BINCIKEN SIFFOFIN KYAUTATA JUNA

● Zai iya buga alamu masu kyau.

●Yana da tsawon rairayi (watanni 6-12) a cikin zafin jiki kuma yana da sauƙin rufewa da buɗewa.

●Babu firiji da ake buƙata, adanawa akan farashin firiji

●Ya dace da tattara nau'ikan abinci iri-iri, kamar nama da kaji, kayan ruwa, 'ya'yan itatuwa da kayan marmari, abinci iri-iri na hatsi, da miya.

● Ana iya yin zafi tare da kunshin don hana dandano daga rasa, musamman dacewa da aikin filin, tafiya, da abinci na soja.

Cikakkun samar da jakar dafa abinci, gami da nau'in abun ciki, tabbacin inganci na cikakkiyar fahimtar ƙirar ƙirar samfurin, ƙirar ƙasa da tawada, zaɓin m, tsarin samarwa, gwajin samfur, marufi da sarrafa tsarin haifuwa, da sauransu, saboda jakar dafa abinci. Tsarin tsarin samfurin shine ainihin mahimmanci, don haka wannan babban bincike ne, ba wai kawai don nazarin tsarin ƙirar samfurin ba, har ma don ƙarin nazarin ayyukan samfuran tsarin daban-daban, amfani, Tsaro da tsabta, tattalin arziki da sauransu.

1. Lalacewar Abinci Da Haihuwa
'Yan Adam suna rayuwa a cikin ƙananan ƙwayoyin cuta, dukan halittun duniya suna wanzu a cikin ƙananan ƙwayoyin cuta marasa iyaka, abinci a cikin haifuwa na ƙananan ƙwayoyin cuta fiye da ƙayyadaddun ƙayyadaddun abinci, abincin zai lalace da asarar haɓakawa.

Sanadin lalacewar abinci na ƙwayoyin cuta na yau da kullun sune pseudomonas, vibrio, duka masu jurewa zafi, enterobacteria a 60 ℃ dumama minti 30 sun mutu, lactobacilli wasu nau'in na iya jure wa 65 ℃, minti 30 na dumama. Bacillus na iya jure 95-100 ℃, dumama na mintuna da yawa, kaɗan na iya jure wa 120 ℃ ƙasa da minti 20 na dumama. Baya ga kwayoyin cuta, akwai kuma yawan fungi a cikin abinci, ciki har da Trichoderma, yisti da sauransu. Bugu da ƙari, haske, oxygen, zafin jiki, danshi, ƙimar PH da sauransu na iya haifar da lalacewa na abinci, amma babban abin da ke faruwa shine ƙananan ƙwayoyin cuta, saboda haka, yin amfani da dafa abinci mai zafi don kashe ƙananan ƙwayoyin cuta shine muhimmiyar hanyar adana abinci na dogon lokaci. lokaci.

Sterilization na abinci kayayyakin za a iya raba zuwa 72 ℃ pasteurization, 100 ℃ tafasasshen ruwa bakara, 121 ℃ high-zazzabi dafa abinci haifuwa, 135 ℃ high-zazzabi dafa abinci haifuwa da 145 ℃ matsananci-high-zazzabi kamar yadda wasu masana'antun da ba za a iya amfani da su nan take. -madaidaicin zafin jiki na kusan 110 ℃. Dangane da samfuran daban-daban don zaɓar yanayin haifuwa, an nuna mafi wahalar kashe yanayin haifuwa na Clostridium botulinum a cikin tebur 1.

Tebur 1 Lokacin mutuwar Clostridium botulinum spores dangane da zafin jiki

zafin jiki ℃	100	105	110	115	120	125	130	135
Lokacin mutuwa (minti)	330	100	32	10	4	80s	30s	10s

2.Steamer Bag Raw Material Halayen

Jakunkuna mai jujjuyawa dafa abinci mai zafin jiki yana zuwa tare da kaddarorin masu zuwa:

Ayyukan marufi mai dorewa, ajiyar kwanciyar hankali, rigakafin ƙwayar cuta, juriya na haifuwa mai zafi, da sauransu.

