A 3D refreshing knitted fabric

Abstract

This application relates to the field of fabrics, and more specifically, to a 3D breathable knitted fabric. It includes a body, the inner surface of which comprises several knitted units. Each knitted unit includes a first knitted area and a second knitted area. The first knitted area of ​​one unit is connected to the second knitted area of ​​an adjacent unit. The first knitted area is provided with several 3D breathable units, each including a convex portion and a concave portion. The convex portion of one 3D breathable unit is connected to the concave portion of an adjacent 3D breathable unit, creating a wavy, textured 3D structure in the first knitted area. By providing the convex and concave portions, the first knitted area presents a wavy, textured 3D structure, giving the fabric a sense of space. When the human body comes into contact with the fabric, direct contact between the human body and the concave portions of the first and second knitted areas is reduced, resulting in less fabric contact with the human body. This reduces fabric adhesion to the body when sweating and allows for rapid perspiration wicking, preventing a stuffy feeling.

Description

Technical Field

[0001] This application relates to the field of fabrics, and more specifically, to a 3D crisp knitted fabric. Background Technology

[0002] As summer approaches and the weather gets hotter, people generate a lot of heat during their daily outdoor activities, such as walking and going out. When sweat comes into contact with clothing, it tends to stick to the body, which can easily lead to a feeling of stuffiness and discomfort.

[0003] Based on the above problems, some manufacturers use lightweight ice silk fabrics. However, most ice silk fabrics are woven, which has poor breathability. This makes it difficult for heat and sweat to be released quickly. When sweat accumulates, the entire garment can stick to the body, causing discomfort when wearing the clothing.

[0004] Currently, knitted fabrics are also used to improve the breathability of clothing. Knitted fabrics have larger pores and better breathability. However, when there is a lot of sweat, the entire piece of fabric can still be absorbed by the body, resulting in a stuffy feeling. If the pores of knitted clothing are too large, it is easy to see through the fabric. Therefore, other clothes need to be worn, which makes it even more stuffy. Therefore, further research is needed. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a 3D refreshing knitted fabric.

[0006] This application provides a 3D breathable knitted fabric, including a body, the inner surface of which includes a plurality of knitted units, each knitted unit including a first knitted area and a second knitted area, the first knitted area of ​​one knitted unit being connected to the second knitted area of ​​an adjacent knitted unit, the first knitted area being provided with a plurality of 3D breathable units, each 3D breathable unit including a convex part and a concave part, the convex part of one 3D breathable unit being connected to the concave part of an adjacent 3D breathable unit, so that the first knitted area forms a wavy concave-convex 3D structure, the pores of the first knitted area (1) being smaller than the pores of the second knitted area (2).

[0007] The above technical solution presents the beauty of knitting and has better breathability by forming two knitted areas and distributing them alternately. By setting convex and concave parts, the originally flat first knitted area presents a wavy 3D structure. When the human body comes into contact with the inner surface of the fabric, the skin comes into contact with the convex part, and a certain space is formed between the convex part and the second concave part, reducing the contact between the human body and the fabric, thereby improving breathability.

[0008] Furthermore, since the first knitted area and the second knitted area are on the same plane, and the convex part formed by the first knitted area is at a higher horizontal level than the first knitted area, when wearing clothing, the convex part reduces the direct contact between the second knitted area and the concave part of the first knitted area and the human body. Moreover, the contact surface formed by several convex parts has a certain space with several concave parts of the first knitted area and several second knitted areas, which facilitates air convection when the human body sweats, accelerates heat dissipation, and improves the breathability of the cool knitted fabric.

[0009] In summary, by incorporating convex and concave sections, the first knitted area achieves a wavy, textured 3D structure, giving the fabric a sense of space. When the human body comes into contact with the fabric, direct contact between the body and the concave sections of the first and second knitted areas is reduced, resulting in less fabric contact with the body. This reduces fabric adhesion to the body during sweating, allowing for rapid perspiration wicking and preventing stuffiness. Simultaneously, it reduces the risk of revealing clothing due to excessive light transmission.

