Breathable and opaque warp knit fabric

Abstract

A breathable and opaque warp knitted fabric, comprising a fabric body, the fabric body comprising a non-elastic yarn and an elastic yarn, the non-elastic yarn and the elastic yarn being knitted in a warp-through manner to form a knitted structure, the non-elastic yarn in the knitted structure presents a first tricot structure having three or more needles, the elastic yarn in the knitted structure presents a second tricot structure, the first tricot structure and the second tricot structure are arranged in the same direction, and the knitted structure has a non-through structure. The non-elastic yarn and the elastic yarn of the warp knitted fabric are knitted in a warp-through manner to form the knitted structure, and the shrinkage of the elastic yarn, the tricot structure and the non-perforated structure provide good breathability and anti-see-through effects.

Description

[Technical field]

[0001] The present invention relates to textile fabrics, and more particularly to warp knitted fabrics which are breathable and opaque. [Background technology]

[0002] Most of the fabrics for sports / leggings currently on the market have a gram weight of 180gsm (grams per square meter) or more, which makes them feel hot and lacks breathability when worn in the hot summer. If fabrics with a gram weight below 180gsm (grams per square meter) are used as the fabric, they are too thin and the inner layer is easily visible during exercise, which is embarrassing and does not help protect the privacy of the person exercising. For example, the specification of Chinese Utility Model No. 210501675 discloses that "an anti-transparency, moisture-absorbing, different-function knitted fabric includes a main body, an inner surface of which is connected to a skin-friendly cotton fabric layer by an adhesive, an outer surface of which is connected to a pure cotton fiber fabric layer by an adhesive, and a surface of which is connected to a nylon moisture-absorbing, sweat-wicking fabric layer by an adhesive. The device uses the skin-friendly cotton fabric layer to achieve the effect of comfortable wear; when sweat flows, the sweat passes through the skin-friendly cotton fabric layer and enters the cavities of the pure cotton fiber fabric layer, the nylon moisture-absorbing, sweat-wicking fabric layer, and the polyester moisture-absorbing, sweat-wicking fabric layer to achieve the effect of absorbing moisture; the woven fabric layer achieves the effect of transporting sweat; the inelastic moisture-absorbing, sweat-wicking fabric layer achieves the effect of wicking sweat; and the ventilation holes achieve the effect of quick drying, thereby solving the problem that conventional knitted fabrics do not have moisture absorption function and sweat cannot be quickly discharged when people wear them." This application is composed of many layers, including a skin-friendly cotton fabric layer, a pure cotton fiber fabric layer, a nylon moisture-absorbing and sweat-wicking fabric layer, a polyester moisture-absorbing and sweat-wicking fabric layer, a woven fabric layer, and a non-elastic moisture-absorbing and sweat-wicking fabric layer, and because these layers are joined together using an adhesive, the fabric is very thick and its range of use is extremely limited.

[0003] In addition, the specification of the Chinese Patent Application Publication No. 113832592 states, "A breathable and cool knitted fabric and clothing with a honeycomb structure, comprising a knitting line used for textile forming of the fabric, a textile composition panel is wound between the knitting lines, the knitting line is installed so as to be used as a line for heat dissipation, a honeycomb groove is formed between adjacent knitting lines in the panel in series with each other, and a tensile structure is installed on the panel to prevent deformation by the toughness of the honeycomb groove. The line of the knitting line designed in this application has a heat dissipation structure, and each knitting line is wound with a textile composition panel. The lining is folded and woven to form a continuous honeycomb groove, and when the knitting line is continuously folded and woven, it is wrapped around itself to give the body an anti-tensile deformation effect, and the adjacent knitting lines are woven in series with a honeycomb mold and wrapped around the line body to form a mutually wrapped contact point, and the contact points between the adjacent knitting lines are wrapped around to form a diamond-shaped anti-tensile groove, which gives the fabric a high-strength anti-tensile effect and proves the stability of the honeycomb structure, and the clothes made of this fabric are breathable and refreshing to wear. This application discloses that the honeycomb structure is represented by a few evenly spaced honeycomb grooves and is used for ventilation and heat dissipation. However, although it is relatively good in terms of breathability, due to the honeycomb structure, this fabric is easily see-through during exercise and has poor anti-see-through performance.

