For dry is contains so many toluene and butanone, toluene dosage is bigger, because performance is good, the dissolution of toluene for wet method is to contain 650-700 kg of pure DMF, so for pulp, such as toluene, DMF price changes largely affect the cost of sizing agent, dosage of the simple reason that accounts for more than major.

Polyurethane pulp used as a coating preparation of pu synthetic leather, artificial leather.Pu synthetic leather with soft luster, natural, soft feel, the appearance of the leather feels strong, with substrate bonding performance, wear resistance, bending resistance, anti-aging, good mildew resistance and excellent mechanical properties, but also have good cold resistance, air permeability, can wash, easy processing, the advantages of excellent inexpensive price, is the ideal substitute of natural leather, widely used in clothing, shoes, bags, furniture, sports and other industries.

All leather application field, it can replace, but also can be applied to leather can't application field, leather market is vulnerable to animals (cattle, sheep, pigs and other market, the influence of mad cow disease).

Dry pu slurry, in the process of application, by heating evaporation will paste the solvent evaporates, solvents are mostly with toluene and butanone, evaporate solvent can't recovery, not only pollute the environment, but also creates unnecessary waste.Wet pu slurry, the machining process using water to DMF extraction (the reason is that have unlimited DMF and water solubility), more environmental protection, and to produce synthetic leather with good performance of moisture permeability, air permeability, soft, plump, light, more the style and appearance of the natural leather, so development speed is amazing.