Moisture-absorbing and quick-drying polyester messy hemp fabric and preparation process thereof

Abstract

The invention discloses a preparation process of a moisture-absorbing and quick-drying polyester messy hemp fabric. The moisture-absorbing and quick-drying polyester messy hemp fabric is prepared from the following raw materials in percentage by mass: 70-85% of polyester fibers, 10-20% of hemp fibers and the balance of viscose fibers, the preparation process comprises the following steps: S1, fiber mixing: mixing polyester fibers, hemp fibers and viscose fibers; s2, plasma treatment: carrying out plasma treatment on the mixed fibers, and using oxygen as a treatment gas; s3, spinning: spinning the fibers subjected to plasma treatment, adopting twisted yarns of polyester fibers and hemp fibers as warp yarns, and adopting viscose fibers as weft yarns; s4, weaving: weaving by adopting a plain weave; and S5, post-treatment: carrying out post-treatment on the woven fabric, wherein the post-treatment comprises pre-shaping and moisture absorption and sweat releasing finishing. By optimizing the fiber ratio and combining the plasma treatment technology, the moisture absorption and sweat releasing performance of the polyester messy hemp fabric is remarkably improved, and meanwhile the original wear resistance of the polyester messy hemp fabric is kept.

Description

Technical Field

[0001] The present invention relates to the technical field of fabric processing, and more particularly to a polyester random linen fabric with moisture absorption and quick drying properties and its preparation process. Background Art

[0002] The polyester random linen fabric is a textile fabric mainly composed of polyester fibers. With its good drapability, wrinkle resistance and abrasion resistance, it has wide applications in clothing production, especially suitable for making clothing that requires a crisp feeling, such as dresses and trousers. However, with the improvement of living standards, modern consumers' demands for clothing fabrics are no longer limited to abrasion resistance and wrinkle resistance, but they pay more attention to comfort and functionality.

[0003] In sports and daily wear, consumers hope that the fabric can quickly absorb and dissipate sweat to keep the skin dry. However, the current polyester random linen fabrics on the market have obvious deficiencies in terms of moisture absorption and breathability. Polyester fibers themselves are a kind of hydrophobic materials with poor moisture absorption and sweat wicking performance. This characteristic causes the polyester random linen fabric to easily generate a stuffy feeling when worn, especially in summer or sports scenarios. Therefore, in view of the deficiencies of the polyester random linen fabric in terms of moisture absorption and breathability, a polyester random linen fabric with moisture absorption and quick drying properties is invented. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a polyester random linen fabric with moisture absorption and quick drying properties and its preparation process.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A preparation process of a polyester random linen fabric with moisture absorption and quick drying properties is made from the following raw materials by mass percentage: 70 - 85% of polyester fibers, 10 - 20% of hemp fibers, and the balance is viscose fibers;

[0007] The preparation process includes the following steps:

[0008] S1. Fiber mixing: Mix 70 - 85% of polyester fibers, 10 - 20% of hemp fibers and the balance of viscose fibers in a twin-screw mixer at a rotational speed of 20 - 30 r / min for 20 min;

[0009] S2. Plasma treatment: Perform plasma treatment on the mixed fibers, using oxygen or argon as the treatment gas, with a treatment time of 1 - 10 min and a power of 50 - 200 W;

[0010] S3. Spinning: Spin the fibers after plasma treatment. The warp yarn is a twisted yarn of polyester fibers and hemp fibers, and the weft yarn is viscose fiber;

[0011] S4. Weaving: Plain weave is used for weaving, with a warp density of 40 - 60 threads / cm and a weft density of 20 - 40 threads / cm;

[0012] S5. Post-treatment: The woven fabric is post-treated, including pre-setting and moisture absorption and sweat discharge finishing, to obtain a fully polyester random linen fabric with moisture absorption and quick-drying properties.

[0013] Preferably, in step S2, oxygen is used as the treatment gas for the plasma treatment, the treatment time is 3 - 7 min, and the power is 100 - 150 W.

[0014] Preferably, the warp density of the weaving process is 45 - 55 threads / cm, and the weft density is 25 - 35 threads / cm.

[0015] Preferably, the moisture absorption and sweat discharge finishing is carried out by surface treatment with a moisture absorption and sweat discharge finishing agent, and the moisture absorption and sweat discharge finishing agent is polyethylene glycol (PEG).