[0004] Therefore, there is an urgent need for warp knitted fabrics that are breathable and yet opaque. Summary of the Invention [Problem to be solved by the invention]

[0005] To provide a warp knitted fabric which is breathable and opaque, and which not only has excellent breathability but also has a good anti-see-through effect, ensuring breathability while being opaque. [Means for solving the problem]

[0006] To provide a warp knitted fabric which is breathable and opaque, and which not only has excellent breathability but also has a good anti-see-through effect, ensuring breathability while being opaque.

[0007] In order to achieve the above object, the present invention provides a breathable and opaque warp knitted fabric, comprising a fabric body, the fabric body comprising a non-elastic yarn and an elastic yarn, the non-elastic yarn and the elastic yarn are knitted in a warp-through manner to form a knitted structure, the non-elastic yarn in the knitted structure presents a first tricot structure having three or more needles, the elastic yarn in the knitted structure presents a second tricot structure, the first tricot structure and the second tricot structure are arranged in the same direction, and there is a non-through structure in the knitted structure, the non-elastic yarn and the elastic yarn are knitted in a warp-through manner with 0≦i≦10 needles to form the knitted structure, where i is the number of non-through needles.

[0008] Preferably, the warp knitting method of the fabric body of the breathable and opaque warp knitted fabric of the present invention is JPEG2025507076000002.jpg1530, in which i is the number of non-penetrating needles, m is the number of penetrating needles, n is the number of tricot needle skips, a is a positive integer, and 1≦i≦10.

[0009] Preferably, the tricot needle skip number of the breathable and opaque warp knitted fabric of the present invention is 3≦n≦7.

[0010] Preferably, the non-elastic yarn and the elastic yarn in the knitting structure of the breathable and opaque warp knitted fabric of the present invention are further arranged in a tricot structure with the same needle pitch, the non-penetrating manner of the non-elastic yarn and the elastic yarn are the same, and the reed adopted by the non-elastic yarn and the reed adopted by the elastic yarn are arranged in a manner in which the needles face each other.

[0011] Preferably, the inelastic yarn of the breathable and opaque warp knitted fabric of the present invention comprises a roving yarn and a fine yarn, the roving yarn and the fine yarn have different diameters, the diameter of the roving yarn is larger than the diameter of the fine yarn, and the roving yarn and the fine yarn in the knitted structure present a non-penetrating combination structure.

[0012] Preferably, the non-elastic yarn and the elastic yarn of the breathable and opaque warp knitted fabric of the present invention are knitted in a warp knitting through method with i=0 needles to form the knitted structure, and the non-elastic yarn includes a coarse yarn and a fine yarn, the coarse yarn and the fine yarn have different diameters, and the diameter of the coarse yarn is larger than the diameter of the fine yarn.

[0013] Preferably, if the number of fine yarns between two adjacent roving yarns in the breathable and opaque warp knitted fabric of the present invention is A, then A≦3, and if the diameter of the roving yarn is B and the diameter of the fine yarn is C, then B:C≧1.1.

[0014] Preferably, when the ratio of the yarn feed amounts of the roving yarn and the fine yarn in the air-permeable and opaque warp knitted fabric of the present invention is α, 0.7≦α≦1.5.

[0015] Preferably, the knitting structure of the breathable and opaque warp knitted fabric of the present invention satisfies the formula D=-1.44G+77.25, where D is the minimum yarn fineness required to achieve the function, the unit of D is denier (English: DENIER, abbreviated as Dan), and G is the number of needles on the loom.

[0016] Preferably, the first tricot structure and the second tricot structure of the breathable and opaque warp knitted fabric of the present invention are one or any combination of a fully open tricot structure, a fully closed tricot structure, and a 1-open 1-close tricot structure.

[0017] Preferably, when the fabric gram weight of the fabric body of the breathable and opaque warp knitted fabric of the present invention is E, 50 gsm≦E≦250 gsm.