[0010] Preferably, the inner surface of the body is provided with a transverse shaping area corresponding to the first knitting area. The transverse shaping area is not connected to the first knitting area. The transverse shaping area includes a plurality of shaping lines. The first knitting area has connecting portions on both sides near the second knitting area. One end of one shaping line is connected to the connecting portion on one side of the first knitting area, and the other end of one shaping line is connected to the connecting portion on the other side of the first knitting area.

[0011] By setting several shaping lines, and connecting the horizontal shaping area formed by the shaping lines with the first knitting unit, the shaping lines play a shaping role, thereby reducing the deformation of the wavy 3D structure formed by the convex and concave parts, thus improving the possibility of the breathability of the knitted fabric weakening after long-term use, and at the same time reducing the phenomenon of light leakage in the clothing made of the fabric.

[0012] Preferably, the distance between two adjacent shaping lines corresponding to the convex portion is less than the distance between two adjacent shaping lines corresponding to the concave portion, and the elasticity of the shaping lines is less than the elasticity of the first knitting area.

[0013] Through the above technical solutions, the first knitting area naturally forms a wavy, convex 3D structure without the need for molding or shaping processes. Furthermore, the formed convex 3D structure is not easily formed after multiple washes, allowing the fabric to maintain good breathability for a long time.

[0014] Preferably, the distance between two adjacent shaping lines corresponding to the convex portion is a, and the distance between two adjacent shaping lines corresponding to the concave portion is b, wherein a:b = 1:(1.2-1.8).

[0015] The above spacing ratio results in a stable 3D concave-convex structure with a good sense of space and is not easily deformed.

[0016] Preferably, the width ratio of the first knitting area to the width ratio of the second knitting area is (2-4):1; the ratio of the number of horizontal triangular areas in the first knitting area to the number of horizontal triangular areas in the second knitting area is (7-10):3; and the ratio of the number of vertical triangular areas in the first knitting area to the number of vertical triangular areas in the second knitting area is (10-15):3.

[0017] The ratio of the above triangular areas is within the preferred range of this application, and the resulting fabric has both good breathability and suitable light transmittance, so that the fabric will not show too much light due to excessive light transmittance.

[0018] The weaving method used in this application is compact Siro spinning, which is a spinning method that combines the advantages of compact spinning and Siro spinning. It reduces the twisting triangle zone, allowing the fiber bundles to first pass through a negative pressure airflow to control the fiber aggregation zone as they leave the front roller, forming a relatively compact structure. Then, the two fiber bundles form a V-shaped arrangement in the aggregation zone, avoiding the formation of a spinning triangle zone and thus preventing fiber separation from the yarn.

[0019] Preferably, the first knitting area is a single-sided knitting area, and the second knitting area is a double-sided knitting area.

[0020] The above-mentioned knitting method is the preferred choice for this application. The fabric obtained by the above knitting method has good breathability and suitable light transmission, and will not cause the fabric to show too much light due to excessive light transmission.

[0021] Preferably, the number of stitches in each of the first knitting areas is 34 inches / 5-10 stitches; and the number of stitches in each of the second knitting areas is 34 inches / 25-30 stitches.

[0022] The above-mentioned needle count range is the preferred choice for this application. The resulting fabric has both good breathability and suitable light transmission, and will not cause the fabric to show too much light due to excessive light transmission.

[0023] Preferably, the cool knitted fabric is formed by knitting three yarns, each yarn containing 78%-85% pure cotton, 12-17% polyester and 1-3% spandex; the yarn count is 30-40.

[0024] Fabrics made from the above components are highly absorbent, accelerate the removal of human sweat, and improve the comfort of clothing made from the fabric, making it less likely to feel stuffy or hot during wear.

[0025] Preferably, the refreshing knitted fabric is a refreshing knitted fabric treated with a breathable cooling liquid; the breathable cooling liquid is composed of a cooling agent and water.

[0026] Cooling agents have a cooling effect and can be diluted with water to facilitate surface treatment of cool knitted fabrics. During the treatment process, the cooling agent is adsorbed onto the surface of the cool knitted fabric and, after curing, forms a coating film on the surface of the cool knitted fabric. This coating film has a good moisture absorption effect, further improving the moisture absorption of the cool knitted fabric. This makes the clothing made from the cool knitted fabric have better cooling properties, reducing the tendency of sweat to stick to the clothing when sweating, and improving the comfort of wearing the clothing.

