Soft shell jacket composite fabric and preparation method thereof

Abstract

The invention discloses a soft shell jacket composite fabric and a preparation method thereof, and aims at solving the problem that an existing soft shell jacket fabric is poor in waterproof performance. According to the technical scheme, the fabric is characterized by comprising a waterproof layer, a warm-keeping layer and a skin-friendly layer which are sequentially arranged from top to bottom, and the skin-friendly layer is prepared from, by weight, 40-60 parts of cotton fibers, 10-15 parts of milk protein fibers, 10-25 parts of bamboo pulp fibers and 20-45 parts of antibacterial fibers; the surface of the waterproof layer is coated with a waterproof finishing agent, and a waterproof film layer is fixedly bonded to the surface of the waterproof layer. The waterproof performance of the fabric is enhanced by arranging the waterproof layer, the warm-keeping effect and comfort of the fabric can be considered by arranging the warm-keeping layer and the skin-friendly layer, the fabric is more comfortable to wear, and outdoor requirements under more conditions are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shell jacket fabric, more particularly, it relates to a soft shell jacket composite fabric and a preparation method thereof. BACKGROUND

[0002] With the development of outdoor sports in China, various types of outdoor clothing have also begun to gradually popularize in the crowd, among which the shell jacket is the most common, and because it has the performances of waterproof, windproof, lightness and wearing comfort, it is deeply loved by consumers, and has developed into the first choice of outdoor enthusiasts. However, as people's requirements for breathability, warmth, wearing comfort and other performances are getting higher and higher, ordinary shell jackets can no longer fully meet consumers, and more and more people begin to choose soft shell jackets.

[0003] The soft shell jacket is a kind of clothing between the fleece jacket and the shell jacket, and the fabric thereof is composed of a waterproof fabric and a fleece fabric, and has the performances of warmth and comfort and waterproof and windproof. However, the soft shell jackets on the market at present pay more attention to the warmth and other performances, and thus the waterproof performance is reduced, which is far from meeting the waterproof performance requirements of ordinary shell jackets, and cannot effectively block the invasion of rain and snow, so that the moisture penetrates into the inside of the clothes, making the human body feel wet.

[0004] Therefore, a scheme needs to be proposed to solve this problem. SUMMARY

[0005] In view of the deficiencies in the prior art, the purpose of the present application is to provide a soft shell jacket composite fabric and a preparation method thereof, which enhances the waterproof performance of the fabric by setting a waterproof layer, and can take into account the warmth and comfort of the fabric by setting a warmth layer and a skin-friendly layer, so that the wearing is more comfortable, and meets the outdoor needs in more situations.

[0006] The above technical purpose of the present application is realized by the following technical scheme: a soft shell jacket composite fabric and a preparation method thereof, which comprises a waterproof layer, a warmth layer and a skin-friendly layer arranged in sequence from top to bottom, the skin-friendly layer comprises the following raw materials in weight: 40-60 parts of cotton fiber, 10-15 parts of milk protein fiber, 10-25 parts of bamboo pulp fiber and 20-45 parts of antibacterial fiber; the surface of the waterproof layer is coated with a waterproof finishing agent, and the surface of the waterproof layer is adhesively fixed with a waterproof film layer.

[0007] The application is further provided with the following method for preparing the waterproof finishing agent: mixing water, methyl acryloyloxy polydimethylsiloxane, methyl methacrylate, butyl acrylate, an emulsifier, an initiator, n-hexadecane and nano-SiO2 at a weight ratio of (8-10):(2-5):(1-1.5):(1-1.25):(0.16-0.2):(0.04-0.06):(0.16-0.19):(0.04-0.05) and homogenizing for 30-40 min at a temperature of 25-30 DEG C, then reacting for 4-4.5 h at a temperature of 68-72 DEG C and a rotation speed of 300-320 r / min to obtain the waterproof finishing agent.

