Lens Tape

An indispensable, high-technology component enabling the precision manufacturing of modern ophthalmic lenses. Discover the science behind the seal.

Production Process Flow

From raw materials to finished product, every step is rigorously controlled to ensure consistent and reliable performance.

Manufacturing a base film with uniform thickness and a smooth surface via casting or blowing.

Precisely formulating and evenly applying the pressure-sensitive adhesive onto the base film.

Passing the coated film through ovens to dry and cure the adhesive layer, ensuring stable performance.

Cutting the master rolls into finished rolls of specific widths and lengths according to customer requirements.

Lens Tape

JT811

Lens Tape

JT910

Lens Tape

JT8860

Lens Tape

JT8865

Lens Tape

JT8867

Lens Tape

JT819

Lens Tape Series Specification Sheet

Series Product code Description Backing Standard size) Tack (N) Adhesion (N/25mm) Tensile strength (Mpa) Temperature resistance (℃)
Thickness (mm) Width (mm) Length (m)
Lens Tape JT819 For 1.49 Refractive Index JT819 BOPP 0.07 1000 50/100 1.5↑ 5↑ 100↑ 90
Lens Tape JT811 For 1.56 Refractive Index And 1.49 Low Luminosity Lens JT811 PET 0.05 1000 50/100 2.0↑ 7↑ 120↑ 95
Lens Tape JT8860 For Photochromic And Blue Light Proof Lens JT8860 PET 0.06 1000 50/100 2.0↑ 9↑ 120↑ 130
Lens Tape JT8865 For 1.60 Refractive Index And Blue Light Proof Lens JT8865 PET 0.07 1000 50/100 2.0↑ 8↑ 120↑ 130
Lens Tape JT8867 For 1.67 Refractive Index JT8867 PET 0.07 1000 50/100 3.0↑ 9↑ 150↑ 130
Lens Tape JT910 For Uv Curing Lens JT910 PET 0.05 1000 50/100 3.0↑ 5↑ 110↑ 80

Technology Showdown: Tape vs. Gaskets

The primary alternative to tape is a pre-formed gasket. While both seal the lens mold, their differences in flexibility, automation compatibility, and failure modes have profound impacts on manufacturing efficiency and cost.

Adhesive Casting Tape

  • High Flexibility: One roll fits many mold sizes, simplifying inventory.

  • Automation Friendly: Easily integrated with high-speed automated wrappers.

  • Superior Shrinkage Handling: Stretches to accommodate resin shrinkage, reducing defect risk.

  • Lower Overall Cost: Higher yield and simpler logistics lead to better cost of ownership.

  • Single-Use: Consumable nature requires continuous supply.

Pre-Formed Gasket

  • Low Flexibility: Requires a unique gasket for each lens geometry.

  • Complex Automation: Needs precise pick-and-place robotics and tooling changes.

  • Failure Prone: Risk of premature resin release, causing optical defects and yield loss.
  • High Inventory Cost: Requires stocking hundreds of unique gasket SKUs.

  • Reusable: Can be used multiple times, but requires inspection and cleaning.

Functions, Uses, and Applications

Lens tape is an indispensable material in optical processing. Its core function is to protect the lens surface from any form of damage throughout the entire complex manufacturing workflow.

Surface Protection

Prevents scratches and physical damage from abrasives and debris during lens grinding, polishing, and edging.

Process Isolation

Masks and protects non-working areas from chemical corrosion or contamination during vacuum coating, cleaning, or etching.

Temporary Fixing

Provides temporary support and fixation for small or irregularly shaped lenses, facilitating handling on processing equipment.

Primary Application Fields

Our product is widely used in the manufacturing process of various precision optical components:

  • Ophthalmic lenses (resin, glass)
  • Professional optical components (lasers, medical)
  • Consumer electronics lenses(phones, cameras)
  • Semiconductor optics (wafers, filters)

Quality Standards & Certifications

We are committed to delivering the highest quality products, a promise backed by strict internal standards and authoritative third-party certifications.

Appearance Standard

Tape surface is smooth and free of defects like bubbles, scratches, or impurities. Edges are clean with no adhesive bleed.

Performance Consistency

Each batch is tested for key performance indicators like peel strength to ensure stable and reliable performance.

Dimensional Tolerance

Strict control over width and thickness tolerances ensures high consistency for automated production lines.

Third-Party Inspection & Certification

ISO 9001:2015

Quality Management System certification, demonstrating our ability to consistently produce high-quality products.

RoHS Directive

Products are free of hazardous substances, complying with EU environmental standards for user and environmental safety.

REACH Regulation

Compliant with EU chemical regulations, ensuring a high level of protection for human health and the environment.