Cooling antibacterial fabric and processing technology thereof

Abstract

The application discloses a cool and antibacterial fabric and a processing technology thereof. The fabric comprises broken carding structures which are woven by warp yarns and weft yarns. The warp yarns are combed cotton yarns, and the weft yarns are core-spun yarns. The core yarns in the core-spun yarns are elastic spandex filaments, and the cladding yarns in the composite core-spun yarns are ethylene nylon composite fiber filaments. The smallest broken carding structure unit of the broken carding structure is interwoven by four warp yarns and four weft yarns. The four weft yarns of the smallest broken carding structure unit are in a structure of three up and one down at the superposition positions with each warp yarn. The four warp yarns of the smallest broken carding structure unit are also in a structure of three up and one down at the participation positions with each weft yarn. The superposition position of the warp yarns is a warp structure point. The ethylene nylon yarns in the fabric can be covered, so that the problem of white exposure of the fabric is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to a cool antibacterial fabric, in particular to a cool antibacterial fabric and a processing technology thereof. BACKGROUND

[0002] Due to the cool function and mildew-resistant and bacteriostatic effect of nylon, manufacturers generally add nylon yarn or nylon composite yarn to the fabric of summer clothes at present to improve the coolness of the clothes after wearing. However, due to the poor dyeing property of nylon material, when the nylon yarn or nylon composite yarn is knitted with other yarns to form a fabric, the nylon yarn or nylon composite yarn in the fabric will form a grayish white color after dyeing, while the other yarns will form a specified color after dyeing. Therefore, the manufacturer needs to perform special treatment on the fabric to remove the "white" problem on the surface of the fabric.

[0003] In view of the above problems, the current solution of manufacturers is to perform original solution coloring on the nylon yarn or nylon composite yarn during the spinning process, so as to spin the nylon yarn or nylon composite yarn into colored fibers. Although this method can avoid the "white" problem of the nylon yarn during subsequent knitting, the cost of original solution coloring will also be greatly increased compared with the normal dyeing process, which does not meet the economic needs of manufacturers.

[0004] Therefore, there is a need for a nylon fabric that can avoid the "white" problem. SUMMARY

[0005] The purpose of the present application is to provide a cool antibacterial fabric and a processing technology thereof. It can cover the nylon yarn in the fabric, thereby avoiding the "white" problem of the fabric.

[0006] The technical solution of the present application is a cool antibacterial fabric and a processing technology thereof, which comprises a broken card weave formed by warp yarns and weft yarns. The warp yarns are combed cotton yarns, and the weft yarns are core-spun yarns. The core yarns in the core-spun yarns are elastic spandex filaments, and the cladding yarns in the composite core-spun yarns are nylon composite fiber filaments. The smallest broken card weave unit of the broken card weave is formed by four warp yarns and four weft yarns. The four weft yarns in the smallest broken card weave unit are in a three-up-one-down structure at the overlapping position with each warp yarn. The four warp yarns in the smallest broken card weave unit are also in a three-up-one-down structure at the position participating with each weft yarn. The overlapping position of the warp yarns is a warp weave point.

[0007] The overlap point of the first column of warp yarns and the second, third, and fourth rows of weft yarns in the smallest card-breaking organization unit is the warp weaving point; the overlap point of the second column of warp yarns and the first, second, and fourth rows of weft yarns in the smallest card-breaking organization unit is the warp weaving point; the overlap point of the third column of warp yarns and the first, third, and fourth rows of weft yarns in the smallest card-breaking organization unit is the warp weaving point; the overlap point of the fourth column of warp yarns and the first, second, and third rows of weft yarns in the smallest card-breaking organization unit is the warp weaving point.

[0008] In the aforementioned cooling antibacterial fabric, the warp yarn is 40-count combed cotton yarn, the elastic spandex yarn has a fineness of 20D, 30D or 40D, the ethylene nylon composite fiber yarn has a fineness of 100D, the warp density of the distressed twill weave is 200 threads / inch, and the warp density of the distressed twill weave is 80 threads / inch.

