TWI804092B - Breathable double-layered knitted fabric - Google Patents

Abstract

An breathable double-layered knitted fabric with a hole structure includes a first knitted layer and a second knitted layer. The first knitted layer has a first full yarn loop and a first space. The second knitted layer is interwoven with the first knitted layer, and has a second full yarn loop, a second space, a half yarn loop, a delayed full yarn loop, and a delayed half yarn loop, in which the delayed full yarn loop, the half yarn loop, the half yarn loop, the delayed half yarn loop are arranged in sequence to form a delayed triangular structure combination, and the delayed triangular structure combinaiton is aligned with the first space to form the hole structure.

Description

Breathable double knit

The present disclosure relates to a breathable double-layer knitted fabric, in particular to a breathable double-layer knitted fabric with a hole structure.

With the improvement of living standards in today's society, people's demand for functional textiles is also increasing, and with the continuous emergence of various functional textiles, the development of functional textiles with specific purposes is also becoming more and more perfect. For example, consumers are increasingly demanding textiles that are breathable, moisture-absorbing and quick-drying.

However, for double-layer knitted fabrics, the existing technology cannot make double-layer knitted fabrics have holes that can penetrate the fabric substantially, resulting in limited air permeability and moisture absorption and perspiration performance of double-layer knitted fabrics, making it difficult to provide comfort Wearable, can not meet the needs of users. Therefore, how to effectively improve the air permeability and moisture absorption and sweat-wicking properties of double-layer knitted fabrics is an important subject of active research by textile industry.

The disclosure provides a breathable double-layer knitted fabric with a hole structure, which can have good air permeability.

According to some embodiments of the present disclosure, a breathable double-layer knitted fabric with a hole structure includes a first knitted layer and a second knitted layer. The first knitted layer has a first full loop and a first empty space. The second knit layer is interwoven with the first knit layer and has a second full loop, a second void, a half loop, a delayed full loop, and a delayed half loop, wherein the delayed full loop, the half loop, and the half loop and the delayed half yarn coils are arranged in sequence to form a delayed triangular structure combination, and the delayed triangular structure combination is aligned with the first vacancy to form a hole structure.

In some embodiments, the first full loop is aligned with the half loop to form a bird's eye structure.

In some embodiments, the hole structure is the ventilation point of the breathable double-layer knitted fabric, and the bird's-eye structure is the core suction point of the breathable double-layer knitted fabric.

In some embodiments, the first full loop is aligned with the second full loop to form a connection structure, and the connection structure interweaves the first knitted layer and the second knitted layer with each other.

In some embodiments, the first void is aligned with the half loop to form a void structure, and the size of the void structure is smaller than the size of the hole structure.

In some embodiments, the breathable double-layer knitted fabric is woven from 100wt% non-elastic yarn or woven from 86wt% to 99.9wt% non-elastic yarn and 0.1wt% to 14wt% elastic yarn, The width of the hole structure is between 0.42mm and 0.49mm, and the length of the hole structure is between 0.75mm and 0.82mm.

In some embodiments, the air permeability of the breathable double knit fabric is between 300 cfm and 400 cfm.

In some embodiments, under the measurement of the standard method FTTS-FA-004, the moisture diffusion capacity of the breathable double-layer knitted fabric is between 2200 mm ² /20sec (20 seconds diffusion area) to 2500 mm ² /20sec (20 seconds diffusion area).

In some embodiments, the breathable double-layer knitted fabric is woven from 75wt% to 85wt% non-elastic yarn and 15wt% to 25wt% elastic yarn, the width of the hole structure is between 0.16mm and 0.28mm, and The length of the hole structure is between 0.64mm and 0.74mm.

In some embodiments, the air permeability of the breathable double knit fabric is between 63 cfm and 77 cfm.

According to the above-mentioned embodiments of the present disclosure, since the hole structure of the breathable double-layer knitted fabric is formed by a combination of specially designed delayed triangle structures, the hole structure is substantially passed through the hole of the breathable double-layer knitted fabric, not for example Visual holes such as mesh structure or bird's eye structure, so that the breathable double-layer knitted fabric has good air permeability.

A plurality of implementations of the present disclosure will be disclosed in the following diagrams. For the sake of clarity, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present disclosure. That is to say, in some embodiments of the present disclosure, these practical details are unnecessary, and thus should not be used to limit the present disclosure. In addition, for the sake of simplifying the drawings, some well-known structures and components will be shown in a simple and schematic manner in the drawings. In addition, for the convenience of readers, the size of each element in the drawings is not drawn according to actual scale.

