A kind of cotton-polyester yarn with strong moisture absorption and quick drying and comfortable fabric

Abstract

The present application provides a strong moisture-absorbing and quick-drying cotton-polyester yarn and a comfortable fabric. The cotton-polyester yarn includes an inner core and an outer layer that wraps the inner core. The outer layer is formed by a plurality of identical cotton fibers arranged evenly, and the inner core is formed by a plurality of identical special-shaped cross-section polyester filaments arranged evenly. The cross section of each of the special-shaped cross-section polyester filaments is flat cross-shaped, and the filaments have 4 grooves corresponding to the longitudinal direction; the mass ratio of the inner core to the outer layer is 30-40:60-70. Applying this yarn structure to fabrics can avoid the shortcomings of cotton short fibers being easy to drop and having poor quick-drying properties, while giving the fabrics the texture of cotton and the quick-drying properties of polyester. The fabrics woven in the embodiment of the present application are then finished with a moisture-absorbing and quick-drying resin to reduce the water absorption of cotton fibers, increase the drying rate of the fabrics, and give the fabrics a strong drying rate and good softness and fluffy properties; they are more suitable for summer and can effectively improve the outdoor wearing experience.

Description

Technical Field

[0001] The present application belongs to the technical field of textile fabrics, and in particular relates to a strong moisture-absorbing and quick-drying cotton-polyester yarn and a comfortable fabric. Background Art

[0002] Cotton fiber has a waist-shaped cavity structure and a flat ribbon-like appearance. Its molecular structure contains a large number of hydroxyl groups, which makes it have good moisture absorption capacity. Cotton fabrics are skin-friendly and comfortable. Pure cotton fabrics have always been the main raw material for summer clothing. Traditional cotton products have high moisture absorption and comfort. When the wearer sweats a lot due to exercise, although pure cotton fabrics can absorb a lot of sweat, the quick-drying property of pure cotton fabrics is poor. Sweat will be stored in the fabric and difficult to discharge, causing wet clothes to cling to the body, which can easily make people feel damp, cold, stuffy and other discomforts.

[0003] Among the commonly used chemical fiber fabrics, polyester fiber has better quick-drying properties, etc., but the feel of the fabric is difficult to compare with pure cotton fabric. It is not as soft and fluffy as pure cotton fabric, and is not very skin-friendly. The industry has made certain new breakthroughs based on traditional polyester or cotton fabrics, providing users with more comfortable fabrics that are more suitable for close-fitting wear in hot summer weather and other environments. The moisture-absorbing and quick-drying finishing in textiles is mainly aimed at chemical fiber fabrics such as polyester and nylon, and the finishing effect is also relatively ideal; while the molecular chain of cotton fabrics contains a large number of hydrophilic hydroxyl groups, which makes it have good hygroscopicity, and moisture can easily penetrate into the fiber. Therefore, it is difficult to achieve quick-drying standards by using existing technical means to perform moisture-absorbing and quick-drying finishing on cotton fabrics. Traditional textile technology uses cotton blended polyester, but it still has the defects of poor hand feel and low comfort. Utility Model Content

[0004] In view of this, the present application provides a highly moisture-absorbing and quick-drying cotton-polyester yarn and a comfortable fabric. The cotton-polyester yarn provided in the present application is used in the fabric, so that the fabric has both the texture of cotton and the quick-drying characteristics of polyester. It is suitable for summer and enhances the outdoor wearing experience.

[0005] The present application provides a highly moisture-absorbing and quick-drying cotton-polyester yarn, the cotton-polyester yarn comprising an inner core and an outer layer wrapping the inner core, the outer layer being formed by a plurality of identical cotton fibers being evenly arranged, the inner core being formed by a plurality of identical special-section polyester filaments being evenly arranged, each of the special-section polyester filaments having a flat cross-shaped cross section, and having four corresponding grooves in the longitudinal direction of the filament; the mass ratio of the inner core to the outer layer is 30-40:60-70.

[0006] In an embodiment of the present application, the special-shaped cross-section polyester filament is Coolmax polyester filament.

[0007] In the embodiment of the present application, the specification of the special-shaped cross-section polyester filament is 40-50D.

[0008] In an embodiment of the present application, the specification of the outer layer cotton fiber is 50S / 1.