[0009] In the aforementioned cooling and antibacterial fabric, the blending ratio of ethylene fiber and nylon fiber in the ethylene-nylon composite fiber filament is 40:60.

[0010] The processing technology for a cooling and antibacterial fabric, as described above, includes the following steps:

[0011] ① A type of fabric (grade A) is obtained by weaving warp and weft yarns to form a specified weave structure.

[0012] ②Product A is subjected to alkaline oxygen stacking, bleaching and biological polishing and hair removal processes in sequence to obtain product B;

[0013] ③ Dyeing product B with conventional dyes, so that the warp yarns in product B are in a dyed state after dyeing, while the weft yarns in product B are in a non-dyed state due to the influence of ethylene fibers, thus obtaining product C.

[0014] ④ First, impregnate product C with antibacterial agent, then proceed with drying and softening processes to obtain product D;

[0015] ⑤ Pre-shrink product D to obtain the finished product.

[0016] In the aforementioned processing technology, the dyeing temperature in step ③ and the drying temperature in step ④ are both below 120°C.

[0017] In the aforementioned processing technology, the broken fabric maintains its natural width in steps ① to ④, the width of the D product before pre-shrinking in step ⑤ is 51 to 55 inches, and the width of the D product after pre-shrinking in step ⑤ is 48 to 50 inches.

[0018] In the aforementioned processing technology, step ⑤ involves pre-shrinking the fabric using a pre-shrinking device. The pre-shrinking device includes a conveying roller with a heating chamber in the middle and a discharge mechanism connected to the tail end. A fabric width detection mechanism is located on the outside of the pre-shrinking device. The fabric width detection mechanism includes an mounting roller with a translation tube slidably connected to it. A drive component is connected to the outside of the translation tube. A photoelectric sensor is located at one end of the translation tube, and a detection camera is located at the other end. The photoelectric sensor and the detection camera are irradiated perpendicularly towards the fabric.

[0019] In the aforementioned processing technology, the two ends of the mounting roller are fixedly connected to mounting frames, the driving component is an electric telescopic rod fixed on the mounting frame, the head of the electric telescopic rod is connected to a translation tube, and the photoelectric sensor and the detection camera can be detachably connected to the translation tube.

[0020] In the aforementioned processing technology, the detection method of the width detection mechanism includes the following steps:

[0021] A. Drive the translation tube to move to the right by the driving component, so that the photoelectric sensor is separated from the fabric after the lateral movement, forming the initial detection state, and proceed to step B;

[0022] B. The translation tube is driven to move to the left by the driving component, and the photoelectric sensor is irradiated onto the fabric surface and triggered as the translation tube moves, proceeding to step C;

[0023] C. After the photoelectric sensor is triggered, the detection camera takes pictures and calculates the edge of the fabric, and then adjusts the speed of the conveyor roller according to the calculation results;

[0024] D. After the camera takes a picture, the banner inspection agency returns to the initial inspection state and proceeds to the next round of inspection.

[0025] In the aforementioned processing technology, after the detection camera takes a picture in step C, the detection system compares the fabric edge line in the photo with the fabric edge line in the set image and calculates the offset value between the two fabric edge lines; then, the fabric width is calculated based on the offset value.

[0026] Compared with the prior art, the present invention has the following characteristics:

[0027] (1) This invention weaves warp yarns without ethylene material and weft yarns containing ethylene material into a broken cardboard structure, and combines the optimization of the warp and weft yarn weaving method so that the warp yarns can cover the weft yarns after weaving, that is, effectively prevent the weft yarns from being exposed on the outside, thereby overcoming the problem of white showing on the fabric.

