Production method of air filter filtering medium, air filter filtering medium, filter pack, and air filter unit
JP2025035415AActive Publication Date: 2025-03-13DAIKIN INDUSTRIES LTD
Patent Information
- Application Number
- JP2023142439
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-01
- Publication Date
- 2025-03-13
- Estimated Expiration
- 2043-09-01
Smart Images

Figure 2025035415000001_ABST
Abstract
To provide a production method of an air filter filtering medium which can inhibit deterioration of a function during joint, and to provide an air filter filtering medium, a filter pack, and an air filter unit.SOLUTION: A production method of an air filter filtering medium includes: a first step in which a porous membrane and an aeration membrane are prepared; and a second step in which the porous membrane and the aeration membrane are adhered to each other by using a hot melt adhesive in a melting state. In the second step, a temperature of the aeration membrane is lower than a temperature of the hot melt adhesive in the melting state.SELECTED DRAWING: Figure 6
Need to check novelty before this filing date? Find Prior Art
Citation Information
Patent Citations
Porous material, filter material for air filter, air filter unit, and supporting material for filter material for air filter
JP2000176262A
Ventilation filter
JP2005334758A
Ventilation filter having oil repellency
JP2017023979A
Air filter and manufacturing method of the same
JP2017170315A
Porous polytetrafluoroethylene film and production method and filter medium thereof
JP2009297702A