PU PVC Synthetic Leather Making Plant

1.  Introduction
Synthetic leather was first produced near the turn of the century. The insufficient supplies and high cost of genuine leather brought about the demand for synthetic leather. Synthetic leather has gradually replaced genuine leather in many fields. Over the past few decades, the demand for high quality synthetic leather has increased tremendously.
Though there is a number of materials are used to produce synthetic leather, PU and PVC remain the most commonly used in the market. PU synthetic leather is more flexible and has a much higher tensile, tearing and bursting strength. Further more, whereas PVC synthetic leather can only be used to make items with a low stress tolerance, PU synthetic leather can be used to make a wide variety of products which must be made from strong materials with a high stress tolerance such as boots, shoes bags, luggage, belts, gloves, and upholstery for furniture and car seats.


2.  General process Information
2.1  Application of Product

2.1.1 ESPECIALLY IN CLOTHES.
2.1.2 FURNITURE, PURSE.
2.1.3 SHOE’S MATERIAL.
2.1.4 SOFE LEATHER MATERIAL.

2.2  Description of Process
The process is a PU sheet formed and then laminated onto the base cloth. This is done by coating release paper with a layer of a mixture containing MEK, EA solvents and PU resin. The paper is dried in an oven at 100℃. It is then recoated with the same substance and again dried in an oven. This time at 110-140℃. This sheet of PU is then laminated onto the base cloth. At this point the paper on which the PU was formed is released. The release paper may be used up to 10 times. It should, none the less, be inspected for tears each time it is used. This product is highly valued in the garment, shoe, luggage, and industries since the feel and even the smell are much closer to genuine leather.
2.3  Flow chart


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