Crease-resistant and water-repellent microcapsule fabric

Abstract

The utility model relates to the technical field of multifunctional textile fabrics, and provides a crease-resistant and water-repellent microcapsule fabric which comprises a base layer, the base layer is formed by interweaving warp fibers and weft fibers which are perpendicular to each other, and filling holes are formed in gaps formed by interweaving the warp fibers and the weft fibers; a functional layer is arranged on the base layer, the functional layer is composed of a heat absorption layer and a porous waterproof outer layer arranged above the heat absorption layer, and the lower portion of the heat absorption layer is connected with the base layer; the filling holes are filled with anti-wrinkling microcapsules; and phase change microcapsules are arranged in the heat absorption layer. The crease-resistant and water-repellent effects of the fabric are remarkably improved, and market development is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of multifunctional textile fabrics, in particular to a wrinkle-proof and water-repellent microcapsule fabric. Background Art

[0002] Clothing was originally used to cover the body and reduce the damage to the body from the outside world during survival. With continuous development, clothing gradually plays the role of modifying the human body and showing identity and status. Fabric, as one of the three elements of clothing, can not only interpret the style and characteristics of clothing, but also directly affect the color and shape of clothing. The functions of traditional fabrics are relatively single. People only choose fabrics based on the properties of natural materials to achieve certain softness, breathability, and heat preservation effects. However, when facing a slightly complex environment, the disadvantages of the single function of traditional natural fabrics begin to appear. For example, fabrics with good heat preservation have poor breathability, and fabrics with good waterproofness have poor softness, which means that the multifunctional composite of fabrics cannot be achieved, which also limits the application and development of traditional fabrics. However, with the development of the economy and the improvement of living standards, people have higher and higher requirements for fabrics and clothing fabrics used in homes and lives. Therefore, how to design multifunctional fabrics and give full play to their corresponding excellent performance has become the focus of research. Multifunctional fabrics with good performance can provide an opportunity to seize the market.

[0003] Waterproof and wrinkle-proof properties are important properties of fabrics. At present, there are many and mature studies on the waterproof properties of fabrics, but the research on wrinkle-proof treatment of fabrics is not very mature, and there are even fewer studies on wrinkle-proof and water-resistant multifunctional fabrics. Fabric wrinkling is a common problem faced by traditional fabrics. Fabric wrinkling is due to the breaking and reorganization of hydrogen bonds between the molecules of its constituent fibers (cotton fibers), that is, the polymers that constitute the fibers are connected by hydrogen bonds (the hydrogen bonds that connect water molecules H2O). When the fabric is heated, these hydrogen bonds will break, making the fibers flexible and able to move to other positions. Then when the fabric cools, new hydrogen bonds are formed, and the rearranged fabric will become any other shape, that is, wrinkles will be generated, which seriously affects the appearance and people's use experience. In reality, people usually use ironing to restore the original drape and upright shape of the fabric. However, after ironing, water marks will be left, making the clothes damp and wet, which is very inconvenient when you are in a hurry to go out. In addition, repeated high-temperature ironing can easily damage the fabric of the clothing, significantly reducing the service life of the fabric. Therefore, in order to overcome the problem of fabric wrinkling, people began to study and design anti-wrinkle coatings. For example, in the prior art, the patent number CN213056254U "A wrinkle-resistant and iron-free high-density knitted suit fabric" discloses "through the anti-wrinkle coating and anti-radiation metal coating, the anti-wrinkle coating can make the fabric as a whole more straight, and the anti-radiation metal coating makes the fabric have higher elasticity, so that the deformation of the fabric is easier to recover and wrinkles are prevented." However, it can be seen that the anti-wrinkle coating is arranged between the anti-radiation metal wire layer and the temperature-sensitive microcapsule pigment layer, and there is an intermediate antibacterial layer, a negative ion layer, a soft layer and an anti-radiation metal wire layer between the anti-wrinkle coating and the high-density knitted base layer of the fabric body. It can be seen that the effect of the anti-wrinkle coating on the high-density knitted base layer of the fabric body is negligible, and its anti-wrinkle effect is limited, or the anti-wrinkle coating can only act on the functional layer outside the fabric body (such as the negative ion layer, the soft layer, the anti-radiation metal wire layer and the temperature-sensitive microcapsule pigment layer, the temperature-sensitive microcapsule pigment layer). For another example, the patent number CN213322123U, "A tent fabric with anti-mosquito function", has made improvements on this by directly bonding the anti-wrinkle layer to the base layer, which improves the anti-wrinkle effect to a certain extent. However, it can be seen that the anti-wrinkle layer only acts on one side of the base layer, and its anti-wrinkle effect still needs to be further optimized.

