One-way moisture-conducting woven jean fabric and processing method

Abstract

The invention relates to the technical field of jean fabrics, and particularly discloses a one-way moisture-conducting woven jean fabric and a processing method. The processing method of the one-way moisture-conducting tatting jean fabric comprises the following operation steps: S1, carrying out hydrophilic treatment, mangling and dyeing, washing and drying, and sizing on warp yarns to obtain a warp yarn beam; s2, integrating the cheese into bundles, winding the bundles on a ball shaft, placing the bundles on a bundle dyeing machine, conveying the cheese, sequentially carrying out hydrophilic treatment, primary drying treatment, waterproof treatment and secondary drying treatment, and reversing the cheese into cheese to obtain waterproof weft yarns; s3, the warp beam, the conventional weft and the waterproof weft are interwoven into gray fabric, the conventional weft and the waterproof weft are interwoven in proportion, singeing, cross-linking treatment, desizing and preshrinking are conducted, and the one-way moisture-conducting woven jean fabric is obtained. The woven jean fabric obtained by the application has the one-way moisture conductivity index of 562, the one-way moisture conductivity effect of the jean fabric is improved, the one-way moisture conductivity index is up to 182 after the jean fabric is washed for 20 times at home, and the one-way moisture conductivity is relatively durable.

Description

Technical Field

[0001] This application relates to the field of denim fabric technology, and more specifically, to a unidirectional wet-woven denim fabric and a processing method thereof. Background Technology

[0002] Denim fabric is widely used in the clothing industry due to its wear-resistant and durable properties. Traditional denim fabric is mostly made of pure cotton warp yarns and natural cotton yarns, which can easily cause sweat to remain on the inner surface of the fabric, creating a sticky feeling. This discomfort is especially prominent in outdoor sports and high-temperature work scenarios.

[0003] In related technologies, yarns are treated with waterproofing to achieve a one-way moisture-wicking effect. However, traditional yarn waterproofing treatment involves soaking the yarn cones and then directly cross-linking them. The inner layer of the yarn cones absorbs relatively little waterproofing agent, while the outer layer absorbs more. As a result, the waterproofing effect is unstable after the fabric is woven. In addition, the cross-linking effect on the yarn cones makes the yarn stiffer, resulting in low weaving efficiency and many quality problems.

[0004] Therefore, how to integrate durable and stable one-way moisture-wicking function into woven denim fabrics while retaining their traditional style and durability has become an urgent technical problem to be solved. Summary of the Invention

[0005] In order to enable woven denim fabric to have a durable and stable one-way moisture-wicking effect while retaining its traditional style and durability, this application provides a one-way moisture-wicking woven denim fabric and a processing method.

[0006] In a first aspect, this application provides a method for processing unidirectional wet-wet woven denim fabric, which adopts the following technical solution: A method for processing unidirectional wet-wet woven denim fabric includes the following steps: S1. The warp yarns are hydrophilically treated, rolled dry and dyed, washed and dried, sized, and the warp yarn warp beam is obtained. S2. The yarn packages are bundled together, wound onto a ball shaft, and placed on a yarn dyeing machine to be fed through a series of processes including hydrophilic treatment, primary drying, waterproofing treatment, and secondary drying, which are then reversed to form a packaged yarn to obtain waterproof weft yarn. S3. The warp yarns are interwoven with regular weft yarns and waterproof weft yarns to form a greige fabric. The regular weft yarns and waterproof weft yarns are interwoven in proportion, singeed, cross-linked, desized, and pre-shrinked to obtain a unidirectional wet-wet woven denim fabric.

[0007] In step S3, the ratio of conventional weft yarn to waterproof weft yarn is 1:(1-3) or (2-3):1.

[0008] By adopting the above technical solution, the hydrophilic treatment, drying treatment, waterproofing treatment, and drying treatment of the weft yarn are completed directly on the dyeing machine, achieving continuous production. Then, the warp yarns are interwoven with the waterproof weft yarns and regular weft yarns to form the greige fabric, thereby achieving the purpose of one-way moisture wicking in the fabric. The greige fabric is cross-linked to avoid the decrease in weft yarn flexibility and quality problems such as denim fabric caused by direct cross-linking treatment of the weft yarns.

