公开(公告)号：WO2023031670A1

公开(公告)日：2023-03-09

申请号：PCT/IB2022/000506

申请日：2022-09-02

Applicant: TOPCELL AB

Inventor： ANDERSSON, Tommy ,  WIKSTRÖM, Ulf ,  OLSSON, Bo ,  LUDVIGSSON, Hans-Olof ,  ISVÉN, Anders

IPC: D04H1/02 ,  D04H1/425 ,  D04H1/732 ,  E04B1/62 ,  D21B1/06

Abstract: The invention of the present disclosure concerns a loose fill insulation that can be produced from different types of plant fibers as well as a process for producing said insulation material. The insulation material has good heat-isolation properties and can be applied with a blow machine in voids in buildings and in attics. The process method solves several known problems with loose fill, and the material can be produced in an energy-efficient way. The insulation material is provided with a high heat-inertia, minimum convection and good sound-proofing ability. Fire-retardant substance is mixed into the fiber material and as a consequence speed of spreading of fire is reduced. The hygroscopic properties of the raw material are conserved, since the material is not exposed to high pressure, chemicals, water or high temperature. The loos fill insulation can be compacted into bales that can be easily handled making storage and transport more efficient from a volume perspective than for existing isolation materials. Upon application with blow machines, the formation of dust is reduced compared with existing loose fill insulation materials. The material does not cause itching as do numerous existing isolation materials, and upon inhaling of particles the same health risks as for stone wool, glass wool or traditional cellulosic materials are avoided. Fungicides, formaldehyde or pesticides are not needed to be mixed into the material.