A full cotton moisture absorption and quick drying fabric and a preparation method thereof

Abstract

The application relates to the technical field of fabrics, and particularly discloses a full-cotton moisture-absorbing and quick-drying fabric and a preparation method thereof. The preparation method comprises the following steps: S1, taking cotton yarn, carrying out dyeing treatment by adding active dyes after boiling and bleaching, then carrying out hydrophilic treatment by adding a hydrophilic agent, drying the yarn to obtain hydrophilic cotton yarn, and reserving the hydrophilic cotton yarn; taking cotton yarn, carrying out dyeing treatment by adding active dyes after boiling and bleaching, then carrying out waterproof treatment by adding a waterproof agent, drying the yarn to obtain waterproof cotton yarn, and reserving the waterproof cotton yarn; S2, covering the hydrophilic cotton yarn outside the waterproof cotton yarn to obtain a covered structure yarn; and S3, weaving a plain knit fabric by using the covered structure yarn through a circular knitting machine. The hydrophilic cotton yarn and the waterproof cotton yarn have different counts, and the ratio of the counts is 0.25-1. The special covered structure yarn plain fabric is woven by using the hydrophilic cotton yarn with a lower count to cover the waterproof cotton yarn with a higher count, so that the advantages of softness and air permeability of single-layer cotton knitted fabric are retained, and the moisture-absorbing performance is good.

Description

Technical Field

[0001] This invention relates to the technical field of fabrics, specifically disclosing a cotton moisture-wicking and quick-drying fabric and its preparation method. Background Technology

[0002] Existing methods for preparing moisture-wicking and quick-drying knitted fabrics primarily focus on physical and chemical modifications to enhance wicking effect from the raw material perspective. Physical modification involves altering the shape of the spinneret to increase fiber surface area, but this is unsuitable for natural fibers and results in poor wearing comfort. Chemical modification, on the other hand, introduces hydrophilic groups, but this is costly. Structurally, the main methods are single-layer and double-layer weaves. Single-layer structures still require the interweaving of irregularly shaped fibers with hydrophilic cotton, utilizing the wicking effect principle, but comfort is generally average. Double-layer weaves typically utilize differential capillary action and gradient wetting effects to develop moisture-wicking and quick-drying fabrics, but these are relatively thick and have poor breathability. Dot printing can achieve one-sided waterproofing and unidirectional moisture wicking, but this deteriorates the fabric's feel and makes it stiffer.

[0003] Cotton is highly absorbent, but its physical form changes during the absorption process. The flattened cavities expand as they absorb moisture, causing water vapor to accumulate between the skin and the inner layer of the fabric, resulting in discomfort. Waterproofing cotton yarn reduces its water absorption capacity. Maintaining the breathability and skin-friendly properties of single-layer cotton fabric while retaining its softness for printing purposes presents a significant challenge in creating all-cotton single-layer moisture-wicking and quick-drying knitwear. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cotton moisture-wicking and quick-drying fabric and its preparation method.

[0005] This invention utilizes 100% cotton yarn for its moisture-wicking and quick-drying fabric. Hydrophilic and hydrophobic treatments, along with varying yarn counts, increase the differences in moisture absorption among the cotton fibers. The core cotton yarn undergoes a waterproofing treatment, mitigating the inherent high moisture regain of cotton and achieving a functional effect completely opposite to that of the outer hydrophilic cotton yarn. By designing different ratios between the outer hydrophilic cotton yarn and the waterproof cotton yarn, optimal moisture-wicking and quick-drying properties are achieved. Too high a proportion of hydrophilic cotton yarn prevents rapid evaporation of moisture, affecting the drying rate, while too high a proportion of waterproof cotton yarn results in poor absorbency. The low-count hydrophilic cotton yarn on the outside facilitates moisture absorption, while the waterproof cotton yarn in the middle creates a capillary effect, rapidly carrying moisture to the outer cotton yarn. This process of wetting, absorbing, diffusing, and evaporating prevents moisture buildup in the inner layers of the fabric, avoiding discomfort on the skin. Furthermore, the outer layer of the covering yarn is wrapped around the core yarn, forming an incomplete cover. Hydrophilic cotton yarn is more suitable as the outer covering than as the core yarn because its outward protrusions and increased contact points make it easier to absorb moisture. Moisture also evaporates more easily when it reaches the fabric surface. Thus, this solution's all-cotton moisture-wicking and quick-drying fabric effectively avoids the bulkiness of double-sided fabrics that require specific weaving structures to achieve moisture-wicking and quick-drying properties, making it suitable for hot summer wear.