[0009] Traditional weft waterproofing typically involves directly cross-linking the yarn after soaking it in water. This results in less waterproofing agent being absorbed by the inner layer of the yarn and more by the outer layer, leading to inconsistent waterproofing performance. Furthermore, direct cross-linking of the yarn causes stiffness, low weaving efficiency, and numerous quality problems. In contrast, this application performs the weft waterproofing treatment directly on a dyeing machine, enabling continuous production and ensuring uniform and consistent waterproofing, thus improving the stability of the waterproofing effect in denim fabric. Moreover, this application avoids cross-linking the waterproof weft yarn itself; instead, the fabric is baked, cross-linked, and thoroughly desized in a setting machine after it has been finished. This achieves a waterproof back and hydrophilic front for the denim fabric while maintaining a certain degree of flexibility in the weft yarn. This avoids the adverse effects on weaving efficiency and quality caused by direct weft cross-linking, preserving its traditional style and durability.

[0010] In addition, this application performs a hydrophilic treatment before waterproofing to remove impurities such as cotton wax, pectin, nitrogen-containing substances, and pigments from the cotton yarn, giving the cotton yarn good water absorption and uniformity, which is beneficial for subsequent waterproofing treatment. This eliminates hydrophobic impurities on the surface, improves the hydrophilicity of the weft yarn, and allows water molecules to quickly wet and penetrate into the gaps between the yarns and the interior of the fibers, ensuring effective adhesion of the waterproofing agent and improving the wettability of the weft yarn. This also improves the uniformity of the distribution of the waterproofing compound treatment agent on the weft yarn, forming a continuous and complete waterproof film, avoiding "local waterproofing failure", thereby enabling the woven denim fabric to integrate a long-lasting and stable one-way moisture-wicking effect.

[0011] Preferably, the conveying speed of the conveying bobbin yarn undergoing hydrophilic treatment, primary drying treatment, waterproofing treatment, and secondary drying treatment is 15-35 m / min.

[0012] By adopting the above technical solution, the conveying speed of hydrophilic treatment, primary drying treatment, waterproof treatment, and secondary drying treatment is controlled at 15-35m / min to ensure the treatment effect of hydrophilic and waterproof treatment of weft yarn and to ensure the uniformity of treatment of inner and outer layers of weft yarn.

[0013] In addition, the conveying speed is also related to the breakage rate of the yarn package. If the conveying speed is too fast, the friction or tension of the yarn package will increase, which may cause the yarn to be pulled or broken, or the yarn package to become loose. If the conveying speed is too slow, the yarn package will stay in each processing area for too long. Due to prolonged immersion in liquid or mechanical pressure, the yarn package is prone to swelling and deformation or fiber embrittlement. The appropriate conveying speed can avoid damage or deformation of the yarn package, so that the woven denim fabric can have a long-lasting and stable one-way moisture-wicking effect while retaining its traditional style and durability.

[0014] Preferably, the hydrophilic treatment in steps S1 and S2 is the same, specifically: adding a hydrophilic compound treatment agent to the corresponding tank of the dyeing machine, performing hydrophilic treatment at a temperature of 95-100℃, and then washing with water.

[0015] The hydrophilic compound treatment agent includes the following raw materials: sodium hydroxide 10-20g / L and penetrant 2-8g / L.

[0016] By adopting the above technical solution, sodium hydroxide, as a strong alkali, can undergo a saponification reaction with oils to generate soluble sodium fatty acids and glycerol, which transforms the originally hydrophobic oils into hydrophilic substances that dissolve in water and are thus removed. It can also hydrolyze pectin and nitrogen-containing substances. Sodium hydroxide can cause the weft yarn to swell, loosen the internal structure of the fiber, and increase the gaps, which not only makes it easier for impurities to detach from the inside of the fiber, but also makes it easier for the penetrant to penetrate, thus improving the efficiency of hydrophilic treatment.

[0017] Penetrants can reduce the surface tension of water and the interfacial tension between the fabric and water, making it easier for water to spread on the fabric surface and quickly penetrate into the fiber interior and yarn gaps through the capillary action of the fibers. This allows sodium hydroxide and other substances to fully contact and act on impurities, avoiding uneven treatment caused by insufficient local reagents.

[0018] The subsequent washing process involves first washing at 90℃ in two water tanks, followed by washing at room temperature (23-40℃) in two water tanks to thoroughly remove natural impurities such as wax, pectin, and nitrogenous substances, thus achieving a hydrophilic effect.

