Dongguan Yijun New Material Technology Co., Ltd.

PROTECTION
REDEFINED

Pioneering advanced breathable waterproof membranes and functional textiles for outdoor, medical, military, and industrial applications worldwide. Engineered for performance. Driven by sustainability.

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Company Profile

Your Global Partner in Functional Textiles

TRILLION JUN TECHNOLOGIES (Dongguan Yijun New Material Technology Co., Ltd.) is strategically located in Dongguan, China's premier manufacturing hub. We specialize in the research, development, and production of advanced breathable waterproof membranes and functional textile fabrics.

As a comprehensive material solutions provider, we deliver high-performance waterproof fabric lamination processing and supply an extensive range of textile fabrics and non-woven materials. Our products serve as critical components for footwear, apparel, outdoor sports gear, medical protective equipment, maternal and infant hygiene care, military defense, electronic protection, and industrial manufacturing. By continuously innovating and actively responding to customer requirements, we leverage our deep expertise in the textile industry to provide reliable, sustainable, and superior material solutions globally.

6+

Membrane Lines

8+

Industries Served

100%

Eco-Commitment

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Global Reach,
Local Expertise

Since Establishment

Extreme macro close-up of a white microporous membrane surface showing billions of tiny uniform holes arranged in a dense geometric pattern, scientific microscopy style, high contrast black and white
Core Technology

Microscopic Science.
Macroscopic Protection.

The core of our breathable waterproof membrane lies in its precision-engineered microporous structure. Each square inch contains billions of microscopic pores—20,000 times smaller than a water droplet, yet 700 times larger than a water vapor molecule. This means rain, snow, and liquid water cannot penetrate, while perspiration vapor escapes effortlessly, maintaining optimal body climate.

Waterproof

Advanced membrane lamination technology effectively blocks rain, snow, and external liquid water intrusion, keeping the interior completely dry even under extreme weather conditions and high hydrostatic pressure.

Breathable

Exceptional moisture vapor transmission allows sweat generated by the body to escape rapidly outward, preventing clamminess, maintaining microclimate comfort, and significantly enhancing the wearing experience during physical exertion.

Durable

Utilizing premium polymers like TPU, PTFE, and ePE tailored for specific scenarios, our membranes exhibit outstanding tear resistance, abrasion durability, and chemical stability, ensuring long-lasting performance in demanding environments.

Product Series

The Membrane Matrix

From standard moisture-permeable films to ultra-high-breathability microporous membranes. All YJ products adhere to strict environmental, high-performance, and sustainable principles, featuring fluorine-free and bio-based technologies to meet every level of application demand.

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Standard

YJ WP – TPU

General Moisture-Permeable Waterproof Membrane

Crafted from Thermoplastic Polyurethane (TPU), this membrane delivers a balanced combination of waterproofing and moisture permeability. It is highly versatile, easy to laminate, and serves as a reliable foundation for everyday applications requiring consistent protection.

  • Excellent tensile strength and elasticity
  • Superior low-temperature flexibility
  • Easy composite lamination processing
View Applications
Pale yellowish slightly transparent film roll partial close-up, soft flexible texture with fine matte surface grain, light gray industrial background, side lighting highlighting material thickness
Medium

YJ WPB – PU

Medium Moisture-Permeable Waterproof Membrane

Based on Polyurethane (PU) coating technology, providing medium-level moisture vapor transmission. Its exceptionally soft hand feel makes it ideal for mid-range outdoor apparel, casual footwear, and lightweight protective textiles where wearer comfort is prioritized.

  • Soft, skin-friendly tactile sensation
  • Stable hydrostatic pressure resistance
  • Outstanding cost-effectiveness
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Ultra-thin transparent plastic film floating in mid-air catching rainbow-like light refractions, extremely lightweight and delicate appearance, dark background emphasizing transparency, high-speed photography freezing motion
Active

YJ WP Active – PE

High Moisture-Permeable Waterproof Membrane

Engineered specifically for high-intensity activities using Polyethylene (PE). When vigorous exercise generates massive amounts of sweat vapor, this membrane rapidly expels moisture to keep the body dry, making it the preferred choice for professional athletic wear.

  • Extremely high moisture vapor transmission rate
  • Ultra-lightweight construction
  • Eco-friendly recyclable material
View Applications
Pure white dense film material extreme macro close-up, surface covered with microscopic pores invisible to naked eye, matte finish texture, scientific instrument photography style, cool tone uniform illumination
Super

YJ WP Super – PTFE

Microporous High-Breathability Waterproof Membrane

Utilizing expanded Polytetrafluoroethylene (PTFE) technology with an incredibly dense microporous network. Delivers top-tier waterproof, windproof, and breathable performance for professional-grade outdoor gear and harsh industrial protection in extreme environments.

  • Superior hydrostatic head resistance
  • Exceptional chemical stability
  • Withstands extreme temperature variations
View Applications
Silver-gray high-tech nanofiber mesh film composed of countless ultra-fine interwoven threads, metallic sheen with futuristic technological aesthetic, deep blue background, upward directional lighting
Ultra

YJ WP Ultra – NANO

Microporous High-Breathability Waterproof Membrane

Incorporating cutting-edge nanofiber spinning technology to construct a precise microporous architecture. Achieves higher breathability with thinner profiles and softer textures, redefining the comfort limits of premium functional fabrics and sensitive protective gear.

