Technological Innovation Drives Industry Development | Wanhua Eco-Tech Pioneers Formaldehyde-free PUR Granule Edge Banding Glue

In the past home customization industry,"Wanhua Lingquan" was often closely associated with formaldehyde-free EVA hot-melt edge banding adhesive,but with the launch of WHADV-7010 Wanhua Lingquan formaldehyde-free PUR granular edge banding adhesive at the end of last year,the definition of furniture panel edge banding has also become more diverse.

I The Dilemma from EVA to PUR

Furniture panel edge banding has evolved from fully manual production in the early days, to semi-automation in the middle period,and now to full automation, technological advancement, and intelligence,experiencing a long development process.The edge banding technology of panel furniture has also gradually developed from EVA hot-melt adhesive edge banding to PUR edge banding and laser edge banding.The quality of edge banding directly determines the health index, aesthetics, and service life of furniture.

Traditional EVA does not require high demands on edge banding equipment, but the glue application amount is large,about 200-300g/㎡.The whole reaction principle can be understood as,it melts by heat and then solidifies by cooling to produce stickiness,which is a physical bond.If it encounters high temperature (around 80°),it will melt and soften again,losing its original stickiness.

PUR cures when exposed to moisture, with friendly labels such as "waterproof and moisture-proof", "high viscosity", "low usage", and "fine glue seam",which has made many manufacturers see business opportunities,and they have produced their own PUR edge banding adhesives.However, most products on the market are packaged in barrels or cylinders,which has certain limitations in the use of edge banding machines,and also brings some difficulties for edge banding workers,how to make edge banding better, living healthier, construction simpler, and production costs lower,has become a topic that manufacturers continue to research.

II Directly Addressing Industry Pain Points and Tackling Technical Challenges

Although PUR has been recognized by the market, the products are uneven in quality and the market is rather chaotic,domestic custom furniture companies mainly rely on imported products for high-quality edge banding.At present,there is an urgent need in China for a cost-effective integrated edge banding solution.We need to solve not only high-quality, stable-performance products,but also machine adaptation and later cost maintenance issues.Customer needs guide the development of the industry,to complete the transformation of an original technology,platform, capital, and market support are needed,and more importantly, a research team that dares to innovate.As early as two years ago,the research team of Wanhua Ecological Technology foresightedly launchedthe internal R&D project "Development of Formaldehyde-free PUR Granular Edge Banding Adhesive Technology",conducted comprehensive research and in-depth diagnosis of the actual production operation experience of domestic panel companies' edge banding devices, deeply analyzed the dimensions and indicators that can be optimized,and with solid technical skills,completed the process from demonstration to R&D.Finally, Wanhua Lingquan formaldehyde-free PUR granular edge banding adhesive was launched,completely breaking the current predicament of major panel manufacturers.

III China's First Micro-Granule Technology, Upgraded Performance

1. Pioneering micro-granule technology, convenient construction, low maintenance cost

In the past, imported PUR edge banding adhesives were mostly packaged in barrels, the construction steps were complicated,the fault tolerance rate was low, and it was easy to cause equipment maintenance and other after-sales problems,and the strength was affected by the environment in winter.The newly developed Wanhua Lingquan formaldehyde-free PUR granular edge banding adhesive,with its unique micro-granular appearance,replaces the traditional barrel-packed PUR adhesive,no need to change equipment,ordinary straight edge banding machines,both upper and lower glue pots can be used,high fault tolerance,no need to change equipment,completely solves the high-cost problem of different edge banding adhesives matching different machines in panel factories.

2. High bonding strength

For example, domestic EVA at 450 yuan/bag has a bonding strength of about 12kg force; imported EVA at 520 yuan/bag has a bonding strength of about 12-13kg force;Wanhua Lingquan formaldehyde-free PUR granular edge banding adhesive can rival imported PUR, with a bonding strength of more than 15kg force.

3. Good weather resistance

Traditional EVA, whether domestic or imported, after gluing, has a temperature resistance range of 60-80℃;Wanhua Lingquan formaldehyde-free granular PUR edge banding adhesive can withstand high temperatures up to 100℃,and the firmness of the edge banding is not affected.

4. Waterproof and moisture-proof

Traditional EVA is neither waterproof nor moisture-proof, PUR relies on moisture reaction curing,in humid environments such as bathrooms,there is no need to worry about the edge banding of the panel opening or falling off.Take Wanhua Lingquan PUR edge banding Hexiang board as an example:after soaking in water for 72 hours,the strength of the glue still remains above 9kg force.

5. Low glue application amount

Wanhua Lingquan formaldehyde-free PUR granular edge banding adhesive, in addition to high bonding strength, is also more economical in material usage.PUR glue application is about 80-100g/㎡,EVA glue application is about 200-300g/㎡,Wanhua Lingquan formaldehyde-free PUR granular edge banding adhesive,is 2-3 times that of traditional EVA edge banding.

6. High aesthetics

The glue application is less than EVA, there will be no glue overflow,it is easier to control the glue line,making the glue line finer and more beautiful.

IV Wanhua Lingquan Formaldehyde-free PUR Granular Edge Banding Adhesive

WHADV-7010 is a high-quality formaldehyde-free PUR granular edge banding adhesive, applied to Hexiang board and various artificial boards and PVC edge banding strips,bonding between wood edge banding strips and other materials,suitable for domestic and imported medium and high-speed edge banding machines.This product has a wide temperature adaptation range,can be used in most parts of China in both winter and summer,compared with traditional EVA edge banding adhesive,formaldehyde-free PUR granular edge banding adhesive has the characteristics of being formaldehyde-free, benzene-free; low usage; high bonding strength; good substrate wettability, etc.

With the conclusion of the R&D of micro-granular PUR edge banding adhesive, this new technology has immediately attracted industry attention.Many well-known custom furniture companies in the industry have come to cooperate with Wanhua Ecological Technology,and signed cooperation agreements.This move not only improved the edge banding level of the panel industry,but also reshaped the definition of "formaldehyde-free" for the Wanhua Lingquan brand in the era of whole-house customization.Under the guidance of "technology innovation as the lead, green sustainable development as the concept",Wanhua Ecological Technology will adhere to technological innovation, accelerate technology transformation,uphold the concept of "under the roof, there should be no formaldehyde",help customers achieve high-quality formaldehyde-free edge banding,with lower cost, better solutions,better products and services,empower green sustainable development,and strive for the "14th Five-Year Plan"!