Abu ne mai kyau wanda ya dace da marufi na abinci nan take.

Gwajin tsari na al'ada / PET / m / aluminum foil / m manne / nailan / RCPP

Jakar mai zafi mai zafi tare da tsarin Layer uku PET/AL/RCPP

Umarnin abu

(1) Fim ɗin PET
Fim ɗin BOPET yana da ɗayanmafi girman ƙarfin ƙarfina duk fina-finai na filastik, kuma suna iya saduwa da buƙatun samfuran bakin ciki sosai tare da babban ƙarfi da tauri.

Kyakkyawan sanyi da juriya mai zafi.Matsakaicin zafin jiki na fim ɗin BOPET daga 70 ℃-150 ℃, wanda zai iya kula da kyawawan kaddarorin jiki a cikin kewayon zafin jiki mai faɗi kuma ya dace da yawancin marufi.

Kyakkyawan aikin shinge.Yana da ingantaccen aikin ruwa da katangar iska, ba kamar nailan ba wanda zafi ya shafa sosai, juriyar ruwan sa yayi kama da PE, kuma iskar sa ta iska ba ta da yawa. Yana da matukar katanga ga iska da wari, kuma yana daya daga cikin kayan kiyaye kamshi.

Juriya na sinadarai, juriya ga mai da maiko, mafi yawan kaushi da tsarma acid da alkalis.

(2) FILM BOPA
BOPA fina-finai suna da kyau kwarai tauri.Ƙarfin ƙarfi, ƙarfin hawaye, ƙarfin tasiri da ƙarfin tsagewa suna cikin mafi kyawun kayan filastik.

Fitaccen sassauci, juriya na pinhole, ba mai sauƙi ga abubuwan da ke cikin huda ba, babban fasalin BOPA ne, sassauci mai kyau, amma kuma yana sa marufi ya ji daɗi.

Kyawawan kaddarorin shinge, kyawawan kamshi, juriya ga sinadarai ban da acid mai ƙarfi, musamman ingantaccen juriyar mai.
Tare da yanayin zafi mai faɗi da yawa da wurin narkewa na 225 ° C, ana iya amfani da shi na dogon lokaci tsakanin -60 ° C da 130 ° C. Ana kiyaye kaddarorin injiniyoyi na BOPA a duka ƙananan yanayi da yanayin zafi.

Ayyukan fim ɗin BOPA yana da tasiri sosai da zafi, kuma duka kwanciyar hankali da kaddarorin shinge suna shafar zafi.Bayan fim ɗin BOPA ya kasance da danshi, ban da wrinkling, gabaɗaya zai ƙara tsayi a kwance. Rage tsayin tsayi, ƙimar elongation har zuwa 1%.

(3) CPP fim polypropylene fim, babban zafin jiki juriya, mai kyau zafi sealing yi;
CPP fim da aka jefa polypropylene fim, CPP general dafa abinci fim ta amfani da binary bazuwar copolypropylene albarkatun kasa, da fim jakar sanya daga 121-125 ℃ high-zazzabi haifuwa iya jure 30-60 minti.
CPP high-zazzabi fim dafa abinci amfani toshe copolypropylene albarkatun kasa, Ya sanya daga fim bags iya jure 135 ℃ high zafin jiki haifuwa, 30 minutes.

Abubuwan da ake buƙata na aiki sune: Vicat zafin zafi mai laushi ya kamata ya zama mafi girma fiye da zafin dafa abinci, juriya mai tasiri yakamata ya zama mai kyau, juriya mai kyau na watsa labarai, idon kifi da ma'anar crystal yakamata ya zama kaɗan gwargwadon yuwuwa.

Zai iya jure wa 121 ℃ 0.15Mpa matsa lamba dafa abinci haifuwa, kusan kula da siffar abinci, dandano, da kuma fim ba zai fashe, kwasfa, ko mannewa, yana da kyau kwanciyar hankali; sau da yawa da nailan fim ko polyester composite film, marufi dauke da miya irin abinci, da kuma nama, dumplings, shinkafa, da sauran sarrafa daskararre abinci.