[0028] (2) By optimizing the fineness and density of the yarn, on the one hand, the shrinkage of the fabric can be reduced, thereby avoiding the exposure of the weft yarn during the fabric stretching process and improving the wrapping effect of the warp yarn on the weft yarn; on the other hand, the fabric can be prevented from shrinking excessively during the processing due to its excellent elasticity, resulting in the problem of too small a width.

[0029] (3) By optimizing the structure of the pre-shrinking device and setting the width detection mechanism, the width detection mechanism can also adjust the rotation speed of the conveying roller according to the width size of the fabric when it is discharged, thereby controlling the real-time and closed-loop control of the fabric width and improving the width control effect of the pre-shrinking device; by limiting the structure of the width detection mechanism, the detection stability and accuracy of the fabric width size can be effectively improved, thereby ensuring that the fabric will not be affected by the pre-shrinking or pre-treatment process and the weft yarn will be exposed or the width will be excessively shrunken.

[0030] Therefore, the present invention can cover the ethylene yarn in the fabric, thereby avoiding the problem of white showing through the fabric. Attached Figure Description

[0031] Figure 1 This is a diagram of the tissue structure of the smallest cardiomyocyte breaking unit in this invention;

[0032] Figure 2 This is a schematic diagram of the pre-shrinking device in Example 1;

[0033] Figure 3 This is a side view of the width inspection agency;

[0034] Figure 4 This is a schematic diagram of the structure of Example 2.

[0035] The labels in the attached diagram are: 1-Conveying roller, 2-Heating chamber, 3-Discharge mechanism, 4-Mounting roller, 5-Transfer tube, 6-Drive component, 7-Photoelectric sensor, 8-Detection camera, 9-Mounting frame. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0037] Example 1. A cooling antibacterial fabric, comprising as follows: Figure 1As shown, the structure includes a distressed weave made of warp and weft yarns. The warp yarns are combed cotton yarns, and the weft yarns are core-spun yarns. The core yarn in the core-spun yarn is elastic spandex filament, and the covering yarn in the composite core-spun yarn is a conventional polyethylene nylon composite fiber filament made of a mixture of polyethylene fiber and nylon fiber. The smallest distressed weave unit is woven from four warp yarns and four weft yarns. The four weft yarns of the smallest distressed weave unit have a three-over-one-down structure when they overlap with each warp yarn, and the four warp yarns of the smallest distressed weave unit also have a three-over-one-down structure when they overlap with each weft yarn. The overlapping position of the warp yarns is the warp weave point.

[0038] The overlap point of the first column of warp yarns and the second, third, and fourth rows of weft yarns in the smallest card-breaking organization unit is the warp weaving point; the overlap point of the second column of warp yarns and the first, second, and fourth rows of weft yarns in the smallest card-breaking organization unit is the warp weaving point; the overlap point of the third column of warp yarns and the first, third, and fourth rows of weft yarns in the smallest card-breaking organization unit is the warp weaving point; the overlap point of the fourth column of warp yarns and the first, second, and third rows of weft yarns in the smallest card-breaking organization unit is the warp weaving point.

[0039] The tissue structure diagram of the smallest cardiomyocyte breaking unit is as follows: Figure 1 As shown, Figure 1 In the attached diagram, labels 1, 2, 3, and 4 represent warp yarns, I, II, III, and IV represent weft yarns, and X represents the warp weft point.

[0040] The warp yarn is 40-count combed cotton yarn, the elastic spandex yarn has a fineness of 20D, 30D or 40D, the ethylene nylon composite fiber yarn has a fineness of 100D, the warp density of the distressed twill weave is 200 threads / inch, and the warp density of the distressed twill weave is 80 threads / inch.

[0041] The blending ratio of ethylene fiber and nylon fiber in the ethylene-nylon composite fiber is 40:60.

[0042] The processing technology of the cooling antibacterial fabric includes the following steps:

[0043] ① A type of fabric (grade A) is obtained by weaving warp and weft yarns to form a specified weave structure.

