Garment fabric with high moisture absorption and sweat releasing performance and preparation method thereof

Abstract

The invention discloses a garment fabric with high moisture absorption and sweat releasing properties and a preparation method thereof, and belongs to the technical field of fabrics, the garment fabric is a double-layer fabric, the upper-layer fabric is prepared from blended yarns of polypropylene fibers and bamboo fibers, and the bottom-layer fabric is prepared from mica cool fibers; the mica cool fiber is prepared by the following steps: preparing a functional dispersion liquid from mica powder, polystyrene, lignin, an organic solvent and a dispersing agent as raw materials, blending and melting the functional dispersion liquid and a spinning melt to obtain a spinning solution, and carrying out electrospinning treatment on the spinning solution. The garment fabric has high moisture absorption and sweat releasing performance and is excellent in contact cold feeling effect, meanwhile, the fabric preparation technology is different from existing cold feeling finishing agent and moisture absorption finishing agent treatment, and the contact cold feeling and the moisture absorption and sweat releasing effect of the fabric are more durable.

Description

Technical Field

[0001] The invention relates to the technical field of fabrics, and in particular to a clothing fabric with high moisture absorption and perspiration dissipation properties and a preparation method thereof. Background Art

[0002] In the hot summer, the cooling, moisture-wicking and other functions of clothing fabrics have become basic needs of consumers.

[0003] Common improvement methods mostly start from the aspects of fiber modification, weaving structure optimization and finishing process. Among them, fiber modification refers to changing the cross-sectional shape of the fiber, such as making cross-shaped, triangular and other special-shaped cross-sectional fibers, increasing the capillary effect of the fiber and accelerating the moisture conduction and perspiration wicking speed. For example, DuPont's Coolmax fiber is made by changing the shape of the spinneret. In addition, fiber modification can also be achieved by introducing hydrophilic groups into the fiber macromolecular structure. For example, using special nano-coating technology, a hydrophilic nano-film is covered on the fiber surface to change the surface tension between the fiber and sweat, allowing sweat to spread and adsorb faster on the fiber surface. However, the coating effect gradually weakens with the use of the fabric, and its durability needs to be improved. Weaving structure optimization is mainly achieved by adopting a special weaving process to form a porous structure or a unidirectional moisture-conducting structure in the fabric, which quickly conducts sweat to the outer surface of the garment and evaporates, while preventing water from reversely penetrating. The finishing process is to specially treat the fabric with a hygroscopic finishing agent or a cooling finishing agent to achieve the cool feeling and moisture absorption and perspiration wicking properties of the fabric, but the overall durability is poor.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems of the prior art and provide a clothing fabric with high moisture absorption and perspiration dissipation and a preparation method thereof.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions: A first aspect of the present invention provides a clothing fabric with high moisture absorption and perspiration wicking properties, wherein the clothing fabric is a double-layer fabric, wherein the upper layer is made of a blended yarn of polypropylene fiber and bamboo fiber, and the bottom layer is made of mica cooling fiber; The mica cooling fiber is prepared by preparing a functional dispersion liquid using mica powder, polystyrene, lignin, an organic solvent, and a dispersant as raw materials, blending the functional dispersion liquid with a spinning melt to obtain a spinning solution, and then subjecting the spinning solution to electrospinning.

[0007] As a further technical solution of the present invention, the functional dispersion comprises, by weight, 15-20 parts of mica powder, 30-40 parts of polystyrene, 10-15 parts of lignin, 200-250 parts of organic solvent and 4-6 parts of dispersant.

[0008] As a further technical solution of the present invention, the blending mass ratio of the polypropylene fiber to the bamboo fiber is 20-40:60-80.

[0009] As a further technical solution of the present invention, the organic solvent is N,N-dimethylformamide or dimethyltetrahydrofuran, and the dispersant is stearic acid.

[0010] As a further technical solution of the present invention, the mica cooling fiber is further subjected to a gas etching treatment, wherein the treatment method is to use a mixed gas of oxygen and ammonia to perform a normal pressure low temperature plasma treatment on the mica cooling fiber.

[0011] As a further technical solution of the present invention, the volume proportion of oxygen is 40-60%, the volume proportion of ammonia is 40-60%, the oxygen flow rate is 1-10 L / min, the ammonia flow rate is 1-10 mL / min, the treatment temperature is 60-100° C., and the treatment time is 5-10 min.

