CN217324523U

CN217324523U - Breathable and non-transparent warp knitted fabric

Info

Publication number: CN217324523U
Application number: CN202220492962.3U
Authority: CN
Inventors: 郝萌萌; 胡军岩; 陈长荣
Original assignee: Best Pacific Textile Ltd
Current assignee: Best Pacific Textile Ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-08-30
Anticipated expiration: 2032-03-07

Abstract

The utility model discloses a ventilative non-perspective warp knitting fabric, it includes the fabric body, the fabric body includes inelastic yarn and elastic yarn, inelastic yarn with elastic yarn weaves with the mode of warp knitting yarn threading and forms the structure of weaving, weave in the structure inelastic yarn is the first warp flat weave structure of more than or equal to three needles, weave in the structure elastic yarn is the second warp flat weave structure, first, two warp flat weave structures are syntropy setting, weave and have empty structure of threading in the structure. The utility model discloses a non-elastic yarn and elastic yarn of warp knitting fabric weave with the warp knitting mode of wearing the yarn and form and weave the structure, the utility model discloses the structure is worn to shrink, the flat organizational structure of warp and the sky of elastic yarn, has realized good ventilation effect and has prevented the effect of perspective.

Description

Breathable and non-transparent warp knitted fabric

Technical Field

The utility model relates to a textile fabric especially relates to a warp knitting fabric that can breathe freely and not perspective.

Background

Most of the gram weights of fabrics for sport/leggings in the current market are above 180gsm (grams per square meter), and the fabrics feel very stuffy and have insufficient air permeability when worn in hot summer; when the fabric with the grammage lower than 180gsm (grams per square meter) is used as the fabric, the fabric is too thin, so that the user can easily miss the inside and see the trousers in the process of playing, and the embarrassment is caused, and the privacy of the player is not protected, for example: chinese patent application CN210501675U discloses a "prevent penetrating moisture absorption different ability knitted fabric, which comprises a body, the internal surface of the body is connected with skin-friendly cotton fabric layer through adhesive, the external surface of the skin-friendly cotton fabric layer is connected with pure cotton fiber fabric layer through adhesive, the surface of the pure cotton fiber fabric layer is connected with nylon moisture absorption sweat releasing fabric layer through adhesive. The utility model discloses a close skin cotton fabric layer, played the comfortable effect of wearing, when trickling sweat, the sweat passes through close skin cotton fabric layer and gets into the pure cotton fiber precoat, in the inner chamber of nylon moisture absorption perspire precoat and dacron moisture absorption perspire precoat, the effect of moisture absorption has been played, through the fabric precoat, the effect of transmission sweat has been played, through no elasticity moisture absorption perspire bed of cloth, the effect of perspire has been played, through the bleeder vent, quick drying's effect has been played, the function of moisture absorption is not possessed to current knitted fabric has been solved, lead to the problem that people's sweat can not in time discharge when wearing. The fabric is formed by a skin-friendly cotton fabric layer, a pure cotton fiber fabric layer, a nylon moisture absorption and sweat releasing fabric layer, a terylene moisture absorption and sweat releasing fabric layer, a textile fabric layer and a non-elastic moisture absorption and sweat releasing fabric layer in a multilayer manner, and is connected by using an adhesive, so that the fabric is very thick, and the application range is extremely limited.

In addition, the chinese patent application CN113832592A discloses that "a honeycomb structure breathable cool knitted fabric and clothing includes weaving lines for fabric textile molding, the weaving lines are wound and woven to form a panel, the weaving lines are arranged to be lines for heat dissipation, adjacent weaving lines in the panel are mutually sleeved in series to form a honeycomb groove, and the panel is provided with an anti-stretching structure for toughness and deformation prevention of the honeycomb groove. This application design is woven the line body of lines and is had heat radiation structure, and every is woven the lines and is bent weaving and form continuous honeycomb groove and weave the line and bend the weaving in succession when oneself winding and make itself have the effect of anti-stretching deformation, adjacent weave between the lines carry out the cluster cover weaving through the honeycomb mould and twine between the line body and constitute each other to compile and wind the contact, adjacent weave between the lines winding contact constitutes rhombus anti-stretching groove, make the surface fabric have the anti-stretching effect of high strength, honeycomb's stability has been testified, so that the ventilative nice and cool use of clothing that the surface fabric made. The honeycomb structure is represented by a plurality of honeycomb grooves with equal intervals, so that the honeycomb structure is convenient for ventilation and heat dissipation; although relatively good in terms of breathability; however, due to the honeycomb structure, the fabric is easy to leak during movement, and the anti-perspective performance is poor.

