What are the factors that affect the calendering effect

- Jul 21, 2019-

First, the edge difference or head and tail difference fabric should be reduced on both sides of the fabric, the middle should be increased pressure (the principle is that the roller has medium height); the head and tail difference should be the temperature is not consistent, the general temperature is controlled at plus or minus 5 degrees Inside.

Second, the hand feels hard, the hard feel after finishing should consider whether the temperature pressure and speed are too high and too slow, after the oil surface is hard, the mirror can be cold pressed, of course, if the fabric is too hard before finishing, it is unlikely after rolling It becomes very soft, and the fabric of the nylon fabric becomes softer and softer after rolling.

Third, the gloss is too bright or too dark. The brightness is mainly determined by the temperature. Too bright should lower the temperature, speed up and reduce the pressure. Too dark is the opposite.

Fourth, wrinkle printing and death printing is a common problem of calendering, the wrinkles on both sides should increase the tension of the cloth, and the middle wrinkles should reduce the tension of the cloth. The middle wrinkles should also check whether the surface of the guide roller under the cloth is clean. If the friction is too clean, it will wrinkle or cause the cloth surface to be scratched! Generally, the distribution of the processing pieces should be processed into large packages and then processed to achieve constant tension.

5. Poor anti-velvet effect The anti-velvet effect is not good. It should slow down the speed and increase the temperature pressure, or increase the number of calendering.

Sixth, the door width is too much, the width of the fabric will be reduced after calendering, the normal will be reduced by 1--3 cm, too much shrinkage should reduce the tension of the cloth and cloth, the higher the temperature will shrink many.

Seven, calendering spots are the most common symptoms, the roller surface is not clean (such as roller surface wire), the roller surface must be wiped frequently in production, and the roller surface damage will also produce calendering spots (such as nylon roller pressure) To the pits caused by hard objects, etc.).