The hygiene standards for food injection molding usually cover the following aspects:

** 1. Raw material standard **

1. The plastic raw materials used should meet the relevant national food safety standards, such as the National Food Safety Standard for Food Contact Plastic Materials and Products.

For example, for common food-contact plastics such as polyethylene (PE) and polypropylene (PP), the residual amounts of monomers and additives should be within the specified limits.

2. Raw materials should have good stability and will not release substances harmful to human body under normal conditions of use.

** 2. Production environment standard **

1. The production workshop should be kept clean, dry, free of odor and pollution sources.

Floors, walls and ceilings shall be made of easy-to-clean, corrosion-resistant materials, and shall be cleaned and disinfected regularly.

- The air in the workshop should be filtered and purified to meet certain cleanliness requirements.

2. Effective pest, rat and dust prevention facilities should be provided to prevent external pollutants from entering the production area.

3, equipment and mold standards **

1. Injection molding equipment should be regularly maintained and cleaned to ensure its normal operation and will not cause pollution to the product.

- The lubricating oil and coolant of the equipment should be food-grade products.

2. The mold should be made of corrosion-resistant and easy to clean materials with smooth surface without cracks and defects.

- The mold should be thoroughly cleaned and disinfected before and after use.

4. Production process standard **

1. Process parameters such as temperature, pressure and injection speed should be strictly controlled in the production process to ensure stable product quality.

- Avoid plastic decomposition or harmful substances due to improper process.

2. The operator shall abide by the hygienic operation procedures and wear the required work clothes, gloves, masks, etc.

3. Intermediate products and finished products should take protective measures during storage and transportation to prevent contamination.

Five, product quality standards **

1. The appearance of injection molded products should be complete, without damage, deformation and foreign body attachment.

- For example, food containers should not have burrs, sharp edges and other defects that may cause harm to the human body.

2. The physical properties (such as strength, tightness) and chemical properties (such as migration of harmful substances) of the product should meet the relevant standards.

- For example, food packaging materials under certain conditions, the amount of harmful substances such as heavy metals and plasticizers transferred to food should be lower than the specified limit value.

For example, an injection molded plastic bucket used to hold cooking oil needs to be tested to ensure that during storage and use, there will not be more than a limited amount of plastic components migrating into the cooking oil, affecting the quality and safety of the cooking oil.

These hygiene standards are designed to ensure the safety and reliability of food injection molding products and protect the health of consumers.