicals in traditional pretreatment technology can be avoided. Therefore, the textile green body pretreatment technology provided by the invention can reduce the production and emission of pollutants and is characterized by simple device and technology, high efficiency, and energy-saving and emission reduction.

The invention belongs to the technical field of energy-saving and environment-friendly materials, and particularly relates to powder removal prevention aerogel composite insulation felt used for building and industrial energy saving and insulation. The insulation felt comprises an aerogel wet gel solution and a fiber framework material at a weight ratio of (2-30):1. A preparation method of the insulation felt comprises the steps of immersing the fiber framework material into the aerogel wet gel solution according to the aerogel wet gel solution and the fiber framework material at the weight ratio of (2-30):1 to achieve saturation adsorption of the aerogel wet gel solution by the fiber framework material, and then performing drying to obtain the insulation felt. The insulation felt overcomes the problems of high cost and easy powder removal of the existing insulation felt, and is better in performance and more environment-friendly.

A binuclear metal phthalocyanine load fibrous material eliminates the formaldehyde and the preparation method. It uses the acid radical chloro- binuclear metal phthalocyanine to respond in the organic solvent with the fibrous material, to obtain the binuclear metal phthalocyanine load fibrous material conjoint by covalent that can catalyze oxidation formaldehyde; Its preparation method is: Uses the acid radical chloro- binuclear metal phthalocyanine to dissolve in the right amount organic solvent, after treating the full dissolution, joins after the vacuum drying the textile fiber, the agitation and responded under certain temperature, then takes out the textile fiber with the distilled water cleaning, carries on processing with the alkaline solution, finally uses the distilled water to clean, drying then; The catalyzed oxidation formaldehyde's method is: According to the formaldehyde density's difference, the name takes the ration the binuclear metal phthalocyanine load fibrous material, lays aside it in contains in the formaldehyde environment, carries on the effective catalyzed oxidation to the formaldehyde; And in the formaldehyde catalyzed oxidation processing step, the use temperature range is: - 50degree C-50degree C; The use barometric pressure scope is: - 0.01-10 standard atmospheric pressure; It has good effect to eliminate the formaldehyde, and can duplicate uses, raised its use factor, the preparation equipment is simple, the craft was simple and easy to operate.