Plastic color-printed composite packaging manufacturer and plastic flexible packaging solutions
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2021
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A Brief Discussion on Why Sealing Performance Should Be Prioritized When Custom-Making Plastic Packaging Bags
We know that companies promote themselves through various channels, and custom‑made plastic packaging bags are one of them. When using such bags, it’s important to ensure their sealability—but how can you assess the product’s performance?
Qingdao Platinum Packaging Technology Co., Ltd. is a manufacturing enterprise specializing in plastic flexible packaging, encompassing the research and development of new plastic materials, printing, lamination, slitting, bag-making, and product R&D. The company’s production base is located in the Jiaobei Industrial Park, Jiaozhou City, Qingdao, while its business operations and R&D center are situated in the Shinan District of Qingdao. With many years of experience, the company produces high‑quality plastic flexible packaging materials and comprehensive packaging solutions. Its main products include: laminated plastic packaging bags, color‑printed packaging bags, food‑grade packaging bags, vacuum‑sealed bags, retort pouches, low‑temperature frozen‑food bags, cat litter bags, and rolls of automatic packaging films for food and medical applications; as well as transfer printing films, warning tapes, flagging tapes, bird‑deterrent tapes, and cable ties for air conditioners, among others.
We know that companies promote themselves through a variety of channels, Plastic packaging bag Customization is one of them; when using it, you need to pay attention to the product’s sealing performance. But how can you assess the product’s performance?
In fact, the food packaging we see in supermarkets is almost always vacuum‑sealed, and the key factor is the product’s airtightness. If the package isn’t properly sealed, the product can spoil fairly quickly—often because the plastic film has been compromised, allowing air to leak in, or because the bag itself lacks sufficient sealing. Therefore, during production, it’s essential to rigorously control manufacturing processes, such as increasing the material thickness, and to take care during transportation to prevent sharp objects from puncturing the package, thereby enhancing its seal integrity.
The materials used to manufacture these products are all polyethylene. Because it is non‑degradable, if it becomes damaged, it can be placed in designated recycling bins for collection and reuse, thereby promoting the principle of resource circularity.
That concludes today’s presentation. For more information, please visit our official website. 
Plastic packaging bag
Qingdao SINOY Packaging Technology Co., Ltd. is a specialized manufacturer of plastic flexible packaging.
Contact Us
Factory Address: Zhuzhu Road, Jiaoxi Industrial Park, Jiaozhou City, Qingdao
Office Address: 27th Floor, No. 32 Hong Kong Middle Road, Shinan District, Qingdao City
