Anti-counterfeiting fabric and preparation process thereof

Abstract

This invention discloses an anti-counterfeiting fabric and its manufacturing process, comprising a first serrated area and a second serrated area. The first and second serrated areas are staggered and alternately arranged in a cyclical pattern along the fabric width direction and fit together. Each of the first and second serrated areas includes a first unit and a second unit, which are alternately arranged in a cyclical pattern along the fabric length direction. Along the fabric width direction, the first unit located in the first serrated area is connected to the second unit located in the second serrated area, and vice versa. The fabric of this invention forms a uniform height difference, with the fluorescent yarn in the first area positioned in the middle. The raised first unit and the recessed second area form a protective and holding effect on the first area, which can prevent the fluorescent yarn from being exposed and causing snagging, wear, and breakage, while ensuring that the fluorescent yarn is not covered from the front and that ultraviolet light can be successfully incident and excited, and also giving the fabric sufficient strength and elasticity.

Description

Technical Field

[0001] This invention relates to the field of textiles, and more specifically, to an anti-counterfeiting fabric and its preparation process. Background Technology

[0002] Conventional anti-counterfeiting fabrics are mostly woven from fluorescent yarn. However, since the fluorescent yarn is directly exposed on the fabric surface, it is prone to stretching, deformation, and loosening after long-term wear and washing. Furthermore, if it is completely exposed, it is easy to snag, which can lead to the breakage or failure of the fluorescent yarn, reducing both the fabric's performance and its structural stability. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an anti-counterfeiting fabric and its manufacturing process. The first unit uses loop stitching with upper and lower loops, resulting in a tight structure. The first area uses weft insertion, while the second area only uses loop stitching with upper loops, creating a uniform height difference in the fabric. The height difference between the first unit and the first area, and between the first area and the second area, are consistent. The first area uses fluorescent yarn, positioned in the center. The raised first unit and the recessed second area provide protection and hold to the first area, preventing the fluorescent yarn from being exposed. Despite snags, wear, and breakage, the fluorescent yarn remains unobstructed, allowing for successful ultraviolet light excitation. The first unit and second area utilize low-elasticity polyester yarn, ensuring sufficient structural strength and elasticity. The first and second sawtooth areas are arranged in a staggered, alternating pattern, creating a mutually interlocking and pulling overall structure across the fabric's width, preventing localized stress concentration. Furthermore, the interlocking structures within the first and second sawtooth areas physically interlock along the fabric's width, constraining adjacent areas and enhancing overall structural stability while maintaining the fabric's elasticity and softness.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an anti-counterfeiting fabric, comprising a first serrated area and a second serrated area, wherein the first serrated area and the second serrated area are staggered and alternately arranged and fitted along the fabric width direction, wherein each of the first serrated area and the second serrated area includes a first unit and a second unit, wherein the first unit and the second unit are alternately arranged along the fabric length direction, and along the fabric width direction, the first unit located in the first serrated area is connected to the second unit located in the second serrated area, and the second unit located in the first serrated area is connected to the first unit located in the second serrated area.

[0005] The present invention is further configured such that both the first unit and the second unit are parallelograms, the acute angle in the first unit is smaller than the acute angle in the second unit, and the obtuse angle in the first unit is larger than the obtuse angle in the second unit.

[0006] The present invention is further configured such that the second unit includes a first region and a second region, the first region and the second region being arranged alternately and cyclically along the fabric width direction.

[0007] The present invention is further configured such that the first unit and the first region form a height difference H1, the first region and the second region form a height difference H2, and the height difference H1 and the height difference H2 are the same.

[0008] This invention also discloses a process for preparing anti-counterfeiting fabric, comprising the following steps:

[0009] S1: Fiber pretreatment;

[0010] S2: Spinning, the fabric uses 150D / 48F polyester low elastic yarn, 75D / 36F polyester low elastic yarn and 100D / 48F polyester fluorescent filament;

[0011] S3: Needle arrangement, the upper needle plate has 2 needles and the lower needle cylinder has 4 needles. The needle arrangement sequence of the upper needle plate is 121212121212121212121212121212, and the needle arrangement sequence of the lower needle cylinder is 12341234123412432143214321432143;

[0012] S4: Weaving, the fabric has a transverse density of 28-32 warp rows / cm and a longitudinal density of 38-42 rows / cm. The fabric is woven with 16 loops in the transverse direction.

