Pure cotton one-way moisture conduction fabric and preparation method thereof
By atomizing the double-layer cotton fabric and blowing the air in a specific wind direction, the hydrophilic agent is controlled to fix the fabric layers, which solves the durability and performance problems of pure cotton one-way wet fabrics, and achieves good one-way wet effect and reproducibility.
Patent Information
- Application Number
- CN202510605665.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2025-08-15
AI Technical Summary
The existing pure cotton one-way wet fabrics have poor durability and one-way wet performance, many production processes and high costs, and the layering of hydrophobic and hydrophilic finishing agents is not obvious, which affects the single-way wet performance.
The double-layer cotton fabric is atomized by a hydrophobic finisher and a hydrophilic finisher, and blow air in a specific wind direction to fix the finisher between the fabric layers. By controlling the interface of the hydrophobic finisher, pure cotton one-way guide wet fabric is prepared.
It realizes good durability and one-way wet properties of pure cotton one-way wet fabrics, with obvious hydrophilic and sexual interfacial interfaces, good reproducibility, and controllable one-way wet properties.
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of functional fabrics, and in particular to a pure cotton one-way moisture-conducting fabric and a preparation method thereof. Background Art
[0002] Unidirectional moisture-conducting fabrics are textiles with specialized properties that allow perspiration and other liquids to flow in a specific direction, rapidly transferring from one side of the fabric to the other without reverse osmosis. This keeps the skin dry and comfortable. Furthermore, as perspiration rapidly evaporates from the skin's surface, it removes a significant amount of heat, lowering the body's surface temperature and keeping it relatively cool during exercise or in high-temperature environments. In cold environments, if a person sweats, unidirectional moisture-conducting fabrics can quickly remove the sweat, preventing it from freezing on the surface and reducing heat loss, thus providing a certain degree of warmth. Furthermore, because unidirectional moisture-conducting fabrics allow perspiration to quickly escape and evaporate, they reduce the amount of time it remains on the fabric. The dry environment created by unidirectional moisture-conducting fabrics is also less conducive to bacterial growth, thus providing a certain degree of antibacterial and deodorizing properties.
[0003] Currently, fabrics can be made unidirectional through specialized spinning processes, whereby the fiber surface is given different microstructures. For example, some fibers have grooves or micropores on their surfaces. When sweat contacts the fabric, these grooves or micropores draw the sweat from one side of the fabric to the other through a capillary effect. Due to the different physical structures on the two sides of the fiber, this capillary effect is more pronounced in one direction, thus achieving unidirectional moisture conduction. Unidirectional moisture conduction can also be achieved by varying the chemical properties of the fibers, using fibers with different chemical properties or applying different chemical treatments to the two sides of the fabric. For example, one side of the fabric can be treated to be hydrophilic and the other to be hydrophobic. When sweat contacts the hydrophilic side, the hydrophilic groups allow it to be quickly absorbed and spread. The hydrophobic side, on the other hand, prevents the sweat from flowing in the opposite direction, forcing the sweat to flow only toward the hydrophobic side, thus achieving unidirectional moisture conduction.