[0018] Preferably, when the number of needles per inch in the fabric body of the breathable and opaque warp knitted fabric of the present invention is F, 28 needles≦F≦50 needles. Effect of the Invention

[0019] Compared with the prior art, the warp knitted fabric of the present invention has a non-elastic yarn and an elastic yarn, and the non-elastic yarn and the elastic yarn are knitted in a warp-through manner to form a knitted structure, and the non-elastic yarn in the knitted structure presents a first tricot structure of three or more needles, and at the same time, the elastic yarn in the knitted structure presents a second tricot structure, and the first tricot structure and the second tricot structure are arranged in the same direction, so that when the elastic yarn in the warp knitted fabric of the present invention contracts, the drawing line portion of the non-elastic yarn is curved and lifted by the force of the elastic yarn, and the yarns are close to each other, and at the same time, a tricot structure is formed, so that multiple needles are used to perform tricot, and some structures have multiple drawing lines between the vertical rows of adjacent loops, thereby realizing the effect of anti-see-through. At the same time, since the warp knitted fabric of the present invention has a non-through structure, a non-through method is adopted when the non-elastic yarn and the elastic yarn are knitted in a warp-through manner, and at the non-through positions, the distance between the yarns in the lateral direction is greater than the full-through position, forming a relatively small lateral density in the fabric, and the lateral direction is sparse, thereby realizing an excellent ventilation effect. At the same time, by combining and operating the non-elastic yarn, elastic yarn, tricot weave structure, and non-through structure of the present invention, the density at the continuous through positions is increased, the density at the non-through positions is decreased, and the density is alternating, which not only effectively balances breathability and transparency, but also reduces the weight per unit area of ​​the fabric, so that the warp knitted fabric structure of the present invention is characterized by being lightweight compared to the full-through fabric. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is a structural schematic diagram of the third embodiment of the present invention.

[0021] [Diagram 2] FIG. 2 is a structural schematic diagram of the fourth embodiment of the present invention.

[0022] [Diagram 3] FIG. 3 is a structural schematic diagram of the fifth embodiment of the present invention.

[0023] [Figure 4] FIG. 4 is a structural schematic diagram of the sixth embodiment of the present invention.

[0024] [Diagram 5] FIG. 5 is a structural schematic diagram of the seventh embodiment of the present invention.

[0025] [Figure 6] FIG. 6 is a structural schematic diagram of the eighth embodiment of the present invention.

[0026] [Figure 7] FIG. 7 is a structural schematic diagram of Example 9 of the present invention.

[0027] [Figure 8] FIG. 8 is a structural schematic diagram of the tenth embodiment of the present invention.

[0028] [Figure 9] FIG. 9 is a structural schematic diagram of Comparative Example 5 of the present invention. [Explanation of symbols]

[0029] Y1 is a coarse yarn and Y2 is a fine yarn. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] In the following, the technical solutions in the embodiments of the present invention are clearly and completely described in combination with specific embodiments and drawings to explain the technical solutions of the present invention. Of course, the described embodiments are only a part of the embodiments of the present invention, and are not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without performing creative labor, fall within the scope of protection of the present invention. Herein, the embodiments of the present invention are described with reference to the drawings, and similar element symbols in the drawings represent similar elements.

[0031] The breathable and opaque warp knitted fabric of the present invention includes a fabric body, which includes a non-elastic yarn and an elastic yarn, and the non-elastic yarn and the elastic yarn are knitted in a warp-through manner to form a knitted structure, in which the non-elastic yarn in the knitted structure presents a first tricot structure having three or more needles, and the elastic yarn in the knitted structure presents a second tricot structure, the first tricot structure and the second tricot structure are arranged in the same direction, and the knitted structure has a non-through structure. From this, it can be seen that the warp knitted fabric of the present invention has a non-elastic yarn and an elastic yarn, the non-elastic yarn and the elastic yarn are knitted in a warp-through manner to form a knitted structure, the non-elastic yarn in the knitted structure has a first tricot structure with 3 or more needles, and at the same time, the elastic yarn in the knitted structure has a second tricot structure, the first tricot structure and the second tricot structure are further arranged in the same direction, and the non-elastic yarn and the elastic yarn are knitted in a warp-through manner with 0≦i≦10 needles to form the knitted structure, where i is the number of non-through needles. Due to the contraction of the elastic yarn in the warp knitted fabric of the present invention, the stretch line part of the non-elastic yarn is curved and lifted by the action of the force of the elastic yarn, and the yarns approach each other, and at the same time, it has a tricot structure, so that multiple needles are used to perform tricot, and some structures have multiple stretch lines between the vertical rows of adjacent loops, thereby realizing the effect of preventing see-through. At the same time, since the warp knitted fabric of the present invention has a non-through structure, a non-through method is adopted when the non-elastic yarn and the elastic yarn are knitted in a warp-through manner, and at the non-through positions, the distance between the yarns in the lateral direction is greater than the full-through position, forming a relatively small lateral density in the fabric, and the lateral direction is sparse, thereby realizing an excellent ventilation effect. At the same time, by combining and operating the non-elastic yarn, elastic yarn, tricot weave structure, and non-through structure of the present invention, the density at the continuous through positions is increased, the density at the non-through positions is decreased, and the density is alternating, which not only effectively balances the breathability and the transparency, but also reduces the weight per unit area of ​​the fabric, so that the warp knitted fabric structure of the present invention has the characteristic of being lightweight compared to the full-through fabric.