Therefore, there is a need for a warp knit that is both breathable and opaque.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ventilative non-perspective warp knitting, this warp knitting both have good gas permeability, have good perspective effect of preventing again, have ensured still not perspective under ventilative condition.

In order to realize the above-mentioned purpose, the utility model provides a ventilative non-perspective warp knitting fabric, it includes the fabric body, the fabric body includes inelastic yarn and elastic yarn, inelastic yarn with elastic yarn weaves with the warp knitting mode of wearing and forms the structure of weaving, weave in the structure inelastic yarn is the first warp flat weave structure of more than or equal to three needles, weave in the structure elastic yarn is the second warp flat weave structure, first warp flat weave structure and second warp flat weave structure are syntropy and set up, weave and have empty structure of wearing in the structure.

Compared with the prior art, the warp knitting fabric has the inelastic yarn and the elastic yarn, the inelastic yarn and the elastic yarn are knitted in a warp knitting yarn penetrating mode to form a knitting structure, the inelastic yarn in the knitting structure is a first warp flat structure with more than or equal to three needles, meanwhile, the elastic yarn in the knitting structure is a second warp flat structure, and the first warp flat structure and the second warp flat structure are arranged in the same direction; consequently the utility model discloses a shrink of elastic yarn among the warp knitting for inelastic yarn extension line part is crooked hunch-up under the effect of elastic yarn power, draws close each other between yarn and the yarn, owing to have the flat organizational structure of warp simultaneously, makes the many needles warp flat, and partial structure has many extension lines between adjacent coil is indulged, thereby has realized the effect of preventing looking through. Meanwhile, the utility model discloses a structure is worn to sky in having among the warp knitting fabric, consequently adopted the sky mode of wearing when inelastic yarn and elastic yarn weave with the warp knitting mode of wearing, wear the position in the sky, the distance between yarn and the yarn is bigger than what fully worn on horizontal, forms less fabric transverse density, and horizontal scarcity to realized having good ventilation effect. Meanwhile, the utility model discloses the application of mutually combining of structure is worn to inelastic yarn, elastic yarn, the flat organizational structure of warp and sky for it is great to wear position density in succession, and the sky is worn position density less, and density is alternate, except can effectual balanced ventilative and perspective performance, has also reduced fabric unit area's weight, so compare in fully wearing the fabric the utility model discloses a warp knitting fabric structure has the lightweight characteristics.

Preferably, the non-elastic yarn and the elastic yarn of the breathable and non-perspective warp knitted fabric are knitted in a warp knitting yarn threading mode with i being more than or equal to 0 and less than or equal to 10 needles to form the knitted structure, wherein i is the number of empty needles.

Preferably, the utility model discloses a ventilative not perspective warp knitting fabric body warp knitting threading mode satisfies the following formula of formula: a ═ n-1)/(m + i); wherein i is the number of the empty needles, m is the number of the penetrating needles, n is the number of the flat crossing needles, a is a positive integer, and i is more than or equal to 1 and less than or equal to 10.

Preferably, the number of the flat warp threads of the breathable and non-perspective warp knitted fabric is more than or equal to 3 and less than or equal to 7.

Preferably, the utility model discloses a ventilative and perspective-free warp knitting weave in the structure inelastic yarn with elastic yarn still is with the needle pitch warp flat structure setting, inelastic yarn with the same and the sley bar of elastic yarn empty mode of wearing is to the needle relatively.

Preferably, the utility model discloses a ventilative and non-perspective warp knitting the inelastic yarn includes roving and fine yarn, roving with fine yarn diameter is different, weave in the structure roving with fine yarn is the sky and wears collocation structure.

