Zaɓin madaidaicin polypropylene (PP) don jariri ko ɗakin bayan gida ba kawai yanke shawara ba ne - tsayin daka ne da ƙaddamarwa wanda ke nunawa a cikin ɗigon gwaje-gwaje, goge hawan keke, da manyan fayiloli. Idan kun taɓa kallon faɗuwar daki mai sanyi yana rushe wani samfuri mai kyau, kun san dalilin ƙarancin zafin jiki shine tauraron arewa na wannan rukunin. Wannan jagorar tana juya gaskiyar ta zama zaɓi mai maimaitawa da tsarin tabbatarwa da zaku iya gudanarwa tare da masu kaya da labs.

Mabuɗin ɗaukar hoto

Yi amfani da rahotanni na ɓangare na uku da ke kasancewa a matsayin ƙashin bayan bin ka'ida, sannan taswira su zuwa CPSIA/ASTM da EN 71 3 don tabbatar da iyaka da gibin.

Favor tasiri copolymer maki PP don ƙaramin sifili taurin; saita maƙasudin karɓa na zahiri a -10 ° C ta amfani da ISO 179/ASTM D256 da haɗa gwajin juzu'i.

Tabbatar da juriya na sinadarai tare da ASTM D543 da fashewar damuwa tare da ISO 22088; sake gwada tasirin tasirin bayan fallasa don tabbatar da tsaftacewar duniya ta ainihi.

Haɓaka ɓangarorin wucewa ta ƙira don masana'anta: ganuwar iri ɗaya, ƙimar haƙarƙari daidai, radis mai karimci, da sarrafa layin walda.

Kulle cikin inganci tare da ingantaccen tsarin aiki (samfurin → EVT/DVT → PPAP/PVT) da saitin takaddun mai siyarwa na duba.

Taswirar yarda da rahotannin ɓangare na uku

Lokacin da tushen tushe shine "amfani da rahotanni na ɓangare na uku na alamar," aikinku shine daidaita shaida da fallasa gibi cikin sauri. Sanya taswirar ku zuwa ginshiƙai uku:

CPSIA don sinadarai a cikin samfuran yara. Ƙididdigan jimlar gubar na ƙa'idar Amurka shine 100 ppm don samfuran yara, kuma gubar a cikin fenti/rufi tana iyaka da 90 ppm-duba albarkatun mai mai gudanarwa a cikin CPSC Total Lead Content FAQ da rubutun ƙa'ida a eCFR 16 CFR Sashe na 1303: Jagorar cikin Paint.

TS EN 71 3 (EU / UK) don ƙaura na wasu abubuwa daga kayan wasan yara. Yi amfani da ingantaccen rahoton lab wanda ke ƙayyadaddun Rukunin I-III da lissafin sakamakon kowane kashi. Don sabunta mahallin, duba TÜV's EN 71 3:2019+A1:2021 bayyani.

FDA 21 CFR 177.1520 (maganin tsafta na zaɓi). Duk da yake ba dole ba don gidan bayan gida na jarirai ba abinci ba, yawancin nau'ikan samfuran sun fi son lambar sadarwar abinci PP don saman da bayyanar ruwa. Tabbatar da izini nau'ikan/haɓaka na polymer da yanayin hakar a cikin abubuwan ƙara kai tsaye na FDA don polypropylene.

Yadda ake karanta rahotanni da inganci:

Tabbatar da samfurin kwatancen sun dace da samar da niyya launuka da masterbatches.

Tabbatar da takardar shaidar lab, rahoton ID, kwanakin gwaji, da daidaitattun bugu.

Matsakaicin bayanin kula (misali, EN 71 3 da aka gwada nau'in, girman panel phthalate CPSIA) da shirye-shiryen gyara kafin DVT.

Zaɓin darajar PP don zaɓin kayan aikin bayan gida mai ɗorewa na PP

Tasirin ƙarancin zafin jiki shine kerawa ko karya dukiya don wannan rukunin. Homopolymer PP yana da kauri amma yana ƙoƙarin juyawa kusa da daskarewa. Tasirin copolymer PP (ICP) yana tarwatsa lokacin rubbery wanda ke kiyaye tauri a 0 zuwa -20 ° C. Kasuwancin yana da sauƙi: ICP don juriya mai juriya, an daidaita shi tare da lissafi da sarrafawa don riƙe isassun tauri don wuraren zama, kwano, da haƙarƙari.

