109 results about "Fibre composition" patented technology

A spontaneously degradable fiber excellent in bulkiness, softness, stretchability and feeling, which comprises (A) a low heat-shrinkable fiber component comprising a high crystalline aliphatic polyester and (B) a high heat-shrinkable fiber component comprising an aliphatic polyester, e.g., a low crystalline or non-crystalline aliphatic polyester, and a block copolymer or a mixture the main component of which is an aliphatic polyester and which comprises a high-melting component and a low-melting component. Further, fibers excellent in self-crimpability or self-adhesion property and dividable fibers are obtained by suitably combining the fiber components (A) and (B) to form conjugated fibers or composite yarns.

The present invention discloses a kind of paper made of collagen fiber and its processing method. The paper made of collagen fiber includes fiber component and non-fiber component; said fiber component is formed from 10-100 wt% of collagen fiber and 0-90 wt% of other fiber for making paper. Its processing method mainly includes the following steps: screening raw materials, liquid defibrination, cleaning, rinsing, and opening by using liquor, dewatering and drying, opening and removing impurity, carding, pulping and papermaking.

The invention relates to blended yarn which contains wool, pearl fiber, modal fibre and viscose, and a machining method thereof. The blended yarn is composed of wool, pearl fiber, modal fibre and viscose with the mass ratio as the following: wool 10-15%, pearl fiber 20-30%, modal fibre 30-35% and viscose 25-30%. The blended yarn can be in pure white, bleached to be white, gray, apricot, pinkish purple, or in other colors. The performance index meets the requirements that the single yarn rupture strength is 12.5-19.5cN/tex, the CV value of single yarn rupture strength is less than or equal to 6.0% and the CV value of yarn evenness variation coefficient is less than or equal to 15%. The processing method includes the following steps: dyeing according to the tinctorial pattern of a matching card (used for producing colored yarn), manually mixing the cotton and baling; grabbing the cotton through a disc, blending and opening the cotton, opening the cotton through carding pins, feeding cotton in the vibrating mode, single beater scutching, combing the cotton, drawing, roving, spinning, winding and packing.

The invention relates to a composition comprising cellulosic fibres having an average degree of substitution of anionic groups of from 0.001 to 0.25, and DEG a length weighted mean fibre length up to 1,100 [mu]m and a length weighted mean fibre width over 10 [mu]m, or DEG a length weighted mean fibre length up to 1,100 [mu]m, and wherein at least 50 % by weight of the cellulosic material is insoluble in water, or DEG a length weighted mean fibre length / width ratio up to 30, or DEG a length weighted mean fibre width over 35 [mu]m. The invention also relates to a composition comprising cellulosic fibres having a specific surface area of at least 1.5 m2/g, a length weighted mean fibre length / width ratio up to 30, and a dry solids content of at least 5 % by weight, based on the weight of the composition, or up to 30 % by weight, based on the total weight of the cellulosic fibres, of cellulosic fibres with a length weighted mean fibre length up to 100 [mu]m. Method of producing a composition comprising cellulosic fibres which comprises subjecting cellulosic fibres to chemical treatment and mechanical treatment, wherein the chemical treatment comprises treating cellulosic fibres with (i) at least one agent containing a carboxyl group, optionally substituted, (ii) at least one oxidant and at least one transition metal, or (iii) at least one nitroxyl radical, and the mechanical treatment comprises subjecting cellulosic fibres to extrusion with a twin-screw extruder or a planetary roller extruder. The invention also relates to a method of producing a composition comprising cellulosic fibres which comprises subjecting cellulosic fibres having an average degree of substitution of anionic groups of from 0.001 to 0.25 to extrusion. The invention also relates to a composition comprising cellulosic fibres obtainable by the methods, a process for producing a cellulosic pulp mixture which comprises mixing the composition with cellulosic pulp, a cellulosic pulp mixture obtainable by the process, and the use of the composition and cellulosic pulp mixture as an additive in the production of paper and board, processes for producing paper and board in which the composition or cellulosic pulp mixture is used, paper and board obtainable by the processes, and various uses of the paper and board.

Determining diffusivity of multiple diffusion components within a tissue using diffusion magnetic resonance data representing a volume of the tissue. A plurality of candidate fibers having a direction is defined within the volume. A possibility coefficient is calculated by a processor for each candidate fiber of the plurality of candidate fibers based on the magnetic resonance data and the direction of the candidate fiber. The possibility coefficient represents a likelihood that the candidate fiber exists in the volume. Candidate fibers associated with a possibility coefficient greater than a threshold value are selected by the processor to create one or more probable fibers. For each probable fiber of the one or more probable fibers, an axial diffusivity indicating a diffusion of water in the direction of the probable fiber and a radial diffusivity indicating a diffusion of water perpendicular to the direction of the probable fiber are calculated by the processor. The diffusivity of isotropic diffusion component and the volume ratios of each fiber component and isotropic components are calculated.

