Preparation method of sun-proof fabric

Abstract

The present invention relates to the field of textile fabric production, and specifically to a method for preparing sunscreen fabric, comprising the following steps: a. continuously conveying rolled UV-resistant surface layer material and inner layer material in opposite directions and bringing them together on a workbench, wherein a sewing station is provided on the workbench, wherein an input trough is provided on the sewing station for collecting and conveying the UV-resistant surface layer material and inner layer material downward; b. continuously conveying rolled connecting strip material into the sewing station, wherein the connecting strip material is fed into the sewing station along the extension direction of the input trough, wherein a sewing mechanism is provided on the sewing station for sewing the connecting strip to the UV-resistant surface layer and inner layer. The present invention solves the problem of poor breathability and lightness of existing sunscreen fabrics.

Description

Technical Field

[0001] The invention relates to the field of textile fabric production, and in particular to a method for preparing sun-proof fabric. Background Art

[0002] The function of sun-protective clothing is to block direct exposure to ultraviolet rays to protect human skin. Most of them are woven with materials such as polyester fibers that have the effect of reflecting or scattering ultraviolet rays to form fabrics, and sun-protective additives are added to the fabric to form a sun-protective coating on the surface of the fabric to achieve the purpose of isolating ultraviolet rays.

[0003] The existing sun-proof fabric structure is shown in Chinese patent CN 214606303 U, which is a sun-proof and breathable fabric. It includes an inner layer, a moisture-absorbing layer, a hollow support layer and a sun-proof and breathable layer distributed in sequence from the inside to the outside. The moisture-absorbing layer is fixed to the outside of the inner layer, the sun-proof and breathable layer is located on the outside of the moisture-absorbing layer, and the hollow support layer is located between the moisture-absorbing layer and the sun-proof and breathable layer.

[0004] In order to improve additional effects such as breathability while providing sun protection, this type of fabric has a multi-layer structure, but this also leads to a large thickness and overall weight of the entire fabric, which is not only contrary to breathability, but also not light enough. Summary of the Invention

[0005] Therefore, the present invention provides a method for preparing a sun-proof fabric, which solves the problem that the existing sun-proof fabric has poor air permeability and lightness.

[0006] To achieve the above object, the present invention is achieved through the following technical solutions:

[0007] A method for preparing a sun-proof fabric comprises the following steps:

[0008] a. Rolled UV-resistant surface layer material and inner layer material are continuously conveyed in opposite directions and brought together on a workbench, wherein a sewing station is provided on the workbench, and an input trough is provided on the sewing station for collecting and conveying the UV-resistant surface layer material and inner layer material downward;

[0009] b. Taking the rolled connecting strip material and continuously conveying it into the sewing station, the connecting strip material is fed into the sewing station along the extension direction of the input slot, and the sewing station is provided with a sewing mechanism for sewing the connecting strip to the UV-resistant surface layer and the inner layer;

[0010] c. Sewing the connecting strip along its conveying direction via a sewing mechanism to connect it to the UV-resistant surface layer and the inner layer;

[0011] d. Cut off the connecting strip material at the unsewn position;

[0012] e. The sewn anti-ultraviolet surface layer and the inner layer are transported downward and rolled up, and the rolling process repeats the above steps b and c at equal time intervals to obtain the sun-proof fabric.

[0013] Preferably, the conveying direction of the anti-ultraviolet surface layer material and the inner layer material is inclined to the direction of the input groove.

[0014] Preferably, a guide assembly for evenly distributing force on the anti-ultraviolet surface material is provided at the input end of the sewing station, and the guide assembly comprises at least two guide rollers, and the inclination angle of each guide roller to the horizontal plane gradually decreases.

[0015] Preferably, in step a, the anti-ultraviolet surface layer is pretreated by an anti-wrinkle unit, and the anti-wrinkle unit includes at least one group of anti-wrinkle rollers provided on one side surface of the anti-ultraviolet surface layer, and the anti-wrinkle rollers are symmetrically distributed along the center line of the anti-ultraviolet surface layer. When the anti-wrinkle rollers rotate, they drive the anti-ultraviolet surface layer to expand outward along its width direction.

[0016] Preferably, the anti-wrinkle rollers include a first roller group and a second roller group, and the distance between the two rollers of the first roller group is smaller than the distance between the two rollers of the second roller group.

[0017] Preferably, the anti-wrinkle roller includes a first roller group and a second roller group, and the first roller group and the second roller group are respectively arranged on both side surfaces of the fabric.

[0018] Preferably, the first roller group and the second roller group are arranged alternately.

