Woven fabric and method for producing the same

By using high-liquid scouring and bleaching treatment and subsequent mercerizing and softening processes, the problems of long processes and holes in traditional scouring and bleaching processes have been solved, achieving high moisture absorption and high whiteness of woven fabrics, and meeting current processing needs.

CN116695419BActive Publication Date: 2025-11-18GUANGDONG ZHENYUAN TEXTILE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202310599063.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-25
Publication Date
2025-11-18
Estimated Expiration
2043-05-25

AI Technical Summary

Technical Problem

Traditional bleaching and finishing processes are lengthy, prone to holes, have low production efficiency, and result in cotton fiber fabrics with insufficient moisture absorption and whiteness.

Method used

The process employs high-liquid scouring and bleaching treatment, using components such as hydrogen peroxide stabilizer, dispersant, refining agent, and sodium hydroxide. The component ratio is controlled, and the process includes singeing, pre-scouring and bleaching, scouring and bleaching storage, mercerizing, and softening treatments to reduce fabric holes and improve moisture absorption and whiteness.

Benefits of technology

It simplifies the process, reduces the risk of holes, improves the moisture absorption and whiteness of woven fabrics, and adapts to existing processing techniques.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a preparation method of a woven fabric, which comprises the following steps: sequentially carrying out singeing treatment, pre-scouring and bleaching treatment and scouring and bleaching storage treatment on a woven fabric blank to obtain a pretreated woven fabric; carrying out high-liquor scouring and bleaching treatment on the pretreated woven fabric to obtain an intermediate woven fabric; the preparation raw material of high-liquor used in the high-liquor scouring and bleaching treatment comprises the following components in parts by weight: 1-15 parts of hydrogen peroxide stabilizer, 1-15 parts of dispersing agent, 1-15 parts of refining agent, 1-100 parts of sodium hydroxide and 3-30 parts of hydrogen peroxide; the mass content of the hydrogen peroxide is 25-30%; sequentially carrying out mercerizing treatment and softening treatment on the intermediate woven fabric to prepare the woven fabric. The preparation method of the woven fabric is simple, has few processes and is easy to realize; the prepared woven fabric has few holes on the fabric surface, good moisture absorption and high whiteness.
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Description

Technical Field

[0001] This application relates to the field of textile processing and manufacturing technology, and in particular to a woven fabric and a method for preparing the same. Background Technology

[0002] Woven fabrics are made by interlacing two or more sets of perpendicular yarns at a 90-degree angle. The longitudinal yarns are called warp yarns, and the transverse yarns are called weft yarns. Fabrics that come directly from the loom without dyeing or finishing often contain certain impurities, byproducts of cellulose fibers such as waxes, pectins, and natural pigments, oils from chemical fibers, and sizing agents from the warp yarns during weaving. Failure to remove these impurities will affect the fabric's color and feel, and further, its dyeing process; therefore, scouring and bleaching treatments are generally required.

[0003] In daily textile processing, the scouring and bleaching process includes continuous processes such as singeing and cold stacking, desizing and storage, desizing and scouring, scouring and bleaching, scouring and bleaching storage, desizing machine return bleaching, scouring, and bleaching. Before weaving, warp yarns generally undergo sizing to improve their strength, abrasion resistance, and smoothness, facilitating weaving. However, the sizing on the greige fabric is detrimental to dyeing and printing, and may even hinder the application of dyes and chemicals to the fibers, affecting the quality of dyed products. Therefore, fabrics must undergo desizing at the beginning of dyeing and finishing. Alkali desizing is currently the most common method used for pure cotton or blended fabrics, and it removes most sizing agents. After desizing, most of the sizing agents and a small amount of natural impurities are removed. However, most natural impurities in the fibers, such as waxy substances, pectin, nitrogenous substances, cottonseed hulls, and a small amount of oil and sizing agents, remain on the fabric, making the cotton fabric appear yellowish, with poor moisture absorption and permeability, and unable to meet the requirements of subsequent dyeing and finishing processes. To give cotton fabrics a certain degree of absorbency and permeability, they must be scouring after desizing to remove most of the residual impurities from the fibers. Caustic soda is the main agent used for scouring cotton and cotton-type fabrics; under prolonged exposure and at certain temperatures, it can react with various impurities on the fabric. To enhance the scouring effect, a certain amount of surfactants, such as sodium sulfate, sodium silicate, and sodium phosphate, can also be added. After scouring, most impurities are removed and the absorbency is greatly improved, but because natural pigments remain on the fibers, the appearance is not yet white enough, and bleaching is generally required; otherwise, it will affect the vibrancy of dyeing or printing colors. Currently, the main bleaching agents used for cotton fabrics are sodium hypochlorite, hydrogen peroxide, and sodium chlorite. After scouring and bleaching, the fabric is returned to the desizing machine for rebleaching to ensure that the fabric meets the quality requirements of the dyeing and finishing process.