[0032] From the above, it can be seen that both the non-elastic yarn and the elastic yarn can be knitted by a warp knitting through mode where 0≦i≦10 needles. There are two different technical application examples here, one is a situation where i is not 0, and the other is a situation where i=0. The two situations will be described in detail below.

[0033] Case 1: When i is not 0

[0034] In order to further improve the breathability and anti-see-through effect of the present invention, preferably, the fabric body of the warp knitted fabric of the present invention is made of a material having a good breathability and opaqueness, and the warp knitting method is a formula. In the formula, i is the number of non-penetrating needles, m is the number of penetrating needles, n is the tricot needle skip number, a is a positive integer, and 1≦i≦10, 3≦n≦7.

[0035] More specifically, the breathability and anti-see-through effect of the knitted structure formed by selecting non-elastic yarn and elastic yarn and knitting in a warp-through manner of 1≦i≦10 needles is more remarkable, and at the same time, the fabric body can be ensured to have sufficient strength and practicality. Furthermore, the non-elastic yarn and the elastic yarn in the knitted structure of the breathable and opaque warp knitted fabric of the present invention are installed at the same needle pitch, and the non-through manner of the non-elastic yarn and the elastic yarn is the same, and the needles of the reed are opposite to each other. Preferably, the non-elastic yarn of the breathable and opaque warp knitted fabric of the present invention includes a roving yarn and a fine yarn, the roving yarn and the fine yarn have different diameters, the diameter of the roving yarn is larger than the diameter of the fine yarn, and the roving yarn and the fine yarn in the knitted structure have a non-through combination structure. The non-elastic yarn of the present invention adopts the combination use of a roving yarn and a fine yarn, and it is only necessary to select an appropriate yarn feed ratio of the conventional roving yarn and the fine yarn, and the appropriate yarn feed ratio reduces the accommodation space of the fine yarn and forms a gap in the remaining space, thereby increasing the breathability effect. At the same time, the combination of coarse yarn and fine yarn provides a larger surface evaporation area for the fabric than the conventional combination of yarns of the same specifications, so that the warp knitted fabric of the present invention has good breathability and anti-see-through effect, and also has an excellent quick-drying effect. In addition, by combining coarse yarn and fine yarn without penetrating them and adding fine yarn to the non-penetrating position, the shielding effect can be further improved.

[0036] Case 2: i=0

[0037] More specifically, the non-elastic yarn and the elastic yarn of the breathable and opaque warp knitted fabric of the present invention are knitted using a warp knitting through method with i=0 needles to form the knitted structure, the non-elastic yarn includes a roving yarn and a fine yarn, the roving yarn and the fine yarn have different diameters, and if the number of the fine yarns between two adjacent roving yarns is A, A≦3, and if the diameter of the roving yarn is B and the diameter of the fine yarn is C, B:C≧1.1. The inelastic yarn of the present invention adopts a combination of roving and fine yarn, and the yarn feed ratio of the selected roving and fine yarn is α, which is 0.7≦α≦1.5. By selecting the yarn feed ratio within this range, the space required for the fine yarn is reduced, and gaps are formed in the remaining space, thereby increasing the ventilation effect. At the same time, the combination of roving and fine yarn has a larger surface evaporation area of ​​the fabric than the conventional combination of yarns of the same specifications, so that the warp knitted fabric of the present invention has good ventilation and anti-see-through effects, and also has an excellent quick-drying effect. In addition, the combination of roving and fine yarn without penetrating and adding fine yarn to the non-penetrating position can further improve the shielding effect.

[0038] Furthermore, in order to provide the breathability, anti-see-through effect and quick-drying effect of the present invention, preferably, the n of the breathable and opaque warp knitted fabric of the present invention is ≦7. Preferably, the knitting structure of the breathable and opaque warp knitted fabric of the present invention satisfies the formula D=-1.44G+77.25, where D is the minimum yarn fineness to achieve the function, the unit of D is denier (English: DENIER, abbreviated as Dan), and G is the number of needles on the loom.