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 yarn threading manner of i ═ 0 needles to form the knitted structure, the non-elastic yarn includes a thick yarn and a thin yarn, and the thick yarn and the thin yarn are different in diameter.

Preferably, the number of the fine yarns between two adjacent coarse yarns of the breathable and opaque warp knitted fabric is A, and A is less than or equal to 3; the diameter of the thick yarn is B, the diameter of the thin yarn is C, B: c is more than or equal to 1.1.

Preferably, the ratio of the yarn feeding amount of the thick yarn to the yarn feeding amount of the thin yarn of the breathable and opaque warp-knitted fabric is alpha, and alpha is more than or equal to 0.7 and less than or equal to 1.5.

Preferably, the woven structure of the breathable and opaque warp knit fabric of the present invention satisfies the following formula: d ═ 1.44G + 77.25; wherein D is the fineness of the lowest yarn for achieving the function, and the unit of D is DENIER (English: DENIER for short); g is the number of needles of the loom.

Preferably, the first warp flat weave structure and the second warp flat weave structure of the breathable and non-perspective warp knitted fabric of the present invention are one of a full-open warp flat weave structure, a full-closed warp flat weave structure, an open warp flat weave structure and a closed warp flat weave structure or any combination thereof.

Preferably, the fabric gram weight of the fabric body of the breathable and non-see-through warp-knitted fabric is E, and E is more than or equal to 50gsm and less than or equal to 250 gsm.

Preferably, the number of the needles in one inch of the fabric body of the breathable and opaque warp knitted fabric is F, and F is more than or equal to 28 needles and less than or equal to 50 needles.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 3 of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 4 of the present invention.

Fig. 3 is a schematic structural diagram of embodiment 5 of the present invention.

Fig. 4 is a schematic structural diagram of embodiment 6 of the present invention.

Fig. 5 is a schematic structural view of embodiment 7 of the present invention.

Fig. 6 is a schematic structural diagram of embodiment 8 of the present invention.

Fig. 7 is a schematic structural diagram of embodiment 9 of the present invention.

Fig. 8 is a schematic structural view of embodiment 10 of the present invention.

Fig. 9 is a schematic structural diagram of comparative example 5 of the present invention.

Description of reference numerals: y1 is a roving yarn and Y2 is a spun yarn.

Detailed Description

The technical solution of the embodiment of the present invention is clearly and completely described below with reference to the specific embodiment and the accompanying drawings, and the technical solution of the present invention is explained and explained. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements throughout.

The utility model discloses a ventilative non-perspective warp knitting includes the fabric body, and this fabric body includes inelastic yarn and elastic yarn, and inelastic yarn and elastic yarn weave with the warp knitting threading mode and form the structure of weaving, weave in the structure inelastic yarn is the first warp flat weave structure of more than or equal to three needles, weave in the structure elastic yarn is the second warp flat weave structure, and this first warp flat weave structure is the syntropy setting with the second warp flat weave structure, it has empty structure of wearing to weave in the structure. Therefore, the warp knitting fabric has the inelastic yarns and the elastic yarns, the inelastic yarns and the elastic yarns are knitted in a warp knitting yarn penetrating mode to form a knitting structure, the inelastic yarns in the knitting structure are in a first warp flat texture structure with more than or equal to three needles, meanwhile, the elastic yarns in the knitting structure are in a second warp flat texture structure, and the first warp flat texture structure and the second warp flat texture structure are arranged in the same direction; consequently the utility model discloses a shrink of elastic yarn among the warp knitting for inelastic yarn extension line part is crooked hunch-up under the effect of elastic yarn power, draws close each other between yarn and the yarn, owing to have the flat organizational structure of warp simultaneously, makes the many needles warp flat, and partial structure has many extension lines between adjacent coil is indulged, thereby has realized the effect of preventing looking through. Meanwhile, the utility model discloses a structure is worn to sky in having among the warp knitting fabric, consequently adopted the sky mode of wearing when inelastic yarn and elastic yarn weave with the warp knitting mode of wearing, wear the position in the sky, the distance between yarn and the yarn is bigger than what fully worn on horizontal, forms less fabric transverse density, and horizontal scarcity to realized having good ventilation effect. Meanwhile, the utility model discloses the application of mutually combining of structure is worn to inelastic yarn, elastic yarn, the flat organizational structure of warp and sky for it is great to wear position density in succession, and the sky is worn position density less, and density is alternate, except can effectual balanced ventilative and perspective performance, has also reduced fabric unit area's weight, so compare in fully wearing the fabric the utility model discloses a warp knitting fabric structure has the lightweight characteristics.

