Izinto zokuzalisa zesofa yehotele, ifanitshala yesidlo sehotele inokwahlulwa ngokubanzi ngoku kulandelayo:
1. Igwebu elithambileyo le-polyuretin (eyaziwa ngokuba sisipontshi) kwizipontshi ezizaliswe isofa zihlulwe kakhulu zibe ziindidi ezintathu. Isiponji esiqhelekileyo sisipontshi esiveliswa yi-polyether eqhelekileyo kunye ne-TDI.
Ibonakala ngokuthambileyo, ukuthamba, kunye nokuphefumla. Isiponji esine-high-rebound sisiponji esiveliswa yi-polyphisms esebenzayo kunye ne-TDI njengomzimba oyintloko. Iimpawu zayo zineempawu ezibalaseleyo zoomatshini kunye ne-elasticity elungileyo. Umthwalo omkhulu woxinzelelo, ukumelana nokutsha, ukuphefumla okulungileyo. Isiponji sesiphithiphithi luhlobo lwesipontshi esifana nezityalo zaselwandle zendalo ezinobukhulu obahlukeneyo. Ibonakala ngokuqina okulungileyo, kwaye inomgangatho ogqwesileyo wokuthomalalisa xa ucinezelwa kwaye ubophe kwakhona.
2. Ukuzaliswa kwe-Plel: ezantsi ukuzalisa ukuzaliswa kwesofa, ukuziva ukhululekile ukuhlala, i-deformation encinci ixesha elide, into engalunganga kukuba i-rebound icotha kwaye iindleko nazo ziphezulu. Ngokuqhelekileyo uyisebenzise kunye nesiponji kwiisofa eziphezulu, okanye ezifanelekileyo kwi-cushion.
3. Ukuzaliswa okwenziwe ngokwenziwa: Ikotoni eyenziweyo izaliswe ngokuzaliswa kwe-sofa, ethambileyo kakhulu kwaye ikhululekile ukuhlala, kodwa iipropati zomatshini zihluphekile kwaye umthwalo oxinyiweyo uncinci.