Modal polylactic acid multifunctional knitted fabric

Abstract

The utility model relates to the field of knitted fabric, and the utility model provides a modal polylactic acid multifunctional knitted fabric, the knitted fabric is double -faced four needle path weaving structure, and the fabric weaving pattern is with twelve ways as a cycle, and the fabric weaving pattern is: first, third, fifth, seventh, ninth, eleventh way is upper needle float, lower needle loop, lower needle loop, lower needle loop, second, fourth, sixth way is upper needle loop, lower needle float, lower needle tuck, lower needle float, eighth, tenth, twelfth way is upper needle loop, lower needle float, lower needle float, lower needle tuck, and the yarn of first, third, fifth, seventh, ninth, eleventh way is polylactic acid filament, and the yarn of second, fourth, sixth, eighth, tenth, twelfth way is modal yarn, the modal polylactic acid multifunctional knitted fabric of the utility model, through the fabric weaving pattern and the characteristic of modal yarn, polylactic acid filament itself not only realizes moisture absorption and perspiration and moisture absorption quick dry, and can greatly reduce the stimulation to skin.

Description

Technical Field

[0001] This utility model relates to the field of knitted fabrics, and more specifically, to a multifunctional modal polylactic acid knitted fabric. Background Technology

[0002] Currently, conventional fabrics still have room for improvement in terms of comfort, safety, and functionality. On the one hand, once saturated with sweat, traditional fabrics only absorb and do not wick away, causing sweat to accumulate in the skin's contact layer, resulting in a stuffy, damp, and cold feeling. On the other hand, these fabrics are prone to causing skin allergies or irritation.

[0003] In summary, existing knitted fabrics suffer from problems such as sweat seepage and stuffiness, and the fabrics are prone to causing skin allergies or irritation.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] The purpose of this invention is to propose a multifunctional modal polylactic acid knitted fabric to solve the problems of sweat backflow and stuffiness, and the fact that the fabric is prone to causing skin allergies or irritation in existing knitted fabrics.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A multifunctional modal polylactic acid knitted fabric, wherein the knitted fabric has a double-sided four-needle knitting structure.

[0008] The fabric weave pattern consists of twelve rows in a cycle. The fabric weave pattern is as follows:

[0009] The first, third, fifth, seventh, ninth, and eleventh rows are: purl stitches with a floating thread, purl stitches forming a circle, purl stitches forming a circle, purl stitches forming a circle;

[0010] The second, fourth, and sixth lines are: knit stitches in a circle, purl stitches on a floating thread, purl stitches in a circle, and purl stitches on a floating thread.

[0011] The eighth, tenth, and twelfth stitches are: knit stitches in a circle, knit stitches on a floating thread, knit stitches on a floating thread, and knit stitches in a circle.

[0012] The yarns in the first, third, fifth, seventh, ninth, and eleventh yarns are polylactic acid filaments, while the yarns in the second, fourth, sixth, eighth, tenth, and twelfth yarns are modal yarns.

[0013] Furthermore, the modal yarn has a thickness of 40~60S, and the polylactic acid filament has a thickness of 70~80D.

[0014] Furthermore, the modal yarn has a yarn length of 255~295mm / 100 stitches, and the polylactic acid filament has a yarn length of 220~260mm / 100 stitches.

[0015] This invention proposes a multifunctional modal polylactic acid knitted fabric. Compared with the prior art, the multifunctional modal polylactic acid knitted fabric of this invention has the following advantages:

[0016] 1) The present invention describes a multifunctional modal polylactic acid knitted fabric. Modal yarn, as a regenerated cellulose fiber, has excellent hydrophilicity and instant moisture absorption capacity. When the modal yarn is close to the skin layer, it can quickly capture sweat on the skin surface and keep the contact layer dry. Polylactic acid is a bio-based biodegradable fiber with good hydrophobicity and wicking effect. Through the capillary action between fibers, moisture is quickly transported from the high-humidity area (modal layer) to the low-humidity area (outer layer of fabric). Through the fabric weaving pattern, the surface of the knitted fabric forms a raised dot pattern, which is essentially a three-dimensional water transport channel. The raised dot pattern not only increases the surface area to facilitate evaporation, but also forms a directional moisture conduction path from the inside to the outside of the fabric. In summary, modal yarn absorbs moisture, polylactic acid filaments wick away moisture, and the fabric weave pattern creates a textured, dotted pattern that wicks away moisture. The combination of these three elements achieves a highly efficient cycle of "moisture absorption-moisture wicking-quick drying," fundamentally preventing sweat from remaining on the skin and backflow, completely solving the problems of stuffiness and coldness after exercise, and achieving true moisture absorption and quick drying.