[0016] Preferably, the contact angle of the fully polyester random linen fabric is less than 30°, and the water absorption time is less than 200 milliseconds.

[0017] Preferably, hydroxyl or carboxyl hydrophilic groups are introduced on the surface of the fibers after the plasma treatment.

[0018] Preferably, the antibacterial performance of the fully polyester random linen fabric meets the requirements of the national standard GB / T 20944.3 - 2008.

[0019] Preferably, the preparation process of the fully polyester random linen fabric further includes adding an antistatic finishing agent in the post-treatment, and the antistatic finishing agent is a polyether ester antistatic agent.

[0020] Preferably, the fully polyester random linen fabric is made of the following raw materials by mass percentage: 70 - 85% of polyester fiber, 10 - 20% of linen fiber, and the balance is viscose fiber.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. By optimizing the fiber ratio, 70% polyester fiber and 20% linen fiber are used as the warp, and 10% viscose fiber is used as the weft, which not only endows the fabric with softness and skin-friendliness, and combines with the breathability of the linen fiber (breathability is greater than 100 mm / s), thus eliminating the itchy feeling of traditional linen fabrics and significantly improving the wearing comfort, but also retains the strength and wear resistance of polyester. By introducing hydroxyl or carboxyl hydrophilic groups on the fiber surface through plasma treatment and combining with the synergistic effect of polyethylene glycol with moisture absorption and sweat discharge, the contact angle of the fabric is significantly reduced to less than 30°, and the water absorption time is shortened to less than 200 milliseconds, realizing rapid moisture absorption and efficient moisture conduction.

[0023] 2. Optimizing plasma treatment parameters (power 100-150W, duration 3-7 minutes) improves fiber surface modification, avoids excessive fiber damage, and reduces energy consumption and reliance on chemical reagents, resulting in a green and efficient process. Optimizing plain weave (warp density 45-55 strands / cm, weft density 25-35 strands / cm) ensures a dense and lightweight fabric structure, while also balancing dimensional stability and breathability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a process flow chart of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to specific examples. It should be understood that the following examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0026] 1. Determination method

[0027] 1. Contact angle

[0028] The contact angle is an important indicator to measure the hydrophilicity of the fabric surface. The smaller the contact angle, the better the hydrophilicity of the fabric.

[0029] (1) Method: A contact angle tester was used to measure the surface of the polyester and linen fabric. 3 μL of distilled water was dropped on the surface of the polyester and linen fabric. After standing for 10 seconds, a photo was taken and the contact angle was measured.

[0030] (2) Standard: When the fabric contact angle is less than 30°, it indicates that the polyester and linen fabric has good hydrophilicity.

[0031] 2. Water absorption time

[0032] The water absorption time is used to evaluate the moisture absorption and quick-drying performance of all-polyester and linen fabrics.

[0033] (1) Method: According to ISO 20158:2018, fabric samples were immersed in water and their water absorption time and water absorption capacity were measured;

[0034] (2) Standard: When the water absorption time of the fabric is less than 200 milliseconds, it indicates that the polyester and linen fabric has good moisture absorption and perspiration wicking properties.

[0035] 3. Breathability

[0036] Breathability is an important indicator to measure the air circulation ability of fabrics.

[0037] (1) Method: According to GB / T 5453-1997, use an air permeability tester with a test area of 20 cm 2 , the pressure difference is 100Pa;

[0038] (2) Standard: When the air permeability is greater than 100 mm / s, it indicates that the fabric has good air permeability.

[0039] 4. Skin-friendliness

[0040] (1) Method: Ten experienced assessors evaluate the skin-friendliness of the fabric, and evaluate the softness, itching sensation, and stuffy feeling of each fabric respectively;

[0041] (2) Standard: The skin-friendliness evaluation indicators and standards are shown in Table 1.

[0042] Table 1 Skin-friendliness evaluation indicators and standards

[0043] Index Evaluation Criteria Score (1 - 5 points) Softness Very soft, no frictional resistance, no sense of compression when in contact with the skin 1～5 Itching Sensation Completely no itching sensation, no abnormal reaction on the skin 1～5 Stuffy Feeling No stuffy feeling, excellent breathability, refreshing feeling 1～5

[0044] 5. Abrasion resistance

[0045] Abrasion resistance is a measure of the fabric's ability to resist wear during use.

