Buku Lotsogolera la Zipangizo Zogwiritsira Ntchito Thumba la Vacuum ndi Kugwiritsa Ntchito Makina Opangira Vacuum a DJVAC

Chidule cha Kupaka Vacuum ndi Zipangizo za Thumba

Makina opaka vacuum (omwe amapangidwa ndi zipangizo zoyeretsera mpweya kapena zoyamwa) amachotsa mpweya m'thumba kapena m'chipinda cha chinthucho, kenako amatseka thumba kuti atseke mpweya wakunja. Izi zimawonjezera nthawi yogwiritsira ntchito mpweya mwa kuchepetsa mpweya woipa komanso kuletsa mabakiteriya kuwonongeka..Kuti izi zitheke, matumba otayira mpweya ayenera kuphatikiza zinthu zolimba zotchinga ndi kulimba kwa makina komanso kutseka kutentha kodalirika..Matumba odziwika bwino a vacuum ndi ma laminate apulasitiki okhala ndi zigawo zambiri, chilichonse chimasankhidwa chifukwa cha zinthu monga chotchinga mpweya/chinyezi, kukana kutentha, kumveka bwino komanso kulimba kwa kubowoka..

Matumba Osambitsira Madzi a Nayiloni/PE (PA/PE)

•Kapangidwe ndi Katundu:Matumba a PA/PE amakhala ndi gawo lakunja la nayiloni (polyamide) lolumikizidwa ku gawo lotsekera lamkati la polyethylene.Chigawo cha nayiloni chimapereka kubowola kwakukulu ndi kukana kupsinjika komanso chotchinga chachikulu cha okosijeni/fungo, pomwe gawo la PE limatsimikizira kutseka kwamphamvu kwa kutentha ngakhale kutentha kochepa..Poyerekeza ndi filimu ya PE yokhazikika, ma laminate a PA/PE amapereka mpweya wabwino kwambiri komanso chotchinga cha fungo komanso kukana kubowola bwino..Zimasunganso kukhazikika kwa mawonekedwe ake mu nthawi yozizira kwambiri komanso kutentha kwambiri, komanso zimapirira kutentha pang'ono panthawi yotseka.

•Mapulogalamu:Matumba a PA/PE amagwiritsidwa ntchito kwambiri pa nyama zatsopano komanso zozizira (ng'ombe, nkhumba, nkhuku, nsomba zam'madzi) chifukwa nayiloni imalimbana ndi m'mphepete mwa mafupa ndi zidutswa zakuthwa..Matumba awa amasunga mtundu wa nyama ndi kukoma kwake nthawi yayitali akasungidwa mozizira. Ndi abwino kwambiri pa tchizi ndi zakudya zotsekemera, kusunga kukoma ndi kapangidwe kake mwa kuchepetsa mpweya wolowa. Filimu yolimbayi imagwiranso ntchito pa nyama zokonzedwa, ma pâtés kapena zakudya zokonzedwa. Madzi ndi msuzi zimatha kuyikidwanso m'matumba a PA/PE; chomangira champhamvu chimaletsa kutuluka kwa madzi ndikusunga fungo labwino..Mwachidule, matumba a PA/PE amagwirizana ndi chakudya chilichonse chokhala ndi m'mbali zosakhazikika kapena zolimba (mafupa, tchipisi ta nyama) chomwe chimafunika kusungidwa mufiriji kwa nthawi yayitali kapena kuzizira.

•Ntchito Zina:Kupatula chakudya, ma laminate a PA/PE amagwiritsidwa ntchito popangira zinthu zachipatala ndi mafakitale. Filimu yolimba komanso yotchinga kwambiri imatha kutsukidwa ndi kutsekedwa kuti igwiritsidwe ntchito pazida zachipatala, pomwe mu ma paketi amagetsi imawongolera chinyezi ndikuwonjezera mphamvu zamakanika..Magawo oletsa kusinthasintha kapena oletsa kusinthasintha amatha kuwonjezeredwa pa ma circuit board kapena hardware. Mwachidule, matumba a PA/PE ndi filimu yogwira ntchito - yotchinga kwambiri komanso yolimba kwambiri - yogwirizana ndi ma vacuum sealers ambiri (chipinda kapena chakunja), zomwe zimapangitsa kuti akhale chisankho chabwino kwambiri pakulongedza vacuum wamba.