[0004] As a result, the traditional bleaching process is lengthy, and in actual processing, improper control can easily lead to holes, while production efficiency is relatively low. Summary of the Invention

[0005] Therefore, it is necessary to provide a woven fabric with few holes, good moisture absorption and high whiteness, and a method for preparing the same.

[0006] This application is achieved through the following technical solution:

[0007] One aspect of this application provides a method for preparing woven fabric, comprising the following steps: sequentially subjecting woven fabric to singeing treatment, pre-scouring and bleaching treatment, and scouring and bleaching storage treatment to prepare pre-treated woven fabric.

[0008] The pretreated woven fabric is subjected to high-feed scouring and bleaching treatment to prepare an intermediate woven fabric. By weight, the raw materials for preparing the high-feed scouring and bleaching treatment include the following components: 1-15 parts hydrogen peroxide stabilizer; 1-15 parts dispersant; 1-15 parts refining agent; 1-100 parts sodium hydroxide; 3-30 parts hydrogen peroxide; the hydrogen peroxide content is 25%-30% by mass.

[0009] The intermediate woven fabric is subjected to mercerizing, softening, and setting treatments to prepare a woven fabric.

[0010] In one embodiment, the raw materials for preparing the high-yield solution, by weight, include the following components: 5 to 9 parts hydrogen peroxide stabilizer; 1 to 5 parts dispersant; 7 to 11 parts refining agent ASL; 1 to 20 parts sodium hydroxide; 10 to 22 parts hydrogen peroxide; wherein the hydrogen peroxide has a mass content of 25% to 30%.

[0011] In one embodiment, the weight ratio of hydrogen peroxide to sodium hydroxide is (0.5-3):1.

[0012] In one embodiment, the weight ratio of hydrogen peroxide to sodium hydroxide is (1-2):1.

[0013] In one embodiment, the high-feed solution used in the high-feed bleaching treatment satisfies at least one of the conditions (a) to (c):

[0014] (a) The refining agent is refining agent ASL;

[0015] (b) The hydrogen peroxide stabilizer is hydrogen peroxide stabilizer P;

[0016] (c) The dispersant is dispersant FE.

[0017] In one embodiment, the yarn count of the woven fabric is 20-120.

[0018] In one embodiment, the liquid retention rate of the woven fabric obtained by the high-liquid scouring and bleaching treatment is controlled to be 90% to 100%.

[0019] In one embodiment, after the high-liquid scouring and bleaching treatment and before the step of obtaining the intermediate woven fabric, the following step is further included:

[0020] The woven fabric obtained from the high-liquid scouring and bleaching treatment is then subjected to water washing and drying treatment in sequence.

[0021] In one embodiment, the mercerizing process includes the following steps:

[0022] The intermediate woven fabric is immersed in an alkaline solution for mercerizing treatment to obtain a mercerized woven fabric.

[0023] This application also provides a woven fabric, which is prepared by the above-described method for preparing woven fabric.