[0012] As a further technical solution of the present invention, the spinning melt is a polyether-modified polyester melt or a polyamide fiber melt.

[0013] A second aspect of the present invention further provides a method for preparing a garment fabric with high moisture absorption and perspiration wicking properties as described above, comprising the following steps: (1) Dissolve polystyrene and lignin in an organic solvent, disperse them by ultrasonication to obtain a mixed solution, then add mica powder and a dispersant to the mixed solution, and disperse them by ultrasonication at room temperature to obtain a functional dispersion; (2) The functional dispersion liquid is blended with the spinning melt to obtain a spinning solution, and the spinning solution is electrospun to obtain a mica cooling fiber; (3) The blended yarn of polypropylene fiber and bamboo fiber and the mica cooling fiber are woven into an upper fabric and a bottom fabric respectively, and then connected by sewing to obtain the clothing fabric with high moisture absorption and perspiration wicking properties.

[0014] As a further technical solution of the present invention, in step (3), the fineness of the blended yarn of polypropylene fiber and bamboo fiber is 12.5-20.2 dtex, and the fineness of the mica cooling fiber is 8.5-12.5 dtex.

[0015] The beneficial effects of the present invention are: The clothing fabric provided by the present invention has a double-layer structure. The upper fabric is made of a blended yarn of polypropylene fiber and bamboo fiber, and the bottom fabric is made of mica cooling fiber. By creating a difference in hydrophilicity between the upper and bottom fabrics, the bottom fabric can quickly absorb sweat and conduct it to the upper fabric of the clothing for evaporation, thereby improving moisture absorption and perspiration wicking. At the same time, the bottom fabric that contacts the skin is made of mica cooling fiber, which can quickly conduct heat and improve the contact coolness of the fabric. At the same time, the mica cooling fiber is further etched with a mixed gas of oxygen and ammonia to roughen the fiber surface. After being woven into the base fabric, fine channels are formed between the fibers. Heat is quickly transferred within the fibers through these channels, causing the fiber surface temperature to drop faster. Different from existing treatments with cooling finishing agents and moisture-absorbing finishing agents, the fabric of the present invention has a more lasting contact cooling and moisture-absorbing and perspiration-wicking effects. DETAILED DESCRIPTION

[0016] The purpose of the present invention is to solve the problems of the prior art and provide a clothing fabric with high moisture absorption and perspiration dissipation and a preparation method thereof.

[0017] The present invention achieves the above-mentioned purpose through the following technical solutions: A first aspect of the present invention provides a clothing fabric with high moisture absorption and perspiration wicking properties, wherein the clothing fabric is a double-layer fabric, wherein the upper layer is made of a blended yarn of polypropylene fiber and bamboo fiber, and the bottom layer is made of mica cooling fiber; The mica cooling fiber is prepared by preparing a functional dispersion liquid using mica powder, polystyrene, lignin, an organic solvent, and a dispersant as raw materials, blending the functional dispersion liquid with a spinning melt to obtain a spinning solution, and then subjecting the spinning solution to electrospinning.

[0018] As a further technical solution of the present invention, the functional dispersion comprises, by weight, 15-20 parts of mica powder, 30-40 parts of polystyrene, 10-15 parts of lignin, 200-250 parts of organic solvent and 4-6 parts of dispersant.

[0019] As a further technical solution of the present invention, the blending mass ratio of the polypropylene fiber to the bamboo fiber is 20-40:60-80.

[0020] As a further technical solution of the present invention, the organic solvent is N,N-dimethylformamide or dimethyltetrahydrofuran, and the dispersant is stearic acid.

[0021] As a further technical solution of the present invention, the mica cooling fiber is further subjected to a gas etching treatment, wherein the treatment method is to use a mixed gas of oxygen and ammonia to perform a normal pressure low temperature plasma treatment on the mica cooling fiber.

[0022] As a further technical solution of the present invention, the volume proportion of oxygen is 40-60%, the volume proportion of ammonia is 40-60%, the oxygen flow rate is 1-10 L / min, the ammonia flow rate is 1-10 mL / min, the treatment temperature is 60-100° C., and the treatment time is 5-10 min.