Matumba Opumulira a Polyester/PE (PET/PE)

•Kapangidwe ndi Katundu:Matumba a polyester/PE (omwe nthawi zambiri amatchedwa matumba a PET/PE kapena PET-LDPE) amagwiritsa ntchito gawo lakunja la PET (polyethylene terephthalate) yokhala ndi PE yamkati..PET ndi yowonekera bwino, yolimba komanso yokhazikika m'magawo, yokhala ndi kukana kwapadera kwa mankhwala ndi kutentha.Ili ndi chotchinga chabwino kwambiri cha okosijeni ndi mafuta, mphamvu yabwino kwambiri (5–10× mphamvu yokoka ya PE) ndipo imasunga mawonekedwe ake pa kutentha kwakukulu..Matumba a PET/PE amapereka kumveka bwino (matumba owonera mkati) komanso chotchinga chochepa.Ndi zolimba komanso zosavuta kutambasula kuposa PA/PE, kotero kukana kubowola ndikwabwino koma osati kokwera kwambiri..(Pa zinthu zomwe zili ndi nsonga zakuthwa kwambiri, gawo la nayiloni ndilobwino.)

•Mapulogalamu:Matumba oyeretsera mpweya a PET/PE ndi abwino kwambiri pazinthu zomwe zimafunakumveka bwino komanso kukana mankhwalaKawirikawiri amagwiritsidwa ntchito pa nyama yophikidwa kapena yosuta ndi nsomba komwe kumawoneka bwino, mwachitsanzo ngati kulongedza kuli kofunikira. Kulimba kwake kumapangitsa kuti zitsekeke bwino pamakina odzipangira okha..Popeza PET ili ndi kutentha kokhazikika, matumba a PET/PE amagwira ntchito pazinthu zonse zozizira komanso zozungulira (monga nyemba za khofi kapena zonunkhira zopakidwa vacuum).Amagwiritsidwanso ntchito ngati filimu yapamwamba kwambiri mu mizere yopangira vacuum yopangira thermoforming (yokhala ndi ukonde wopangira PA/EVOH/PE).

•Chidziwitso chaukadaulo:Chotchinga champhamvu cha polyester ku mpweya chimathandiza kusunga fungo labwino, koma PET/PE yeniyeni ilibe chotchinga chakuya cha mpweya komanso kulimba kwa PA/PE.Ndipotu, nthawi zina PET/PE imalimbikitsidwa pazinthu zofewa kapena zosalemera kwambiri.Mwachitsanzo, supu zodzaza ndi vacuum, ufa kapena zokhwasula-khwasula zopepuka.CarePac ikunena kuti wosanjikiza wolimba wa polyester (kapena nayiloni) umaletsa kubowoka ndipo ndi woyenera kutseka vacuum.M'machitidwe, ma processor ambiri amasankha PET/PE pazinthu zomwe zimakhala nthawi yayitali yosungiramo zinthu ndipo amagwiritsa ntchito kapangidwe kake (ngati akugwiritsa ntchito makina okoka) kuti awonjezere kutseka..Matumba a PET/PE amagwirizana ndi makina onse opaka vacuum, ngakhale kuti amagwira ntchito bwino kwambiri m'zipinda za chipinda (vacuum yambiri imatha kupezeka).

Mafilimu Okhala ndi Zitsulo Zambiri (EVOH, PVDC, ndi zina zotero)

•Matumba Ochokera ku EVOH:Kuti zinthu zizikhala nthawi yayitali, ma laminate okhala ndi zigawo zambiri amakhala ndi utomoni woteteza monga EVOH (ethylene-vinyl alcohol). Kapangidwe kake kamakhala PA/EVOH/PE kapena PE/EVOH/PE. Pakati pa EVOH pamapereka mpweya wochepa kwambiri, pomwe nayiloni kapena PET yozungulira imawonjezera mphamvu ndi kutseka kwa makina..Kuphatikiza kumeneku kumabweretsa chotchinga chachikulu kwambiri: Matumba a EVOH amachepetsa kwambiri okosijeni ndi kusamuka kwa chinyezi. Akatswiri enalipoti kuti poyerekeza ndi matumba a PA/PE, ma laminate a EVOH amathandiza kuti zinthu zisungidwe nthawi yayitali mufiriji kapena mufiriji ndipo zinthuzo zitayika pang'ono.

