Importance Of Knowledge Of Thermal Processing Equipment For Clothing Production

Hot working refers to the process of achieving certain requirements by means of heating.

In terms of clothing production, the so-called hot working is actually thermoplastic and wrinkle finishing of clothing materials (fabrics).

The basic conditions for hot working are temperature, pressure and time, and humidity as well.

For a fabric with a certain humidity, it can be heated to produce plasticity by proper temperature.

Then, under certain pressure, the original shape of the fabric is changed to suit the specific needs.

The hot surface (working surface) of the heater is generally a smooth plane, but the surface of the fabric is granular.

When the heater is in contact with the fabric, the protruding fiber points on the fabric can be contacted with the hot surface, and the other concave parts are not in contact with the hot surface.

Because the fabric material is a few insulation materials, the heat conduction ability is very poor, so, if there is no certain conditions, it is difficult to make the whole fabric warm even.

Therefore, in production practice, people often rely on the function of water.

The conductivity of water is far higher than that of the fiber. When the fabric inhaled a certain amount of water and touched the hot surface of the heater, the water will quickly rise and penetrate into the fiber with vapor, so that each fiber will be heated evenly, so that the whole fabric can reach the plastic temperature at the same time.

At the same time, after swelling and swelling, the fabric is easy to press and deform.

Pineapple show underwear thinks that pressure is the main way to change the shape of the processed parts.

During heating, when the temperature of the workpiece is increased from room temperature to plastic temperature, a certain pressure can be applied to the workpiece, and the original shape can be changed.

If the workpiece is heated without any pressure, the shape of the workpiece will not change when it is restored to room temperature, that is to say, the workpiece can not be processed and collated.

Production practice shows that when the pressure is too high, the parts are easy to produce aurora.

When the pressure is too small, the shape of the workpiece can not be changed.

The duration of hot working mainly depends on the temperature of the heater.

The heater temperature is high, the processing duration is short, conversely, the processing duration is long.

In order to improve work efficiency.

The temperature of the heater should be slightly higher, that is to say, the processing time should be shortened as much as possible.

But considering the degree of heat resistance of the fibers.

Tools and equipment for hot finishing of garments are commonly used with electric irons, ironing machines and bonding machines.

There are three kinds of heat sources for these hot working equipment: one is electric heating; two is steam heating, the other three is microwave heating.

The advantages of electroheat are mainly that it is convenient to use, no auxiliary equipment is needed, the structure of the equipment itself is simple, and the manufacture is convenient.

However, from the point of view of energy conservation, the use of electric heating is not economical and wastes energy.

At the same time, the temperature of the working face is uneven, the processed fiber is pferred from top to bottom, the temperature of the fiber is not up to the same temperature, and the processing effect is not ideal.

In addition, the temperature detection system is not perfect, the temperature is slow, and it is easy to burn the fabric locally.

With steam heating, the fabric fibers are not easily damaged, the processed parts are heated evenly, no aurora is generated, the processing quality is high, and energy is saved.

Larger auxiliary equipment is needed for steam generation, and steam piping is needed.