A method of manufacturing a non-woven cloth
(57) Abstract:The invention relates to the field of light industry and can be used, for example, for the manufacture of technical non-woven cloth as a protective and insulating materials for drainage systems in land reclamation. A known method of manufacturing a non-woven cloth, including the preparation of raw materials, mixing, oiling, Rossiyane, itching, formation of the canvas and stitching canvas by igloprobivnye before the formation of non-woven cloth. The present invention provides a technical solution to increase the density and disruptive force nonwoven fiber by improving the process and making operations such as preparation of raw materials, mixing, forming and fastening canvas by hypoproteinemia, technological regimes with specific parameters in the claims. The use of new technology makes it possible to increase the density and explosive efforts of the obtained nonwoven fabric in 1,5 - 2 times. 1 table, 1 Il. The invention relates to the field of light industry and can be used, for example, for librational construction.A known method of manufacturing a non-woven cloth, including the preparation of raw materials, mixing, oiling, Rossiyane, itching, formation of the canvas and stitching canvas by igloprobivnye before the formation of non-woven cloth  However, this method does not provide the necessary performance, density, and the breaking load of the manufactured material.Solved technical challenge is the improvement of manufacturing non-woven cloth in order to increase its density and breaking strength (1.5 to 2 times).The technical result is achieved by a method of manufacturing a non-woven cloth, which includes operations for the preparation of raw materials, mixing, oiling, rasseyaniyu, itching, formation of the canvas, fastening it by hypoproteinemia to the formation of the nonwoven fabric, in which during preparation of the initial raw material to prepare a mixture of P from waste bulky yarn, waste flax and other wastes, which include (weight):
steep the ends 5 of 25
the ends of the rovings 10 40
the ends of the tape 15 45
recovered fiber 15 45,
and use the harness and the ends of the harness, the weight content of which is respectively P1 and P2 of wybir Westlaw mainly on the length L1 within L1 15 - 160 mm with the ratio of the content of P3 fibers of minimum length, which is chosen in the range of 0.1 P3/P is 0.8, and the content of P4 fibers with a maximum length is chosen in the range of 0.1 P4/P 0,9; in the process of formation, prepare the cake mix by adding the fleece in n number of layers, where n is 10 to 80, weight throw, m, selectable within 100 m 500 g; in the process of fastening canvas mainly by hypoproteinemia support ratio minimum h1 and the maximum h2 depths perforation within 0.3 h1/h2 1, and when the seal provides the frequency of perforation of the canvas, which is determined by the number of needles per unit area, the frequency of strikes needle cases N and velocity V of the filing of the canvas to puncture, which is selected within 10 (N x F)/V 2.5 to achieve a surface density of the canvas within q 0,15 1,5 kg/m2.A detailed description of the claimed invention should be carried out using the schema containing the serial execution of all the processes of manufacturing non-woven cloth, shown in the drawing.A method of obtaining a non-woven cloth consists of the following steps: cutting the harness 1, mixing 2, oiling 3, Rossiyane 4, itching 5, the formation of the canvas 6, the seal 7, the ready formation is relevant.Order to obtain non-woven fabrics as the original product are waste bulky yarn, linen, waste of own production and other, which are characterized by the following composition (by weight):
steep the ends 5 of 25
the ends of the rovings 10 40
the ends of the tape 15 45
waste of own production 15 45.In addition, in the process of obtaining canvases use of synthetic material in the form of a bundle and its ends, the weight content of which is respectively P1 and P2 is chosen in relation to the weight content of the remaining components P within 1 (P1 + P2 + P)/P 50, where P waste production. If the percentage of waste 100% of the length of the fibers prevents the formation of the canvas in the absence of long fibers, which is a bonding material, if this relationship goes beyond 50%, the process becomes economically disadvantageous. Moreover, the cutting ends of the rovings and harness perform primarily on segments of length L1 within L1 15 160 mm with the ratio of the content of P3 fibers minimum length selectable between 0.1 P3/P 0.8 and content P4 fibers with a maximum length of between 0.1 P4/P of 0.9, while if the value of P3/P > 0,8 and P4/P > to 0.9, then the