連卷的方便袋是我們?nèi)粘Ｉ钪泻艹Ｒ?jiàn)的一種塑料袋，例如在里買(mǎi)的東西的時(shí)候看到的都是用這種連卷的方便袋包裝好以后銷售的食品。連卷的方便袋一般使用HDPE材質(zhì)為原料，是一種結(jié)晶度高、非性的熱塑性樹(shù)脂。高密度聚乙烯為無(wú)味、無(wú)臭的白色顆粒，熔點(diǎn)約為130℃，它具有良好的耐熱性和耐寒性，化學(xué)穩(wěn)定性好，還具有較高的剛性和韌性，機(jī)械強(qiáng)度好。

The continuous roll convenience bag is a very common plastic bag in our daily life. For example, when we buy things in the supermarket, we see the food packaged with this continuous roll convenience bag. Continuous roll convenience bags generally use HDPE as raw material, which is a thermoplastic resin with high crystallinity and non plasticity. HDPE is tasteless and odorless white particles with a melting point of about 130 ℃. It has good heat and cold resistance, good chemical stability, high rigidity and toughness and good mechanical strength.

1、雙向拉伸聚丙烯BOPP：透明度高，抗拉伸，耐寒，耐熱，-40度-120度；

1. Biaxially oriented polypropylene BOPP: high transparency, tensile resistance, cold resistance, heat resistance, - 40 ℃ - 120 ℃;

2、雙向拉伸聚丙烯消光膜：反光度小，呈半透明狀，具有消光效果的薄膜；

2. Biaxially stretched polypropylene extinction film: a film with low reflectivity, translucent and extinction effect;

3、流延聚丙烯CPP：光澤良，透明度好，具有熱封性，流延高溫膜適用于蒸煮包裝；

3. Cast polypropylene CPP: good gloss, good transparency and heat sealing. Cast high temperature film is suitable for cooking packaging;

4、聚乙烯PE：透明，光澤性好，具有熱封性，耐寒；

4. Polyethylene PE: transparent, good gloss, heat sealing and cold resistance;

5、聚酯膜PET：具有抗張力，耐熱60-150度，氣密性良，適合蒸煮性，沒(méi)熱封性；

5. Polyester film PET: with tension resistance, heat resistance of 60-150 degrees, good air tightness, suitable for cooking, no heat sealing;

6、尼龍PA或NY：無(wú)色，透明度高，耐寒，耐熱，耐油，可蒸煮。易吸潮，沒(méi)熱封性。

6. Nylon PA or NY: colorless, high transparency, cold resistance, heat resistance, oil resistance, cooking. Easy to absorb moisture, no heat sealing.

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