PTFE high-temperature fabric baking mats yinyika mune wa swipfuno swa nkoka: matirhelo lawa yanga namarheli (ku hava mafurha kumbe vuswa lebyi lavekaka, ti pastries to olova ti humesa hiku basa), mahiselo yo anama (-70°C kuya eka 260°C, yi hlayisekile eka oven kuya eka freezer), kutirhisiwa nakambe (magidi ya swirhendzevutani, swa olova ku basisa), hambi kuri ku fambisa kuhisa (ku sivela ku hisa, ku ringanisela ka browning). Food-grade FDA compliant, ti hanya kutlula phepha ra parchment naswona ti tlula ti silicone mats letingana ku hundziseriwa ka kuhisa ko antswa xikan’we na xivumbeko xale henhla xa kahle.

PTFE lapi ra mahiselo yale henhla i ya nkoka eka indasitiri ya swiambalo swa interlining. Switirhisiwa swa nkoka: mabandhi yo fambisa lawa yanga heriki ya michini yo hlanganisa leyi yaka emahlweni (yi sivela ku namarhela ka hot melt adhesive, ku fambisa lokunga na swirhumbana), xifunengeto lexi nga namarheliki na lapi ro padding ra ti flat heat press (yi sirhelela ti platens eka ku thyakisa ka namarheta), mabandhi yo fambisa ya ti dot paste/powder coating lines (yi hlayisa ti dot ta namarheta letinga onhakiki hi nkarhi wa ku omisa/sintering), na swifunengeto swa tintangu swa nsimbi swo kandziyela xikombiso. Ku enta swisukela eka 0.13mm (light padding) kuya eka 0.55mm (heavy-duty conveyor belts).

Anti-static PTFE fabric yifikeleriwa hiku tirhisa tindlela timbirhi letikulu: coating doping (ku hlanganisa ti conductive fillers tofana na carbon black eka PTFE emulsion, ku endla percolation network eka critical concentration) na substrate weaving (ku nghenisa ti conductive fibres eka fiberglass cloth). Ku tiya ka le henhla ka misava ku lawuriwa eka 105–109 Ω. Nsinya wa nawu: tumbuluxa ndlela yo fambisa leyi humesaka ti static charges hiku hatlisa, ku sivela ku hlengeletiwa ka khombo. Grounding swa boha leswaku kuta tirha kahle.

Lapi ra mahiselo yale henhla ya PTFE (PTFE-coated fiberglass) rinyika ku tiya ka ti khemikhali loku hlawulekeke, ku tiyisela ti acids leti hlanganisiweke (kukatsa na aqua regia), ti alkalis to tiya (eka mahiselo ya kamara), ti organic solvents, na ti oxidizing agents. Swihlawulekisi: tinsimbi ta alkali leti n’okiweke na ti halogen compounds ta mahiselo yale henhla swi hlasela PTFE. Ku onhaka ka ku peta swi veka fiberglass eka hydrofluoric acid na ti alkali to hisa leti hlanganisiweke. Mahiselo yale henhla ka 260°C ya hunguta ku tiya. Eka tindzhawu totala ta ti khemikhali, lapi ra PTFE ritshama ritshamisekile swinene naswona ritshembekile.

Ku omisiwa i goza ra nkoka eka vuhumelerisi bya malapi ya mahiselo yale henhla ya PTFE. Swihoxo leswi tolovelekeke swikatsa: ku pandzeka (ku hatlisa swinene ku oma, ku tshoveka ka nhlonge yale henhla), ku rhurha ka coating (ti particles ti famba kuya e henhla, ku tsana ka bond yale ndzeni), ti pinholes/blisters (moya lowu khomiweke kumbe steam), swivati swo basa na ku chalking (ku rhurha ka surfactant kumbe incomplete fusion), ku yellow/coking (ku hisa ngopfu ka swiengeteri), delamination (shrinkage stress exceeds adhesion), orange peel (ku nga ringani kahle), warpage (ku hunguteka loku nga ringaniki), ku oma ehenhla kambe endzeni ku tsakama (ku khuluka ka nhlonge swi khoma ndzhongho), na matlhelo yo tiya (coffee-ring effect). Switshuxo swikatsa ti drying profiles leti lawuriwaka, ku nghenisiwa ka moya kahle, na substrate pretreatment.