•Katundu:Filimu ya EVOH ndi yowonekera bwino komanso yosinthasintha, koma m'matumba otayira mpweya imakwiriridwa pakati pa zigawo zosawoneka bwino.Matumba awa amasunga umphumphu wofunikira wa chisindikizo pozizira, ndipo gawo la PE limateteza EVOH ku chinyezi.Nthawi zambiri amakhala ndi mphamvu yabwino kwambiri yoboola kuchokera ku zigawo za PA.Ponseponse, zimaposa PA/PE yosavuta mu mpweya ndi fungo lopanda kuwononga mphamvu ya chisindikizo.

•Mapulogalamu:Matumba a EVOH okhala ndi zotchinga zambiri ndi abwino kwambiri pa nyama yatsopano/yozizira, nkhuku ndi nsomba zomwe ziyenera kutumizidwa kutali kapena kusungidwa kwa nthawi yayitali. Amathandizanso pa zakudya zamtengo wapatali kapena zosakhudzidwa ndi mpweya monga tchizi, mtedza, zipatso zouma kapena zakudya zokonzedwa bwino komanso msuzi. Pa chakudya chilichonse chozizira kapena chozizira chomwe chili ndi mtundu (mtundu, kukoma, kapangidwe) chiyenera kusungidwa, thumba la EVOH ndi chisankho chotetezeka.. Zinthuzo ndi bwinoza nyama zozizira ndi mkaka, komanso zakumwa (supu, kimchi, sauces) zomwe zili m'matumba.Mwachidule, sankhani matumba a EVOH nthawi iliyonse mukafuna chotchinga chachikulu—monga zinthu za nyama zomwe zili mu sous-vide kapena zinthu zomwe zili mu sitolo kwa nthawi yayitali.

•Zopinga Zina:Makanema okhala ndi PVDC (omwe amagwiritsidwa ntchito mu tchizi kapena matumba odulidwa nyama) amaperekanso O₂ permeability yotsika, ngakhale kuti mavuto okhudzana ndi malamulo ndi kukonza zinthu ali ndi malire pakugwiritsa ntchito PVDC..Mafilimu opangidwa ndi zitsulo zotsukira (PET kapena PA yokutidwa ndi aluminiyamu) amathandizanso kuti zinthu zisamayende bwino (onani gawo lotsatira).

Matumba Otsukira Opangidwa ndi Aluminium Foil (Opangidwa ndi Metallized)

Khofi, tiyi kapena zonunkhira zotsekedwa ndi vacuum nthawi zambiri zimagwiritsa ntchito matumba okhala ndi aluminiyamu kuti zitetezedwe bwino. Zigawo za aluminiyamu zomwe zili m'thumba zimapereka chotchinga chonse ku kuwala, mpweya ndi chinyezi. Matumba ofala a vacuum okhala ndi foil amakhala ndi zigawo zitatu, mwachitsanzo PET/AL/PE kapena PA/AL/PE. Filimu yakunja ya PET (kapena PA) imapereka kukana kubowoka ndi mphamvu yamakina, foil yapakati ya AL imatseka mpweya ndi kuwala, ndipo PE yamkati imatsimikizira kutsekedwa koyera kwa kutentha. Zotsatira zake ndi chotchinga chachikulu kwambiri mu vacuum paketi: palibe mpweya kapena nthunzi yomwe ingalowe.

•Katundu:Matumba a aluminiyamu-laminate amatha kukhala olimba koma opangidwa bwino; amawonetsa kutentha ndi kuwala, kuteteza ku UV ndi kusintha kwa kutentha. Ndi olemera komanso osawonekera bwino, kotero zomwe zili mkati mwake zimabisika, koma zinthu zimakhala zouma komanso zopanda okosijeni.Amagwira ntchito bwino ndi mafiriji ozama komanso odzaza ndi zinthu zotentha.(Dziwani: matumba a foil satha kuphikidwa mu uvuni pokhapokha ngati atakonzedwa mwapadera.)

