Intelligent quick-drying fabric

Abstract

The intelligent quick-dry fabric comprises a fabric body, the fabric body comprises a yarn A and a yarn B, the yarn A is the yarn with the moisture absorption deformation characteristic, and the yarn B is the yarn with the deformation amount smaller than or equal to 5% after moisture absorption; the fabric body comprises a plurality of basic circulation unit structures, in one basic circulation unit structure, yarn A is woven to form a complete A coil row, the A coil row comprises A coils, yarn Bm and yarn Bm + n are interwoven around the yarn A, the yarn Bm is woven to form a Bm coil row, the Bm coil row comprises Bm coils, the yarn Bm + n is woven to form a yarn Bm + n coil row, and the yarn Bm + n is woven to form a yarn Bm + n coil row. The yarn Bm + n coil courses comprise yarn Bm + n coils, n-1 coil courses are arranged between the Bm coil courses and the Bm + n coil courses, and the Bm coil courses and the Bm + n coil courses are mutually strung and looped on at least one coil wale. The air permeability is improved through moisture absorption change, and the quick-drying effect is achieved.

Description

Technical Field

[0001] The present invention relates to a fabric, specifically an intelligent quick-drying fabric with good wet dimensional stability and breathability that varies with the moisture content of the fabric. Background Art

[0002] With the improvement of living standards, consumers have higher and higher requirements for the comfort of clothing. Traditional yarns and fabrics are often unsatisfactory in terms of moisture absorption and sweat discharge performance. Although it is possible to achieve moisture absorption and sweat discharge in the traditional sense by changing the cross-section of the yarn, increasing the number of yarn fibers or adding moisture absorption and sweat discharge aids, the fabric can quickly absorb the sweat on the human body surface, but it does not increase the breathability and moisture permeability of the fabric as the sweat is absorbed until saturation. It is easy to make the wearer feel stuffy and uncomfortable during exercise or in a hot environment.

[0003] Patent CN 118345551 A discloses a moisture-absorbing and quick-drying fabric. The fabric includes a face yarn and a first ground yarn. The face yarn and the first ground yarn are woven to form a covered plain weave. The face yarn is a blended yarn made of cotton fibers and hollow polyester fibers, and the first ground yarn is an elastic yarn. The fabric obtained by weaving the first ground yarn and the face yarn has good elasticity. At the same time, it is woven with a blended yarn of hollow polyester fibers and first pure cotton fibers. The first pure cotton fiber has strong moisture absorption. It is a porous substance with irregular internal molecular arrangement and a large number of hydrophilic structures in the molecules. The porous polyester fiber is a new type of hollow fiber with a hollow structure and groove channels, having a sponge-like intricate and continuous hole and hollow structure and groove channels. The hollow structure enhances the capillary effect of the fabric when absorbing water. This patent utilizes the high moisture absorption of cotton and porous polyester fibers to absorb sweat to the fabric surface, but does not increase the breathability and moisture permeability of the fabric during the process of absorbing sweat. When the sweat output of the human body further increases, the excess sweat cannot evaporate quickly, resulting in a stuffy and uncomfortable feeling.

[0004] In recent years, great progress has been made in materials science, providing technical support for the research and development of intelligent quick-drying fabrics with good wet dimensional stability and breathability that varies with the moisture content of the fabric. This fabric can better absorb the sweat discharged by the human body. As the sweat is absorbed, the length of the moisture-absorbing deformed yarn in the fabric gradually increases, and some voids in the fabric open, increasing the breathability and moisture permeability of the fabric, and the moisture can be discharged from the skin surface faster, greatly improving the wearing comfort. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides an intelligent quick-drying fabric that produces elongation changes after moisture absorption and improves the drying efficiency.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] An intelligent quick-drying fabric, comprising a fabric body, the fabric body being woven from at least two yarns with different properties including yarn A and yarn B, yarn A being a yarn with moisture absorption and deformation characteristics, and yarn B being a yarn with a deformation amount ≤ 5% after moisture absorption;

[0008] The fabric body includes a number of basic repeating unit structures. Within one basic repeating unit structure, yarn A is woven to form a complete row of A loops. The row of A loops contains A loops, and yarn B is interwoven around yarn A m and yarn B m+n , yarn B m is woven to form a row of B m loops. The row of B m loops contains B m loops. Yarn B m+n is woven to form a row of yarn B m+n loops. The row of yarn B m+n loops contains yarn B m+n loops. The row of B m loops and the row of B m+n loops are separated by n - 1 rows of loops. The row of B m loops and the row of B m+n loops are strung together in at least one column of loops to form a loop. Both m and n are natural numbers greater than 0.