[0024] The above-mentioned method for preparing woven fabrics first involves singeing, pre-scouring and bleaching, and scouring and bleaching storage of the woven fabric to remove some impurities, resulting in pre-treated woven fabric. Then, the pre-treated woven fabric is scouring and bleached using a high-feed liquid. By controlling the composition and ratio of the raw materials used in preparing the high-feed liquid, the dissolution of each component is promoted, and component aggregation is avoided. This high-feed liquid also has functions such as cleaning, emulsification, dispersion, and penetration. Hydrogen peroxide stabilizers and dispersants are selected to control the decomposition rate of hydrogen peroxide and prevent ineffective decomposition. Furthermore, the above-mentioned high-feed liquid scouring and bleaching treatment increases the liquid retention rate on the fabric surface, reduces the tensile and compressive stresses experienced by the fabric during processing, and reduces the formation of holes in the fabric surface.

[0025] In addition, sodium hydroxide in the high-feed solution has a certain decomposition and removal effect on natural pigments and impurities on fibers, and can also remove residual wax, pectin and oil from the fabric. The refining agent can effectively remove difficult-to-wash grease, wax and other impurities. Hydrogen peroxide, as a bleaching agent, bleachs woven fabrics with good bleaching effect, little damage to fibers, and a certain impurity removal ability. It can remove impurities in the cold piling, desizing and scouring processes. After the singeing step and before the high-feed solution scouring and bleaching treatment, cold piling, desizing and scouring treatments are not required. Finally, the finished woven fabric is obtained through mercerizing and softening treatments.

[0026] In summary, the preparation method of this woven fabric is simple, involves few steps, and is easy to implement. The resulting woven fabric has few holes, good moisture absorption, and high whiteness. The prepared woven fabric can be adapted to existing fabric production and processing technologies. Detailed Implementation

[0027] To facilitate understanding of this application, a more complete description is provided below, along with preferred embodiments. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Unless otherwise shown or indicated in the operational embodiments, all figures used to represent the amounts, physicochemical properties, etc., of ingredients in the specification and claims are to be understood to be adjusted by the term "about" in all cases. For example, therefore, unless stated to the contrary, the numerical parameters listed in the foregoing specification and appended claims are approximations, and those skilled in the art can appropriately modify these approximations to obtain the desired characteristics by utilizing the teachings disclosed herein. The use of numerical ranges indicated by endpoints includes all numbers within that range and any range within that range; for example, 1 to 5 includes 1, 1.1, 1.3, 1.5, 2, 2.75, 3, 3.80, 4, and 5, etc.

[0030] One embodiment of this application provides a method for preparing woven fabric, including the following steps (1) to (3).

[0031] (1) The woven fabric is subjected to singeing, pre-scouring and bleaching and storage treatment in sequence to obtain pre-treated woven fabric.

[0032] (2) The pre-treated woven fabric in step (1) is subjected to high-pressure scouring and bleaching treatment to obtain intermediate woven fabric.

[0033] In some embodiments, the raw materials for preparing the high-feed liquid used in the above-mentioned high-feed liquid bleaching treatment, by weight, include the following components: 1 part to 15 parts hydrogen peroxide stabilizer; 1 part to 15 parts dispersant; 1 part to 15 parts refining agent; 1 part to 100 parts sodium hydroxide; 3 parts to 30 parts hydrogen peroxide; and the mass content of hydrogen peroxide is 25% to 30%.

[0034] It is understandable that the weight ratio of hydrogen peroxide to sodium hydroxide can be 0.1:1, 0.5:1, 1:1, 1.5:1, 2:1, 2.5:1, 3:1, 3.5:1, 4:1, 4.5:1, or 5:1.

[0035] It is understandable that the sodium hydroxide added to the high-permeability solution not only provides the pH value required for hydrogen peroxide decomposition, but is also a key substance that works with the refining agent to remove impurities. Insufficient dosage will affect whiteness, incomplete impurity removal, poor wicking effect, unevenness, and rough hand feel. Furthermore, by controlling the composition and ratio of the raw materials used in the preparation of the high-permeability solution, the dissolution of each component is promoted, and the aggregation of components in the solution is avoided, so that each component can work synergistically and fully on the fabric.

[0036] (3) The intermediate woven fabric in step (2) is sequentially mercerized and softened to prepare the woven fabric.

[0037] The intermediate woven fabric is immersed in an alkaline solution for mercerizing treatment to obtain a mercerized woven fabric.