The present disclosure provides a breathable double-layer knitted fabric with a hole structure. Since the hole structure is formed by a combination of specially designed delayed triangular structures, the hole structure can substantially pass through the breathable double-layer knitted fabric, so that the breathable double-layer knitted fabric has good air permeability. The breathable double-layer knitted fabric of the present disclosure is applicable to the field of functional textiles such as sportswear (eg, jogging apparel, yoga apparel, mountaineering apparel, etc.).

Please refer to FIG. 1 , which illustrates a weaving diagram of a breathable double-layer knitted fabric 100 according to some embodiments of the present disclosure. The breathable double-layer knitted fabric 100 includes a first knitted layer 110 and a second knitted layer 120 interwoven with the first knitted layer 110 . The first knitted layer 110 has a first full loop F1 and a first space S1, and the second knitted layer 120 has a second full loop F2, a second space S2, a half loop H, a delayed full loop DF and a delayed half loop. Yarn circle DH. By adjusting the alignment of the loops and spaces of the first knitted layer 110 and the loops and spaces of the second knitted layer 120 , the breathable double-layer knitted fabric 100 can have different structures or patterns. In the present disclosure, by arranging the delayed full loop DF, the half loop H, the half loop H, and the delayed half loop DH of the second knitting layer 120 in sequence, the needle loop is gradually enlarged during the yarn arrangement process. The delayed triangular structure combination DT is formed, and the delayed triangular structure combination DT is aligned with the first vacancy S1 of the first knitted layer 110, thereby forming a gap in the breathable double-layer knitted fabric 100 that actually passes through the breathable double-layer knitted fabric 100. Hole structure. It should be understood that the knitting needle combination K shown in FIG. 1 is only an exemplary embodiment, and the air-permeable double-layer knitted fabric 100 with different patterns can be formed through different knitting needle combinations K.

Please first refer to FIG. 2A to FIG. 2F , which are schematic top views of various molds 200 a - 200 f in the loom. The breathable double-layer knitted fabric 100 of the present disclosure can be woven by using a loom such as a circular knitting machine together with the molds 200 a - 200 f. In some embodiments, the molds 200a-200f can each have a fixing hole P and a groove R, wherein the fixing hole P can be configured to fix the molds 200a-200f on the loom, and the groove R can be configured to pass through to form this The exposed loops and vacancies. In other words, each loop and space of the present disclosure can be formed by various molds in FIGS. 2A to 2F . For example, the first full yarn loop F1 can be formed by the mold 200a in FIG. 2A, the second full yarn loop F2 can be formed by the mold 200b in FIG. 2B, and can be formed by the mold 200c in FIG. 2C. The first space S1 and the second space S2 can form a half loop H by the mold 200d in FIG. 2D, can form a delayed full loop DF by the mold 200e in FIG. 2E, and can use the mold 200e in FIG. 2F. The mold 200f is used to form the delayed half loop DH.

Please return to FIG. 1, in some embodiments, the delay triangular structure combination DT can be aligned with at least one first vacancy S1 of the first knitted layer 110, and can be aligned with at most four first vacancies of the first knitted layer 110. S1 is aligned to form a hole structure. In more detail, the delay triangular structure combination DT can be combined with one first vacant position S1 and three first full yarn turns F1 arranged arbitrarily, two first vacant positions S1 and two first full yarn turns F1 arranged arbitrarily, any The aligned three first spaces S1 and one first full yarn loop F1 or randomly arranged four first spaces S1 are aligned to form a hole structure. When the delayed triangular structure combination DT is aligned with the plurality of first vacancies S1 , the hole structure can have a larger size, thereby improving the air permeability of the breathable double-layer knitted fabric 100 .

Since the hole structure of the present disclosure is a hole that actually passes through the breathable double-layer knitted fabric 100, rather than a visual hole such as a mesh structure or a bird's eye structure, in some embodiments, the hole structure can constitute a breathable double-layer knitted fabric 100. Breathable points of layer knitted fabric 100 . In other words, gas (for example, air) can pass through the hole structure of the breathable double-layer knitted fabric 100 to a certain extent and flow from one side of the breathable double-layer knitted fabric 100 to the opposite side, so as to improve the breathable double-layer knitted fabric 100. air permeability. In some embodiments, the hole structure can have a long axis and a short axis perpendicular to each other, wherein the maximum length of the long axis (ie, the length of the hole structure) and the maximum length of the short axis (ie, the width of the hole structure) can be Each falls within a certain range to improve the air permeability of the breathable double-layer knitted fabric 100 . It should be appreciated that since the proportion of yarn types in the fabric (e.g., elastic, non-elastic, etc.) The size of the hole structure of the knitted fabric 100 cannot be generalized.