[0017] 2) The present invention describes a multifunctional modal polylactic acid knitted fabric, wherein the polylactic acid filament is a biodegradable fiber and the modal yarn is a regenerated cellulose fiber. Both the polylactic acid filament and the modal yarn are environmentally friendly and renewable fibers, and the fabric has high safety.

[0018] 3) The modal polylactic acid multifunctional knitted fabric described in this utility model has polylactic acid filaments that not only have natural antibacterial and anti-mite properties, but also natural UV protection properties.

[0019] 4) The modal polylactic acid multifunctional knitted fabric described in this utility model has polylactic acid filaments that are weakly acidic, which matches the pH of healthy human skin. Therefore, it can greatly reduce skin irritation and is suitable for sensitive skin.

[0020] 5) The present invention describes a multifunctional modal polylactic acid knitted fabric. Modal yarn is known for its silky smoothness, softness, and drape, providing unparalleled comfort against the skin. Polylactic acid filaments also have a good hand feel and a certain degree of elasticity. The combination of modal yarn and polylactic acid filaments results in a fabric that is skin-friendly, soft, and textured. Attached Figure Description

[0021] Figure 1 This is a triangular arrangement diagram of a multifunctional modal polylactic acid knitted fabric according to an embodiment of the present utility model;

[0022] Figure 2 This is a knitting arrangement diagram of a multifunctional modal polylactic acid knitted fabric according to an embodiment of the present invention. Detailed Implementation

[0023] To make the technical means and objectives and effects of this utility model easier to understand, the embodiments of this utility model will be described in detail below with reference to specific figures.

[0024] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connection arrangements between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] Example 1

[0029] Existing knitted fabrics suffer from problems such as sweat seepage and stuffiness, and the fabrics can easily cause skin allergies or irritation.

[0030] To address the aforementioned technical problems, this embodiment proposes a multifunctional modal polylactic acid knitted fabric, such as... Figure 1 and Figure 2 As shown, the knitted fabric has a double-sided four-needle knitting structure.

[0031] The fabric weave pattern consists of twelve rows in a cycle. The fabric weave pattern is as follows:

[0032] The first, third, fifth, seventh, ninth, and eleventh rows are: purl stitches with a floating thread, purl stitches forming a circle, purl stitches forming a circle, purl stitches forming a circle;

[0033] The second, fourth, and sixth lines are: knit stitches in a circle, purl stitches on a floating thread, purl stitches in a circle, and purl stitches on a floating thread.

[0034] The eighth, tenth, and twelfth stitches are: knit stitches in a circle, knit stitches on a floating thread, knit stitches on a floating thread, and knit stitches in a circle.

[0035] The yarns in the first, third, fifth, seventh, ninth, and eleventh yarns are polylactic acid filaments, while the yarns in the second, fourth, sixth, eighth, tenth, and twelfth yarns are modal yarns.

[0036] The modal polylactic acid multifunctional knitted fabric described in this embodiment has the following beneficial effects:

[0037] I. The Modal polylactic acid multifunctional knitted fabric described in this embodiment utilizes Modal yarn, a regenerated cellulose fiber, which possesses excellent hydrophilicity and instant moisture absorption capacity. The Modal yarn, close to the skin layer, quickly captures sweat from the skin surface, maintaining a dry feel. Polylactic acid, a biodegradable fiber, exhibits good hydrophobicity and wicking effect. Through capillary action between fibers, moisture is rapidly transported from high-humidity areas (Modal layer) to low-humidity areas (outer fabric layer). The knitted fabric surface forms a raised dot pattern through the fabric weaving pattern, essentially creating a three-dimensional water transport channel. This raised dot pattern not only increases the surface area for evaporation but also forms a directional moisture conduction path from the inside out within the fabric. In summary, modal yarn absorbs moisture, polylactic acid filaments wick away moisture, and the fabric weave pattern creates a textured, dotted pattern that wicks away moisture. The combination of these three elements achieves a highly efficient cycle of "moisture absorption-moisture wicking-quick drying," fundamentally preventing sweat from remaining on the skin and backflow, completely solving the problems of stuffiness and coldness after exercise, and achieving true moisture absorption and quick drying.