[0027] Preferably, the cooling agent is composed of the following raw materials in parts by weight: 3-5% cooling agent, 0.5-1% emulsifier, 1-3% ethylene glycol, 3-8% water-absorbing coating agent, 0.1-0.3% film-forming agent, 0.05-0.1% ammonium persulfate, 0.1-0.5% surfactant, 10-20% anhydrous ethanol, 5-8% monomer, and the balance being water; the monomer is polyethylene glycol diacrylate and / or acrylamide propyltrimethoxysilane; the water-absorbing coating agent is one or more of polyamide polyamine epichlorohydrin, maleic anhydride chitosan graft copolymer, and poly-γ-glutamic acid.

[0028] Preferably, the cooling agent is prepared by the following method:

[0029] According to the weight percentage, weigh out the monomer, 1 / 3 water, and 1 / 2 emulsifier, mix them evenly, heat to 60-70℃, and stir for 30-50 minutes to obtain mixture A; weigh out the water-absorbing coating agent, 1 / 3 water, anhydrous ethanol, ethylene glycol, and 1 / 2 emulsifier, mix them evenly to obtain mixture B; weigh out the ammonium persulfate, surfactant, 1 / 3 water, and cooling agent, mix them evenly to obtain mixture C;

[0030] Add mixture B to mixture A and stir until homogeneous. Then add mixture C and stir for 1-2 hours. Add the film-forming agent and mix until homogeneous to obtain the cooling agent.

[0031] In the above technical solution, the water-absorbing coating agent has good water absorption, and the use of polyethylene glycol diacrylate and / or acrylamide propyltrimethoxysilane as monomers can react to obtain a cooling agent with good adhesion. Therefore, when the breathable cooling liquid is used to treat the cool knitted fabric, the cooling agent can adhere to the surface of the fabric yarn. After curing, the coating film formed has good cooling effect and water absorption, thus making the fabric have good breathability and cooling effect, reducing the stuffiness of the clothing made from the fabric.

[0032] At the same time, the coating film can also wrap the originally loose yarn to form finer yarn, especially the setting line, thereby improving the breathability of the fabric.

[0033] Preferably, the film-forming agent is Dow DALPAD 292. The cooling agent is a highly concentrated cooling agent (preferably manufactured by Shanghai Hete Chemical Co., Ltd., model COOLM357). The surfactant is sodium dodecyl sulfate. The polyamide polyamine epichlorohydrin is from the Japanese brand Ube 1200; the average molecular weight of poly-γ-glutamic acid is 10,000-20,000. The maleic anhydride-chitosan graft copolymer has an average molecular weight of 100,000-200,000, in which one carboxyl group of maleic anhydride reacts with the amino acylation of chitosan, grafting maleic anhydride onto chitosan, with a grafting rate of 1.2-2.2%.

[0034] In summary, this application has the following beneficial effects:

[0035] By setting convex and concave parts, the first knitted area presents a wavy, convex 3D structure, which gives the fabric a sense of space. When the human body comes into contact with the fabric, it reduces the direct contact between the human body and the concave part of the first knitted area and the second knitted area, thus reducing the amount of fabric in contact with the human body. This reduces the amount of fabric sticking to the human body when sweating, and also allows for rapid sweat wicking, avoiding a stuffy feeling. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the outer surface structure of a 3D refreshing knitted fabric in Example 1.

[0037] Figure 2 This is a schematic diagram of the inner surface structure of a 3D refreshing knitted fabric in Example 2.

[0038] Figure 3 This is a schematic diagram of the inner surface structure of a 3D refreshing knitted fabric when stretched laterally, as described in Example 3.

[0039] Figure 4 This is a schematic diagram of the inner surface structure of a 3D refreshing knitted fabric in Example 3.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. First knitting area; 2. Second knitting area; 3. Convex part; 4. Concave part; 5. Setting line; 6. Connecting part. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1-4 The present application will be further described in detail with reference to the embodiments.

