1426 results about "Textile industry" patented technology

The invention provides a kind of super imitation cotton polyester filament, comprising polyester FDY yarn and superfine polyester POY yarn, polyester FDY yarn and superfine polyester POY yarn are composited together through false twist deformation processing, and the polyester FDY yarn has a fineness of 0.5-1.5D, semi-dull polyester FDY yarn with elongation at break of 25%-35%, the semi-dull polyester FDY yarn is a tow composed of several monofilaments, and the cross-sectional shape of the monofilament is cross-shaped; Superfine polyester POY yarn is full-dull superfine polyester POY yarn, the fineness of the full-dull superfine polyester POY yarn is 0.5-1.5D, and the elongation at break is 100%-135%. It is a tow composed of several monofilaments, and the cross-sectional shape of the monofilaments is circular. The beneficial effect of the present invention is that its softness, water absorption, moisture permeability and quick-drying property are all superior to those of pure cotton fiber, which can achieve the purpose of replacing cotton fiber, greatly reducing the dependence of the textile industry on natural cotton, and alleviating The problem of shortage of cotton resources.

An apparatus and method for plasma finishing of fibrous materials including paper and knitted, woven and non-woven fibrous substrates such that desired characteristics are imparted are described. The method includes depositing a monomer comprising at least one fluorocarbon monomer with chemical additives, as required, at atmospheric pressure onto the paper or knitted, woven or non-woven substrate; exposing the monomer on a single surface of the fibrous material to an inert gas, atmospheric-pressure plasma, thereby causing polymerization of the monomer species; and repeating this sequence using multiple sequential deposition and plasma discharge steps to create a layered surface having durability against abrasion for both water-based laundry methods and dry-cleaning methods, and normal wear, without affecting the feel, drape, appearance or breathability of the substrate material. The present method uses a high-power, continuously operating plasma that is 10⁴ times more powerful than the prior art plasma sources utilized in the textile industry, and produces a durable finish with between 0.5 and 2 s of plasma exposure. This is sufficiently rapid to meet commercial fabric processing throughput, and repeated cleaning of the electrodes is not required.

The invention discloses a composite reagent for treating recycled water of printing and dyeing wastewater and an application method of the composite reagent. The composite reagent comprises the following components by weight percent: 20% to 70% of aluminum salt coagulant, 5% to 30% of iron salt coagulant, 5% to 40% of mineral material and 5% to 45% of activated carbon. The method comprises the following steps: preparing the composite reagent for treating the recycled water of the printing and dyeing wastewater into powder or an aqueous liquid in which the content of effective components accounts for 5% to 30%; regulating a pH value of effluent in a printing and dyeing wastewater biochemical system to be within 3 to 9; adding the powder or the aqueous liquid of the composite reagent into the effluent in the printing and dyeing wastewater biochemical system under the condition that the adding quantity of the effective components is between 20mg/L and 1000mg/L after the pH value of the effluent is regulated; and stirring for 0.2 to 2 hours and then standing so as to obtain the recycled water conforming to the water quality standard in textile industry. According to the method, macromolecular colloidal pollutants in the biochemical effluent of the printing and dyeing wastewater, which are difficult to degrade, can be removed by utilizing the coagulation/flocculation performance of aluminum salts and iron salts in the composite reagent; and meanwhile, soluble inert pollutants in the wastewater are removed by utilizing the adsorbability of the activated carbon and the mineral material in the composite reagent.

The present invention relates to a pretreatment one-bath continuous production process before printing and dyeing cotton and blended fabric in dyeing and finishing production of textile industry. Three steps of desizing, refining and bleaching can be combined into one steop to implement, it utilizes biological enzyme and chelate dispersant WS to form the high-effective green pretreatment agent, adds hydroperoxide to prepare treatment liquor. The fabric can be undergone the processes of pad-steaming or pad-thermodepositing treatment on the continuous steaming long carriage, water-washing and drying or undergone the processes of dip dyeing on overflow dyeing machine or dip dyeing machine, water-washing and drying.

