1. Similarities of PVC & PET Clear Boxes

Basic material property: Both are rigid transparent thermoplastic sheets, mainstream raw materials for folding plastic boxes. They support UV printing, hot stamping, die-cutting and crease folding, with transparent appearance to fully display products.

Universal processing workflow: The same production line can manufacture both materials, suitable for cosmetics, toys, electronics and gift packaging.

Surface customization: Both are fully transparent without color masterbatch, available for anti-slip, anti-static and matte surface treatment, supporting custom irregular box shapes.

2. Key Differences Between PVC & PET Boxes

(1) Transparency & Visual Texture

PET: Over 90% light transmittance, crystal bright white, anti-yellowing for long-term shelf display, ideal for high-end packaging.PVC: Slightly lower transparency with faint blue tint; easy to turn yellow under sunlight, with lower premium visual effect.

(2) Eco-friendliness & Export Compliance

PET: Non-toxic, food-contact certified, fully recyclable, no toxic gas when incinerated; mandatory material for EU, US retail & food packaging.PVC: Releases chlorine and dioxins during production & disposal, fails food-grade tests, restricted or banned in many overseas regions, risks customs detention for export orders.

(3) Physical Performance (Stiffness, Impact & Heat Resistance)

PET: High rigidity, anti-extrusion & anti-breakage for long-distance shipping; heat resistant above 120°C, no deformation in hot storage.PVC: Soft texture, easy to crack under pressure; only resistant to 60-80°C, softens & warps in high-temperature warehouses.

(4) Processing Cost & Operation Difficulty

PVC: Wide thermoforming temperature range, low reject rate, cheaper raw material cost, widely used for low-budget domestic orders.PET: Narrow forming temperature window with strict machine temperature control; higher raw material price, adopted for premium & export orders.

(5) Printing Performance

Both fit UV offset printing; PET has stable ink adhesion without ink peeling. PVC needs corona treatment before printing due to low surface tension.

3. Why All Transparent Plastic Boxes Are Generally Called PVC Boxes in Industry

Historical Industry OriginPVC was the only transparent sheet for folding boxes when China’s plastic packaging industry started in the 1990s. PET material was introduced much later. All clear boxes back then were PVC, and the naming habit has been passed down for decades.

Fixed Customer RecognitionBuyers, wholesalers and retail clients cannot distinguish PET and PVC sheets, they simply refer to all transparent plastic boxes as PVC boxes. Factory sales use the same general term for smooth communication, forming a widespread industry slang.

The Name Is Only a General Nickname, Not Material DefinitionThe term "PVC box" in daily communication covers all transparent folding boxes, not merely PVC-made products. Material must be clearly marked PET/PVC on formal quotations, export contracts and food packaging to avoid compliance & environmental risks.

4. Material Selection Guide

Food packaging, cosmetic export sets, premium gift boxes, long-term supermarket display: Choose PET clear boxes.

Low-budget domestic short-term disposable packaging: PVC boxes are acceptable.

Cross-border & EU/US export orders: Prioritize PET to avoid PVC environmental bans.