(4) Aluminum Foil
Aluminum foil shine kawai foil ɗin ƙarfe a cikin kayan marufi masu sassauƙa, foil ɗin aluminum shine kayan ƙarfe, toshewar ruwa, toshewar iskar gas, toshe haske, riƙe ɗanɗano shine duk wani kayan kunshin yana da wahala a kwatanta shi. Foil na aluminum shine kawai foil ɗin ƙarfe a cikin kayan marufi masu sassauƙa. Zai iya jure wa 121 ℃ 0.15Mpa matsa lamba dafa abinci haifuwa, don tabbatar da siffar abinci, dandano, da kuma fim ba zai fashe, kwasfa, ko mannewa, yana da kyau kwanciyar hankali; sau da yawa tare da fim ɗin nailan ko hada fim ɗin polyester, marufi mai ɗauke da abincin miya, da ƙwallon nama, dumplings, shinkafa da sauran kayan daskararre da aka sarrafa.

(5) INK
Bags na steamer ta amfani da tawada na tushen polyurethane don bugu, buƙatun ƙananan kaushi mai ƙarfi, ƙarfin haɗin gwiwa, babu canza launin bayan dafa abinci, babu delamination, wrinkles, kamar zafin jiki na dafa abinci ya wuce 121 ℃, wani adadin hardener yakamata a ƙara don ƙara yawan zafin jiki. zafin jiki juriya na tawada.

Tsaftar tawada na da matukar muhimmanci, karafa masu nauyi irin su cadmium, gubar, mercury, chromium, arsenic da sauran karafa masu nauyi na iya haifar da hadari mai tsanani ga yanayin halitta da kuma jikin dan adam. Abu na biyu, tawada da kanta shine abun da ke cikin kayan, tawada nau'ikan haɗin gwiwa, pigments, dyes, nau'ikan ƙari, irin su defoaming, antistatic, filastik da sauran haɗarin tsaro. Kada a ƙyale a ƙara nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i) nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in) a ƙãra nauyin launi, glycol ether da ester mahadi. Magani na iya ƙunsar benzene, formaldehyde, methanol, phenol, linkers na iya ƙunsar diisocyanate toluene kyauta, pigments na iya ƙunsar PCBs, amines aromatic da sauransu.

(6) Adhesives
Mai daɗaɗɗen jaka ta hanyar amfani da manne polyurethane mai sassa biyu, babban wakili yana da nau'ikan nau'ikan polyester polyol, polyether polyol, polyurethane polyol. Akwai nau'ikan magunguna iri biyu: polyisocyanate aromatic da aliphatic polyisocyanate. Mafi kyawun zafin jiki mai jure yanayin zafi yana da halaye masu zuwa:

●Maɗaukaki masu ƙarfi, ƙananan danko, kyakkyawan shimfidawa.

● Babban mannewa na farko, babu asarar ƙarfin kwasfa bayan tururi, babu rami a cikin samarwa, babu wrinkling bayan tururi.

●Manne yana da lafiya cikin tsafta, ba mai guba ba kuma mara wari.

● Saurin saurin amsawa da ɗan gajeren lokacin balaga (a cikin sa'o'i 48 don samfuran samfuran filastik-roba da samfuran 72 na samfuran samfuran samfuran filastik).

●Ƙara girman shafi, ƙarfin haɗin gwiwa, ƙarfin rufewar zafi mai zafi, juriya mai kyau.

● Low dilution danko, na iya zama babban m jihar aiki, da kuma mai kyau spreadability.

● Faɗin aikace-aikacen aikace-aikacen, dace da nau'ikan fina-finai.

● Kyakkyawan juriya ga juriya (zafi, sanyi, acid, alkali, gishiri, mai, yaji, da dai sauransu).

