Double-layer fabric processing device and processing method

Abstract

The present invention provides a double-layer fabric processing device and method, which sequentially comprises a feed module, a corona treatment module, a modification treatment module, a thermal lamination module, and a winding module; the feed module comprises a first feed roller for conveying a first fabric and a second feed roller for conveying a second fabric; the corona treatment module comprises a corona box and a corona assembly disposed within the corona box; the modification treatment module comprises a first chamber and a second chamber, the first chamber being provided with a first impregnation device for applying a first modifier, and the second chamber being provided with a second impregnation device for applying a second modifier; the thermal lamination module comprises a third feed roller for conveying an adhesive film, a merging pair of rollers, and at least one hot pressing unit. The double-layer fabric processing device provided by the present invention enables continuous fabric modification and lamination, enabling continuous production of double-layer fabrics with anisotropic properties on both sides, significantly improving production efficiency compared to existing technologies.

Description

Technical Field

[0001] The present invention relates to the technical field of fabric processing, and in particular to a double-layer fabric processing device and a processing method. Background Art

[0002] Double-layer fabric is a common product in the textile field. It is usually formed by transferring and flattening the first fabric and the second fabric through steel rollers and then hot-pressing and compounding them with glue. For example, the patent document with patent number CN213167300U discloses a double-layer decorative fabric compounding device, which includes a shell, a cleaning chamber, a gluing chamber, a compounding chamber, an air cooling chamber and a winding chamber. When in use, glue is applied on the sides of the two layers of fabric that are close to each other through the gluing chamber, and then the two layers of fabric are pressed together through the compounding chamber, so that the two layers of fabric are compounded into one through glue.

[0003] During processing, fabrics sometimes require modification treatments, such as hydrophobic treatment and antistatic treatment. Such modification treatments typically include the following steps: dissolving a material with special functions in a solvent to form a finishing solution, then impregnating the fabric with the finishing solution, and obtaining the modified fabric after the finishing solution dries. To give double-layer fabrics more functions, they can also be modified. Due to the structural characteristics of double-layer fabrics, the first and second fabrics can be treated with different types of finishing solutions, resulting in different properties on each side of the double-layer fabric, further enriching the fabric's functionality. However, to achieve this, three sets of equipment are typically required: two sets of equipment are used to treat the first and second fabrics with finishing solutions, respectively, to obtain the modified first and second fabrics, and the third set of equipment is used to coat the fabrics with glue and composite the first and second fabrics. The entire process is relatively complex, with low production efficiency, making it difficult to achieve continuous production. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a double-layer fabric processing device and a processing method, which can obtain double-layer fabrics with double-sided anisotropy and high production efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A double-layer fabric processing device comprises, in sequence, a feeding module, a corona treatment module, a modification treatment module, a thermal composite module and a winding module; the feeding module comprises a first feeding roller for conveying a first fabric and a second feeding roller for conveying a second fabric; the corona treatment module comprises a corona box and a corona assembly arranged in the corona box; the modification treatment module comprises a first chamber and a second chamber, the first chamber being provided with a first wetting device for applying a first modifier, and the second chamber being provided with a second wetting device for applying a second modifier; the thermal composite module comprises a third feeding roller for conveying a film, a merging pair of rollers and at least one hot pressing unit.