In some embodiments, the breathable double layer knitted fabric 100 may have a low content (proportion) of elastic yarns. For example, the breathable double-layer knitted fabric 100 can be woven with 100wt% non-elastic yarn, or 86wt%-99.9wt% non-elastic yarn and 0.1wt%-14wt% elastic yarn. When the content (proportion) of the elastic yarn of the breathable double-layer knitted fabric 100 falls within the above-mentioned range, the width of the hole structure of the breathable double-layer knitted fabric 100 with low elasticity can be between 0.42mm and 0.49mm, and the hole structure The length can be between 0.75mm and 0.82mm. In other embodiments, the breathable double-layer knitted fabric 100 may have a high content (proportion) of elastic yarns. For example, the breathable double-layer knitted fabric 100 may be woven from 75wt% to 85wt% of non-elastic yarns and 15wt% to 25wt% of elastic yarns. When the content (proportion) of the elastic yarn of the breathable double-layer knitted fabric 100 falls within the above range, the width of the hole structure of the highly elastic breathable double-layer knitted fabric 100 can be between 0.16mm and 0.28mm, and the hole structure The length can be between 0.64mm and 0.74mm. Since the hole structure of the present disclosure is formed by the delay triangular structure combination DT, the hole structure can have a suitable size to provide good air permeability, and as the proportion of the elastic yarn in the breathable double-layer knitted fabric 100 increases, The size of the pore structure can still be maintained within a certain range. It should be noted that the holes in the traditional fabric without delay triangular structure combination DT are only "slits" formed by needle loops, which are small in size and can only be observed after high-strength stretching, and cannot provide Breathability, and as the proportion of elastic yarn in the fabric increases, the gap will be greatly reduced or even disappeared.

In some embodiments, the first full loop F1 of the first knitted layer 110 can be aligned with the half loop H of the second knitted layer 120 to form a bird's eye structure in the breathable double-layer knitted fabric 100 . Specifically, the bird's-eye structure is a "dimple" located on the surface of the breathable double-layer knitted fabric 100 , rather than a hole that actually passes through the breathable double-layer knitted fabric 100 . Since the bird's-eye structure can produce core suction to quickly discharge sweat and facilitate sweat evaporation, in some embodiments, the bird's-eye structure can constitute the core suction point of the breathable double-layer knitted fabric 100 . In some embodiments, the area ratio of the bird's eye structure on a single surface of the breathable double-layer knitted fabric 100 can be between 5% and 35%, so as to quickly discharge the sweat generated by the user's body and make the breathable double-layer knitted fabric 100 more comfortable. The layered knitted fabric 100 has good moisture absorption and perspiration properties.

In some embodiments, the first full loop F1 of the first knitted layer 110 can be aligned with the second full loop F2 of the second knitted layer 120 to form a connection structure in the breathable double-layer knitted fabric 100 . In detail, when the first full yarn circle F1 and the second full yarn circle F2 are in alignment, the first full yarn circle F1 and the second full yarn circle F2 can interweave each other to form a connection structure, so that the first knitted layer 110 and the second knitted layer 120 are firmly interwoven with each other. Through the configuration of the connection structure, the breathable double-layer knitted fabric 100 can have good structural stability, thereby improving the dimensional stability of the hole structure, so that the breathable double-layer knitted fabric 100 can stably maintain good air permeability.

In some embodiments, the first vacancy S1 of the first knitted layer 110 can be aligned with the second vacancy S2 of the second knitted layer 120 to form a void structure in the breathable double-layer knitted fabric 100 . In some embodiments, the size of the pore structure is smaller than the size of the hole structure. In more detail, since the formation of the pore structure is caused by the knitting needles not coming out during the weaving process, the pore structure can be equivalent to the "gap" in the breathable double-layer knitted fabric 100, which is small in size and needs to pass through high-strength The stretch is only visible and does not provide breathability. Through the configuration of the pore structure, the surface of the breathable double-layer knitted fabric 100 can have uneven texture (pattern), which helps sweat to be introduced into the breathable double-layer knitted fabric 100 from the user's body and/or sweat from the breathable double-layer knitted fabric 100. The knitted fabric 100 is exported to the environment, thereby improving the moisture absorption and perspiration performance of the breathable double-layer knitted fabric 100, and reducing the probability of the breathable double-layer knitted fabric 100 sticking to the user's body after moisture absorption, thereby reducing the sticky feeling.

