TYPE I Non-woven Sterile Disposable Medical Protective Coveralls requirements for thermal and humid comfort: clothing comfort refers to the wearer's subjective perception and judgment of whether the clothing is comfortable or not, combining various physiological, physiological and psychological processes. Among them, the thermal and wet comfort of clothing is an important indicator for evaluating the comfort of clothing.

  Heat-humidity comfort refers to the coupling of heat and humidity in the micro-environment composed of human body, clothing and the external environment, so that the human body and the external environment can achieve the necessary thermal balance, and the energy exchange can reach a balanced state, so as to maintain a certain degree of comfort and achieve the human body's comfort. It is not hot or cold, not humid and airtight, and it is comfortable and satisfying. Since it is difficult to use a single index to characterize the thermal and humid comfort, the sweating dummy method and the thermal dummy method are commonly used to evaluate the thermal and humid comfort of clothing, and the requirement for moisture permeability is not less than 2500g/(m2d). Although the better liquid barrier ability helps to improve the protective performance of TYPE I Non-woven Sterile Disposable Medical Protective Coveralls, it also makes it difficult for the sweat produced by the human body to be excreted. Additionally, the closed-open garment construction makes TYPE I Non-woven Sterile Disposable Medical Protective Coveralls less comfortable in heat and moisture.
  At present, TYPE I Non-woven Sterile Disposable Medical Protective Coveralls, which have a large market share, are usually prepared by spunbond lamination method or spunbond-film-spunbond composite method. Although the TYPE I Non-woven Sterile Disposable Medical Protective Coveralls prepared by this technology have good protective performance, there are some deficiencies in thermal and humid comfort. This is mainly because polypropylene spunbond nonwovens do not absorb water, and the protective film used in the lamination method has poor air permeability.
  Although a single polypropylene spunbond nonwoven has good strength, it cannot effectively protect particles and bacteria in the barrier environment due to its large pores. Therefore, a single polypropylene spunbond nonwoven needs to be combined with a protective film to meet the Requirements for the use of TYPE I Non-woven Sterile Disposable Medical Protective Coveralls. Compared with polypropylene spunbond nonwovens, the surface of the protective film is denser, so the use of protective film improves the protective effect of TYPE I Non-woven Sterile Disposable Medical Protective Coveralls. However, due to the lack of pores on the surface of the protective clothing, the "sweat" produced by the wearer is difficult to discharge, thus aggravating the wearer's sultry feeling. In order to improve the wearing comfort of protective clothing, most manufacturers currently use calcium carbonate powder to prepare micropores on the surface of the protective film in the production of special materials, thereby improving the breathability of the protective film. However, too much calcium carbonate powder will reduce the protective performance of the protective film. Therefore, balancing the protection and comfort of protective clothing is still an important issue for medical protective clothing.
  Due to the heavy workload of medical workers, in the process of treating patients, medical workers often sweat a lot. If TYPE I Non-woven Sterile Disposable Medical Protective Coveralls do not have moisture absorption and quick drying function, the protective clothing will not expel a lot of moisture. At present, the main material of medical protective clothing is polypropylene spunbond non-woven fabric. Since polypropylene has no hydrophilic group, it is difficult for the wearer to expel moisture, resulting in poor thermal and wet comfort experience for the wearer.