[0019] By adopting the above technical solution, the beneficial effects of the present invention are:

[0020] This technical solution designs a new sewing process based on the sun-proof fabric with a special structure. In terms of fabric structure, a double-layer partially joined fabric with a hollow structural layer is formed. Compared with the traditional single-layer sun-proof fabric, the inner layer can be made of a more skin-friendly and breathable material, which improves the disadvantage that the traditional anti-ultraviolet material cannot further improve the comfort. The inner and outer layers of the material complement each other in terms of function, and both practicality and comfort are taken into account. In particular, when sweating during wearing, the sticky feeling between the traditional anti-ultraviolet material and the human body is reduced; the design of the hollow structural layer can form a hollow breathable structure from the fabric structure, further ensuring the comfort and breathability of the fabric; during production, by adjusting the width of the connecting strip to change the spatial size of the hollow structural layer, the fabric can be applied to the production of clothing of various styles, and has good application prospects;

[0021] During production, a workbench structure with an input slot is used to adapt to the internal structure of the fabric. The two sides of the connecting strip are positioned through the two sides of the input slot, and then connected to the UV-resistant surface layer and the inner layer material through a sewing mechanism located on the workbench. After connection, the bottom is rolled up until the next set connecting strip is pre-set and sewing is carried out at the next position. The whole process is a production line. This work process can greatly improve production efficiency, reduce labor costs, and ensure the quality of the output fabric. Moreover, during production, the gap between the UV-resistant surface layer and the inner layer can be adjusted by adjusting the width of the connecting strip and the size of the part of the connecting strip hanging into the input slot. The adjustment process is simple and can be applied to the requirements of various products for this sun-protection fabric to meet different customer needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the fabric in Example 1 of the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure at A in the middle;

[0024] Figure 3 This is a structural schematic diagram of the preparation process of a fabric according to Example 1 of the present invention;

[0025] Figure 4 This is a schematic structural diagram of the anti-wrinkle treatment of fabric in step a of Example 1 of the present invention;

[0026] Figure 5 This is a schematic diagram of the planar structure of the fabric of Example 2 of the present invention;

[0027] Figure 6 This is a schematic structural diagram of the guiding process of the anti-ultraviolet outer layer in Example 2 of the present invention;

[0028] Figure 7 for Figure 6 Schematic diagram of the structure in the middle B direction.

[0029] Figure numerals: 100, UV-resistant surface layer; 200, inner layer; 201, ventilation hole; 300, connecting strip; 301, connecting part; 302, sewing line; 400, hollow structure layer; 500, edge sealing; 1, workbench; 11, input slot; 2, sewing mechanism; 3, anti-wrinkle unit; 31, first roller group; 32, second roller group; 4, guide roller. DETAILED DESCRIPTION

[0030] The following will describe the implementation methods of the present invention in detail with reference to specific embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0031] Example 1

[0032] refer to Figure 1 and Figure 2 A sun-proof fabric with a width of conventional 110-140 cm can meet the production of a variety of clothing products. The fabric laminate structure includes an anti-ultraviolet surface layer 100 and an inner layer 200. The anti-ultraviolet surface layer 100 and the inner layer 200 are sewn together by a number of evenly distributed connecting strips 300 to form a hollow structure layer 400 located between the anti-ultraviolet surface layer 100 and the inner layer 200. The connecting strips 300 are connected to the anti-ultraviolet surface layer 100 and the inner layer 200. A connecting portion 301 is formed at the connection position, and the cross-section of the connecting strip 300 is a "U"-shaped structure. The connecting portion 301 is arranged at the end position of the "U"-shaped structure, and the surfaces of the anti-ultraviolet surface layer 100 and the inner layer 200 at the connection portion 301 form a sewing line 302 located on the outer surface; wherein, the width of the connecting strip 300 between the connecting portions 301 on both sides is 10 mm, and the width can be any value between 5-15 mm, which can be adjusted according to the different requirements of the output products and the different requirements of the process accuracy.

[0033] In terms of material, the inner layer 200 is made of cotton and linen fibers, and the anti-ultraviolet surface layer 100 is made of polyester fibers; this makes the inner layer 200 more skin-friendly and improves comfort. In addition, a plurality of ventilation holes 201 are provided on the inner layer 200. The ventilation holes 201 adopt a uniform lattice structure, and their apertures can be adjusted according to needs and are not limited here.

[0034] The anti-ultraviolet surface layer 100 is subjected to anti-ultraviolet treatment before sewing, which meets the current production process requirements of the textile field for anti-ultraviolet sun protection; among them, the anti-ultraviolet additives used in the anti-ultraviolet surface layer 100 can be common products such as UV234, UV981 or HTUV100. This technical solution designs a new sewing process based on the sun-proof fabric with a special structure. In terms of fabric structure, a double-layer partially joined fabric with a hollow structure layer 400 is formed. Compared with the traditional single-layer sun-proof fabric, the inner layer 200 can use a more skin-friendly and breathable material, which improves the shortcoming that the traditional anti-ultraviolet material cannot further improve the comfort. The inner and outer layers of materials are matched with each other in function, and both practicality and comfort are taken into account. Especially when sweating while wearing, the sticky feeling between the traditional anti-ultraviolet material and the human body is reduced; the design of the hollow structure layer 400 can form a hollow breathable structure from the structure of the fabric, further ensuring the comfort and breathability of the fabric; during production, by adjusting the width of the connecting strip 300 to change the spatial size of the hollow structure layer 400, the fabric can be suitable for the production of clothing of various types, and has good application prospects.

