Plastique Jinmai
La feuille creuse PP est une feuille de plastique ondulée légère en polypropylène.. It is also called PP corrugated sheet, feuille de coroplaste, fluted polypropylene sheet or plastic cardboard sheet. For packaging buyers, it is mainly used to make reusable boxes, inserts de séparation, couches de tampons, printed signs, floor protection sheets and custom industrial packaging.
Unlike paper cardboard, PP hollow sheet is water-resistant, washable and suitable for repeated handling. On peut le couper, froissé, soudé, printed or assembled into different packaging structures according to product size and loading requirements.
Jinmai Plastic manufactures PP hollow sheet and custom corrugated plastic packaging in Guangdong, Chine. This guide is written for packaging buyers who need to compare material options, choose sheet thickness and prepare clearer quotation requirements before ordering.
Qu'est-ce que la feuille creuse PP?
PP hollow sheet is produced with two flat plastic surfaces connected by internal ribs. This hollow ribbed structure gives the sheet a balance of light weight and stiffness. The material is polypropylene, often shortened as PP.
Because of this structure, the sheet can protect products while keeping packaging weight under control. It is commonly used in logistics, électronique, appliance parts, agriculture, advertising and warehouse turnover systems.
Common names include:
- Feuille creuse PP
- PP corrugated sheet
- Corrugated plastic sheet
- Feuille de coroplaste
- Fluted polypropylene sheet
- Plastic cardboard sheet
These names are often used differently by buyers in different markets, but they usually refer to the same type of twin-wall polypropylene sheet.
Why Packaging Buyers Use PP Hollow Sheet
PP hollow sheet is popular because it solves several problems that paper packaging cannot handle well.
| Buyer need | How PP hollow sheet helps |
|---|---|
| Emballage réutilisable | The sheet can be made into boxes, dividers and layer pads for repeated turnover. |
| Moisture resistance | PP does not absorb water like paper cardboard. |
| Lightweight handling | The hollow structure reduces weight compared with solid plastic sheet. |
| Custom size | Sheets can be cut and processed according to product dimensions. |
| Impression | Logos, étiquettes, warnings and product information can be printed on the surface. |
| Cleaner storage | Plastic sheets are easier to wipe and clean than paper packaging. |
| Functional options | Antistatique, conductive, UV-resistant or flame-retardant options can be customized when needed. |
For companies that need repeated internal logistics or export packaging, PP hollow sheet can reduce packaging waste and improve handling consistency.
How Jinmai Applies PP Hollow Sheet in Custom Packaging
In real packaging projects, Jinmai does not only supply flat sheet. The sheet can be processed into finished or semi-finished packaging parts according to the buyer’s product size, handling method and reuse target.
Typical Jinmai applications include:
- Corrugated plastic boxes for reusable packaging and warehouse turnover
- Divider inserts for electronic components, hardware, bottles and precision parts
- Layer pads for stacked products and pallet packaging
- Printed coroplast signs and display boards
- Anti-static or conductive packaging options for electronics
- Custom cut sheets for surface, floor or product protection
This is why buyers should confirm not only thickness, but also GSM, couleur, taille de la feuille, méthode de traitement, impression, packing method and functional requirements.
Common Thickness Options
PP hollow sheet thickness should be chosen according to application, charger, stiffness and processing method. A thicker sheet is not always the only answer. Buyers should also consider GSM, sheet structure, product weight and reuse frequency.
| Épaisseur | Common use |
|---|---|
| 2mm-3mm | Light protection, liners, temporary backing, light signs |
| 4mm | Printed coroplast signs, panneaux d'affichage, light packaging partitions |
| 5mm-6mm | Reusable packaging boxes, inserts de séparation, couches de tampons |
| 8mm-10mm | Stronger boxes, pallet sleeve systems, outdoor signs, heavier protection |
| 12mm | Heavy-duty industrial packaging or special structure requirements |
For printed signs, 4mm is common for short-term signs and yard signs. For stronger packaging or larger boards, 6mm or 10mm may be more suitable. For reusable boxes or divider systems, buyers should confirm the product weight, stacking requirement and handling environment before choosing thickness.
Main Applications
Reusable Corrugated Plastic Boxes
PP hollow sheet can be cut, creased and assembled into corrugated plastic boxes. These boxes are used for parts turnover, warehouse storage, e-commerce packing, agricultural products and industrial logistics.
Compared with disposable paper boxes, corrugated plastic boxes are more suitable for repeated use, humid environments and applications that require easy cleaning.
Related product: Boîte en plastique ondulé / Coroplast Box for Reusable Packaging
Divider Inserts and Layer Pads
Divider inserts are used to separate products inside a box. They help reduce collision, scratching and mixing during storage or transportation. They are often used for electronic components, plastic parts, hardware, bottles, precision parts and warehouse turnover trays.