percent is less than 0.1, all fiber will go to waste.The obtained fiber mix 2, Somaliweyn 3 and rasshiryayut 4, resulting in a get a homogeneous mixture of fibers, served on a carding machine to produce a uniform fleece 5. So manufactured prefabricated by the provisions of the fleece in n number of layers, where n is chosen in the range from 10 to 80 weight throw m in the range from 100 to 500 grams, with the number of shots per minute from 1 to 5, is formed in the canvas 6. The resulting canvas is sealed. The compaction process is carried out by hypoproteinemia over the entire area of the canvas and at a certain height needles, supporting the minimum ratio h1 and the maximum h2 depths perforation selected within 0.3 h1/h2 1. When the ratio h1/h2 < 0,3 does not occur compaction process, and when the value of this ratio is equal to greater than 1 is broken needles.An important role in sealing the canvas plays the frequency of perforation of the canvas, which depends on the number of needles per unit area F, the frequency of strikes needle cases n1 and speed V feed on canvas puncture, and is selected within 10 (n2 x F)/V 2,5.If the frequency of perforation of the canvas below the minimum value of the above correlation, there is provided the quality is by the quality of the canvas and requires significant energy consumption, that is not economically feasible.The whole process is carried out to achieve a surface density of leaf q in the range of 0.15 to 1.5 kg/m2.As studies have shown, this technical result is achieved only when interconnected using all essential features of the claimed object. This is confirmed, in particular, the following examples of their practical implementation, in the description which it is impractical to repeat in each example, the common information reflected in the formula and the description of the invention. It is better to lead with the description of examples of practical implementation of the declared object only quantitative information that distinguish one sample from another, which is suitable for easy comparison to be stated in the form of a table. To map the ability to achieve the technical result in each of the examples was necessary to use the parameter E, which is characterized by the ratio of data to improve the density and disruptive force non-woven cloth during the experimental implementation examples of the claimed technical solution and prototype.The bottom (example 1, table) and upper (predannyh, analysis and generalization of the known data mainly on the basis of approximation of the parameter E to the unit (E1 1,03, E2 1,02), and also taking into account other limit on the stated limits of the known circumstances. In the optimal case 4 implementation of the selected objects has been reached the highest value E4 2,0.When the output at the bottom (example 5) and upper (example 6) the values stated within the specified technical result, as follows from the table, not achieved (E5 0,96, E6 0,98). In any example 3 tables when the values of the essential parameters within the stated limits was achieved Subtotal technical result (E3 1,5).The achievement of the technical result provided additional advantages of the use of the declared object to improve performance, reduce energy costs, improve product quality. A method of manufacturing a non-woven cloth, including the preparation of raw materials, mixing, oiling, Rossiyane, itching, formation of the canvas and stitching canvas by igloprobivnye to the formation of the nonwoven fabric, characterized in that the process p and other the following composition, wt.Steep all 5 of 25
The ends of the rovings 10 40
The ends of the tape 15 45
Recovered fiber 15 45
using a harness and harness, for example, of synthetic fibers, the weight content of which is respectively P1 and P2 is chosen in relation to the weight content of the other components within 1(P1 + P2 + P)/P50, and cutting the fiber, mainly the ends of the tape and tow at length in the range of 20-100 mm with a ratio of fibers P3 0,1P3/P= 0.8, the content and P4 fibers with a maximum length of 0,1P4/P0,9, in the process of formation, prepare the cake mix with the number of plies fleece within 10 80, when the mass m of throw within 100 to 500 g, in the bonding process, mainly hypoproteinemia, maintain a minimum ratio L1 and L2 of the maximum depth of the perforations in the range of 0,3L1/L21 density hypoproteinemia canvas is selected depending on the number of needles per unit area, F the frequency of the strokes of the needle cases N and velocity V of the filing of the canvas to puncture within 1000(NF)/V2500000 before reaching the surface density of the canvas within the q=0,15-1,5 kg/sq. mA
FIELD: textile industry.
