A fannin laminating mara narkewa, retorting mai zafi ya kasance matsala mai wahala a cikin 'yan shekarun nan. Duk da cewa tare da haɓaka kayan aiki, manne da fasahohi, laminating mara narkewa don filastik tare da filastik ƙasa da digiri 121 na retorting ya sami aikace-aikace da yawa a tsakanin masana'antun marufi masu sassauƙa. Bugu da ƙari, adadin masana'antun da ke amfani da PET/AL, AL/PA da Plastic/AL don retorting 121 na ℃ yana ƙaruwa.
Wannan takarda za ta mayar da hankali kan sabbin ci gaba, wuraren sarrafawa yayin masana'antu da kuma abubuwan da za su faru nan gaba.
1. Sabon ci gaba
Yanzu an raba jakunkunan gyaran fuska zuwa nau'ikan substrates guda biyu, filastik/roba da filastik/aluminum. Dangane da buƙatun GB/T10004-2008, tsarin gyaran fuska an rarraba shi zuwa matsakaicin zafin jiki mai zafi (100℃ – 121℃) da kuma matsakaicin zafin jiki (121℃ – 145℃). A halin yanzu, gyaran fuska mara narkewa ya rufe zafin jiki mai zafi 121℃ da ƙasa da zafin jiki na 121℃.
Banda kayan da aka saba amfani da su na PET, AL, PA, RCPP, waɗanda ake amfani da su don laminates masu lanƙwasa uku ko huɗu, wasu kayan kamar fina-finan aluminum masu haske, da PVC masu juyawa suna bayyana a kasuwa. Duk da cewa babu wani babban tsari na kera da amfani, waɗannan kayan suna buƙatar ƙarin lokaci da ƙarin gwaji don amfani mai yawa.
A halin yanzu, manne WD8262A/B ɗinmu yana da kyawawan layukan da aka yi amfani da su a kan substrate PET/AL/PA/RCPP, waɗanda za su iya kaiwa 121℃ retorting. Ga substrate na filastik/roba PA/RCPP, manne WD8166A/B ɗinmu yana da faffadan aikace-aikace da kuma buɗaɗɗen akwati.
Yanzu haka WD8262A/B ɗinmu ya warware matsalar ta hanyar amfani da PET/Al mai ƙarfi. Mun haɗu da masu samar da kayan aiki da yawa, mun gwada kuma mun daidaita shi sau dubu, kuma a ƙarshe mun yi WD8262A/B tare da kyakkyawan aiki. A lardin Hunan, abokan cinikinmu suna da sha'awar yin amfani da laminates na Aluminum, kuma ya fi dacewa a gare su su yi gwajin. Ga substrate na PET/AL/RCPP da aka buga, duk yadudduka an shafa su da WD8262A/B. Ga PET/PA/AL/RCPP da aka buga, ana amfani da yadudduka na PET/PA da AL/RCPP WD8262A/B. Nauyin murfin shine kusan 1.8 - 2.5 g/m2, kuma gudun yana kusa da mita 100/min – mita 120/min.
Kayayyakin Kangda marasa narkewa yanzu sun sami babban ci gaba a ƙarƙashin 128℃ kuma suna ci gaba da fuskantar ƙalubale don maganin sake juyewa a zafin jiki mai zafi na 135℃ ko da 145 ℃. Haka kuma ana kan bincike kan juriyar sinadarai.
Gwajin Aiki
| MISALI | ABUBUWAN DA KE CIKIN JINI | Ƙarfin Barewa Bayan 121℃ MAYARWA |
| WD8166A/B | PA/RCPP | 4-5N |
| WD8262A/B | AL/RCPP | 5-6N |
| WD8268A/B | AL/RCPP | 5-6N |
| WD8258A/B | AL/NY | 4-5N |
Matsaloli:
Babbar matsalar ƙera jakunkunan gyaran aluminum masu layuka huɗu ita ce nemo haɗin kayan aiki daban-daban da ya dace, gami da fina-finai, manne, tawada da kuma ruwan da ke narkewa. Musamman, ƙera PET/AL da aka buga a cikakke wannan Layer na waje shine mafi wahala. Mun saba fuskantar waɗannan lamuran, lokacin da muka ɗauki kayan aiki daga abokan ciniki zuwa dakin gwaje-gwajenmu kuma muka gwada duk abubuwan ciki har da kayan aiki, ba a sami matsala ba. Duk da haka, lokacin da muka haɗa dukkan abubuwan, aikin laminates bai gamsar ba. Sai lokacin da duk fasahohi, kayan aiki, da kayan aiki suka kasance ƙarƙashin iko gaba ɗaya, za a iya yin substrate cikin nasara. Sauran masana'antu na iya yin wannan substrate ba yana nufin kowa zai iya cimma nasara ba.
2. Ma'aunin sarrafawa yayin ƙera
1) Nauyin murfin yana kusa da 1.8 - 2.5 g/m2.
2) Danshin da ke kewaye
An ba da shawarar a daidaita danshi tsakanin kashi 40% zuwa 70%. Ruwan da ke cikin iska zai shiga cikin amsawar manne, zafi mai yawa zai rage nauyin kwayoyin halitta na manne kuma ya kawo wasu ƙananan halayen, wanda ke shafar aikin juriyar juyawa.
3) Saiti akan laminator
Dangane da injuna daban-daban, dole ne a gwada saitunan da suka dace kamar tashin hankali, matsin lamba, mahaɗa don nemo aikace-aikacen da ya dace da kuma sanya laminates su yi faɗi.
4) Bukatun fina-finai
Kyakkyawan tsari, ingantaccen ƙimar dyne, raguwa da abun ciki na danshi da sauransu duk waɗannan sharuɗɗa ne masu mahimmanci don sake yin laminating.
3. Abubuwan da ke faruwa a nan gaba
A halin yanzu, ana amfani da lamination mara narkewa a kan marufi mai sassauƙa, wanda ke da gasa mai zafi. Dangane da abubuwan da ke faruwa na mutum ɗaya, akwai hanyoyi guda uku don lamination mara narkewa a cikin ruwa.
Da farko, samfurin guda ɗaya mai ƙarin aikace-aikace. Samfuri ɗaya zai iya ƙera mafi yawan abubuwan da masana'antar marufi masu sassauƙa ke amfani da su, wanda zai iya adana lokaci mai yawa, mannewa da kuma ƙara inganci.
Abu na biyu, mafi girman aiki, wanda ke ba da juriya mai yawa ga zafi da sinadarai.
A ƙarshe, amincin abinci. Yanzu lamination mara narkewa yana da haɗari fiye da lamination tushen narkewa saboda yana da wasu ƙuntatawa akan samfuran aiki masu ƙarfi kamar jakunkunan juyawa na 135℃.
Fiye da komai, laminating mara narkewa yana haɓaka cikin sauri, sabbin fasahohi sun fito da yawa. A nan gaba, laminating mara narkewa na iya ɗaukar babban la'akari da kasuwa don marufi mai sassauƙa da sauran fannoni.
Lokacin Saƙo: Oktoba-27-2021