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plastic label

Label 1 - PET or PETE (polyethylene terephthalate): This plastic is commonly used in mineral water bottles and carbonated beverage bottles. Please note that when using, it is resistant to 70 ° C and is not suitable for high-temperature liquids or heating to avoid deformation and the dissolution of harmful substances. Label 2 - HDPE or PE-HD (High Density Polyethylene): Commonly found in medicine bottles, cleaning products and bathing product packaging.

The triangular recycling label of plastics used in contact with food is based on the identification rules formulated in accordance with GB 4807-2016 "National Food Safety Standard, Plastic Materials and Products for Food Contact". It uses circular triangular symbols No. 1 to 7 to distinguish different plastic resin types and clarify the corresponding materials. Use scenarios and safety restrictions.

The labeling of food-grade plastic materials refers to the plastic classification label that meets the national safety standards for plastics used in food contact. It is used to mark the resin type of the plastic and also proves that the plastic can safely contact food. It must be based on production certification and standards. Formal food grade attributes.

Plastic labeling is not directly related to safety, so it is impossible to say which label is the safest. Plastic numbers 1 to 7 are mainly used to distinguish different types of plastics. The plastic raw materials and application scenarios they represent are as follows: No. 1: Most used for beverage bottles. This material is relatively stable at room temperature, but may release harmful substances at high temperatures, so reuse or heating is not recommended. No. 2: Mostly used in bath products and cleaning products.

What do the logos on plastic products, such as PP,PE, and PC, mean? Which is the safest and non-toxic?

1. PP is polypropylene, PE is polyethylene, and PC is other plastic. Relatively speaking, PP is resistant to high temperatures and is safer. There are numerical signs under the plastic products, which are as follows: Number 1 PET (polyethylene terephthalate), a container made of this material is a common plastic bottle for holding soda, also commonly known as the "Baote bottle". Common mineral water bottles, carbonated beverage bottles, etc. Heat resistant to 70 ° C and are easily deformed, and substances harmful to the human body melt out.

PP (polypropylene): This material is resistant to high temperatures and is often used to make microwave-safe food containers, such as soy milk bottles, yogurt bottles and juice drink bottles. PP containers can be reused in microwave ovens after careful cleaning. PE (polyethylene): PE is often used to make plastic wrap, plastic bags and other packaging materials. It is not suitable for high temperature environments, so it should not be placed in the microwave. Plastic wrap and plastic bags should not be used repeatedly or used to heat food.

3. PC, or polycarbonate, commonly known as bulletproof glue, is an engineering plastic with the characteristics of transparency, heat resistance, and stable size. It is often used to make bulletproof vests, mobile phone lenses, buttons, etc., and is also a common material for control panels. PA, or nylon, is a polyamide that is commonly found in fiber products such as clothing, ropes, etc. In terms of plastic films, PA has good mechanical properties, but processing is difficult and the price is high.

4. PP, PE, and PVC are all English abbreviations for plastic names, and are popular terms for them by Chinese people. They are polypropylene, polyethylene, and polyvinyl chloride. For example, PTFE is polytetrafluoroethylene, FEP is a fluorinated ethylene-propylene copolymer, PVDF is polyvinylidene fluoride, ETFE is a copolymer of ethylene and tetrafluoroethylene, etc. The same reason is true. Polypropylene (PP) applications: microwave utensils, basins, plastic buckets, thermos flask shells, woven bags, etc.

5. The logo on the bottom of the plastic cup represents different plastic materials, and each material has its own specific meaning and use precautions. The following are several common plastic material logos and their meanings: "1"--PET: It is more common in mineral water bottles and beverage bottles. Heat resistant to 70℃ and can be filled with room temperature water in a short time. Do not contain acid-alkali drinks or high-temperature liquids, nor should you expose them to the sun, otherwise substances harmful to the human body will be produced.

What is the difference between pp and pc materials

In addition, the cost of PP materials is relatively low, so the price of PP trolley boxes is usually more people-friendly. PC trolley boxes are known for their high strength and toughness. PC is a thermoplastic with excellent impact resistance and maintains the integrity of the box even under extreme conditions. This means that the PC trolley box can more effectively protect the contents inside when it encounters a severe impact or falls.

The differences between materials PP and PC are: different properties, different flame retardancy, and different applications. PP with different properties: It is a polymer formed by the addition polymerization of propylene. PC: It is a polymer containing carbonate groups in its molecular chain. It can be divided into aliphatic, aromatic, aliphatic-aromatic and other types based on the structure of the ester groups. PP with different flame retardancy: flammable, melting point of 165 ° C, softens at around 155 ° C.

The core difference between PC, PP and PET water cups lies in their material characteristics and application scenarios. Among them, PP water cups have the strongest safety and adaptability. PC water cups have the risk of high temperature release. PET is more suitable for disposable room temperature packaging.### Differences in material composition The basic raw materials of the three water cups are completely different: PC water cup: made of polycarbonate and a polymer containing carbonate groups in its molecular chain.

PC and PP differ in appearance. It can be distinguished from the appearance, because PC is transparent, but PP is relatively transparent and translucent. Different scratch resistance. If you use the same force to scratch PC and PP materials, scratches will easily appear on the surface of the PC. However, PP's ability to resist scratches is slightly higher, so the material is not easy to break. Different high temperature resistance.

Polypropylene (PP) and polycarbonate (PC) are two different plastic materials with different properties, characteristics and uses. Property differences: PP is a polymer formed by the addition polymerization of propylene; PC is a polymer compound containing a carbonate group. Characteristic differences: PP has excellent chemical resistance, heat resistance, electrical insulation, as well as high strength and wear resistance.

PP and PC each have advantages, and which one is better depends on specific needs and usage scenarios. Advantages of PP (polypropylene): Light and durable: PP is lightweight and easy to carry. It also has good durability and is not easy to damage after long-term use. Low cost: Compared with other materials, PP materials have lower cost, so product prices are usually more people-friendly.

What are the uses of PC plastic materials

1. PC plastic, also known as polycarbonate, is widely used in daily necessities, such as common kettles, space cups and milk bottles. In department stores, cups of this material are often used as gifts. However, PC plastic needs to be used with caution because it may release bisphenol A, a toxic substance that is harmful to the human body. Therefore, when using PC plastic products, it is necessary to avoid heating them or exposing them directly in the sun.

2. PC plastic: Good transparency: It is often used to make transparent or translucent products such as phone case, notebook computer case, milk bottles, and space cups. Average thermal stability: Avoid using PC water bottles to hold hot water to prevent residual bisphenol A from being released at high temperatures. PP plastic: Good thermal stability: made of polypropylene material, suitable for use in microwave ovens.

3. Application: It belongs to engineering plastics and is widely used in phone case, notebook case, milk bottle, space cup, etc. Crystallization of PP materials: Isotactic crystallization.

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