Boretech : Breaking Technical Bottlenecks in PET/PP Tray Recycling

Zhejiang Boretech Environmental Technology Engineering Co., Ltd. (referred to as "Boretech") was established in 2005. In 2015, Boretech strengthened its engineering capabilities and technical expertise, achieving comprehensive integration of resources and technologies across the recycled polyester industry chain. Beyond PET bottle recycling and washing systems, the company provides a complete set of plastic recycling and washing solutions, covering hard plastics (such as HDPE and PP), flexible films (LDPE), PET trays, PP food containers, as well as chemical recycling, waste fiber recovery, and MES solutions. Leveraging the group’s industrial strengths and over three decades of synthetic fiber production experience, Boretech offers well-established polyester staple fiber and textile equipment solutions, along with comprehensive fiber production processes. In response to the growing demand for recycled plastics, the company also provides PET bottle-to-bottle (B2B) equipment supply and engineering services.

PET tray recycling has long been a challenge for the plastics recycling industry. Highly compacted bales, excessive adhesive labels and glue, complex material compositions, and the inherent brittleness of trays have limited both process efficiency and yield.

At K 2025(October 8–15, 2025, Hall 9 Stand D56), Boretech will present its PET Tray Recycling process, a purpose-designed solution that breaks through four key bottlenecks and delivers four core technological advancements—pioneering a game-changing recycling process for PET/PP trays and clamshells.

Four Core Technological Advancements

• Thorough Material Loosening :High-efficiency de-baling and pre-washing system ensures thorough loosening of highly-compacted bales.
• Intensive Hot Washing:>90% removal and separation rate of adhesive labels and impurities.
• Mega Aspirator: Film labels and flakes are separated with >99% accuracy and <1% flake carryover rate.
• Enhanced Yield: Cut tray recycling loss to 20% with our low impact de-watering tech – engineered to dehydrate rapidly without compromising material value.

Smart Modular Technology

The system is based on a customizable modular design, tailored to different material mixes. PET tray flake quality meets food-grade rPET standards, compliant with FDA & EFSA requirements:

• Flakes with Adhesive: < 2000 ppm
• PVC Content: < 50 ppm

Module Highlights

• De-baling & Pre-hot Washing Module

The innovative mechanical + thermal de-baling process overcomes traditional physical limitations, loosening highly compacted tray bales while pre-washing and thoroughly de-baling the materials. This enables effective downstream automatic sorting. The module features a water circulation system removing impurities for inline recycling.

• Wet Crushing Module

Utilizing wet crushing technology, this process intensively washes materials during crushing while significantly reducing fine generation, minimizing raw material loss, and extending crusher blade service-lifes. Featuring a patented low-loss design, the centrifugal dryer minimizes mechanical impact on materials to prevent fragmentation. This achieves virtually zero fine generation during extended operation, while adjustable residence time ensures optimal dehydration.

• Intensive Hot Washing Module

This module delivers thorough, intensive washing and friction against the material, achieving 25% higher impurity removal over typical systems. It fully removes large adhesive labels from trays’ surface. The integrated inline detergent circulation system separates adhesives and impurities via filtration, and the detergent is for inline recycling.

• High-speed Rinsing Module

The high-speed rotating shaft generates intense turbulence, removing residual alkali and micro-adhesives from the material. The long flotation path ensures complete separation of floating impurities.

• Flake Sorting & Packing Module

The Mega Aspirator employs multiple parallel air separation channels to remove 99% of film labels with high sorting efficiency and low flake carryover rates. Residual colored flakes and other materials are then removed through color and material sorting.

PET/PP Tray Recycling Demonstration Plant will open at the end of November

Boretech has implemented its self-developed PET TRAY washing process to achieve a true tray-to-tray closed-loop recycling system.

This facility recycle tray wastes to tray flakes, used in the production of recycled trays.

Provides a new way for pallet manufacturers and brands to meet compliance requirements by no longer relying on borrowing bottle-grade recycled materials.

Factory tour reservations and rTray sample reservations are now open.

Boretech’s Compact Prewasher: Revolutionizing PET Bottle Preprocessing

Boretech’s Compact Prewasher represents a significant advancement in PET bottle recycling technology. This innovative system integrates four key functions—de-labeling, separation, washing, and dewatering—into a single, modular unit. By consolidating these processes, Boretech streamlines operations while enhancing both output quality and overall efficiency for recyclers.

Visit Boretech at 9D56 at K 2025 (October 8–15, 2025) to learn more about our innovations in PET tray recycling.

K SHOW 2025 in Germany

Location: Düsseldorf, Germany

Date: 2025/10/08-2025/10/15

Booth: 9D56