  • Nanometer-level pore size control
  • Ultimate thinness and softness
  • Efficient particulate interception
View Applications
Light green semi-transparent eco-friendly film material rolled and placed on a natural wooden table, decorated with fresh green leaves nearby emphasizing bio-based concept, warm natural sunlight, clean fresh atmosphere
Ultimate

YJ WP Ultimate – ePE

Microporous High-Breathability Waterproof Membrane

Crafted from expanded Polyethylene (ePE), fully realizing a fluorine-free and bio-based origin. While delivering exceptional microporous high-breathability waterproof performance, it drastically reduces carbon footprint, serving as our flagship product for sustainable innovation.

  • Completely PFAS/PFC-free formulation
  • Low carbon footprint manufacturing
  • Performance meets environmental responsibility
View Applications
Industry Solutions

Engineered for Every Environment

From alpine peaks to sterile operating rooms, tactical fields to cleanrooms. Trillion Jun matches specific membrane technologies to distinct industry demands, providing targeted application guidelines for optimal performance.

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Outdoor Sports & Apparel

For high-output aerobic activities like trail running or ski touring, YJ WP Active (PE) provides maximum vapor release. For extreme alpine expeditions facing torrential storms, YJ WP Super (PTFE) offers impenetrable weather defense.

Young female healthcare worker wearing white medical protective suit, blue surgical mask and transparent face shield, standing in a brightly lit hospital corridor, adjusting gloves, sterile environment cold white lighting

Medical Protective Gear

Medical isolation gowns require balancing fluid barrier protection with heat stress reduction. YJ WP Ultra (NANO) features nanoscale pores that effectively block viral aerosols and bloodborne fluids while allowing continuous air circulation for medical staff.

Pair of brown suede and black waterproof fabric spliced outdoor hiking boots resting on mossy wet rock, water droplets sliding off the shoe surface, blurred green forest background, natural post-rain lighting

Footwear Manufacturing

Daily commuter shoes benefit from the soft hand-feel of YJ WP (TPU) or YJ WPB (PU). Professional trekking boots subjected to river crossings demand the robust hydrostatic resistance of YJ WP Super (PTFE) bootie liners.

White waterproof breathable mattress protector pad close-up on a crib, surface featuring fine diamond quilted texture, light blue baby pacifier placed beside it, soft warm indoor lighting, cozy nursery atmosphere

Maternal & Infant Care

Hygiene products touching sensitive skin require absolute safety. The fluorine-free, bio-based YJ WP Ultimate (ePE) is utilized in leak-proof diaper back-sheets and nursing pads, ensuring dryness without harmful chemical exposure.

Soldier wearing camouflage tactical uniform and heavy ballistic vest marching through muddy jungle environment in pouring rain, garment surface covered in water beads but appearing dry inside, desaturated documentary photography style

Military & Defense

Tactical gear faces extreme abrasion and diverse climates. YJ WP Super (PTFE) delivers military-specification tear strength, total wind/rain blockage, and compatibility with flame-retardant outer shells to maintain troop operational readiness.

Engineer wearing white anti-static gloves assembling a green printed circuit board, transparent waterproof protective film covering the electronics above, cleanroom environment, bright uniform shadowless lighting

Electronic Protection

Smart wearables and acoustic devices need venting without water ingress. YJ WP Ultra (NANO) acts as an acoustic-transparent, IP68-rated venting membrane, equalizing internal pressure to prevent condensation damage to sensitive PCBs.

Middle-aged male worker wearing bright yellow one-piece industrial protective coveralls and safety helmet inspecting equipment among chemical plant pipes, garment surface showing reflective chemical splash resistant coating, industrial site environment

Industrial Manufacturing

Chemical plants and construction sites demand durable workwear. YJ WP (TPU) laminated with heavy-duty fabrics resists oils, acids, and alkalis while remaining breathable, reducing heat exhaustion risks for workers in hazardous zones.

Large industrial textile lamination machine pressing a layer of white film together with dark blue nylon fabric, rotating rollers demonstrating fabric composite processing operation, factory workshop environment

Fabric & Accessory Supply

Beyond membranes, Trillion Jun supplies a comprehensive ecosystem of functional woven textiles, non-woven series materials, and professional waterproof fabric lamination services, creating a closed-loop supply chain for your manufacturing needs.

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Sustainability

Respecting Nature.
Engineering the Future.

As a vital link in the global supply chain, Trillion Jun recognizes that true performance cannot come at the expense of the planet. We embed "eco-friendly, high-performance, and sustainable" principles into the DNA of our R&D processes.

Transitioning to PFC-Free

We are systematically phasing out traditional fluorinated compounds. Products like YJ WP Ultimate (ePE) eliminate persistent organic pollutants, safeguarding waterways and soil ecosystems from toxic accumulation.

Pioneering Bio-Based Materials

Actively developing membranes derived from renewable botanical resources. By reducing reliance on petrochemical feedstocks, we lower embodied carbon emissions directly at the source of our manufacturing chain.

Circular Economy & Durability

Enhancing material longevity and anti-aging properties extends product lifecycles. We champion mono-material lamination techniques to facilitate end-of-life recycling and minimize textile waste in landfills.

INNOVATION
Our Vision

Shaping Tomorrow's Textiles

We envision a future where uncompromising protection and ecological harmony coexist seamlessly. Trillion Jun is dedicated to leading this transformation across the global functional textile industry.

01

Technology Vanguard

Continuously expanding R&D investments in nanofiber spinning, bio-based polymers, and fluorine-free waterproofing to remain the definitive benchmark for functional textile innovation worldwide.

02

Strategic Global Partner

Deepening international collaboration beyond mere material supply. We aim to integrate closely with brands to co-develop next-generation standards and solve complex protective challenges together.

03

Environmental Guardian

Embedding ESG principles into every operational layer, driving the entire textile lamination supply chain toward zero-emission, fully circular models, utilizing technology to protect our shared planet.