FIELD: textile, paper.
SUBSTANCE: composite material, containing at least one mechanically strengthened carded web of glass fibre, and at least one mechanically strengthened carded web of mineral fibre applied at one side and having higher heat resistance compared to mechanically strengthened carded web of glass fibre. At the same time both glass fibre web and mineral fibre web are joined to each other by means of needle piercing.
EFFECT: insulation material may be used in the range of high temperatures, and its production does not require high costs.
27 cl
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