[0004] Because the process for achieving unidirectional moisture conduction by exploiting differences in fiber chemical properties is simple, most existing unidirectional moisture conduction fabrics are manufactured using this process. For example, a polyester-cotton knitted fabric utilizes the hydrophobic properties of polyester and the hydrophilicity of cotton fibers to conduct sweat vapor and perspiration through the inner polyester layer to the outer cotton layer, effectively achieving unidirectional moisture conduction. However, pure cotton unidirectional moisture conduction fabrics require hydrophobic finishing of the cotton yarn before weaving it with either untreated or hydrophilic treated cotton yarn to create a unidirectional moisture conduction fabric with the hydrophobic cotton yarn as the inner layer and the hydrophilic cotton yarn as the outer layer. However, the production of pure cotton unidirectional moisture conduction fabrics that require yarn finishing before weaving involves multiple production steps, high material loss, and high production costs. The unidirectional moisture conduction function of pure cotton knitted fabrics can be enhanced by printing a hydrophobic finish on one side of the knitted cotton fabric and then applying the hydrophilic finish throughout the entire fabric through padding. Because hydrophobic finishing agents are applied to the fabric surface through printing and cannot penetrate the cotton fibers, the low hydrophobic content results in a less durable washability. Meanwhile, hydrophilic finishing agents, applied through padding throughout the knitted fabric, lack distinct hydrophobic and hydrophilic stratification, affecting its unidirectional moisture conduction properties. Summary of the Invention
[0005] The purpose of the present invention is to overcome the problems of poor unidirectional moisture conduction durability and poor unidirectional moisture conduction performance of pure cotton fabrics in the prior art, and to provide a method for preparing pure cotton unidirectional moisture conduction fabrics. The pure cotton unidirectional moisture conduction fabrics prepared by this method can have both good durability and unidirectional moisture conduction performance. At the same time, the preparation process is simple, the prepared pure cotton unidirectional moisture conduction fabrics have good reproducibility, and their unidirectional moisture conduction performance is controllable.
[0006] In order to achieve the above object, the present invention provides a method for preparing a pure cotton one-way moisture-conducting fabric, characterized in that the method comprises the following steps:
[0007] (1) Weaving double-layer cotton fabrics made of raw cotton yarn and covered cotton yarn;
[0008] (2) atomizing the cotton yarn layer of the double-layer cotton fabric with an aqueous solution of a hydrophobic finishing agent, blowing air onto the double-layer cotton fabric in a wind direction from the raw cotton yarn layer to the cotton yarn layer, and then baking, scouring, and bleaching the double-layer cotton fabric;
[0009] (3) A hydrophilic finishing agent aqueous solution is used to perform secondary atomization on the raw cotton yarn layer of the double-layer cotton fabric obtained in step (2), and at the same time, the double-layer cotton fabric is blown twice in a wind direction from the cotton yarn layer to the raw cotton yarn layer, and then the double-layer cotton fabric is baked twice.
[0010] Preferably, in step (2), the concentration of the aqueous solution of the hydrophobic finishing agent is 5-15 g / L.
[0011] Preferably, in step (2), after one atomization, the liquid carrying rate of the double-layer cotton fabric is 40-80%.
[0012] Preferably, in step (2), the wind speed of the blowing is 3-8 m / s.
[0013] Preferably, in step (2), the conditions for the primary baking include: a temperature of 140-180° C. and a time of 2-15 min.
[0014] Preferably, in step (3), the concentration of the hydrophilic finishing agent aqueous solution is 20-50 g / L.
[0015] Preferably, in step (3), after the secondary atomization, the liquid carrying rate of the double-layer cotton fabric is 40-80%.
[0016] Preferably, in step (3), the wind speed of the secondary blowing is 3-8 m / s.
[0017] Preferably, in step (3), the conditions for the secondary baking include: a temperature of 140-180° C. and a time of 2-15 min.
[0018] The second aspect of the present invention provides a pure cotton one-way moisture-conducting fabric prepared by the above method.
[0019] The pure cotton unidirectional moisture-conducting fabric prepared by the method described in the present invention has good unidirectional moisture-conducting function and durability, and at the same time has good reproducibility, can well control the interface between the hydrophilic layer and the hydrophobic layer, and will not cause unclear stratification of the hydrophobic layer and the hydrophilic layer or be unable to control the degree of hydrophobic and hydrophilic permeability. This is mainly because the present invention controls the adsorption of the hydrophobic finishing agent and the hydrophilic finishing agent through the stratification of the fabric itself, can well control the adsorption degree of the two, thereby making the stratification of the hydrophobic layer and the hydrophilic layer obvious, and at the same time the method can achieve reproducibility. DETAILED DESCRIPTION
[0020] The following is a detailed description of the specific embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.
