METHOD FOR DETERMINING LAUNDRY PROPERTIES IN A TUMBLE DRYER AND TUMBLE DRYER SUITABLE THEREFOR

• Main Authors: PRONOBIS, Wiktor, VON DER WAYDBRINK, Ekkehard, BLANKEN, Maike, SCHLIECKER, Gudrun
• Format: Patent
• Language: English; French; German
• Published: 02.09.2020
• Subjects: FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; LAUNDERING; LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILEARTICLES; MEASURING; PHYSICS; TESTING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE

In a method for determining laundry properties in a tumble dryer (1) comprising a horizontally rotatable laundry drum (2) and a resistance measurement device (3) with two measurement electrodes (4), and also a control unit (6), a) the electrical resistance R between the measurement electrodes when the laundry drum (2) is rotating is measured depending on the time t; b) the electrical resistance RR(t) which is measured depending on the time t is averaged over a prespecified time period Δt and registered as a time-dependent average resistance value Rm(t); c) the time-dependent average resistance value Rm(t) is evaluated in respect of an initial average resistance value Rs and/or a change over time ΔRm/Δt in the time-dependent average resistance value Rm(t); d) the initial average resistance value Rs determined in step (c) and/or the change over time ΔRm/Δt in the time-dependent average resistance value Rm(t) determined in step (c) is evaluated in respect of an initial laundry dampness Hs and/or a type of laundry and/or the remaining drying time. The control unit (6) of a tumble dryer (1) is also designed to carry out the method according to one of claims 1 to 12.