[0006] The specific technical solution adopted is as follows:

[0007] On one hand, this invention discloses a method for preparing a pure cotton moisture-wicking and quick-drying fabric, comprising the following steps:

[0008] S1. Yarn pretreatment

[0009] Take cotton grease, boil and bleach it, add reactive dyes for dyeing, then add hydrophilic auxiliaries for hydrophilic treatment, and wind the dry yarn into a bobbin to obtain hydrophilic cotton yarn for later use.

[0010] Take cotton grease, boil and bleach it, add reactive dyes for dyeing, then add waterproofing auxiliaries for waterproofing, and wind the dry yarn into a bobbin to obtain waterproof cotton yarn for later use.

[0011] S2. Preparation of covered structure yarn

[0012] A hydrophilic cotton yarn is wrapped around a waterproof cotton yarn to obtain a wrapped structure yarn, wherein the count of the hydrophilic cotton yarn is different from that of the waterproof cotton yarn, and the ratio between the two is 0.25 to 1.

[0013] S3, woven fabric

[0014] The covered structure yarn is woven into a plain knitted fabric on a circular knitting machine, then washed to remove oil stains, and hydrophilic soft oil is added for setting to obtain a pure cotton moisture-wicking and quick-drying fabric.

[0015] Preferably, in step S3, the ratio of the amount of hydrophilic cotton yarn to waterproof cotton yarn in the fabric is (60-80):(20-40).

[0016] Preferably, the twist count of the hydrophilic cotton yarn wrapped around the waterproof cotton yarn in the covering structure yarn is 200 to 600 twists per meter.

[0017] Preferably, the twist count of the hydrophilic cotton yarn wrapped around the waterproof cotton yarn is X, and the ratio of the count of the hydrophilic cotton yarn to the count of the waterproof cotton yarn is Y, where X / Y = 18.75 to 25.

[0018] Preferably, the hydrophilic cotton yarn has a count of 20S to 80S, and the waterproof cotton yarn has a count of 80S.

[0019] Preferably, the hydrophilic additives in S1 include: 0.1-3% hydrophilic agent and 0.1-1.5% penetrant.

[0020] Preferably, the waterproofing additive in S1 comprises: 1-20% waterproofing agent, 0.1-3% crosslinking agent, and 0.01-0.1% acetic acid.

[0021] Preferably, the hydrophilic and waterproof treatments in S1 involve adding corresponding auxiliaries to the yarn dyeing machine and treating it at 40–60°C for 10–60 minutes.

[0022] Preferably, the hydrophilic cotton yarn in S1 is made of fine cotton compact spun yarn as the greige yarn, and the waterproof cotton yarn is made of fine cotton compact spun yarn as the greige yarn.

[0023] On the other hand, the present invention discloses a cotton moisture-wicking and quick-drying fabric. The fabric is a plain knitted fabric woven from covered yarns. The covered yarn structure includes a core yarn and a covering yarn. The covering yarn is spirally wound around the core yarn and forms an incomplete cover. The core yarn is waterproof cotton yarn, and the covering yarn is hydrophilic cotton yarn. The count of the hydrophilic cotton yarn is different from that of the waterproof cotton yarn, and the ratio between the two is 0.25 to 1.