Homo vs. tasiri copolymer da hari

Yi la'akari da homopolymer a matsayin madaidaiciyar mai mulkin ku - mai tsauri kuma mai tsabta - yayin da ICP shine abin sha. Don ɓangarorin da aka haɗa, kar a dogara da lambobi masu zafin jiki na ɗakin bayanai. Sanya maƙasudin tabbatarwa na gaskiya a yanayin sanyi:

Fahimtar Charpy ISO 179 a -10 °C: 6-10 kJ/m² akan allunan da aka ƙera, wanda aka zaɓa kowane sa da dabarun bango/haƙarƙari.

Gwajin juzu'i da aka haɗa a -10 ° C: daidaitawa guda uku (rim yajin, kusurwa, lebur) × uku saukad da kowanne daga ~ 1.0 m akan kankare; babu fasa ko hinge/ shugaban kasa.

Ma'auni na duniya na ainihi: maki na ICP na heterophasic sau da yawa suna buga ƙananan darajar Charpy a cikin takaddun bayanan su. Yi amfani da waɗancan lambobin don tsara tsammanin, sannan tabbatar da aiki tare da gyare-gyaren allunan ku da sassan da aka haɗa.

Tabbatar da aikin injiniya: tasiri, juriya na sinadarai, da ESC

Yarda da takarda ba ya tsira daga haƙarƙari mai fashe ko mahaukacin shugaba. Tabbatar da aiki tare da ƙaƙƙarfan matrix na lab, mai iya sakewa:

Taurin tasiri

Hanyar: ISO 179 (Notched Charpy) ko ASTM D256 (Izod) a 23 ° C da -10 ° C akan allunan da aka ƙera daga samar da niyya kayan aiki / aiwatar da windows.

Karɓa: -10 °C alamar tasiri ≥ ƙofa da aka zaɓa (6-10 kJ/m²) da haɗewar gwajin juzu'i ba tare da fasa ba.

Juriya na sinadaran (cleaners/disinfectants)

Hanyar: ASTM D543 nutsarwa ko goge bayyanawa ta amfani da ainihin abubuwan wanke-wanke/magungunan ka (misali, quats, peroxide, diluted bleach). Ƙayyade maida hankali, zafin jiki, da lokaci; auna canjin taro/girma da sake gwajin tasirin.

Karɓa: ≥80% riƙe ƙarfin tasiri vs. sarrafawa; babu kumburi ko fari fiye da ka'idojin kwaskwarima.

Tsagewar damuwa na muhalli (ESC)

Hanyar: ISO 22088 karkashin lankwasawa / tensile iri tare da 1-2% surfactant a 23 ° C da 40 ° C. Yi rikodin lokacin fara fashewa da F50.

Karɓa: Babu fashewar gani a 10 × haɓakawa akan lokacin gwaji; manufa F50 ≥ 24-72 h ya danganta da da'awar maki da mahimmancin lissafi.

Bincika gaskiya na Bonus: Bayan bayanan sinadarai/ESC, maimaita tasirin -10 °C akan takardun shaida da sake zagayowar digo ɗaya. Wannan shine yadda kuke samun farin jini wanda ya zama dawowar safiyar Asabar.

DfM wanda ke haɓaka ƙimar faɗuwar gwaji

Ƙarƙashin zafin jiki yana farawa da zaɓin matsayi, amma lissafin lissafi yana kulle a gefe.

Kaurin bango: Rike shi uniform. Don PP, ganuwar mara kyau a kusa da 0.6-3.8 mm sau da yawa yana aiki da kyau; guje wa manyan sassan> 5 mm waɗanda ke kama zafi da damuwa.

Haƙarƙari waɗanda ke ƙarfafa ba tare da ƙirƙirar nutsewa ba: Girman haƙarƙari a ~ 50-70% na bango mara kyau, tsayin ≤3 × bango, da ba da radis mai karimci a tushe (~ 0.25 × bango).

Radii da fillet: Nufin ≥0.5 × bango akan sasanninta na ciki da haɗakar da haƙarƙari; wannan yana rage girman hankali wanda ke nunawa a cikin sanyi.