[0021] The endpoints of the ranges and any values disclosed herein are not limited to the precise ranges or values, and these ranges or values should be understood to include values close to these ranges or values. For numerical ranges, the endpoints of each range, the endpoints of each range and individual point values, and the individual point values can be combined with each other to obtain one or more new numerical ranges, which should be considered to be specifically disclosed herein.
[0022] In one aspect, the present invention provides a method for preparing a pure cotton one-way moisture-conducting fabric, characterized in that the method comprises the following steps:
[0023] (1) Weaving double-layer cotton fabrics made of raw cotton yarn and covered cotton yarn;
[0024] (2) atomizing the cotton yarn layer of the double-layer cotton fabric with an aqueous solution of a hydrophobic finishing agent, blowing air onto the double-layer cotton fabric in a wind direction from the raw cotton yarn layer to the cotton yarn layer, and then baking, scouring, and bleaching the double-layer cotton fabric;
[0025] (3) A hydrophilic finishing agent aqueous solution is used to perform secondary atomization on the raw cotton yarn layer of the double-layer cotton fabric obtained in step (2), and at the same time, the double-layer cotton fabric is blown twice in a wind direction from the cotton yarn layer to the raw cotton yarn layer, and then the double-layer cotton fabric is baked twice.
[0026] In the present invention, the "cotton yarn" refers to "cotton yarn that has been scour and bleached" and has good water absorption performance.
[0027] In the present invention, the "raw cotton yarn" refers to "cotton yarn that has not been scoured or bleached", which has wax and oil stains on its surface and poor water absorption performance.
[0028] In the method of the present invention, in step (1), raw cotton yarn and cotton yarn are used to weave a double-layer cotton fabric of raw cotton yarn covered with cotton yarn, the raw cotton yarn layer has poor water absorption performance and the cotton yarn layer has good water absorption performance; in step (2), the double-layer cotton fabric is placed horizontally, at this time, the cotton yarn layer is on the top, and the cotton yarn layer of the double-layer cotton fabric is atomized once using an aqueous solution of a hydrophobic finishing agent, and the atomizing nozzle is above the cotton yarn layer, so that the hydrophobic finishing agent is adsorbed onto the cotton yarn layer, and the raw cotton yarn layer has poor water absorption performance due to wax and oil on its surface. The method comprises the steps of: having no adsorption effect on the hydrophobic finishing agent; blowing the double-layer cotton fabric once in a wind direction from the raw cotton yarn layer to the cotton yarn layer so that the hydrophobic finishing agent is not easy to penetrate into the raw cotton yarn layer and remains in the cotton yarn layer; then baking the double-layer cotton fabric once so that the hydrophobic finishing agent is firmly fixed to the cotton yarn layer, thereby making the cotton yarn layer of the double-layer cotton fabric have good hydrophobic properties; then scouring and bleaching the fabric to remove wax and oil stains on the raw cotton in the raw cotton yarn layer of the double-layer cotton fabric, thereby making the fabric have good water absorption properties; In step (3), the hydrophilic finishing agent aqueous solution is used to perform secondary atomization on the raw cotton yarn layer of the double-layer cotton fabric finally obtained in step (2). At this time, the raw cotton yarn layer is on top, and the atomizing nozzle is above the raw cotton yarn layer, so that the hydrophilic finishing agent is adsorbed onto the raw cotton yarn layer. At this time, the cotton yarn layer of the double-layer cotton fabric has good hydrophobic properties, so the hydrophilic finishing agent is hardly adsorbed by the cotton yarn layer of the double-layer cotton fabric. At the same time, the double-layer cotton fabric is blown twice in the wind direction from the cotton yarn layer to the raw cotton yarn layer, so that the hydrophilic finishing agent does not penetrate The hydrophilic finishing agent is firmly fixed to the raw cotton yarn layer, thereby making the raw cotton yarn layer of the double-layer cotton fabric have good hydrophilic properties. Based on this, since the double-layer cotton fabric is obviously layered, its hydrophilic and hydrophobic interfaces are obvious, and the reproducibility of unidirectional moisture conduction is good, which will not lead to the degree of uncontrollable penetration of the hydrophilic and hydrophobic finishing agents, nor will it cause the hydrophilic and hydrophobic finishing agents to penetrate each other and cause the unidirectional moisture conduction performance to be greatly reduced, and the overall unidirectional moisture conduction durability is also greatly improved.