[0035] Another example Figure 3 As shown, the sun-proof fabric is prepared by the following method, including the following steps:

[0036] a. Rolled UV-resistant surface layer 100 and inner layer 200 materials are continuously conveyed in opposite directions and gathered on a workbench 1. The workbench 1 is provided with a sewing station. The sewing station is provided with an input trough 11 for collecting and conveying the UV-resistant surface layer 100 and inner layer 200 materials downward;

[0037] b. The rolled connecting strip 300 material is continuously conveyed into the sewing station. The connecting strip 300 material is fed into the sewing station along the extension direction of the input slot 11. The sewing station is provided with a sewing mechanism 2 for sewing the connecting strip 300 to the UV-resistant surface layer 100 and the inner layer 200. The sewing mechanism 2 is a common device on the market and will not be described in detail here.

[0038] c. Sewing the connecting strip 300 along its conveying direction via the sewing mechanism 2 to connect it to the UV-resistant surface layer 100 and the inner layer 200;

[0039] d. Cut off the connecting strip 300 material at the unsewn position;

[0040] e. The sewn anti-ultraviolet surface layer 100 and the inner layer 200 are transported downward and rolled up. The rolling process repeats the above steps b and c at equal time intervals to obtain the sun-protective fabric.

[0041] Among them Figure 4 As shown, in step a, the UV-resistant surface layer 100 is pretreated by an anti-wrinkle unit 3. The anti-wrinkle unit 3 includes two sets of anti-wrinkle rollers disposed on one side of the UV-resistant surface layer 100. The anti-wrinkle rollers are arranged symmetrically and obliquely along the centerline of the UV-resistant surface layer 100. When the anti-wrinkle rollers rotate, they drive the UV-resistant surface layer 100 to expand outward along its width. Specifically, the anti-wrinkle rollers include a first roller set 31 and a second roller set 32. The spacing L1 between the two rollers of the first roller set 31 is smaller than the spacing L2 between the two rollers of the second roller set 32. This design enables the fabric to gradually expand outward from the first roller set 31 to the second roller set 32 ​​along the conveying direction and along the fabric's symmetrical center, forming a double-expansion structure, thereby ensuring comprehensive expansion and thus ensuring the anti-wrinkle effect.

[0042] At the same time, the structure of the anti-wrinkle unit 3 can also be adjusted according to actual production needs. The first roller group 31 and the second roller group 32 can be respectively arranged on the two side surfaces of the fabric; or the first roller group 31 and the second roller group 32 can be staggered. Compared with the first embodiment, this structure can apply an expanding force from both sides of the fabric, which is particularly suitable for anti-wrinkle design when the fabric thickness is relatively large. It should be noted that the length and circular diameter of the first roller group 31 and the second roller group 32 can also be designed differently according to needs, as long as the anti-wrinkle function is met.

[0043] During production, the workbench 1 structure with the input slot 11 is used to adapt to the internal structure of the fabric. The two sides of the connecting strip 300 are positioned by the two sides of the input slot 11, and then connected to the anti-ultraviolet surface layer 100 and the inner layer 200 materials through the sewing mechanism 2 located on the workbench 1. After the connection, the bottom is rolled up until the next set connecting strip 300 preset sewing position is in place and then the sewing processing of the next position is carried out. The whole process becomes an assembly line production. This work process can greatly improve production efficiency, reduce labor costs, and ensure the quality of the output fabric; and during production, the interval between the anti-ultraviolet surface layer 100 and the inner layer 200 can be adjusted by adjusting the width of the connecting strip 300 and the size of the part of the connecting strip 300 hanging into the input slot 11. The adjustment process is simple and can be applied to the requirements of various products for this sun-proof fabric to meet different customer needs.

[0044] In this embodiment, the connecting strip 300 extends in a direction parallel to the width of the fabric. Thus, during the sewing process, the connecting strip 300 is fed perpendicularly to the conveying direction of the UV-resistant surface layer 100 and the inner layer 200, facilitating production and the arrangement of related equipment such as sewing machines and unwinding machines.

[0045] Example 2

[0046] refer to Figure 5 Compared to the first embodiment, the connecting strip 300 extends in an oblique direction relative to the width of the fabric. This design allows the sewing line 302 formed at the connecting portion 301 to form an oblique pattern on the fabric surface. The angle of this pattern can be adjusted during production by adjusting the orientation of the UV-resistant surface layer 100. This allows the design of the fabric surface to be altered, enhancing the aesthetics of the finished garment.