[0043] Example

[0044] Example 1

[0045] This embodiment discloses a 3D lightweight knitted fabric, see [link]. Figure 1The product includes a main body and a refreshing knitted fabric formed by knitting three yarns. Each yarn contains 78%-85% pure cotton, 12%-17% polyester, and 1%-3% spandex, wherein the proportion of pure cotton is preferably 82.9%, polyester 15.7%, and spandex 1.4%. The yarn count can be 30, 32, 35, 38, or 40, and in this embodiment, 32 is preferred. The yarn diameter can be 20D, 3D, 40D, 50D, etc., and in this embodiment, 40D is preferred.

[0046] The inner surface of the body includes several knitting units. Each knitting unit includes a first knitting area 1 and a second knitting area 2. The first knitting area 1 of a knitting unit is connected to the second knitting area 2 of an adjacent knitting unit. The first knitting area 1 is a single-sided knitting area, and the second knitting area 2 is a double-sided knitting area.

[0047] The stitch count of each first knitting area 1 can be 34 inches / 5 stitches, 34 inches / 6 stitches, 34 inches / 7 stitches, 34 inches / 8 stitches, 34 inches / 9 stitches, or 34 inches / 10 stitches; in this application, 34 inches / 8 stitches is preferred. The stitch count of each second knitting area 2 can be 34 inches / 25 stitches, 34 inches / 26 stitches, 34 inches / 27 stitches, 34 inches / 28 stitches, 34 inches / 29 stitches, or 34 inches / 30 stitches; in this embodiment, 34 inches / 28 stitches is preferred. Combined with the fabric structure of this application, the above stitch counts make the fabric less translucent, thus reducing the possibility of exposure. Therefore, garments made from this fabric do not require additional undergarments to prevent exposure during wear.

[0048] The width of the first knitting area is H1, the width of the second knitting area is H1, H1>H2, and the ratio of H1 to H2 can be 2:1, 3:1, or 4:1. In this embodiment, 3:1 is preferred. The mesh size of the first knitting area 1 is smaller than that of the second knitting area 2.

[0049] The ratio of the number of horizontal triangular areas in the first knitting area 1 to the number of horizontal triangular areas in the second knitting area 2 is 7:3, 8:3, 9:3, or 10:3, with 9:3 being preferred in this embodiment. Within the same area, the ratio of the number of vertical triangular areas in the first knitting area 1 to the number of vertical triangular areas in the second knitting area 2 is 10:3, 11:3, 12:3, 13:3, or 15:3, with 12:3 being preferred in this embodiment. The above ratios of the triangular area nodes represent the preferred range of this application, resulting in a fabric that is both breathable and less prone to showing through.

[0050] The first knitting area 1 is provided with several 3D breathable units. Each 3D breathable unit includes a protrusion 3 and a concave part 4. The protrusion 3 of one 3D breathable unit is connected to the concave part 4 of the adjacent 3D breathable unit, so that the first knitting area 1 forms a wave-shaped concave-convex 3D structure.

[0051] Example 1: The principle of a 3D breathable knitted fabric is as follows: A first knitted fabric and a second knitted fabric are obtained by a tight knitting method. Then, the first knitted fabric is formed into a 3D breathable unit by a heating molding method. The convex parts 3 and concave parts 4 are evenly distributed, and the entire first knitted area 1 has a wavy convex-concave 3D structure in the transverse direction. This improves the overall breathability of the fabric and reduces the light transmittance of the fabric, thus reducing the phenomenon of exposure when the clothing made from the fabric is worn.

[0052] Example 2

[0053] The difference between Example 2 and Example 1 is as follows: See Figure 2 The inner surface of the main body, corresponding to the surface of the first knitting area 1, is provided with a transverse shaping area. The transverse shaping area is not connected to the first knitting area 1. The transverse shaping area includes several shaping lines 5. In two adjacent knitting units, the first knitting area 1 has connecting portions 6 on both sides near the second knitting area 2. One end of a shaping line 5 is connected to the connecting portion 6 on one side of the first knitting area 1, and the other end of a shaping line 5 is connected to the connecting portion 6 on the other side of the first knitting area 1. This arrangement makes the protrusions 3 and concave portions 4 in the first knitting area 1 less prone to deformation. Therefore, after the fabric has undergone multiple water treatments, it maintains a better 3D textured structure (the rest is the same as in Embodiment 1).

