一次性紙質餐盒的安全性并非 “絕對安全” 或 “絕對有害”，而是取決于材料品質、生產規范與使用方式。在合規使用前提下，其風險可控且顯著低于劣質塑料餐盒。消費者需關注產品資質，根據食物特性選擇合適類型，而行業則需通過技術創新推動安全性與環保性的協同提升，讓 “以紙代塑” 真正實現 “安全減塑” 的目標。

The safety of disposable paper meal boxes is not "absolutely safe" or "absolutely harmful", but depends on the quality of materials, production standards, and usage methods. Under the premise of compliant use, its risk is controllable and significantly lower than that of inferior plastic lunch boxes. Consumers need to pay attention to product qualifications and choose appropriate types based on food characteristics, while the industry needs to promote the synergistic improvement of safety and environmental protection through technological innovation, so that the goal of "replacing plastic with paper" can truly achieve the goal of "safe plastic reduction".

1. 基礎材質的安全性差異

1. Safety differences in basic materials

原生木漿：優質餐盒多采用 100% 原生木漿，經漂白（如無氯漂白技術）處理后，纖維純凈度高，化學殘留風險低。此類材料本身不含重金屬、熒光增白劑等有害物質，符合食品接觸材料的基本安全要求。

Native wood pulp: High quality meal boxes often use 100% native wood pulp, which has been bleached (such as chlorine free bleaching technology) to achieve high fiber purity and low chemical residue risk. This type of material itself does not contain harmful substances such as heavy metals and fluorescent whitening agents, and meets the basic safety requirements for food contact materials.

再生紙漿：部分低價產品使用再生紙，可能含有油墨殘留、雜質或未完全脫除的化學藥劑（如脫墨劑中的表面活性劑）。若生產過程中未嚴格篩選，可能存在鉛、鎘等重金屬遷移風險，或殘留二噁英類污染物（盡管現代工藝已大幅降低此類風險）。

Recycled pulp: Some low-priced products use recycled paper, which may contain ink residue, impurities, or incompletely removed chemical agents (such as surfactants in de ink agents). If the production process is not strictly screened, there may be risks of heavy metal migration such as lead and cadmium, or residual dioxin like pollutants (although modern technology has greatly reduced such risks).

2. 功能性涂層的關鍵作用

2. The key role of functional coatings

為實現防水、防油性能，紙質餐盒通常需覆涂一層薄膜，常見類型及安全性如下：

To achieve waterproof and oil resistant performance, paper lunch boxes usually need to be coated with a thin film. Common types and safety requirements are as follows:

PE（聚乙烯）涂層：

PE (polyethylene) coating:

最廣泛使用的涂層材料，耐溫性約 100℃，常溫下化學性質穩定，符合 GB 4806.7《食品接觸用塑料材料及制品》標準。但高溫（如超過 120℃）或接觸油脂時，可能出現輕微塑化劑（如鄰苯二甲酸酯）遷移，長期頻繁使用存在潛在健康風險。

The most widely used coating material has a temperature resistance of about 100 ℃, stable chemical properties at room temperature, and meets the GB 4806.7 "Plastic Materials and Products for Food Contact" standard. However, when exposed to high temperatures (such as over 120 ℃) or oils, slight migration of plasticizers (such as phthalates) may occur, and long-term frequent use poses potential health risks.

生物基涂層：

Biobased coating:

以玉米淀粉、聚乳酸（PLA）等可降解材料為原料，主打 “環保無塑”。其耐溫性通常低于 PE 涂層（約 70-90℃），接觸熱油時易發生涂層破損，但無塑料相關化學遷移問題，適合常溫或中溫食品包裝。

Using biodegradable materials such as corn starch and polylactic acid (PLA) as raw materials, we focus on "environmentally friendly and plastic free". Its temperature resistance is usually lower than that of PE coating (about 70-90 ℃), and it is prone to coating damage when in contact with hot oil. However, there is no plastic related chemical migration problem, making it suitable for normal or medium temperature food packaging.

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