[0009] The present application provides a strong moisture-absorbing and quick-drying comfortable fabric, which is woven from the cotton-polyester yarn mentioned above.

[0010] In an embodiment of the present application, the surface of the comfortable fabric is further compounded with a moisture-absorbing and quick-drying finishing resin layer.

[0011] Compared with the prior art, the present application provides a cotton / special-section polyester yarn and a comfortable fabric, wherein the yarn comprises an inner core and an outer layer wrapping the inner core, wherein the outer layer is formed by a plurality of identical cotton fibers arranged evenly, and the inner core is formed by a plurality of identical special-section polyester filaments arranged evenly, and each of the special-section polyester filaments has a flat cross-shaped cross section, and the filament has four corresponding grooves in the longitudinal direction; the mass ratio of the inner core to the outer layer is 30-40:60-70. In the present application, the yarn is not only a combination of cotton and special-section polyester filaments (such as Coolmax polyester filaments) in a certain proportion, but also a yarn structure in which the special-section polyester filaments are arranged inside and the cotton fibers are evenly placed outside. Applying this yarn structure to fabrics can avoid the disadvantages of easy fiber loss and poor quick-drying of cotton short fibers, while giving the fabrics the texture of cotton and the quick-drying properties of polyester.

[0012] Furthermore, the fabric after weaving in the embodiment of the present application is then finished with a moisture-absorbing quick-drying resin to reduce the water absorption of the cotton fiber and increase the drying rate of the fabric, so that the fabric has a strong drying rate and good softness and fluffy properties; the drying rate can be above 0.2g / h, which is more suitable for summer and can effectively improve the outdoor wearing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of a yarn cross-section structure provided in an embodiment of the present application;

[0014] Figure 2 A schematic diagram of the overall structure of the yarn provided in the embodiment of the present application;

[0015] Figure 3 Schematic diagram of the distribution of resin molecules on the fabric surface according to some embodiments of the present application. DETAILED DESCRIPTION

[0016] The following will be combined with the accompanying drawings in the embodiments of the present application, etc., to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present application. Unless otherwise specified, the various reagents and raw materials used in the present application are commodities that can be purchased from the market or products that can be obtained by generally recognized methods.

[0017] The present application provides a highly moisture-absorbing and quick-drying cotton-polyester yarn, which comprises an inner core and an outer layer wrapping the inner core, wherein the outer layer is formed by a plurality of identical cotton fibers arranged evenly, and the inner core is formed by a plurality of identical special-shaped cross-section polyester filaments arranged evenly, each of the special-shaped cross-section polyester filaments has a flat cross-shaped cross-section, and the filament has four corresponding grooves in the longitudinal direction; the mass ratio of the inner core to the outer layer is 30-40:60-70.

[0018] The cotton-polyester yarn provided in the present application is applied to fabrics, so that the fabrics have both the texture of cotton and the quick-drying property of polyester, are suitable for summer, and enhance the outdoor wearing experience.

[0019] See also Figure 1 and Figure 2 , Figure 1 Schematic diagram of the cross-sectional structure of yarn in the embodiment, 101 is cotton fiber, 102 is Coolmax polyester filament; Figure 2 201 is an outer layer and 202 is an inner core. The cotton-polyester yarn structure described in the embodiment of the present application includes an outer layer 201 and an inner core 202, wherein the outer layer 201 wraps the inner core 202, and the outer layer 201 is formed by cotton fibers 101, and the inner core 202 is composed of Coolmax polyester filaments 102.

[0020] Coolmax fiber is a new type of modified polyester fiber with a large specific surface area. It is a special-shaped cross-section functional fiber first developed and launched by DuPont in the United States. It is also called four-channel special-shaped polyester fiber, moisture-absorbing and perspiration-wicking fiber, etc. The cross-section of Coolmax polyester filament is flat cross-shaped, and four grooves are formed on the longitudinal surface of the fiber, which can quickly transfer the moisture emitted from the skin surface to the permeable surface; but Coolmax fiber and polyethylene terephthalate (PET) fiber have low moisture regain, and their antistatic and skin-friendly properties are worse than natural fibers. When Coolmax polyester filament is blended with cotton fiber, the hairiness is more and longer, the pilling performance is relatively poor, the hand feel is astringent, and the comfort is not good.

