Before entering the cleanroom, employees must first change into designated workwear, put on a protective cap, and wash their hands thoroughly. This step helps reduce dust, hair, and other contaminants from entering the production area.

Proper gowning and hand hygiene are essential to maintaining a clean and controlled environment. All staff are required to follow this procedure carefully before proceeding to the next entry step.

Dust prevention during material transfer is especially crucial to creating an organized production environment and is therefore paramount to maintaining cleanroom standards. Personnel aren’t the only items entering and leaving a cleanroom on a daily basis – raw materials, packaging materials and production equipment also constantly enter or leave as they come and go from storage facilities or production lines.

To reduce contamination risks, all materials entering or leaving a workshop must follow strict transfer procedures before being allowed in. Thorough cleaning, safe handling and controlled movement help minimize dust, foreign particles and other contaminants, helping ensure both product safety and cleanroom hygiene standards are consistently upheld.

Workers looking to transport finished or raw products in or out of a cleanroom begin by opening the inner door of an airlock and entering its chamber – this transition area helps create an additional barrier against dust particles entering through direct entry points into the cleanroom, thus decreasing direct influx.

By passing materials through an air lock first, materials can be transferred more safely, helping maintain cleanroom cleanliness and safeguard product quality during daily production operations.

After entering the air lock, the inner door must be closed before the outer door is opened. Once the materials are moved out through the outer door, the outer door should be closed immediately. This step helps maintain separation between the cleanroom and the outside environment.

By controlling the opening and closing of both doors in sequence, the air lock reduces the chance of dust, airborne particles, and external contaminants entering the cleanroom. It is an essential procedure for protecting product cleanliness and maintaining hygiene standards during material transfer.

Although the production takes place in a cleanroom, extra protection is still necessary to prevent dust, moisture, and other contaminants from entering cartons and packaging bags during transportation. To ensure product cleanliness throughout the entire shipping process, all bags are packed in a thick PE inner bag and then placed in a strong export carton.

This standard packaging method provides double protection, helping keep the products clean, dry, and well protected during storage, handling, and delivery.

Our cleanroom is strictly managed in accordance with GB 31603-2015, National Food Safety Standard – General Hygienic Regulation for the Production of Food Contact Materials and Articles. The workshop is divided into different functional areas to ensure an orderly production flow and effective hygiene control.

All materials are placed and handled in full compliance with operating standards, helping prevent cross-contamination and maintain a clean, safe, and well-organized production environment throughout the entire process.

To maintain a dust-free production environment, we have installed solid partition walls along the inner sides of the building around both the bag-making workshop and the printing workshop. This fully enclosed isolation design helps separate the production areas from external interference and supports stricter cleanroom control throughout daily operations.

At the same time, to make customer visits more convenient without affecting cleanroom management, we have added transparent viewing windows to the partition walls. Visitors can clearly observe our production environment, equipment, and on-site management from different positions outside the workshop, without entering the manufacturing area. This allows us to maintain hygiene standards while offering customers a direct and transparent view of our operations.

Finished bags are not always shipped immediately after production. In some cases, we need to wait for the customer’s shipping schedule, while for mixed orders, shipment may only be arranged after all items are completed. For this reason, proper storage of finished goods before dispatch is just as important as production itself.

To keep the storage environment clean and hygienic, each carton is additionally wrapped with a thick layer of stretch film. This extra protection helps prevent dust and insects from reaching the products, while also keeping the cartons stable and secure during storage, reducing the risk of deformation or damage caused by uneven stacking.