The application of brush roller in the forming process of bucky foam artificial leather

　First: leather surface youdao marks 1. Foreign matter impurities in the paste or surface treatment agent. Should be cleared thoroughly. 2. There are deep scratches on the steel belt surface. The new steel belt should be replaced.
　Second: the leather surface pattern is not clear 1. The embossing roller is not placed horizontally. The horizontal position should be adjusted. 2. Uneven surface temperature, low temperature on both ends. The auxiliary heat source should be added at low temperature so that the temperature distribution of the roller surface is even.
　Third: after the storage of the storage, the surface of the leather has a cloth. Cooling should be strengthened. 2. The storage environment temperature is too high, the finished product should be stored in low temperature environment.

　Fourth: the surface of the leather has a regular defect. 1. The roller or embossing roller has impurity on the rubber roller. Remove impurities on the roll thoroughly. 2. Surface defects of roller. The roller face should be fixed to remove the defect of the roller.
　Fifth: the leather is bubbling up 1. The foaming temperature is too high. The foaming temperature of the plasticized oven should be reduced properly. 2. The water content in the paste is too high. The water in the paste should be removed or the paste with low water content should be removed. 3. Bucky moisture should be dried.
　Sixth: after foaming after bubble, it is too small. The pressure of embossing roller should be reduced properly to increase the roll gap. 2. The traction force of foam artificial leather should be reduced properly.
　7. The leather surface is convex. The raw material is wet. Predrying should be carried out. 2. The volatile content of the formula is too high. Volatile additives should be avoided in foaming formulations. 3. Improper additives. Fast gel plasticizer and slow accelerator should be used. At the same time, high initial temperature should be adopted.
　8: uneven foaming of leather surface 1. Excessive amount of air in plasticized sol. The paste should be degassed. 2. When the foaming agent is dispersed, the foaming agent should be ground with the plasticizer.
　The transverse thickness of the coating is not uniform. The transverse thickness of the coating is not uniform. It is necessary to adjust the distance between the roller of the scraper, so as to make the thickness of the coating uniform 2. The temperature of plasticized hair bubble oven is not uniform. The oven temperature should be adjusted appropriately to distribute the temperature evenly.
　Tenth: foam layer and bucky adhesion are not fast or peel off 1. The gel is too hot. Reduce the temperature of preheating oven properly. 2. The brush roller is too far from bucky. The foam layer cannot be removed from the steel belt when the brush roller and the cloth base are separated by proper adjustment. Should be reduced appropriately.
　1. Deformation deviation of steel band 1. The steel band is partially deformed by heat. The steel belt should be operated before the car starts to warm up, and then stop after the steel belt is cooled. 2. The tension roller is not parallel, making the steel belt deflection while running. The steel belt tension should be adjusted in time to make it operate in the middle of the tension roll.
　Article 12: color discoloration 1. Improper use of accelerator and stabilizer. It should be avoided with the lead - containing agent and the sulfide stabilizer. For example, the inner layer USES lead - causing agent, which USES sulfur-containing stabilizer in the surface layer, which can result in the discoloration of the film.
　The temperature of preheating oven is too low. The temperature of the preheating oven or the small exhaust outlet should be increased appropriately. 2. The viscosity of the paste is too low and should be improved appropriately.