[0038] II. The modal polylactic acid multifunctional knitted fabric described in this embodiment uses polylactic acid filaments as bio-based biodegradable fibers and modal yarns as regenerated cellulose fibers. Both polylactic acid filaments and modal yarns are environmentally friendly and renewable fibers, resulting in high fabric safety.

[0039] III. The modal polylactic acid multifunctional knitted fabric described in this embodiment not only has natural antibacterial and anti-mite properties, eliminating the need for highly polluting chemical post-treatment processes such as antibacterial finishing and anti-mite finishing, but also has natural UV resistance.

[0040] IV. The modal polylactic acid multifunctional knitted fabric described in this embodiment has polylactic acid filaments that are weakly acidic, which matches the pH of healthy human skin. Therefore, it can greatly reduce skin irritation and is suitable for sensitive skin.

[0041] V. The Modal polylactic acid multifunctional knitted fabric described in this embodiment features Modal yarn, which is known for its silky smoothness, softness, and drape, providing unparalleled comfort against the skin. The polylactic acid filament also has a good hand feel and a certain degree of elasticity. The combination of Modal yarn and polylactic acid filament results in a fabric that is skin-friendly, soft, and textured.

[0042] VI. The modal polylactic acid multifunctional knitted fabric described in this embodiment has a cooling effect.

[0043] Specifically, the modal yarn has a thickness of 50S, and the polylactic acid filament has a thickness of 75D.

[0044] Specifically, the modal yarn has a thickness of 50S, and the polylactic acid filament has a specification of DTY75D / 72F. This configuration results in a final fabric with a soft, smooth, elastic, and breathable feel.

[0045] More specifically, DTY stands for Draw Textured Yarn, a type of processed synthetic fiber filament. It uses stretching and texturing processes to give the fiber bulk and elasticity, and is commonly used in textiles to enhance softness and comfort. 72F indicates the number of monofilaments; 72F means that polylactic acid filament is composed of 72 monofilaments. The higher the number of monofilaments, the finer the fiber structure, resulting in a softer, smoother fabric that is less prone to pilling and has better drape.

[0046] Furthermore, the modal yarn has a yarn length of 275mm / 100 stitches, and the polylactic acid filament has a yarn length of 240mm / 100 stitches.

[0047] The preparation method of the modal polylactic acid multifunctional knitted fabric described in this embodiment is existing technology and will not be elaborated here.

[0048] Example 2

[0049] In this embodiment, unlike in embodiment 1, the modal yarn has a thickness of 40S and the polylactic acid filament has a thickness of 70D.

[0050] Furthermore, the modal yarn has a yarn length of 255mm / 100 stitches, and the polylactic acid filament has a yarn length of 2200mm / 100 stitches.

[0051] Example 3

[0052] In this embodiment, unlike in embodiment 1, the modal yarn has a thickness of 60S and the polylactic acid filament has a thickness of 80D.

[0053] Furthermore, the modal yarn has a yarn length of 295mm / 100 stitches, and the polylactic acid filament has a yarn length of 260mm / 100 stitches.

[0054] Performance testing

[0055] The pH, antibacterial properties, cooling properties, and anti-mite properties of the modal polylactic acid multifunctional knitted fabrics described in Examples 1-3 were tested, and the results are shown in Table 1. The moisture-wicking and quick-drying properties of the modal polylactic acid multifunctional knitted fabrics described in Examples 1-3 were tested, and the results are shown in Table 2. The moisture-wicking and perspiration-wicking properties of the modal polylactic acid multifunctional knitted fabrics described in Examples 1-3 were tested, and the results are shown in Table 3. The skin adverse reaction of the modal polylactic acid multifunctional knitted fabrics described in Examples 1-3 was evaluated, and the results are shown in Table 4.