[0046] (1) Method: According to the standard of GB / T 21196.3-2007, use a Martindale abrasion tester, set the friction times to 1000 times, the load to 395 g, and record the mass loss before and after abrasion;

[0047] (2) Standard: The abrasion resistance index ≥ 100 times / mg indicates that the fabric has good abrasion resistance.

[0048] 6. Antibacterial property

[0049] Antibacterial property is a measure of the fabric's ability to inhibit bacterial growth.

[0050] (1) Method: According to the standard of GB / T 20944.3-2008, use the oscillation method to test the antibacterial rates of the fabric against Escherichia coli, Staphylococcus aureus, and Candida albicans;

[0051] (2) Standard: The antibacterial rate ≥ 70% indicates that the fabric has antibacterial property; the antibacterial rate ≥ 90% indicates that the fabric has good antibacterial property. II. Specific embodiments

[0053] Example 1:

[0054] (1) Mix 70% polyester fiber, 20% hemp fiber, and 10% viscose fiber;

[0055] (2) Perform plasma treatment on the mixed fibers, use oxygen as the treatment gas, the treatment time is 5 min, and the power is 150 W;

[0056] (3) Spin the plasma-treated fibers. The warp is made of a twisted yarn of polyester fiber and hemp fiber, and the weft is made of viscose fiber;

[0057] (4) It is woven with a plain weave, with a warp density of 50 threads / cm and a weft density of 30 threads / cm;

[0058] (5) The woven fabric is pre-shaped at a temperature of 180 °C for 3 minutes. Subsequently, polyethylene glycol (PEG) is used for moisture absorption and sweat wicking finishing.

[0059] Example 2:

[0060] (1) Mix 80% polyester fiber, 15% hemp fiber, and 5% viscose fiber;

[0061] (2) The mixed fibers are treated with plasma, using oxygen as the treatment gas, with a treatment time of 3 minutes and a power of 100 W;

[0062] (3) The plasma-treated fibers are spun. The warp yarn uses a twisted yarn of polyester fiber and hemp fiber, and the weft yarn uses viscose fiber;

[0063] (4) It is woven with a plain weave, with a warp density of 55 threads / cm and a weft density of 35 threads / cm;

[0064] (5) The woven fabric is pre-shaped at a temperature of 170 °C for 4 minutes. Subsequently, polyethylene glycol (PEG) is used for moisture absorption and sweat wicking finishing.

[0065] Example 3:

[0066] (1) Mix 85% polyester fiber, 10% hemp fiber, and 5% viscose fiber;

[0067] (2) The mixed fibers are treated with plasma, using oxygen as the treatment gas, with a treatment time of 7 minutes and a power of 180 W;

[0068] (3) The plasma-treated fibers are spun. The warp yarn uses a twisted yarn of polyester fiber and hemp fiber, and the weft yarn uses viscose fiber;

[0069] (4) It is woven with a plain weave, with a warp density of 60 threads / cm and a weft density of 35 threads / cm;

[0070] (5) The woven fabric is pre-shaped at a temperature of 190 °C for 2 minutes. Subsequently, polyethylene glycol (PEG) is used for moisture absorption and sweat wicking finishing.

[0071] Comparative Example 1:

[0072] The fiber ratio of this comparative example is basically the same as that of Example 1, and the difference lies in that in the preparation process, plasma treatment is not carried out.

[0073] Comparative Example 2:

[0074] The preparation process of this comparative example is basically the same as that of Example 1, except that in the fiber ratio, 100% polyester fiber is used.

[0075] Comparative Example 3:

[0076] This comparative example uses 100% polyester fiber and does not perform plasma treatment in the preparation process.

[0077] III. Result Analysis

[0078] First, the contact angle, water absorption time, air permeability, abrasion resistance, and antibacterial performance of the fabrics prepared in Examples 1 to 3 and Comparative Examples 1 to 3 of the present invention were measured, and the measurement results are shown in Table 2.