[0019] As a preferred option: the waterproofing treatment in step S2 specifically involves: sequentially adding the waterproofing compound treatment agent into the corresponding tank of the dyeing machine, adjusting the pH value, and treating for 17-40 seconds; The waterproof compound treatment agent includes the following raw materials: waterproofing agent 30-100g / L, crosslinking agent 5-15g / L, and penetrant 5g / L.

[0020] By adopting the above technical solution, adjusting the pH value after adding the waterproof compound treatment agent during the waterproofing process can prevent the waterproofing agent, crosslinking agent, and penetrant from decomposing, precipitating, or losing their reactivity, thereby improving the waterproofing effect and promoting the uniform dispersion of the waterproofing agent, crosslinking agent, and penetrant in water.

[0021] The waterproofing agent in the waterproof compound treatment works by forming a low surface energy layer on the fiber surface, preventing moisture from wetting the fiber and achieving a waterproof effect. The cross-linking agent can "anchor" the originally physically attached waterproof molecules to the fiber surface, helping to improve the durability of the waterproof effect. The penetrating agent promotes the uniform penetration of the waterproofing agent and cross-linking agent, enhancing the waterproof effect.

[0022] Preferably, after the waterproofing treatment in step S2, the roll-off rate is controlled at 60-75%.

[0023] By adopting the above technical solution, after waterproofing treatment, the residual rate is controlled at 60-75%, ensuring that the weft yarn absorbs a sufficient amount of waterproof compound treatment agent, so that a continuous and complete waterproof membrane is formed on the surface of the weft yarn and in the gaps inside the yarn, thereby improving the waterproofing effect.

[0024] Preferably, the pH value is adjusted to 4-5.

[0025] By adopting the above technical solution, the activity of the waterproofing agent depends on weakly acidic conditions, which ensures the stability of the waterproofing agent. A suitable pH value can also avoid damage to the weft yarn, thus ensuring the quality of the weft yarn while guaranteeing the waterproofing effect.

[0026] As a preferred embodiment, the crosslinking treatment in step S3 specifically involves using a crosslinking baking method, with a crosslinking temperature of 130-180℃ and a crosslinking time of 1-3 minutes.

[0027] By employing the above technical solution, the fabric is cross-linked using a cross-linking baking method. At 130-180℃, the active groups in the waterproofing agent are activated, causing the waterproofing agent to form covalent bonds with fiber molecules, creating a three-dimensional network structure of a "waterproof membrane" that is firmly anchored to the fiber surface, improving the durability of weft waterproofing. Cross-linking also tightly connects the waterproofing agent molecules, reducing micropores and cracks in the membrane layer, decreasing the possibility of moisture penetration through capillary action. The increased fluidity of the waterproofing agent molecules on the fiber surface allows it to fill in localized weak areas, preventing uneven membrane thickness and improving the uniformity of the waterproofing agent in the weft yarn, further enhancing the waterproofing effect and temperature and weather resistance.

[0028] Secondly, this application provides a unidirectional wet-woven denim fabric processed by any one of the processing methods described in 1-7.

[0029] In summary, this application includes at least one of the following beneficial technical effects: (1) This application performs hydrophilic treatment, primary drying treatment, waterproof treatment, and secondary drying treatment on the conveying yarn in sequence, and controls the conveying speed to 15-35m / min, so that the unidirectional moisture wicking index of the woven denim fabric is 521-530. After 20 household washes, the unidirectional moisture wicking index is 132-139, which improves the unidirectional moisture wicking index and unidirectional moisture wicking durability of the woven denim fabric.

[0030] (2) By adjusting the specific methods of hydrophilic treatment, waterproof treatment and cross-linking, this application makes the unidirectional moisture-wicking index of the woven denim fabric 560-562, and after 20 home washes, the unidirectional moisture-wicking index is 180-182, which further improves the unidirectional moisture-wicking index and unidirectional moisture-wicking durability of the woven denim fabric. Detailed Implementation

[0031] The present application will be further described in detail below with reference to specific embodiments.

[0032] The following raw materials mentioned in this application are all commercially available products and are intended to fully disclose the raw materials in this application. They should not be construed as limiting the source of the raw materials. Specifically: packaged yarn, with a single yarn tension of 15-50g and 200-500 yarns per bundle; sodium hydroxide, in flake form, with an effective substance content of 98%; penetrant, polyoxyethylene ether penetrant, model JFC.