SUBSTANCE: three-dimensional nonwoven fibrous textile material is composed of netted woven carcass and layers of fibrous cloths arranged at both sides of carcass and mechanically attached thereto. Carcass is produced from thermoplastic weft threads with linear density of 29-72 tex and thermoplastic warp threads with linear density of 14-20 tex and surface density of 80-220 g/m2. Said threads are preliminarily subjected to shrinkage. Method involves applying onto melted netted woven carcass layers of fibrous materials and mechanically attaching said layer in alternation to each side; applying onto each side of carcass at least one layer of fibrous cloth and attaching it by needle stitching; subjecting nonwoven material to thermal processing at temperature of 80-1580C under pressure of 0.3-0.6 MPa for 40-120 min.
EFFECT: improved organoliptical properties and improved appearance of material.
FIELD: textile industry, in particular, versions of nonwoven fibrous material made in the form of needle stitched web.
SUBSTANCE: material is manufactured from mixture of high-melting point and various low-melting point fibers, with main fiber being two-component polyester fiber of "core-coat" type. Polymer of "coat" has melting temperature substantially lower than polymer of "core". According to first version, low-melting point fiber used is staple two-component polyester fiber of "core-coat" type having thickness of 0.4-1.0 tex, length of 50-90 mm and melting temperature of "coat" polymer of 105-115 C. High-melting point fiber is staple polyester fiber having thickness of 0.3-1.7 tex, length of 60-90 mm and melting temperature of 240-260 C. Ratio of fibers in mixture, wt%, is: staple two-component polyester fiber of "core-coat" type 30-70; staple polyester fiber the balance to 100. According to second version, nonwoven fabric additionally comprises auxiliary staple polypropylene fiber having thickness of 0.6-1.7 tex, length of 50-90 mm and melting temperature of 150-160 C. Ratio of fibers in mixture is, wt%: staple two-component polyester fiber of "core-coat" type 30-70; staple polypropylene fiber 5-20; staple polyester fiber the balance to 100.
EFFECT: improved operating properties and form stability of parts manufactured from nonwoven fibrous material under conditions of changing temperature loadings.
3 cl, 1 tbl, 5 ex
FIELD: chemical and light industry, in particular, production of viscose staple fiber containing antibacterial preparation for manufacture of non-woven material used for manufacture of air filters.
SUBSTANCE: method involves washing formed viscose threads; squeezing to provide 50%-content of α-cellulose; treating with aqueous catamine solution having mass concentration of 15-40 g/dm3; providing two-staged washing procedure in countercurrent of softened water at feeding and discharge temperature difference making 4-6 C at first stage and 3-5 C at second stage. Temperature of aqueous catamine solution is 18-30 C. Resultant thread has linear density of single fibers of 0.17-0.22 tex and mass fraction of 0.6-4.0% of catamine. Thread is subjected to drying process at temperature of drying drum surface of 80-90 C, followed by corrugation and cutting into 60-70 mm long fibers. Method further involves fixing resultant fibrous web by stitching process on substrate of thermally secured polypropylene having surface density of 10-30 g/m2.
EFFECT: enhanced antibacterial properties and reduced aerodynamic resistance of resultant material allowing blowing-off of fibers from filter layer by flow of air under filtering process to be prevented.
3 cl, 2 tbl, 6 ex
FIELD: reinforcement and protection of ground surfaces such as ground planning embankment slopes, automobile and railway roads, open pits, dry slopes of earth-fill dams etc from erosion processes by quick recovery of soil and plant layer.
SUBSTANCE: biomat is formed as multiple-layer, at least three-layer, structure including layers of cloth comprising artificial chemical fibers, and intermediate layer placed between each two cloth layers and secured therewith, said intermediate layer comprising plant seeds. Natural fibers are added into cloth so as to form mixture of natural and synthetic fibers, said mixture containing at least 15-50 wt% of synthetic fibers and 50-85 wt% of natural fibers from materials which form upon decomposition nutritive medium for plants, and surface density of cloth ranging between 250 and 800 g/m2. Apart from seeds of plants presented in cloth structure in an amount of 60-150 g/m2, cloth additionally contains nutrient mixture consisting of fertilizers, plant growth promoters and soil forming additives selected with soil-ground conditions of region where biomat is to be utilized and composition of used seeds being taken into consideration. Content of nutrient mixture is 20-90 g/m2. Also, natural or artificial sorbing substances are introduced into biomat structure in an amount of 30-600 g/m2 by embedding of these substances into cloth or composition of intermediate layer. Biomat may be readily unrolled on any ground surface and serves as artificial soil layer.