[0054] Example 2: The principle of a 3D refreshing knitted fabric is as follows: During the knitting process, several shaping lines 5 are formed on the upper surface of the first knitting area 1 (the rest are the same as in Example 1).

[0055] Example 3

[0056] The difference between Example 3 and Example 2 is as follows: See Figure 3 and Figure 4 The elasticity of the shaping line 5 is less than that of the first knitting area 1, and the distance between two adjacent shaping lines 5 corresponding to the convex part 3 is a, and the distance between two adjacent shaping lines 5 corresponding to the concave part 4 is b, wherein a is less than b, and a:b can be 1:1.2, 1:1.4, 1:1.5 or 1.8, and the preferred ratio in this application is 1:1.4.

[0057] The wavy, convex-concave 3D structure of this embodiment is achieved by setting the spacing between the positioning lines of the protrusions 3 and concave parts 4. Specifically, after the fabric is knitted using a tight-knitting process with set parameters, the first knitted area 1 of the fabric has several shaping lines 5. The spacing between two adjacent shaping lines 5 on the corresponding protrusions 3 is smaller than the spacing between two adjacent shaping lines 5 on the corresponding concave parts 4. Since the elasticity of the first knitted area 1 is greater than the elasticity of the shaping lines 5, after knitting, due to the difference in elasticity, the width shrinkage of the first knitted area 1 after elasticity rebound is greater than the shrinkage of the shaping lines 5. In addition, the different spacing between the corresponding parts results in a convex-concave structure on the fabric. The wavy, convex-concave 3D structure can be obtained without subsequent molding processing, and the positioning lines are all suspended on the upper surface of the first knitted area 1.

[0058] In addition, from Figure 3 As can be seen from this embodiment, after the fabric is stretched laterally, the convex portion 3 and concave portion 4 are more obvious, thus clearly showing the internal structure of the fabric. "Laterally" refers to the direction perpendicular to the edge of the fabric.

[0059] Example 3 describes the principle of a 3D breathable knitted fabric: A first knitted fabric and a second knitted fabric are obtained through a tight spun knitting method, forming several shaping lines 5. Because the elasticity of the first knitted area 1 is greater than the elasticity of the shaping lines 5, and the distance between two adjacent shaping lines 5 on the corresponding convex part 3 is smaller than the distance between two adjacent shaping lines 5 on the corresponding concave part 4, the wavy, convex-concave 3D structure is more pronounced when the fabric is stretched laterally. The resulting structure is less prone to deformation after multiple washes and has better breathability.

[0060] Example 4

[0061] The difference between Example 4 and Example 3 is that the refreshing knitted fabric is treated with a cooling agent. The specific treatment process is as follows: 5 kg of cooling agent and 20 kg of water are mixed evenly in a storage tank. The refreshing knitted fabric is then immersed in the storage tank using a conveyor device, ensuring it is completely submerged for 5 minutes. The fabric is then removed, air-dried for 30 minutes, and finally dried at 80°C for 5 minutes to obtain the surface-treated refreshing knitted fabric. The weight of this surface-treated refreshing knitted fabric is 2.3% higher than that of the untreated refreshing knitted fabric.

[0062] This cooling agent is prepared by the following method:

[0063] Weigh 0.8 kg of monomer, 2.47 kg of water, and 0.025 kg of emulsifier into a reaction vessel, mix them evenly, heat to 60°C, and stir at 150 r / min for 50 min to obtain mixture A.

[0064] Weigh 0.3 kg of water-absorbing coating agent, 2.48 kg of water, 1 kg of anhydrous ethanol, 0.1 kg of ethylene glycol, and 0.025 kg of emulsifier, and mix them evenly to obtain mixture B; weigh 0.01 kg of ammonium persulfate, 0.01 kg of surfactant, 2.47 kg of water, and 0.3 kg of cooling agent, and mix them evenly to obtain mixture C.

