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139 results about "Cuprammonium rayon" patented technology

Cuprammonium rayon is a rayon made from cellulose dissolved in cuprammonium solution. It is produced by making cellulose a soluble compound by combining it with copper and ammonia. The solution of this material in caustic soda is passed through the spinneret and the cellulose is regenerated in the hardening baths that remove the copper and ammonia and neutralize the caustic soda. Cuprammonium rayon is usually made in fine filaments that are used in lightweight summer dresses and blouses, sometimes in combination with cotton to make textured fabrics with slubbed, uneven surfaces.

Strength-improvable blended regenerated cotton yarn and preparation method thereof

The present invention discloses a strength-improvable blended regenerated cotton yarn which is characterized being prepared from the following raw material by weight: 30-33 parts of waste cotton fabrics, 15-17 parts of cotton yarn leftover material, 2-3 parts of glycerin, 8-10 parts of copper ammonia fibre, 3-4 parts of starch, 3-5 parts of nano-silica, 39-44 parts of polypropylene, 3-5 parts of nano-zinc oxide, 12-14 parts of liquid paraffin, 9-10 parts of nano-titanium dioxide, 1.5-parts of carboxymethyl cellulose, 1-2 parts of glyceryl stearate, and proper amount of water; the starch, the nano-silica and other components are used for prepare processing slurry to process waste cotton fabric renewable fiber, the strength and sunscreen resistance of the fiber are improved, then the waste cotton fabric renewable fiber is mixed with the copper ammonia fiber, and strength and hand feel of the fiber are improved by cotton carding; the strength-improvable blended regenerated cotton yarn is prepared by addition of the nano-titanium dioxide and the nano-zinc oxide-modified polypropylene staple fiber for blending, the strength of the cotton fiber is improved, and the strength-improvable blended regenerated cotton yarn has the characteristics of easy staining and grinding resistance.
Owner:SHUNTIAN SPINNING LIMITED

Water-washable silk composite fiber and preparation method thereof

Disclosed water-washable silk composite fiber is characterized by being prepared from the following raw materials in parts by weight: 18-22 parts of silk, 11-13 parts of wool, 4-7 parts of cuprammonium rayon, 6-8 parts of polyester fiber, 8-10 parts of newdal fiber, 10-12 parts of bast fiber, 0.6-1.1 parts of nanometer TiO2, 6-9 parts of aloe viscose fiber, 0.7-0.9 parts of hydroxypropyl methyl cellulose, 0.8-1.4 parts of polypropylenglycol diglycidyl ether, 100-110 parts of 1-butyl-3-methylimidazolium dibutyl phosphate, 110-120 parts of 1-ethyl-3-methylimidazolium diethylphosphate, 1-3 parts of radix aucklandiae, 2-4 parts of cortex moutan, 3-5 parts of an auxiliary agent, and proper amount of water. By adding cuprammonium rayon and nanometer TiO2, the silk composite fiber has performances of resisting ultraviolet, resisting static electricity, resisting water washing and the like; and additionally by adding aloe viscose fiber, the Chinese herbal medicines and other compositions, the prepared silk composite fiber has the characteristics of resisting bacteria, diminishing inflammation, light and soft texture, excellent air permeability, high strength and high elasticity, and thus the silk composite fiber is repeatedly cleanable and keeps comfortableness, and is not flat or sunk after being used for a long time.
Owner:TONGCHENG SHUANGLONG SILK

Production method of copper ammonia/viscose/linen cotton fiber blended fabric

The invention discloses a production method of a copper ammonia/viscose/linen cotton fiber blended fabric. According to the production method, selected warp and weft materials are as follows in parts by mass: 30-50 parts of copper ammonia fibers, 15-25 parts of linen fibers, 40-90 parts of viscose fibers, 20-40 parts of combed cotton and 8-18 parts of ultrafine fine denier polyester. A step of slashing in the production process comprises the specific steps: (1) mixing size: adding water into a size mixing bucket and raising the temperature of the water to 50 DEG C, adding a pre-dyeing agent, wherein the adding mass of the pre-dyeing agent is 15-18% of that of water, starting a stirrer and adding solid PVA (Polyvinyl Acetate) at the mass ratio of the solid PVA to the water of (1-4) to 80, raising the temperature to 90 DEG C, and stirring and dissolving to prepare slurry; and (2) sizing: sizing by adopting a slashing machine, wherein size in a size tank does not need to be heated. The yarns of the sizing procedure are subjected to sizing by adopting the PVA with the concentration which is not higher than 4%; the sizing rate is low, size skins are not easy to form by a sizing agent and desizing is easy to carry out by post-finishing; and meanwhile, the sizing agent can be stored after being prepared and can be used at any time in future, and does not need to be prepared when being needed, so that the energy and time are saved.
Owner:SUZHOU CHENHENG WEAVING