[0009] As a further improvement, the row of B m loops and the row of B m+n loops are strung together in at least two columns of loops. The distance between two adjacent columns of strung-together loops is k columns of loops, so that yarn B m and yarn B m+n form a rectangular frame structure, where the width of the rectangular frame structure is 0 < n - 1 ≤ 10 and the length is 0 < k ≤ 20.

[0010] As a further improvement, the elongation rate of yarn A in the fiber length direction after moisture absorption is 1% - 20%, and there is almost no elongation in the diameter direction, and it returns to the initial length after drying.

[0011] As a further improvement, the proportion of the amount of yarn A to the total amount of fabric body yarns is less than or equal to 40%, and the proportion of the amount of yarn B to the total amount of fabric body yarns is greater than or equal to 60%.

[0012] As a further improvement, yarn B is any one or a combination of polyester fiber, polyamide 66 fiber, polyamide 6 fiber, modified polyester fiber, polypropylene fiber, cotton, lyocell, and modal.

[0013] As a further improvement, after the fabric body absorbs moisture, the dimensional change rate is less than 8%.

[0014] As a further improvement, the fabric body is a knitted fabric.

[0015] As a further improvement, the fabric body further includes an elastic yarn C, and the elastic yarn C is integrally woven with the yarn A and the yarn B.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] By jointly weaving a yarn that elongates and changes after absorbing moisture and a yarn that does not deform after absorbing moisture, when the fabric absorbs moisture, some coils of the yarn A deform according to the change in the moisture content of the fabric, automatically adjusting the air permeability of the fabric; the yarn B plays a role in stabilizing the fabric size in the wet state of the fabric. When the fabric changes from the "dry - wet - dry" state, as the moisture content of the fabric increases, the length of the yarn A with moisture absorption and deformation characteristics becomes longer, and the diameter remains almost unchanged. The unfilled coefficient of the structure formed by the yarn A becomes larger, and the air permeability increases, quickly discharging the water vapor on the surface of the human skin; as the moisture content of the fabric decreases, the length of the yarn A becomes shorter, the diameter remains unchanged, the unfilled coefficient of the structure formed by the yarn A becomes smaller, the air permeability decreases, and the loss of human body temperature is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the tissue structure of the present invention under dry conditions;

[0019] Figure 2 It is a schematic diagram of the tissue structure of the present invention after absorbing moisture;

[0020] Figure 3 It is an effect diagram of the present invention under dry conditions;

[0021] Figure 4 It is an effect diagram of the present invention after absorbing moisture;

[0022] Figure 5 It is a schematic diagram of the air permeability curve of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following details the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0024] In the description of the present invention, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection. It may be a mechanical connection or an electrical connection. It may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] As Figure 1 and 2 shown, an intelligent quick-drying fabric includes a fabric main body, and the fabric main body is woven from at least two different-performance yarns including yarn A and yarn B. Yarn A is a yarn with moisture absorption and deformation characteristics, and yarn B is a yarn that does not deform after moisture absorption. Yarn B plays a role in stabilizing the fabric size after the fabric absorbs moisture, while yarn A makes the gaps larger after the fabric absorbs moisture and becomes longer, increasing air permeability and accelerating the water evaporation effect to achieve the purpose of quick drying.

[0027] The fabric main body includes a number of basic cyclic unit structures and is composed of a number of basic cyclic unit structures. Within one basic cyclic unit structure, yarn A is woven to form a complete row of A loops 5, and the row of A loops 5 contains A loops. Yarn B is interwoven around yarn A m and yarn B m+n , yarn B m is woven to form row of B m loops 4, and the row of B m loops 4 contains B m loops. Yarn B m+n is woven to form yarn Bm+n Wale course 6, yarn B m+n Wale course 6 contains yarn B m+n Loop, B m Wale course and B m+n There are n - 1 wale courses between wale courses, B m Wale course 4 and B m+n Wale courses 6 are looped together in at least one wale, and both m and n are natural numbers greater than 0. Yarn A cannot be knitted alone to form a wale course. For example, in a basic loop unit structure, there are 3 loops in a wale course, and when knitting, yarn A only forms 2 loops or 1 loop instead of knitting all 3 loops. While yarn B completely knits to form a wale course.

[0028] The said B m Wale course and B m+n Wale courses are looped together in at least two wales, and the adjacent two wales where the loops are looped together are k wales apart, so that yarn B m and yarn B m+n form a rectangular frame structure, where the width of the rectangular frame structure is 0 < n - 1 ≤ 10 and the length is 0 < k ≤ 20. As Figure 1 and 2 shown, for 4 wales and 3 wale courses, yarn B m and yarn B m+n are looped together, thus forming an approximately rectangular frame structure up, down, left and right. Yarn A is looped together with the middle two wales.