[0065] Add mixture B to mixture A and continue stirring until it is fully homogeneous. Then add mixture C and continue stirring for 1 hour. Add 0.010 kg of film-forming agent and mix well to obtain a cooling and breathable cooling agent.

[0066] The monomer is polyethylene glycol diacrylate.

[0067] The emulsifier is OP-10.

[0068] The water-absorbing coating agent is a maleic anhydride-chitosan graft copolymer.

[0069] In the embodiments of this application, the preferred brand and model of the film-forming agent is Dow DALPAD 292. The cooling agent is a highly concentrated cooling agent (preferably manufactured by Shanghai Hete Chemical Co., Ltd., model COOLM357). The surfactant is sodium dodecyl sulfate. The polyamide polyamine epichlorohydrin is from the Japanese brand Ube 1200; the average molecular weight of poly-γ-glutamic acid is 10,000-20,000. The average molecular weight of the maleic anhydride chitosan graft copolymer is 100,000-200,000, and the maleic anhydride grafting rate is 1.2-2.2%.

[0070] Example 5

[0071] The difference between Example 5 and Example 4 is that the cooling agent is prepared by the following method:

[0072] Weigh 0.5 kg of monomer, 2.257 kg of water, and 0.04 kg of emulsifier into a reaction vessel, mix them evenly, heat to 65°C, and stir at 150 r / min for 40 min to obtain mixture A.

[0073] Weigh 0.5 kg of water-absorbing coating agent, 2.258 kg of water, 1.5 kg of anhydrous ethanol, 0.2 kg of ethylene glycol, and 0.04 kg of emulsifier, and mix them evenly to obtain mixture B; weigh 0.008 kg of ammonium persulfate, 0.02 kg of surfactant, 2.257 kg of water, and 0.4 kg of cooling agent, and mix them evenly to obtain mixture C.

[0074] Add mixture B to mixture A and continue stirring until it is fully homogeneous. Then add mixture C and continue stirring for 1 hour. Add 0.02 kg of film-forming agent and mix well to obtain a cooling and breathable cooling agent.

[0075] Example 6

[0076] The difference between Example 6 and Example 4 is that the cooling agent is prepared by the following method:

[0077] Weigh 0.3 kg of monomer, 1.978 kg of water, and 0.05 kg of emulsifier into a reaction vessel, mix them evenly, heat to 70°C, and stir at 150 r / min for 40 min to obtain mixture A.

[0078] Weigh 0.5 kg of water-absorbing coating agent, 1.979 kg of water, 2 kg of anhydrous ethanol, 0.3 kg of ethylene glycol, and 0.05 kg of emulsifier, and mix them evenly to obtain mixture B; weigh 0.01 kg of ammonium persulfate, 0.02 kg of surfactant, 1.978 kg of water, and 0.5 kg of cooling agent, and mix them evenly to obtain mixture C.

[0079] Add mixture B to mixture A and continue stirring until it is fully homogeneous. Then add mixture C and continue stirring for 1 hour. Add 0.03 kg of film-forming agent and mix well to obtain a cooling and breathable cooling agent.

[0080] Example 7

[0081] The difference between Example 7 and Example 5 is that the monomer consists of 0.4 kg of polyethylene glycol diacrylate and 0.1 kg of acrylamide propyltrimethoxysilane.

[0082] Example 8

[0083] The difference between Example 8 and Example 7 is that the water-absorbing coating agent is composed of 0.45 kg of polyamide polyamine epichlorohydrin and 0.05 kg of poly-γ-glutamic acid.

[0084] Example 9

[0085] The difference between Example 9 and Example 7 is that the water-absorbing coating agent is composed of 0.1 kg of polyamide polyamine epichlorohydrin and 0.4 kg of maleic anhydride chitosan graft copolymer.

[0086] Example 10

[0087] The difference between Example 10 and Example 7 is that the water-absorbing coating agent is composed of 0.1 kg of polyamide polyamine epichlorohydrin, 0.35 kg of maleic anhydride chitosan graft copolymer and 0.05 kg of poly-γ-glutamic acid.