The invention relates to a production method for preparing a dissolving pulp by an oxygen-dissolving and continuous-cooking method, which applies the preparation of cotton linters in the production of viscose fibers in the textile industry, and the method comprises the following steps of: I. cotton linter pretreatments: including cotton linter loosening, cyclone separation and dust removal, feeding, two-roll grinding treatment, etc. to the cotton linters by a two-roll pulping machine; and II. oxygen dissolving and continuous cooking: a horizontal continuous cooking digester is adopted to realize the continuous, fast and low-pollution preparation of dissolving cotton pulp through the actions of high temperature, alkali, oxygen or hydrogen peroxide. The horizontal continuous cooking digester includes a pre-reaction bin, a two-roll gauge, a feeding screw, a T-shaped tube, a continuous-cooking tube and a cold discharge device. The method can effectively solve the problems of: cutting, tearing and cell primary wall breakage to the cotton linters by dry method after feed preparation, physical and chemical stripping to mass impurities in the cotton linters, fast accumulation reduction of the cotton linters in a continuous-cooking device and the purification of alpha cellulose under fast accumulation reduction, recycling of waste heat in the production link, and reduction of total amount of COD in a black liquor, and the method has advantages of even cooking and short cooking cycle.

The invention discloses a method and a system for preparing a nanofiber coating on the surface of a yarn or a fiber bundle and belongs to the field of the textile industry. The method includes: arranging a spinning sprayer and a collector oppositely by a certain distance so that the yarn or the fiber bundle passes through between a nozzle of the spinning sprayer and the collector; continuously supplying spinning solution into the spinning sprayer by the aid of an automatic solution delivery device, enabling the collector to be grounded, applying high-voltage direct current on the spinning sprayer, and generating electric field force between the spinning sprayer and the collector; and controlling the high-voltage direct current on the spinning sprayer, enabling the electric field force between the spinning sprayer and the collector to be larger than surface tension of the spinning solution at the nozzle of the spinning sprayer, and enabling the spinning solution in the spinning sprayer to be sprayed out of the nozzle of the same by jet flow to be coated on the surface of the passing yarn or the passing fiber bundle so that a nano coating is formed, and the yarn with the nano coating formed on the surface is a prepared nano fiber. The method is simple in process steps, good in controllability and capable of producing nano fibers uniform in diameter distribution and excellent in performance with low cost.

The invention discloses a polyose nanometer material possessing antibiotic function and preparing method and application, which comprises the following steps: choosing water-soluble polyose material incorporating carboxy group or sulfonic group as basis material; loading metallic ion possessing bacterial inhibition active in water solution; setting metallic ion load capacity at 10-500mg/g and bacterial inhibition active at 99.9%; centrifugal separating; ultrasonic dispersing; freezing or spraying; drying; getting end product with particle diameter at 20-800nm. This invention can be used to textile industry, animal husbandry and medicine domain as antiviral drug.

The invention relates to a viscose staple fiber with high white strength and fine denier and a production process thereof, which belong to the viscose staple fiber and the production method of the textile spinning industry and the non-woven fabric industry. Its raw materials and weight percent content are: 86.7-92 percent of cellulose fiber, 7.7-13 percent of water, and 0.15-0.30 percent of oil agent. The raw materials are impregnated, squeezed, yellowed, spun, drawn, bundled, scoured, bleached twice with hydrogen peroxide, and dried to make finished products. The product of the present invention has finer denier, higher strength, higher yarn count and higher strength, and the garment fabric has higher strength, strong abrasion resistance, delicate hand feeling, wrinkle resistance and resistance to multiple deformations than ordinary viscose of the same process. Short fiber processing clothing fabrics and other advantages. High-count yarn products have thinner fabrics and lower grammage. The area of ​​fabrics processed from raw materials of the same weight is increased and the cost is reduced.

The invnetion relates to a spinning fiber rod comprised of 5-100% collagen fiber and residual textile fiber. Wherein, the process method comprises: screening material, dipping, defibering, degreasing, cleaning, dewatering, drying, opening to remove impurity, mixing, carding, and drafting. This invention can obtain material from wide source, has well applicability, high tensile strength, well moisture/oil absorption properties, and fit to spread in textile industry.