[0008] The application is further provided with the waterproof and moisture-permeable film layer being a TPU high moisture-permeable film, the thickness of the waterproof and moisture-permeable film being 8-12 mu m, and the weight of the waterproof and moisture-permeable film being 8-12 g / m.

[0009] The application is further provided with the antibacterial fiber comprising 12-18 parts of graphene, 20-30 parts of polyethylene imine, 2-6 parts of silver nitrate and 30-40 parts of polyethylene.

[0010] The application is further provided with the warm-keeping layer being a shaggy fabric.

[0011] The application is further provided with the preparation method of the antibacterial fiber, comprising the following steps: dispersing graphene in water and ultrasonically treating for 30-40 min, then adding polyethylene imine and continuing to ultrasonically treat, adjusting the pH to 7-8 to obtain a dispersion; adding silver nitrate and ammonia water to the dispersion until the precipitation disappears, then microwave heating at 100-120 DEG C, cooling, freeze-drying to obtain a graphene-silver blend; mixing the graphene-silver blend and polyethylene in water, heating and stirring at 40-60 DEG C for 6-8 h to obtain a spinning dope, and preparing the antibacterial fiber through electrospinning.

[0012] The above technical purposes of the application are also achieved by the following technical scheme: a preparation method of a soft-shell jacket composite fabric, comprising the following steps: step S1: mixing cotton fibers, milk protein fibers, bamboo pulp fibers and antibacterial fibers, then performing spinning, bobbin winding, twist setting, sizing, heddle threading in sequence, then weaving at a rotation speed of 400-450 r / min to obtain a skin-friendly layer;

[0013] Step S2: mixing a waterproof finishing agent and water to obtain a waterproof finishing agent solution with a mass fraction of 10-15 %, then immersing and padding the fabric in the waterproof finishing agent solution for 5-10 min, then heat setting at a temperature of 150-155 DEG C for 7-10 min, then desizing, softening and tentering to obtain a waterproof layer after pre-shrinking.

[0014] Step S3: a layer of polyurethane hot melt adhesive is coated on one side of the skin-friendly layer, then the warm layer and the fabric layer are hot-pressed and compounded under the condition that the pressure is 19-29 N and the vehicle speed is 15-20 m / min, to obtain a semi-finished product;

[0015] Step S4: a layer of polyurethane hot melt adhesive is coated on the other side of the warm layer in the semi-finished product at a temperature of 100-120 DEG C, then the waterproof layer and the warm layer are hot-pressed and compounded under the condition that the pressure is 19-29 N and the vehicle speed is 15-20 m / min, and then placed at a temperature of 65-70 DEG C for 4-5 days, to obtain a composite fabric.

[0016] The application is further provided as follows: the use amount of the polyurethane hot melt adhesive is 10-15 g / m2.

[0017] In summary, the application has the following beneficial effects:

[0018] The application uses cotton fiber, bamboo pulp fiber and milk protein fiber in a mixed and matched manner, fully plays the synergistic effect among them, and cooperates with the warm layer, so that the composite fabric layer has strong air permeability and heat preservation performance and is relatively light; meanwhile, the fabric layer is waterproof treated by using a waterproof finishing agent, and plays a synergistic effect with the water-blocking layer, so as to further improve the waterproof performance of the composite fabric, so that the composite fabric of the application has strong waterproof performance while having strong heat preservation performance. DETAILED DESCRIPTION

[0019] In order for those skilled in the art to better understand the technical solutions of the application, the application will be further described in detail below in combination with specific embodiments, and it should be noted that the embodiments of the application and the features in the embodiments can be combined with each other without conflict.

[0020] In the description of the application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0021] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood in a broad sense, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0022] The application will be described in detail below.

