Application Cases of PS Plastic Sheets in Thermoformed Cosmetic Packaging Boxes

Background Introduction

Cosmetic packaging is not only about displaying the appearance, it also needs to be protective, functional and environmentally friendly. As consumers’ requirements for cosmetic quality and brand continue to increase, packaging design and material selection have become particularly important. PS plastic sheet (polystyrene), as a common thermoforming material, has become an ideal choice for cosmetic packaging boxes due to its excellent formability and excellent processing performance.

Introduction to PS Plastic Sheet

PS plastic sheet is a thin sheet produced by extrusion molding of polystyrene (PS) resin, with excellent formability, transparency and strong processability. PS plastic sheet has the characteristics of light weight, strong rigidity, good stability and low cost, making it widely used in various packaging products, especially in the field of cosmetic packaging with high requirements for appearance and quality.

In cosmetic packaging, PS plastic sheet is usually made into packaging boxes of various shapes through thermoforming or vacuum forming processes, which can meet the needs of different industries, such as exquisite skin care boxes, makeup containers, lipstick trays, etc. The transparency and good surface treatment performance of PS sheet make it very suitable for exquisite packaging design.

Customer needs

A high-end cosmetics brand wants to launch a stylish and unique packaging box for its new season skin care series. The brand emphasizes high-end and environmental protection, and requires the packaging box to not only fully display the exquisite appearance of the skin care products, but also have excellent protection to avoid damage during transportation, and at the same time be recyclable, in line with the brand’s environmental protection concept. In order to achieve these goals, the customer decided to choose PS plastic sheet and make the packaging box through thermoforming.

Advantages of PS plastic sheet

Excellent transparency
PS plastic sheet has high transparency, which can clearly show the color, texture and texture of the cosmetics themselves, increasing the visual appeal of the product. The transparent packaging allows consumers to intuitively feel the high-end and pureness of the product.

Easy to thermoform
PS plastic sheet has excellent molding performance and can accurately produce complex packaging shapes through thermoforming. Whether it is a simple rectangular box or a unique shape with exquisite details, PS sheet can easily achieve it, ensuring the perfect presentation of packaging design.

Rigidity and strength
PS sheets are rigid and have high surface hardness, which not only makes the packaging box have a good display effect in appearance, but also effectively protects the internal cosmetics from external impact and reduces the risk of damage.

Economical
Compared with other high-end plastic materials, PS plastic sheets are moderately priced and have a high cost-effectiveness. Therefore, customers can control costs and optimize production efficiency while ensuring packaging quality.

Recyclability
PS materials have good recyclability, which meets the needs of modern society for environmentally friendly packaging materials. With the improvement of environmental awareness, the use of recyclable materials has become a responsibility and trend for cosmetics brands.

Surface treatment and printing performance
PS sheets have good surface treatment performance and can support different types of surface treatment such as spraying, thermal transfer, screen printing, etc. Brands can add personalized features to packaging through customized designs, such as printing brand LOGO, patterns or using different surface effects.

Production process and application

In this customer’s case, the cosmetics packaging box uses 0.5mm thick PS plastic sheets. Through the thermoforming vacuum forming process, the PS sheet is heated to a certain temperature to soften it, and then it is stretched into the mold through vacuum adsorption technology to form a predetermined shape. The final packaging box is not only beautiful in appearance, but also sturdy and durable, which fully meets the customer’s design requirements for high-end cosmetic packaging.

The specific production process is as follows:

Design and mold making: According to the needs of the cosmetics brand, the designer first makes a 3D model of the packaging box, and makes a thermoforming mold based on the model.

Thermoforming molding: The PS sheet is heated to a certain temperature to make it soft. Then the softened PS sheet is stretched into shape through vacuum adsorption technology to fit closely to the mold surface.

Cooling and trimming: The formed PS sheet needs to be cooled and shaped to ensure the stability of the packaging box. After cooling, trimming and polishing are carried out to remove excess parts to ensure that the edges of the packaging box are neat and flawless.

Post-processing: According to brand requirements, the packaging box can be surface treated, such as hot stamping, silk screen printing or thermal transfer, to achieve customized design effects.

Quality inspection and packaging: After each box is completed, it will undergo a strict quality inspection to ensure that there is no damage or defects, and finally it will be packaged and sent to the customer.

Customer feedback

The customer was very satisfied after using PS plastic sheet to make cosmetic packaging boxes. Through the thermoforming process, the packaging box can not only perfectly display the exquisite appearance of the cosmetics, but also has good protection, which can effectively avoid possible damage during transportation. At the same time, the transparency of PS and the printing effect of the brand LOGO complement each other, bringing great visual impact to consumers.

The customer said that the packaging box made of PS plastic sheet perfectly fits the brand’s high-end, environmentally friendly and practical positioning. And compared with other materials, PS plastic sheet can meet its complex requirements for packaging design while maintaining a high cost-effectiveness.

Conclusion

Through this case, we can see the wide application advantages of PS plastic sheet in thermoformed cosmetic packaging boxes. It not only provides high transparency, good formability and high strength, but also meets the expectations of modern consumers for environmental protection through the use of environmentally friendly materials. For those cosmetic brands seeking high-quality, customized packaging solutions, PS plastic sheet is undoubtedly an ideal choice.

If you are also looking for materials suitable for your cosmetic packaging, PS plastic sheet will be a high-quality choice that you cannot miss.