KUSANGALALA KWA KANJIRA WA NTCHITO YA matumba Obwezeretsa

●Amatha kusindikiza mapatani abwino kwambiri.

● Imakhala ndi nthawi yayitali (miyezi 6-12) kutentha kwa chipinda ndipo ndi yosavuta kusindikiza ndi kutsegula.

● Palibe firiji yofunikira, kupulumutsa ndalama zolipirira firiji

●N’koyenera kulongedza zakudya zamitundumitundu, monga nyama ndi nkhuku, zam’madzi, zipatso ndi ndiwo zamasamba, zakudya zosiyanasiyana zambewu, ndi soups.

● Ikhoza kutenthedwa pamodzi ndi phukusi kuti isawonongeke, makamaka yoyenera ntchito ya kumunda, maulendo, ndi zakudya zankhondo.

Kupanga thumba lathunthu lophika, kuphatikiza mtundu wa zomwe zili, kutsimikizika kwamtundu wa kumvetsetsa bwino kwa kapangidwe kazinthuzo, gawo lapansi ndi inki, kusankha zomatira, kupanga, kuyesa kwazinthu, kulongedza ndi kuwongolera njira yotsekera, etc., chifukwa cha thumba lophika kapangidwe kazinthu ndiye phata, kotero uku ndikuwunika kwakukulu, osati kungosanthula kakhazikitsidwe kagawo kakang'ono kazinthu, komanso kuwunikiranso magwiridwe antchito osiyanasiyana. zinthu zomangamanga, ntchito, Chitetezo ndi ukhondo, chuma ndi zina zotero.

1. Kuwonongeka kwa Chakudya Ndi Kutseketsa
Anthu amakhala m'malo tizilombo tating'onoting'ono, dziko lonse lapansi lazachilengedwe limakhalapo mu tizilombo tosawerengeka, chakudya mu kuberekana kwa tizilombo toposa malire, chakudya chidzawonongeka ndi kutaya edability.

Chifukwa cha kuwonongeka kwa chakudya mabakiteriya wamba ndi pseudomonas, vibrio, onse kutentha zosagwira, enterobacteria pa 60 ℃ Kutentha kwa mphindi 30 akufa, lactobacilli mitundu ina akhoza kupirira 65 ℃, 30 mphindi kutentha. Bacillus ambiri amatha kupirira 95-100 ℃, Kutentha kwa mphindi zingapo, ochepa amatha kupirira 120 ℃ pansi pa mphindi 20 za Kutentha. Kuphatikiza pa mabakiteriya, palinso bowa wambiri m'zakudya, kuphatikiza Trichoderma, yisiti ndi zina zotero. Kuonjezera apo, kuwala, mpweya, kutentha, chinyezi, mtengo wa PH ndi zina zotero zimatha kuwononga chakudya, koma chinthu chachikulu ndi tizilombo toyambitsa matenda, choncho, kugwiritsa ntchito kuphika kwapamwamba kwambiri kupha tizilombo toyambitsa matenda ndi njira yofunikira yosungira chakudya kwa nthawi yaitali. nthawi.

Kuphatikizika kwazakudya kumatha kugawidwa mu 72 ℃ pasteurization, 100 ℃ kuwiritsa kuwiritsa, 121 ℃ kutentha kwapang'onopang'ono kuphika, 135 ℃ kutentha kwapang'onopang'ono kuphika ndi 145 ℃ kopitilira muyeso-kwapamwamba-kutentha kopitilira muyeso, gwiritsani ntchito nthawi yomweyo ngati njira yotsekera - muyezo kutentha yolera yotseketsa pafupifupi 110 ℃. Malinga ndi mankhwala osiyanasiyana kusankha mikhalidwe yolera yotseketsa, zovuta kwambiri kupha mikhalidwe yolera ya Clostridium botulinum ikuwonetsedwa mu Table 1.

Table 1 Nthawi ya imfa ya Clostridium botulinum spores poyerekezera ndi kutentha

kutentha ℃	100	105	110	115	120	125	130	135
Nthawi ya imfa (mphindi)	330	100	32	10	4	80s	30s	10s

2.Steamer Bag Raw Material Makhalidwe

Zikwama zophika zotentha kwambiri zobwera ndi zinthu zotsatirazi:

Ntchito yolongedza kwa nthawi yayitali, kusungirako kokhazikika, kupewa kukula kwa bakiteriya, kukana kutentha kwapakati, etc.

