SU144147A1 - Method of making nonwoven material - Google Patents

Description

Various methods are known in the industry for the manufacture of nonwovens, both from fibrous material stitched in pits in the fractional or transverse direction, and from the feeds of the two systems, fastened either by piercing them in lock chains, or by sticking them together, and laying on a continuous thread. layer of glue, which makes nonwoven fabric not sufficiently breathable.

The proposed method of manufacturing a nonwoven material by continuously forming separate webs of warp and no gay webs, interconnected by glue, is characterized in that the connection of the webs is dried by applying a non-continuous layer of glue to them and laying them on the canvas of the warp of weft threads, the length of which is equal to the width of the base.

This method provides non-woven material with sufficient breathability.

The nonwoven fabric made by the described method consists of layers of warp and weft layers, laid on the substrate with iodine or some other angle.

The process for producing nonwoven material is that the warp threads, using special guiding devices used in the textile industry, are wound from spools and laid parallel to each other in one row per cylinder.

On top of this cylinder, through the printed matrix, onto the formed web of base threads, glue strips or meshes are printed, with BF type glue (or others) at a given angle to the core threads. Then, the second cylinder is used to roll the weft piece (plates) of weft threads, where the adhesive strips are already fixed, in the form of bridges (false base) and keep the weft plate threads in one plane parallel to each other.

After they are rolled, weft plates are glued to the canvas of the warp threads with glue strips.

No. 144147-2. The weft plate web is made on the same assembly as the base yarn web.

If it is necessary to increase the thickness of the nonwoven material, the layer of the warp and weft threads is successively placed one on the other several times. When applying adhesive BF, the glued web rolls through a system of ironing rolls, where the solvent evaporates and the adhesive polymerizes.

The web is then subjected to finishing (dyeing, washing, printing).

Due to the fact that the adhesive strips are located inside the fabric, the fibers located on the outside remain clean and are well perceived as a regular fabric.

Subject invention

A method of making a nonwoven material by continuously forming webs of warp and weft yarns interconnected by glue, characterized in that, in order to communicate air permeability of the fabric, the webs are joined by applying a non-continuous layer of glue to them and applying on the canvas of the warp of the segments of the canvas of the weft threads, the length of which is equal to the width of the warp.