[0023] As a further technical solution of the present invention, the spinning melt is a polyether-modified polyester melt or a polyamide fiber melt.

[0024] A second aspect of the present invention further provides a method for preparing a garment fabric with high moisture absorption and perspiration wicking properties as described above, comprising the following steps: (1) Dissolve polystyrene and lignin in an organic solvent, disperse them by ultrasonication to obtain a mixed solution, then add mica powder and a dispersant to the mixed solution, and disperse them by ultrasonication at room temperature to obtain a functional dispersion; (2) The functional dispersion liquid is blended with the spinning melt to obtain a spinning solution, and the spinning solution is electrospun to obtain a mica cooling fiber; (3) The blended yarn of polypropylene fiber and bamboo fiber and the mica cooling fiber are woven into an upper fabric and a bottom fabric respectively, and then connected by sewing to obtain the clothing fabric with high moisture absorption and perspiration wicking properties.

[0025] As a further technical solution of the present invention, in step (3), the fineness of the blended yarn of polypropylene fiber and bamboo fiber is 12.5-20.2 dtex, and the fineness of the mica cooling fiber is 8.5-12.5 dtex.

[0026] The beneficial effects of the present invention are: The clothing fabric provided by the present invention has a double-layer structure. The upper fabric is made of a blended yarn of polypropylene fiber and bamboo fiber, and the bottom fabric is made of mica cooling fiber. By creating a difference in hydrophilicity between the upper and bottom fabrics, the bottom fabric can quickly absorb sweat and conduct it to the upper fabric of the clothing for evaporation, thereby improving moisture absorption and perspiration wicking. At the same time, the bottom fabric that contacts the skin is made of mica cooling fiber, which can quickly conduct heat and improve the contact coolness of the fabric. At the same time, the mica cooling fiber is further etched with a mixed gas of oxygen and ammonia to roughen the fiber surface. After being woven into the base fabric, fine channels are formed between the fibers. Heat is quickly transferred within the fibers through these channels, causing the fiber surface temperature to drop faster. Different from existing treatments with cooling finishing agents and moisture-absorbing finishing agents, the fabric of the present invention has a more lasting contact cooling and moisture-absorbing and perspiration-wicking effects. ; As can be seen from Table 1, according to GB / T 35263-2017 "Test and evaluation of instantaneous cooling properties of textiles", when the temperature difference is 15℃, the Q-max value of the fabric reaches 0.15J / (cm 2 ·s) and above, it can be determined that it has a contact cooling effect.

[0027] Comparison of Example 1 with Comparative Example 1 shows that the use of mica cooling fibers can effectively enhance the contact cooling effect of clothing fabrics. Comparison of Example 1 with Example 4 shows that in Example 4, the mica cooling fibers are further subjected to gas etching treatment to roughen the fiber surface. After being woven into the base fabric, fine channels are formed between the fibers. Heat is rapidly transferred through these channels within the fibers, causing the fiber surface temperature to drop more rapidly, thereby enhancing the contact cooling effect of the fabric.

[0028] Comparative Examples 4 and 5 are different from Example 4. When performing gas etching treatment on the mica cooling fiber, oxygen or ammonia is used separately. As can be seen from the results in Table 1, it has a negative impact on the contact coolness of the final clothing fabric.

[0029] The garment fabric samples prepared in Examples 1-4 and Comparative Examples 1-6 were then subjected to moisture absorption and perspiration testing after 0 and 50 washes. Specifically, the wicking height of the fabric was tested in accordance with FZ / T 01071-2008, "Test Method for Capillary Effect of Textiles." A section of the sample was placed in water and the maximum wicking height after 30 minutes was measured by capillary action. Three samples were tested in each of the warp and weft directions, and the average value was calculated. The results are shown in Table 2.

[0030] Table 2 Moisture absorption and perspiration test results ; Comparison of Example 1 with Comparative Example 1 shows that the moisture absorption and perspiration wicking properties of clothing fabrics with mica cooling fibers as the bottom fabric are improved to a certain extent, but the improvement effect is not significant enough. The reason is that although the hydrophilicity of the mica cooling fibers themselves is not ideal, it can be seen from the comparison of Example 4 with Comparative Example 1 that the mica cooling fibers are further subjected to gas etching treatment, which can introduce hydrophilic groups on the fiber surface, thereby enhancing the hydrophilicity of the bottom fabric and forming a difference between the upper fabric and the bottom fabric. The bottom fabric can quickly absorb sweat and quickly discharge it with the help of the hydrophobicity of the upper fabric, so that the overall fabric obtains better moisture absorption and perspiration effect. Comparative Examples 4-5 and Example 4 show that the choice of gas during the gas etching treatment has an impact on the moisture absorption and perspiration effect of the final fabric.