[0038] The above-mentioned method for preparing woven fabrics first involves singeing, pre-scouring and bleaching, and scouring and bleaching storage of the woven fabric to remove some impurities, resulting in pre-treated woven fabric. Then, the pre-treated woven fabric is scouring and bleached using a high-feed liquid. By controlling the composition and ratio of the raw materials used in preparing the high-feed liquid, the dissolution of each component is promoted, and component aggregation is avoided. This high-feed liquid also has functions such as cleaning, emulsification, dispersion, and penetration. Hydrogen peroxide stabilizers and dispersants are selected to control the decomposition rate of hydrogen peroxide and prevent ineffective decomposition. Furthermore, the above-mentioned high-feed liquid scouring and bleaching treatment increases the liquid retention rate on the fabric surface, reduces the tensile and compressive stresses experienced by the fabric during processing, and reduces the formation of holes in the fabric surface.

[0039] In addition, sodium hydroxide in the high-feed solution has a certain decomposition and removal effect on natural pigments and impurities on fibers, and can also remove residual wax, pectin and oil from the fabric. The refining agent can effectively remove difficult-to-wash grease, wax and other impurities. Hydrogen peroxide, as a bleaching agent, bleachs woven fabrics with good bleaching effect, little damage to fibers, and a certain impurity removal ability. It can remove impurities in the cold piling, desizing and scouring processes. After the singeing step and before the high-feed solution scouring and bleaching treatment, cold piling, desizing and scouring treatments are not required. Finally, the finished woven fabric is obtained through mercerizing and softening treatments.

[0040] Therefore, the preparation method of the woven fabric of this application is simple, has few steps, is easy to implement, and the woven fabric obtained has few holes, good moisture absorption and high whiteness. The prepared woven fabric can be adapted to existing fabric production and processing technology.

[0041] In some embodiments, the high-yield liquid comprises, by weight, the following components: 5 to 9 parts hydrogen peroxide stabilizer; 1 to 5 parts dispersant; 7 to 11 parts refining agent ASL; 1 to 20 parts sodium hydroxide; 10 to 22 parts hydrogen peroxide; and the hydrogen peroxide content is 25% to 30% by mass.

[0042] Furthermore, controlling the components of the high-fluid supply within this preferred range can improve the overall effect of the high-fluid supply and reduce the generation of holes in the fabric.

[0043] In some of these embodiments, the weight ratio of hydrogen peroxide to sodium hydroxide is (0.5–3):1.

[0044] Further control of each component of the high-fluid supply within this preferred range can improve the overall effect of the high-fluid supply and reduce the generation of holes in the fabric.

[0045] In some embodiments, the weight ratio of hydrogen peroxide to sodium hydroxide is (1-2):1. Further controlling the components of the high-feed solution within this preferred range can improve the overall effect of the high-feed solution and reduce the formation of holes in the fabric. Further, the weight ratio of hydrogen peroxide to sodium hydroxide is 2:1.

[0046] In one embodiment, the refining agent is refining agent ASL.

[0047] In one embodiment, the hydrogen peroxide stabilizer is hydrogen peroxide stabilizer P.

[0048] In one embodiment, the dispersant is dispersant FE.

[0049] In some embodiments, the yarn count of the woven fabric is 20-120.

[0050] As you can understand, yarn count refers to the fineness of the yarn. The higher the yarn count, the finer the yarn and the smoother the fabric.

[0051] In some embodiments, the speed of the singeing process in step (1) is 40 m / min to 110 m / min.

[0052] It is understandable that singeing involves quickly passing the fabric through the flame of a singeing machine or across a red-hot metal surface, causing the fibers on the fabric surface to burn due to rapid heating. Because the fabric itself has a relatively dense and thick structure and heats up more slowly, it leaves the flame or red-hot metal surface before reaching its ignition point, thus achieving the goal of burning off the fibers without damaging the fabric.

[0053] In some embodiments, the speed of the vehicle in the pre-drifting process in step (1) is 40m / min to 110m / min.