[0021] The special-section polyester filament described in the embodiment of the present application is Coolmax filament. Filament is relative to staple fiber (short for short), and its specification is preferably 40-50D, and further 50D. Denier is the denier, which can generally be used to indicate the fineness of chemical fiber filament. The unit is referred to as D, which refers to the number of grams of 9 kilometers of fiber or yarn at the official moisture regain. It is a fixed-length fineness specification. The larger the value, the finer the fiber. The metric count is a fixed-weight system, expressed as count (S). The larger the value, the finer the yarn; at the official moisture regain, if the length of a 1-gram yarn is 60 meters long, the fineness of the yarn is 60S.

[0022] In a preferred embodiment of the present application, the specification of the outer layer cotton fiber is 50S / 1 (where 1 refers to 1 strand of yarn). The yarn composition of the embodiment of the present application is cotton and Coolmax polyester, and the mass percentage composition is: 60-70% cotton and 40-30% coolmax fiber; that is, the mass ratio of the inner core to the outer layer is 30-40:60-70, for example, 30:70, 35:65, or 40:60.

[0023] In the embodiment of the present application, the cotton-polyester yarn of the above structure can be obtained by the core-spinning method of short fiber wrapped filament. The present application has no special restrictions on the roving, spun yarn and drawing processes in spinning; in the embodiment of the present application, the coolmax fiber is coated with cotton fiber and located in the inner layer of the yarn, and the cotton fiber is located in the outer layer of the yarn, thereby avoiding the problem of relatively poor spinnability of coolmax such as high hairiness and easy pilling.

[0024] The embodiment of the present application uses a certain proportion of cotton and coolmax fiber as raw materials. The cotton fiber is evenly distributed to form the outer layer of the yarn, which can directly contact the skin on the outside, while the Coolmax fiber filaments are distributed in the inner layer and are completely covered inside. This structural yarn is made into a fabric, and the characteristics of cotton fiber and specific polyester chemical fiber are combined together, which not only ensures the stiffness and width of the fabric, but also retains the main characteristics of cotton fiber. The fabric is soft, skin-friendly and comfortable, avoiding the feeling of chemical fiber, that is, it maintains the feel of the fabric while having good dimensional stability. The Coolmax moisture absorption and perspiration fiber uses the capillary phenomenon generated by the fine grooves on the fiber surface to make the moisture quickly migrate to the surface of the fabric and dissipate through wicking, diffusion, transmission, etc., so as to achieve the purpose of moisture conduction and quick drying.

[0025] The embodiment of the present application provides a strong moisture-absorbing and quick-drying comfortable fabric, which is woven from the cotton and polyester yarns described above. The comfortable fabric can be a knitted or woven fabric, and the present application is mainly for knitted fabrics; the fabric weight can be in the range of 190 to 220g; the fabric structure can include single-sided fabric and double-sided fabric. The embodiment of the present application can obtain the comfortable fabric through the knitting weaving process, that is, the obtained knitted fabric is relatively comfortable and has good moisture absorption and quick-drying performance.

[0026] Preferably, the surface of the comfortable fabric is also compounded with a moisture-absorbing quick-drying finishing resin layer. Figure 3 As shown, after weaving, the fabric 1 is subjected to moisture absorption and quick-drying finishing with a resin working liquid of a certain concentration, and the moisture absorption and quick-drying resin molecules 2 are distributed on the surface of the fabric, which can reduce the number of hydroxyl groups of the cotton fiber to a certain extent and increase the drying rate.

[0027] After weaving is completed, the embodiment of the present application preferably further reduces the high hygroscopicity of the cotton fiber through resin finishing. The hygroscopic quick-drying resin involved is mainly 2D resin (dimethylol dihydroxyethyl ethylene urea resin), which is also used for shrinkage and wrinkle-proof finishing of cotton; the embodiment of the present application performs resin finishing through conventional post-finishing methods, and the gram weight remains basically unchanged before and after finishing. The embodiment of the present application allows sweat to quickly and fully contact the air and dissipate into the air, thereby increasing the drying rate of the fabric; at the same time, the fabric is fluffy, soft, and has good skin-friendliness. The embodiment of the present application can reduce the number of hydroxyl groups of cotton fibers with strong hygroscopicity with the help of hygroscopic quick-drying additives. At the same time, the characteristics of Coolmax fibers also help to improve the quick-drying performance, so that the fabric has a cotton feel while also having the characteristics of hygroscopic quick-drying. The fabric is soft and skin-friendly, which improves the wearing experience. It is suitable for infants, children, and other people to wear, and is safe and comfortable.