[0088] Example 11

[0089] The difference between Example 11 and Example 4 is that polyethylene glycol diacrylate is replaced with an equal amount of acrylic acid.

[0090] Example 12

[0091] The difference between Example 12 and Example 4 is that the water-absorbing coating agent is polyethylene glycol.

[0092] Comparative Example

[0093] Comparative Example 1

[0094] The difference between Comparative Example 1 and Example 1 is that the first knitting area does not have a concave-convex structure.

[0095] Comparative Example 2

[0096] The difference between Comparative Example 2 and Example 1 is that, based on Comparative Example 1, the knitting structure of the first knitting area is the same as that of the second knitting area.

[0097] Performance testing

[0098] Detection methods / test methods

[0099] 1. Breathability

[0100] The air permeability of the crisp knitted fabrics obtained in Examples 1-12 and Comparative Examples 1-2 was tested, referring to GB / T5453-1997 (test area: 20cm², test pressure: 100Pa). The specific data are shown in Table 1.

[0101] 1. Deformation resistance

[0102] The light knitted fabrics from Examples 1-12 were used in an experiment with a surface area of ​​1m². 2 Calculate the number of raised areas on the front side of the crisp knitted fabric within the specified area, denoted as F1. Use a weakly alkaline detergent free of enzymes and whitening agents, with a concentration of 2 g / L, a liquor ratio (fabric:wash liquid) of 1:30, a washing temperature of 30℃, a pH value of 9, and a water solution of 30 L. Wash at a medium speed of 800 rpm for 10 minutes, drain, rinse at 300 rpm for 2 minutes, and dehydrate at 1500 rpm for 2 minutes. Air dry or tumble dry. Repeat this washing process 20 times. Then calculate the number of raised areas on the front side of the crisp knitted fabric, denoted as F2. The reduction rate of raised areas = [(F1-F2) / F1]*100%. The higher the reduction rate of raised areas, the worse the deformation resistance.

[0103] 2. Light transmittance

[0104] The fabrics obtained in Examples 1-12 and Comparative Examples 1-2 were cut into 1m*1m test samples. A simulated human hand (18cm long and 8cm wide) was placed on the test table and the entire hand was covered with the test sample, with the hand located in the middle of the fabric. The indoor lighting intensity in the laboratory was 2000 Lux. The shadow outline of the hand was observed. If the shadow outline was clearly visible, it was recorded as unqualified. If the outline was not clearly visible, it was recorded as qualified.

[0105] All the above experiments were performed three times, and the average value was taken. The specific data are shown in Table 1.

[0106] Table 1. Experimental data of Examples 1-12 and Comparative Examples 1-2

[0107] Test Project Breathability (mm / s) Convexity reduction rate (%) Light transmittance Example 1 780.8 33.2 qualified Example 2 785.3 18.8 qualified Example 3 786.2 13.2 qualified Example 4 805.8 8.5 qualified Example 5 812.2 7.3 qualified Example 6 815.6 9.3 qualified Example 7 828.6 7.1 qualified Example 8 834.5 7.5 qualified Example 9 841.2 6.8 qualified Example 10 845.3 6.2 qualified Example 11 798.5 11.6 qualified Example 12 796.7 12.2 qualified Comparative Example 1 683.3 \ Unqualified Comparative Example 2 745.2 \ Unqualified

[0108] Based on Example 1 and Comparative Examples 1-2, and referring to Table 1, it can be seen that the air permeability of Comparative Examples 1-2 is lower than that of Example 1, indicating that the fabric obtained in this application has better air permeability. Furthermore, the light transmittance is substandard, indicating that the fabric obtained in this application has anti-exposure properties.

[0109] Combining Examples 1 and 2 with Table 1, it can be seen that the reduction rate of the protrusion in Example 2 is lower than that in Example 1, indicating that by setting the shaping line, the fabric deformation after multiple washes can be reduced, thus maintaining better breathability.

[0110] Combining Examples 3 and 2 with Table 1, it can be seen that the reduction rate of the protrusion in Example 3 is lower than that in Example 2, indicating that the concave-convex 3D structure formed by Example 3 is stable and less prone to deformation.