[0013] S5: Unloading and post-processing.

[0014] The present invention is further configured such that the first unit is formed by 8 coils being woven in a horizontal row, the first region is formed by 4 coils being woven in a horizontal row, and the second region is formed by 4 coils being woven in a horizontal row.

[0015] The present invention is further configured such that the first unit is made of 150D / 48F polyester low elastic yarn, the first region is made of 100D / 48F polyester fluorescent filament, and the second region is made of 75D / 36F polyester low elastic yarn.

[0016] The present invention is further configured such that the first coil row, the fourth-fifth coil row, the eighth-ninth coil row, the twelfth-thirteenth coil row, and the sixteenth coil row are woven together to form the first unit; the second coil row, the sixth coil row, the tenth coil row, and the fourteenth coil row are woven together to form the first region; and the third coil row, the seventh coil row, the eleventh coil row, and the fifteenth coil row are woven together to form the second region.

[0017] The present invention is further configured such that the ratio of the coil row of the first unit, the coil row of the first region, and the coil row of the second region is 2:1:1.

[0018] In summary, the present invention has the following beneficial effects:

[0019] 1. The first and second sawtooth zones are arranged in a staggered and alternating manner, so that the fabric forms an overall structure that is interlocked and pulled together in the width direction, avoiding local stress concentration. Each sawtooth zone includes a first unit, a first area, and a second area. The first unit and the second area are made of polyester low-elasticity yarn, so that the concave and convex structure forms a physical interlock along the width direction of the fabric, and constrains the adjacent areas, thereby improving the overall structural stability of the fabric while ensuring the elasticity and softness of the fabric.

[0020] 2. The first unit uses a looped knitting pattern with both upper and lower stitches to make the structure of the first unit tight. The first area uses a weft-inserted weave, while the second area uses a looped knitting pattern with only upper stitches to create a uniform height difference in the fabric. The height difference between the first unit and the first area, as well as between the first area and the second area, remains consistent. The first area uses fluorescent yarn, which is located in the middle. The raised first unit and the recessed second area protect and hold the fluorescent yarn in the first area, preventing the fluorescent yarn from being directly exposed. This solves problems such as snagging and friction, and improves the durability of the fabric's anti-counterfeiting structure.

[0021] 3. The first and second units adopt parallelogram structures with different angles. Through the differentiated design of acute and obtuse angles, a wider and unobstructed light transmission channel is formed between the units, which is conducive to the incident ultraviolet light and the outward radiation of fluorescence, thereby improving the fluorescence brightness and avoiding the dense local coils from blocking the fluorescent yarn. This ensures that the overall fluorescence effect is bright. Combined with the staggered arrangement of serrations, the fluorescent yarn can receive light from different directions, making the fluorescent yarn receive light more comprehensively. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of an anti-counterfeiting fabric in this embodiment;

[0023] Figure 2 for Figure 1 A sectional view along the A-A direction;

[0024] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0025] Figure 4 This is a triangular configuration diagram of an anti-counterfeiting fabric in this embodiment;

[0026] Figure 5 This is a weaving pattern of an anti-counterfeiting fabric in this embodiment.