[0044] ②Product A is subjected to alkaline oxygen stacking, bleaching and biological polishing and hair removal processes in sequence to obtain product B;

[0045] ③ Dyeing product B with conventional dyes, so that the warp yarns in product B are in a dyed state after dyeing, while the weft yarns in product B are in a non-dyed state due to the influence of ethylene fibers, thus obtaining product C.

[0046] ④ First, impregnate product C with antibacterial agent, then proceed with drying and softening processes to obtain product D;

[0047] ⑤ Pre-shrink product D to obtain the finished product.

[0048] The dyeing temperature in step ③ and the drying temperature in step ④ are both below 120℃.

[0049] The distressed fabric is kept in its natural width state in steps ① to ④ to alleviate excessive elongation of the distressed fabric under tension; in step ⑤, the width of product D before pre-shrinking is 51 to 55 inches, and the width of product D after pre-shrinking is 48 to 50 inches.

[0050] In step ⑤, the fabric is pre-shrinked using a pre-shrinking device, which is configured as follows: Figure 2 and 3 As shown, the assembly includes a conveyor roller 1, which is a conventional conveyor roller assembly used for fabric conveying and width control. The conveyor roller 1 can control the warp shrinkage of the fabric by adjusting the rotation speed of the front and rear rollers, thereby controlling the fabric width. A heating chamber 2 is provided in the middle of the conveyor roller 1. The heating chamber 2 performs a pre-shrinking process on the fabric using a conventional wet heat pre-shrinking method. A discharge mechanism 3 is connected to the tail of the conveyor roller 1. The discharge mechanism 3 stacks the fabric sequentially in the lower box by swinging. A width detection mechanism for detecting the fabric width is provided on the outer side of the conveyor roller 1 at the front end of the heating chamber 2. The width detection mechanism includes a mounting roller 4, a translation tube 5 is slidably connected to the mounting roller 4, a drive component 6 is connected to the outside of the translation tube 5, a photoelectric sensor 7 is provided at one end of the translation tube 5, and a detection camera 8 is provided at the other end of the translation tube 5. The photoelectric sensor 7 and the detection camera 8 are irradiated perpendicularly towards the fabric. A backlight plate can be set at the edge of the fabric on the side away from the detection camera 8.

[0051] The mounting roller 4 is fixedly connected to the mounting frame 9 at both ends. The driving component 6 is an electric telescopic rod fixed on the mounting frame 9. The head of the electric telescopic rod is connected to the translation tube 5. The photoelectric sensor 7 and the detection camera 8 can be detachably connected to the translation tube 5. The lateral position of the photoelectric sensor 7 and the detection camera 8 can be freely adjusted as needed.

[0052] The testing method of the banner width testing agency includes the following steps:

[0053] A. Driven by the driving component 6, the translation tube 5 moves to the right, so that the photoelectric sensor 7 is separated from the fabric after the lateral movement, forming the initial detection state, and proceeding to step B;

[0054] B. Driven by the driving component 6, the translation tube 5 moves to the left, and the photoelectric sensor 7 moves with the translation tube 5 to irradiate the fabric surface and trigger, proceeding to step C;

[0055] C. After the photoelectric sensor 7 is triggered, the detection camera 8 takes pictures and calculates the edge of the fabric, and then adjusts the speed of the conveyor roller 1 according to the calculation results;

[0056] D. After the inspection camera 8 takes a picture, the banner inspection agency returns to the initial inspection state and proceeds to the next round of inspection.

[0057] In step C, after the detection camera 8 takes a picture, the detection system compares the fabric edge line in the photo with the fabric edge line in the set image and calculates the offset value between the two fabric edge lines; then, the fabric width is calculated based on the offset value.

