The main reason for the appearance of wrinkled paper in cold heading

Whether it is the front-end output printing or the binding after printing, in the printing process, it pays attention to the post-printing process and clever use of various post-press processing equipment, and has received a multiplier effect. In accordance with its own experience, Century Gold Chart Company summarized the main reasons for the occurrence of wrinkled paper failure in the film.

The paper used for laminating is generally coated paper, offset paper, whiteboard paper, etc. The wrinkling of the paper occurs when the film is covered. Generally, the following situations occur:

1 The workshop's temperature and humidity are not properly controlled. Relative humidity is too high, the paper suction from the "flounce", causing wrinkling of the paper during the coating process, must strictly control the workshop's temperature and humidity.

2 If the ambient temperature is too high or the film temperature is too high, the paper will “tighten” and cause the paper to wrinkle. Press plates can be used to flatten the number of paper knocks and kneading before coating, and reduce the environment and film temperature.

3 Roller pressure is not uniform, causing the paper to wrinkle during the coating process. In this case, correct the roller pressure before starting the operation.

4 The rubber roller itself is uneven, causing the paper in the film to wrinkle. Replace the new rubber roller or grind the old rubber roller and use it again.

5 The dirt on the rubber roller causes wrinkling of the paper on the film. The rubber roller should be cleaned in time. The rubber roller must be kept clean.

6 If the pulling force is too large, the film is rolled up and torn, causing the paper to wrinkle when it is covered. The tension should be properly adjusted.

7 The paper is skewed, causing the paper to wrinkle when it is covered. The operation must be serious, so that the paper delivery service.

Gold picture laminator has 1.6m wide cold laminating laminator, 1.3m wide cold laminator, 1.1m wide thermal laminator and single and double sided optional office laminator, anti-curling laminating machine, etc. . Gold chart multi-function laminator: single, double, cold, hot, thermoplastic, rubber roller pressure height adjustable, adjustable temperature speed, can be installed large roll of pre-coated film, automatic removal of the back of the paper New anti-curling laminating machine, automatic cut film slitting, automatic double tear line tearing edge, negative pressure suction cooling quickly.