[0023] A soft shell jacket composite fabric and a preparation method thereof, comprising a waterproof layer, a warm layer and a skin-friendly layer arranged from top to bottom, the skin-friendly layer comprising raw materials with the following weight components: cotton fiber 40-60 parts, milk protein fiber 10-15 parts, bamboo pulp fiber 10-25 parts, and antibacterial fiber 20-45 parts; the surface of the waterproof layer is coated with a waterproof finishing agent, and the surface of the waterproof layer is bonded and fixed with a waterproof film layer, and the warm layer adopts a shake granulated fabric.

[0024] The waterproof finishing agent is prepared by the following method: water, methyl acryloyloxy polydimethylsiloxane, methyl methacrylate, butyl acrylate, emulsifier, initiator, n-hexadecane and nano-SiO2 with a weight ratio of (8-10):(2-5):(1-1.5):(1-1.25):(0.16-0.2):(0.04-0.06):(0.16-0.19):(0.04-0.05) are mixed uniformly at a temperature of 25-30°C for 30-40 min, and then reacted at a temperature of 68-72°C and a rotation speed of 300-320 r / min for 4-4.5 h to obtain the waterproof finishing agent.

[0025] The waterproof film layer is a TPU high-moisture-permeable film, the thickness of the waterproof and moisture-permeable film is 8-12 mu m, and the weight of the waterproof and moisture-permeable film is 8-12 g / m.

[0026] The antibacterial fiber comprises 12-18 parts of graphene, 20-30 parts of polyethylene imine, 2-6 parts of silver nitrate and 30-40 parts of polyethylene.

[0027] The preparation method of the antibacterial fiber comprises the following steps: dispersing graphene in water and ultrasonicating for 30-40 min, then adding polyethylene imine and continuing to ultrasonicate, adjusting the pH to 7-8 to obtain a dispersion; adding silver nitrate and ammonia water to the dispersion until the precipitation disappears, and then heating under microwave at 100-120°C, cooling and freeze-drying to obtain a graphene-silver blend; mixing the graphene-silver blend and polyethylene in water, heating and stirring at 40-60°C for 6-8 h to obtain a spinning dope, and then preparing the antibacterial fiber by electrospinning.

[0028] A preparation method of a soft shell jacket composite fabric, comprising the following steps: step S1: mixing cotton fiber, milk protein fiber, bamboo pulp fiber and antibacterial fiber, and then performing spinning, bobbin winding, twist setting, sizing and harnessing in sequence, and then weaving at a rotation speed of 400-450 r / min to obtain a skin-friendly layer.

[0029] Step S2: First, mix the waterproof finishing agent and water to obtain a waterproof finishing agent solution with a mass fraction of 10-15%, then immerse the fabric in the waterproof finishing agent solution for 5-10 min, then heat set at a temperature of 150-155℃ for 7-10 min, then desize, softening and tentering, and then obtain the waterproof layer after pre-shrinking;

[0030] Step S3: Apply a layer of polyurethane hot melt adhesive on one side of the skin-friendly layer, then hot press the warm layer and the fabric layer under the conditions of a pressure of 19-29N and a vehicle speed of 15-20 m / min to obtain a semi-finished product;

[0031] Step S4: Apply a layer of polyurethane hot melt adhesive on the other side of the warm layer of the semi-finished product at a temperature of 100-120℃, then continue to hot press the waterproof layer and the warm layer under the conditions of a pressure of 19-29N and a vehicle speed of 15-20 m / min, and then place at a temperature of 65-70℃ for 4-5 days to obtain the composite fabric.

[0032] The amount of polyurethane hot melt adhesive used is 10-15 g / m2.

[0033] The waterproof layer is woven from cotton fibers, and the waterproof and moisture-permeable film layer has waterproof and moisture-permeable effects. When the human body sweats a lot, a large amount of liquid sweat accumulates on the surface of the skin. At this time, the waterproof layer has waterproof effect, and because the waterproof and moisture-permeable film is arranged in the fabric body, the sweat can easily be discharged through the fabric, thereby avoiding the accumulation of a large amount of sweat in the interior of the fabric structure, which can prevent the fabric from being heavy and affecting the wearing experience.