[0024] Compared with the prior art, the present invention has at least the following beneficial effects:

[0025] This invention uses all-cotton yarn to weave the fabric, avoiding the use of polyester. Compared with the preparation of ordinary moisture-wicking and quick-drying fabrics on the market, it is more environmentally friendly. The dyeing and processing are carried out at lower temperatures, using only a few high-temperature processes to reduce energy consumption. Moreover, all-cotton fabric is more skin-friendly. By using a special covering structure yarn of lower-count hydrophilic cotton yarn covering higher-count waterproof cotton yarn for plain weave, it retains the softness and breathability of single-layer cotton knitted fabric while having good moisture-wicking performance, making it especially suitable for wearing in hot summer environments. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to specific embodiments.

[0027] The hydrophilic agent used in the following examples and comparative examples is a quaternary ammonium salt modified polysiloxane, the penetrant is a nonionic surfactant, the waterproofing agent is an acrylate copolymer-based fluorine-free waterproofing agent, and the crosslinking agent is a mixture of end-capped polyurethane and fatty alcohol polyoxyethylene ether, all of which are commercially available products.

[0028] Example 1

[0029] A 100% cotton moisture-wicking and quick-drying fabric, the preparation method of which is as follows:

[0030] S1. Yarn pretreatment

[0031] Take 20S fine cotton compact Siro-spun greige yarn, after boiling and bleaching, add 2 owf% of reactive dye for dyeing treatment, then add 2% hydrophilic agent and 0.5% penetrant for hydrophilic treatment at 40℃ for 30 min, and dry the yarn at 100℃ and wind it into a bobbin to obtain hydrophilic cotton yarn for later use.

[0032] Take 80S fine cotton compact spun yarn, after boiling and bleaching, add 2 owf% of reactive dye for dyeing treatment, then add 10% waterproofing agent, 2% crosslinking agent and 0.05% acetic acid, and perform waterproofing treatment at 40℃ for 30 min. Dry the yarn at 130℃ and wind it into a bobbin to obtain waterproof cotton yarn for later use.

[0033] S2. Preparation of covered structure yarn

[0034] Hydrophilic cotton yarn is wrapped around waterproof cotton yarn at 400 twists / meter to obtain a wrapped structure yarn.

[0035] S3, woven fabric

[0036] The covered structure yarn is woven into a plain knitted fabric on a circular knitting machine, the oil stains are washed away, and 5g / L of hydrophilic soft oil is added for finishing to obtain a cotton moisture-wicking and quick-drying fabric. The proportion of hydrophilic cotton yarn is about 80%, and the proportion of waterproof cotton yarn is about 20%.

[0037] Example 2

[0038] A 100% cotton moisture-wicking and quick-drying fabric, the preparation method of which is as follows:

[0039] S1. Yarn pretreatment

[0040] Take 30S fine cotton compact Siro-spun greige yarn, after boiling and bleaching, add 2 owf% of reactive dye for dyeing treatment, then add 2% hydrophilic agent and 0.5% penetrant for hydrophilic treatment at 40℃ for 30 min, and dry the yarn at 100℃ and wind it into a bobbin to obtain hydrophilic cotton yarn for later use.

[0041] Take 80S fine cotton compact spun yarn, after boiling and bleaching, add 2 owf% of reactive dye for dyeing treatment, then add 10% waterproofing agent, 2% crosslinking agent and 0.05% acetic acid, and perform waterproofing treatment at 40℃ for 30 min. Dry the yarn at 130℃ and wind it into a bobbin to obtain waterproof cotton yarn for later use.

[0042] S2. Preparation of covered structure yarn

[0043] Hydrophilic cotton yarn is wrapped around waterproof cotton yarn at 500 twists / meter to obtain a wrapped structure yarn.

[0044] S3, woven fabric

[0045] The covered structure yarn is woven into a plain knit fabric on a circular knitting machine, the oil stains are washed away, and 5g / L of hydrophilic soft oil is added for finishing to obtain a cotton moisture-wicking and quick-drying fabric. The proportion of hydrophilic cotton yarn is about 73%, and the proportion of waterproof cotton yarn is about 27%.