•Mapulogalamu:Gwiritsani ntchito matumba a zojambulazo pazinthu zamtengo wapatali kapena zomwe zimawonongeka kwambiri. Zitsanzo zakale zikuphatikizapo khofi ndi tiyi (kuti musunge fungo labwino ndi zatsopano), zakudya zouma kapena zophikidwa mufiriji, mtedza, ndi zitsamba. Popereka chakudya, matumba a sous-vide kapena owiritsa m'matumba nthawi zambiri amagwiritsa ntchito zojambulazo. Amathandizanso kwambiri pa mankhwala ndi mavitamini. M'mafakitale, matumba a vacuum a zojambulazo amanyamula zinthu zomwe zimakhudzidwa ndi chinyezi/mpweya komanso zamagetsi..Kwenikweni, chinthu chilichonse chomwe chingawonongeke chikagwiritsidwa ntchito ndi mpweya kapena kuwala chimapindula ndi laminate ya foil. Mwachitsanzo, masamba a tiyi opakidwa vacuum (monga momwe tawonetsera pamwambapa) amasunga kukoma kwawo kwa nthawi yayitali mu thumba la foil kuposa mu pulasitiki wamba.

•Kugwirizana kwa Makina:Matumba a aluminiyamu nthawi zambiri amakhala osalala komansoena aMatumba awa amatsekedwa m'makina olemera. DJVACmakina opukutira akunja otulutsa mpweyaakhoza kukonza matumba awa popanda vuto.

Kugwiritsa Ntchito Zamakampani ndi Zakale

Ngakhale chakudya ndicho cholinga chachikulu, matumba oyeretsera mpweya okhala ndi zotchinga zambiri ali ndi ntchito zina zapadera:

•Zipangizo Zamagetsi ndi Zitsulo:Monga taonera, matumba a PA/PE kapena a foil vacuum amateteza zinthu zomwe zimakhudzidwa ndi chinyezi panthawi yotumiza. Malo osungira vacuum komanso desiccant amatha kupewa kuwonongeka kwa zitsulo kapena kuwonongeka kwa zinthu zina..Mosiyana ndi chakudya, apa munthu amathanso kutsuka ndi nayitrogeni asanatseke.Makina a DJVAC (okhala ndi zolumikizira zoyenera) amagwira zojambulazo zokhuthala kapenaaluminiyamumatumba.

•Kusunga Zikalata:Kuyika zinthu zakale nthawi zambiri kumagwiritsa ntchito mafilimu osagwira ntchito otsekedwa ndi vacuum (monga polyethylene kapena polyester/Mylar) kuti aletse mpweya ndi tizilombo toyambitsa matenda..Mwa kupanga thumba lopanda mpweya, mapepala amapewa chikasu ndi nkhungu.Mfundo yomweyi - kuchepetsa mpweya - imagwiranso ntchito monga momwe zimakhalira mu chakudya: phukusi lopanda mpweya limawonjezera moyo wautali.

•Mankhwala ndi Zachipatala:Zipangizo zachipatala zosayera zimatsekedwa ndi vacuum m'matumba okhala ndi zotchinga zambiri. Matumba a PA/PE ndi ofala kuno, nthawi zina okhala ndi zotupa zong'ambika. Filimuyo iyenera kukwaniritsa miyezo ya FDA kapena yachipatala.

Pazochitika zonsezi, chofunika kwambiri ndikugwiritsa ntchito filimu yovomerezeka malinga ndi malo omwe chinthucho chili (monga halogen yamagetsi, mtundu wa zikalata zomwe zasungidwa).Makina ochapira a DJVAC amatha kugwira mitundu yosiyanasiyana ya ma laminates ndi kukula kwake, kotero makasitomala ayenera kusankha filimu yomwe akufuna..

