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    What Is The One Way Wet Pmission Technology?

    2018/9/24 11:59:00 200

    One Way WetFabricHydrophilic.

    Wet and fast drying fabrics are designed to increase the evaporation area and to spread sweat quickly on fabrics.

    One way moisture conduction is faster than fabric is through the affinity and hydrophobicity of the inner and outer fabrics, that is, the outer layer of the fabric is hydrophilic, and most of the inner layer is hydrophobic, and sweat is pported to the hydrophilic outer layer of the fabric from the small part of the inner part of the fabric, and it evaporates quickly in the outer layer.

    Most of the hydrophobic inner layer makes the body wear no sweat when sweating, and the outer layer of cloth quickly evaporates and takes away a lot of heat, which makes the body feel cool.

    One way wet and fast drying fabric is a fabric that responds automatically to changes in external environment (sweat generated by human body) and automatically sends sweat to the outer layer of fabric. Therefore, it belongs to an intelligent fabric.

    Traditional fabric (unmodified cotton fabric), after a certain amount of sweat movement, accumulates moisture evaporation in the fabric, and the body will produce uncomfortable cold feeling (after - exercisechil1).

    Woodcock proposed that under the conditions of excess moisture secretion or condensation, the fabric can be divided into adsorption and non adsorption according to the way in which water exists in the fabric.

    The absorbent fabric makes the body feel uncomfortable after sweating, and it lasts about 2H. The non absorbent fabric will not make the body feel uncomfortable.

    With the improvement of living standards, people are increasingly demanding on the wearability and functionality of leisure and sports textiles.

    In the 2O century 80s and the beginning of this century, people began to study wet fast drying and unidirectional wet fabric.

    These two kinds of fabrics are loved by people because of their superior functions.

    So far, the wet and fast drying fabrics have been widely popular, and the unidirectional wet fabric has been gradually accepted and liked by customers.

    except

    clothing

    In the field of application, wet dry fast drying fiber is also applied to cool bedding.

    The fabric structure affects the contact area and angle of the fabric and water, the conduction speed and distance of the water, and the evaporation area of the water, thus affecting the moisture and heat comfort of the fabric.

    The influence of the area and angle of fabric contact with the skin on the absorption of water on fabric has not been reported.

    Besides temperature and relative humidity, the fabric structure has a great influence on the moisture absorption rate and the final moisture absorption. The fabric structure plays a very important role in the pmission of water in the fabric, such as the wick dot structure.

    Hou Qiuping and others used the "H" section polyester fiber and colored cotton to make wick structure single direction moisture pfer knitted fabric. The results showed that the smaller the density of the wick, the better the moisture permeability and drying performance of the fabric.

    As for the influence of fabric outer structure on water evaporation, although it is generally believed that increasing the surface area of fabric surface can improve the evaporation performance of fabrics, however, F0urt et al's research shows that this method has no significant effect, and points out that the static air in the hairiness of closely woven fabric will hinder the evaporation of water.

    In terms of knitted fabric, the special-shaped polyester fiber is made of 3 kinds of knitted fabrics with different structure and one way moisture pmitting function, that is, one side filling yarn, fish eye structure and French rib fabric.

    The results showed that the directional moisture conductivity of French rib fabric was better than that of the other two fabrics.

    In addition, the structural design principle, knitting technology, dyeing and finishing process, problems and treatment methods of unidirectional wet knitted fabric are discussed.

    For woven fabrics, weft density, structure, fiber type, fiber twist and fiber blending ratio affect fabric moisture permeability and quick drying performance.

    Under constant temperature and humidity conditions, the density of warp and weft has a slight effect on the moisture absorption rate of fabrics.

    However, the results of Zhang Hongxia et al. Show that the moisture absorption and moisture conductivity of fabrics will increase first and then decrease if the weft tightness is increased.

    As for the influence of fabric structure on the one-way moisture conductivity, the results showed that the moisture absorption and quick drying performance of satin were better than that of twill, and the plain fabric was the worst.

    In addition, researchers studied heteromorphism.

    Polyester

    The different distribution of cotton fiber in the inner and outer layers of fabrics, the effect of different contents and the density ratio of the warp and the warp on the moisture absorption and quick drying performance, and the corresponding production process, production difficulties and matters needing attention are also discussed.

      

    Dyeing and finishing of wet and fast drying fabrics

    Commonly used hygroscopic and quick drying

    Polyester

    Due to the particularity of its surface structure, if the dyeing and finishing process is selected, improper selection of -v-r technology will result in fiber surface structure damage and color difference.

    The color yield of profiled fiber is lighter than that of ordinary polyester fiber, and the lighter effect of "+" type is more obvious than that of "type". After high temperature dyeing (such as 130 degree), the K/S value of two different cross section fibers is quite different, and the dyeing performance of new Coolmax fiber is poor.

    When dyed polyester fabric and cotton yarn interwoven fabric are dyed, the same color effect can be obtained by choosing the appropriate process, but the effect of dyeing is poor.

    Zhang Zengqiang and Zhu Jiangbo interlaced cotton / polyester Dacron by cellulase.

    Denim

    Softening finishing can improve the softness of fabrics while maintaining good moisture absorption and sweat perspiration.

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