Please refer to FIG. 3A to FIG. 3C , which respectively illustrate the planar structure diagrams of breathable double-layer knitted fabrics 100 a - 100 c according to different embodiments of the present disclosure. Since the breathable double-layer knitted fabrics 100a-100c are woven through different knitting needle combinations K, they can have different patterns. In addition, in Fig. 3A to Fig. 3C, the hole structure of the present disclosure is marked with the symbol "O", and the bird's-eye structure of the present disclosure is marked with the symbol "BY". In the following description, the evaluation of the fabric hole structure size, fabric coverage, fabric air permeability and fabric moisture diffusion ability will be carried out for the double-layer knitted fabrics of each embodiment and each comparative example, wherein the fabric hole structure size and fabric coverage It is calculated by image capture binarization of double-layer knitted fabrics. The air permeability of the fabric is measured by the standard method CNS5612, and the moisture diffusion ability of the fabric is measured by the standard method FTTS-FA-004. Measured. Other details and evaluation results of each embodiment and each comparative example are shown in Table 1, wherein each embodiment and each comparative example is a double-layer knitted fabric with a gauge of 28, and the difference between each embodiment and each comparative example is only in Each comparative example did not have a delay triangle structure combination. It should be understood that the materials used, their amounts and ratios, processing details, and processing procedures can be appropriately changed without departing from the scope of the present disclosure. Therefore, the present disclosure should not be limitedly interpreted by the embodiments described below.

Table I Example 1 Example 2 Comparative example 1 Comparative example 2 Yarn type and ratio Elastic Yarn (Spandex) 0wt%~ 14wt% 15wt%~ 25wt% 0 wt%~ 14 wt% 15wt%~ 25wt% Non-elastic yarn (polyester) 86 wt%~ 100% 75wt%~ 85% 86 wt%~ 100 wt% 75 wt%~ 85 wt% Fabric hole structure size Width (mm) 0.42~0.49 0.16~0.28 0.13~0.20 0.06~0.07 Length (mm) 0.75~0.82 0.64~0.74 0.17~0.21 0.08~0.10 Fabric coverage (%) 75~78 91~94 85~88 95~98 Fabric air permeability (cfm) 300~400 63~77 150~190 25~35 Fabric's ability to diffuse moisture (mm ² /20sec) (diffusion area in 20 seconds) 1700~1900 2200~2500 1200~1500 1500~1800 Note 1: The evaluation of each embodiment and each comparative example is based on the measurement of five samples, and the numerical range formed by the maximum value and the minimum value is used as the evaluation result. Note 2: The unit of the fabric's ability to diffuse moisture is mm ² /20sec, which means the diffusion area of moisture on the fabric after 20 seconds.

From the results of Example 1 and Comparative Example 1, Example 2 and Comparative Example 2, it can be seen that no matter it is a low-elasticity or high-elasticity double-layer knitted fabric, the double-layer knitted fabric with the hole structure formed by the combination of delayed triangular structures has Larger fabric pore structure size, lower fabric coverage, better air permeability and better fabric's ability to diffuse moisture. It can be seen that when the double-layer knitted fabric has a hole structure formed by a combination of delayed triangular structures, the air permeability of the double-layer knitted fabric can be improved. In addition, the moisture absorption and perspiration performance of the double-layer knitted fabric can be improved by the combination of the hole structure and the bird's eye structure. It should be noted that the "hole structure" of Comparative Examples 1-2 is only the "gap" mentioned above, which is only formed through the needle loop during the weaving process, and is not the "hole structure" referred to in this disclosure.

According to the above-mentioned embodiments of the present disclosure, since the hole structure of the breathable double-layer knitted fabric is formed by a combination of specially designed delayed triangle structures, the hole structure is substantially passed through the hole of the breathable double-layer knitted fabric, not for example Visual holes such as mesh structure or bird's eye structure, so that the breathable double-layer knitted fabric has good air permeability. In addition, the breathable double-layer knitted fabric and the moisture absorption and perspiration performance can be further improved through the mutual matching of the bird's eye structure and the connection knot. In addition, through the configuration of the pore structure, the surface of the breathable double-layer knitted fabric can have an uneven texture, which helps to improve the moisture absorption and perspiration of the breathable double-layer knitted fabric, and can reduce the adhesion of the breathable double-layer knitted fabric. Sticky feeling on the user's body. Therefore, the breathable double-layer knitted fabric of the present disclosure can be applied in the field of functional textiles such as sports apparel (eg, jogging apparel, yoga apparel, mountaineering apparel, etc.).