[0033] Example 1 The processing method of the unidirectional moisture-wicking woven denim fabric in Example 1 includes the following steps: S1. The warp yarns are hydrophilic treated, rolled dry and dyed (dyeing conveying speed is 20m / min), washed and dried, and sized (75kg cassava starch, 5kg modifier, and 1.5kg propylene are used to make sizing, with a solid content of 10%, viscosity of 5s, and conveying speed of 90m / min), to obtain the warp yarn warp beam. S2. The yarn packages are bundled together, with a count of 6 in English. Each bundle contains approximately 245-320 yarn ends. The yarn is wound onto a bobbin and placed on a yarn-dyeing machine. The yarn packages are then subjected to a series of processes, including hydrophilic treatment (5 water tanks), primary drying (12 drying cylinders at 120°C), waterproofing treatment (1 water tank), and secondary drying (40 drying cylinders at 130°C). The conveying speed is 10 m / min. The yarn is then turned back into packaged yarn to obtain waterproof weft yarn. S3. The warp yarns are interwoven with regular weft yarns (pure cotton) and waterproof weft yarns to form a greige fabric. The regular weft yarns and waterproof weft yarns are woven in a 1:2 ratio. The fabric is singed, cross-linked (using the cross-linking baking method, cross-linking temperature 155℃, cross-linking time 2min), and desized (using a loose desizing machine, the greige fabric is first treated with desizing enzyme in two water tanks, the conveying speed is 30m / min, the desizing tank temperature is 55℃, containing 5g / L of wide-temperature desizing enzyme and 3g / L of penetrant, then stacked in a steamer for 15min at a stacking temperature of 50℃, and then washed. It is first washed in two tanks at 70℃, and then washed in eight tanks at 23℃). The fabric is then pre-shrinked to obtain a unidirectional wet-wet woven denim fabric.

[0034] Specifically, the hydrophilic treatment in steps S1 and S2 is as follows: add a hydrophilic compound treatment agent to the corresponding tank of the dyeing machine, perform hydrophilic treatment at 98°C (1 tank), and wash with water (first wash at 90°C in 2 tanks, then wash at room temperature 23°C in 2 tanks).

[0035] The hydrophilic compound treatment agent includes the following raw material: sodium hydroxide 15g / L.

[0036] The waterproofing treatment involves adding a waterproofing agent to the corresponding tank of the dyeing machine, adjusting the pH value to 3, treating for 25 seconds, and controlling the roll-off rate at 50%.

[0037] Examples 2-5 The processing method of the unidirectional wet-wet woven denim fabric in Examples 2-5 differs from that in Example 1 in that the conveying speeds for the sequential hydrophilic treatment, primary drying treatment, waterproofing treatment, and secondary drying treatment of the conveying bobbins are 15 m / min, 25 m / min, 35 m / min, and 40 m / min, respectively, and the roll-off rate is controlled at 40%. The remaining steps are the same as in Example 1.

[0038] Example 6 The processing method of the unidirectional moisture-wicking woven denim fabric in Example 6 differs from that in Example 3 in that the hydrophilic treatment in step S1 is specifically as follows: a hydrophilic compound treatment agent is added to the corresponding tank of the dyeing machine, and hydrophilic treatment is carried out at a temperature of 95-100°C, with the roll-off rate controlled at 65%.

[0039] The hydrophilic compound treatment agent includes the following raw materials: 15 g / L sodium hydroxide and 5 g / L penetrant. The remaining steps are the same as in Example 3.

[0040] Example 7 The processing method of the unidirectional moisture-wicking woven denim fabric in Example 7 differs from that in Example 6 in that the waterproofing treatment in step S2 is specifically as follows: Waterproofing compound treatment agent is sequentially added to the corresponding tanks of the dyeing machine, the pH value is adjusted to 3, and the treatment time is 25 seconds; wherein, the waterproofing compound treatment agent includes the following raw materials: waterproofing agent (selected as a fluorine-free durable waterproofing agent, purchased from Anggao, model number is...). CWR-ACE) 85g / L, crosslinking agent (purchased from Anggao, model number is...) EXTENDERUXN) 7g / L, penetrant (purchased from Anggao, model number is...) The crosslinking treatment was carried out at 5 g / L PBN, with a crosslinking baking temperature of 150°C and a crosslinking treatment time of 2 min. The remaining steps were the same as in Example 6.

