Analysis of the printing and laminating process of yogurt PS cup sealing film

In the food packaging industry, yogurt PS (polystyrene) cup sealing film plays a pivotal role. It not only ensures the freshness and safety of yogurt during transportation, storage and sales, but also enhances the consumer experience through its exquisite design and functionality.
1. Printing: the key to information presentation and brand building
Printing is one of the core links in the production of yogurt PS cup sealing film. Through advanced printing technologies such as gravure printing or flexographic printing, manufacturers can print clear and beautiful text patterns on the sealing film. This information includes but is not limited to product information, nutritional information table, production date, shelf life, etc., which together constitute an important basis for consumers to identify and choose products.
Product information: basic information such as product name, specifications and models, to help consumers quickly identify products and avoid confusion.
Nutrient composition table: Today, with the increasing awareness of health, the nutritional composition table has become an indispensable part of food packaging. It lists in detail the nutritional content of calories, protein, fat, carbohydrates and other nutrients in the product, providing consumers with scientific dietary guidance.
Production date and shelf life: These two pieces of information are crucial to ensuring food safety. By printing on the sealing film, consumers can intuitively understand the production time and expiration date of the product, thereby avoiding the purchase of expired products.
In addition to the above practical information, the printing process also gives the sealing film the function of branding and aesthetics. Through creative design, color matching and the integration of brand logos, the sealing film can become an important carrier for brand communication and product promotion.
2. Composite: The cornerstone to ensure product performance
After printing, the layers of materials need to be combined together through a composite process to form a sealing film with specific properties and structure. In the composite process, special adhesives and specific temperature, pressure, and speed conditions are key factors.
Selection of adhesives: The performance of the adhesive directly affects the composite strength and overall performance of the sealing film. Therefore, when selecting an adhesive, it is necessary to fully consider factors such as the type, thickness, and surface treatment of the material to ensure that the adhesive can fully wet the surface of the material and form a strong bond.
Control of temperature, pressure and speed: In the composite process, temperature, pressure, and speed are key factors that affect the curing of the adhesive and the degree of material bonding. Too high a temperature may cause the material to deform or the adhesive to burn; too low a temperature may cause the adhesive to not cure completely, affecting the composite strength. Similarly, pressure and speed also need to be controlled within an appropriate range to ensure the smooth progress of the composite process and the stability of product quality.
Through precise composite processes, the layers of materials can be closely combined to form a sealing film with excellent barrier properties, heat resistance, impact resistance and other properties. These properties not only meet the basic needs of yogurt packaging, but also provide consumers with a safer and more convenient use experience.
3. Future development trends of printing and composite processes
With the continuous development of the food packaging industry and the changing needs of consumers, printing and composite processes are also constantly innovating and upgrading. On the one hand, printing technology is developing towards higher precision, higher efficiency and lower energy consumption; on the other hand, composite processes are also constantly exploring new adhesives and composite technologies to further enhance product performance and environmental friendliness.
For example, in terms of printing, the rise of digital printing technology has made it possible to customize the sealing film of yogurt PS cups. Through digital printing technology, manufacturers can quickly produce sealing films with unique patterns and texts according to consumer needs and preferences, thereby meeting the diversified needs of the market.
In terms of compounding, with the improvement of environmental awareness, more and more manufacturers are beginning to explore the use of biodegradable materials or recyclable materials for compounding. These new materials not only have excellent performance, but also can achieve resource recycling after disposal, reducing the impact on the environment.