Transfer problems and solutions of heat vinyl transfer machine

When using sublimation paper inkjet printer transfer, some technical problems are often encountered. The following combined with the reflected problems, narrates the reasons and proposes solutions to the problems.

Transfer problems

• The liner material (cotton cloth, sponge, cardboard, etc.) under the flat heat vinyl transfer machine absorbs the ink moisture during the transfer process, which will cause excessive moisture during the transfer process, resulting in the pattern being transferred to the cloth. The color fades or there is local aerosol or water streak interference, so it can be improved by evaporating the moisture on the pad cotton cloth by regular hot pressing before and during the transfer process, if possible The dry gasket material should be replaced in time.

• The printed pattern and the fabric to be transferred should not be damp as much as possible, otherwise the paper will become soft and wrinkled during transfer, especially the roller press, and stripes will appear on the transferred fabric. Moreover, the transfer rate will be lower, the color of the pattern will not be bright, and the outline of the pattern will melt when it is severe. The color contrast between dry transfer and damp transfer will have color difference. The more damp, the more serious the situation.Due to the above factors, the printed paper (to be transferred) and fabric should be placed in a dry room, and the humidity should be controlled below 60%.

• The paper transfers under the flat press, and sometimes ghosting occurs. The reason is that the paper is relatively flat during thermal transfer, like imported paper, and will not be bent immediately when heated under the press, and the paper and fabric can be flattened. At the moment when the hot platen is lifted during thermal transfer, the paper will be adsorbed on the upper platen together with the fabric, and then fall down. At this time, the high-temperature transfer paper falling on the fabric will cause a shifted secondary transfer, forming a light-colored ghost.

Solutions of heat vinyl transfer machine

①Reduce the ascent speed

We can adjust the cylinder (or hydraulic cylinder) speed control valve (throttle valve or throttle valve) on the flat heat transfer press, and turn down the valve that controls the lifting of the pressure plate to slow down the lifting speed of the pressure plate. In this way, the paper and cloth are not easy to be sucked up together when the pressure plate is lifted, so that the problem of ghosting caused by the secondary transfer can be avoided.

② Dip the four corners in water

If the transfer paper is smaller than the fabric, you can apply a little water (a small dot, ≤0.5 square centimeters) to the 4 corners of the transfer paper without printing patterns, and then cover the fabric for transfer. The place dipped in water and the fabric during transfer Adhesive, after transfer, it will not be misaligned with the fabric to cause secondary transfer ghost. After the transfer, if there is a burnt yellow in the place where water is applied to the fabric, it can be wiped off with water.

③ Covering method

If the transfer paper is larger than the fabric and can cover the surface of the fabric, then the paper and fabric will generally not be sucked up by the hot pressing plate. This is because the physical reason for being sucked up is the electrostatic effect of the fabric. When the paper covers the fabric, the fabric is blocked. Because of the electrostatic effect on the surface, the secondary transfer will not be sucked up and down.

④Use special adhesive transfer paper

The best way to avoid ghosting is to use special adhesive transfer paper. The adhesive transfer paper will be pasted with the fabric during transfer, so that no matter how the paper and fabric are sucked up and down, the paper and fabric are always attached. Together, the possibility of shifting and ghosting is eliminated, and the use of adhesive paper can greatly improve the convenience of operation and the pass rate of mass production.

Although the price of viscous transfer paper is slightly higher than that of ordinary transfer paper, it is economical and cost-effective to use viscous transfer paper in general because it greatly reduces consumption and improves work efficiency.

Only master them, you can be calm down when facing these questions.