[0046] Example 3

[0047] A 100% cotton moisture-wicking and quick-drying fabric, the preparation method of which is as follows:

[0048] S1. Yarn pretreatment

[0049] Take 40S fine cotton compact Siro-spun greige yarn, after boiling and bleaching, add 2 owf% of reactive dye for dyeing treatment, then add 2% hydrophilic agent and 0.5% penetrant for hydrophilic treatment at 40℃ for 30 min, and dry the yarn at 100℃ and wind it into a bobbin to obtain hydrophilic cotton yarn for later use.

[0050] Take 80S fine cotton compact spun yarn, after boiling and bleaching, add 2 owf% of reactive dye for dyeing treatment, then add 10% waterproofing agent, 2% crosslinking agent and 0.05% acetic acid, and perform waterproofing treatment at 40℃ for 30 min. Dry the yarn at 130℃ and wind it into a bobbin to obtain waterproof cotton yarn for later use.

[0051] S2. Preparation of covered structure yarn

[0052] Hydrophilic cotton yarn is wrapped around waterproof cotton yarn at 600 twists / meter to obtain a wrapped structure yarn.

[0053] S3, woven fabric

[0054] The covered structure yarn is woven into a plain knit fabric on a circular knitting machine, the oil stains are washed away, and 5g / L of hydrophilic soft oil is added for finishing to obtain a cotton moisture-wicking and quick-drying fabric. The proportion of hydrophilic cotton yarn is about 67%, and the proportion of waterproof cotton yarn is about 33%.

[0055] Comparative Example 1

[0056] A 16S / 80S fine cotton-wrapped waterproof plain weave fabric, the preparation method of which is as follows:

[0057] S1. Yarn pretreatment

[0058] Take 16S fine cotton compact Siro-spun greige yarn, after boiling and bleaching, add 2 owf% of reactive dye for dyeing treatment, then add 2% hydrophilic agent and 0.5% penetrant for hydrophilic treatment at 40℃ for 30 min, and dry the yarn at 100℃ and wind it into a bobbin to obtain hydrophilic cotton yarn for later use.

[0059] Take 80S fine cotton compact spun yarn, after boiling and bleaching, add 2 owf% of reactive dye for dyeing treatment, then add 10% waterproofing agent, 2% crosslinking agent and 0.05% acetic acid, and perform waterproofing treatment at 40℃ for 30 min. Dry the yarn at 130℃ and wind it into a bobbin to obtain waterproof cotton yarn for later use.

[0060] S2. Preparation of covered structure yarn

[0061] Hydrophilic cotton yarn is wrapped around waterproof cotton yarn at 400 twists / meter to obtain a wrapped structure yarn.

[0062] S3, woven fabric

[0063] The covered structure yarn is woven into a plain knit fabric on a circular knitting machine, the oil stains are washed away, and 5g / L of hydrophilic soft oil is added for finishing to obtain 16S / 80S fine cotton-covered waterproof fine cotton plain knit fabric. The proportion of hydrophilic cotton yarn is about 85%, and the proportion of waterproof cotton yarn is about 15%.

[0064] Comparative Example 2

[0065] A 40S hydrophilic cotton-covered 50D / 48F polyester plain weave fabric, the preparation method of which is as follows:

[0066] S1. Yarn pretreatment

[0067] Take 40S fine cotton compact Siro-spun greige yarn, after boiling and bleaching, add 2 owf% of reactive dye for dyeing treatment, then add 2% hydrophilic agent and 0.5% penetrant for hydrophilic treatment at 40℃ for 30 min, and dry the yarn at 100℃ and wind it into a bobbin to obtain hydrophilic cotton yarn for later use.

[0068] Take 50D / 48F polyester yarn, remove oil, add disperse dye for dyeing treatment, and wind the dry yarn into a bobbin to obtain waterproof polyester yarn for later use;

[0069] S2. Preparation of covered structure yarn

[0070] Hydrophilic cotton yarn is wrapped around waterproof polyester yarn at 600 twists / meter to obtain a wrapped yarn structure.