[0029] In a preferred embodiment, the weight ratio of the raw cotton yarn to the cotton yarn in the double-layer cotton fabric is 1:0.5-3, preferably 1:1-2.
[0030] In the method described in the present invention, there are no special requirements for the hydrophobic finishing agent, and any conventionally applicable one in the art can be used. In a preferred embodiment, the hydrophobic finishing agent can be one or more of WF-212 hydrophobic finishing agent, WF-213 hydrophobic finishing agent, and WF-214 hydrophobic finishing agent.
[0031] In the method described in the present invention, there are no special requirements for the hydrophilic finishing agent, and any conventionally applicable agent in the field can be used; in a preferred embodiment, the hydrophilic finishing agent can be one or more of HPN15 hydrophilic finishing agent, HPN16 hydrophilic finishing agent and HPN20 hydrophilic finishing agent.
[0032] In a preferred embodiment, in order to improve the hydrophobic properties of the cotton yarn layer of the double-layer cotton fabric, in step (2), the concentration of the hydrophobic finishing agent aqueous solution is 5-15 g / L; specifically, the concentration of the hydrophobic finishing agent aqueous solution can be 5 g / L, 6 g / L, 8 g / L, 10 g / L, 12 g / L or 15 g / L.
[0033] In a preferred embodiment, in order to further improve the hydrophobicity of the cotton yarn layer of the double-layer cotton fabric, in step (2), after one atomization, the liquid carrying rate of the double-layer cotton fabric is 40-80%; specifically, the liquid carrying rate of the double-layer cotton fabric can be 40%, 50%, 60%, 70% or 80%.
[0034] In a preferred embodiment, in order to prevent the raw cotton yarn layer of the double-layer cotton fabric from absorbing the hydrophobic finishing agent, in step (2), the wind speed of the blowing is 3-8 m / s.
[0035] In a preferred embodiment, in order to improve the durability of the hydrophobic performance of the cotton yarn layer of the double-layer cotton fabric, in step (2), the conditions for the single baking include: a temperature of 140-180° C. and a time of 2-15 minutes.
[0036] In a preferred embodiment, step (2) further comprises baking the double-layer cotton fabric after scouring and bleaching.
[0037] In a preferred embodiment, in order to improve the hydrophilic properties of the raw cotton yarn layer of the double-layer cotton fabric, in step (3), the concentration of the hydrophilic finishing agent aqueous solution is 20-50 g / L; specifically, the concentration of the hydrophilic finishing agent can be 20 g / L, 30 g / L, 40 g / L or 50 g / L.
[0038] In a preferred embodiment, in order to further improve the hydrophilic properties of the raw cotton yarn layer of the double-layer cotton fabric, in step (3), after the secondary atomization, the liquid carrying rate of the double-layer cotton fabric is 40-80%; specifically, the liquid carrying rate of the double-layer cotton fabric can be 40%, 50%, 60%, 70% or 80%.
[0039] In a preferred embodiment, in order to prevent the cotton yarn layer of the double-layer cotton fabric from absorbing the hydrophilic finishing agent, in step (3), the wind speed of the secondary blowing is 3-8 m / s.
[0040] In a preferred embodiment, in order to improve the durability of the hydrophilic properties of the raw cotton yarn layer of the double-layer cotton fabric, in step (3), the conditions for the secondary baking include: a temperature of 140-180° C. and a time of 2-15 minutes.
[0041] The second aspect of the present invention provides a pure cotton one-way moisture-conducting fabric prepared by the above method.
[0042] The pure cotton unidirectional moisture-conducting fabric prepared by the above method has a distinct hydrophilic and hydrophobic interface and good unidirectional moisture-conducting function, and at the same time has good reproducibility and durability.