[0034] Compared with traditional antibacterial materials, graphene has the advantages of high surface activity, high reactivity and high biocompatibility. Its antibacterial principle mainly works through mechanical cutting. When bacteria adhere to the graphene fabric, graphene physically damages the bacteria through its sharp boundaries, thereby inhibiting the growth and reproduction of bacteria. This antibacterial mechanism is not only effective, but also broad-spectrum, and can inhibit the growth of multiple bacteria.

[0035] Silver nitrate provides silver ions for the antibacterial fiber. Silver ions are known for their broad-spectrum antibacterial effect. When graphene is combined with silver ions, its antibacterial performance is significantly improved, and it can more effectively inhibit and kill bacteria, fungi and other microorganisms, thereby improving the antibacterial performance of the fabric. Graphene contains oxygen atoms, which can easily form hydrogen bonds, covalent bonds and other bonds, and can also form stable composite structures through electrostatic adsorption. The chemical stability is high, and the silver ions in the graphene-silver composite material can be continuously released, so that the antibacterial effect is persistent. After multiple washes and uses, the fabric can still maintain excellent antibacterial performance, significantly improving the wash resistance and durability of the fabric.

[0036] The addition of silver ions enhances the antibacterial activity of graphene in the antibacterial fiber, and the graphene-silver composite material is used to prepare the antibacterial fiber through electrospinning, so that the antibacterial fiber combines the persistent and stable antibacterial properties of graphene and silver ions, and the antibacterial fiber can still maintain the stability of the antibacterial effect even after multiple washings and uses.

[0037] The warm layer of the present application adopts a shake pile fabric, which has good air permeability and heat preservation performance. The present application applies cotton fibers to the fabric layer, which can improve the thickness of the fabric layer and enhance the windproof and warm-keeping performance of the fabric layer. At the same time, bamboo pulp fibers and milk protein fibers are matched, the excellent moisture absorption and air permeability of bamboo pulp fibers are used to enhance the moisture absorption and air permeability of the fabric layer, and the milk fiber can make the skin layer more comfortable when contacting the skin, so that the moisture generated by the human body during outdoor exercise can be quickly discharged and not trapped between the body and the clothes, reducing the possibility of body heat loss in cold weather, thereby further improving the warm-keeping effect of the fabric layer.

[0038] The present application uses cotton fibers, bamboo pulp fibers and milk protein fibers in combination, fully utilizes the synergistic effect among them, and cooperates with the warm layer, so that the composite fabric layer has strong air permeability and heat preservation performance and is relatively light. At the same time, the fabric layer is treated with a waterproof finishing agent, which plays a synergistic effect with the water-blocking layer, further improving the waterproof performance of the composite fabric, so that the composite fabric of the present application has strong waterproof performance while having strong heat preservation performance.

[0039] The present application uses methyl methacryloxy polydimethylsiloxane, methyl methacrylate, butyl acrylate and nano-SiO2 as raw materials, and carries out polymerization under the action of emulsifiers, initiators, solvents and other components to obtain a silicone hybrid SiO2 emulsion. After the cotton fibers and other components are treated with the silicone hybrid SiO2 emulsion instead of the traditional fluorine-containing finishing agent, a latex film is formed on the surface of the fibers, and the introduction of nano-SiO2 particles makes the surface of the fibers have many small particles, increasing the roughness of the surface of the fibers, so that the latex film has a low surface energy and a high contact angle with water, greatly improving the waterproof performance of the fabric layer, and avoiding the harm of persistent pollutants such as perfluorooctanoic acid compounds in the fluorine-containing finishing agent to the human body and other organisms.

[0040] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solutions falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as the protection scope of the present application.