[0039] Preferably, the first tricot structure and the second tricot structure of the breathable and opaque warp knitted fabric of the present invention are one or any combination of a fully open tricot structure, a fully closed tricot structure, and a 1-open 1-close tricot structure.

[0040] Preferably, when the fabric gram weight of the fabric body of the breathable and opaque warp knitted fabric of the present invention is E, 50 gsm≦E≦250 gsm.

[0041] Preferably, when the number of needles per inch in the fabric body of the breathable and opaque warp knitted fabric of the present invention is F, 28 needles≦F≦50 needles.

[0042] In order to facilitate a more detailed description of the present invention and understanding of the embodiments thereof, in the following, the non-elastic yarn and the elastic yarn are replaced with reference numbers well known to those skilled in the art, that is, the non-elastic yarn is represented by GB1, and the elastic yarn is represented by GB2. The positions of the non-elastic yarn and the elastic yarn are interchangeable.

[0043] At the same time, the following text refers to them as FD FDY nylon (here, FD is the abbreviation for the English term "full dull" and the Chinese translation is "full extinction", FDY is the abbreviation for the English term "fully drawn yarn" and the Chinese translation is "full stretch yarn") and SD DTY nylon (here, SD is the abbreviation for the English term "semi-dull" and the Chinese translation is "semi-extinction", DTY is the abbreviation for the English term "draw texturing yarn" and the Chinese translation is "laid stretch yarn").

[0044] 1 to 9 and Table 1, the breathable and opaque warp knitted fabric of the present invention will be described in more detail.

[0045] In the comparison column of the present invention, a plain weave fabric with the same appearance and good transparency was selected during the specific knitting process, and the breathability was compared with that of the warp knitted fabric of the present invention, which is breathable and opaque, to evaluate the breathability. Also, a conventional mesh fabric with excellent breathability was selected with the warp knitted fabric of the present invention, which is breathable and opaque, to compare the transparency and evaluate the transparency.

[0046] Example 1: A 40-needle warp knitting machine (i.e., the number of needles F = 40 needles) is used, 50D / 48F SD DTY nylon is used for GB1, the wrapping cord is 1-0 / 2-3 / / , 1 perforation 1 open, and the yarn feed amount is 1200 mm / rack, and 30D spandex is used for GB2, the wrapping cord is 0-1 / 3-2 / / , 1 perforation 1 open, and the yarn feed amount is 890 mm / rack, and the needles of GB1 and GB2 are opposite each other.

[0047] Example 2: A 32-needle warp knitting machine (i.e., the number of needles F = 32) was used, 100D / 72F SD DTY polyester was used for GB1, the wrapping cord was 1-0 / 2-3 / / , 1 perforation 1 open, and the yarn feed amount was 1620 mm / rack, and 70D spandex was used for GB2, the wrapping cord was 0-1 / 3-2 / / , 1 perforation 1 open, and the yarn feed amount was 1010 mm / rack, and the needles of GB1 and GB2 were opposite each other.

[0048] Comparative Example 1: A 40-needle warp knitting machine is used, 20D / 34F FD FDY nylon is used for GB1, the wrapping cord is 0-1 / 2-1 / / , fully through, and the yarn feed amount is 910 mm / rack, and 30D spandex is used for GB2, the wrapping cord is 0-1 / 2-1 / / , fully through, and the yarn feed amount is 500 mm / rack.

[0049] Comparative Example 2: A 32-needle warp knitting machine is used, 50D / 96F SD DTY nylon is used for GB1, the wrapping cord is 0-1 / 2-1 / / , fully through, and the yarn feed amount is 970 mm / rack, and 30D spandex is used for GB2, the wrapping cord is 0-1 / 2-1 / / , fully through, and the yarn feed amount is 550 mm / rack.

[0050] Comparative Example 3: A 32-needle warp knitting machine was used, 40D / 34F FD FDY nylon (non-elastic yarn) was used for GB1, the wrapping code was 1-0 / 1-2 / 2-3 / 2-1 / / , 1 perforation 1 empty, and the yarn feed amount was 1100 mm / rack, 40D / 34F FD FDY nylon (non-elastic yarn) was used for GB2, the wrapping code was 2-3 / 2-1 / 1-0 / 1-2 / / , 1 perforation 1 empty, and the yarn feed amount was 1100 mm / rack, 30D spandex (elastic yarn) was used for GB3, the wrapping code was 1-0 / 1-2 / 2-3 / 2-1 / / / , 1 perforation 1 empty, and the yarn feed amount was 650 mm / rack, and 30D spandex was used for GB4, the number of wrappings was 2-3 / 2-1 / 1-0 / 1-2 / / , 1 perforation 1 empty, and the yarn feed amount was 650 mm / rack, and GB4 was an elastic yarn.

