3D Stereo Positioning Blister (also known as Positioning Blister / Register Blister / 3D Printed Blister) is a composite process that combines high-precision color printing with vacuum blister forming. Its core workflow is print first, then stretch, and precise registration. It enables flat patterns to remain undistorted, displacement-free and crack-proof on 3D curved surfaces and reliefs, delivering a striking 3D visual effect.

1. Core Principle

Flat Pre-printing: High-precision graphics and texts are printed on plastic sheets such as PETG, PVC, APET and PP (thickness: 0.15–3.0mm) via offset printing or UV printing, with registration marks like cross lines and corner markers additionally printed.

Precise Registration: The plastic sheet is strictly aligned with the mould through registration marks, ensuring the patterns perfectly fit the 3D contour after stretching.

Heating & Blister Forming: The sheet is softened by partial or overall heating, then adsorbed onto the mould surface by vacuum negative pressure (or positive pressure) and stretched into a 3D shape.

Cooling & Shaping: Rapid cooling, demoulding and die cutting are performed to finish 3D products with precise printed patterns.

2. Core Features & Advantages

Ultra-high pattern positioning accuracy with no deformationIt solves the pain points of traditional blistering, such as pattern stretch distortion, position deviation, blank exposure and color cracking.It is applicable to curved surfaces, reliefs and deep-cavity structures (blister depth up to over 40cm), with patterns remaining clear and perfectly positioned.

Strong three-dimensional sense and excellent visual effectIt converts flat surfaces into 3D reliefs and cambered surfaces with superior texture and distinct layers, more eye-catching than ordinary printing and conventional blister products.Adopting high-temperature resistant special blister ink, the finished products feature bright colors, great stretch resistance, no color cracking and no fading.

3. Typical Applications

Toys & Masks: Cartoon masks, helmet shells, remote control car shells

Packaging: High-end gift boxes, 3D cosmetic packaging, inner linings for electronic products

Advertising & Display: 3D light boxes, 3D signage, relief display panels

Cultural & Daily Necessities: Globes, notebook covers, 3D decorative paintings, sports protective gear

Medical & Models: Human body models, teaching anatomical models, medical device housings