(57) Abstract:The invention relates to the textile industry, namely the nonwovens produced from synthetic fibers, and can be used in the transport industry, in particular in the automotive industry for the top layer of ceiling, trunk lid, gaskets, door, etc. Nonwoven material contains a fibrous layers, the United stitch-bonding method, which consists of, by weight. %: viscose fiber linear density of 0.44 Tex, cutting length of about 90 mm 50%; Mylar fiber linear density of 0.33 Tex, cutting length 60-66 mm 50%. The invention provides for increasing the strength of the material and the simplification of its manufacturing technology. The invention relates to the textile industry, namely the nonwovens produced from synthetic fibers, can be used in the transport industry, in particular in the automotive industry for the top layer of ceiling, trunk lid, gaskets, door, etc.Known non-woven needle-punched material [Perepelkina memorial plaques and other Mechanical technology production of nonwoven materials. - M: Light industry, 1973, S. 35], including glass and mineral Volonte obtain asbestos cloth, additionally, the presence of non-woven asbestos cloth - carcinogen - entails the violation of safe working conditions and exploitation.Known nonwoven fibrous material [AC USSR 1520908, 1987], containing a mixture of sealed hypoproteinemia fibrous thread-mass recovered from sewing scraps of cotton fabrics in the amount of 50-60% by weight of the material and the PVC shrinkable fibers in the amount of 20-30% by weight of the material. Nonwoven fibrous material further comprises a polyester fiber in the amount of 20-30%.The disadvantage of the material is its low strength, not allowing the use of the material in the discontinuous loads.Also known multilayer nonwoven material [AC USSR 988924, 1983], which contains two layers haloprogin paintings from natural, chemical fibers or mixtures thereof, sewn filaments knitted weave, between which there is at least one layer of fibrous cloth made of natural fibers or mixtures thereof, bonded hypoproteinemia with one of the layers holstering cloth constituting 20-12 wt.h. from the mass of non-woven material. The content of the tufting threads in the canvas the canvas and fibrous canvas is 6-21 wt.h. from the mass of material.The material is durable, but its disadvantage is the complexity of the technology.The objective of the invention is to increase the strength of non-woven material, as well as simplifying its manufacturing technology.The problem is solved in that the nonwoven material contains interconnected stitch-bonding method of the fibrous layers comprising, in wt. %: viscose fiber linear density of 0.44 Tex, cutting length of about 90 mm - 50%; Mylar fiber linear density of 0.33 Tex, cutting length 60 - 66 mm - 50%.The proposed parameters of the fibers can improve the connection of the fibers with each other in the manufacturing process and, ultimately, to obtain a sufficiently dense and elastic material.Further increase in the length of cut fibers and increase their linear density will result in the loss of material elasticity, and in operation shock - absorbing properties. In addition, the long fibers can be laid in the manufacturing process of zigzag, which does not allow full use of their strength properties.Smaller cutting length can lead to the formation of short fibers and to reduce the strength of the material. Ameneshewa as follows. Raw material - viscose fiber linear density of 0.44 Tex, cutting length 90 mm - 50%; Mylar fiber linear density of 0.33 Tex, cutting length 66 mm - 50% mixed by hand to form the fibrous layer:
The rotational speed of the platen horizontal grid, min-1- 1,50,5
The rotational speed of the roller is inclined lattice, min-1- 1202
Speed removable cushion, min-1- 42010
Then Rossiyane and oiling mix:
The speed of the supply grid, m/min - 8,01
The rotational speed of the main drum, min-1- 20010
The rotational speed of the working rolls, min-1- 15
Speed removable cushions, min-1- 20
The rotational speed of the vane, min-1- 74010
The amount of the emulsion by weight of a fibrous mixture, % - 14
As lubricant drug use OS-20 or sintepon and stearic - 6. Preparing a solution of the emulsion (6% OS-20 or 3% of sintepon, 3% stearica - 6) by dissolving the components in hot water (50-70oC) under stirring in the tank with a mechanical stirrer for 15 minutes a Composition of a sizing emulsion: OS-20 60,06 kg or sintepon 3,00,06 kg; water 94,0 L.Next, perform the following operations:
speed needle lattice, m/min - 120
time, aging the mixture, h 12-24
- itching mixture
weight throw, g - 235
the speed of the inclined lattice, m/min 9,0
the coefficient of variation by weight, % - 2,5 - Preprocess
the rotational speed of the main drum, min-1- 35
rotation frequency, min-1:
working rollers - 72
removable cushions - 5
distillation of the roller - 110 - 1 webs
speed removable drum, min-1- 115
the rotational speed of the working rolls, min-1- 330
speed removable cushions, min-1- 10
rotation speed of the main line of the platen, min-1- 7 - 2 webs
the rotational speed of the main drum, min-1- 12
rotation frequency, min-1:
the working roller - 385
removable cushion - 5-11
adbegone - 450
runner - 690
Pedagogika - 695
removable drum - 10
castilnovo roller - 21
The final operation forming material in the form of severe leaf carried out using stitch-bonding machines:
stitch length, mm - 1,2
removable gear stitch length - Zcm=36; Z1=40; Z2=60; Z3=30
the rotational speed of the main draw layers, characterized in that the fibrous layers are connected by stitch-bonding method and consist of, in wt.%: the viscose fiber linear density of 0.44 Tex, cutting length of about 90 mm 50%; Mylar fiber linear density of 0.33 Tex, cutting length 60-66 mm 50%.
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