[0054] In some embodiments, the pre-bleaching treatment solution comprises the following components: H2O2: 40-60 parts; NaOH: 15-25 parts; Stabilol P (hydrogen peroxide stabilizer): 10-15 parts; Foryl WR (dewax remover): 5 parts; Securon FE (dispersant): 5 parts; COTTOCLARIN ASL (refining agent): 8-20 parts, and the hydrogen peroxide content is 27.5% by mass.

[0055] In some embodiments, after the pre-paddle practice treatment and before the paddle practice storage treatment step, the following steps are further included:

[0056] The woven fabric obtained from the pre-bleaching process is then washed and dried in sequence.

[0057] In some embodiments, the water washing temperature is 60°C to 90°C.

[0058] In some embodiments, the storage time for rinsing and bleaching in step (1) is 16h to 24h, and the temperature is 10℃ to 60℃.

[0059] In some embodiments, the liquid retention rate of the woven fabric obtained by the high-liquid scouring and bleaching treatment in step (2) is controlled to be 90% to 100%.

[0060] In a specific example, in step (2), the high-feed liquid is used to scouring and bleach the pre-treated woven fabric through a high-feed liquid addition device.

[0061] The high-feed liquid addition device includes an inlet and an outlet for replacing the high-feed liquid, and a mixing tank connected to the inlet and outlet. The mixing tank is equipped with a material trough. During the high-feed liquid scouring and bleaching process of the pre-treated woven fabric, the pre-treated woven fabric is immersed in the high-feed liquid through the material trough for scouring and bleaching.

[0062] In some embodiments, the above-mentioned high-fluid addition device is provided with three material tanks and a mixing box.

[0063] Understandably, in traditional technology, the liquid carrying rate of the rollers is only 70% to 80%, which is low. This application increases the contact time between the rollers and the woven fabric by adjusting the number of times the high liquid feeding treatment is applied, thereby increasing the time for the woven fabric to absorb the solution and allowing the woven fabric to absorb the solution more fully, thus further improving the liquid carrying rate of the woven fabric. After the woven fabric passes through 3 high liquid feeding tanks, the liquid carrying rate can reach 90% to 100%.

[0064] In some embodiments, after the high-fluid scouring and bleaching treatment and before the step of obtaining the intermediate woven fabric, the woven fabric obtained by the high-fluid scouring and bleaching treatment is further subjected to a step of washing and drying in sequence.

[0065] Furthermore, during the high-liquid scouring and bleaching process of the pre-treated woven fabric, the feeding method is a continuous flat-width processing method.

[0066] In some embodiments, the feeding speed is 40m / min to 100m / min.

[0067] In some embodiments, the mercerizing step (3) includes immersing the intermediate woven fabric in an alkaline solution for mercerizing to obtain the mercerized woven fabric.

[0068] In some embodiments, the alkaline substance in the alkaline solution includes sodium hydroxide.

[0069] In some embodiments, the mass content of the alkaline solution used for the mercerizing treatment is 14% to 18%.

[0070] In some embodiments, the mercerizing process takes 1 to 3 minutes.

[0071] Mercerizing is understandable. It refers to treating cotton fiber fabrics with concentrated caustic soda under certain tension while maintaining the required dimensions. As a result, the fabric gains a silk-like luster. In addition, the fabric's strength, elongation, dimensional and morphological stability are also improved, as are the fiber's chemical reactivity and dye adsorption capacity.

[0072] In some embodiments, the softening step in step (3) above includes immersing the mercerized woven fabric in a softener for softening treatment, and then drying it to obtain the softened woven fabric.

[0073] In some embodiments, the softener includes at least one of silicone oil, softener XQS-1, and softener Adalin NI.

[0074] In one embodiment, the silicone oil was purchased from Dongguan Xianqiao Additives Co., Ltd., and the softener XQS-1 and softener Adalin NI were purchased from Keke Co., Ltd.

[0075] In some embodiments, the speed of the vehicle undergoing the softening process is 40 m / min to 100 m / min.

[0076] In some embodiments, the temperature of the drying process described above is 100°C to 150°C.

[0077] In some embodiments, the drying process takes 20 to 25 seconds.

[0078] In some embodiments, step (3) further includes a pre-shrinking process on the softened woven fabric after the softening process.