[0004] Based on the existing technology, the utility model creatively designs anti-wrinkle microcapsules, fills them in filling holes formed by the interweaving of warp fibers and weft fibers, and combines them with a functional layer consisting of a heat-absorbing layer and a porous waterproof outer layer, aiming to enhance the anti-wrinkle and water-repellent effects of the fabric. Utility Model Content

[0005] The utility model aims to provide an anti-wrinkle and water-repellent microcapsule fabric with a simple structure and good anti-wrinkle and water-repellent effects, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A wrinkle-proof and water-repellent microcapsule fabric, comprising a base layer, wherein the base layer is formed by warp fibers and weft fibers being perpendicular and interwoven with each other, and the gaps between the warp fibers and the weft fibers are filled with holes; a functional layer is arranged on the base layer, wherein the functional layer is composed of a heat absorption layer and a porous waterproof outer layer arranged above the heat absorption layer, and the bottom of the heat absorption layer is connected to the base layer;

[0008] The filling hole is filled with anti-wrinkle microcapsules;

[0009] Phase change microcapsules are arranged in the heat absorption layer.

[0010] Preferably, the anti-wrinkle microcapsules are spherical, and the average particle size of the anti-wrinkle microcapsules is 15-40 μm.

[0011] Preferably, the anti-wrinkle microcapsules are composed of a low-temperature hot-melt film and an anti-wrinkle core material wrapped in the low-temperature hot-melt film.

[0012] Preferably, the low-temperature hot-melt film has a thickness of 3-8 μm.

[0013] Preferably, the functional layer is provided with two layers, and the two functional layers are respectively arranged above and below the base layer.

[0014] Preferably, a water absorbing layer is connected below the functional layer on one side of the base layer.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model creatively designs anti-wrinkle microcapsules, fills them in filling holes formed by the interweaving of warp fibers and weft fibers, and is combined with a functional layer consisting of a heat-absorbing layer and a porous waterproof outer layer, so that the anti-wrinkle microcapsules can fully contact with the warp fibers and weft fibers of the fabric base layer. When subjected to external stress (or encountering water or heat), the anti-wrinkle microcapsules are arranged to avoid the breaking of original hydrogen bonds and the generation of new hydrogen bonds, thereby maintaining the overall stability of the fabric and avoiding the generation of wrinkles; to a certain extent, the heat-absorbing layer absorbs external heat and feeds it back to the anti-wrinkle microcapsules, making the fibers themselves more relaxed, reducing the number of hydrogen bonds in the fibers, and allowing the chain segments inside the fibers to form new hydrogen bonds at a new equilibrium position, further preventing the fabric from wrinkling.

[0017] The utility model creatively arranges a porous waterproof outer layer, combined with the design of anti-wrinkle microcapsules, to avoid the softening effect of moisture on the warp fibers and weft fibers in the base layer during the anti-wrinkle process, which not only prevents the formation of water marks on the surface of the fabric after the anti-wrinkle treatment, but also significantly improves the waterproof effect of the fabric.

