How to determine the setting temperature and time of the towel cloth setting machine
The setting temperature and time of the terry cloth setting machine are determined according to many factors such as the material, thickness, color, required setting effect and production process requirements of the terry cloth.
1. Material factors
Fiber type: Different fibers have different tolerance to temperature. For example, natural fibers such as cotton and linen can usually withstand relatively low temperatures, generally around 150℃ - 180℃. Synthetic fibers such as polyester and nylon can withstand higher temperatures, possibly 180℃ - 220℃ or even higher.
Blending ratio: If the terry cloth is a blended material, the characteristics of different fibers need to be considered to determine the appropriate setting temperature. For example, the setting temperature of a terry cloth blended with cotton and polyester may be between the temperature ranges that cotton and polyester can withstand individually.
2. Thickness factor
Thinner terry cloth: Usually the setting temperature can be relatively low, because the heat can penetrate more easily, and the setting time can be relatively short. For example, for thin terry cloth, the setting temperature may be 160℃ - 180℃, and the time is about 30 - 60 seconds.
Thicker terry cloth: higher temperature and longer time are needed to ensure that the internal fibers are fully heated and set. Possible setting temperatures are 180℃ - 200℃, and the time is 60 - 90 seconds or even longer.
3. Color Factor
Light-colored terry cloth: Generally speaking, the temperature of light-colored terry cloth can be slightly higher when it is fixed, because light-colored dyes are relatively stable and are not easy to change color at high temperatures. But it should not be too high, so as not to affect the performance of the fiber.
Dark terry cloth: Because dark dyes may fade or change color more easily at high temperatures, the setting temperature is usually relatively low. For example, the setting temperature of dark terry cloth may be 10℃ - 20℃ lower than that of light colors.
4. Requirements for shaping effect
High dimensional stability requirements: If the towel cloth needs to have very high dimensional stability, a higher setting temperature and a longer time may be required. This will make the fibers more closely bonded and the shape more firmly fixed.
High softness requirement: Under the premise of ensuring dimensional stability, if the towel cloth is also required to have high softness, it may be necessary to appropriately lower the setting temperature and shorten the setting time to avoid excessive hardening of the fiber.
5. Production process requirements
Connection between previous and next processes: It is necessary to consider the coordination with previous and next processes. If the towel cloth is specially treated in the previous process, such as dyeing, printing, etc., then the setting temperature and time should be adjusted according to the characteristics of these treatments to ensure the smooth progress of the overall production process.
Production efficiency: Under the premise of satisfying the shaping effect, production efficiency should also be considered. If the shaping time is too long, it will reduce the production speed and increase the cost. Therefore, it is necessary to find a balance between shaping effect and production efficiency.
In actual production, it is usually necessary to determine the best setting temperature and time through experiments and experience accumulation. You can first conduct a small batch test to observe the setting effect of the terry cloth at different temperatures and times, and then make adjustments based on the test results to finally determine the setting parameters suitable for the specific terry cloth.
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