[0079] Furthermore, the speed of the vehicle undergoing the pre-shrinking process is 50m / min to 80m / min.

[0080] It is understandable that during the dyeing and finishing process, the warp direction of the fabric is subjected to tension, which reduces the warp crimp height, resulting in elongation. When hydrophilic fiber fabrics are soaked in water, the fibers swell, increasing the diameter of both warp and weft yarns. This increases the warp crimp height, shortens the fabric length, and causes shrinkage. Fabric pre-shrinking is a mechanical pre-shrinking process using a pre-shrinking machine. In addition to achieving stable dimensions, it also improves the hand and visual feel of the fabric, enabling it to meet certain weight and stiffness requirements.

[0081] This application also provides a woven fabric, which is prepared by the above-described method for preparing woven fabric.

[0082] It is understandable that the above-mentioned woven fabrics have fewer holes in the fabric surface, good moisture absorption and high whiteness.

[0083] To make the objectives, technical solutions, and advantages of this invention clearer and more concise, the invention is described using the following specific embodiments, but the invention is by no means limited to these embodiments. The embodiments described below are merely preferred embodiments of the invention and can be used to describe the invention, but should not be construed as limiting the scope of the invention. It should be noted that any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the protection scope of this invention.

[0084] To better illustrate the present invention, the following embodiments are provided for further explanation. The specific embodiments are as follows.

[0085] Example 1

[0086] (1) The pure cotton woven fabric with a single yarn count of 40S was singed at a speed of 110m / min, and then subjected to pre-scouring and bleaching, washing and drying treatments in sequence at a speed of 50m / min. The pre-scouring and bleaching treatment solution consisted of H2O2: 40 parts; NaOH: 20 parts; Stabilol P: 10 parts; Foryl WR: 5 parts; Securon FE: 5 parts; COTTOCLARIN ASL: 8 parts; and hydrogen peroxide with a mass content of 27.5%.

[0087] The fabric is bleached and stored for 16 hours to obtain the pretreated woven fabric.

[0088] (2) The pre-treated woven fabric in step (1) is fed at a speed of 50 m / min and subjected to high-temperature scouring and bleaching treatment. The total time for high-temperature scouring and bleaching treatment is 2 min. After passing through the high-temperature scouring and bleaching treatment, the fabric passes through stainless steel guide rollers for 1 min. Then, it passes through 4 washing tanks for 3 min. Finally, it passes through a stainless steel drying cylinder for high-temperature drying at a temperature of 110°C to obtain the intermediate woven fabric.

[0089] By weight, the high-feed liquor for the above-mentioned high-feed liquor bleaching treatment comprises the following components: 1 part hydrogen peroxide stabilizer P (purchased from PULCRA, trade name STABILOL P); 2 parts dispersant FE (purchased from PULCRA, trade name SECURON FE); 15 parts refining agent ASL (purchased from PULCRA, trade name COTTOCLARINASL); 27 parts sodium hydroxide (purchased from Shandong Haiwan Company, trade name LIQUID CAUSTIC SODA NAOH); and 3 parts hydrogen peroxide (purchased from Guangzhou Shunhong Company), with a hydrogen peroxide content of 27.5% by mass.

[0090] (3) The intermediate woven fabric in step (2) is immersed in alkaline solution for mercerizing treatment for 1 min. Then, the mercerized woven fabric is soaked in softener XQS-1 for softening treatment at a speed of 80 m / min. Then, it is dried at a temperature of 150℃ for 25 s. Finally, it is pre-shrinked at a speed of 50 m / min to prepare pure cotton woven fabric.

[0091] (4) The prepared pure cotton woven fabric was subjected to the following performance tests.

[0092] 1. The liquid retention rate of the woven fabrics prepared in the examples and comparative examples was tested. The specific test method was as follows: Take the fabric after padding and calculate the padding rate: (Wet fabric weight - Dry fabric weight) / Dry fabric weight * 100%.