[0043] The following examples further illustrate the pure cotton one-way moisture-conducting fabric and its preparation method of the present invention. The examples are implemented based on the technical solution of the present invention, and provide detailed implementation methods and specific operating processes, but the scope of protection of the present invention is not limited to the following examples.
[0044] The experimental methods in the following examples, unless otherwise specified, are all conventional methods in the art. The experimental materials used in the following examples, unless otherwise specified, are all commercially available.
[0045] Example 1
[0046] (1) Weaving a double-layer cotton fabric with raw cotton yarn covered with cotton yarn in a weight ratio of 1:1;
[0047] (2) using a 6 g / L aqueous solution of a WF-212 hydrophobic finishing agent to atomize the cotton yarn layer of the double-layer cotton fabric, so that the liquid carrying rate of the double-layer cotton fabric after the atomization is 50%, and simultaneously blowing the double-layer cotton fabric in a wind direction from the original cotton yarn layer to the cotton yarn layer, the wind speed of the blowing is 4 m / s, and then baking the double-layer cotton fabric at a temperature of 150° C. for 5 minutes, and then scouring and bleaching the double-layer cotton fabric, and then drying;
[0048] (3) The raw cotton yarn layer of the double-layer cotton fabric obtained in step (2) is subjected to secondary atomization using an aqueous solution of HPN15 hydrophilic finishing agent having a concentration of 30 g / L, so that the liquid carrying rate of the double-layer cotton fabric after the secondary atomization is 50%, and the double-layer cotton fabric is subjected to secondary blowing in a wind direction from the cotton yarn layer to the raw cotton yarn layer, the wind speed of the secondary blowing being 4 m / s, and then the double-layer cotton fabric is subjected to secondary baking at a temperature of 150° C. for 5 min.
[0049] Example 2
[0050] (1) Weaving a double-layer cotton fabric with raw cotton yarn covered with cotton yarn in a weight ratio of 1:1;
[0051] (2) using a 4 g / L aqueous solution of a WF-212 hydrophobic finishing agent to atomize the cotton yarn layer of the double-layer cotton fabric, so that the liquid carrying rate of the double-layer cotton fabric after the atomization is 50%, and simultaneously blowing the double-layer cotton fabric in a wind direction from the original cotton yarn layer to the cotton yarn layer, the wind speed of the blowing is 4 m / s, and then baking the double-layer cotton fabric at a temperature of 150° C. for 5 minutes, and then scouring and bleaching the double-layer cotton fabric, and then drying;
[0052] (3) The raw cotton yarn layer of the double-layer cotton fabric obtained in step (2) is subjected to secondary atomization using an aqueous solution of HPN15 hydrophilic finishing agent with a concentration of 15 g / L, so that the liquid carrying rate of the double-layer cotton fabric after the secondary atomization is 50%, and the double-layer cotton fabric is subjected to secondary blowing in a wind direction from the cotton yarn layer to the raw cotton yarn layer, the wind speed of the secondary blowing is 4 m / s, and then the double-layer cotton fabric is subjected to secondary baking at a temperature of 150° C. for 5 min.
[0053] Example 3
[0054] (1) Weaving a double-layer cotton fabric with raw cotton yarn covered with cotton yarn in a weight ratio of 1:1;
[0055] (2) using a 6 g / L aqueous solution of a WF-212 hydrophobic finishing agent to atomize the cotton yarn layer of the double-layer cotton fabric, so that the liquid carrying rate of the double-layer cotton fabric after the atomization is 50%, and blowing the double-layer cotton fabric once in a wind direction from the original cotton yarn layer to the cotton yarn layer, the wind speed of the blowing is 1 m / s, and then baking the double-layer cotton fabric at a temperature of 150° C. for 5 minutes, and then scouring and bleaching the double-layer cotton fabric, and then drying;
[0056] (3) The raw cotton yarn layer of the double-layer cotton fabric obtained in step (2) is subjected to secondary atomization using an aqueous solution of HPN15 hydrophilic finishing agent with a concentration of 30 g / L, so that the liquid carrying rate of the double-layer cotton fabric after the secondary atomization is 50%, and the double-layer cotton fabric is subjected to secondary blowing in a wind direction from the cotton yarn layer to the raw cotton yarn layer, the wind speed of the secondary blowing is 1 m / s, and then the double-layer cotton fabric is subjected to secondary baking at a temperature of 150° C. for 5 min.