[0027] Reference numerals: First serrated area 1, Second serrated area 2, First unit 11, Second unit 12, First region 121, Second region 122. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figure 1 — Figure 5 As shown, this embodiment discloses an anti-counterfeiting fabric. The fabric is woven from 150D / 48F polyester low-elasticity yarn, 75D / 36F polyester low-elasticity yarn, and 100D / 48F polyester fluorescent filament. The transverse density of the fabric is 28-32 warp rows / cm, preferably 30 warp rows / cm. The longitudinal density of the fabric is 38-42 rows / cm, preferably 40 rows / cm. The fabric has 16 coils. The horizontal knitting forms the first serrated zone 1 and the second serrated zone 2. Each row of loops includes an upper needle plate and a lower needle cylinder. The upper needle plate has 2 needles arranged in the order 1212121212121212121212121212. The lower needle cylinder has 4 needles arranged in the order 12341234123412432143214321432143. In the 16 rows of loops, the first row... The first unit 11 is formed by weaving together the coil rows, the 4th-5th coil rows, the 8th-9th coil rows, the 12th-13th coil rows, and the 16th coil row. The second unit 12 is formed by weaving together the 2nd-3rd coil rows, the 6th-7th coil rows, the 10th-11th coil rows, and the 14th-15th coil rows. Therefore, the first unit 11 and the second unit 12 are arranged alternately and cyclically along the length of the fabric. In weaving to form the second unit 12, the 2nd coil rows, the 6th coil rows, the 10th coil rows, and the 14th coil rows form the first region 121. The 3rd coil rows, the 7th coil rows, the 11th coil rows, and the 15th coil rows form the second region 122. Therefore, the first unit 11 is formed by weaving together 8 coil rows, the first region 121 is formed by weaving together 4 coil rows, and the second region 122 is formed by weaving together 4 coil rows.

[0030] In the first region 121, neither the upper needle plate nor the lower needle cylinder of the loop rows is knitted. In the second region 122, the upper needle plate has two needles. The loop-forming needles of the upper needle plate in the third loop row are complementary to those in the seventh loop row. The loop-forming needles of the upper needle plate in the eleventh loop row are complementary to those in the fifteenth loop row. The first region 121 is added without knitting. The first region 121 and the second region 122 are located in the second unit 12. In the first unit 11, the loop-forming needles of the upper needle plate and lower needle cylinder in the fourth and fifth loop rows are complementary. The loop-forming needles of the upper needle plate and lower needle cylinder in the eighth and ninth loop rows are complementary. The loop-forming needles of the upper needle plate and lower needle cylinder in the twelfth and thirteenth loop rows are complementary. The 16th row of coils in 11 complements the looping of the needle plate and the lower needle cylinder in the 1st row of coils in the next cycle. Therefore, the first unit 11 and the second unit 12 are misaligned. The first serrated area 1 and the second serrated area 2 both include the first unit 11 and the second unit 12. Therefore, the first serrated area 1 and the second serrated area 2 are arranged alternately and cyclically along the fabric width direction and fit together, so that the fabric forms an overall structure that is mutually interlocked and mutually pulled in the width direction, avoiding local stress concentration. Each serrated area includes the first unit 11 and the second unit 12. The second unit 12 includes the first area 121 and the second area 122, so that the concave and convex structure forms a physical interlock along the fabric width direction, and forms a constraint between adjacent areas, thereby improving the overall structural stability of the fabric while ensuring the elasticity and softness of the fabric.