The invention provides a new chitosan derivate-chitosan biguanide muriate, its preparation and usage, in which, the repeat unit is 2-biguanide glucose muriate, the substitution degree of guanidine is 15-50%, and the molecular weight is 0.5-25 ten thousand. This invention uses the reaction of chitosan and dicyandiamide to prepare chitosan biguanide muriate, and has advantages of mild reaction conditions and fewer side effects. The product has good antibacterial activity and water solubility, and can be widely used in medicine, textile industry, agriculture and other fields.

The present invention provides an insertion, deletion and/or substitution mutein of wild-type Trichoderma reesei β-mannanase having enhanced thermostability, proteolytic stability, specific activity and/or stability at low pH, a nucleic acid molecule encoding said mannanase mutein, a composition comprising said mannanase mutein; a method for its preparation, and its use for food and feed processing, for coffee extraction and the processing of coffee waste, as a supplement to food and feed, for enzyme aided bleaching of paper pulps, as bleaching and/or desizing agent in textile industry, for oil and gas well stimulation by hydraulic fracturing, as detergent, for removal of biofilms and in delivery systems, or for the processing of renewable resources intended for the production of biological fuels.

A multispectral imaging color measurement system, comprising a dark room, a sample platform and an imaging device for capturing said object being measured; a controllable illumination device, a filter wheel unit, an imaging signal processing unit and an electronic control unit. A method for processing imaging signals of the multispectral imaging color measurement is also proposed. The multispectral imaging color measurement system and the method for processing imaging signals thereof can overcome the inaccuracy of traditional digital imaging systems and the limits of spectrophotometer systems and provide users in the textile industry with highly accurate color measurement and evaluation.

The invention relates to a viscose fiber produced by utilizing mint and the process engineering thereof. The process includes: mint preparing, cropping, screening, washing, pre-treating, boiling, desanding and concentrating, chloridizing, alkali refining, bleaching, acid treating, desanding and concentrating, papermaking, dipping, pressing, crushing, maturing, yellowing, rubbing, dissolving, filtrating, debubbling, filtrating, spinning, drafting, severing, post-treating, drying, and packing; in the production process, a relaxative pulp technology is adopted, a preservative agent is added, and an enzyme treatment working procedure is added. The invention utilizes mint as the raw material to produce the viscose fiber, which is a creation of applying mint in the textile industry; and the original special matter of the mint, menthol and menthone, are kept, as well as the characteristics of sterilization, balminess, coolness, environmental protection, mosquito repelling, and so on; so that the fiber products thereof have the natural refreshing healthcare function and create a novel field for the development of the viscose fiber and the functional products thereof.

The invention relates to a high-tenacity and low-tension spinning device, which is used for ring spinners in textile industry. In the invention, a frame member is arranged along the length direction of a ring spinner in the middle of a spinning section between a front jaw and a yarn guide hook, a false twisting unit arranged corresponding to a spindle is fixed on the two borders of the frame member by two bearings and makes tangential transmission by a driving belt driven by a motor, and a yarn tension damping needle rod is arranged in the false twisting unit. By using the invention, the spinning tenacity is greatly improved, the spinning tension is reduced, and the spinning tension difference of large cop, middle cop and small cop is reduced, thereby realizing low-tension spinning; yarn filoplume is reduced, rubber roller is not wound by fibre frequently, and flyings are reduced, thereby improving spinning environment and spinning quality; heavy twist torsional moment is featured, the device can be applied to yarn with bigger hardness and cruder fibre, fibre material scope is enlarged, and raw material cost is reduced; and installation of the low-tension spinning device keeps the mechanism of the traditional ring spinners unchanged and is fit for modification of ring spinners for cotton/yarn/ramie/silk spinning.