[0047] Structurally, the fabric has edge banding 500 sewn onto the outside of the UV-resistant surface layer 100 and the inner layer 200 on both sides. The edge banding 500 wraps around the edges of the UV-resistant surface layer 100 and the inner layer 200 to improve the overall regularity of the fabric and prevent impurities from entering the fabric during transportation.

[0048] Another example Figure 6 、 Figure 7 As shown, the conveying direction of the anti-ultraviolet surface layer 100 material and the inner layer 200 material is inclined to the direction of the input slot 11;

[0049] Structurally, a guide assembly is installed at the input end of the sewing station to ensure uniform stress on the UV-resistant surface layer 100. This guide assembly includes two guide rollers 4, each of which has a gradually decreasing inclination angle with respect to the horizontal plane. Because the UV-resistant surface layer 100 and the inner layer 200 form a certain angle with the extension direction of the input slot 11 of the workbench 1 when they are in the input slot 11, the UV-resistant surface layer 100, a material with high elasticity, is subjected to uneven stress during conveyance. Therefore, corresponding guide rollers 4 are required to adjust the deformation during sewing to ensure the best sewing effect.

[0050] Specific as Figure 7 As shown, the contact ends of the anti-ultraviolet surface layer 100 and the guide roller 4 are end a and end b respectively, the height of end a is greater than the height of end b, and the height difference between the a end and the b end of the two guide rollers 4 is different, so as to ensure that the tension along the width direction of the anti-ultraviolet surface layer 100 is relatively uniform when entering the input groove 11.

[0051] Although the present invention has been particularly shown and described in conjunction with preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made to the present invention without departing from the spirit and scope of the invention as defined in the appended claims, and all such changes are within the scope of protection of the present invention.

Claims

1. A method for preparing a sun-proof fabric, characterized in that: The following steps are involved: a. The rolled anti-ultraviolet surface layer (100) material and the inner layer (200) material are continuously conveyed in opposite directions and gathered on a workbench (1). The workbench (1) is provided with a sewing station, and the sewing station is provided with an input trough (11) for collecting and conveying the anti-ultraviolet surface layer (100) material and the inner layer (200) material downward; b. The rolled connecting strip (300) material is continuously conveyed into the sewing station, and the connecting strip (300) material is input into the sewing station along the length direction of the input slot (11). The sewing station is provided with a sewing mechanism (2) for sewing the connecting strip (300) to the UV-resistant surface layer (100) and the inner layer (200); c. Sewing the connecting strip (300) along its conveying direction via a sewing mechanism (2) to connect it to the anti-ultraviolet surface layer (100) and the inner layer (200); d. cutting the connecting strip (300) material at the unsewn position; e. The sewn anti-ultraviolet surface layer (100) and the inner layer (200) are transported downward and rolled up, and the rolling process repeats the above steps b and c at equal time intervals to obtain the sun-proof fabric.

2. The method for preparing a sun-proof fabric according to claim 1, wherein: The conveying directions of the anti-ultraviolet surface layer (100) material and the inner layer (200) material are arranged obliquely to the length direction and the width direction of the input trough (11).

3. The method for preparing a sun-proof fabric according to claim 2, characterized in that: A guide assembly for evenly applying force to the anti-ultraviolet surface layer (100) is provided at the input end of the sewing station. The guide assembly comprises at least two guide rollers (4), and the inclination angle of each guide roller (4) to the horizontal plane gradually decreases.

4. The method for preparing a sun-proof fabric according to claim 1, wherein: In step a, the anti-ultraviolet surface layer (100) is pre-treated by an anti-wrinkle unit (3), wherein the anti-wrinkle unit (3) comprises at least one group of anti-wrinkle rollers provided on one side surface of the anti-ultraviolet surface layer (100), wherein the anti-wrinkle rollers are symmetrically distributed along the center line of the anti-ultraviolet surface layer (100), and when the anti-wrinkle rollers rotate, they drive the anti-ultraviolet surface layer (100) to expand outward along its width direction.

5. The method for preparing a sun-proof fabric according to claim 4, characterized in that: The anti-wrinkle rollers comprise a first roller group (31) and a second roller group (32), wherein the distance between the two rollers of the first roller group (31) is smaller than the distance between the two rollers of the second roller group (32).

6. The method for preparing a sun-proof fabric according to claim 4, characterized in that: The anti-wrinkle roller comprises a first roller group (31) and a second roller group (32), and the first roller group (31) and the second roller group (32) are respectively arranged on both side surfaces of the fabric.

7. The method for preparing a sun-proof fabric according to claim 6, characterized in that: The first roller group (31) and the second roller group (32) are arranged in an alternating manner.

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