[0111] Combining Examples 3 and 4 with Table 1, it can be seen that the reduction rate of the protrusion in Example 4 is lower than that in Example 3, and the breathability is greater than that in Example 3. Therefore, it is shown that the fabric treated with the cooling sensation of this application has better breathability and deformation resistance.

[0112] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A 3D lightweight knitted fabric, comprising a body, characterized in that: The inner surface of the body includes several knitted units, each knitted unit includes a first knitted area (1) and a second knitted area (2). The first knitted area (1) of one knitted unit is connected to the second knitted area (2) of the adjacent knitted unit. The first knitted area (1) is provided with several 3D breathable units. Each 3D breathable unit includes a protrusion (3) and a concave part (4). The protrusion (3) of one 3D breathable unit is connected to the concave part (4) of the adjacent 3D breathable unit, so that the first knitted area (1) forms a wavy convex-concave 3D structure. The pores of the first knitted area (1) are smaller than the pores of the second knitted area (2). The inner surface of the body is provided with a transverse shaping area corresponding to the surface of the first knitting area (1). The transverse shaping area is not connected to the first knitting area (1). The transverse shaping area includes a plurality of shaping lines (5). The first knitting area (1) has connecting parts on both sides near the second knitting area (2). One end of one shaping line (5) is connected to the connecting part on one side of the first knitting area (1), and the other end of one shaping line (5) is connected to the connecting part on the other side of the first knitting area (1). The distance between two adjacent shaping lines (5) corresponding to the convex part (3) is a, and the distance between two adjacent shaping lines (5) corresponding to the concave part (4) is b. a is less than b, and the elasticity of the shaping line (5) is less than the elasticity of the first knitting area (1).

2. The 3D crisp knitted fabric according to claim 1, characterized in that: The distance between two adjacent shaping lines (5) corresponding to the convex part (3) is a, and the distance between two adjacent shaping lines (5) corresponding to the concave part (4) is b, wherein a:b=1:(1.2-1.8).

3. The 3D lightweight knitted fabric according to claim 1, characterized in that: The width ratio of the first knitting area (1) to the width ratio of the second knitting area (2) is (2-4):1; the ratio of the number of horizontal triangular areas in the first knitting area (1) to the number of horizontal triangular areas in the second knitting area (2) is (7-10):3; the ratio of the number of vertical triangular areas in the first knitting area (1) to the number of vertical triangular areas in the second knitting area (2) is (10-15):

3.

4. The 3D crisp knitted fabric according to claim 2, characterized in that: The first knitting area (1) is a single-sided knitting area, and the second knitting area (2) is a double-sided knitting area.

5. The 3D crisp knitted fabric according to claim 1, characterized in that: The number of stitches in each of the first knitting areas (1) is 34 inches / 5-10 stitches; the number of stitches in each of the second knitting areas (2) is 34 inches / 25-30 stitches.

6. The 3D crisp knitted fabric according to claim 1, characterized in that: The refreshing knitted fabric is formed by knitting three yarns, each yarn containing 78%-85% pure cotton, 12-17% polyester and 1-3% spandex; the yarn count is 30-40.

7. A 3D lightweight knitted fabric according to any one of claims 1-6, characterized in that, The refreshing knitted fabric is a refreshing knitted fabric treated with a breathable cooling liquid; the breathable cooling liquid is composed of a cooling agent and water.

8. A 3D lightweight knitted fabric as described in claim 7, characterized in that, The cooling agent is composed of the following raw materials in parts by weight: 3-5% cooling agent, 0.5-1% emulsifier, 1-3% ethylene glycol, 3-8% water-absorbing coating agent, 0.1-0.3% film-forming agent, 0.05-0.1% ammonium persulfate, 0.1-0.5% surfactant, 10-20% anhydrous ethanol, 5-8% monomer, and the balance being water; the monomer is polyethylene glycol diacrylate and / or acrylamide propyltrimethoxysilane; the water-absorbing coating agent is one or more of polyamide polyamine epichlorohydrin, maleic anhydride chitosan graft copolymer, and poly-γ-glutamic acid.

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