Tsabtace na adhesives yana farawa da samar da amine na farko na aromatic amine PAA (primary aromatic amine), wanda ya samo asali ne daga halayen sinadarai tsakanin isocyanates na aromatic da ruwa a cikin bugu biyu-bangaren tawada da laminating adhesives. Samuwar PAA ya samo asali ne daga isocyanates na aromatic. , amma ba daga aliphatic isocyanates, acrylics, ko epoxy-based adhesives. Kasancewar abubuwan da ba a gama ba, ƙananan ƙwayoyin ƙwayoyin cuta da sauran kaushi na iya haifar da haɗari na aminci. Kasancewar ƙananan ƙwayoyin da ba a gama ba da sauran abubuwan kaushi kuma na iya haifar da haɗari.

3.Babban tsarin jakar dafa abinci
Dangane da kaddarorin tattalin arziki da na zahiri da sinadarai na kayan, ana amfani da sifofi masu zuwa don buhunan dafa abinci.

Yadudduka biyu: PET/CPP, BOPA/CPP, GL-PET/CPP.

Layukan Uku: PET/AL/CPP, BOPA/AL/CPP, PET/BOPA/CPP,
GL-PET/BOPA/CPP,PET/PVDC/CPP,PET/EVOH/CPP,BOPA/EVOH/CPP

LAYYA HUDU:PET/PA/AL/CPP, PET/AL/PA/CPP

Tsarin bene mai yawa.

PET / EVOH fim ɗin haɗin gwiwa / CPP, PET/PVDC fim ɗin haɗin gwiwa / CPP

4. Binciken sifofin tsarin jakar dafa abinci
Tsarin asali na jakar dafa abinci ya ƙunshi Layer Layer / matsakaici Layer / zafi sealing Layer. A saman Layer an yi shi da PET da BOPA, wanda ke taka rawa na goyon bayan ƙarfi, juriya mai zafi da bugu mai kyau. Matsakaicin Layer an yi shi da Al, PVDC, EVOH, BOPA, wanda galibi yana taka rawa na shinge, garkuwar haske, hadewar gefe biyu, da dai sauransu. An yi Layer sealing Layer na nau'ikan CPP, EVOH, BOPA, da sauransu. kan. Heat sealing Layer zaɓi na daban-daban iri CPP, co-extruded PP da PVDC, EVOH co-extruded fim, 110 ℃ kasa da dafa abinci kuma dole zabi LLDPE film, yafi taka rawa a zafi sealing, huda juriya, sinadaran juriya, amma kuma ƙananan adsorption na kayan, tsabta yana da kyau.

4.1 PET/manne/PE
Ana iya canza wannan tsarin zuwa PA / manne / PE, ana iya canza PE zuwa HDPE, LLDPE, MPE, ban da ƙaramin adadin fim ɗin HDPE na musamman, saboda yanayin juriya ta PE, gabaɗaya ana amfani dashi don 100 ~ 110 ℃ ko makamancin jakunkuna masu haifuwa; manne za a iya zaba daga talakawa polyurethane manne da tafasar manne, bai dace da nama marufi, shãmaki ne matalauta, da jakar za a wrinkled bayan steaming, da kuma wani lokacin ciki Layer na fim tsaya da juna. Mahimmanci, wannan tsarin buhun dafaffe ne kawai ko jakar da aka liƙa.

4.2 PET/manne/CPP
Wannan tsarin shi ne na hali m dafa abinci jakar tsarin, za a iya kunsasshen mafi yawan dafa abinci kayayyakin, wanda aka halin da ganuwa na samfurin, za ka iya kai tsaye ganin abinda ke ciki, amma ba za a iya kunsasshen bukatar kauce wa hasken samfurin. Samfurin yana da wuyar taɓawa, galibi yana buƙatar buga sasanninta. Wannan tsarin na samfurin ne kullum 121 ℃ haifuwa, talakawa high-zazzabi dafa abinci manne, talakawa sa dafa abinci CPP iya zama. Duk da haka, manne ya kamata ya zaɓi ƙananan raguwa na darajar, in ba haka ba da raguwa na manne Layer don fitar da tawada don motsawa, akwai yiwuwar delamination bayan tururi.