[0007] In the present invention, the first fabric and the second fabric are first introduced into the corona treatment module by two feeding rollers. After being treated with the corona component in the corona box, the adsorption performance of the first fabric and the second fabric can be improved. Then the first fabric and the second fabric are separated and introduced into the first chamber and the second chamber of the modification treatment module respectively. In the first chamber, the first impregnation device applies the first modifier to the first fabric so that the first modifier impregnates the first fabric. In the second chamber, the second impregnation device applies the second modifier to the second fabric so that the second modifier impregnates the second fabric. Then the first fabric and the second fabric are exported from the modification treatment module and merged into the middle of the merging roller of the thermal composite module. At the same time, the adhesive film is transported to the middle of the merging roller by the third feeding roller, so that a pre-composite body with a structure of the first fabric-adhesive film-second fabric is formed at the merging roller. Then the pre-composite body is treated by the hot pressing roller so that the adhesive film melts and bonds the first fabric and the second fabric into one. After cooling and winding, a double-layer fabric is obtained. In the prior art, after the first fabric and the second fabric are impregnated with the modifier by immersion or spraying, it is usually necessary to first dry the first fabric and the second fabric separately, and then apply glue on the sides of the first fabric and the second fabric close to each other, and finally heat-press the first fabric and the second fabric into one. If the hot pressing is performed directly without drying, on the one hand, it will affect the progress of the gluing process, and on the other hand, it will cause the two different modifiers to penetrate each other between the first surface layer and the second surface layer, and the modifiers may affect each other, resulting in unsatisfactory modification effect. In some other embodiments, the first modifier and the second modifier can also be replaced by the first dye and the second dye. The mixing of the first dye and the second dye will also result in poor dyeing effect. In the present invention, the modifier is first applied through an impregnation device. Preferably, in some embodiments, a spray device can be used to impregnate the fabric in a spraying manner. The spray device can easily control the amount of modifier applied and can control the moisture in the fabric. In other embodiments, the fabric can also be immersed in an immersion tank filled with the modifier to immerse the modifier. When using this scheme, it is usually necessary to set a pair of rollers at the discharge end of the immersion tank to squeeze out excess moisture in the fabric to control the moisture content of the fabric; after the modification treatment, the first fabric and the second fabric are directly conveyed to the merging roller and form a pre-composite with the film. Under the separation effect of the film, the modifiers in the first fabric and the second fabric will not penetrate each other, so the modification effect can be guaranteed, and part of the modifier will adhere to the surface of the film. In the subsequent hot pressing roller compounding process, the modifier attached to the surface of the film is integrated into the molten film, so that the concentration of the modifier at the interface between the fabric and the film forms a natural transition, thereby improving the modification effect. In summary, the application of the scheme of the present invention can simplify the process and device structure, reduce production costs, and the modification and compounding can be carried out continuously, with high production efficiency, which is conducive to industrial production.

[0008] Furthermore, the corona box is provided with a first pair of rollers on the feeding side for introducing the first fabric and the second fabric, and a second pair of rollers on the discharging side for discharging the first fabric and the second fabric.

[0009] Furthermore, the feed side and the discharge side of the first chamber are both provided with a first guide roller for guiding the first fabric into and out of the first chamber, and the feed side and the discharge side of the second chamber are both provided with a second guide roller for guiding the second fabric into and out of the second chamber.

[0010] Furthermore, the heat treatment module also includes a preheating box provided with a heating device, and the preheating box is arranged between the merging roller and the hot pressing roller.

[0011] Furthermore, the preheating box is provided with a preheating fan. The preheating box can initially dry the first and second fabrics to avoid water extrusion during the subsequent hot pressing process. Preferably, a hot air blower is used for drying. The preheating fan can remove some free particles formed on the surface of the fabrics after drying, facilitating subsequent processes.

[0012] Furthermore, the thermal composite module includes a main roller with a relatively large diameter and a movable pressure roller with a relatively small diameter arranged around the main roller. The movable pressure roller can move toward or away from the main roller. The hot pressing unit is formed by any movable pressure roller and the main roller.

[0013] Furthermore, the first infiltration equipment includes a first sprayer for spraying the first modifier, and the second infiltration equipment includes a second sprayer for spraying the second modifier.

[0014] Furthermore, the first sprayer and the second sprayer each include two spray heads arranged opposite to each other.

[0015] Another object of the present invention is to provide a double-layer fabric processing method based on the above-mentioned double-layer fabric processing device, the method comprising the following steps:

[0016] S1, preparing a first feed roller with a first fabric and a second feed roller with a second fabric, feeding the first fabric and the second fabric into a corona box of a corona treatment module through the first feed roller and the second feed roller, and performing corona treatment on the first fabric and the second fabric through a corona assembly;

[0017] S2: After the first fabric and the second fabric are guided out of the corona treatment module, they are respectively introduced into the first chamber and the second chamber of the modification treatment module. The first impregnation device provided in the first chamber applies a first modifier to the first fabric, and the second impregnation device provided in the second chamber applies a second modifier to the second fabric.

