SU857316A1 - Method of producing nonwoven material - Google Patents

Description

(54) METHOD OF MANUFACTURING A NON-WOVEN MATERIAL The invention relates to the technology of making nonwoven materials, in particular, nonwoven oriented materials, consisting of schisol and transverse strands of fibers glued together. A known method of manufacturing a nonwoven material in which the system of longitudinal threads is arranged around the circumference, is moved along a cylindrical mandrel, wrapped with a system of transverse threads, glued with a system of longitudinal threads with cutting the resulting material into diametrically opposite points. The semi-cylinders of the material are unfolded into flat webs in the process of their disintegration into opposite strings, after which each web is drawn separately and then non-rolled into a roll {11. The disadvantages of this method are the danger of material structure damage due to inaccurate coordination of the speeds of individual pulling devices, what. affects, on. the quality of the material, as well as the fact that the spreading of the cloths in opposite directions increases the overall dimensions of the equipment, and the disconnection of the winding places of the coils complicates its maintenance. The purpose of the invention is to improve the quality of the material, increase the removal of material from a unit of production, and facilitate the maintenance of equipment. This goal is achieved by the fact that in the well-known method, which includes forming a system of longitudinal threads with their location around the circumference, we value this system along a cylindrical mandrel, attaching it to it by winding the system of transverse threads, gluing both systems and the other, cutting the resulting material cylinder by forming in diametrically opposite points, straightening of each half-cylinder of material into a flat web, stretching and winding each web into a separate roll, while straightening parts of the material of the axle st l dissolved their gradual convergence to complete their ontact .d, wherein pulldown. subject to combined canvases. The implementation of the proposed sposbb presented in the drawing. The warp threads 1 from the spool box 2 are pushed into the holes of the disk 3, the uvdies are evenly distributed around the circumference, and the threads are guided along the surface of the mandrel 4. A system of thermoplastic threads 6 is placed on the moving along the floor system of the threads along the rotor 5 the rotor 7 is laid system of transverse glass yarns 8. The molded material is glued by melting thermoplastic filaments in the heated section of the mandrel 9 and the subsequent solidification of the bond, and then cut to support The disk 10 is in two diametrically opposite points along the pattern with a knife 11. The resulting semicylinders of the material are straightened into flat webs q using ellipsoid frames 12 s sequentially increasing the size of the elliptical. The straightening of 1 / v cylinders of the material is carried out in the process of their approaching to full contact by the end of the straightening. The combined webs are passed through, having the arrangement 13, providing the material movement at all stages of its manufacture, then are separated and wound into separate rolls D4 and 15.

The straightening of the semicylinders of the material in the approaching projection using the ellipsoid frames arranged between them occupies a much smaller area than in the known method, which makes it possible to significantly reduce the size of the installation. This reduces the forces in the material during the expansion, which can change its structure. Stretching in combined position: by the same method, the device also eliminates the possibility of distortion of the material structure due to inconsistency of their movement speeds. In addition, this makes it possible to arrange arrangements for winding material rolls in close proximity to each other, which facilitates the maintenance of equipment and contributes to the reduction of its dimensions. At the installation that implements the proposed method, as compared to the installation operating according to the well-known cxeMej, with the receipt of a single web of a brl, you can have two

more material per unit of production area. The resulting material is characterized by a more uniform structure and significantly more even edges.

invention formula

The method of producing non-bandy material, in which the Siet® at the longitudinal threads is arranged around the circumference, is transferred to its Pocyl {w; The mandrel, wrapping it with a cross-sectional system, is glued with a longitudinal line with a system that is cut by the resulting material along the mandrel forming points in the opposite opposite side, spread the parts of the material into a flat sheet, and the patterns are laid. As a result, in a 6-fold roll, which differs so that, with the aim of improving the quality and productivity, when straightening the material parts, they are gradually getting closer to the full contact, while odverh ayut combined fabric.

Information sources,

taken into account during the examination: 1. Krchma R, Non-woven textile materials. M .; Light industry, 1964, p.200-204.

Claims (1)

Claim A method of manufacturing a nonwoven fabric, in which a system of longitudinal threads is arranged in a circle, move it along a cylindrical mandrel, wrap it with a system! . transverse threads, glued with a system of longitudinal threads, followed by ** cutting the resulting material into the mandrel at diametrically opposite points ^ straighten parts of the material into a flat cloth, pull out the canvases, and ’30 then wind each cloth separately! a roll that distinguishes-, with what, with the aim of improving ka-? quality and increase productivity, when straightening parts of the material 35 carry out their gradual rapprochement until they are completely in contact, while broaching subjected to combined canvas.