Ndizinthu zabwino kwambiri zophatikizika zoyenera kuyika chakudya pompopompo.

Mayeso amtundu wofananira ndi PET/zomatira/zojambula za aluminiyamu/zomatira zomatira/nayiloni/RCPP

Chikwama chobwezeretsa kutentha kwambiri chokhala ndi magawo atatu osanjikiza PET/AL/RCPP

MALANGIZO OTHANDIZA

(1) PET kanema
Kanema wa BOPET ali ndi imodzi mwamphamvu zapamwamba kwambirimafilimu onse apulasitiki, ndipo amatha kukwaniritsa zosowa za zinthu zoonda kwambiri zolimba kwambiri komanso zolimba.

Wabwino kuzizira ndi kutentha kukana.Kutentha koyenera kwa filimu ya BOPET kumachokera ku 70 ℃-150 ℃, komwe kumatha kukhalabe ndi mawonekedwe abwino kwambiri pakutentha kwakukulu ndipo ndikoyenera kulongedza zinthu zambiri.

Kuchita bwino kwambiri zotchinga.Ili ndi ntchito yabwino kwambiri yotchinga madzi ndi mpweya, mosiyana ndi nayiloni yomwe imakhudzidwa kwambiri ndi chinyezi, kukana kwake kwamadzi kumafanana ndi PE, ndipo mpweya wake wokwanira ndi wochepa kwambiri. Ili ndi katundu wotchinga kwambiri ku mpweya ndi fungo, ndipo ndi imodzi mwazinthu zosungira kununkhira.

Kukana kwa Chemical, kugonjetsedwa ndi mafuta ndi mafuta, zosungunulira zambiri ndikuchepetsa ma acid ndi alkalis.

(2) BOPA FILM
Mafilimu a BOPA ali ndi kulimba kwambiri.Kulimba kwamphamvu, kung'ambika, mphamvu yamphamvu ndi mphamvu yophulika ndi zina mwazinthu zabwino kwambiri muzinthu zapulasitiki.

Kusinthasintha kwapadera, kukana kwa pinhole, osati kosavuta pazomwe zili mu puncture, ndi gawo lalikulu la BOPA, kusinthasintha kwabwino, komanso kupangitsa kuti ma CD amveke bwino.

Zabwino zotchinga katundu, kusungirako fungo labwino, kukana mankhwala ena kupatula ma asidi amphamvu, makamaka kukana mafuta.
Ndi kutentha kosiyanasiyana kogwirira ntchito komanso kusungunuka kwa 225 ° C, imatha kugwiritsidwa ntchito kwa nthawi yayitali pakati pa -60 ° C ndi 130 ° C. Zomwe zimapangidwira za BOPA zimasungidwa kutentha komanso kutentha kwambiri.

Mawonekedwe a filimu ya BOPA amakhudzidwa kwambiri ndi chinyezi, ndipo kukhazikika kwa mawonekedwe ndi zotchinga zonse zimakhudzidwa ndi chinyezi. Pambuyo pa filimu ya BOPA ikakhala ndi chinyezi, kuwonjezera pa makwinya, nthawi zambiri imatalika mozungulira. Kufupikitsa kwautali, kuchuluka kwa elongation mpaka 1%.

(3) CPP filimu polypropylene filimu, kutentha kukana, chabwino kutentha kusindikiza ntchito;
Kanema wa CPP yemwe amapangidwa ndi filimu ya polypropylene, filimu yophikira ya CPP yogwiritsa ntchito zida za binary mwachisawawa za copolypropylene, chikwama cha filimuyo chopangidwa ndi 121-125 ℃ kutsekereza kotentha kwambiri kumatha kupirira mphindi 30-60.
Filimu yophika yotentha kwambiri ya CPP yogwiritsa ntchito chipika cha copolypropylene, chopangidwa ndi matumba amafilimu amatha kupirira kutentha kwa 135 ℃ kutentha kwambiri, mphindi 30.

Zofunikira pakugwirira ntchito ndi: Kutentha kwa Vicat kuyenera kukhala kokulirapo kuposa kutentha kophikira, kukana kuyenera kukhala kwabwino, kukana bwino kwa media, diso la nsomba ndi kristalo kuyenera kukhala kochepa momwe kungathekere.