[0028] In order to better illustrate the present application, further examples are given below.

[0029] Embodiment 1:

[0030] The cotton-polyester yarn provided in this embodiment includes an inner core and an outer layer wrapping the inner core, wherein the outer layer is formed by a plurality of uniformly arranged cotton fibers, and the inner core is formed by a plurality of uniformly arranged Coolmax polyester filaments; the mass ratio of the inner core to the outer layer is 30:70. The yarn count of the cotton yarn is 50S / 1, and the Coolmax polyester filament is 50D.

[0031] The embodiment of the present application combines coolmax fiber and cotton fiber in a core-spun manner to form the above yarn. Then, it is woven according to the knitted structure of double-sided cloth to obtain a fabric with a gram weight of 190g, and then it is finished by using 2D resin for moisture absorption and quick drying to obtain a comfortable fabric product.

[0032] The finished fabric has a soft hand feel, and its moisture absorption and quick-drying data (the test method adopts the national standard GB / T21655.1-2023) include: drip diffusion time after washing (s): 2.5s, water absorption rate (%): 196, wicking height (mm): 163, drying rate (g / h): 0.25.

[0033] Embodiment 2:

[0034] The cotton-polyester yarn provided in this embodiment includes an inner core and an outer layer wrapping the inner core, wherein the outer layer is formed by a plurality of uniformly arranged cotton fibers, and the inner core is formed by a plurality of uniformly arranged Coolmax polyester filaments; the mass ratio of the inner core to the outer layer is 40:60. The yarn count of the cotton yarn is 50S / 1, and the Coolmax polyester filament is 50D.

[0035] The embodiment of the present application combines coolmax fiber and cotton fiber in a core-spun manner to form the above yarn. Then, it is woven according to the knitted structure of double-sided cloth to obtain a fabric with a gram weight of 190g, and then it is finished by using 2D resin for moisture absorption and quick drying to obtain a comfortable fabric product.

[0036] The finished fabric has a soft hand feel and has moisture absorption and quick drying (according to the above national standard test method) data including: water drop diffusion time after washing (s): 2.0s, water absorption rate (%): 216, wicking height (mm): 180, drying rate (g / h): 0.24.

[0037] The existing polyester-cotton blended fabrics have poor softness and fluffiness, and poor hand feel. After being treated with moisture absorption and quick-drying additives, the quick-drying effect of the fabrics is still relatively poor. In the moisture absorption and quick-drying performance test of the comfortable fabrics described in the embodiments of the present application, the drying rate is above 0.2g / h, which is better than the quick-drying performance of the existing Coolmax fabrics and cotton products on the market. In addition, the present application maintains a good hand feel and dimensional stability.

[0038] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A strong moisture-absorbing and quick-drying cotton-polyester yarn, characterized in that: The cotton-polyester yarn comprises an inner core and an outer layer wrapping the inner core, wherein the outer layer is formed by a plurality of identical cotton fibers arranged evenly, and the inner core is formed by a plurality of identical special-section polyester filaments arranged evenly, each of the special-section polyester filaments has a flat cross-shaped cross section, and the filament has four corresponding grooves in the longitudinal direction; the mass ratio of the inner core to the outer layer is 30-40:60-70.

2. The cotton-polyester yarn according to claim 1, characterized in that: The special-shaped cross-section polyester filament is Coolmax polyester filament.

3. The cotton-polyester yarn according to claim 2, characterized in that: The specification of the special-shaped cross-section polyester filament is 40-50D.

4. The cotton-polyester yarn according to any one of claims 1 to 3, characterized in that: The specification of the outer layer cotton fiber is 50S / 1.

5. A comfortable fabric with strong moisture absorption and quick drying, characterized in that: The invention is woven from the cotton-polyester yarn according to any one of claims 1 to 4.

6. The comfortable fabric according to claim 5, characterized in that: The surface of the comfortable fabric is also compounded with a moisture-absorbing quick-drying finishing resin layer.

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