Dyeing method of interwoven fabric made of cuprammonium fibers and tencels

The invention discloses a dyeing method of an interwoven fabric made of cuprammonium fibers and tencels. The dyeing method comprises the following steps of: (a) an enzyme desizing procedure, (b) a water scrubbing procedure, (c) a refining procedure, and (d) a dyeing procedure. Compared with the prior art, the dyeing method has the following advantages that the water scrubbing procedure aims at cleaning the blots on the fabric surface of the interwoven fabric; and the refining procedure plays roles in not only fading the sizing agent and oil in the interwoven fabric and the blots on the fabricsurface, but also improving the hand feeling of regenerated fibers, enhancing dyeing permeability and color absorption uniformity and reducing color difference and color stain. By using the dyeing method, the plus material of the obtained interwoven fabric made of the cuprammonium fibers and the tencels has an appearance style of a real silk plus material, further can adequately embody the humidity management function of a tencel home textile plus material, and has an excellent skin affinity effect and a functional characteristic of inhibiting the breeding of bacteria. Due to the outstanding characteristics, the plus material of the interwoven fabric becomes one of the high-quality home texture plus materials known internationally at present.
Owner:SUZHOU JINKEDA TEXTILE SCI & TECH

Manufacturing method for boiling and sizing copper ammonia fiber/bamboo fiber anti-bacterial blended fabric

The invention discloses a manufacturing method for boiling and sizing copper ammonia fiber/bamboo fiber anti-bacterial blended fabric. Selected warp and weft materials are as follows in parts by mass: 35-40 parts of copper ammonia fiber, 40-90 parts of viscose fiber, 20-25 parts of cocoon fiber, 8-15 parts of bamboo fiber, 30-45 parts of cotton fiber and 8-18 parts of super fine denier polyester, wherein warp threads adopt a ratio of 92/2, and weft threads adopt a ratio of 48/1. A scutching procedure comprises a rough cleaning step and a fine cleaning step, wherein in the rough cleaning step, a bath ratio is 1:(30-50), neutral detergent is added, the dosage of the neutral detergent is 4-5g/L, the water temperature is 55-65 DEG C, and the washing time is 0.5-0.8 hour; in the fine cleaning step, the bath ratio is 1:(11-15), finishing agent solution of which the mass concentration is 26%-32% is added, the adding quantity of the finishing agent solution is 6-9g/L per litre water, the treatment time is 0.5-0.8 hour, and the fine cleaning temperature is 66-72 DEG C. According to the manufacturing method disclosed by the invention, the anti-bacterial performance of the copper ammonia fiber cannot be damaged, the comfort is better, meanwhile, the problems that a fiber molecule is loose in structure, large in moisture absorption and easy to deform and stretch can be effectively solved, and the problems of warp exposing, weft exposing and weak spots on fiber fabric can be prevented from happening.
Owner:SUZHOU CHENHENG WEAVING

Preparing method for copper ammonia fiber conductive textile

The invention relates to a preparing method for a copper ammonia fiber conductive textile. According to the preparing method, copper ammonia fibers serve as a base material, and polypyrrole layers and copper layers are deposited on the surfaces of the copper ammonia fibers in sequence. The specific technology comprises the steps of cleaning the copper ammonia fibers, carrying out polypyrrole in-situ chemical polymerization, carrying out self-assembly modification through a silane coupling agent, adsorbing cupric ions, reducing potassium borohydride, carrying out electroless copper plating and the like. According to the preparing method, the copper ammonia fibers serve as the base material of the conductive textile, and thus degradation of the materials and recovery and recycle of copper are facilitated. The copper ammonia fibers and conductive substances (polypyrrole and copper) are combined, the ammonia fibers are changed into a conductor from an insulator, and thus the application of the ammonia fibers is developed. The silane coupling agent can serve as a molecule bridge of the polypyrrole layers and the metal layers, and the reliability of products is improved. Conductive macromolecule chemical polymerization and chemical plating are combined, and thus the problems that a conductive textile prepared from macromolecule polymerization or chemical plating alone is poor in conductivity, low in shielding effect and the like are solved. The cost is low, the process is simple, and the degree of dependency on instruments and equipment is low.
Owner:FUDAN UNIV
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