4.3 BOPA/manne/CPP
Wannan jakunkuna dafa abinci ne na yau da kullun don 121 ℃ dafa abinci haifuwa, mai kyau nuna gaskiya, taushi taɓawa, mai kyau huda juriya. Hakanan ba za a iya amfani da samfurin ba don buƙatar guje wa fakitin samfurin haske.

Saboda da BOPA danshi permeability ne babba, akwai buga kayayyakin a cikin tururi sauki don samar da launi permeability sabon abu, musamman ja jerin tawada shigar azzakari cikin farji, samar da tawada sau da yawa bukatar ƙara da curing wakili don hana. Bugu da ƙari, saboda tawada a cikin BOPA lokacin da mannewa ya yi ƙasa, amma kuma yana da sauƙi don samar da abin da ya faru na anti-stick, musamman a yanayin zafi mai zafi. Dole ne a rufe samfuran da aka kammala da jakunkuna da aka gama aiki kuma a tattara su.

4.4 KPET/CPP, KBOPA/CPP
Ba a saba amfani da wannan tsarin ba, bayyanar samfurin yana da kyau, tare da manyan kaddarorin shinge, amma ana iya amfani da shi kawai don haifuwa ƙasa da 115 ℃, juriya na zafin jiki ya ɗan yi muni, kuma akwai shakku game da lafiyarsa da amincinsa.

4.5 PET/BOPA/CPP
Wannan tsarin samfurin yana da ƙarfi mai ƙarfi, bayyananne mai kyau, juriya mai kyau, saboda PET, BOPA shrinkage bambance-bambancen yana da girma, gabaɗaya ana amfani da shi don 121 ℃ kuma a ƙasa marufi samfurin.

Abubuwan da ke cikin kunshin sun fi acidic ko alkaline lokacin zaɓin wannan tsarin samfuran, maimakon yin amfani da tsarin da ke ɗauke da aluminum.

Za a iya amfani da manne na waje don zaɓar manne mai dafaffen, ana iya rage farashin da kyau.

4.6 PET/Al/CPP
Wannan shi ne mafi hankula ba m dafa abinci jakar tsarin, bisa ga daban-daban tawada, manne, CPP, dafa abinci zafin jiki daga 121 ~ 135 ℃ za a iya amfani da a cikin wannan tsarin.

PET/bangare ɗaya tawada/manne zafin jiki mai ƙarfi/Al7µm/tsarin manne zafin zafin jiki/CPP60µm tsarin zai iya kaiwa 121℃ bukatun dafa abinci.

PET/Kayan kashi biyu/Maɗaukakin zafin jiki / Al9µm/Maɗaukakin zafin jiki mai ƙarfi / Tsarin zafin jiki mai ƙarfi CPP70µm na iya zama sama da 121 ℃ zafin dafa abinci, kuma kayan katangar ya karu, kuma an tsawaita rayuwar shiryayye, wanda zai iya zama fiye da shekara guda.

4.7 BOPA/Al/CPP
Wannan tsarin yana kama da tsarin 4.6 na sama, amma saboda babban shayar ruwa da raguwar BOPA, bai dace da dafa abinci mai zafi sama da 121 ℃ ba, amma juriya na huda ya fi kyau, kuma yana iya saduwa da buƙatun 121 ℃ dafa abinci.

4.8 PET/PVDC/CPP, BOPA/PVDC/CPP
Wannan tsarin shingen samfurin yana da kyau sosai, ya dace da 121 ℃ da haɓakar zafin jiki mai zuwa, kuma oxygen yana da buƙatun shinge na samfur.

PVDC a cikin tsarin da ke sama za a iya maye gurbinsa da EVOH, wanda kuma yana da babban katanga, amma katangarsa yana raguwa a fili lokacin da aka haifuwa a babban zafin jiki, kuma BOPA ba za a iya amfani da shi azaman Layer Layer ba, in ba haka ba kayan shinge yana raguwa sosai. tare da karuwar zafin jiki.

4.9 PET/Al/BOPA/CPP
Wannan babban aikin ginin buhunan girki ne wanda zai iya tattara kusan kowane kayan dafa abinci kuma yana iya jure zafin dafa abinci a digiri 121 zuwa 135.