With their unique natural grain, excellent light-adjusting performance and decorative appeal, wooden blinds are widely used in the construction and home furnishing sectors. However, wood itself is susceptible to insect infestation and decay, which not only impairs the appearance of wooden blinds but also compromises their structural stability and service life. Therefore, effective insect-resistant and anti-corrosion treatments for wooden blinds are critically important.
Wood contains nutrients such as cellulose, hemicellulose and lignin, which are attractive to insects. For example, termites primarily feed on cellulose in wood; they secrete enzymes to break down cellulose into absorbable nutrients.
Warm and humid environments provide ideal breeding grounds for insects. Many wood-boring insects, such as woodworms, thrive and reproduce at temperatures of 20–30°C and relative humidity of 60%–80%. Wooden blinds installed in such environments are highly vulnerable to insect attacks.
Wood is hygroscopic. When exposed to damp conditions, wooden blinds absorb moisture, causing the wood cell walls to swell; the wood then shrinks as it dries. This repeated swelling and shrinking damages the wood’s cellular structure, making it brittle. Meanwhile, moisture creates favorable conditions for the activity of microorganisms and corrosive substances.
Fungi are major microorganisms causing wood decay. They decompose cellulose, hemicellulose and lignin in wood, weakening its structural strength. For instance, wood-rotting fungi grow on the wood surface and gradually spread inward, leading to wood discoloration and rot.
If wooden blinds are exposed to environments containing chemical pollutants—such as acid rain or sea spray (for buildings near coastlines)—these chemicals react with wood and cause corrosion. Acidic compounds in acid rain dissolve certain wood constituents, reducing wood durability.
Principle: High temperatures kill insects and eggs in wood and destroy the cellular structure of microorganisms, achieving insect resistance and corrosion prevention. Most wood-boring insects and microorganisms can be effectively eliminated when wood is heated to 56°C and maintained for more than 30 minutes.
Operation: Treat wooden blinds in a dedicated high-temperature drying kiln. Place the blinds in the kiln, gradually raise the temperature to the target level, and hold it for the specified duration. This method not only controls insects and decay but also enhances wood dryness and reduces moisture content.
Principle: Wood is irradiated with rays (e.g., gamma rays from cobalt-60), which damage the reproductive systems of insects and the DNA structure of microorganisms, preventing their reproduction and survival.
Operation: Place wooden blinds in irradiation equipment and apply treatment at a specified dosage. Irradiation offers strong penetration and fast processing, but requires professional equipment, trained operators and strict safety protection.
Principle: Alter the gas composition of the wood storage/treatment environment—lowering oxygen concentration and raising carbon dioxide concentration—to inhibit the growth and reproduction of insects and microorganisms. Insects and microorganisms require a specific oxygen level for normal physiological activities; their metabolism slows or ceases when oxygen drops below a threshold.
Operation:Seal wooden blinds in a container, extract part of the air, and fill with nitrogen or carbon dioxide to adjust oxygen to approximately 5%–10% and carbon dioxide to 30%–50%. The process must be carried out in a sealed environment with regular gas composition monitoring.
Organophosphates: e.g., dichlorvos, dimethoate. These have strong contact and stomach poisoning effects, effectively killing wood borers. However, they are toxic, requiring strict safety precautions to avoid harm to humans and the environment.
Pyrethroids: e.g., deltamethrin, cypermethrin. Characterized by high efficacy, low toxicity and broad spectrum, they repel and eliminate wood borers via contact and stomach poisoning, and are relatively safe for humans and livestock.
Copper-Based Preservatives: e.g., chromated copper arsenate (CCA), copper azole (CA). Copper ions inhibit microbial growth. CCA was once widely used but is restricted in some countries/regions due to arsenic content; CA is an eco-friendly alternative with reliable anti-corrosion performance.
Brush-Coating Procedure
Clean the surface of wooden blinds thoroughly to remove dust, grease and other impurities before coating. Apply the chemical evenly with a brush or sprayer to all surfaces—front, back, sides and mortise-and-tenon joints. The recommended application rate is 0.2–0.3 kg per square meter of wood surface. Allow the chemical to air-dry completely; avoid rain exposure or wiping before drying.
Principle: Submerge wooden blinds in insecticidal and preservative solutions for full chemical penetration into the wood, delivering long-term protection.
Operation: Place blinds in a custom dipping tank, pour the prepared chemical solution, and ensure full immersion. Dipping time ranges from 24 to 72 hours, depending on the chemical type and wood thickness. Remove and air-dry the blinds before installation. Monitor solution concentration and temperature, as suboptimal levels reduce penetration efficiency.
Principle: Force insecticidal and preservative chemicals into wood under pressure. This drives chemicals deep into wood cell lumens and intercellular spaces, forming a uniform protective layer for long-lasting performance.
Operation: Load wooden blinds into a pressure treatment cylinder, seal the cylinder, fill with chemical solution, and apply 0.8–1.5 MPa pressure for 1–3 hours. Remove and air-dry the treated blinds. This method delivers superior protection but requires high equipment investment and processing costs.
During installation, prevent contact between treated wooden blinds and untreated wood or corrosive materials to avoid chemical removal or contamination. After installation, keep the surrounding area clean to prevent dust, grease and other pollutants from adhering to the blinds and compromising treatment efficacy.
Inspect wooden blinds periodically for signs of infestation or decay, such as small holes, discoloration or deformation, and address issues promptly. Blinds exposed to harsh environments—coastal areas, damp basements, etc.—may require re-treatment every few years to preserve long-term performance.
Good price, good service!
Good price, good service!
Good price, good service!