Upholstered furniture mainly refers to furniture with sponge and fabric as the main body. Mainly include sofas, mattresses, -family:Song type”>soft bedandwithCompatible productsetc. Among them, mattresses and sofas are the two most important types of upholstered furniture. Software The material of furniture is soft and elastic, which can make people get a full rest, reduce fatigue at work, and obtain physical and mental pleasure. Therefore, it is also one of the most widely used and most frequently used furniture, and plays a pivotal role in the complex and huge furniture family. status.
Behind the comfort of upholstered furniture is the variety of internal multi-layer structures The role played by composite materials:
Taking mattresses as an example, if divided according to the main material, the mattress can Divided into spring mattresses, palm mattresses, sponge mattresses, latex mattresses, the most important of which is sponge. Sponge generally refers to polyurethane sponge, because of its porous honeycomb structure, it has low density, good elastic recovery, sound absorption, breathability, heat preservation and other properties. And the hardness and resilience can be adjusted through formula and process to meet various product needs. The foreign body sensation of the sponge mattress is relatively low, and it has unique stress relief and shock absorption properties, and the time to fall asleep can be reduced compared with other mattresses60%, it is easier to maintain a deep sleep and provide consumers with quality sleep.
fromChemistryangle , the sponge can be divided into: ordinary sponge, slow rebound Sponge, high resilience sponge. From From the perspective of craftsmanship, it can be divided into memory foam, temperature-sensing sponge, air-sensing sponge, imitation latex sponge and so on.
Different types of sponges have different hardness and resilience, so Mattress products with sponge as the main filling layer can also have different “sleeping feeling” to meet the needs of different customer groups.
Although there are various types of sponges, they are all made of raw material isocyanate.�The most important ones areTDI,MDI) and polyether polyol are generated under the action of blowing agent and catalyst. Among them,TDIandMDIcomplicated production process, there are only a few manufacturers in the world who completely control the production craft. AndTDINot only is the production process complicated, but it has certain toxicity before it is completely volatilized, so Environmental requirements are also strict. TDIProduct purity, acidity, hydrolyzed chlorine content, etc. directly affect sponge products performance,ThereforeTDIThe improvement of product quality can upgrade sponge and upholstered furniture products Providing strong material support is also a deep demand for the development of the sponge and upholstered furniture industry.
In order to better meet the needs of downstream customers, TDIManufacturerContinuously optimize the production process, through the development of efficient reaction technology, the optimization and adjustment of key parameters and precise control, from the source Minimize the formation of by-products and impurities. At the same time, according to the impurities produced in the reaction, the impact of each component on downstream production and application is studied one by one, and the development of TDIProduct refining technology effectively removes solvents, light and heavy components and trace impurities, greatly improvingTDIProduct quality.
Currently, high qualityTDIThe products are widely used in soft home furnishing and high-end coating industries, and have been well received by customers. In the sponge industry, high-purity, low-hydrolyzed chlorineTDI, and active hydrogen-containing compounds The reaction efficiency of the molecule is better, which can effectively reduce the production cost of the enterprise. At the same time, the cell structure of the prepared sponge product is fine, the hand feels more supple, and the user comfort is significantly improved.
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