For further improvement the utility model discloses a gas permeability with prevent perspective effect, preferred person, the utility model discloses a fabric body warp knitting mode of ventilative non-perspective warp knitting satisfies the following formula of formula: a ═ n-1)/(m + i); wherein i is the number of empty needles, m is the number of penetrating needles, n is the number of flat crossing needles, a is a positive integer, and i is more than or equal to 1 and less than or equal to 10.

More specifically, the air permeability and the anti-perspective effect of the woven structure formed by selecting the inelastic yarns and the elastic yarns and weaving the inelastic yarns and the elastic yarns in a warp knitting yarn penetrating mode with the number of i being more than or equal to 1 and less than or equal to 10 are more remarkable, and meanwhile, the fabric body can be ensured to have enough strength and practicability. Further, the utility model discloses a non-elastic yarn and elastic yarn in the structure of knitting of ventilative non-perspective warp knitting still are with the gauge needle setting, and this non-elastic yarn and elastic yarn empty mode of wearing the same and the sley bar is to the right needle relatively. Preferably, the inelastic yarn of the breathable and opaque warp knitted fabric of the present invention includes a thick yarn and a thin yarn, the thick yarn and the thin yarn have different diameters, and the thick yarn and the thin yarn in the knitted structure are in a hollow-through matching structure; the utility model discloses a non-elastic yarn adopts the collocation use of roving and fine yarn, choose for use current roving and the fine yarn suitable send the yarn volume than can, suitable send the yarn volume than will make the fine yarn hold the yarn space little, unnecessary space forms the hole, has increased ventilation effect, and roving and fine yarn collocation simultaneously compare in the collocation use of the collocation of the yarn of current same specification have bigger fabric surface evaporation area, thereby make the utility model discloses a warp knitting still has good quick-drying effect under the effect that has good gas permeability and prevent perspective effect. Meanwhile, the coarse yarn and the fine yarn are in idle penetration matched with the spun yarn added at the idle penetration position, so that the shielding effect can be further improved.

More specifically, the utility model discloses a ventilative and nontransparent warp knitting the inelastic yarn with the elastic yarn is woven with the warp knitting threading mode of i ═ 0 needle and is formed the structure of knitting, inelastic yarn includes roving and fine yarn, roving with fine yarn diameter is different. The utility model discloses a non-elastic yarn adopts the collocation use of roving and fine yarn, chooses for use roving and fine yarn to send the ratio of yarn volume to be alpha, 0.7 is less than or equal to alpha and is less than or equal to 1.5, chooses for use the ratio of sending the yarn volume in this within range will to make fine yarn hold the yarn space little, unnecessary space forms the hole, has increased ventilation effect, and roving and fine yarn collocation simultaneously compare in the collocation use of the yarn of current same specification have bigger fabric surface evaporation area, thereby make the utility model discloses a warp knitting still has good quick-drying effect under the effect that has good gas permeability and prevents perspective effect. Meanwhile, the coarse yarn and the fine yarn are in empty penetration matching, and the spun yarn is added at the empty penetration position, so that the shielding effect can be further improved.

Further provides the air permeability, the perspective effect and the quick-drying effect of the utility model; preferably, n of the breathable and opaque warp knitted fabric of the present invention is less than or equal to 7. The utility model discloses a ventilative non-perspective warp knitting weave the structure and satisfy following formula: d ═ 1.44G + 77.25; wherein D is the fineness of the lowest yarn for achieving the function, and the unit of D is DENIER (English: DENIER for short); g is the number of needles of the loom.