[0058] The working principle of this invention is as follows: By weaving the warp and weft yarns into a distressed structure using a specific weaving method, the warp yarns, which do not contain polyethylene fibers, can externally cover the weft yarns containing polyethylene fibers. This prevents the gray-white composite core-spun yarn from being exposed and causing white showing in the fabric. Furthermore, by limiting the yarn fineness and weaving density, the shrinkage range of the fabric during processing can be controlled. This reduces fabric width deviation after processing and avoids white showing during the shrinkage and tension of the warp and weft yarns, ensuring the effective covering of the weft yarns by the warp.

[0059] Because the fabric maintains its natural width during the pretreatment process, meaning there is no width control, the fabric cannot maintain a completely consistent width before entering the pre-shrinking device, resulting in some width variation. This means that the fabric width after the pre-shrinking process can only be controlled within a certain range, making it impossible to achieve uniformity in the width of fabric in different warp regions. To address this issue, this application optimizes the pre-shrinking device and incorporates a width detection mechanism located at the front end of the conveyor roller 1. This mechanism detects the fabric width before it enters the pre-shrinking device and adjusts the rotation speed of the conveyor roller 1 in real time based on the current fabric width. Consequently, the operating parameters of the pre-shrinking device can be adjusted in real time based on the fabric width after pre-shrinking, thereby improving the pre-shrinking device's control over the fabric width.

[0060] Example 2. Pre-shrinkage device, configured as follows: Figure 3 and 4As shown, the assembly includes a conveyor roller 1, which is a conventional conveyor roller group used for fabric conveying and width control. The conveyor roller 1 can control the warp shrinkage of the fabric by adjusting the rotation speed of the front and rear rollers, thereby controlling the fabric width. A heating chamber 2 is provided in the middle of the conveyor roller 1. The heating chamber 2 performs a pre-shrinking process on the fabric using a conventional wet heat pre-shrinking method. A discharge mechanism 3 is connected to the tail of the conveyor roller 1. The discharge mechanism 3 stacks the fabric sequentially in the lower box by swinging. A width detection mechanism for detecting the fabric width is provided at the interval between the conveyor roller 1 and the discharge mechanism 3. The width detection mechanism includes a mounting roller 4, a translation tube 5 is slidably connected to the mounting roller 4, a drive component 6 is connected to the outside of the translation tube 5, a photoelectric sensor 7 is provided at one end of the translation tube 5, and a detection camera 8 is provided at the other end of the translation tube 5. The photoelectric sensor 7 and the detection camera 8 are irradiated perpendicularly towards the fabric. A backlight plate can be set at the edge of the fabric on the side away from the detection camera 8.

[0061] The mounting roller 4 is fixedly connected to the mounting frame 9 at both ends. The driving component 6 is an electric telescopic rod fixed on the mounting frame 9. The head of the electric telescopic rod is connected to the translation tube 5. The photoelectric sensor 7 and the detection camera 8 can be detachably connected to the translation tube 5. The lateral position of the photoelectric sensor 7 and the detection camera 8 can be freely adjusted as needed.

[0062] Compared with Example 1, this example detects the fabric width after the pre-shrinking process and adjusts the rotation speed of the conveyor roller 1 based on the detected value, so that it can be controlled based on the change in fabric width after pre-shrinking, thereby realizing closed-loop control of the pre-shrinking device and avoiding the reduction of fabric processing effect due to the difference in pre-shrinking effect.