[0029] The elongation rate of the said yarn A in the fiber length direction after moisture absorption is 1% - 20%, and there is almost no elongation in the diameter direction, and it returns to the initial length after drying.

[0030] The proportion of the usage amount of yarn A to the total usage amount of the main body yarn of the fabric is less than or equal to 40%, and the proportion of the usage amount of yarn B to the total usage amount of the main body yarn of the fabric is greater than or equal to 60% to ensure the stability of the fabric.

[0031] The said yarn B is any one or a combination of polyester fiber, polyamide 66 fiber, polyamide 6 fiber, modified polyester fiber, polypropylene fiber, cotton, lyocell and modal.

[0032] Through adjusting the usage amounts of yarn A and yarn B, after the main body of the fabric absorbs moisture, the dimensional change rate is less than 8%, that is, even in the case of the maximum water content of the main body of the fabric, the dimensional change rate will not exceed 8%, ensuring that the fabric will not be difficult to return to the initial state due to excessive changes.

[0033] The main body of the fabric is a knitted fabric, meeting the usage requirements.

[0034] In addition, the fabric body further includes an elastic yarn C, which is integrally woven with the yarn A and the yarn B to enhance the elasticity of the fabric body.

[0035] When the fabric absorbs moisture, the coils woven by the yarn A deform according to the change of the moisture content rate of the fabric, and through different elongation lengths, it automatically adjusts the air permeability of the fabric; the yarn B plays a role in stabilizing the fabric size in the wet state of the fabric. When the fabric changes from the "dry - wet - dry" state, the yarn A with the moisture absorption and deformation characteristics becomes longer in length and almost unchanged in diameter as the moisture content rate of the fabric increases. The unfilled coefficient of the structure formed by the yarn A becomes larger, the gaps become larger, the air permeability and moisture permeability increase, and the water vapor on the surface of the human skin can be discharged more quickly. The moisture can be discharged from the skin surface faster, greatly improving the wearing comfort; as the moisture content rate of the fabric decreases, the length of the yarn A becomes shorter, the diameter remains unchanged, the unfilled coefficient of the structure formed by the yarn A becomes smaller, the gaps become smaller, the air permeability decreases, playing a heat preservation role and reducing the loss of the human body temperature.

[0036] The following is illustrated with an example.

[0037] 1. Selection of yarns:

[0038] Yarn A selects the yarn PA6 30D / 12F / 1SD DTY with moisture absorption and deformation characteristics, yarn B selects PA6 50D / 48F / 1FD DTY, and yarn C selects Spandex 30D.

[0039] Yarn A plays a role in moisture absorption and elongation in the fabric, yarn B plays a role in stabilizing the fabric size, and yarn C increases the elasticity and comfort of the fabric.

[0040] 2. Machine type used:

[0041] Weft knitting single - face circular knitting machine, 44G, 34 inches.

[0042] 3. Weaving process

[0043]

[0044] 4. Dyeing and finishing treatment: Washing - Presetting - Overflow dyeing - Dehydration - Post - setting.

[0045] 5. Finished product parameters

[0046] Finished product specification: 152CM * 150GSM.

[0047] Taking the fabric obtained from the example as a sample fabric, the performance of this fabric is tested.

[0048] 1. Disassemble the sample fabric in the reverse knitting direction, conduct wet and dry fiber characterization on the moisture-absorbing and elongation yarn fibers therein, analyze the changes in fiber diameter and length, and refer to Figure 3 and 4 As shown, it is found through comparison that the fiber diameter of the moisture-absorbing and elongation yarn A does not change before and after moisture absorption, and the length elongates by about 10% in the length direction.

[0049] 2. Conduct moisture absorption characterization and air permeability test, and analyze the influence of yarn A on the air permeability performance of the sample fabric under different moisture absorption conditions and its change law through quantitative data.

[0051] Based on the weight of the fabric, according to the formula

[0052] W = n% × W0

[0053] Where:

[0054] W is the water injection volume g,

[0055] n is the moisture content of the fabric %,

[0056] W0 is the fabric weight g,

[0057] After completing the setting of the relative humidity, with the fabric W0 = 1.5 g, the following result table 1 is obtained after completing the setting of the relative humidity condition:

[0058] Table 1

[0059]

[0060] After completing the setting of the relative humidity, the fabric is conditioned for 24 h under the condition of being sealed and stored in a constant temperature and humidity environment, and the moisture in the fabric diffuses evenly.

