The diversion layer materials used in disposable sanitary products such as traditional sanitary napkins, baby nappy and incontinence pads are generally processed by chemical bonding and hot melt bonding. Compared with the chemical bonding process, the material made by the hot melt bonding process is soft, fluffy and has strong permeability; no adhesive is required during the processing, it will not pollute the environment, and the energy consumption will be greatly reduced. Furthermore, from an energy consumption point of view, the hot melt bonding process and the chemical bonding process require relatively little energy. Experiments show that: energy consumption of hot melt bonding: energy consumption of dipping bonding = 1:4.7 energy consumption of hot melt bonding: energy consumption of foam dipping bonding = 1:3.0.

Baby nappy market potential

At present, the specifications of the diversion layer products used in the Chinese market mainly include the width of sanitary napkins 2.5~3cm, the width of mini napkins/pads 1.8~2.7cm, and the width of baby baby nappy is 7~8cm. The length of the product is determined by the manufacturer of the absorbing product according to the needs of the product. In the production line of the absorbent product, the diverter layer structure is laminated into the absorbent product by gluing or punching. According to the Tissue Paper Committee, China's current production of baby nappy and women's sanitary napkins has increased significantly. If all the diversion layers are added, the market capacity is about 5,200 tons. According to the quantification and specification of such materials added to each sheet of baby nappy and sanitary napkins, they are 50g/m2.075mx0.15m and 40g/m2.028mx0.08m respectively. . Throughout my country, the consumption growth of absorbent hygiene products, especially diaper products, is still accelerating, so this structural material has great market potential.

Baby nappy technology upgrade

In China, the diversion layer material is still a new concept, and there are few domestic studies. Large foreign companies have studied such materials earlier, and various related materials are widely used in disposable sanitary products. At present, 90% of domestic high-end materials rely on imports, and related technologies are monopolized by foreign companies such as Kimberly, Procter & Gamble, Unicharm, and Kao. Therefore, it is of great significance to carry out research on new material manufacturing technology, structure and performance, master key material manufacturing technology with independent intellectual property rights, and meet the functional requirements of domestic and foreign sanitary products for the innovation and upgrading of non-woven products and disposable sanitary products.

Therefore, this study can provide some reference value for the in-depth understanding of the abutment layer in baby nappy domestic industries. At present, the domestic hygiene products industry is gradually occupying market share, and it is bound to pay more attention to the improvement of this structure.