[0031] In the upper fiber of Comparative Example 3, the blending mass ratio of polypropylene fiber and bamboo fiber is adjusted to 60:40. The poor hydrophilicity of polypropylene fiber makes the upper fabric more hydrophobic, which helps the bottom fabric to quickly perspire after absorbing sweat. Therefore, overall, the moisture absorption and perspiration properties of the clothing fabric of Comparative Example 3 are better than those of Examples 1-3. However, the increase in the blending amount of polypropylene fiber corresponding to the blending amount of bamboo fiber will have a certain degree of negative impact on the contact cooling effect of the clothing fabric.

[0032] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A high moisture absorption and perspiration wicking fabric for clothing, characterized in that: The clothing fabric is a double-layer fabric, the upper layer of which is made of a blended yarn of polypropylene fiber and bamboo fiber, and the bottom layer of which is made of mica cooling fiber; The mica cooling fiber is prepared by preparing a functional dispersion liquid using mica powder, polystyrene, lignin, an organic solvent, and a dispersant as raw materials, blending the functional dispersion liquid with a spinning melt to obtain a spinning solution, and then subjecting the spinning solution to electrospinning.

2. The high moisture absorption and perspiration wicking fabric for clothing according to claim 1, characterized in that: The functional dispersion comprises, by weight, 15-20 parts of mica powder, 30-40 parts of polystyrene, 10-15 parts of lignin, 200-250 parts of organic solvent and 4-6 parts of dispersant.

3. The high moisture absorption and perspiration wicking fabric for clothing according to claim 1, characterized in that: The blending mass ratio of the polypropylene fiber to the bamboo fiber is 20-40:60-80.

4. The high moisture absorption and perspiration wicking fabric for clothing according to claim 1, characterized in that: The organic solvent is N,N-dimethylformamide or dimethyltetrahydrofuran, and the dispersant is stearic acid.

5. The high moisture absorption and perspiration wicking fabric for clothing according to claim 1, characterized in that: The mica cooling fiber is further subjected to a gas etching treatment, wherein the treatment method is to use a mixed gas of oxygen and ammonia to perform a normal pressure low temperature plasma treatment on the mica cooling fiber.

6. The high moisture absorption and perspiration wicking fabric for clothing according to claim 5, characterized in that: The volume proportion of oxygen is 40-60%, the volume proportion of ammonia is 40-60%, the oxygen flow rate is 1-10 L / min, the ammonia flow rate is 1-10 mL / min, the treatment temperature is 60-100° C., and the treatment time is 5-10 min.

7. The high moisture absorption and perspiration wicking fabric for clothing according to claim 1, characterized in that: The spinning melt is a polyether modified polyester melt or a polyamide fiber melt.

8. A method for preparing a garment fabric with high moisture absorption and perspiration wicking properties according to any one of claims 1 to 7, characterized in that: The following steps are involved: (1) Dissolve polystyrene and lignin in an organic solvent, disperse them by ultrasonication to obtain a mixed solution, then add mica powder and a dispersant to the mixed solution, and disperse them by ultrasonication at room temperature to obtain a functional dispersion; (2) The functional dispersion liquid is blended with the spinning melt to obtain a spinning solution, and the spinning solution is electrospun to obtain a mica cooling fiber; (3) The blended yarn of polypropylene fiber and bamboo fiber and the mica cooling fiber are woven into an upper fabric and a bottom fabric respectively, and then connected by sewing to obtain the clothing fabric with high moisture absorption and perspiration wicking properties.

9. The method for preparing a garment fabric with high moisture absorption and perspiration wicking properties according to claim 8, wherein: In the step (3), the fineness of the blended yarn of polypropylene fiber and bamboo fiber is 12.5-20.2 dtex, and the fineness of the mica cooling fiber is 8.5-12.5 dtex.