Preferably, the first warp flat weave structure and the second warp flat weave structure of the breathable and opaque warp knitted fabric of the present invention are one of a full-open warp flat weave structure, a full-closed warp flat weave structure, an open-close warp flat weave structure, or an arbitrary combination thereof.

Preferably, the number of the needles of the breathable and opaque warp knitted fabric of the present invention within one inch of the fabric body is F, and F is equal to or less than 28 needles and equal to or less than 50 needles.

For further understanding of the present invention and its embodiments, the non-elastic and elastic yarns are replaced by symbols known to those skilled in the art, namely: the non-elastic yarn is indicated in GB1 and the elastic yarn is indicated in GB 2; the positions of the non-elastic and elastic yarns may be interchanged.

At the same time. Hereinafter, FD FDY nylon (wherein FD is an abbreviation for Fulldull in English, and Chinese is translated into full dull, FDY is an abbreviation for Fully draw yarn in English, and Chinese is translated into Fully drawn yarn); SD DTY nylon (wherein SD is short for semi-dull and Chinese is translated into semi-dull, and DTY is short for Draw texturing yarn and Chinese is translated into Draw textured yarn).

The present invention will be described in more detail with reference to fig. 1-9 and the table, wherein the warp knitting fabric is air permeable and opaque:

in the comparison column of the utility model, when specifically weaving, the plain cloth with the same appearance and good perspective is selected to be respectively compared with the breathable and non-perspective warp-knitted fabric of the utility model for air permeability and the air permeability is evaluated; choose for use the screen cloth that current air permeability is excellent with the utility model discloses a perspective contrast is done to ventilative non-perspective warp knitting to assess perspective.

Example 1: the method is characterized in that a 40-needle warp knitting machine is used (namely, the needle number F is 40 needles), 50D/48F SD DTY nylon is adopted in GB1, the yarn laying number is 1-0/2-3//, 1 is penetrated by 1 empty, the yarn feeding amount is 1200 mm/wax gram, 30D spandex is adopted in GB2, the yarn laying number is 0-1/3-2//, 1 is penetrated by 1 empty, the yarn feeding amount is 890 mm/wax gram, and GB1 and GB2 are opposite to needles.

Example 2: the method is characterized in that a 32-needle warp knitting machine is used (namely, the needle number F is 32 needles), 100D/72F SD DTY terylene is adopted in GB1, the yarn laying number is 1-0/2-3//, 1 is penetrated by 1 empty yarn, the yarn feeding amount is 1620 mm/wax gram, 70D spandex is adopted in GB2, the yarn laying number is 0-1/3-2//, 1 is penetrated by 1 empty yarn, the yarn feeding amount is 1010 mm/wax gram, and GB1 and GB2 are opposite to needles.

Comparative example 1: a40-needle warp knitting machine is used, 20D/34F FD FDY nylon is adopted in GB1, yarn laying number is 0-1/2-1//, full penetration and yarn feeding amount are 910 mm/wax, 30D spandex is adopted in GB2, yarn laying number is 0-1/2-1//, full penetration and yarn feeding amount are 500 mm/wax.

Comparative example 2: a32-needle warp knitting machine is used, GB1 adopts 50D/96F SD DTY nylon, the yarn laying number is 0-1/2-1//, full penetration, the yarn feeding amount is 970 mm/wax, GB2 adopts 30D spandex, the yarn laying number is 0-1/2-1//, the full penetration yarn feeding amount is 550 mm/wax.

Comparative example 3: a 32-needle warp knitting machine is used, GB1 adopts 40D/34F FD FDY nylon (inelastic yarn), the yarn laying number is 1-0/1-2/2-3/2-1//, 1 wears 1 empty, the yarn feeding amount is 1100 mm/wax gram, GB2 adopts 40D/34F FD FDY nylon (inelastic yarn), the yarn laying number is 2-3/2-1/1-0/1-2//, 1 wears 1 empty, the yarn feeding amount is 1100 mm/wax gram, GB3 adopts 30D spandex (elastic yarn), the yarn laying number is 1-0/1-2/2-3/2-1//, 1 wears 1 empty, the yarn feeding amount is 650 mm/wax gram, GB4 adopts 30D spandex, the yarn laying number is 2-3/2-1/1-0/1-2/, 1 wears 1 empty, the yarn feeding amount is 650 mm/wax gram, GB4 is an elastic yarn.

