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Soybean protein fiber
Test Report of Comprehensive Properties of Soybean Protein Fibers Department of Knitting Engineering, College of Textiles, Dong Hua University
1.Wet Permeability and Moisture Vapor Transmission Characteristics In order to test and compare these two properties of Soybean fibers, 6 jersey fabric samples were knitted with 6 kinds of different yarns, as illustrated in Table 1. Table.1 the Type of Yarn Material
Table.2 Parameters of Samples
The wicking rates of first 10 min and the wetting areas of 1 min of all samples were tested, and the synthesized values of wet permeability were calculated, as illustrated in Table. 3. Table.3 the Synthesized Values of Wet Permeability (Z)
Table 3 shows that the synthesized values of wet permeability of PP and PE samples are highest in all the samples. And the synthesized value of wet permeability of Soybean sample is lower than that of PP and PE, but higher than other samples. The sequence of wet permeability of these samples is listed as follows: D3>D2>D1>D5>D6>D4 The water cup method was used to measure the quantities of permeated moisture vapor through the samples. In the experiment, the environment dry bulb temperature is 35℃, the wet bulb temperature 25℃, relative humidity is 35%, the test time is 2 hours, and the sample area is 32.75 cm2. The tested quantities of permeated moisture vapor through the samples are listed in Table. 4. Table.4 the quantities of permeated moisture vapor through the samples (g)
It is obvious that, from the data of Table.4, the moisture vapor transmission property of soybean sample is the best in all the samples. The sequence of the moisture vapor transmission property of these samples is listed as follows: D1>D6> D 5> D 3> D 4> D 2 The wet permeability of Soybean is lower than that of PP and PE but higher than PAN, PA and silk; while the moisture vapor transmission property of soybean sample is better than silk, PP, PE, PA, PAN. Therefore, soybean fiber is a kind of comfortable fiber with relatively good wet permeability, excellent moisture vapor transmission property and dry touch. 2. Warmth retention property In order to test and compare the warmth retention property of Soybean fiber, 4 jersey fabric samples were knitted with soybean yarn, PAN yarn, cotton yarn and wool yarn, respectively. The parameters of samples are listed in Table. 5. Table.5 Parameters of Samples
The synthesized values of three heat parameters (warmth retaining rate, thermal resistance and thermal transmissivity) of all samples were tested and calculated, as illustrated in Table.6. Table.6 synthesized values of heat parameters
Table 6 shows that, the warmth retention property of soybean-fiber sample is similar with that of cotton sample, which is better than PAN sample but worse than wool sample. 3. Frictional, flexural and draping properties In order to test these three properties of soybean fibers, 14 fabric samples were prepared with different yarn materials and different textile structures. The parameters of these samples are listed in Table.7. Table.7 parameters of fabric samples
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