Claims

1. A cooling and antibacterial fabric, characterized in that: It includes a woven fabric consisting of warp and weft yarns, wherein the warp yarns are combed cotton yarns, the weft yarns are core-spun yarns, the core yarn in the core-spun yarns is elastic spandex filament, and the covering yarn in the core-spun yarns is ethylene nylon composite fiber filament. The processing technology of this cooling and antibacterial fabric includes the following steps: ① A type of fabric (grade A) is obtained by weaving warp and weft yarns to form a specified weave structure. ②Product A is subjected to alkaline oxygen stacking, bleaching and biological polishing and hair removal processes in sequence to obtain product B; ③ Dye product B with conventional dyes so that the warp yarns in product B are in a dyed state after dyeing, while the weft yarns in product B are in a non-dyed state due to the influence of ethylene fibers, thus obtaining product C. ④ First, impregnate product C with antibacterial agent, then proceed with drying and softening processes to obtain product D; ⑤ Pre-shrink product D to obtain the finished product; The fabric is kept in its natural width state in steps ① to ④. In step ⑤, the width of product D before pre-shrinking is 51 to 55 inches, and the width of product D after pre-shrinking is 48 to 50 inches. In step ⑤, the fabric is pre-shrinked by a pre-shrinking device. The pre-shrinking device includes a conveying roller (1), a heating chamber (2) in the middle of the conveying roller (1), and a discharge mechanism (3) connected to the tail of the conveying roller (1). A fabric width detection mechanism for detecting the fabric width is provided on the outside of the pre-shrinking device. The fabric width detection mechanism includes a mounting roller (4), a translation tube (5) slidably connected on the mounting roller (4), a driving component (6) connected to the outside of the translation tube (5), a photoelectric sensor (7) at one end of the translation tube (5), and a detection camera (8) at the other end of the translation tube (5). The irradiation direction of the photoelectric sensor (7) and the detection camera (8) is perpendicular to the fabric. The testing method of the banner width testing agency includes the following steps: A. Drive the translation tube (5) to the right by the drive unit (6), so that the photoelectric sensor (7) is separated from the fabric after the lateral movement, forming the initial detection state, and proceed to step B; B. Drive the translation tube (5) to move to the left by the drive unit (6), and make the photoelectric sensor (7) irradiate the fabric surface and trigger as the translation tube (5) moves, and proceed to step C; C. After the photoelectric sensor (7) is triggered, the detection camera (8) takes pictures and calculates the edge of the fabric, and then adjusts the speed of the conveyor roller (1) according to the calculation results; D. After the inspection camera (8) takes a picture, the banner inspection mechanism returns to the initial inspection state and proceeds to the next round of inspection; In step C, after the detection camera (8) takes a picture, the detection system compares the fabric edge line in the photo with the fabric edge line in the set image and calculates the offset value between the two fabric edge lines; then, the fabric width is calculated based on the offset value.

2. The cooling antibacterial fabric according to claim 1, characterized in that: The smallest unit of the card-breaking structure is woven from four warp yarns and four weft yarns. The four weft yarns of the smallest card-breaking structure have a three-up-one-down structure at the position where they overlap with each warp yarn, and the four warp yarns of the smallest card-breaking structure also have a three-up-one-down structure at the position where they overlap with each weft yarn. The overlapping point of the warp yarns is the warp weave point. The overlap point of the first column of warp yarns and the second, third, and fourth rows of weft yarns in the smallest card-breaking organization unit is the warp weaving point; the overlap point of the second column of warp yarns and the first, second, and fourth rows of weft yarns in the smallest card-breaking organization unit is the warp weaving point; the overlap point of the third column of warp yarns and the first, third, and fourth rows of weft yarns in the smallest card-breaking organization unit is the warp weaving point; the overlap point of the fourth column of warp yarns and the first, second, and third rows of weft yarns in the smallest card-breaking organization unit is the warp weaving point.

3. The cooling antibacterial fabric according to claim 1, characterized in that: The blending ratio of ethylene fiber and nylon fiber in the ethylene-nylon composite fiber is 40:

60.

4. The cooling antibacterial fabric according to claim 1, characterized in that: The dyeing temperature in step ③ and the drying temperature in step ④ are both below 120℃.

5. The cooling antibacterial fabric according to claim 1, characterized in that: The mounting roller (4) is fixedly connected to the mounting frame (9) at both ends. The driving component (6) is an electric telescopic rod fixed on the mounting frame (9). The head of the electric telescopic rod is connected to the translation tube (5). The photoelectric sensor (7) and the detection camera (8) can be detachably connected to the translation tube (5).

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