[0057] Example 4
[0058] (1) Weaving a double-layer cotton fabric with raw cotton yarn covered with cotton yarn in a weight ratio of 1:1;
[0059] (2) using a 6 g / L aqueous solution of a WF-212 hydrophobic finishing agent to atomize the cotton yarn layer of the double-layer cotton fabric, so that the liquid carrying rate of the double-layer cotton fabric after the atomization is 30%, and blowing the double-layer cotton fabric once in a wind direction from the original cotton yarn layer to the cotton yarn layer, the wind speed of the blowing is 4 m / s, and then baking the double-layer cotton fabric at a temperature of 150° C. for 5 minutes, and then scouring and bleaching the double-layer cotton fabric, and then drying;
[0060] (3) The raw cotton yarn layer of the double-layer cotton fabric obtained in step (2) is subjected to secondary atomization using an aqueous solution of HPN15 hydrophilic finishing agent with a concentration of 30 g / L, so that the liquid carrying rate of the double-layer cotton fabric after the secondary atomization is 30%, and the double-layer cotton fabric is subjected to secondary blowing in a wind direction from the cotton yarn layer to the raw cotton yarn layer, the wind speed of the secondary blowing is 4 m / s, and then the double-layer cotton fabric is subjected to secondary baking at a temperature of 150° C. for 5 min.
[0061] Comparative Example 1
[0062] (1) Weaving a double-layer cotton fabric with raw cotton yarn covered with cotton yarn in a weight ratio of 1:1;
[0063] (2) using a 6 g / L aqueous solution of a WF-212 hydrophobic finishing agent to atomize the cotton yarn layer of the double-layer cotton fabric, so that the liquid carrying rate of the double-layer cotton fabric after the atomization is 50%, then baking the double-layer cotton fabric at a temperature of 150° C. for 5 minutes, and then scouring and bleaching the double-layer cotton fabric, and then drying;
[0064] (3) The raw cotton yarn layer of the double-layer cotton fabric obtained in step (2) was subjected to secondary atomization using an aqueous solution of HPN15 hydrophilic finishing agent with a concentration of 30 g / L, so that the liquid carrying rate of the double-layer cotton fabric after the secondary atomization was 50%, and then the double-layer cotton fabric was subjected to secondary baking at a temperature of 150° C. for 5 min.
[0065] Comparative Example 2
[0066] (1) Weaving a double-layer cotton fabric with raw cotton yarn covered with cotton yarn in a weight ratio of 1:1;
[0067] (2) using a 30 g / L HPN15 hydrophilic finishing agent aqueous solution to atomize the cotton yarn layer of the double-layer cotton fabric, so that the liquid carrying rate of the double-layer cotton fabric after the atomization is 50%, and simultaneously blowing the double-layer cotton fabric in a wind direction from the original cotton yarn layer to the cotton yarn layer, the wind speed of the blowing is 4 m / s, and then baking the double-layer cotton fabric at a temperature of 150° C. for 5 minutes, and then scouring and bleaching the double-layer cotton fabric, and then drying;
[0068] (3) The raw cotton yarn layer of the double-layer cotton fabric obtained in step (2) is subjected to secondary atomization using a WF-212 hydrophobic finishing agent aqueous solution with a concentration of 6 g / L, so that the liquid carrying rate of the double-layer cotton fabric after the secondary atomization is 50%, and at the same time, the double-layer cotton fabric is subjected to secondary blowing in a wind direction from the cotton yarn layer to the raw cotton yarn layer, and the wind speed of the secondary blowing is 4 m / s, and then the double-layer cotton fabric is subjected to secondary baking at a temperature of 150° C. for 5 min.