Dabarar Ƙofar da layukan walda: Sanya ƙofofi don kiyaye layin walda daga manyan wuraren da ake ɗauka; yi amfani da madaidaitan ƙofofin ƙofofi masu yawa ko ƙofofin fan/baki. Tabbata tare da nazarin kwarara kuma tabbatar da rushewar binciken bayan faduwa gwajin.

Sanyaya da sarrafa tagogi: Madaidaitan tashoshi masu sanyaya da fakitin da aka tattara/riƙe yana rage ɓarna da sama da tattarawa a cikin sasanninta. Bibiyar yanayin narke/gyara da saurin allura a kowane takardar bayanan darasi yayin tabbatarwa.

Gwajin aikin aiki da ƙofofin karɓa daga samfuri zuwa samarwa da yawa

Samfura (T0-T1)

Tambayoyi na ƙira da takaddun shaida masu mahimmanci a cikin maki 2-3 ICP tare da kwarara daban-daban (MFR). Kafa tushen tushen ISO 179/ASTM D256 a 23 °C da -10 °C; gudanar da sauri D543 fuska tare da yuwuwar masu tsaftacewa.

Gina Injiniya (EVT/DVT)

Aiwatar da ingantaccen layin haƙarƙari/radius/weld; Gudanar da ISO 22088 ESC tare da abubuwan da suka dace da nau'ikan da ake amfani da su. Yi gwajin faɗuwar -10 °C tare da haɗin kai a duk matakan. Maimaita aiwatar da windows da gating kamar yadda ake buƙata.

PPAP/PVT da ƙaddamarwa

Kulle takaddun mai siyarwa (DoC, CoA, SVHC/DoP, ID na ɓangare na uku EN 71 3/CPSIA). Tabbatar da iyaka mai launi. Daskare sharuɗɗan karɓa da AQL mai shigowa tare da tabo -10 °C cak akan takaddun shaida.

Misali mai amfani da micro (alama mai aminci)

Anan ga yadda za'a iya tsara taswirar takaddar mai kaya ba tare da talla ba. A ce mai siyar da ku ya ba da rahotannin ɓangare na uku wanda ke rufe EN 71 3 (tare da an bayyana Rukunin), jimillar gubar CPSIA da phthalates, da sanarwar tuntuɓar abinci ta PP wacce ta dace da FDA 21 CFR 177.1520. Za ku:

Tabbatar da ID na kowane rahoto, sunan lab da aka amince da shi, da kwanan wata; daidaita samfurin launi / masterbatch da yawa.

Sakamakon Crosswalk EN 71 3 zuwa madaidaicin rukuni kuma bincika abubuwa tare da mafi ƙarancin iyaka don gefe.

Tabbatar da CPSIA: jimlar gubar ≤100 ppm da fenti/shafi ≤90 ppm inda ya dace; tabbatar da cikakken phthalate panel (≤0.1%).

Idan an bayar da sanarwar PP mai tuntuɓar abinci, tabbatar da yanayin hakar daidai da §177.1520 kuma masu ba da izini suna yin la'akari da sashe daidai.

Wane sayayya ya kamata ya nema a rana ta farko

Bayanin Yarda da Yarjejeniyar Samfurin Yara: EN 71 3 An bayyana; Rufin CPSIA don gubar da rukunin phthalate na dindindin; colorant/masterbatch DoC.

Rahoton ɓangare na uku: EN 71 3 (cikakken jeri tare da raka'a), CPSIA (duba / phthalates) tare da ID na rahoton, sunayen lab, kwanan wata, da kwatancen samfurin; kowane sanarwar FDA 21 CFR 177.1520 don zaɓaɓɓun maki PP.

Material da traceability: PP grade ID (homopolymer vs. ICP), SDS, REACH SVHC sanarwa, batch CoA, gyare-gyare records (MFR, tsari windows), kuma a cikin gida gwajin ladabi / sakamakon tasiri, D543, da ISO 22088.

Nassoshi a cikin mahallin

Iyakar sinadarai na Amurka: CPSC Jimlar Abubuwan Abubuwan da ke cikin Jagorar FAQ (kayayyakin yara, 100 ppm); eCFR 16 CFR Sashe na 1303 (gubar cikin fenti, 90 ppm).

ƙaura EU/Birtaniya ƙaura: Bayanin TÜV na EN 71 3:2019+A1:2021.

Tuntuɓi abinci na FDA PP: FDA kai tsaye shigarwar polypropylene.