[0079] Table 2 Physical and Functional Performance Test Results of All-Polyester Random Linen Fabrics

[0080] Index Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Contact Angle 28° 32° 35° 65° 70° 75° Water Absorption Time 180 milliseconds 200 milliseconds 220 milliseconds 350 milliseconds 400 milliseconds 450 milliseconds Breathability 120mm / s 110mm / s 105mm / s 80mm / s 70mm / s 60mm / s Wear Resistance Complies Complies Complies Complies Complies Complies Antibacterial Performance Complies Complies Complies Complies Complies Complies

[0081] The contact angles of Examples 1, 2, and 3 of the present invention are 28°, 32°, and 35° respectively, all less than 40°, while the contact angles of Comparative Examples 1 to 3 are much higher than those of Examples 1 to 3, indicating that the fabrics treated with plasma have better hydrophilicity, while the fabrics not treated with plasma or only using 100% polyester fiber have poor hydrophilicity.

[0082] Furthermore, the water absorption times of Examples 1, 2, and 3 of the present invention are 180 milliseconds, 200 milliseconds, and 220 milliseconds respectively, all much lower than those of Comparative Examples 1 to 3. Among them, the water absorption time of Example 1 is less than 200 milliseconds, indicating that the moisture absorption and sweat discharge performance of the fabrics treated with plasma and optimized fiber ratio is significantly improved. In particular, the fabric prepared in Example 1 has good moisture absorption and sweat discharge performance, while the fabrics not treated with plasma or only using 100% polyester fiber have poor moisture absorption and sweat discharge performance.

[0083] The air permeabilities of Examples 1, 2, and 3 of the present invention are 12o mm / s, 110 mm / s, and 105 mm / s respectively, all higher than those of Comparative Examples 1 to 3, indicating that the fabrics treated with plasma and optimized fiber ratio have better air permeability, while the fabrics not treated with plasma or only using 100% polyester fiber have poor air permeability.

[0084] In addition, the abrasion resistance and antibacterial performance of the fabrics prepared in Examples 1 to 3 and Comparative Examples 1 to 3 of the present invention meet the standard requirements, indicating that plasma treatment and fiber ratio optimization have little effect on the abrasion resistance and antibacterial performance of the fabrics.

[0085] Then, the present invention measures the skin-friendliness of the fabrics prepared in Examples 1 to 3 and Comparative Examples 1 to 3, and evaluates the softness, itching sensation, and stuffiness sensation of each fabric respectively. The evaluation results are shown in Table 3.

[0086] Table 3 Skin-friendliness Evaluation Results

[0087]

[0088] As can be seen from Table 3, compared with the comparative examples, the fabrics prepared in the examples of the present invention have higher softness scores. Among them, the softness score of Example 1 is the highest, indicating that the plasma treatment and the optimization of fiber ratio have a positive effect on improving the softness of the fabric.

[0089] Furthermore, the softness score of Comparative Example 1 of the present invention is 3.1, which is significantly lower than that of Examples 1 to 3, indicating that the fabric without plasma treatment has a hard handfeel. In addition, the softness scores of Comparative Example 2 and Comparative Example 3 of the present invention are lower than that of Comparative Example 1, indicating that the fabric made of 100% polyester fiber has a very hard handfeel.

[0090] In terms of itching sensation, there are significant differences in the fabrics prepared in Examples 1 to 3 and Comparative Examples 1 to 3 of the present invention. Among them, the itching sensation score of Example 1 is the highest, and the itching sensation scores of Example 2 and Example 3 are slightly lower, but still within an acceptable range, indicating that the fabrics prepared in Examples 1 to 3 have almost no itching sensation.

[0091] However, the itching sensations of Comparative Examples 1 to 3 are significantly lower than those of Examples 1 to 3, especially Comparative Examples 2 and 3, indicating that the fabrics without plasma treatment may cause slight itching sensations, while the fabrics made of 100% polyester fiber may cause stronger itching sensations.

[0092] Compared with Comparative Examples 1 to 3, Examples 1 to 3 of the present invention have higher scores in terms of stuffiness sensation. Especially for Example 1, the score is 4.1, indicating that the fabrics prepared in Examples 1 to 3 have good air permeability and will not feel stuffy when worn. However, the stuffiness sensations of Comparative Examples 1 to 3 are significantly lower than those of Examples 1 to 3, especially Comparative Examples 2 and 3, indicating that the fabrics without plasma treatment have poor air permeability and may feel stuffy when worn, while the fabrics made of 100% polyester fiber have very poor air permeability and may feel extremely stuffy when worn.

