Barrier paper-"air filter" and "breathing paper" are world-renowned decorative papers for building materials in Japan. Materials used for shielding in room building materials. \x0d\ 1。 Raw materials: made of natural pulp, flax, silk, rayon, etc. \x0d\ 2。 Air filter: it can filter ultraviolet rays and absorb tar pigments and toxic gas particles in the air, so it is called "air filter"; \x0d\ 3。 Barrier paper is porous. Because pores can increase or decrease with the change of air temperature and humidity, they can play the role of natural ventilation, moisture absorption and warmth retention, so they are called "breathing paper". \x0d\ 4。 Reflective lighting: blocking the indoor environment created by doors and windows, after lighting is turned on at night, the soft and unique reflection and refraction effect of blocking paper itself will make people feel a different warm atmosphere; Vision protection and visual experience are incomparable to other interior decoration. \ x0d \ x0d \ barriers (doors, windows). Japan is a world-renowned representative of indoor building materials. \x0d\ Wooden sliding doors and windows made of natural materials are simple in appearance, smooth in lines, space-saving, flexible in pushing and pulling, light in use, excellent in light transmittance and convenient to install, which can maximize the indoor space and be used to partition indoor and outdoor areas. \x0d\ 1。 Raw material: Tibetan spruce. Tibetan spruce grows in the cold zone at an altitude of 4,000-5,000 meters, with slow growth (it takes hundreds of years to become a timber), stable wood properties and fine grain. It is the only Chinese-made tree species used in Kazuo building materials in Japan. There are also some common products made of Chinese fir and pine, but the wood of these two materials is loose and the deformation probability is high. Pine without degreasing treatment is usually only suitable for producing small-sized products (such as lampshades). \x0d\ 2。 Raw material treatment: artificial drying → natural curing. Artificial drying can reduce the moisture content of wood and prevent cracking and deformation; The natural curing cycle is generally about 60 days, which can make the dried wood reach the balance between water and wood properties in the natural environment and further prevent the cracking and deformation of the finished solid wood products. \x0d\ 3。 Selection of raw materials: the essence of export-grade Tibetan spruce is cut in radial direction, without knots, colorless changes, leather bags, fat sacs, borderless wood, rootless wood and stress, and the annual rings form regular vertical lines. This grade of wood is usually cut into 0.5 mm slices and used for veneer decoration, commonly known as "planing flowers and trees", which is the highest grade and most expensive solid wood raw material. \x0d\ 4. Manufacturing process: rough plate → fine planing → actuarial geometry size → fine sawing size → milling → opening falcon → assembling door frame → manual freeze → correcting geometry size → repairing defects → polishing (whole polishing of heavy sander+manual detail polishing) → trimming → checking flatness → correcting geometry size again → painting putty → manual polishing → painting closed primer for more than three times → It involves more than 60 complicated processes and can be made in about 50 days. Because more than 80% of the working procedures of this product need pure manual operation, it is also called "manual door". \x0d\ 5。 Paint: The primer and topcoat are made of Dongzhou paint imported from Taiwan Province Province, with low benzene, low heavy metal and low formaldehyde emission, and all indicators meet the strict environmental inspection standards of Japanese imported paint products. \x0d\ 6。 Paint quality and health protection: paint painting is completed in the special painting room of the factory, which not only ensures the paint quality, but also eliminates the long-term secondary pollution caused by on-site painting. Therefore, all solid wood paint products delivered by Xincheng Wood Industry to users' homes can meet the high environmental protection requirements of "small smell". \x0d\ 7。 Ultra-narrow door frame and ultra-thin window grilles: the outer door frame and the inner window grilles are narrower and thinner than ordinary wooden doors, and the inner window grilles are ultra-thin solid wood strips with a thickness of only 7 mm, which are completely cut according to Japanese technical indicators to ensure the Japanese style and the aesthetic feeling of indoor doors and windows; High standards of aesthetics put forward very strict requirements on the quality and production technology of raw materials, otherwise, the use of this ultra-narrow and ultra-thin raw material will lead to the fracture, deformation and even falling apart of the finished product due to inappropriate tree species, substandard materials, unprofessional material selection and poor technology. Usually, less than 10% of the raw materials in export-grade Tibetan spruce are suitable for building materials such as barriers. \x0d\ Special note: \x0d\ Grid gate, one of the soul main materials of harmonious room decoration, not only has the basic function of partition, but also creates a quiet and peaceful atmosphere of harmonious room space. \x0d\ Authentic Japanese-style grille door has a beautiful and generous atmosphere, which is thin but not brittle. The material used to make the barrier door is too thick. If the thickness of the inner strip exceeds 1 cm, it should be an ordinary lattice door (Japanese sliding door), not an authentic grating door. \x0d\ Zhangzimen should use natural wood as raw material, and Tibetan spruce is the first choice for China tree species. Authentic Japanese grille doors have slender inner strips and numerous falcon joints, so high-quality wood must be selected to achieve sufficient toughness and durability. \x0d\ The finished products made of non-Tibetan spruce such as pine can't meet the strict requirements of standard Zhangzimen in wood toughness and durability. Users must pay attention to distinguish tree species when purchasing grating doors. In addition, in terms of processing technology, authentic grating doors are all traditional mortise and tenon technology, and more than 80% are hand-made; Some inferior so-called grating doors on the market are mostly fixed with nails or butt bonded. Although the labor cost is low and the finished product price is cheap, the product has a rough appearance and a short service life, which is not suitable for home decoration.