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Ever Ray's new patent solves the problem of PVC surface treatment
Release time:
2025-07-10
Ever Ray's new patent solves the problem of PVC surface treatment, and UV flexible resin innovates the industrial ecology
Ever Ray's new patent solves the problem of PVC surface treatment, and UV flexible resin innovates the industrial ecology
In the vast territory of the plastics industry, polyvinyl chloride (PVC) occupies an important position with its cost advantage and plasticity. However, traditional PVC surface treatment technology has long faced the dual challenges of environmental protection and performance - plasticizer migration causes soft PVC to age and become brittle, solvent-based coatings pollute the environment, and the rigid surface of hard PVC is difficult to achieve high adhesion coating. These pain points are being solved by an innovative technology.
Guangdong Ever Ray Environmental Material Co., Ltd. has brought a breakthrough solution to the PVC industry with its latest patent "Method for synthesizing UV-curable flexible vinyl resin by microreactor" (CN 119264378 A). This technology uses a microreactor device to accurately control the strong exothermic reaction, and synthesizes colorless, highly stable UV-curable flexible vinyl resin in a very short time, which fundamentally solves the gelation problem caused by temperature runaway in traditional processes5.
1. Technological innovation: precision synthesis driven by microreactor
The core of Everray's patented technology lies in the reconstruction of the resin synthesis path:
Temperature control revolution:
In traditional resin synthesis, the ring-opening reaction of dibasic acid and epoxy resin releases a large amount of heat, which is very easy to cause local overheating (>200℃), resulting in cross-linking and gelation of the product. The millimeter-level microchannel design of the microreactor enables the reactants to achieve efficient mixing and heat transfer within milliseconds, and controls the temperature fluctuation of the system within ±1℃, completely eliminating the gelation phenomenon5.
Performance breakthrough:
The newly synthesized UV flexible vinyl resin has both low viscosity (suitable for spraying) and high flexibility (elongation at break>200%), especially significantly improved compatibility with soft PVC. Experiments show that its coating has no cracks after thousands of bends in the temperature range of -20℃ to 80℃, which fundamentally solves the problem of coating embrittlement caused by plasticizer migration5.
This breakthrough relies on Ever Ray's deep R&D accumulation. The company has two laboratories for UV resin synthesis and coating application, and has co-built an industry-university-research base with Wuyi University and Jiangmen Vocational and Technical College. The technical team has more than 20 years of industry experience17. This R&D strength is also reflected in its 28 patents and full-process DCS computer monitoring production system56.
2. Application scenarios: comprehensive empowerment from flooring to 3C
Everray's UV resin has penetrated into the two core areas of PVC, promoting environmental protection upgrades:
Soft PVC scenario
Elastic floor revolution:
In response to the problem of easy scratches on the surface of PVC floor leather and "sticky feet" caused by plasticizer leakage, Ever Ray developed a polyurethane acrylate resin that forms a micro-cross-linked network structure through UV curing, which blocks the plasticizer from floating while retaining the flexibility of the floor. After testing, the wear resistance of the treated floor has increased by 5 times, and it has passed the EU EN 14372 non-toxic certification13.
Environmentally friendly cable sheath:
Traditional PVC cables rely on phthalate plasticizers, which pose a risk of reproductive toxicity. Ever Ray epoxy acrylate system replaces solvent-based coatings and forms a dense protective layer with zero V emission after curing. It has been applied to data cable products of enterprises such as Hitachi and Foxconn4.
Hard PVC scene
Efficient coating of special-shaped materials:
Door and window profiles need to take into account both weather resistance and decorative effects. The functional group-modified acrylate resin developed by Ever Ray can be cured within 3 seconds, with adhesion reaching ISO 2409 standard level 0 and salt spray resistance time exceeding 2000 hours, helping Conch Profiles to achieve a 40% increase in production line speed17.
3C electronic housing:
For injection molded parts such as mobile phone cases and routers, its special polyester acrylate resin achieves a metallic texture effect through vacuum electroplating process, with a hardness of more than 3H and alcohol wiping resistance exceeding 500 times, becoming a Huawei supply chain certified material46.
3. Industrial linkage: from laboratory to global exhibition
Ever Ray's innovative achievements are rapidly penetrating the industrial chain:
Capacity expansion:
The company is building a new plant of 40,000 square meters and introducing a heat medium adaptive DCS system to ensure that the stability of product batches reaches 99.8%16.
Industry empowerment:
As a permanent exhibitor at the China International Coatings Exhibition (booth E3.D31), Ever Ray displayed low-viscosity resins developed for PVC flooring during the 2021 exhibition, attracting many listed companies to reach strategic procurement3.
Green manufacturing:
Through the ISO 14000 certification system, its UV resin can reduce the use of organic solvents in the PVC coating process by 80%, and a single production line can reduce VOCs emissions by more than 50 tons per year27.
4. Future prospects: New materials drive sustainable manufacturing
As global environmental regulations become stricter (such as EU REACH plasticizer restrictions), the upgrading of the PVC industry is imminent. Everray has laid out three major directions:
Research and development of bio-based resins:
Replacing petroleum-based monomers with itaconic acid to reduce the carbon footprint of resins
3D printing materials:
Developing PVC-compatible photosensitive resins to expand customized manufacturing scenarios1
Intelligent response coatings:
Thermochromic/electrochromic resins for smart building profiles5
From microreactors in laboratories to coating lines in global factories, the story of Ever Ray confirms an industrial truth: the most difficult material problems often breed the most disruptive innovations. When the blue cold light of UV resin passes across the surface of PVC, it illuminates not only the recycling path of plastics, but also the transformation trajectory of China's smart manufacturing towards high added value.
Ever Ray's UV resin products now cover four major series (polyurethane/epoxy/polyester/special acrylates), supporting 20-200 kg customized packaging. To learn more about technical parameters and application cases, please visit the company's official website : https://en.ever-ray.com/
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Company headquarters: 12th floor, office building b, aoyuan plaza, fengle road, pengjiang district, jiangmen city, guangdong province
Jiangmen factory area: Meidachong nanyang wai industrial zone, muzhou town, xinhui district, jiangmen city, guangdong province
Yunfu factory area: Dawan town dawan industrial park, yunan county, yunfu city, guangdong province
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