[0056] Table 1. Tests on pH, antibacterial properties, cooling properties, and mite-proof properties of knitted fabrics.

[0057]

[0058] As shown in Table 1, the pH value of the modal polylactic acid multifunctional knitted fabric described in Examples 1-3 is 4.6, which is stably within the weakly acidic range of healthy skin and matches the pH of healthy human skin. Therefore, it can greatly reduce skin irritation and is truly suitable for sensitive skin.

[0059] As shown in Table 1, the modal polylactic acid multifunctional knitted fabrics described in Examples 1-3 all exhibited antibacterial rates >82.0% against Staphylococcus aureus, Escherichia coli, and three common bacterial species. These results were obtained after 50 washes, which strongly demonstrates the natural and durable antibacterial function of polylactic acid filament fibers. This eliminates the need for finishing chemical auxiliaries and avoids the contradiction of sensitization for the sake of antibacterial properties.

[0060] As shown in Table 1, the mite repellency rate of the modal polylactic acid multifunctional knitted fabrics described in Examples 1-3 is >61.1%, proving that the knitted fabrics have anti-mite properties. This is due to the natural anti-mite properties of polylactic acid filaments, which provide additional health protection.

[0061] As shown in Table 1, the contact cooling coefficient of the modal polylactic acid multifunctional knitted fabric described in Examples 1-3 is better than the national standard, proving that the knitted fabric has cooling properties. Combined with its rapid sweat evaporation ability, it provides a continuous active cooling sensation for wearing during sports or in hot environments.

[0062] Table 2. Moisture absorption and quick-drying properties test of knitted fabrics

[0063]

[0064] Table 3. Moisture absorption and wicking properties test of knitted fabrics

[0065]

[0066] As shown in Tables 2 and 3, the modal polylactic acid multifunctional knitted fabrics described in Examples 1-3 possess excellent moisture-wicking and quick-drying properties. On one hand, regardless of whether it's before or after washing, the soaking time is ≤2.9 seconds (reaching the highest standard of level 5), and the water absorption rate and diffusion speed also far exceed the standard requirements. This proves that moisture is instantly transferred and cannot accumulate in the skin layer. On the other hand, the unidirectional transfer index increases after washing, rising from level 3 to level 5. This is a key highlight, indicating that the fabric's moisture-wicking structure is further optimized or fluffy after washing, exhibiting durable performance and completely eliminating sweat backflow.

[0067] Table 4. Evaluation of adverse skin reactions to knitted fabrics

[0068]

[0069] As shown in Table 4, the modal polylactic acid multifunctional knitted fabrics described in Examples 1-3 are not prone to adverse skin reactions, proving that the fabrics are extremely gentle on the skin and have achieved a perfect balance between safety and functionality.

[0070] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A multifunctional modal polylactic acid knitted fabric, characterized in that, The knitted fabric has a double-sided four-needle knitting structure. The fabric weave pattern consists of twelve rows in a cycle. The fabric weave pattern is as follows: The first, third, fifth, seventh, ninth, and eleventh rows are: purl stitches with a floating thread, purl stitches forming a circle, purl stitches forming a circle, purl stitches forming a circle; The second, fourth, and sixth lines are: knit stitches in a circle, purl stitches on a floating thread, purl stitches in a circle, and purl stitches on a floating thread. The eighth, tenth, and twelfth stitches are: knit stitches in a circle, purl stitches on a floating thread, purl stitches on a floating thread, and purl stitches in a circle. The yarns in the first, third, fifth, seventh, ninth, and eleventh yarns are polylactic acid filaments, while the yarns in the second, fourth, sixth, eighth, tenth, and twelfth yarns are modal yarns.

2. The modal polylactic acid multifunctional knitted fabric according to claim 1, characterized in that, The modal yarn has a thickness of 40~60S, and the polylactic acid filament has a thickness of 70~80D.

3. The modal polylactic acid multifunctional knitted fabric according to claim 2, characterized in that, The modal yarn has a yarn length of 255~295mm / 100 stitches, and the polylactic acid filament has a yarn length of 220~260mm / 100 stitches.

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