[0071] S3, woven fabric

[0072] The covered structure yarn is woven into a plain knit fabric on a circular knitting machine, the oil stains are washed away, and 5g / L of hydrophilic soft oil is added for finishing to obtain a 40S hydrophilic fine cotton-covered 50D / 48F polyester plain knit fabric. The hydrophilic cotton yarn accounts for about 75% and the polyester yarn accounts for about 15%.

[0073] Comparative Example 3

[0074] A fabric made of 80S / 20S waterproof cotton yarn wrapped with hydrophilic cotton yarn is prepared by the following method:

[0075] S1. Yarn pretreatment

[0076] Take 80S fine cotton compact spun yarn, after boiling and bleaching, add 2 owf% of reactive dye for dyeing treatment, then add 10% waterproofing agent, 2% crosslinking agent and 0.05% acetic acid, and perform waterproofing treatment at 40℃ for 30 min. Dry the yarn at 130℃ and wind it into a bobbin to obtain waterproof cotton yarn for later use.

[0077] Take 20S fine cotton compact Siro-spun greige yarn, after boiling and bleaching, add 2 owf% of reactive dye for dyeing treatment, then add 2% hydrophilic agent and 0.5% penetrant for hydrophilic treatment at 40℃ for 30 min, and dry the yarn at 100℃ and wind it into a bobbin to obtain hydrophilic cotton yarn for later use.

[0078] S2. Preparation of covered structure yarn

[0079] Waterproof cotton yarn is wrapped around hydrophilic cotton yarn at 1500 twists / meter to obtain a wrapped yarn structure.

[0080] S3, woven fabric

[0081] The covered structure yarn is woven into a plain knitted fabric on a circular knitting machine, washed to remove oil stains, and then 5g / L of hydrophilic soft oil is added for setting to obtain 80S / 20S waterproof cotton yarn wrapped with hydrophilic cotton yarn fabric. The ratio of hydrophilic cotton yarn to waterproof cotton yarn is approximately 75% and the ratio of waterproof cotton yarn is approximately 25%.

[0082] Performance test results

[0083] Moisture absorption and quick-drying test

[0084] The fabrics prepared in Examples 1-3 and Comparative Example 1 were tested according to GB / T 21655.1-2023 "Evaluation of moisture absorption and quick-drying properties of textiles - Part 1: Single-item combination test method". The results are shown in Table 1 below:

[0085] Table 1. Results of moisture absorption and quick-drying performance tests

[0086]

[0087] According to the performance index classification, all examples meet the moisture-wicking and quick-drying functional indicators specified in the national standard. The fabrics woven in Examples 1-3 all have good moisture-wicking and quick-drying effects, while retaining the advantages of softness and breathability of single-layer cotton knitwear. The dyeing and processing are carried out at lower temperatures, using only a few high-temperature processes to reduce energy consumption. All-cotton yarn is used, avoiding the use of polyester, making it more environmentally friendly and skin-friendly than ordinary moisture-wicking and quick-drying fabrics. In summer, when the body sweats heavily, it can quickly diffuse sweat from the skin to the outer surface of the fabric, reducing discomfort. Among them, Example 1 is superior to Examples 2-3 in terms of overall performance. This is due to the yarn structure presented by the special matching of the yarn count ratio between hydrophilic cotton yarn and waterproof cotton yarn and the twist count of the covering. This results in a better matching of the degree of coverage of the hydrophilic covering yarn on the core yarn and the raised contact points of the hydrophilic cotton yarn, achieving the best state of moisture absorption and conduction evaporation.

[0088] The difference between Comparative Example 1 and Example 1 is that the core yarn has a low count. Although it absorbs water well, it increases the proportion of waterproof cotton yarn, affecting the moisture-wicking ability and resulting in a poorer quick-drying effect. This shows that the reason why the all-cotton moisture-wicking and quick-drying fabric of this solution has good softness, quick-drying and breathability is not only due to the structure of hydrophilic cotton yarn covering waterproof cotton yarn, but also because there are special design requirements for the ratio of the counts of hydrophilic cotton yarn and waterproof cotton yarn.