Claims

1. A soft shell jacket composite fabric and a method for making the same, characterized in that: It comprises waterproof layer, warm layer and skin-friendly layer arranged from top to bottom, the skin-friendly layer comprises the following weight components of raw materials: cotton fiber 40-60 parts, milk protein fiber 10-15 parts, bamboo pulp fiber 10-25 parts, antibacterial fiber 20-45 parts; the surface of the waterproof layer is coated with a waterproof finishing agent, and the surface of the waterproof layer is bonded and fixed with a waterproof film layer.

2. The soft shell jacket composite fabric according to claim 1, wherein: The waterproof finishing agent is prepared by the following method: mixing water, methyl acryloyloxy polydimethylsiloxane, methyl methacrylate, butyl acrylate, emulsifier, initiator, n-hexadecane and nano-SiO2 in a weight ratio of (8-10):(2-5):(1-1.5):(1-1.25):(0.16-0.2):(0.04-0.06):(0.16-0.19):(0.04-0.05) at a temperature of 25-30℃, then homogenizing for 30-40min, then reacting at a temperature of 68-72℃ and a rotation speed of 300-320r / min for 4-4.5h to obtain the waterproof finishing agent.

3. The soft shell jacket composite fabric of claim 1, wherein: The waterproof film layer is a TPU high-moisture-permeable film, the thickness of the waterproof moisture-permeable film is 8-12μm, and the weight of the waterproof moisture-permeable film is 8-12g / m.

4. The soft shell jacket composite fabric of claim 1, wherein: The antibacterial fiber comprises 12-18 parts of graphene, 20-30 parts of polyethylene imine, 2-6 parts of silver nitrate and 30-40 parts of polyethylene.

5. The soft shell jacket composite fabric of claim 1, wherein: The warm layer adopts a shake grain suede fabric.

6. The soft shell jacket composite fabric of claim 4, wherein: The preparation method of the antibacterial fiber comprises the following steps: dispersing graphene in water and ultrasonicating for 30-40min, then adding polyethylene imine and continuing to ultrasonicate, adjusting the pH to 7-8 to obtain a dispersion; adding silver nitrate and ammonia water to the dispersion until the precipitate disappears, then microwave heating at 100-120℃, cooling and freeze-drying to obtain a graphene-silver blend; mixing the graphene-silver blend and polyethylene in water, heating and stirring at 40-60℃ for 6-8h to obtain a spinning dope, and preparing the antibacterial fiber by electrospinning.

7. The preparation method of the soft shell jacket composite fabric according to any one of claims 1-6, characterized in that: It comprises the following steps: Step S1: mixing cotton fiber, milk protein fiber, bamboo pulp fiber and antibacterial fiber, then performing spinning, bobbin winding, twist setting, sizing, heddle threading in sequence, then weaving at a rotation speed of 400-450r / min to obtain the skin-friendly layer; Step S2: mixing the waterproof finishing agent and water to obtain a waterproof finishing agent solution with a mass fraction of 10-15%, then immersing the fabric in the waterproof finishing agent solution for 5-10min, then heat setting at a temperature of 150-155℃ for 7-10min, then desizing, softening and tentering to obtain the waterproof layer after pre-shrinking; Step S3: coating a layer of polyurethane hot melt adhesive on one side of the skin-friendly layer, then hot pressing the warm layer and the fabric layer under the conditions of a pressure of 19-29N and a vehicle speed of 15-20m / min to obtain a semi-finished product; Step S4: coating the other side of the thermal layer of the semi-finished product with a layer of polyurethane hot melt adhesive at a temperature of 100-120°C, and then continuing to hot-press the waterproof layer and the thermal layer under the conditions of a pressure of 19-29 N and a vehicle speed of 15-20 m / min, and then placing at a temperature of 65-70°C for 4-5 days to obtain the composite fabric.

8. The method for preparing a softshell jacket composite fabric according to claim 6, characterized in that: The polyurethane hot melt adhesive is used in an amount of 10-15 g / m2.