PTFE emulsion impregnation ya fiberglass fabric yilava swipfuneti swohambana hambana kuva ku fikeleriwa ku peta loku fanaka, ku namarhela loku tiyeke, na swiphemu leswinga riki na swihoxo. Swiengeteri swa nkoka swikatsa: switirhisiwa swo tsakamisa (ku hunguta ku tsana ka le henhla, ku antswisa ku nghena), swithickeners (ku lawula viscosity na ntiko wa ku peta), swilawuri swa pH (swi tiyisisa emulsion eka pH 9-10), switirhisiwa swo hlanganisa swa silane (ku ndlandlamuxa ku namarhela eka nghilazi), swipfuneti swo endla filimi (PFA/FEP ku sintering), switirhisiwa swo tata leswi tirhaka (ku lwisana na ku ambala, ku fambisa), ti defoamers (ku sivela ti pinholes), na ti humectants (ku oma hiku nonoka). Ku hlawuriwa swiya hi swilaveko swa substrate na matirhelo.

Lapi ra fiberglass leri andlariweke (bulked yarn fabric) rihambana swinene na lapi ra ntolovelo ra fiberglass eka xivumbeko xa yarn. Hiku tirhisa vutshunguri bya high-pressure air jet, ti filaments ta nghilazi leti yaka emahlweni ta hambanisiwa, ti crimped, naswona ti fluffed kuva voluminous, cotton-like yarn. Leswi swiendla leswaku kuva na lapi ro tiya, ro olova leringana thermal insulation yale henhla (trapped air layers), conformability yo antswa, higher filtration efficiency, xikan’we naku antswisiwa ka tear/flex resistance – hiku durha ka matimba yale hansi nyana ya tensile. Yi tirhisiwa eka ti gasket ta mahiselo yale henhla, swifunengeto swa tiphayiphi, swikhwama swo sefa na swipfalo swa oven.

Ku basa ka switirhisiwa swoka swinga lulamisiwanga i masungulo ya matirhelo ya lapi ra mahiselo yale henhla ya PTFE. High-purity PTFE emulsion (ku hava ti ions ta nsimbi, kungari na masalela ya low-molecular-weight) yitiyisisa ku tiya ka kuhisa (ku hava ku tshwuka kuya fika eka 260°C), non-stick leyi tiyeke, na matimba yale henhla ya dielectric. Eka fiberglass, alkali-free E-glass (Na2O <0.8%) yi hlayisa matimba xikan’we naku pfaleriwa eka mahiselo yale henhla; nghilazi ya le xikarhi/ya le henhla ya alkali yi vanga ku onhaka. Ku susiwa hiku hetiseka ka weaving sizing agents swisivela carbonization na delamination. Ku basa swi khumba hi ku kongoma vutomi bya vutirheli, ku landzelerisa ka giredi ya swakudya, na ku tshembheka ka gezi.

Ku omisiwa kahle ka lapi ra fiberglass swina nkoka swinene eka PTFE coating leyi landzelaka, resin impregnation, kumbe lamination. Vutshunguri byinharhu lebyikulu: ku susa ndzhongho eka 105-120°C (10-30 min kuya hi ntiko), dewaxing/thermal cleaning eka 300-450°C (LOI <0.1%, papalata>500°C), naku hisa ka ha ri emahlweni eka 60-100°C loko kungase peta. Lawula kufana ka mahiselo ya oven (±5°C), ku sindzisiwa ku susa ndzhongho, naswona sirhelela malapi lawa ya tshunguriweke hi silane ehansi ka 110°C. Hlayisa lapi leri omisiweke eka minkwama leyi pfaleriweke kumbe makamara yo oma (<30°C, <40% RH).

PTFE high-temperature fabric (PTFE-coated fiberglass) yile kusuhi naku pfumala ti khemikhali, kambe swilo swokarhi swivanga ku bola ehansi ka swiyimo swokarhi. Nhlaselo wo kongoma wa PTFE wuhumelela hi tinsimbi ta alkali leti n’okiweke (sodium, potassium), switirhisiwa swo tiya swa fluorinating (F2, ClF3) eka mahiselo yale henhla, na ti alkali to tiya leti n’okiweke ehenhla ka 300°C. Ku bola lokunga kongomangiki ku humelela loko hydrofluoric acid (HF), hot concentrated alkalis, kumbe phosphoric acid yo hisa yi nghena eka swihoxo swa coating naswona yi hlasela substrate ya fiberglass. Eka vukorhokeri bya tikhemikhali byo tlula mpimo, tirhisa filimi ya PTFE yo basa leyi nga riki na fiberglass.