Comparative example 4: a28-needle warp knitting machine is used, GB1 adopts 40D/48F FD FDY nylon (inelastic yarn), yarn laying numbers are 1-0/1-2/2-1/2-3/2-1/1-2//, 1 penetrates 1 empty, the yarn feeding amount is 930 mm/wax, GB2 adopts 40D/48F FD FDY nylon (inelastic yarn), yarn laying numbers are 2-3/2-1/1-2/1-0/1-2/2-1//, 1 penetrates 1 empty, the yarn feeding amount is 930 mm/wax, GB3 adopts 420D spandex (elastic yarn), yarn laying numbers are 0-0/1-1// -3, 1 empty 1 penetrates, the yarn feeding amount is 85 mm/wax, GB4 adopts 420D spandex (elastic yarn), yarn laying numbers are 1-1/0-0// -3, 1 empty and 1 through, and the yarn feeding amount is 85 mm/wax.

Sampling: in the experiment, from 50 yardage rolls, front, middle and rear 3 sections are taken, 0.5 yardage is respectively taken, 2 parts are taken, 1 part is used for air permeability test, and 1 part is used for perspective test.

And (3) testing air permeability: adopting JIS L1096 Method A, carrying out air permeability test on the left, middle and right of 3 pieces of fabrics of 1 part of the sample, and obtaining an average value as the result of the air permeability value of each piece; and the air permeability values of the 3 pieces of fabric are averaged to be used as the final air permeability value of the fabric.

Anti-perspective test: according to the Notification about issuing the 2018 national standard system revision plan of the State Commission's general of Standard & Commission [2018]68, the test evaluation is carried out by referring to detection and evaluation of the textile see-through prevention performance (plan No. 20183027-608) which is called by the national Committee of textile standardization technology, executed by the national Committee of Standard Commission of textile standardization, and drafted by Shanghai customs industry and raw material detection technology center.

A white board and a blackboard for calibrating a colorimeter are required in the test by adopting an instrument method recommended by 'detection and evaluation of anti-perspective performance of textiles' and using a D6510 Deg light source. The covering rate program is selected, so that the anti-perspective index S can be directly measured and is the ratio of the brightness value of the sample backing blackboard to the brightness value of the sample backing whiteboard. In the experiment, the left, middle and right sides of each piece of fabric of 3 pieces of fabric of another 1 part of sample are tested, and the average value is obtained to be used as the anti-perspective index S value of each piece of fabric; and calculating the average value of the 3 fabrics to be used as the final anti-perspective index S value of the fabric.

Evaluation indexes are as follows: the wearing experience of some polyester-polyurethane or nylon-polyurethane close-fitting fabrics is counted, and when the air permeability value is more than or equal to 70, the corresponding air permeability is good; when the air permeability value is more than 70 and is more than or equal to 50, the air permeability is general; when the air permeability value is less than 50, the air permeability is poor.

The anti-perspective value S is divided into three grades which are poor, common and good, the S value range S which corresponds to the S value S is less than or equal to 93, the S is more than 93 and less than 97, the S is more than or equal to 97, and the larger the anti-perspective value is, the better the anti-perspective effect is. Breathability is compared to see-through as follows:

to sum up, the analysis can know, the utility model discloses a ventilative inservision's warp knitting has obvious improvement to plain cloth air permeability, and air permeability is good, has obvious improvement to screen cloth perspective effect, and perspective performance is good, so has good ventilative inservision effect. In order to further illustrate the breathable and see-through warp-knitted fabric of the invention, further illustration of the exemplary embodiments is continued below.

Example 3: as shown in figure 1, a guide bar GB1 adopts 7-needle closed warp flat, yarn laying numbers are 1-0/6-7//, 4 threads and 2 spaces, a guide bar GB2 adopts 7-needle open warp flat, yarn laying numbers are 0-1/7-6//, 4 threads and 2 spaces, and GB1 and GB2 are oppositely aligned with needles, so that GB2 and GB1 yarns are knitted on the same needles all the time.