EFFECT: high moisture retention capacity providing formation of stable soil and ground covering, improved protection of ground surface from erosion processes, retention of plant seeds during growing, efficient development of root system during vegetation and high vitality of plant covering during formation thereof.
7 cl, 1 tbl
FIELD: technological processes.
SUBSTANCE: invention is manufactured out of thermostable or heat resistant fibres and may be used for manufacturing parts out of thermal structural composite material. Carbon nanotubes are in-built into fibre structure by means of their growing on the heat-resistant fibres of the basis.
EFFECT: provides more well-ordered tightening of parts and improvement of mechanical qualities.
31 cl, 6 dwg, 9 ex
SUBSTANCE: invention relates to an apparatus for colourless patterning of a textile fabric made of mutually interlaced and thus strengthened natural or synthetic fibres, preferably of a nonwoven fabric such as a wadding web, which is also dried in the case of a wet treatment such as hydrodynamic needling. The apparatus comprises a housing and a revolving drum provided therein, whereby the textile fabric is pressed by an overpressure and underpressure against the drum having perforations so that the cross-sectional areas of the perforations generate a picture pattern on the textile fabric, wherein an external peripheral surface of the drum being subject to drawing is provided with perforations depicting an image, which perforations act in diverse pattern-imparting fashions on the textile fabric resting thereon. Moreover, the drum and its external peripheral surface are microperforated as a whole and thus fluid-permeable, and the pattern-imparting perforations are sized larger than the microperforation of the surface supporting the textile fabric, Moreover, the textile fabric is capable of leading the fluid away from the entire surface in a region of the pictorial pattern and also beyond peripheral regions of the pictorial pattern.
EFFECT: providing a method with which a pattern can be continuously imposed on a nonwoven fabric in the course of treatment.
11 cl, 2 dwg
FIELD: textile; paper.
SUBSTANCE: presented bed for implementation of hydrocrowding process is manufactured by means of including in it depressed fibres during its manufacturing or forming of depressed fibres by means of calendering or grinding of initial fabric. Including of depressed fibres into bed at manufacturing of nonwoven fabrics provides higher crowding of fibres forming nonwoven fabrics.
EFFECT: creation of more rugged finished nonwoven material.
20 cl, 10 dwg
FIELD: textile; paper; process.
SUBSTANCE: method provides forming of composition nonwoven material with surface layer, underlayer and wireframe interlayer made of polymer material, at that received structure is passed through shafting. In the course of protective material receiving surface layer and underlayer form with surface density 200-400 g/m2, at that thickness of wireframe interlayer is 100-250 micron. Layers binding is implemented by means of passing through tightly pressured shafting, at that ratio of shafts diameters is 1:[6-8], big shaft is heated till temperature 180-250°C, and its rotational velocity is 1.2-4 rpm. Finished nonwoven material is enrolled and held at temperature 18-24°C during at least three days.
EFFECT: improvement of material physical properties; reduction of ecological stress to environment and reduction of material and technical consumption at its recovery.
1 tbl, 1 ex
FIELD: textile, paper.
SUBSTANCE: invention refers to nonwoven material technology and can as a base of building, finishing and other similar materials. Method for making nonwoven needled felt involves pulverisation and emulsification of mixture, rest, hackle webbing, cure, dipping in binder, drying, and cooling. Thus rest is followed with straight and cross hackling packed within at least five web layers needle-punched over two stages. Besides before the second stage, reinforcing filament is added, while material is pull-up smoothed, glazed and dipped in binder, dried and processed in cold glazer.
EFFECT: higher efficiency of method for making nonwoven needled felt with improved application performance.
12 cl, 2 tbl
FIELD: engineering procedures.
SUBSTANCE: one version of the method consists that the cloth is placed on porous substrate movable on the straight or rotating about the axis. At least one side of the cloth is processed with some water jets rowed perpendicularly to cloth moving direction. Herewith a row is formed with one-section jets and at least other section jets different from the first one.
EFFECT: improved surface properties of the product.
33 cl, 17 dwg