[0051] Comparative Example 4: A 28-needle warp knitting machine was used. 40D / 48F FD FDY nylon (non-elastic yarn) was used for GB1, the wrapping code was 1-0 / 1-2 / 2-1 / 2-3 / 2-1 / 1-2 / / , 1 perforation, 1 open, and the yarn feed amount was 930 mm / rack. 40D / 48F FD FDY nylon (non-elastic yarn) was used for GB2, the wrapping code was 2-3 / 2-1 / 1-2 / 1-0 / 1-2 / 2-1 / / , 1 perforation, 1 open, and the yarn feed amount was 930 mm / rack. 420D spandex (elastic yarn) was used for GB3, the wrapping code was 0-0 / 1-1 / / *3, 1 open, 1 perforation, and the yarn feed amount was 85 mm / rack. 420D spandex (elastic yarn) was used for GB4, and the wrapping code was 1-1 / 0-0 / / *3, 1 open, 1 perforation, and the yarn feed amount was 85 mm / rack.

[0052] Sampling: In this experiment, two pieces of fabric, each 0.5 yard long, were taken from the 50 yard roll of fabric, one for the breathability test and the other for the transparency test.

[0053] Breathability test: JIS L 1096 Method A was used, and the breathability test was carried out on the left, center, and right of three pieces of fabric from one sample, and the average value was calculated as the breathability value for each piece. The average value was calculated again for the three pieces of fabric, and the average value was used as the final breathability value for the fabric.

[0054] Anti-see-through test: Based on the National Standards Committee General Document

[2018] No. 68, "Notice on the Issuance of the 2018 Revision Plan for National Standards", the test and evaluation were carried out with reference to the "Inspection and Evaluation of the Anti-see-through Performance of Textile Products" (Plan No.: 20183027--608) compiled by the National Textile Standardization Technical Committee, implemented by the Basic Standards Subcommittee of the National Textile Standards Committee, and drafted by the Shanghai Customs Industrial Products and Raw Materials Inspection Technical Center as the drafting responsible agency.

[0055] The instruments recommended in "Inspection and Evaluation of the Anti-Sheer Performance of Textiles" were adopted, and a D65 10Deg light source was used. In the test, white and black boards must be used for colorimeter calibration. When the shielding ratio procedure is selected, the anti-sheer index S, that is, the ratio of the blackboard brightness value of the backing of the sample to the whiteboard brightness value of the backing of the sample, can be directly measured. In the experiment, for three fabrics of another part of the sample, tests were carried out on the left, middle, and right of each fabric respectively, and the average value was obtained as the anti-sheer index S value of each fabric. Then the average value was obtained again for the three fabrics, and it was used as the final anti-sheer index S value of the fabric.

[0056] Evaluation index: According to the wearing experience statistics of some polyester or nylon underwear, when the ventilation value ≥ 70, it means that the ventilation performance is good; when 70 > ventilation value ≥ 50, the ventilation performance is normal; when the ventilation value < 50, the air permeability is poor.

[0057] The anti-sheer value S is divided into three grades, namely poor, normal, and good. The corresponding S value ranges are S ≤ 93, 93 < S < 97, and S ≥ 97 respectively. The larger the anti-sheer value, the higher the anti-sheer effect. The comparison between air permeability and transparency is as follows.

[0058]

Table 1

[0059] To sum up, as a result of the analysis, the warp knitted fabric with good air permeability and non-sheer property of the present invention has significantly improved air permeability performance compared with plain woven fabric, and has good air permeability. The transparency effect of mesh fabric has been significantly improved, and the transparency performance is good. Therefore, it has been found that it has the effect of good air permeability and non-sheer property. In order to further explain the warp knitted fabric with good air permeability and non-sheer property of the present invention, examples are given below.

[0060] Example 3: As shown in Figure 1, reed GB1 uses a 7-needle closed tricot with a wrapping cord of 1-0 / 6-7 / / , 4-perforation 2-open, and reed GB2 uses a 7-needle open tricot with a wrapping cord of 0-1 / 7-6 / / , 4-perforation 2-open. GB1 and GB2 are on opposite needles, and GB2 is always knitted on the same needle as GB1 yarn.