Although this disclosure has been disclosed as above in the form of implementation, it is not intended to limit this disclosure. Anyone who is familiar with this technology can make various changes and modifications without departing from the spirit and scope of this disclosure. Therefore, the protection of this disclosure The scope shall be defined by the appended patent application scope.

100: breathable double knit fabric 110: the first knitted layer 120: second knitted layer 200a~200f: Mold S1: the first vacancy S2: Second vacancy F1: the first full yarn circle F2: the second full yarn circle H: half yarn circle DF: delayed full yarn circle DH: delayed half yarn circle DT: delay triangle structure combination K: knitting needle combination BY: bird's eye structure O: hole structure P: Fixing hole R: Groove

FIG. 1 shows a weaving diagram of a breathable double-layer knitted fabric according to some embodiments of the present disclosure; Figures 2A to 2F show schematic top views of various molds in the loom; and FIG. 3A to FIG. 3C illustrate the planar structure diagrams of breathable double-layer knitted fabrics according to different embodiments of the present disclosure.

Domestic deposit information (please note in order of depositor, date, and number) none Overseas storage information (please note in order of storage country, institution, date, and number) none

100: breathable double knit fabric

110: the first knitted layer

120: second knitted layer

S1: the first vacancy

S2: Second vacancy

F1: the first full yarn circle

F2: the second full yarn circle

H: half yarn circle

DF: delayed full yarn circle

DH: delayed half yarn circle

DT: delay triangle structure combination

K: knitting needle combination

Claims (10)

A breathable double-layer knitted fabric has a hole structure, and the breathable double-layer knitted fabric comprises: a first knitted layer having a first full loop and a first void; and A second knit layer interwoven with the first knit layer, the second knit layer having a second full loop, a second void, a half loop, a delayed full loop, and a delayed half loop, wherein the delayed full loop The yarn circle, the half yarn circle, the half yarn circle and the delayed half yarn circle are arranged in sequence to form a delayed triangular structure combination, and the delayed triangular structure combination is aligned with the first vacancy to form the Hole structure. The breathable double-layer knitted fabric according to claim 1, wherein the first full loop is aligned with the half loop to form a bird's eye structure. The breathable double-layer knitted fabric according to claim 2, wherein the hole structure is the breathable point of the breathable double-layer knitted fabric, and the bird's-eye structure is the core suction point of the breathable double-layer knitted fabric. The breathable double-layer knitted fabric according to claim 1, wherein the first full loop and the second full loop are aligned to form a connection structure, and the connection structure makes the first knitted layer and the The second knitted layer is interwoven with each other. The air-permeable double-layer knitted fabric according to claim 1, wherein the first vacancy is aligned with the half loop to form a pore structure, and the size of the pore structure is smaller than the size of the pore structure. The breathable double-layer knitted fabric as described in claim 1, wherein the breathable double-layer knitted fabric is woven from 100wt% non-elastic yarn or 86wt% to 99.9wt% non-elastic yarn and 0.1wt% to 14wt% elastic yarn is woven, the width of the hole structure is between 0.42mm and 0.49mm, and the length of the hole structure is between 0.75mm and 0.82mm. The breathable double-layer knitted fabric according to claim 6, wherein the air permeability of the breathable double-layer knitted fabric is between 300cfm and 400cfm. The breathable double-layer knitted fabric according to claim 6, wherein the moisture diffusion capacity of the breathable double-layer knitted fabric is between 2200 mm ² /20sec and 2500 mm ² / 20sec. The breathable double-layer knitted fabric as described in claim 1, wherein the breathable double-layer knitted fabric is woven from 75wt% to 85wt% non-elastic yarn and 15wt% to 25wt% elastic yarn, and the hole structure The width of the hole structure is between 0.16mm and 0.28mm, and the length of the hole structure is between 0.64mm and 0.74mm. The breathable double-layer knitted fabric according to claim 9, wherein the air permeability of the breathable double-layer knitted fabric is between 63cfm and 77cfm.

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