Kusankha Chikwama Choyenera Chotsukira Madzi

Posankha zinthu zogwiritsira ntchito thumba la vacuum, ganizirani izi:

•Zosowa Zolepheretsa:Kodi chinthucho chiyenera kukhala chatsopano kwa nthawi yayitali bwanji komanso pansi pa mikhalidwe iti? Ngati pakufunika kuzizira kwakanthawi kochepa, thumba lokhazikika la PA/PE kapena PET/PE lingakhale lokwanira.Ngati musunga zinthu zozizira kwa miyezi ingapo kapena zinthu zomwe zimakhala zovuta kwambiri, gwiritsani ntchito EVOH kapena mapepala opangidwa ndi foil okhala ndiotsika kwambiriKutumiza kwa O₂.

•Chitetezo cha Makina:Kodi chinthucho chili ndi m'mbali zakuthwa kapena chidzagwiritsidwa ntchito molimba? Kenako ganizirani ngati chingaphwanye kubowola (ma laminates okhala ndi nayiloni kapena ma texturing opangidwa ndi embossed).Ziwalo zazikulu za mafakitale kapena nyama zomwe zili m'mafupa zimafuna ma filmenti olimba.

•Njira Yotsekera:Matumba onse oyeretsera mpweya amadalira kutseka kutentha.PE (LDPE kapena LLDPE) ndi gawo lokhazikika lotsekera.Onetsetsani kuti kutentha kwa chikwamacho kukufanana ndi kutentha kwa makina anu.Makanema ena okhala ndi zotchinga zambiri angafunike kutentha kwambiri kwa chisindikizo kapena kukakamizidwa kwambiri kwa clamp.

•Chitetezo cha Chakudya ndi Malamulo:Gwiritsani ntchito mafilimu odziwika bwino okhudzana ndi zakudya omwe amavomerezedwa ndi FDA/GB.DJVAC imagwirizana ndi ogulitsa matumba omwe amapereka zinthu zovomerezeka, zolumikizirana ndi chakudya. Pamisika yotumiza kunja, mafilimu nthawi zambiri amafunikira zikalata zovomerezeka.

•Mtengo vs. Magwiridwe:Matumba a EVOH kapena a foil okhala ndi zingwe zambiri ndi okwera mtengo kwambiri.Sungani mtengo wake poyerekeza ndi zomwe zimafunika nthawi yopuma.Mwachitsanzo, mtedza wopakidwa mu vacuum womwe umapangidwira kutumiza kunja ungakhale woyenera matumba a zojambulazo, pomwe kuzizira kunyumba kungagwiritse ntchito matumba osavuta a PA/PE.

M'machitidwe, ma processor nthawi zambiri amayesa matumba a zitsanzo. Opanga ambiri amapereka mipukutu yoyesera kapena mapepala oyesera kuti makasitomala ayese.Fotokozani zomwe mwagula (monga "zidutswa za nkhuku zozizira"), nthawi yomwe mukufuna kusungiramo zinthu, ndi njira yopangira kuti mupeze kapangidwe koyenera.

Mapeto

Makina opaka vacuum ndi zida zosinthika, koma amafunikira thumba loyenera kuti ligwire bwino ntchito..Makina opaka vacuum a DJVAC amatha kugwiritsa ntchito mitundu yonse ya matumba akuluakulu pamsika - kuyambira matumba wamba a PA/PE mpaka matumba a EVOH okhala ndi zingwe zambiri komanso ma laminates olemera a foil..Mwa kumvetsetsa makhalidwe a zinthu (mphamvu ya zotchinga, kukana kutentha, kulimba kwa kubowola) ndikuzigwirizanitsa ndi ntchito (nyama, tchizi, khofi, mtedza, ndi zina zotero), opanga amatha kutsimikizira kuti zinthuzo ndi zabwino komanso zogwira ntchito bwino..Kuphatikiza apo, kugwiritsa ntchito thumba loyenera ndi makina oyenera (lokhala ndi embossed vs. flat, chipinda vs. suction) kumawonjezera kuchuluka kwa vacuum ndi sealability. Mwachidule, mukamagwiritsa ntchito makina opaka vacuum a DJVAC, sankhani zinthu zomwe zimateteza chinthu chanu komanso zomwe zikugwirizana ndi kapangidwe ka makinawo. Mwanjira imeneyi, mudzakhala ndi nthawi yayitali yosungiramo zinthu, mawonekedwe abwino komanso zisindikizo zodalirika - zonse zofunika kwambiri kuti chakudya ndi mafakitale zipambane.