[0061] Example 4: As shown in Figure 2, reed GB1 uses a 7-needle closed tricot with a wrapping cord of 1-0 / 6-7 / / , 2-perforation 1-open, and reed GB2 uses a 7-needle open tricot with a wrapping cord of 0-1 / 7-6 / / , 2-perforation 1-open. GB1 and GB2 are on opposite needles, and GB2 is always knitted on the same needle as GB1 yarn.

[0062] Example 5: As shown in Figure 3, reed GB1 uses a 6-needle closed tricot with a wrapping cord of 1-0 / 5-6 / / , 4-perforation 1-open, and reed GB2 uses a 6-needle open tricot with a wrapping cord of 0-1 / 6-5 / / , 4-perforation 1-open. GB1 and GB2 are on opposite needles, and GB2 is always knitted on the same needle as GB1 yarn.

[0063] Example 6: As shown in Figure 4, reed GB1 uses a 6-needle closed tricot with a wrapping cord of 1-0 / 5-6 / / , 3-hole 2-open, and reed GB2 uses a 6-needle open tricot with a wrapping cord of 0-1 / 6-5 / / , 3-hole 2-open. GB1 and GB2 are on opposite needles, and GB2 is always knitted on the same needle as GB1 yarn.

[0064] Example 7: As shown in Figure 5, reed GB1 uses a 5-needle closed tricot with a wrapping cord of 1-0 / 4-5 / / , 3-perforation 1-open, and reed GB2 uses a 5-needle open tricot with a wrapping cord of 0-1 / 5-4 / / , 3-perforation 1-open. GB1 and GB2 are on opposing needles, and GB2 is always knitted on the same needle as GB1 yarn.

[0065] Example 8: As shown in Figure 6, reed GB1 uses a 4-needle closed tricot with a wrapping cord of 1-0 / 3-4 / / , 2-perforation 1-open, and reed GB2 uses a 4-needle open tricot with a wrapping cord of 0-1 / 4-3 / / , 2-perforation 1-open. GB1 and GB2 are on opposing needles, and GB2 is always knitted on the same needle as GB1 yarn.

[0066] Example 9: As shown in Figure 7, reed GB1 uses a 3-needle closed tricot with a wrapping cord of 1-0 / 2-3 / / , 1 perforation, 1 open, and reed GB2 uses a 3-needle open tricot with a wrapping cord of 0-1 / 3-2 / / , 1 perforation, 1 open. GB1 and GB2 are on opposite needles, and GB2 is always knitted on the same needle as GB1 yarn.

[0067] Example 10: In the loop diagram shown in Figure 8, three reeds are used, reed GB1 is a non-elastic yarn, the yarn is a coarse yarn Y1, the wrapping code is 1-0 / 2-3 / / , 1 perforation 1 open, reed GB2 is a non-elastic yarn, the yarn is a fine yarn Y2, the wrapping code is 1-0 / 2-3 / / , 1 open 1 perforation, the needles of the reeds GB1 and GB2 are opposite to each other, GB3 is spandex (elastic yarn), the wrapping code is 1-0 / 1-2 / / , full through, this method forms fabric A, and the GB3 yarn of fabric A is hidden under the underside of GB1 and GB2.

[0068] Comparative Example 5: Two combs are used, the roving yarn Y1 is used for GB1, the wrapping cord is 1-0 / 2-3 / / , full-through, and spandex is used for GB2, the wrapping cord is 1-0 / 1-2 / / , full-through, and fabric B is formed.

[0069] When Fabric A and Fabric B have the same density, Fabric A has larger gaps and better breathability than Fabric B. Comparing the reverse lock knit structure adopted by Fabric A with the appearance of the double tricot formed by the structure of Example 9, it is found that within a reasonable process range, the covered area of ​​the yarn is larger and the anti-see-through effect is better.

[0070] It should be noted that, using the above Example 9 as an example, JPEG2025507076000005.jpg1530 is described in detail, and in Example 9, it is described that "reed GB1 adopts a 3-needle closed tricot, wrapping code is 1-0 / 2-3 / / , 1 perforation 1 empty, and reed GB2 adopts a 3-needle open tricot," in which the number of through needles m = 1 (i.e. 1 perforation), the number of non-through needles i = 1 (i.e. 1 empty), the number of tricot needle skips n = 3 (i.e. 3-needle closed tricot), and the finally obtained a is 1. Since other examples can be inferred based on this, a person skilled in the art can understand other examples based on this without any creative labor, and therefore, no further description will be given here.