[0089] The difference between Comparative Example 2 and Example 1 is that polyester yarn is used instead of waterproof cotton yarn. Although its performance just meets the minimum national standard for moisture absorption and quick drying, its water absorption and moisture wicking ability are significantly worse than the all-cotton fabric of Example 1. It sweats more slowly when the body sweats a lot in summer, and the wearing experience is worse. This shows that the all-cotton fabric of this solution is better than the existing polyester-blended fabric.

[0090] Although the proportion of hydrophilic cotton yarn in the fabric woven in Comparative Example 3 is similar to that in Example 2, its covering yarn structure is opposite to that of Example 2. The actual performance in the test was worse than that of Example 2. This may be because the water absorption of the waterproof cotton yarn covering it is poor, which leads to a decrease in the rate of sweat moisture absorption. In addition, the yarn count and twist value result in a large coverage of the waterproof cotton yarn on the outside and a small spiral protrusion, which leads to poor moisture diffusion and evaporation. This shows that the special yarn structure formed by the combination of the yarn count of the hydrophilic cotton yarn and the waterproof cotton yarn and the twist value of the covering in this scheme is crucial to the moisture absorption and quick-drying performance of the woven fabric.

[0091] The technical solution provided by the present invention has been described in detail above. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method for preparing a full cotton moisture absorption and quick drying fabric, characterized in that, It comprises the following steps: S1, yarn pretreatment Take the tight spinning of pure cotton, after boiling and bleaching, add active dye for dyeing treatment, then add hydrophilic agent for hydrophilic treatment, dry yarn winding to get hydrophilic cotton yarn, as a cover yarn for standby; Take the tight spinning of pure cotton, after boiling and bleaching, add active dye for dyeing treatment, then add waterproof agent for waterproof treatment, dry yarn winding to get waterproof cotton yarn, as a core yarn for standby; S2, preparation of covering structure yarn The covering yarn is spirally wound outside the core yarn and forms an incomplete covering to obtain a covering structure yarn, the hydrophilic cotton yarn count and the waterproof cotton yarn count are different, and the ratio of the two is 0.25-1; S3, fabric weaving The covering structure yarn is woven into plain knitted fabric, and the oil stains are washed off, and the hydrophilic soft oil is added for setting to obtain a full cotton moisture absorption and quick drying fabric; The amount of hydrophilic cotton yarn and waterproof cotton yarn in the fabric in S3 is (60-80):(20-40); The twist turns of the hydrophilic cotton yarn wrapped around the waterproof cotton yarn of the covering structure yarn are 200-600 turns per meter.

2. The process for making 100% cotton moisture wicking and quick drying fabric as claimed in claim 1, wherein, The count of the hydrophilic cotton yarn is 20S-80S, and the count of the waterproof cotton yarn is 80S.

3. The process for making 100% cotton moisture wicking and quick drying fabric as claimed in claim 1, wherein, The amount of hydrophilic agent in S1 includes: hydrophilic agent 0.1-3%, penetrant 0.1-1.5%.

4. The process as claimed in claim 1, wherein, The amount of waterproof agent in S1 includes: waterproof agent 1-20%, crosslinking agent 0.1-3%, acetic acid 0.01-0.1%.

5. The process as claimed in claim 1, wherein, The hydrophilic treatment and waterproof treatment in S1 are to add the corresponding agent to the dyeing machine and treat at 40-60℃ for 10-60min.

6. A fully cotton moisture wicking and quick drying fabric, characterized in that, It is prepared by the preparation method of the full cotton moisture absorption and quick drying fabric according to any one of claims 1-5, the fabric is a plain knitted fabric woven by a covering structure yarn, the covering yarn structure comprises a core yarn and a covering yarn, the covering yarn is spirally wound outside the core yarn and forms an incomplete covering, the core yarn is a waterproof cotton yarn, the covering yarn is a hydrophilic cotton yarn, the count of the hydrophilic cotton yarn and the waterproof cotton yarn is different, and the ratio of the two is 0.25-1.

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