Chengdu Xinkunda Plastic Products Co., Ltd.
Chengdu Xinkunda Plastic Products Co., Ltd.
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The environmental protection properties of PP sheets give them unique advantages in the field of food packaging. They not only conform to the trend of green development but also bring practical benefits to all links of the industrial chain.
Eco-friendly Property
PP boards are thermoplastic plastics. After being discarded, they can be recycled through physical or chemical methods. After reprocessing, they can be used again to make food packaging or other plastic products, which reduces the pollution of plastic waste to the environment, lowers the dependence on virgin plastics, and contributes to the development of a circular economy. Secondly, the low-pollution production process: the production process of PP boards consumes relatively low energy and produces less waste gas, waste water and other pollutants. It meets the environmental protection production standards, can reduce the investment of enterprises in environmental governance, and at the same time reduce the negative impact on the ecological environment. Moreover, no release of harmful substances: PP boards themselves have stable chemical properties. They will not release toxic and harmful substances during use and natural degradation after disposal (or during recycling). They will not pollute soil, water sources and air, and also avoid the potential risk of affecting food safety due to packaging material pollution. In addition, lightweight reduces carbon footprint: PP boards have low density and light weight. When used for food packaging, they can reduce energy consumption during transportation, reduce emissions of carbon dioxide and other greenhouse gases, and conform to the concept of low-carbon environmental protection.
Specific Applications
The environmental protection properties of PP boards make them widely used in various scenarios. For example, in disposable food packaging, such as takeaway lunch boxes and fruit trays, recyclable PP boards are used. After use, they can be reused through the recycling system, reducing "white pollution". In terms of reusable food containers, such as turnover boxes in the fresh food area of supermarkets and food preservation boxes for home use, PP boards are durable and easy to clean, and can be reused many times, replacing traditional disposable packaging and reducing resource consumption. In the field of food packaging films, PP boards can be processed into environmentally friendly packaging films, which are used to package bread, snacks and other foods. Such films are recyclable and degrade relatively quickly in the natural environment, reducing the long-term burden on the environment. In addition, in organic food packaging, the environmental protection properties of PP boards are consistent with their "green and natural" positioning. They can not only meet the functional requirements of packaging but also reflect the environmental protection concept of products, enhancing consumers' recognition.
Comparison of Different Materials in Food Packaging
| Material | Advantages | Disadvantages |
| PP (Polypropylene) | 1. Good temperature resistance (can withstand 100-120℃, suitable for microwave heating) | 1. Easy to deform at high temperatures, and may release trace harmful substances after long-term use |
| 2. Lightweight, easy to transport and carry | 2. Susceptible to corrosion by strong oxidizing substances, with limited service life | |
| 3. Strong chemical stability and excellent processability, can be made into various shapes (such as lunch boxes, bottles, cans, etc.) | 3. The recycling system is not perfect | |
| Paper Box | 1. Good environmental protection, easy to degrade, and friendly to the environment | 1. Poor water resistance; easy to be damaged by moisture if not compounded with other materials |
| 2. Excellent printing performance, enabling rich patterns and information display | 2. Low strength and weak impact resistance, with limited ability to protect food | |
| 3. Lightweight and low cost | 3. Poor sealing, making it difficult to preserve perishable food for a long time when used alone | |
| 4. Can be compounded with other materials (such as aluminum foil, PE film) to improve barrier and moisture resistance | ||
| Metal | 1. Extremely strong barrier property, effectively isolating oxygen, light and moisture, greatly extending the shelf life of food | 1. Heavy weight, increasing transportation costs |
| 2. High strength and good impact resistance, protecting food from physical damage | 2. High cost, especially uneconomical for small packaging | |
| 3. Recyclable and reusable, with certain environmental value | 3. Susceptible to corrosion (e.g., acidic food may rust tinplate), requiring inner wall treatment | |
| 4. Resistant to high temperature and pressure, suitable for packaging food requiring high-temperature sterilization | 4. Poor transparency, making it impossible for consumers to directly observe the state of internal food | |
| Glass | 1. Excellent chemical stability, no reaction with food at all, high safety | 1. Heavy weight, resulting in high transportation costs |
| 2. Good transparency, convenient for consumers to observe the state of food | 2. Poor impact resistance, easy to break | |
| 3. Reusable with high recycling rate | 3. High cost, especially for glass containers with special shapes | |
| 4. High temperature resistance, suitable for hot-fill food and microwave heating | 4. Strong thermal conductivity, easy to scald hands when containing high-temperature food |
