DAIRY PACKAGING APPLICATION
用于酸奶杯包装的 PS 片材卷
White PS sheet is a practical material for thermoformed yogurt cups, from individual servings to connected multipack containers. However, yogurt cup manufacturers do not all need the same PS formulation or surface finish. Some require conventional matte white sheet, others need easy-snap multipacks, and some specify a glossy exterior. At DESU, we manufacture PS and HIPS thermoforming sheet rolls with different material formulations and co-extruded surface options to match these application requirements.
01 Why White PS Sheet Is Used for Yogurt Cups
White PS provides a useful combination of rigidity, opacity, thermoforming suitability and material cost for chilled dairy packaging. It is widely used for single-serving yogurt cups and connected multipacks.
In our regular production, matte white PS is the standard starting option for conventional yogurt cup applications. A high-gloss surface is not necessary for every project and is usually selected when the customer has a specific appearance requirement.
The material formulation becomes particularly important for connected yogurt cups. Besides forming well, the sheet must provide a suitable balance between cup rigidity, toughness and separation behavior.
02 Matte, Easy-Snap and High-Gloss PS Sheet Options
When purchasing PS sheet for yogurt cups, buyers should distinguish between the mechanical requirements of the base material and the appearance of the sheet surface. These are separate purchasing decisions that can be combined in a customized material specification.
| 板材选项 | Material Approach | Suitable Application |
|---|---|---|
| Matte White PS | Conventional white PS/HIPS formulation with matte appearance | Standard yogurt and dairy cups |
| Easy-Snap HIPS/GPPS | GPPS added to the HIPS-based material formulation | Connected yogurt multipacks requiring easier separation |
| High-Gloss Co-Extruded PS | White PS-based sheet with a separate clear GPPS outer layer | Yogurt cups with a glossy exterior appearance |
These options are not mutually exclusive. A customer may require an easy-snap yogurt multipack with a glossy exterior, in which case both the base formulation and the surface layer need to be considered.
03 HIPS/GPPS Formulation for Easy-Snap Yogurt Multipacks
Connected yogurt cups need enough strength to remain intact during filling, packing and transportation, while allowing consumers to separate individual portions conveniently. This makes material formulation an important consideration when purchasing PS thermoforming sheet.
HIPS provides impact resistance and toughness. GPPS contributes greater rigidity and changes the separation behavior of the material. For connected yogurt cup applications requiring easier snapping, we add GPPS to the HIPS-based formulation to achieve a more suitable balance.
The aim is not simply to make the sheet more brittle. Too much GPPS can increase unwanted cracking, while a formulation that is too tough may not separate as easily as the customer expects.
| Customer Requirement | Sheet Selection Priority |
|---|---|
| Single yogurt cups | Suitable rigidity and impact resistance |
| 4 or 6 connected cups | Balanced HIPS/GPPS formulation for convenient separation |
| 8 or 12 connected cups | Stable material formulation and uniform sheet gauge |
| Easy-snap multipacks | GPPS content adjusted to the customer’s approved sample |
In our experience, an existing cup sample is more useful than a request for a fixed HIPS/GPPS ratio alone. Separation also depends on the converter’s scoring and cup geometry, so the final sheet formulation should be confirmed using representative forming and separation trials.
04 High-Gloss PS Sheet with a Clear GPPS Outer Layer
Conventional yogurt cup sheet is generally supplied with a matte white appearance in our production. When a customer requires a glossy exterior, we use a different sheet manufacturing approach.
DESU produces high-gloss PS sheet using three-extruder co-extrusion technology. A separate transparent GPPS layer is co-extruded onto the exterior side of the white PS-based sheet to create the required glossy surface.
This approach allows the base material formulation to be selected for rigidity, toughness and forming performance, while the clear GPPS outer layer provides the desired surface appearance.
| 特征 | Matte White PS | High-Gloss PS |
|---|---|---|
| 表面外观 | Conventional matte white | Glossy white exterior |
| 材料结构 | White PS-based sheet | Co-extruded sheet with clear GPPS outer layer |
| Typical buying reason | Standard dairy packaging | Specified glossy appearance |
| Approval focus | White color, gauge and forming performance | Surface gloss, forming appearance and base properties |
An important distinction is that adding GPPS to the base material for easy-snap performance is not the same as adding a separate transparent GPPS surface layer for gloss. Buyers should confirm both requirements when specifying a customized yogurt cup sheet.
05 Custom PS Sheet Roll Specifications
For yogurt cup applications, DESU supplies customized PS and HIPS sheet rolls according to the customer’s material formulation, surface finish, thickness and roll width requirements.
A preliminary thickness range of approximately 0.50–1.00 mm can be considered for conventional yogurt cup applications. The suitable gauge depends on cup depth, material formulation and the required performance. Our existing 0.7 mm white PS yogurt multipack project provides a practical reference for buyers.
| 规格 | Supply Information |
|---|---|
| Base material | PS, HIPS or customized HIPS/GPPS formulation |
| 应用 | Single cups or connected yogurt multipacks |
| 表面饰面 | Conventional matte or co-extruded high-gloss exterior |
| 颜色 | White or customer-approved color specification |
| 厚度 | Customized gauge based on material and application |
| 卷筒宽度 | Customized for the customer’s thermoforming line |
| 卷筒配置 | Core size, roll weight, diameter and export packing |
| 食品接触 | Applicable documentation for the selected grade and market |
For repeat orders, we recommend retaining the approved material formulation, white color reference and surface finish. A change in GPPS content or surface structure should be reviewed before it is introduced into an established yogurt cup application.
06 Customer Application and Sample Approval
0.7 mm White PS Sheet for 12-Cup Yogurt Packaging
DESU previously supplied 0.7 mm white PS sheet for a Middle Eastern customer’s 12-cup yogurt packaging project. This application provides a useful reference for customers sourcing white PS rolls for connected dairy multipacks.
Read the full white PS yogurt cup application case for more details.
We have also received customer approval for white PS sheet samples intended for thermoformed yogurt cups. See our yogurt cup material sample feedback 。
What to Approve Before Bulk Supply
- Base formulation and agreed sheet thickness.
- White color and matte or glossy surface appearance.
- Formed cup rigidity and resistance to unintended cracking.
- Separation behavior for connected multipacks.
For customers replacing an existing PS sheet supplier, sharing a current material specification or approved cup sample can help us identify a suitable replacement grade. This is particularly useful for easy-snap and high-gloss applications.
Manufacturing single or connected yogurt cups? Send us your cup sample, thickness, roll width, matte or glossy finish requirement and estimated purchasing quantity. We can review a suitable PS sheet roll option for your project.
联系德苏塑料 →07 常见问题
Is matte or glossy PS better for yogurt cups?
Matte white PS is our regular option for conventional yogurt cups. High-gloss co-extruded sheet is available when the customer requires a glossy exterior appearance.
Why is GPPS added to HIPS for connected yogurt cups?
GPPS helps adjust rigidity and separation behavior so individual cups can be snapped apart more conveniently. The appropriate formulation depends on the customer’s cup design and sample results.
How does DESU produce glossy white PS sheet?
We use three-extruder co-extrusion to incorporate a separate transparent GPPS exterior layer onto the white PS-based sheet, providing the required glossy surface.
Can a glossy yogurt multipack also have easy-snap properties?
Yes. The HIPS/GPPS base formulation and the glossy exterior layer can be considered separately to address both requirements. The complete material structure should be approved through the customer’s application trial.