Ingathe kupirira 121 ℃ 0.15Mpa kuthamanga kuphika yolera yotseketsa, pafupifupi kukhalabe mawonekedwe a chakudya, kukoma, ndi filimu sadzakhala osokoneza, peel, kapena adhesion, ali bata wabwino; nthawi zambiri amakhala ndi filimu ya nayiloni kapena filimu ya poliyesitala, zoyikapo zomwe zimakhala ndi chakudya chamtundu wa supu, komanso mipira ya nyama, dumplings, mpunga, ndi zakudya zina zowundana.

(4) Chojambula cha Aluminium
Aluminiyamu zojambulazo ndi yekha zitsulo zojambulazo mu zosinthika ma CD zipangizo, zotayidwa zojambulazo ndi zinthu zitsulo, kutsekereza madzi ake, mpweya kutsekereza, kutsekereza kuwala, kukoma posungira ndi zinthu zina phukusi ndi zovuta kuyerekeza. Chojambula cha aluminiyamu ndicho chojambula chokhacho chachitsulo muzotengera zosinthika. Ingathe kupirira 121 ℃ 0.15Mpa kuthamanga kuphika yolera yotseketsa, kuonetsetsa mawonekedwe a chakudya, kukoma, ndi filimu sadzakhala osokoneza, peel, kapena adhesion, ali bata wabwino; nthawi zambiri amakhala ndi filimu ya nayiloni kapena filimu ya poliyesitala, zoyikapo zomwe zimakhala ndi chakudya cha supu, ndi mipira ya nyama, dumplings, mpunga ndi zakudya zina zowundana.

(5) INK
Matumba a Steamer omwe amagwiritsa ntchito inki yosindikizira ya polyurethane, zofunikira za zosungunulira zotsalira zotsalira, mphamvu zambiri zophatikizika, palibe kusinthika pambuyo pophika, palibe delamination, makwinya, monga kutentha kwa kuphika kumapitilira 121 ℃, kuonjezera kuchuluka kwa owumitsa. kutentha kukana kwa inki.

Ukhondo wa inki ndi wofunikira kwambiri, zitsulo zolemera monga cadmium, lead, mercury, chromium, arsenic ndi zitsulo zina zolemera zimatha kukhala pachiwopsezo chachikulu ku chilengedwe komanso thupi la munthu. Kachiwiri, inki palokha ndi zikuchokera zinthu, inki zosiyanasiyana maulalo, inki, utoto, zosiyanasiyana zina, monga defoaming, antistatic, plasticizers ndi zoopsa zina chitetezo. Sayenera kuloledwa kuwonjezera mitundu yosiyanasiyana ya pigments heavy metal, glycol ether ndi ester mankhwala. Zosungunulira zimatha kukhala ndi benzene, formaldehyde, methanol, phenol, zolumikizira zimatha kukhala ndi toluene diisocyanate yaulere, ma pigment amatha kukhala ndi ma PCB, ma amine onunkhira ndi zina zotero.

(6) Zomatira
Nthunzi Retorting thumba gulu ntchito ziwiri chigawo polyurethane zomatira, wothandizira waukulu ali mitundu itatu: poliyesitala polyol, polyether polyol, polyurethane polyol. Pali mitundu iwiri ya machiritso: onunkhira polyisocyanate ndi aliphatic polyisocyanate. Zomatira zabwino kwambiri zolimbana ndi kutentha kwa mpweya zili ndi izi:

● Zolimba zapamwamba, kukhuthala kochepa, kufalikira kwabwino.

●Kumamatira koyambirira, sikutaya mphamvu ya peel mukamawotcha, kusapanga tunnel, kusakhwinyata mukatentha.

● Zomatira ndizotetezeka mwaukhondo, sizikhala ndi poizoni komanso sizinunkhiza.

● Kuthamanga kwachangu komanso nthawi yocheperako (m'maola 48 pazinthu zapulasitiki ndi pulasitiki ndi maola 72 pazinthu za aluminiyamu ndi pulasitiki).

● Voliyumu yotsika kwambiri, mphamvu yomangirira kwambiri, mphamvu yosindikiza kutentha kwambiri, kukana kutentha kwabwino.

● Kukhuthala kocheperako, kumatha kukhala ntchito yolimba kwambiri, komanso kufalikira kwabwino.

●Mapulogalamu osiyanasiyana, oyenera mafilimu osiyanasiyana.

●Kukana bwino kukana (kutentha, chisanu, asidi, alkali, mchere, mafuta, zokometsera, etc.).

