PP sheet application case: used in yogurt packaging boxes

Case background

In recent years, with the popularization of healthy eating concepts, yogurt, as a dairy product rich in probiotics and nutrition, has become more and more popular among consumers. In order to meet the market demand for yogurt packaging, many food manufacturers have begun to look for more environmentally friendly, safe and economical packaging materials. PP (polypropylene) sheet has become one of the preferred materials for thermoformed yogurt packaging boxes due to its excellent physical properties and sustainability.

One of our customers is a well-known yogurt producer that focuses on providing consumers with high-quality dairy products. They have strict requirements for the selection of packaging materials, not only to ensure the safe storage of yogurt, but also to meet the needs of efficiency and stability during the production process. Therefore, the customer cooperated with us to seek a PP sheet that can meet its multiple requirements for making yogurt packaging boxes.

Project Challenges

In this project, we faced several major challenges:

Material hygiene and safety:
Yogurt is a food that is easily contaminated, so the packaging material must meet strict food safety standards. The customer requires our PP sheet to have good barrier properties to prevent the intrusion of external contaminants. In addition, the material must have low migration to avoid affecting the taste and quality of yogurt.

Adaptability of production process:
The production of yogurt packaging boxes needs to be carried out through a thermoforming process. Customers require our PP sheets to maintain stable performance during the thermoforming process, not easy to deform, and to maintain consistent quality under different production conditions.

Strength and beauty of packaging boxes:
Since yogurt packaging boxes need to withstand certain pressure during transportation and storage, customers require that the packaging boxes not only have good pressure resistance, but also have high-quality surface effects to enhance the visual appeal of the product.

Introduction to PP sheets

Feuilles de PP are a polymer material widely used in the food packaging industry. Its main features include:

Excellent mechanical properties:
PP sheets have good impact resistance and rigidity, can maintain a stable shape during the thermoforming process, and are suitable for various complex mold designs.

Excellent chemical resistance:
PP sheets have good resistance to most chemicals, which can effectively prevent the ingredients in yogurt from reacting with packaging materials and ensure the purity of the product.

Good transparency and glossiness:
The specially treated PP sheet can provide excellent transparency and glossiness, making the packaging box more beautiful and attracting consumers’ attention.

Environmental protection and recyclability:
PP sheet is a recyclable environmentally friendly material that meets the requirements of modern society for sustainable development and reduces the environmental burden.

Project implementation and solution

In response to the challenges raised by customers, our team conducted in-depth research and experiments, and finally provided a customized PP sheet. First of all, in the selection of materials, we selected high-purity food-grade PP raw materials, and after strict quality control, ensured that the hygiene and safety performance of the sheet met the highest standards in the industry.

In terms of production technology, we optimized the thickness and structure of the PP sheet so that it can be evenly heated during the thermoforming process and effectively prevent the warping and deformation of the material. In addition, we also surface treated the material to improve the gloss and scratch resistance of the sheet, making the packaging box not only sturdy and durable, but also with good visual effects.

Customer evaluation

After the project was completed, the customer showed great satisfaction with our PP sheet. They said that after using our PP sheet, the overall quality of the yogurt packaging box has been significantly improved, especially in terms of safety and aesthetics, which has been widely recognized by the market. The customer also mentioned that due to the stable performance of the PP sheet in the production process, their production efficiency has been significantly improved, reducing the scrap rate and production costs.

The customer thanked our team for its professional service and technical support and expressed his willingness to cooperate further in the future. Through this cooperation, we not only consolidated our relationship with customers, but also enhanced our reputation in the field of food packaging.

This application case of PP sheet in yogurt packaging boxes demonstrates our ability to solve complex project challenges. Through continuous innovation and customized solutions, we have successfully helped customers improve the competitiveness of their products. In the future, we will continue to be committed to providing customers with high-quality PP sheets and helping more companies succeed in the fierce market competition.