Example 4: as shown in figure 2, the guide bar GB1 adopts 7-needle closed warp flat, the yarn laying number is 1-0/6-7//, 2 is threaded for 1 empty, the guide bar GB2 adopts 7-needle open warp flat, the yarn laying number is 0-1/7-6//, 2 is threaded for 1 empty, and GB1 and GB2 are oppositely aligned, so that GB2 and GB1 yarns are always knitted on the same needles.

Example 5: as shown in figure 3, the guide bar GB1 adopts 6-needle closed warp flat, the yarn laying number is 1-0/5-6//, 4 is penetrated and is 1 empty, the guide bar GB2 adopts 6-needle open warp flat, the yarn laying number is 0-1/6-5//, 4 is penetrated and is 1 empty, and GB1 and GB2 are oppositely aligned, so that GB2 and GB1 yarns are knitted on the same needles all the time.

Example 6: as shown in figure 4, the guide bar GB1 adopts 6-needle closed warp flat, the yarn laying number is 1-0/5-6//, 3 is threaded for 2 empty, the guide bar GB2 adopts 6-needle open warp flat, the yarn laying number is 0-1/6-5//, 3 is threaded for 2 empty, and GB1 and GB2 are oppositely aligned, so that GB2 and GB1 yarns are always knitted on the same needles.

Example 7: as shown in figure 5, the guide bar GB1 adopts 5-needle closed warp flat, the yarn laying number is 1-0/4-5//, 3 is threaded for 1 empty, the guide bar GB2 adopts 5-needle open warp flat, the yarn laying number is 0-1/5-4//, 3 is threaded for 1 empty, and GB1 and GB2 are oppositely aligned, so that GB2 and GB1 yarns are always knitted on the same needles.

Example 8: as shown in figure 6, the guide bar GB1 adopts 4-needle closed warp flat, the yarn laying number is 1-0/3-4//, 2 is threaded for 1 empty, the guide bar GB2 adopts 4-needle open warp flat, the yarn laying number is 0-1/4-3//, 2 is threaded for 1 empty, and GB1 and GB2 are oppositely aligned, so that GB2 and GB1 yarns are always knitted on the same needles.

Example 9: as shown in figure 7, the guide bar GB1 adopts 3 needles with closed warp flat, the lapping yarn number is 1-0/2-3//, 1 is threaded and 1 is empty, the guide bar GB2 adopts 3 needles with open warp flat, the lapping yarn number is 0-1/3-2//, 1 is threaded and 1 is empty, and GB1 and GB2 are oppositely opposite to each other, so that GB2 and GB1 yarns are knitted on the same needles all the time.

Example 10: as shown in the coil diagram of FIG. 8, 3 guide bars are used, guide bar GB1 is inelastic yarn, and the yarn is roving Y ₁ The yarn laying number is 1-0/2-3//, 1 is threaded 1 hollow, the guide bar GB2 is inelastic yarn, and the yarn is spun yarn Y ₂ The yarn laying number is 1-0/2-3//, 1 empty 1 is penetrated, the guide bars of GB1 and GB2 are opposite to the opposite needle, GB3 is spandex (elastic yarn), the yarn laying number is 1-0/1-2//, full penetration, the mode forms fabric A, and GB3 yarn of the fabric A is hidden under GB1 and GB 2.

Comparative example 5: using two combs, GB1 using rovings Y ₁ The number of the lapping yarn is 1-0/2-3//, full through, the GB2 adopts spandex, and the number of the lapping yarn is 1-0/1-2//, full through, so that the fabric B is formed.

When the densities of the fabric A and the fabric B are the same, the fabric A has larger pores and has better air permeability than the fabric B; compared with the double-warp flat appearance formed by the structure of the embodiment 9, the warp pile flat structure adopted by the fabric A has the advantages that the yarn coverage is larger and the anti-perspective effect is better within a reasonable process range.

