Kodi matumba apulasitiki amawunikidwa bwanji? Ndi chiyanikuyendera miyezozamatumba apulasitiki omwe amagwiritsidwa ntchito popakira chakudya?
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Kutengera miyezo ndi magulu
1. Muyezo wapakhomo woyendera thumba la pulasitiki: GB/T 41168-2021 Pulasitiki ndi filimu yopangidwa ndi aluminiyamu ndi chikwama cholongedza chakudya
2. Gulu
-Malinga ndi kapangidwe kake: Matumba apulasitiki a chakudya amagawidwa m'kalasi A ndi Gulu B molingana ndi kapangidwe kake
-Yosankhidwa ndi kutentha kwa ntchito: Matumba apulasitiki a chakudya amagawidwa m'magulu otentha, kalasi yotentha kwambiri, ndi kutentha kwapamwamba kwambiri malinga ndi kutentha kwa ntchito.
Maonekedwe ndi mmisiri
- Yang'anani pansi pa kuwala kwachilengedwe ndikuyezera ndi chida choyezera cholondola chosachepera 0.5mm:
-Makwinya: Makwinya apakati pang'ono amaloledwa, koma osapitilira 5% yazomwe zili pamtunda;
-Kukwapula, kupsya, kubaya, zomatira, zinthu zakunja, delamination, dothi siziloledwa;
-Kukhazikika kwa mpukutu wa filimu: palibe kutsetsereka pakati pa mipukutu ya filimu posuntha;
-Kulimbitsa kowonekera kwafilimu: Kulimbitsa pang'ono kowonekera komwe sikumakhudza kugwiritsidwa ntchito kumaloledwa;
-Kusagwirizana kwa nkhope ya mpukutu womaliza: osaposa 2mm;
-Kutentha kusindikiza gawo la thumba kumakhala lathyathyathya, popanda kusindikiza kotayirira, ndipo kumalola thovu lomwe silimakhudza kugwiritsidwa ntchito kwake.
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Packaging/Identification/Labeling
Phukusi lililonse lazinthuzo liyenera kutsagana ndi chiphaso chogwirizana ndikuwonetsa dzina lazogulitsa, gulu, mawonekedwe, momwe amagwiritsidwira ntchito (kutentha, nthawi), kuchuluka, mtundu, nambala ya batch, tsiku lopanga, nambala yowunikira, gawo lopanga, adilesi yopangira. , nambala yoyeserera, etc.
Zofunikira zakuthupi ndi zamakina
1. Kununkhira kwachilendo
Ngati mtunda kuchokera pachiyesocho ndi wosakwana 100mm, yesani kuyesa kununkhiza ndipo palibe fungo lachilendo.
2.Cholumikizira
3.Kuyendera thumba lapulasitiki - kupatuka kwa kukula:
3.1 Kupatuka kwa kukula kwa kanema
3.2 Kupatuka kwa kukula kwa matumba
Kupatuka kwa kukula kwa thumba kuyenera kutsatira zomwe zili patsamba ili pansipa. Kutentha kwa chikwama chosindikizira kutentha kumayesedwa ndi chida choyezera ndi kulondola kosachepera 0.5mm.
4 Kuyang'anira Chikwama cha Pulasitiki - Katundu Wakuthupi ndi Wamakina
4.1 Peel mphamvu ya thumba
4.2 Kutentha kosindikiza mphamvu ya thumba
4.3 Kulimba kwamphamvu, kupsinjika mwadzina pa nthawi yopuma, mphamvu yong'amba kumanja, ndi kukana mphamvu ya pendulum
kalembedwe utenga yaitali Mzere mawonekedwe, ndi kutalika kwa 150mm ndi m'lifupi 15mm ± 0.3mm. Kutalikirana pakati pa kalembedwe kake ndi 100mm ± 1mm, ndipo kuthamanga kwa kalembedwe ndi 200mm/min ± 20mm/min.
4.4 Pulasitiki thumba lamadzi mpweya permeability ndi mpweya permeability
Pa kuyesera, kukhudzana pamwamba okhutira ayenera kukumana otsika kuthamanga mbali kapena otsika ndende mbali ya nthunzi madzi, ndi mayeso kutentha 38 ° ± 0.6 ° ndi chinyezi wachibale wa 90% ± 2%.
4.5 Kukaniza kukana kwamatumba apulasitiki
4.6 Kusiya kugwira ntchito kwamatumba apulasitiki
4.7 Kukana kutentha kwamatumba apulasitiki
Pambuyo poyesa kukana kutentha, pasakhale kusinthika kodziwikiratu, kupindika, kusenda pakati, kapena kusenda kosindikiza kutentha ndi zochitika zina zachilendo. Pamene chisindikizo chachitsanzo chathyoledwa, m'pofunika kutenga chitsanzo ndikuchibwezeretsanso.
Kuchokera ku chakudya chatsopano kupita ku chakudya chokonzekera kudya, kuchokera kumbewu kupita ku nyama, kuchokera ku phukusi la munthu kupita ku zonyamula katundu, kuchokera ku chakudya cholimba kupita ku chakudya chamadzimadzi, matumba apulasitiki akhala gawo lazakudya. Zomwe zili pamwambazi ndi miyezo ndi njira zowunikira matumba apulasitiki omwe amagwiritsidwa ntchito popaka zakudya kuti atsimikizire chitetezo cha chakudya.
Nthawi yotumiza: Jul-26-2024