FYI Tester Instrument

  When the fabric is subjected to a specified pressure, the vertical distance between the front and back sides is called the thickness, generally expressed in millimeters. Fabric thickness has a great influence on the wearing properties of the fabric. For example, the fastness, warmth retention, breathability, windproofness, stiffness and drape of the fabric are all related to the thickness of the fabric to a large extent. Precautions for fabric thickness testing When replacing the presser foot or when the instrument is not used for a long time, please place a protective rubber pad between the presser foot and the reference plate to protect the measuring surface from damage. After each experiment, the power switch should be turned off and the power plug of the instrument should be pulled out of the power socket. Clean and maintain the instrument well, and add a small amount of clock oil regularly. Carry out regular instrument calibration as needed to ensure the accuracy of instrument m

  The contact angle refers to the angle formed when the liquid phase is sandwiched by the gas-liquid interface and the two tangents of the solid-liquid interface at the solid surface of a liquid drop on a solid horizontal plane. It is one of the important parameters that characterize the wettability of a liquid on a solid surface. It can be used to understand the degree of wetting of a liquid on a certain solid surface. A contact angle measurement device is mainly used to measure the contact angle of liquid to solid, that is, the wettability of liquid to solid. It can measure the contact angle of various liquids with various materials. It is widely used in mineral flotation, water injection and oil recovery, washing, printing and dyeing, welding, etc. Contact angle definition Narrow sense: refers to the angle θ between the tangent to the gas-liquid interface and the solid-liquid boundary line at the intersection of gas, liquid and solid; Broadly sense: Contact angle is a system compose

  As people’s living standards improve, their requirements for life are also gradually increasing. Textile, an industry closely related to life, has also developed rapidly. In particular, the comfort of clothing or home textile products is one of the most important concerns for consumers. Therefore, a comprehensive study on the relationship between fabric mechanical properties and style is crucial. Fabric style is an important indicator for evaluating the quality of textile products, and it is also an important factor affecting textile sales. Consumers mainly judge product quality through touch and vision. Fabric hand feel is an important factor affecting fabric performance and one of the important evaluation indicators for the comfort of textiles and clothing. Therefore, textile hand style measuring instruments have always been a research direction of close concern in the field of textile science and technology. It has become an urgent need to quantitatively evaluate fabric hand style

  In the previous article, we mentioned thermal and moisture comfort, which is one of the most important factors in the human body’s subjective judgment of clothing comfort. An important heat dissipation function of the human body is carried out by the secretion of sweat and its evaporation. Water vapor takes away the heat from the body or the surface of the fabric through evaporation. Research has found that in the microclimate environment of clothing, the sweat absorption of clothing, the transmissibility of sweat by fabrics, and the location of evaporation on the fabric are all related to the comfort of wearing. Currently, functional fabrics with good liquid moisture management capabilities are widely used in sports and outdoor clothing, high-end casual wear and uniforms. The properties of these fabrics include: quick drying, excellent moisture permeability and perspiration (can quickly remove sweat from the skin and keep the skin dry). Some traditional standards and testing methods

The heat and water vapor transfer properties of textile fabrics are major determinants of the wearer’s thermal comfort. The heat resistance of a fabric represents a quantitative assessment of the thermal barrier effectiveness the fabric provides to the wearer. The resistance of fabrics to water vapor is a critical property for clothing systems that must maintain thermal equilibrium in the wearer’s body. Clothing is an intermediary between the skin and environmental conditions, has high water vapor permeability, and can provide cooling to the body through evaporation. In high activity levels or hot environments, thermal resistance values alone are insufficient to characterize and compare clothing systems. Sweat evaporation becomes an important way for heat loss. Additionally, in cold environments, high moisture permeability is important to minimize the accumulation of water in the garment, which can lead to increased discomfort. Therefore, the heat resistance and water vapor resistance