濟(jì)南復(fù)合塑料袋為什么不能按照斤數(shù)來(lái)賣？

來(lái)源：http://www.szhwtech.cn/ 日期：2025-05-04

，從生產(chǎn)過程來(lái)看，塑料袋通常采用單一材料通過簡(jiǎn)單的熱塑性成型工藝制作而成，工藝相對(duì)簡(jiǎn)單，成本較低。而復(fù)合袋則是由兩種或多種不同性質(zhì)的塑料薄膜通過粘合劑復(fù)合而成，其生產(chǎn)工藝更為復(fù)雜，需要考慮到不同材料之間的相容性、粘合力以及復(fù)合后的性能穩(wěn)定性等因素。

Firstly, from the perspective of the production process, plastic bags are usually made from a single material through a simple thermoplastic molding process, which is relatively simple and cost-effective. Composite bags are made by combining two or more plastic films with different properties through adhesives, and their production process is more complex, requiring consideration of factors such as compatibility, adhesion, and performance stability between different materials after composite.

其次，材料構(gòu)成方面，塑料袋通常是由單一的塑料材料制成，如聚乙烯（PE）或聚丙烯（PP）等，其材料成本相對(duì)較低。而復(fù)合袋則可能由多種不同性質(zhì)的塑料薄膜組成，如尼龍（Nylon）、聚酯（PET）、聚丙烯（PP）等，這些材料的和性能差異較大，從而也影響了復(fù)合袋的整體成本。

Secondly, in terms of material composition, plastic bags are usually made of a single plastic material, such as polyethylene (PE) or polypropylene (PP), which have relatively low material costs. Composite bags may be composed of various plastic films with different properties, such as nylon, polyester, polypropylene, etc. The price and performance of these materials vary greatly, which also affects the overall cost of composite bags.

再者，功能特性上，塑料袋通常只具備基本的承載和包裝功能，而復(fù)合袋則可能具有防潮、防氧化、防紫外線、耐高溫等多種特殊功能，以滿足不同商品的包裝需求。這些特殊功能需要特殊的材料和工藝來(lái)實(shí)現(xiàn)，因此也增加了復(fù)合袋的生產(chǎn)成本。

Furthermore, in terms of functional characteristics, plastic bags usually only have basic load-bearing and packaging functions, while composite bags may have various special functions such as moisture resistance, oxidation resistance, UV resistance, and high temperature resistance to meet the packaging needs of different products. These special functions require special materials and processes to achieve, which also increases the production cost of composite bags.

，從應(yīng)用領(lǐng)域來(lái)看，塑料袋通常用于包裝一些輕質(zhì)、普通的商品，如食品、日用品等。而復(fù)合袋則廣泛應(yīng)用于化工、醫(yī)藥、食品、電子等多個(gè)領(lǐng)域，特別是一些對(duì)包裝材料有特殊要求的商品，如農(nóng)藥、化肥、精密電子元件等。這些應(yīng)用領(lǐng)域的不同也決定了復(fù)合袋與塑料袋在上的差異。

Finally, from the perspective of application fields, plastic bags are usually used to package lightweight, ordinary goods such as food, daily necessities, etc. Composite bags are widely used in various fields such as chemical, pharmaceutical, food, electronics, etc., especially for some products that have special requirements for packaging materials, such as pesticides, fertilizers, precision electronic components, etc. The differences in these application areas also determine the price difference between composite bags and plastic bags.

綜上所述，由于復(fù)合袋與塑料袋在生產(chǎn)過程、材料構(gòu)成、功能特性以及應(yīng)用領(lǐng)域等方面的顯著差異，導(dǎo)致它們不能按照同樣的公斤進(jìn)行報(bào)價(jià)。復(fù)合袋因其更為復(fù)雜的生產(chǎn)工藝、多樣化的材料構(gòu)成以及特殊的功能需求，使得其生產(chǎn)成本相對(duì)較高，因此在報(bào)價(jià)上也會(huì)相應(yīng)較高。這也正是為什么復(fù)合袋不能像塑料袋那樣按照公斤報(bào)價(jià)的原因所在。

In summary, due to significant differences in production process, material composition, functional characteristics, and application fields between composite bags and plastic bags, they cannot be quoted at the same kilogram price. Composite bags have relatively high production costs due to their more complex production processes, diverse material compositions, and special functional requirements, resulting in correspondingly higher quotations. This is precisely why composite bags cannot be quoted in kilograms like plastic bags.

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