[0069] Test Case
[0070] (1) The unidirectional moisture conduction performance of the pure cotton unidirectional moisture conduction fabrics finally prepared in the embodiment and the comparative example was tested, and the unidirectional moisture conduction performance (comprehensive dynamic transport performance of liquid water (OMMC)) was rated according to the test standard AATCC195-2012. The test results are shown in Table 1;
[0071] (2) The durability and reproducibility of the unidirectional moisture conduction of the pure cotton unidirectional moisture conduction fabric prepared in Example 1 were tested. The results showed that after 5 washes, the level of its unidirectional moisture conduction performance was still level 5, and its durability was good; after 5 preparations in the same way, the level of its unidirectional moisture conduction performance was still level 5, indicating that the method described in the present invention has good reproducibility.
[0072] Table 1
[0073] serial number One-way moisture conduction performance (level) Example 1 5 Example 2 4 Example 3 4 Example 4 4 Comparative Example 1 2 Comparative Example 2 1
[0074] It can be seen from the results in Table 1 that the unidirectional moisture conduction performance of the pure cotton unidirectional moisture conduction fabrics prepared by the method described in the present invention is above level 4 and has good reproducibility, that is, the pure cotton unidirectional moisture conduction fabrics are repeatedly prepared by the method described in the present invention. Under preferred circumstances, the level of their unidirectional moisture conduction performance can be stably maintained at level 5.
[0075] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. Within the technical concept of the present invention, various simple variations of the technical solution of the present invention may be made, including combining the various technical features in any other appropriate manner. These simple variations and combinations should also be regarded as disclosed in the present invention and fall within the scope of protection of the present invention.
Claims
1. A method for preparing a pure cotton one-way moisture-conducting fabric, characterized in that: The method comprises the following steps: (1) Weaving double-layer cotton fabrics made of raw cotton yarn and covered cotton yarn; (2) atomizing the cotton yarn layer of the double-layer cotton fabric with an aqueous solution of a hydrophobic finishing agent, blowing air onto the double-layer cotton fabric in a wind direction from the raw cotton yarn layer to the cotton yarn layer, and then baking, scouring, and bleaching the double-layer cotton fabric; (3) A hydrophilic finishing agent aqueous solution is used to perform secondary atomization on the raw cotton yarn layer of the double-layer cotton fabric obtained in step (2), and at the same time, the double-layer cotton fabric is blown twice in a wind direction from the cotton yarn layer to the raw cotton yarn layer, and then the double-layer cotton fabric is baked twice.
2. The preparation method according to claim 1, characterized in that In step (2), the concentration of the hydrophobic finishing agent aqueous solution is 5-15 g / L.
3. The preparation method according to claim 1 or 2, characterized in that In step (2), after one atomization, the liquid carrying rate of the double-layer cotton fabric is 40-80%.
4. The preparation method according to claim 3, characterized in that In step (2), the wind speed of the blowing is 3-8 m / s.
5. The preparation method according to claim 1 or 4, characterized in that In step (2), the conditions for the primary baking include: a temperature of 140-180° C. and a time of 2-15 minutes.
6. The preparation method according to claim 5, characterized in that In step (3), the concentration of the hydrophilic finishing agent aqueous solution is 20-50 g / L.
7. The preparation method according to claim 1 or 2, characterized in that In step (3), after the secondary atomization, the liquid carrying rate of the double-layer cotton fabric is 40-80%.
8. The preparation method according to claim 3, characterized in that In step (3), the wind speed of the secondary blowing is 3-8 m / s.
9. The preparation method according to claim 1 or 4, characterized in that In step (3), the conditions for the secondary baking include: a temperature of 140-180° C. and a time of 2-15 minutes.
10. A pure cotton one-way moisture-conducting fabric prepared by the method according to any one of claims 1 to 9.