Ukhondo wa zomatira umayamba ndi kupanga choyambirira chonunkhira cha amine PAA (primary onunkhira amine), chomwe chimachokera ku zomwe zimachitika pakati pa isocyanates onunkhira ndi madzi posindikiza ma inki a zigawo ziwiri ndi zomatira laminating.Mapangidwe a PAA amachokera ku isocyanates onunkhira. , koma osati kuchokera ku aliphatic isocyanates, acrylics, kapena zomatira zochokera ku epoxy. zosamalizidwa, zinthu zochepa za mamolekyu ndi zosungunulira zotsalira zingayambitsenso ngozi. Kukhalapo kwa mamolekyu otsika osamalizidwa ndi zosungunulira zotsalira kungayambitsenso ngozi.

3.Mapangidwe akuluakulu a thumba lophika
Malingana ndi chuma ndi thupi ndi mankhwala azinthu, zigawo zotsatirazi zimagwiritsidwa ntchito pophika matumba.

Zigawo ziwiri: PET/CPP,BOPA/CPP,GL-PET/CPP.

Zigawo zitatu: PET/AL/CPP, BOPA/AL/CPP, PET/BOPA/CPP,
GL-PET/BOPA/CPP,PET/PVDC/CPP,PET/EVOH/CPP,BOPA/EVOH/CPP

ZITSANZO ZINA: PET/PA/AL/CPP, PET/AL/PA/CPP

Mipikisano storey kapangidwe.

PET/EVOH filimu yowonjezeredwa /CPP, PET/PVDC filimu yopangidwa pamodzi /CPP,PA/PVDC filimu yosakanikirana /CPP PET/EVOH filimu yosakanikirana, PA/PVDC filimu yosakanikirana

4. Kuwunika kwa mapangidwe a thumba lophika
Mapangidwe a thumba lophikira amakhala ndi pamwamba / wosanjikiza wapakatikati / wosindikiza kutentha. Zosanjikiza pamwamba nthawi zambiri zimapangidwa ndi PET ndi BOPA, zomwe zimagwira ntchito yothandizira mphamvu, kukana kutentha komanso kusindikiza bwino. Chigawo chapakati chimapangidwa ndi Al, PVDC, EVOH, BOPA, yomwe makamaka imagwira ntchito yotchinga, kutchinga kuwala, kuphatikizika kwa mbali ziwiri, ndi zina zotero. pa. Kutentha kusindikiza wosanjikiza kusankha mitundu yosiyanasiyana ya CPP, co-extruded PP ndi PVDC, EVOH co-extruded filimu, 110 ℃ m'munsimu kuphika komanso kusankha LLDPE filimu, makamaka kuchita nawo kutentha kusindikiza, kukana puncture, kukana mankhwala, komanso otsika adsorption zinthu, ukhondo ndi wabwino.

4.1 PET/glue/PE
Kapangidwe kameneka kakhoza kusinthidwa kukhala PA / guluu / PE, PE ikhoza kusinthidwa kukhala HDPE, LLDPE, MPE, kuwonjezera pa filimu yaying'ono yapadera ya HDPE, chifukwa cha kukana kwa kutentha ndi PE, yomwe imagwiritsidwa ntchito pa 100 ~ 110 ℃ kapena matumba osabala; zomatira akhoza kusankhidwa wamba polyurethane guluu ndi otentha guluu, si oyenera ma CD nyama, chotchinga ndi osauka, thumba adzakhala makwinya pambuyo nthunzi, ndipo nthawi zina mkati wosanjikiza filimu kumamatirana. Kwenikweni, kapangidwe kameneka kamangokhala thumba lophika kapena thumba la pasteurized.

4.2 PET / glue / CPP
Izi dongosolo ndi lililonse mandala kuphika thumba dongosolo, akhoza mmatumba ambiri kuphika mankhwala, amene amakhala ndi kuonekera kwa mankhwala, mukhoza kuona mwachindunji nkhani, koma sangathe mmatumba ayenera kupewa kuwala kwa mankhwala. Chogulitsacho ndi chovuta kuchigwira, nthawi zambiri chimafunika kukhomerera ngodya zozungulira. Kapangidwe ka mankhwala nthawi zambiri 121 ℃ yotseketsa, wamba mkulu kutentha kuphika guluu, wamba kalasi kuphika CPP akhoza kukhala. Komabe, guluu ayenera kusankha yaing'ono shrinkage mlingo wa kalasi, apo ayi mkangano wa guluu wosanjikiza kuyendetsa inki kusuntha, pali kuthekera delamination pambuyo nthunzi.