Pour les emballages électroniques, anti-static or conductive PP hollow sheet can be used when ESD control is required.
Related product: ESD Safe Divider Box for Electronics Packaging
Printed Coroplast Signs
PP hollow sheet can also be used for printed signs, display boards and temporary advertising panels. UV printing can be applied to the sheet surface, and 4mm, 6mm and 10mm are common choices depending on size and outdoor conditions.
For yard signs, H stakes can be supplied as matching accessories. Buyers should confirm sheet thickness, flute direction, sign size and whether single-side or double-side printing is required.
Related product: Feuille creuse imprimée UV / Coroplast Signs with H Stakes
Industrial Protection and Floor Protection
PP hollow sheet can be used as a temporary protection board during construction, renovation, factory handling or transportation. It can protect floors, surfaces and equipment from dust, scratches or light impact.
Agriculture and Greenhouse Use
Because the sheet is lightweight and water-resistant, it can also be used for agricultural protection, seedling trays, partitions, temporary boards and packaging for farm products.
PP Hollow Sheet vs Paper Cardboard
| Item | Feuille creuse PP | Paper cardboard |
|---|---|---|
| Water resistance | Bien | Weak |
| Réutilisation | Suitable for repeated use | Généralement limité |
| Cleaning | Can be wiped or washed | Difficult after moisture or dirt |
| Weight | Léger | Léger |
| Impression | Custom printing available | Custom printing available |
| Cost per piece | Usually higher | Usually lower |
| Cost per use | Can be lower when reused many times | Can be higher if frequently replaced |
| Best for | Emballage réutilisable, wet environments, chiffre d'affaires industriel | Disposable shipping, dry storage, low-cost packing |
Paper cardboard is still useful for many low-cost shipping needs. PP hollow sheet is better when buyers need durability, moisture resistance and repeated turnover.
What Can Jinmai Customize?
Jinmai Plastic can supply PP hollow sheet and process it into packaging products according to buyer requirements.
Customization options include:
- Sheet thickness and GSM
- Sheet size and color
- Printed logo, label or product information
- Coupe, creasing and welding
- Corrugated plastic boxes
- Divider inserts and layer pads
- Anti-static or conductive options for electronics packaging
- UV-resistant options for outdoor use
- Matching accessories such as H stakes for printed signs
For export or custom packaging projects, buyers can provide the product size, packing quantity, target use, required strength, printing artwork and shipping method. This helps the manufacturer recommend a suitable material structure and processing method.
Liste de contrôle du devis
Pour demander un devis en tôle creuse PP, prepare the following information:
- Application: box, divider, layer pad, sign, protection sheet or other use
- Sheet thickness or target stiffness
- Taille: length, width and height if it is a box
- Couleur
- Quantity
- Printing requirement
- Functional requirement: antistatique, conductive, UV-resistant or flame-retardant
- Product weight and stacking condition
- Packing and shipping method
- Drawing, sample photo or structure reference if available
If you are not sure which thickness or structure is suitable, Jinmai can recommend options based on your product and application.
FAQ
Is PP hollow sheet the same as coroplast sheet?
In many markets, coroplast sheet is a common name for corrugated plastic sheet or PP hollow sheet. Buyers may also call it fluted polypropylene sheet or plastic cardboard sheet.
La feuille creuse en PP est-elle imperméable?
PP hollow sheet is water-resistant and does not absorb water like paper cardboard. This makes it suitable for humid storage, washable packaging and reusable turnover boxes.
La feuille creuse PP peut-elle être imprimée?
Oui. Logos, étiquettes, warning marks and advertising graphics can be printed on PP hollow sheet. For sign applications, UV printing is commonly used.
What thickness should I choose?
The right thickness depends on the application. 4mm is common for printed signs, 5mm-6mm is often used for reusable packaging and dividers, and 8mm-10mm can be used for stronger boxes or larger panels.
Can PP hollow sheet be made into boxes?
Oui. PP hollow sheet can be cut, froissé, soudés ou assemblés dans des boîtes en plastique ondulé, divider boxes, layer pads and other custom packaging structures.
Can Jinmai supply anti-static PP hollow sheet?
Oui. Anti-static or conductive PP hollow sheet can be customized for electronics packaging projects. Buyers should confirm the target ESD requirement and application before production.
Does Jinmai only sell flat sheets?
No. Jinmai can supply PP hollow sheet and also process it into corrugated plastic boxes, inserts de séparation, couches de tampons, printed signs and other custom packaging structures.
Need Custom PP Hollow Sheet Packaging?
Jinmai Plastic manufactures PP hollow sheet, boîtes en plastique ondulé, inserts de séparation, printed coroplast signs and custom packaging solutions. If you need a quotation, send your size, épaisseur, couleur, quantité, application and drawing or sample photo.