[0031] The loop formation needles of the 5th row of the first unit 11 are the same as those of the 3rd row of the second region 122. The loop formation needles of the 9th row of the first unit 11 are the same as those of the 7th row of the second region 122. The loop formation needles of the 13th row of the first unit 11 are the same as those of the 11th row of the second region 122. In the next cycle, the loop formation needles of the 1st row of the first unit 11 are the same as those of the 15th row of the second region 122. The loop formation needles of the 4th row of the first unit 11 are complementary to those of the 3rd row of the second region 122. The loop-forming needles of the 8th row of unit 11 are complementary to the loop-forming needles of the 7th row of the second area 122. The loop-forming needles of the 12th row of unit 11 are complementary to the loop-forming needles of the 11th row of the second area 122. The loop-forming needles of the 16th row of unit 11 are complementary to the loop-forming needles of the 15th row of the second area 122. Therefore, the loop-forming needles of the 4th row of unit 11 and the loop-forming needles of the 3rd row of the second area 122 complement each other, forming a reverse loop. The loop-forming needles of the 8th row of unit 11 and the loop-forming needles of the 7th row of the second area 122 are complementary. The needles complement each other to form a reverse loop row. The loop-forming needles of the 12th loop row of the first unit 11 and the loop-forming needles of the 11th loop row of the second region 122 complement each other to form a reverse loop row. The loop-forming needles of the 16th loop row of the first unit 11 and the loop-forming needles of the 15th loop row of the second region 122 complement each other to form a reverse loop row. The second region 122 is located within the second unit 12. Therefore, along the fabric width direction, the first unit 11 located in the first serrated area 1 is connected to the second unit 12 located in the second serrated area 2, and the second unit 12 located in the first serrated area 1 is connected to the first unit 11 located in the second serrated area 2. The needles of the first region 121 are connected to the lower needle cylinder. In the second unit 12, the upper needle plate of the first unit 121 is not knitted, while the upper needle plate and lower needle cylinder of the second unit 122 are knitted. The loop rows of the first unit 121 are sandwiched between the loop rows of the first unit 11 and the loop rows of the second unit 122. Therefore, in the second unit 12, the first unit 121 and the second unit 122 are arranged alternately and cyclically along the fabric width. The other side of the first unit 121 is adjacent to the first unit 11. At the same density, the first unit 11 has a tighter structure due to knitting on both the upper and lower needle cylinders, resulting in fuller and more three-dimensional loops. The second unit 122 has a looser structure due to knitting only on the upper needle plate, resulting in flatter loops.Since neither the upper needle plate nor the lower needle cylinder of the first region 121 is knitted, the yarn in the first region 121 is slightly raised due to the loops of the first unit 11 and the second region 122, thus creating a uniform height difference in the fabric. The first unit 11 and the first region 121 form a height difference H1, and the first region 121 and the second region 122 form a height difference H2. Height differences H1 and H2 are the same. Furthermore, the first region 121 is supported by the complementary loops of the second region 122 and the first unit 11. A clamping structure is formed, with the first unit 11 using 150D / 48F polyester low-elasticity yarn, the first region 121 using 100D / 48F polyester fluorescent filament, and the second region 122 using 75D / 36F polyester low-elasticity yarn. This positions the first region 121 in the middle, thus the raised first unit 11 and the recessed second region 122 protect and clamp the polyester fluorescent filament of the first region 121, preventing direct exposure of the polyester fluorescent filament, solving problems such as snagging and friction, and improving the durability of the fabric's anti-counterfeiting structure.

[0032] Reference Figure 5Because the ratio of the loop rows in the first unit 11, the first region 121, and the second region 122 is 2:1:1, and the upper needle plate has only 2 needles while the lower needle cylinder has 4 needles, the consecutive adjacent loop rows in the first unit 11 (e.g., the 4th and 5th loop rows) are complementary in both the upper and lower needle cylinders. Therefore, during knitting, the first unit 11 has more loops, thus increasing the number of loops in the first unit 11. In the 4th loop row, the upper needle plate uses needle 2 to knit the loop, and the lower needle cylinder uses needles 3 and 4 to knit the loop. In the 5th loop row, the upper needle plate uses needle 1 to knit the loop, and the lower needle cylinder uses needles 1 and 2... The needles are knitted into loops using needles #1. In the 8th loop row, the upper needle plate knits into loops using needles #1, and the lower needle cylinder knits into loops using needles #2 and #3. In the 9th loop row, the upper needle plate knits into loops using needles #2, and the lower needle cylinder knits into loops using needles #1 and #4, and so on. The upper needle plates of adjacent loop rows complement each other. However, when the lower needle plate changes from needles #3 and #4 to needles #1 and #2, the loop distance is larger. After skipping two loop rows (e.g., the 5th and 8th loop rows), the upper needle plate remains the same, but the lower needle plate changes from needles #1 and #2 to needles #2 and #3. At this point, the loops partially overlap and partially follow each other, resulting in a smaller loop distance. The upper needle plate has only two needles, but the upper needle plate of the second region 122's loop row complements the upper needle plate of the partial loop row of the first unit 11. Therefore, the loops in the second region 122 will not have a large difference in distance during knitting. Since neither the upper needle plate nor the lower needle cylinder of the first region 121 is knitted, the upper needle plate of the second region 122's loop row complements the upper needle plate of the partial loop row of the first unit 11, thus clamping the first region 121. Both the first region 121 and the second region 122 are located within the second unit 12. Therefore, both the first unit 11 and the second unit 12 are parallelograms. The acute angles within the first unit 11 are smaller than the acute angles within the second unit 12, and the obtuse angles within the first unit 12 are larger than the obtuse angles within the second unit 12. The obtuse angle within element 12, through the difference between acute and obtuse angles, creates a wider, unobstructed light-transmitting channel between the first unit 11, the first region 121, and the second region 122. This facilitates the incident ultraviolet light and the outward radiation of fluorescence, enhancing fluorescence brightness and preventing localized dense coils from obscuring the polyester fluorescent filament. Combined with the staggered arrangement of the serrations, the polyester fluorescent filament receives light from multiple directions, resulting in more comprehensive light reception. Simultaneously, the alternation of the first unit 11 and the second unit 12 at different angles allows the first unit 11 and the second region 122 to constrain the fluorescent yarn in the first region 121, preventing it from shifting or being crushed. This protects the polyester fluorescent filament while ensuring its long-lasting and stable effect.