[0093] 2. Perform a wicking effect test on the woven fabrics prepared in the examples and comparative examples. The specific test method is as follows: take a 30 cm long and 2.5 cm wide piece of fabric in either the warp or weft direction, hang one end on a support, and immerse the other end 1 cm in water. Time for 5 minutes, and the height of the fabric that is wetted is the wicking effect.

[0094] 3. The whiteness of the woven fabrics prepared in the examples and comparative examples was tested. The specific test method was: X-RITE COLOR-EYE 7000A spectrophotometer. The measured value was the whiteness value.

[0095] 4. The woven fabrics prepared in the examples and comparative examples were scored for holes. The specific scoring method was as follows: under the condition of D65 light source with the front light and the bottom light on, holes that are visible to the naked eye were scored as 4 points. The score should not exceed 40 points per 100 yards. If the score exceeds 40 points, the fabric is downgraded.

[0096] 5. The woven fabrics prepared in the examples and comparative examples were subjected to strength tests. The test method refers to GB / T3923.2. The sample size is 20CM*10CM, the clamping distance is 10MM, and the speed is 50MM / MN. The test unit is G.

[0097] Other Examples 2-9 and Comparative Examples 1-3 were identical except for the high-feed liquid components shown in Table 1.

[0098] Table 1

[0099]

[0100] Table 1 shows the liquid retention rate, wicking effect, strength, whiteness and hole score of the woven fabrics in Examples 1-9 and Comparative Examples 1-3. It can be seen that the woven fabrics prepared in this application have fewer holes, better moisture absorption and higher whiteness compared with the woven fabrics prepared in the comparative examples.

[0101] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0102] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for preparing woven fabric, characterized in that, The process includes the following steps: the woven fabric is sequentially singed, pre-scouring and bleaching, and scouring and bleaching storage to obtain the pre-treated woven fabric. The pretreated woven fabric is subjected to high-feed scouring and bleaching treatment to obtain an intermediate woven fabric. By weight, the raw materials for preparing the high-feed scouring and bleaching treatment include the following components: 1-15 parts hydrogen peroxide stabilizer; 1-15 parts dispersant; 1-15 parts refining agent; 1-100 parts sodium hydroxide; 3-30 parts hydrogen peroxide; the hydrogen peroxide has a mass content of 25%-30%; the weight ratio of hydrogen peroxide to sodium hydroxide is (0.5-3):1; the liquid retention rate of the woven fabric obtained from the high-feed scouring and bleaching treatment is controlled to be 90%-100%; the refining agent is refining agent ASL; the hydrogen peroxide stabilizer is hydrogen peroxide stabilizer P; the dispersant is dispersant FE. The intermediate woven fabric is sequentially subjected to mercerizing and softening treatments to prepare a woven fabric.

2. The preparation method according to claim 1, characterized in that, The raw materials for preparing the high-permeability liquid, by weight, include the following components: 5 to 9 parts hydrogen peroxide stabilizer; 1 to 5 parts dispersant; 7 to 11 parts refining agent ASL; 1 to 20 parts sodium hydroxide; 10 to 22 parts hydrogen peroxide; and the hydrogen peroxide has a mass content of 25% to 30%.

3. The preparation method according to claim 1, characterized in that, The weight ratio of hydrogen peroxide to sodium hydroxide is (1~2):

1.

4. The preparation method according to claim 3, characterized in that, The weight ratio of hydrogen peroxide to sodium hydroxide is 2:

1.

5. The preparation method according to claim 1, characterized in that, The yarn count of the woven fabric is 20-120 English count.

6. The preparation method according to any one of claims 1 to 3, characterized in that, After the high-liquid scouring and bleaching treatment, and before the step of obtaining the intermediate woven fabric, the following steps are also included: The woven fabric obtained from the high-liquid scouring and bleaching treatment is then subjected to water washing and drying treatment in sequence.

7. The preparation method according to any one of claims 1 to 3, characterized in that, The mercerizing process includes the following steps: The intermediate woven fabric is immersed in an alkaline solution for mercerizing treatment to obtain a mercerized woven fabric.

8. A woven fabric, characterized in that, The woven fabric is prepared by the method for preparing woven fabric as described in any one of claims 1 to 7.

Citation Information

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