[0093] Therefore, Example 1 of the present invention has the highest scores in terms of softness, itching sensation, and stuffiness sensation, and shows the best performance, indicating that the ratio of 70% polyester fiber, 20% hemp fiber, and 10% viscose fiber, combined with plasma treatment, can obtain the best skin-friendliness. Plasma treatment can significantly improve the softness of the fabric, reduce the itching sensation and stuffiness sensation; while adding hemp fiber and viscose fiber can further improve the softness and skin-friendliness of the fabric.

[0094] In summary, through plasma treatment and fiber ratio optimization, the present invention significantly improves the hydrophilicity, moisture absorption and sweat discharge performance, breathability and skin-friendliness of the all-polyester random linen fabric, meeting the needs of modern consumers for high-quality fabrics. The fiber ratio and process parameters of Example 1 of the present invention can obtain the best fabric performance and have broad application prospects.

[0095] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent in such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0096] The above are only the preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are all included in the protection scope of the present invention.

Claims

1. A preparation process of a fully polyester random linen fabric with moisture absorption and quick drying properties, characterized in that, It is made of raw materials including the following mass percentages: 70 - 85% of polyester fiber, 10 - 20% of hemp fiber, and the balance is viscose fiber; The preparation process includes the following steps: S1. Fiber mixing: Mix 70 - 85% of polyester fiber, 10 - 20% of hemp fiber, and the balance of viscose fiber; S2. Plasma treatment: Perform plasma treatment on the mixed fibers, use oxygen or argon as the treatment gas, the treatment time is 1 - 10 min, and the power is 50 - 200 W; S3. Spinning: Spin the fibers after plasma treatment. The warp yarn uses a twisted yarn of polyester fiber and hemp fiber, and the weft yarn uses viscose fiber; S4. Weaving: Weave using a plain weave, the warp density is 40 - 60 threads / cm, and the weft density is 20 - 40 threads / cm; S5. Post-treatment: Perform post-treatment on the woven fabric, including pre-setting and moisture absorption and sweat discharge finishing, to obtain a fully polyester random hemp fabric with moisture absorption and quick drying properties.

2. The preparation process of the all-polyester random linen fabric with moisture absorption and quick drying as described in claim 1, characterized in that, In step S2, the plasma treatment uses oxygen as the treatment gas, the treatment time is 3 - 7 min, and the power is 100 - 150 W.

3. The preparation process of the all-polyester random linen fabric with moisture absorption and quick drying as described in claim 1, characterized in that, In step S4, the warp density of the weaving process is 45 - 55 threads / cm, and the weft density is 25 - 35 threads / cm.

4. The preparation process of the all-polyester random linen fabric with moisture absorption and quick drying as described in claim 1, characterized in that, In step S5, the moisture absorption and sweat discharge finishing is carried out by surface treatment with a moisture absorption and sweat discharge finishing agent, and the moisture absorption and sweat discharge finishing agent is polyethylene glycol (PEG).

5. The preparation process of the all-polyester random linen fabric with moisture absorption and quick drying as described in claim 1, characterized in that, The contact angle of the fully polyester random hemp fabric is less than 30°, and the water absorption time is less than 200 milliseconds.

6. The preparation process of the all-polyester random linen fabric with moisture absorption and quick drying as described in claim 1, characterized in that, Hydroxyl or carboxyl hydrophilic groups are introduced on the surface of the fibers after plasma treatment.

7. The preparation process of the all-polyester random linen fabric with moisture absorption and quick drying as described in claim 1, characterized in that, The antibacterial property of the fabric meets the requirements of the national standard GB / T20944.3 - 2008.

8. The preparation process of the all-polyester random linen fabric with moisture absorption and quick drying as described in claim 1, characterized in that, In step S5, the preparation process of the fully polyester random hemp fabric further includes adding an antistatic finishing agent in the post-treatment, and the antistatic finishing agent is a polyether ester antistatic agent.

9. The fully polyester random linen fabric with moisture absorption and quick drying as described in claim 1 is characterized in that: It is made of raw materials including the following mass percentages: 70 - 85% of polyester fiber, 10 - 20% of hemp fiber, and the balance is viscose fiber.

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