[0018] S3, the first fabric and the second fabric processed in step S2 and the adhesive film from the third feeding roller are brought together at a merging roller to form a pre-composite body, wherein the pre-composite body is composed of the adhesive film in the middle layer and the first fabric and the second fabric in the two side layers;

[0019] S4. The pre-composite is introduced into a thermal composite module, and the adhesive film is melted by a hot pressing unit to bond the first fabric and the second fabric to form a double-layer fabric. The double-layer fabric is then rolled up by a rolling module to complete the processing of the double-layer fabric.

[0020] Furthermore, in step S4, the thermal composite module further includes a preheating box provided with a preheating fan, and the pre-composite body is first preheated by the preheating box and then composite-molded by the hot pressing unit.

[0021] In summary, the application of the present invention can achieve the following beneficial effects:

[0022] 1. The double-layer fabric processing device provided by the present invention can continuously complete the modification and compounding of fabrics, and realize the continuous production of double-layer fabrics with double-sided anisotropy. Compared with the existing technology, the production efficiency is significantly improved and the production cost is reduced.

[0023] 2. The double-layer fabric processing device provided by the present invention directly conveys the first fabric and the second fabric after modification to the merging roller, and forms a pre-composite with the film. Under the separation effect of the film, the modifiers in the first fabric and the second fabric will not penetrate each other, thereby ensuring the modification effect, and part of the modifier will adhere to the surface of the film. In the subsequent hot pressing roller compounding process, the modifier attached to the surface of the film is integrated into the molten film, so that the concentration of the modifier at the interface between the fabric and the film forms a natural transition, thereby improving the modification effect.

[0024] 3. In some embodiments, the present invention may be provided with a preheating box to preheat and preliminarily dry the pre-composite body and remove some free particles on the surface of the pre-composite body to facilitate the implementation of subsequent processes.

[0025] 4. In some embodiments, the present invention first uses a sprayer to apply the modifier, so that the moisture content of the fabric is easy to control without using a pair of rollers to squeeze out excess moisture from the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of the double-layer fabric processing device in Example 1;

[0027] Figure 2 This is a schematic structural diagram of the double-layer fabric processing device in Example 2;

[0028] In the figure, 1-feeding module, 11-first feed roller, 12-second feed roller, 2-corona treatment module, 21-corona box, 22-corona assembly, 23-first pair of rollers, 24-second pair of rollers, 3-modification treatment module, 31-first chamber, 311-first sprayer, 312-first immersion tank, 32-second chamber, 321-second sprayer, 322-second immersion tank, 33-first guide roller, 34-second guide roller, 4-thermal composite module, 41-third feed roller, 42-merging pair of rollers, 43-preheating box, 44-hot air blower, 45-main roller, 46-movable pressure roller, 5-winding module, L1-first fabric, L2-second fabric, L3-adhesive film, L4-pre-composite. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example 1

[0032] This embodiment provides a double-layer fabric processing device, which consists of a feeding module 1, a corona treatment module 2, a modification treatment module 3, a thermal composite module 4 and a winding module 5 connected in sequence. The device can be used to modify two separate layers of fabrics separately and finally composite the two layers of fabrics into one to obtain a double-layer fabric.

[0033] The feeding module 1 includes a first feeding roller 11 and a second feeding roller 12. The first fabric L1 is drawn out by the first feeding roller and conveyed to a subsequent mechanism, and the second fabric L2 is drawn out by the second feeding roller and conveyed to a subsequent mechanism.

[0034] The corona treatment module 2 includes a corona box 21, a corona assembly 22 arranged in the corona box, and a first pair of rollers 23 and a second pair of rollers 24 respectively arranged on both sides of the corona box. The first pair of rollers receives the fabrics from the first feed roller and the second feed roller, and conveys the first fabric and the second fabric into the corona box in one pass. Discharge occurs between the two motors of the corona assembly in the corona box, thereby enhancing the surface activity of the first fabric and the second fabric. Subsequently, the first fabric and the second fabric are guided out of the corona box in one pass through the second pair of rollers.