The invention relates to polysulfonamide core-spun and wrapped composite yarns produced in the textile industry. Core-spun yarns consist of core yarn polyester yarns and externally-wrapping polysulfonamide fibers, and flame-retardant viscose filaments wrap the core-spun yarns. A conditioning friction tight composite spinning device for the composite yarns comprises a pair of dust cage friction false twisters corresponding to each spinning spindle, wherein a dust cage consists of two thin-wall sleeves and is fixed on an internal air suction pipe; the internal air suction pipe is connected with a main air suction pipe through a rubber pipe; the main air suction pipe is connected with a negative pressure fan; a conditioning groove is formed above the dust cage; a core yarn tensioner and a core yarn bobbin are arranged above a front roller and a front rubber roller; and a wrapped yarn tensioner and a wrapped yarn bobbin are arranged above a yarn guide hook. The invention has the advantages that: the polysulfonamide core-spun and wrapped composite yarns have a unique structure, a few hairs and high strength and can replace the conventional plied yarns, doubling and twisting processes are eliminated, the ration of coarse yarns can be improved by 40 percent compared with that of the conventional process, the tearing strength of the prepared fabric can be improved, and the structure of a ring spinning frame is not changed when the device is adopted.

The invention relates to a preparing method of a high-strength regenerated cellulose fiber. The preparing method of the high-strength regenerated cellulose fiber is characterized by comprising the steps of preparing cellulose sulphonate, preparing a spinning solution, spinning, conducting drafting and postprocessing. The preparing method is simple in technology and convenient to carry out. Compared with a traditional regenerated cellulose fiber, the high-strength regenerated cellulose fiber obtained through the preparing method is high in dry and wet strength and has a good spinning property; in addition, physical and mechanical properties of the fiber are excellent, the dry breaking strength is 3.40 CN/dtex or above, the dry elongation at break is 13-16%, the wet breaking strength is 2.0 CN/dtex or above, and the wet breakage modulus is 0.45 CN/dtex or above. The high-strength regenerated cellulose fiber can be applied to textile industries of textile and garment materials, underwear and the like.

The invention discloses an etherified - cross bond - pregelatinized ternary composite modified starch, its preparing process and application, wherein the product is prepared through the simultaneous process of etherification, cross bonding and pre-gelatinization denaturization to the starch, the product can be used for thickening and stabilizing the high acid, high salt and frozen food in food-processing industry, and also as the sizing agent in paper making and textile industry.

The invention relates to a method for conducting wool textile anti-felting treatment through a two-bath process by using imidazolium chloride ionic liquid/protease, belonging to the application field of wool fabric dyeing and finishing in the wool textile industry. The method is characterized in that chloroform/methanol is used to extract impurities on the surface of the fabric first, then the strong dissolving/swelling capacity of the imidazolium chloride ionic liquid is used to modify the surface layer of wool yarn scales and finally protease is used to trim the fabric to obtain the goal of improving the anti-felting effect of the wool fabric treated by using protease. Moreover, the ionic liquid used for pretreatment can be repetitively utilized after the ionic liquid is distilled under reduced pressure, so the environmental pollution is reduced. The invention solves the problems that the anti-felting effect of the wool fabric treated by using the existing single protease is bad and serious pollution is caused by the DCCA/protease anti-felting technology.

The invention relates to an aspergillus oryzae mutant bacterial strain giving high yield of neutral protease and a liquid fermentation method thereof. The enzymatic activity of the neutral protease produced by the aspergillus oryzae bacterial strain is more than 20,821 u/mL. The liquid fermentation method for the neutral protease by using the aspergillus oryzae mutant bacterial strain CGMCC 6848 comprises the following steps: 1), seed culture; 2), liquid fermentation; and 3), extraction and refining of the neutral protease. According to the liquid fermentation method for the neutral protease, the fermentation activity is 25,000 u/mL, the residual enzyme activity is 91% after the produced neutral protease is subjected to heat preservation at the temperature of 40 DEG C for 1h, and the aspergillus oryzae mutant bacterial strain has good heat resistance and can be applied widely in industries such as the food industry, the feed industry and the textile industry.