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2021

Essential Insights: A Brief Discussion on the Causes of Creases in Plastic Packaging Bags

Nowadays, some manufacturers employ various promotional tactics to enhance their image, with products from plastic packaging bag companies often featured in these campaigns. However, to achieve the desired publicity effect, stringent standards are imposed on the products themselves. Let’s take a closer look.

　　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, laminating, slitting, bag-making, and related 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 product lines 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, flag‑type tapes, bird‑repellent tapes, and cable ties for air conditioners, among others.

　　Nowadays, some manufacturers employ various promotional tactics to enhance their appeal, among which… Plastic packaging bag Manufacturers’ products are often used in promotional campaigns. However, to achieve the desired marketing impact, the requirements for these products are extremely stringent. Now, let’s take a look.

　　First, it is essential to ensure that the finished product has no creases; therefore, when blow‑molding, careful control of the blow‑molding speed is required, as this is one of the factors that can compromise product stability. Second, if the angle of the V‑shaped clamping plate we use is incorrect, the center of the clamping plate will become misaligned with the centerline of the traction roller. As a result, the finished parts not only exhibit numerous creases but also suffer from dimensional inconsistencies.

　　Creases on the product can detract from the packaging’s appearance and cause issues during use. Therefore, throughout the custom‑product process, it is essential to meticulously manage every stage to ensure product quality.

　　That concludes today’s presentation. For more information, please visit our official website. Plastic packaging bag