[0018] The wrinkle-proof and water-repellent microcapsule fabric designed by the utility model has a simple structure, does not require high-temperature and high-pressure steam treatment for wrinkle-proof and water-repellent, has strong functionality, and has significant wrinkle-proof and water-repellent effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of a specific embodiment 1 of an anti-wrinkle and water-repellent microcapsule fabric of the utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of a specific embodiment 2 of an anti-wrinkle and water-repellent microcapsule fabric of the utility model;

[0021] Figure 3 This is a schematic diagram of the main structure of the anti-wrinkle microcapsule in the utility model;

[0022] In the figure, 1-base layer, 101-warp fiber, 102-weft fiber, 103-filling hole, 2-functional layer, 3-heat absorption layer, 4-porous waterproof outer layer, 5-wrinkle-proof microcapsule, 501-low-temperature hot-melt film, 502-wrinkle-proof core material, 6-phase change microcapsule, 7-water absorption layer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 , the utility model provides: Specific embodiment 1

[0026] A wrinkle-proof and water-repellent microcapsule fabric comprises a base layer 1 formed by mutually perpendicular and interwoven warp fibers 101 (polyester) and weft fibers 102 (nylon), and the gaps between the interwoven warp fibers 101 and the weft fibers 102 form filling holes 103; a functional layer 2 is arranged on the base layer 1, and the functional layer 2 is composed of a heat-absorbing layer 3 (a porous space cotton layer with strong temperature sensitivity) and a porous waterproof outer layer 4 (a transparent polytetrafluoroethylene film layer) arranged above the heat-absorbing layer 3, and the bottom of the heat-absorbing layer 3 is connected to the base layer 1.

[0027] In this embodiment 1, the filling hole 103 is filled with anti-wrinkle microcapsules 5, and the filling rate of the anti-wrinkle microcapsules 5 is 50%. The anti-wrinkle microcapsules 5 are spherical, and their average particle size is 15μm. The anti-wrinkle microcapsules 5 are composed of a low-temperature hot-melt film 501 (TPU hot-melt adhesive film, HJU80) and an anti-wrinkle core material 502 (the anti-wrinkle core material is a mixture of silicone and acrylic polymers) wrapped in the low-temperature hot-melt film 501. The thickness of the low-temperature hot-melt film in this embodiment 1 is 3μm.

[0028] The heat absorption layer 3 described in this embodiment 1 is filled with phase change microcapsules 6. In this embodiment, the phase change microcapsules 6 are filled in the pores of the porous space cotton. The phase change microcapsules 6 are composed of an acid and alkali resistant shell (polyurea shell) and a phase change core material (wax phase change material, phase change temperature is 75-80°C) wrapped in the acid and alkali resistant shell. Specific embodiment 2

[0030] The anti-wrinkle and water-repellent microcapsule fabric in Example 2 has the same structure as that in Example 1, except that the filling rate of the anti-wrinkle microcapsules 5 is 80%; the average particle size of the spherical anti-wrinkle microcapsules 5 is 40 μm; and the thickness of the low-temperature hot-melt film is 8 μm. In Example 2, the functional layer 2 is provided with two layers, and the two functional layers 2 are respectively arranged above and below the base layer 1 (one side of the heat absorption layer 3 is connected to the base layer 1), and a water absorption layer 7 is connected below the functional layer 2 on the lower side of the base layer 1. Specific embodiment 3

[0032] The anti-wrinkle and water-repellent microcapsule fabric in this embodiment 3 has the same structure as that in embodiment 1, except that: the filling rate of the anti-wrinkle microcapsules 5 is 75%; the average particle size of the spherical anti-wrinkle microcapsules 5 is 25 μm; and the thickness of the low-temperature hot-melt film is 5 μm.

[0033] During use, the porous waterproof outer layer in the functional layer can prevent external moisture from entering the base layer, thereby solving the problem that water marks are left on the surface of the fabric after ironing, making the clothes damp and wet, which is very inconvenient when going out in a hurry; and a water-absorbing layer is provided on the surface of the functional layer on one side of the fabric, which is beneficial to improving the sweat and moisture absorption effect of the fabric clothing when it is worn, thereby improving the comfort.