[0033] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An anti-counterfeiting fabric, characterized in that, It includes a first sawtooth region (1) and a second sawtooth region (2). The first sawtooth region (1) and the second sawtooth region (2) are arranged alternately and cyclically along the fabric width direction and fit together. The first sawtooth region (1) and the second sawtooth region (2) each include a first unit (11) and a second unit (12). The first unit (11) and the second unit (12) are arranged alternately and cyclically along the fabric length direction. Along the fabric width direction, the first unit (11) in the first sawtooth region (1) is connected to the second unit (12) in the second sawtooth region (2), and the second unit (12) in the first sawtooth region (1) is connected to the first unit (11) in the second sawtooth region (2).

2. The anti-counterfeiting fabric according to claim 1, characterized in that, Both the first unit (11) and the second unit (12) are parallelograms. The acute angle in the first unit (11) is smaller than the acute angle in the second unit (12), and the obtuse angle in the first unit (12) is larger than the obtuse angle in the second unit (12).

3. The anti-counterfeiting fabric according to claim 1, characterized in that, The second unit (12) includes a first region (121) and a second region (122), which are arranged alternately and cyclically along the fabric width direction.

4. The anti-counterfeiting fabric according to claim 3, characterized in that, The first unit (11) and the first region (121) form a height difference H1, and the first region (121) and the second region (122) form a height difference H2, and the height difference H1 and the height difference H2 are the same.

5. A process for preparing anti-counterfeiting fabric according to any one of claims 1-4, characterized in that, Includes the following steps: S1: Fiber pretreatment; S2: Spinning, the fabric uses 150D / 48F polyester low elastic yarn, 75D / 36F polyester low elastic yarn and 100D / 48F polyester fluorescent filament; S3: Needle arrangement, the upper needle plate has 2 needles and the lower needle cylinder has 4 needles. The needle arrangement sequence of the upper needle plate is 121212121212121212121212121212, and the needle arrangement sequence of the lower needle cylinder is 12341234123412432143214321432143; S4: Weaving, the fabric has a transverse density of 28-32 warp rows / cm and a longitudinal density of 38-42 rows / cm. The fabric is woven with 16 loops in the transverse direction. S5: Unloading and post-processing.

6. The preparation process of an anti-counterfeiting fabric according to claim 5, characterized in that, Eight coils are woven in a row to form the first unit (11), four coils are woven in a row to form the first region (121), and four coils are woven in a row to form the second region (122).

7. The preparation process of an anti-counterfeiting fabric according to claim 6, characterized in that, The first unit (11) uses 150D / 48F polyester low elastic yarn, the first region (121) uses 100D / 48F polyester fluorescent filament, and the second region (122) uses 75D / 36F polyester low elastic yarn.

8. The preparation process of an anti-counterfeiting fabric according to claim 6, characterized in that, The first unit (11) is formed by weaving together the first coil row, the fourth and fifth coil rows, the eighth and ninth coil rows, the 12th and 13th coil rows, and the 16th coil row. The first area (121) is formed by weaving together the second coil row, the sixth coil row, the tenth coil row, and the 14th coil row. The second area (122) is formed by weaving together the third coil row, the seventh coil row, the 11th coil row, and the 15th coil row.

9. The preparation process of an anti-counterfeiting fabric according to claim 6, characterized in that, The ratio of the coil rows of the first unit (11), the coil rows of the first region (121), and the coil rows of the second region (122) is 2:1:1.

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