It is noted that the formula a is (n-1)/(m + i) as exemplified in example 9 above; as will be described in detail, in example 9, "the guide bar GB1 uses 3 needles closed warp flat, the yarn laying number 1-0/2-3//, 1 thread 1 empty, and the guide bar GB2 uses 3 needles open warp flat", where the number of threads m is 1 (i.e., 1 thread), the number of empty needles i is 1 (i.e., 1 empty), the number of warp flat needles n is 3 (i.e., 3 needles closed warp flat), and the final number of a is 1. On the basis, other embodiments can be realized by analogy, and on the basis, the understanding of other embodiments can be realized by a person skilled in the art without any creative work, so that the detailed description is omitted.

In addition, the structures and the principles of the materials, the yarn laying numbers, the guide bars, the warp flat weave structures, etc. related to the present invention are well known to those skilled in the art, and will not be described in detail herein.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Therefore, the above disclosure is only for the preferred embodiment of the present invention, and certainly should not be construed as limiting the scope of the invention, which is defined by the claims and their equivalents.

Claims

1. The breathable and non-perspective warp knitted fabric is characterized by comprising a fabric body, wherein the fabric body comprises non-elastic yarns and elastic yarns, the non-elastic yarns and the elastic yarns are knitted in a warp knitting yarn threading mode to form a knitted structure, the non-elastic yarns in the knitted structure are in a first warp flat stitch structure with three or more needles, the elastic yarns in the knitted structure are in a second warp flat stitch structure, the first warp flat stitch structure and the second warp flat stitch structure are arranged in the same direction, and the knitted structure is provided with a hollow-through structure.

2. The air permeable and opaque warp knit fabric according to claim 1, wherein the inelastic yarn and the elastic yarn are knit with a warp knit stitch of 0. ltoreq. i.ltoreq.10 needles to form the knit structure, i being the number of empty needles.

3. The air-permeable and opaque warp knit fabric according to claim 2, wherein the warp knit threading manner of the fabric body satisfies the following formula: a ═ n-1)/(m + i); wherein i is the number of empty needles, m is the number of penetrating needles, n is the number of flat crossing needles, a is a positive integer, and i is more than or equal to 1 and less than or equal to 10.

4. The air permeable and opaque warp knit fabric according to claim 3, wherein the number of warp flat cross needles is 3. ltoreq. n.ltoreq.7.

5. The breathable and opaque warp knit fabric of claim 3 wherein said inelastic yarns and said elastic yarns in said knit structure are also disposed in a co-gauge warp flat configuration, said inelastic yarns and said elastic yarns being air-laid in the same manner and with the guide bars opposing the opposing needles.

6. The breathable and opaque warp knit fabric of claim 3 wherein said inelastic yarns comprise coarse yarns and fine yarns, said coarse and fine yarns having different diameters, said coarse and fine yarns being in a miss-fit arrangement in said knit structure.

7. The air permeable and opaque warp knit fabric of claim 2 wherein said inelastic yarn and said elastic yarn are knit in a warp knit with i-0 stitches to form said knit structure, said inelastic yarn comprising a coarse yarn and a fine yarn, said coarse yarn and said fine yarn being of different diameters.

8. An air-permeable and opaque warp knit fabric according to claim 7, wherein the ratio of the yarn feeding amounts of the thick yarns to the thin yarns is α, 0.7 ≦ α ≦ 1.5.

9. The air-permeable and opaque warp knit fabric according to claim 8, wherein the number of the fine yarns between two adjacent coarse yarns is A, A ≦ 3; the diameter of the thick yarn is B, the diameter of the thin yarn is C, B: c is more than or equal to 1.1.

10. The air permeable, opaque warp knit fabric of claim 1 wherein said knit structure satisfies the formula: d ═ 1.44G + 77.25; wherein D is the fineness of the lowest yarn for achieving the function, and the unit of D is denier; g is the number of needles of the loom.

11. The air permeable and radiopaque warp knit fabric of claim 1 wherein the first and second warp flat knit structures are one or any combination of a full aperture warp flat knit structure, a fully closed warp flat knit structure, an open-close warp flat knit structure.