[0035] The modification module 3 includes a housing and guide rollers on either side of the housing to control the entry and exit of fabrics. The housing has a first chamber 31 and a second chamber 32. The first chamber has first guide rollers on both the inlet and outlet sides for guiding the first fabric in and out of the first chamber, while the second chamber has second guide rollers on both the inlet and outlet sides for guiding the second fabric in and out of the second chamber. The first chamber is provided with a first impregnation device comprising two opposed first sprayers 311. During use, the two first sprayers spray a first modifier onto both sides of the first fabric, allowing the first modifier to impregnate the first fabric. The second chamber is provided with a second impregnation device comprising two opposed second sprayers 321. During use, the two second sprayers spray a second modifier onto both sides of the second fabric, allowing the second modifier to impregnate the second fabric. In some embodiments, receiving trays may be provided in the first and second chambers to collect modifiers not sprayed onto the fabrics, thereby enabling recycling and reducing production costs.

[0036] The thermal lamination module 4 includes a third feed roller 41, a merging pair of rollers 42, a preheating box 43, and a hot pressing roller. The third feed roller is used to provide the adhesive film L3. After the first and second fabrics L1 and L2 are discharged from the modification module, they are combined with the adhesive film L3 and placed on the merging pair of rollers to form a pre-composite L4 with a structure of first fabric-adhesive film-second fabric. The pre-composite then enters the preheating box 43 and undergoes preliminary drying and heating under the action of a preheating fan 44. While drying and heating, the preheating fan can also remove free particles from the surface of the pre-composite and discharge and collect them through the air outlet, facilitating the implementation of subsequent processes. The hot pressing unit includes a main roller 45 with a larger diameter and several movable pressing rollers 46 arranged sequentially around the main roller along the material conveying direction. Each movable pressing roller, in conjunction with the main roller, forms a hot pressing unit.

[0037] The winding module 5 includes at least one winding roller. In some embodiments, a cooling device or a dust removal device may also be provided to perform post-processing on the double-layer fabric after thermal bonding.

[0038] This embodiment also provides a method for using the above device, which is as follows:

[0039] S1, prepare a first feeding roller 11 with a first fabric L1 and a second feeding roller 12 with a second fabric L2, feed the first fabric and the second fabric into the corona box 21 of the corona treatment module through the first feeding roller and the second feeding roller, and perform corona treatment on the first fabric and the second fabric through the corona assembly 22;

[0040] S2. After the first fabric and the second fabric are guided out of the corona treatment module, they are respectively introduced into the first chamber 31 and the second chamber 32 of the modification treatment module. The first sprayer provided in the first chamber sprays the first modifier onto the first fabric so that the first modifier infiltrates the first fabric. The second sprayer provided in the second chamber sprays the second modifier onto the second fabric so that the second modifier infiltrates the second fabric.

[0041] S3, the first and second fabrics processed in step S2 and the adhesive film L3 from the third feeding roller 41 converge to the merging roller 42 to form a pre-composite body L4, which is composed of the adhesive film in the middle layer and the first and second fabrics in the two side layers;

[0042] S4, introducing the pre-composite into the preheating box 43, using the preheating fan 44 to preheat and preliminarily dry the pre-composite, and remove free particles on the surface of the pre-composite;

[0043] S5. The pre-composite is introduced into a heat-composite module. The adhesive film is melted and the first fabric and the second fabric are bonded together by a plurality of heat-pressing units formed by a main roller 45 and a movable pressing roller 46 to obtain a double-layer fabric. The double-layer fabric is wound up by a winding module to complete the processing of the double-layer fabric.

