PROTECTED FABRIC Russian patent published in 2018 - IPC D04B21/14 

FIELD: textile, paper.

SUBSTANCE: proposed fabric includes: the first side; the second side, separated from the first hand; self-supporting connecting fibers which pass between the first and second sides that hold the first and second sides at a distance from each other, and compacted powder material located in the space between the first and second sides capable of solidification to rigid or semi-rigid monolithic material when adding liquids, in which both first side and second side essentially impermeable to powder material, but at least one of them is permeable for liquids, and in which the quantity and type of reagent in a compressed powder material and volume and the compaction of powder material such that the MV-OV=x⋅LV, where MV is the maximum amount of space inside the fabric, per unit of fabric area; thus, MV includes both the volume of unfilled space in the fabric before adding the powder material and additional volume that results from any expansion of space due to the pressure caused by swelling powder material in the course of adding liquid or during the solidification of material; OV is amount of space inside the fabric, occupied by the particles of powder material, not including the volume occupied by the voids in the powder material, per unit of fabric area; LV is liquid volume per unit of fabric area that leads to maximum limit of compressive strength with long-term loading (28 days) of backfill mixture after solidification, and the x-factor of 0.65 to 1.1.

EFFECT: improvement of fabric properties.

14 cl, 4 dwg