[0034] When the utility model is subjected to external force during use, that is, at a certain temperature (75-80°C), the heat absorption layer in the functional layer maintains the temperature stable and unchanged, while the low-temperature hot-melt film in the anti-wrinkle microcapsules filled in the base layer begins to melt (75°C) and gradually releases the anti-wrinkle core material (a mixture of silicone and acrylic polymers) inside it, wherein the silicone hot-melt flows out, combines with the surfaces of the warp fibers and the weft fibers, and forms a protective film to prevent wrinkles in the base layer, and has certain waterproof and wear-resistant properties; the acrylic polymer hot-melt flows out, combines with the warp fibers and the weft fibers, increases the fiber strength, washability and softness (replacing the role of water-softening fibers), has strong overall functionality, and has significant anti-wrinkle and water-repellent effects.

[0035] It can be seen from the above embodiments of the present invention that the present invention designs anti-wrinkle microcapsules, which are filled in the filling holes formed by the interweaving of warp fibers and weft fibers, and is combined with a functional layer consisting of a heat-absorbing layer and a porous waterproof outer layer, so that the anti-wrinkle microcapsules can fully contact with the warp fibers and weft fibers of the fabric base layer. When subjected to external stress (or encountering water or heat), the anti-wrinkle microcapsules are arranged to avoid the breaking of the original hydrogen bonds and the generation of new hydrogen bonds, thereby maintaining the overall stability of the fabric and avoiding the generation of wrinkles; to a certain extent, the heat-absorbing layer absorbs external heat and feeds it back to the anti-wrinkle microcapsules, which can also reduce the number of hydrogen bonds in the fiber, making the fiber itself more relaxed, and allowing the chain segments inside the fiber to form new hydrogen bonds at a new equilibrium position, further preventing the fabric from wrinkling.

[0036] The utility model is provided with a porous waterproof outer layer, combined with the design of anti-wrinkle microcapsules, which avoids the softening effect of moisture on the warp fibers and weft fibers in the base layer during the anti-wrinkle process, not only prevents the formation of water marks on the surface of the fabric after the anti-wrinkle treatment, but also significantly improves the waterproof effect of the fabric.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wrinkle-proof and water-repellent microcapsule fabric, characterized in that: The invention comprises a base layer, wherein the base layer is formed by warp fibers and weft fibers being perpendicular to each other and interwoven, and the gaps between the warp fibers and the weft fibers are filled with holes; a functional layer is arranged on the base layer, and the functional layer is composed of a heat absorbing layer and a porous waterproof outer layer arranged above the heat absorbing layer, and the bottom of the heat absorbing layer is connected to the base layer; The filling hole is filled with anti-wrinkle microcapsules; Phase change microcapsules are arranged in the heat absorption layer.

2. The wrinkle-proof and water-repellent microcapsule fabric according to claim 1, characterized in that: The anti-wrinkle microcapsules are spherical, and the average particle size of the anti-wrinkle microcapsules is 15-40 μm.

3. The wrinkle-proof and water-repellent microcapsule fabric according to claim 2, characterized in that: The anti-wrinkle microcapsule is composed of a low-temperature hot-melt film and an anti-wrinkle core material wrapped in the low-temperature hot-melt film.

4. The wrinkle-proof and water-repellent microcapsule fabric according to claim 3, characterized in that: The thickness of the low-temperature hot-melt film is 3-8 μm.

5. The wrinkle-proof and water-repellent microcapsule fabric according to claim 1, characterized in that: The functional layer is provided with two layers, and the two functional layers are respectively arranged above and below the base layer.

6. The wrinkle-proof and water-repellent microcapsule fabric according to claim 5, characterized in that: A water absorbing layer is connected below the functional layer on one side of the base layer.

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