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How to use cold film correctly?

December 21,2022

If you are not familiar with the use method of cold mounting film,  the rejection rate will rise. Now, the correct use method is provided as follows:

The success of picture and text mounting depends on the stability of the machine itself, but more importantly, the user's operation skills. In view of the widespread use of simple and convenient cold pasting machine in China at present, several operating methods are introduced for your reference.

First, the adjustment of rubber shaft pressure

1. Turn the pressure regulating handle on the box on both sides of the machine to separate the upper and lower shafts, and put the picture to be mounted and the cold mounted film between the two shafts at the same time. Turn the pressure regulating handle to make the upper shaft move downward in parallel. When the pressure regulating handle is suddenly relaxed, it means that the upper and lower shafts are already in contact. Please don't press down at this time, just gently tighten the pressure regulating handle. If the pressure continues, the shaft will be deformed and the operation will fail.
2. After the pressure is adjusted, withdraw the picture and cold mounting film between the two shafts. Prepare for laminating.

Second, mounting cold mounting film

1. Mounting small drawings (within 1.5m in length)
Press the cut cold mounting film (which should be slightly larger than the figure) between the two shafts (the adhesive film is downward and the isolation paper is below), and the front end of the cold mounting machine is pressed by the two shafts. Separate the adhesive film from the isolation paper, pull the adhesive film to the rear of the machine, and wrap the upper roller. The isolation paper is laid flat on the front working panel, and the isolation paper is lightly pressed by hand near the shaft, so that the adhesive film can be separated from the isolation paper as much as possible, and the mounted figure is placed on the isolation paper for alignment. Do not only push the two sides of the picture inward, and do not pay attention to the parallel pressing of the front of the picture into the shaft; otherwise, the part pressed into the shaft will gradually become wrinkled, resulting in failure. If you are not sure to press the drawing into the shaft in parallel, you can use 1cm wide double-sided tape (2-3cm in length) to stick the front end of the drawing with the isolation paper at three to four points. Pay attention to sticking the middle before gradually pasting it in parallel to both sides.

2. Mounting large drawings (more than 1.5m in length)
When mounting a picture over 1.5m, the most important thing is to prevent the deviation of the picture and the adhesive film. The part just pressed into the shaft is accurate, but after a length, it will be a thousand miles away. So the operation method must be proper. When making a super-long picture, first of all, the upper shaft should be lifted to the maximum lifting degree. Secondly, the cold-mounted film and the picture should be overlapped together, with the cold-mounted film on the top and the picture on the bottom (the glue surface of the cold-mounted film is on the top, and the front of the picture is close to the back of the isolation paper. Roll it into a cylinder, put one end on a clean floor or poke it on the desktop, and hold it with your hands. Never let the picture be misplaced. Put the cold-mounted film and the picture between the two shafts at the same time. To prevent loosening and dislocation, try to straighten and level the machine, then move the upper shaft parallel to the downward direction, and adjust the pressure (according to the aforementioned adjustment method) to press the cold mounting film and the drawing. In order to ensure that the attached picture and adhesive film do not deflect, you can first turn the machine and try to walk again, but don't go out of the shaft. If deflection is found during the trial run, the operation should be restarted. If it does not deflect, it can stop rotating at any position and lift the cold mounting film at one end. Cut the isolation paper with scissors (be careful not to cut the adhesive film), then turn it outwards to the other side, and turn the machine. While the shaft is rotating, the isolation paper is constantly peeled off, and the adhesive film is attached to the picture. After the above parts are completed, turn the machine in the opposite direction to attach the adhesive film to the picture on the other side by the same method, and the mounting work is completed.

3. Mount the mounted picture on the decorative board.
First, stick the double-sided adhesive paper on the back of the framed cold-framed film. The sticking method of double-sided adhesive paper can be the same as that of the above two methods of pasting cold-mounted film. Put the picture of double-sided adhesive paper on the decorative board, lift the upper shaft of the machine, put the board and the picture together between the two shafts, adjust the pressure (the adjustment of pressure is described in the next section), then open the isolation paper of double-sided adhesive paper at any end, fold it in reverse, and cut off a part. Turn the machine to make the stripped part of isolation paper stick on the decorative board. Turn the unpainted part to the other side of the shaft, turn the machine and constantly peel off the isolation paper (same as the method of making a large picture), and the picture will be pasted on the decorative board. The above-mentioned methods still require the operator to constantly explore the experience in practice, which may cause inconvenience or even failure at the beginning. At this time, we should carefully find out the reasons, mainly in the operation methods to find out the reasons, reduce failures and improve the success rate. As the saying goes, practice makes perfect. After careful operation, you will soon become proficient. Here, if you often make extra-long drawings, you should buy a cold pasting machine with high automation, strong performance stability, easy operation and no space occupation. For example, the whole roll of film can be installed, the machine can automatically separate and roll the isolation paper when it rotates, and even the cold mounting film and double-sided adhesive can be pasted at the same time. And the whole roll of the framed film can be rolled up. The operation is very simple and it is an ideal post-production equipment.

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