[0041] Example 8 The processing method of the unidirectional moisture-wicking woven denim fabric in Example 8 differs from that in Example 7 in that the waterproof compounding agent includes the following raw materials: waterproofing agent (a fluorine-free durable waterproofing agent purchased from Ningbo Runhe High-Tech Materials Technology Co., Ltd., model RH-NB-SF15) 45g / L, crosslinking agent (purchased from Ningbo Runhe High-Tech Materials Technology Co., Ltd., model RH-NB-SF14) 7g / L, and penetrant (purchased from Anggao, model...). The crosslinking treatment was carried out at 5 g / L PBN, with a crosslinking baking temperature of 155°C and a crosslinking treatment time of 2.5 min. The remaining steps were the same as in Example 7.

[0042] Examples 9-11 The processing method of the unidirectional moisture-wicking woven denim fabric in Examples 9-11 differs from that in Example 7 in that the pH is adjusted to 4, 5 and 6 respectively during the waterproofing treatment, while the remaining steps are the same as in Example 7.

[0043] Comparative Example 1 The processing method of the unidirectional moisture-wicking woven denim fabric in Comparative Example 1 differs from that in Example 1 in that the yarn package is not subjected to hydrophilic treatment and a single drying treatment, while the remaining steps are the same as in Example 1.

[0044] Comparative Example 2 The processing method of the unidirectional wet-wet woven denim fabric in Comparative Example 2 differs from that in Example 1 in that the yarn package was not placed in a dyeing machine for hydrophilic treatment, and instead of a first drying treatment, a waterproofing treatment, and a second drying treatment, the yarn package was soaked and then directly cross-linked. The remaining steps were the same as in Example 1.

[0045] Performance Testing (Part 1) The performance of the unidirectional moisture-wicking woven denim fabrics obtained in Examples 1-11 and Comparative Examples 1-2 was tested using the following methods. The specific test results are shown in Table 1.

[0046] Unidirectional moisture conduction index: The unidirectional moisture conduction index is obtained by conducting vertical unidirectional moisture conduction tests according to the standard method of GB / T 21655.2-2008.

[0047] One-way moisture wicking index after washing: After 20 home washes of denim fabric, a vertical one-way moisture wicking test is conducted according to the standard method of GB / T 21655.2-2008 to obtain the one-way moisture wicking index.

[0048] Table 1. Test results of different unidirectional wet-woven denim fabrics The performance test results in Table 1 show that the unidirectional moisture-wicking woven denim fabric obtained in this application has a maximum unidirectional moisture-wicking index of 562, which improves the unidirectional moisture-wicking effect of the woven denim fabric. After 20 home washes, the unidirectional moisture-wicking index is as high as 182, which has high unidirectional moisture-wicking durability.

[0049] Based on the processing and testing data of the unidirectional moisture-wicking woven denim fabrics in Examples 1-5, it was found that the unidirectional moisture-wicking index of the unidirectional moisture-wicking woven denim fabrics in Examples 2-4 was 521-530, and after 20 home washes, the unidirectional moisture-wicking index was 132-139, both higher than those in Examples 1 and 5. This indicates that a conveying speed of 15-35 m / min is more suitable for sequentially performing hydrophilic treatment, primary drying treatment, waterproofing treatment, and secondary drying treatment on the conveying yarn, which can improve the unidirectional moisture-wicking index and unidirectional moisture-wicking durability of the woven denim fabric.

[0050] According to the treatment and testing data of the unidirectional moisture-wicking woven denim fabrics in Examples 3 and 6, the unidirectional moisture-wicking index of the woven denim fabrics in Examples 2-4 was 545, and after 20 home washes, the unidirectional moisture-wicking index was 150, both higher than that in Example 3. This indicates that adding a hydrophilic compound treatment agent of sodium hydroxide and penetrant to the corresponding tank of the dyeing machine, and performing hydrophilic treatment at a temperature of 95-100°C, followed by washing, can further improve the unidirectional moisture-wicking index and unidirectional moisture-wicking durability of the woven denim fabric.

[0051] According to the treatment and testing data of the unidirectional moisture-wicking woven denim fabrics in Examples 6 and 7, the unidirectional moisture-wicking index of the unidirectional moisture-wicking woven denim fabric in Example 7 was 550, and after 20 home washes, the unidirectional moisture-wicking index was 172, both higher than that in Example 6. This indicates that by sequentially adding a waterproof compound treatment agent, a waterproofing agent, and a crosslinking agent to the corresponding tank of the dyeing machine, adjusting the pH value, and controlling the treatment time to 17-40 seconds, the unidirectional moisture-wicking index and unidirectional moisture-wicking durability of the woven denim fabric can be further improved.