[0061] According to the national standard for textiles on air permeability test, the air permeability test is carried out on the fabric for which the humidity gradient has been set mainly based on the standard of "GB / T 5453 Determination of air permeability of textiles", and three groups of parallel data are obtained. The results are as follows in Table 2:

[0062] Table 2

[0063]

[0064] Refer to Figure 5 As shown, it is the air permeability test diagram.

[0065] Through examples and experimental examples, referring to the experimental results, the following conclusions are drawn. The design scheme of forming a stable rectangular structure by the moisture-absorbing and almost non-deforming yarn ensures that after the moisture-absorbing and deforming yarn absorbs moisture and deforms, the influence on the dimensional stability of the fabric is minimized as much as possible. Measured by "ISO 6330 Textiles - Home laundering and drying procedures for testing", the warp shrinkage rate of this fabric is -2%, and the weft shrinkage rate is -2.5%. It can be concluded that this fabric has good dimensional stability. As the moisture content of the fabric gradually increases, the yarn absorbs moisture and deforms and elongates, the gap between the coils expands, the unfilled coefficient increases, and the air permeability of the fabric increases. However, due to the limited degree of elongation of the yarn when absorbing moisture, a peak value will be reached, and at this time, the air permeability performance of the fabric reaches the maximum value; as the moisture absorption increases, the gaps between the coils are gradually filled with water molecules. Due to the pulling effect of the surface tension of the water molecules, the connection between the coils becomes closer, and the air permeability decreases significantly. The data in the table show that when the moisture absorption of this fabric is between 20% and 40%, the air permeability will reach the maximum value, and the peak will appear at about 30% moisture absorption. When the moisture content continues to increase, the air permeability of the fabric will continue to decline thereafter. At this time, the water molecules will play a role in hindering air circulation. It can also be seen from the above test results that for the moisture absorption of the fabric, that is, the moisture content, it is not that the higher the moisture content, the greater the deformation of yarn A and the better the air permeability, but there is a maximum value.

[0066] It should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An intelligent quick-drying fabric, comprising a fabric body, characterized in that, The fabric body is woven from at least two different-performance yarns including yarn A and yarn B. Yarn A is a yarn with moisture absorption and deformation characteristics, and yarn B is a yarn with a deformation amount ≤ 5% after moisture absorption. The fabric body includes several basic repeating unit structures. Within one basic repeating unit structure, yarn A is knitted to form a complete row of A loops. The row of A loops contains A loops, and yarn B is interwoven around yarn A. m and yarn B m+n , yarn B m is knitted to form row of B m loops. The row of B m loops contains B m loops. Yarn B m+n is knitted to form row of yarn B m+n loops. The row of yarn B m+n loops contains yarn B m+n loops. The row of B m loops and the row of B m+n loops are separated by n - 1 rows of loops. The row of B m loops and the row of B m+n loops are strung together and looped at least in one column of loops. Both m and n are natural numbers greater than 0.

2. The intelligent quick-drying fabric according to claim 1, characterized in that, Said B m Course of the coil and B m+n The courses of the coils are looped on at least two wales of the coils, and the adjacent two wales on which the coils are looped are spaced apart by k wales, so that the yarn B m and the yarn B m+n form a rectangular frame structure, wherein the width of the rectangular frame structure is 0 < n - 1 ≤ 10, and the length is 0 < k ≤ 20.

3. The intelligent quick-drying fabric according to claim 2, characterized in that, After the yarn A absorbs moisture, the elongation rate in the fiber length direction is 1% - 20%, and there is almost no elongation in the diameter direction. After drying, it returns to the initial length.

4. The intelligent quick-drying fabric according to claim 1, characterized in that, The proportion of the amount of yarn A to the total amount of the fabric body yarns is less than or equal to 40%, and the proportion of the amount of yarn B to the total amount of the fabric body yarns is greater than or equal to 60%.

5. The intelligent quick-drying fabric according to claim 1, characterized in that, The yarn B is any one or a combination of polyester fiber, polyamide 66 fiber, polyamide 6 fiber, modified polyester fiber, polypropylene fiber, cotton, lyocell, and modal.

6. The intelligent quick-drying fabric according to claim 1, wherein, After the fabric body absorbs moisture, the dimensional change rate is less than 8%.

7. The intelligent quick-drying fabric according to claim 1, characterized in that The fabric body is a knitted fabric.

8. The intelligent quick-drying fabric according to claim 1, characterized in that, The fabric body further includes an elastic yarn C, which is integrally woven with yarn A and yarn B.

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