A process and equipment for preparing great non-crystal/fibre composition block is disclosed. Its equipment features that its heater is composed of a Mo layer and 6 reflecting layers, the mould made of quartz glass or graphite is arranged in said heater and is pneumatically drawn by a drawing mechanism under it, a cooling water tank is under the mould, and a dual-wall design is used for flowing cooling water between two walls and holding Ga-In or Ga-In-Sn alloy in the center. Its advantages are high control capability, less pollution to molten body and low cost.

The invention discloses organic hollow superfine fiber composite preparing and application. It adopts direct weaving or match-plate victim method to manufacture organic hollow superfine fiber with 15 nm-20 nm inside diameter and 50 nm-500 nm outside diameter. It can be applied to separating, protecting, antibacterial, catalyzing, sensing, decorating, structure support, biological consistent, conducting, repairing, and intelligence responding fields, and etc. It can greatly increase the material whole performance and reduce cost. It has the advantages of convenient manufacturing, low cost, and high quality price ratio.

The invention relates to a cellulosic composition comprising fibres having a length weighted average fibre length ("LWAFL") of 0.25 to 0.40mm.

The invention relates to a quantitative detection instrument and method for cashmere fiber and wool fiber blending. A micro-gloss meter, a microscope and a digital camera are mounted on a three-dimensional displacement automatic control stage. The stage realizes automatic and precise action and can be positioned The fiber photographed by the microscope corresponds to the fiber photometry measured by the micro-gloss meter; the micro-gloss meter can accurately measure the gloss of each fiber; the computer and image processing system adopts advanced image processing technology to accurately measure, Calculate the fiber diameter and scale density; the information processing system comprehensively evaluates the data collected about fiber diameter, gloss, fiber axial uniformity and scale density, and accurately judges the fiber composition. The invention adopts high-resolution image real-time capture, two-dimensional workbench automatic feed, automatic continuous rapid measurement, improves work efficiency, has high degree of automation and intelligence, simple operation, and changes the differences in test results caused by human factors.

The invention discloses a chemical corrosion-resistant blended fabric. The chemical corrosion-resistant blended fabric is formed by blending and weaving four types of fabric fibers of Teflon fibers, polyphenylene sulfide fibers, chlorine-containing fibers and aromatic polyamide fibers; the chemical corrosion-resistant blended fabric is formed by the components in percentage by weight of 35-39% of Teflon fibers, 20-24% polyphenylene sulfide fibers, 18-22% chlorine-containing fibers and 15-27% of aromatic polyamide fibers. The fabric is formed by blending and weaving the four types of fabric fibers of Teflon fibers, polyphenylene sulfide fibers, chlorine-containing fibers and aromatic polyamide fibers, and has excellent chemical corrosion resistance, flaming retardance and high temperature resistance and is high in chemical safety protection level and the woven fabric is high in strength and abrasion-resistant.

A high-modulus glass fiber composition, and a glass fiber and a composite material therefrom. The glass fiber composition comprises the following components in weight percentage: SiO₂ 55.7 to 58.9%, Al₂O₃ 15 to 19.9%, Y₂O₃ 0.1 to 4.3%, La₂O₃ less than or equal to 1.5%, CeO₂ less than or equal to 1.2%, CaO 6 to 10%, MgO 9.05 to 9.95%, SrO less than or equal to 2%, Li₂O+Na₂O+K₂O less than or equal to 0.99%, Li₂O less than or equal to 0.65%, Fe₂O₃ less than 1%, TiO₂ 0.1 to 1.5%; wherein, the range of the weight percentage ratio C1=Y₂O₃/(Y₂O₃+La₂O₃+CeO₂) is greater than 0.6. The composition can greatly improve the elastic modulus of glass, significantly reduce liquidus temperature and forming temperature of the glass, greatly reduce the crystallization rate of molten glass and bubble amount under the same conditions, and therefore is more suitable for large-scale tank furnace production of high-modulus fiberglass with low bubble amount.

Melt formed inorganic fibers are disclosed having the composition:—

Fibers of like composition having K₂O greater than 12 mol % are also encompassed.