4.3 BOPA/glue/CPP
Ichi ndi matumba ophikira owoneka bwino a 121 ℃ ophikira ophikira, kuwonekera bwino, kukhudza kofewa, kukana kwabwino. The mankhwala komanso sangagwiritsidwe ntchito kufunika kupewa kuwala mankhwala ma CD.

Chifukwa BOPA chinyezi permeability ndi lalikulu, pali kusindikizidwa mankhwala mu nthunzi zosavuta kubala mtundu permeability chodabwitsa, makamaka mndandanda wofiira wa inki malowedwe pamwamba, kupanga inki zambiri ayenera kuwonjezera wothandizila kuchiritsa kupewa. Komanso, chifukwa inki mu BOPA pamene adhesion ndi otsika, komanso zosavuta kubala odana ndi ndodo chodabwitsa, makamaka mu chikhalidwe chinyezi mkulu. Zogulitsa zomwe zamalizidwa pang'ono komanso matumba omalizidwa omwe akukonzedwa ayenera kusindikizidwa ndi kupakidwa.

4.4 KPET/CPP, KBOPA/CPP
Kapangidwe kameneka sikamagwiritsidwa ntchito nthawi zambiri, kuwonekera kwa mankhwalawa ndikwabwino, komwe kumakhala ndi zotchinga zambiri, koma kumatha kugwiritsidwa ntchito ngati chotchinga pansi pa 115 ℃, kukana kutentha kumakhala koyipa pang'ono, ndipo pali kukayikira za thanzi ndi chitetezo.

4.5 PET/BOPA/CPP
Kapangidwe ka mankhwala ndi mkulu mphamvu, bwino mandala, zabwino puncture kukana, chifukwa PET, BOPA shrinkage mlingo kusiyana lalikulu, zambiri ntchito 121 ℃ ndi pansi ma CD mankhwala.

Zomwe zili mu phukusi zimakhala za acidic kapena zamchere pamene kusankha kwa kapangidwe kazinthu kameneka, m'malo mogwiritsa ntchito aluminium-munali.

Gulu lakunja la guluu lingagwiritsidwe ntchito posankha guluu wophika, mtengo wake ukhoza kuchepetsedwa moyenera.

4.6 PET/Al/CPP
Uwu ndiye mawonekedwe a thumba ophikira osawoneka bwino, malinga ndi inki zosiyanasiyana, guluu, CPP, kutentha kophika kuchokera ku 121 ~ 135 ℃ kungagwiritsidwe ntchito.

PET / gawo limodzi la inki / zomatira zotentha kwambiri / Al7µm / zomatira zotentha kwambiri/CPP60µm zimatha kufikira 121 ℃ zofunika kuphika.

PET/Zigawo ziwiri za inki/Zomatira zotentha kwambiri/Al9µm/Zomatira zotentha kwambiri/Kutentha kwambiri kwa CPP70µm zimatha kupitilira kutentha kwa 121 ℃, ndipo chotchingacho chimachulukitsidwa, ndipo moyo wa alumali umakulitsidwa. kupitilira chaka chimodzi.

4.7 BOPA/Al/CPP
Kapangidwe kameneka ndi kofanana ndi kamangidwe kameneka ka 4.6, koma chifukwa cha kuyamwa kwakukulu kwa madzi ndi kuchepa kwa BOPA, sikoyenera kuphika kutentha kwambiri pamwamba pa 121 ℃, koma kukana kwa puncture kuli bwino, ndipo kumatha kukwaniritsa zofunikira za 121 ℃ kuphika.

4.8 PET/PVDC/CPP,BOPA/PVDC/CPP
Kapangidwe ka mankhwala chotchinga ndi zabwino kwambiri, oyenera 121 ℃ ndi zotsatirazi kutentha kutentha yolera yotseketsa, ndi mpweya ali mkulu chotchinga zofunika za mankhwala.

The PVDC mu dongosolo pamwamba akhoza m'malo ndi EVOH, amenenso ali mkulu chotchinga katundu, koma chotchinga katundu wake amachepetsa mwachionekere pamene chosawilitsidwa pa kutentha, ndipo BOPA sangagwiritsidwe ntchito ngati pamwamba wosanjikiza, apo ayi chotchinga katundu amachepetsa kwambiri. ndi kuwonjezeka kwa kutentha.

4.9 PET/Al/BOPA/CPP
Uku ndikumanga kwa zikwama zophikira zogwira mtima kwambiri zomwe zimatha kuyika chilichonse chophikira komanso zimatha kupirira kutentha kwa kutentha pa 121 mpaka 135 digiri Celsius.