Matters needing attention in gas dryer drying clothes of different materials

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The wet air in the rainy season always makes clothing care a problem, and gas dryers are gradually coming into the home with their high efficiency and energy saving characteristics. However, clothes made of different materials have different requirements for drying conditions. Scientific matching of drying modes can not only prolong the life of clothes, but also avoid fiber damage. This materials science will analyze the key points for attention in the use of gas dryers.

Ⅰ、Principle of fiber characteristics and drying mode adaptation

There are essential differences in thermal response characteristics between natural fibers and chemical fibers.

1. Cotton fiber as a natural plant fiber, its cellulose chain can remain stable below 110 °C, so the standard drying mode (60-80 °C) can activate the capillary action between fibers and restore the bulkiness.

2. Wool protein fiber will produce scale layer curl above 70 °C, low temperature (40 °C-RRB- wool mode should be used to maintain fiber smooth.

3. The glass transition temperature of synthetic fibers such as polyester fibers is about 85 °C, exceeding this temperature will lead to molecular chain slip, and it is recommended to use a chemical fiber-specific mode (50-60 °C) . Blended fabrics should follow the principle of“On the low”, priority to match the worst heat-resistant fiber components.

Ⅱ、Cooperative control of temperature and time

When using gas dryers to dry clothes, the coordinated control of temperature and time is very important. Cotton fabric drying can be divided into three stages: initial high temperature (75 °C) to quickly remove surface moisture, middle cooling (60 °C) to balance the difference between internal and external humidity, end low temperature (45 °C) to complete fiber moisture regain. Compared with constant temperature drying, the stepped temperature control can save 15% energy and reduce 30% wrinkling. Time control should be combined with the adjustment of clothing load. Cotton sheets take 60-75 minutes for a standard load (5 kg) , while blended garments can be reduced to 45-60 minutes for the same weight. It is recommended to check the fabric humidity every 15 min and terminate the procedure in time when the relative humidity drops to 12%-15% to avoid electrostatic accumulation and mechanical strength loss due to excessive fiber drying.

Ⅲ、Decontamination of clothes

The binding force between stain components and fibers affects the drying effect. Grease stains oxidize and polymerize when heated, forming covalent bonds that are more difficult to remove, so oily clothing needs to be pre-treated with Surfactant. Protein stains (such as blood stains) at high temperature will denature and coagulate, it is recommended to use enzyme detergent in 40 °C after washing and drying. For silt-like granular stains, mechanical stripping after complete drying is more effective than wet wiping, which can avoid embedding foreign matter between fibers. Special attention should be paid to the white cotton fabric treated with chlorine-containing bleaching agent, which should completely neutralize residual chlorine before drying to prevent high temperature accelerating fiber degradation.

Conclusion

The scientific use of gas dryers requires an understanding of the interplay of material properties and thermodynamic principles. By accurately matching the drying mode and strictly controlling the temperature and time parameters, it can not only achieve efficient drying, but also maximize the protection of clothing fiber structure. Master these scientific methods, can make modern appliances truly become the right-hand man of clothing care, in the wet season can also keep clothing in the best condition.