[0052] According to the processing and testing data of the unidirectional moisture-wicking woven denim fabrics in Examples 7 and 8, the unidirectional moisture-wicking index of the unidirectional moisture-wicking woven denim fabric in Example 8 was 554, and after 20 home washes, the unidirectional moisture-wicking index was 175, both higher than that in Example 7. This indicates that after the waterproofing treatment in step S2, it is more appropriate to control the residual rate at 60-75%, which can further improve the unidirectional moisture-wicking index and unidirectional moisture-wicking durability of the woven denim fabric.

[0053] According to the treatment and testing data of the unidirectional moisture-wicking woven denim fabrics in Examples 8-11, the unidirectional moisture-wicking index of the unidirectional moisture-wicking woven denim fabrics in Examples 9-10 was 560-562. After 20 home washes, the unidirectional moisture-wicking index was 180-182, which were higher than those in Examples 8 and 11. This indicates that adjusting the pH value to 4-5 during the waterproofing treatment in step S2 can further improve the unidirectional moisture-wicking index and unidirectional moisture-wicking durability of the woven denim fabric.

[0054] According to the processing and testing data of unidirectional moisture-wicking woven denim fabrics in Example 1 and Comparative Examples 1-2, it was found that placing the yarn in a dyeing machine and sequentially performing hydrophilic treatment, a first drying treatment, a waterproof treatment, and a second drying treatment can improve the unidirectional moisture-wicking index and unidirectional moisture-wicking durability of the woven denim fabric to varying degrees.

[0055] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A processing method for unidirectional moisture-wicking woven denim fabric, characterized in that, It includes the following operating steps: S1. The warp yarns are hydrophilically treated, rolled dry and dyed, washed and dried, sized, and the warp yarn warp beam is obtained. S2. The yarn packages are bundled together, wound onto a ball shaft, and placed on a yarn dyeing machine to be fed through a series of processes including hydrophilic treatment, primary drying, waterproofing treatment, and secondary drying, which are then reversed to form a packaged yarn to obtain waterproof weft yarn. S3. The warp yarns are interwoven with regular weft yarns and waterproof weft yarns to form a greige fabric. The regular weft yarns and waterproof weft yarns are interwoven in proportion, singeed, cross-linked, desized, and pre-shrinked to obtain a unidirectional wet-wet woven denim fabric.

2. The processing method for unidirectional wet-wet woven denim fabric according to claim 1, characterized in that, The conveying speed of the conveying bobbin yarn undergoes hydrophilic treatment, primary drying treatment, waterproofing treatment, and secondary drying treatment in sequence at 15-35 m / min.

3. The processing method for unidirectional wet-wet woven denim fabric according to claim 1, characterized in that, The hydrophilic treatment in steps S1 and S2 is the same, specifically: adding a hydrophilic compound treatment agent to the corresponding tank of the dyeing machine, performing hydrophilic treatment at a temperature of 95~100℃, and then washing with water; The hydrophilic compound treatment agent includes the following raw materials: sodium hydroxide 10-20g / L and penetrant 2-8g / L.

4. The processing method for unidirectional wet-wet woven denim fabric according to claim 1, characterized in that, The waterproofing treatment in step S2 specifically involves: sequentially adding the waterproofing compound treatment agent into the corresponding tanks of the dyeing machine, adjusting the pH value, and treating for 17-40 seconds. The waterproof compound treatment agent includes the following raw materials: waterproofing agent 30-100g / L, crosslinking agent 5-15g / L, and penetrant 5g / L.

5. The processing method for unidirectional wet-wet woven denim fabric according to claim 4, characterized in that, After the waterproofing treatment in step S2, the roll-off rate is controlled at 60-75%.

6. The processing method for unidirectional wet-wet woven denim fabric according to claim 4, characterized in that, The pH value is adjusted to 4-5.

7. The processing method for unidirectional wet-wet woven denim fabric according to claim 1, characterized in that, The crosslinking treatment in step S3 specifically involves using a crosslinking baking method, with a crosslinking temperature of 130-180℃ and a crosslinking time of 1-3 minutes.

8. A unidirectional wet-woven denim fabric processed by any one of the processing methods described in 1-7.

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