The invention relates to a preparation method for a high-toughness and wear-resistant cement fiber board, belonging to the technical field of preparation of building materials. The preparation methodprovided by the invention has the following steps: subjecting rice straw and rice leaves used as raw materials to a reaction, carrying out filtering so as to obtain filter residue, then soaking the filter residue with acetic acid, carrying out ultrasonic oscillation, adding magnesium chloride so as to prepare a mixed solution, mixing the mixed solution, glucose and rice husks, carrying out fermentation and high-temperature treatment, then mixing a high-temperature treatment product, cement and water, and carrying out hot pressing, drying and discharging so as to obtain the high-toughness and wear-resistant cement fiber board. According to the invention, all organic fiber components in the rice straw and the rice leaves are separated; meanwhile, through introduction of magnesium ions, strength and toughness of plant fiber are improved; fiber components of the rice straw and the rice leaves are partially hydrolyzed to generate a saccharide compound and organic carboxylic acid, so the bonding effect among all components in a cement fiber board is improved; and through high-temperature treatment, the fiber is partially carbonized, so mechanical strength and toughness of the cement fiber board are further improved, and good application prospect is achieved.

The invention discloses a ramie knitted fabric, comprising ramie blended yarns formed by blending ramie fibres and other fibres according to a certain ratio, wherein the other fibres comprise one or two of terylene fibres, tencel fibres, corn fibres and chinlon fibres; the ratio of the blending percentages by weight of the ramie fibres to the other fibres is 20-35%: 65-80%; and the specification of the ramie blended yarns is 20-42 yarns/2, and the twist coefficient is 560-700. Fibre ingredients with a good toughness such as corn fibres, tencel fibres and terylene fibres are variously combined, matched and blended with ramie fibres in the invention via the method aforementioned, so as to weaken the rigidity of the blended yarns and enhance the feasibility of the yarns for knitted fabric ramie; and the service ability problems such as strong prickle sensation and bad wrinkle resistance of a fabric are improved in a precondition of ensuring the various excellent performances of ramie.

The present invention concerns glass fibre composition comprising the following oxides: Si0₂: 57.5-59.5 wt. % AI₂O₃: 17.0-20.0 wt. % CaO: 11.0-13.5 wt. % MgO: 8.5-12.5 wt. % wherein the sum of Na₂O, K₂O, and TiO₂ is at least 0.1 wt. % and Li₂O≦2.0 wt. %, all amounts being expressed in weight % with respect to the total weight of the composition. It also concerns composite materials reinforced with such fibres, used in applications such as wind(a) mill blades, pressure vessels, components in the automotive, machinery, aerospace applications and such products produced therewith, and wherein the temperature difference, ΔT, defined as the difference between the temperature, T3, at which the composition has a viscosity of 10³ Poise and the liquidus temperature, T_liq, is at least 50° C.

The present invention provides a glass fibre composition, a glass fibre and a composite material therefrom. The glass fibre composition comprises the following components expressed as percentage by weight: 53-64% SiO₂, greater than 19% and lower than 25% Al₂O₃, 0.05-7% Y₂O₃+La₂O₃+Gd₂O₃, not greater than 1% Li₂O+Na₂O+K₂O, 10-24% CaO+MgO+SrO, 1.5-12% CaO, lower than 2% TiO₂, lower than 1.5% Fe₂O₃. Said composition can not only significantly improve the elastic modulus and chemical stability of the glass, but also overcome the technical problems in the manufacture of traditional high-performance glasses including high risk of crystallization, fining difficulty of molten glass and production efficiency difficulty with refractory-lined furnaces, significantly reduce the liquidus and forming temperatures and greatly reduce the crystallization rate under the same conditions, thus making it particularly suitable for production of high-performance glass fibre with excellent chemical stability in refractory-lined furnaces.

The invention discloses a novel moisture-absorbing and breathable blend fabric. The novel moisture-absorbing and breathable blend fabric is blended and woven of Coolmax fibers, Shengfeng pearl fibers, bamboo charcoal fibers and kapok fibers. The novel moisture-absorbing and breathable blend fabric comprises the following fabric fiber components in percentage by weight: 25-29 percent of Coolmax fibers, 17-21 percent of Shengfeng pearl fibers, 20-24 percent of bamboo charcoal fibers and 26-38 percent of kapok fibers. The novel moisture-absorbing and breathable blend fabric is blended and woven of the Coolmax fibers, the Shengfeng pearl fibers, the bamboo charcoal fibers and the kapok fibers; the woven fabric is soft, comfortable, moisture-absorbing and breathable to wear and has the characteristics of health care, beauty maintaining and skin care.

The present invention provides a glass fiber composition, glass fiber and composite material therefrom. The glass fiber composition comprises the following components expressed as percentage by weight: 58-63% SiO₂, 13-17% Al₂O₃, 6-11.8% CaO, 7-11% MgO, 3.05-8% SrO, 0.1-2% Na₂O+K₂O+Li₂O, 0.1-1% Fe₂O₃, 0-1% CeO₂ and 0-2% TiO₂, wherein a weight percentage ratio C1=(MgO+SrO)/CaO is greater than 1. Said composition greatly improves the refractive index of glass, significantly shields against harmful rays for humans and further reduces glass crystallization risk and production costs, thereby making it more suitable for large-scale production with refractory-lined furnaces.