[0044] Example 2

[0045] This embodiment provides a double-layer fabric processing device based on embodiment 1. Compared with embodiment 1, this device adopts other methods to modify the first fabric and the second fabric, as follows:

[0046] In this embodiment, a first soaking tank 312 is provided in the first chamber 31, and a first modifier is contained in the first soaking tank. The first fabric is introduced into the first soaking tank through a plurality of guide rollers so that the first modifier impregnates the first fabric; a second soaking tank 322 is provided in the second chamber 32, and a second modifier is contained in the second soaking tank. The second fabric is introduced into the second soaking tank through a plurality of guide rollers so that the second modifier impregnates the second fabric. In addition, a pair of rollers for squeezing out excess liquid are provided at the discharge ends of the first soaking tank and the second soaking tank to facilitate subsequent processes. The double-layer fabric processing device provided in this embodiment is suitable for occasions such as fabric dyeing. The impregnation treatment through the soaking tank is more uniform and thorough than that of a sprayer. The disadvantage is that the fabric needs to be squeezed out of excess liquid through the pair of rollers, and the moisture content of the fabric is difficult to control.

[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double-layer fabric processing device, characterized by: It includes a feeding module, a corona treatment module, a modification treatment module, a thermal composite module and a winding module in sequence; the feeding module includes a first feeding roller for conveying the first fabric and a second feeding roller for conveying the second fabric; the corona treatment module includes a corona box and a corona assembly arranged in the corona box; the modification treatment module includes a first box chamber and a second box chamber, the first box chamber is provided with a first wetting device for applying a first modifier, and the second box chamber is provided with a second wetting device for applying a second modifier; the thermal composite module includes a third feeding roller for conveying the film, a merging pair of rollers, a main roller with a relatively large diameter and a movable pressing roller with a relatively small diameter arranged around the main roller, each of the movable pressing rollers cooperates with the main roller to form a hot pressing unit.

2. The double-layer fabric processing device according to claim 1, characterized in that: The corona box has a first pair of rollers on its feeding side for introducing the first fabric and the second fabric, and a second pair of rollers on its discharging side for leading out the first fabric and the second fabric.

3. The double-layer fabric processing device according to claim 2, characterized in that: The feed side and the discharge side of the first chamber are both provided with a first guide roller for guiding the first fabric into and out of the first chamber, and the feed side and the discharge side of the second chamber are both provided with a second guide roller for guiding the second fabric into and out of the second chamber.

4. The double-layer fabric processing device according to claim 1, characterized in that: The thermal composite module further includes a preheating box provided with a heating device, and the preheating box is provided between the merging rollers and the hot pressing unit.

5. The double-layer fabric processing device according to claim 4, characterized in that: A preheating fan is provided in the preheating box.

6. The double-layer fabric processing device according to claim 1, characterized in that: The movable pressing roller can move toward or away from the main roller.

7. The double-layer fabric processing device according to claim 1, characterized in that: The first infiltration device includes a first sprayer for spraying the first modifier, and the second infiltration device includes a second sprayer for spraying the second modifier.

8. The double-layer fabric processing device according to claim 7, characterized in that: The first sprayer and the second sprayer each include two spray heads arranged opposite to each other.

9. A double-layer fabric processing method comprising the following steps: S1, feeding the first fabric and the second fabric into the corona box of the corona treatment module by a first feeding roller and a second feeding roller, and performing corona treatment on the first fabric and the second fabric by a corona component; S2: After the first fabric and the second fabric are guided out of the corona treatment module, they are respectively introduced into the first chamber and the second chamber of the modification treatment module. The first impregnation device provided in the first chamber applies a first modifier to the first fabric, and the second impregnation device provided in the second chamber applies a second modifier to the second fabric. S3, the first fabric and the second fabric processed in step S2 and the adhesive film from the third feeding roller are brought together at a merging roller to form a pre-composite body, wherein the pre-composite body is composed of the adhesive film in the middle layer and the first fabric and the second fabric in the two side layers; S4. The pre-composite is introduced into a thermal composite module, and the adhesive film is melted by a hot pressing unit to bond the first fabric and the second fabric to form a double-layer fabric. The double-layer fabric is then rolled up by a rolling module to complete the processing of the double-layer fabric.

10. A double-layer fabric processing method according to claim 9, characterized in that: In step S4, the thermal composite module further includes a preheating box provided with a preheating blower. The pre-composite body is first preheated in the preheating box and then composite-molded in the hot pressing unit.

Images