[0071] Moreover, the structures and principles of the materials, wrapping cords, reeds and tricot weave structures related to the present invention are all well known to those skilled in the art and will not be described in detail here.

[0072] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be realized in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in all respects, the embodiments should be considered as illustrative and not limiting, and the scope of the present invention is limited by the claims, not by the above description. Therefore, all modifications that are within the meaning and scope of the equivalents of the claims are embraced in the present invention. Any drawing signs in the claims should not be considered as limiting the scope of the claims related thereto. Since the above is only a preferred embodiment of the present invention, it is natural that the scope of the present invention cannot be limited by this. Therefore, equivalent modifications based on the claims of the present invention are also considered to be within the scope of the present invention.

Claims

1. 1. A breathable and opaque warp knitted fabric comprising: a fabric body, the fabric body including a non-elastic yarn and an elastic yarn, the non-elastic yarn and the elastic yarn are knitted in a warp-through manner to form a knitted structure, the non-elastic yarn in the knitted structure has a first tricot structure having three or more needles, the elastic yarn in the knitted structure has a second tricot structure, the first tricot structure and the second tricot structure are arranged in the same direction, the knitted structure has a non-through structure, the non-elastic yarn and the elastic yarn are knitted in a warp-through manner with 0≦i≦10 needles to form the knitted structure, i is the number of non-through needles.

2. 2. The breathable and opaque warp knitted fabric according to claim 1, characterized in that the non-elastic yarns include staple yarns and filament yarns, the elastic yarns include polyurethane-based yarns and polyolefin-based yarns, and the positions of the non-elastic yarns and the elastic yarns can be interchanged when specifically knitted.

3. The non-elastic yarn and the elastic yarn are knitted in a warp knitting through manner where i is not 0 needle to form the knitted structure, and the warp knitting through manner of the fabric body is represented by the formula 3. The warp knitted fabric according to claim 1 or 2, wherein m is the number of penetrating needles, n is the number of tricot needle jumps, a is a positive integer, and 1≦i≦10.

4. 4. The air-permeable, opaque warp knitted fabric according to claim 3, wherein the tricot needle jump number is 3≦n≦7.

5. The breathable and opaque warp knitted fabric according to claim 4, characterized in that the non-elastic yarn and the elastic yarn in the knitting structure are further arranged in a tricot structure with the same needle pitch, the non-penetrating manner of the non-elastic yarn and the elastic yarn are the same, and the reed adopted by the non-elastic yarn and the reed adopted by the elastic yarn are arranged in a needle-facing manner.

6. The breathable and opaque warp knitted fabric according to claim 4, characterized in that the inelastic yarns include rovings and fine yarns, the rovings and the fine yarns have different diameters, the diameter of the rovings is larger than the diameter of the fine yarns, and the rovings and the fine yarns in the knitted structure present a non-penetrating combination structure.

7. The non-elastic yarn and the elastic yarn are knitted in a warp knitting through manner with i=0 needles to form the knitted structure, the non-elastic yarn includes a coarse yarn and a fine yarn, the coarse yarn and the fine yarn have different diameters, and the diameter of the coarse yarn is larger than the diameter of the fine yarn.

8. 8. The air-permeable, opaque warp knitted fabric according to claim 7, characterized in that, when the ratio of the yarn feed amount of the coarse yarn to the yarn feed amount of the fine yarn is α, 0.7≦α≦1.

5.

9. The breathable and opaque warp knitted fabric according to claim 8, characterized in that, if the number of the fine yarns between two adjacent roving yarns is A, A≦3, the diameter of the roving yarn is B, and the diameter of the fine yarn is C, B:C≧1.

1.

10. The breathable and opaque warp knitted fabric according to claim 1 or claim 2, characterized in that the knitted structure satisfies the formula D = -1.44G + 77.25, where D is the minimum yarn fineness required to achieve the function, D is in denier, and G is the number of needles on the loom.

11. 3. The breathable and opaque warp knitted fabric according to claim 1 or claim 2, wherein the first tricot weave structure and the second tricot weave structure are one or any combination of a fully open tricot weave structure, a fully closed tricot weave structure, and a 1-open 1-close tricot weave structure.

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