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 [1] 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

 

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