Washable polylactic acid fiber material quilt and manufacturing process thereof

Abstract

The invention discloses a washable polylactic acid fiber material quilt and a manufacturing process thereof, and relates to the technical field of bedding articles, the washable polylactic acid fiber material quilt comprises a quilt cover made of polylactic acid fibers and an internal filler, and the quilt cover is divided into a quilt surface layer and a fluff layer; according to the invention, through the combination of the crease-resistant materials in a specific proportion, the overall quality of the quilt can be effectively improved, the organic silicon finishing agent can form a layer of protective film on the surface of the fiber, the flexibility of the fiber is improved, the generation of wrinkles is reduced, and the finishing agent is more stable and is not easily damaged by factors such as water washing due to a cross-linked structure; the nano-scale particles can fill gaps among the fibers, enhance the strength and wear resistance of the fibers and further improve the crease-resistant performance, the softness and comfort of the quilt are not affected while the shape of the quilt is kept, and moreover, the improvement of the crease-resistant performance is beneficial to more uniform distribution of the degerming components and the aromatherapy essential oil microcapsules in the fibers, so that the quality of the quilt is improved. Therefore, the sterilization and fragrance emission effects can be better exerted.

Description

Technical Field

[0001] The invention relates to the technical field of bedding products, in particular to a washable polylactic acid fiber quilt and a manufacturing process thereof. Background Art

[0002] In the current bedding market, traditional quilts have many shortcomings, which seriously affect the user experience and quality of life, and also make it necessary to develop a washable polylactic acid fiber quilt and its production process.

[0003] In terms of materials, traditional quilts usually use fiber materials that are less environmentally friendly and difficult to degrade, which puts a lot of pressure on the environment. In terms of production technology, there is a lack of effective anti-wrinkle treatment, which makes the quilt prone to wrinkles during use and washing, affecting the appearance and comfort. Moreover, traditional quilts generally do not have the function of intelligently adjusting the release of fragrance according to the ambient temperature and humidity, and cannot create a comfortable sleeping environment for users.

[0004] In summary, the traditional quilts in the prior art have the disadvantages of poor environmental protection, insufficient wrinkle resistance, lack of sterilization and fragrance regulation functions, etc., which cannot meet the modern people's demand for high-quality bedding. Therefore, the development of a washable polylactic acid fiber quilt and its manufacturing process has important practical significance and market value.

[0005] In view of this, a washable polylactic acid fiber material quilt and a manufacturing process thereof are provided to overcome the above problems. Summary of the invention

[0006] The object of the present invention is to provide a washable polylactic acid fiber material quilt and a manufacturing process thereof, so as to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention provides a washable polylactic acid fiber material quilt, comprising: a quilt cover made of polylactic acid fiber and an internal filling material, the quilt cover is divided into a quilt surface layer and a fluff layer, the quilt surface layer is woven with polylactic acid yarn with a specification of 40s, the fluff layer is located on the same side of the quilt surface layer, and is composed of polylactic acid filaments with a specification of 75D, and the quilt filling material is a polylactic acid short fiber filament bundle with a high curvature, with a length of 38mm, a fineness of 1.37D, and a curvature of 5-20 / 25mm; Quilt cover and internal filling: both are made of anti-wrinkle materials, including: organic silicon finishing agent, organic silicon compound with cross-linking structure, nano-scale silicon dioxide particles; The fibers in both the duvet cover and the inner filling adopt a multi-layer microcapsule structure; including an inner layer, a middle layer and an outer layer.

[0008] A process for making a washable polylactic acid fiber quilt comprises the following steps: S1. Raw material preparation: Prepare raw materials: including polylactic acid fiber, silicone finishing agent, silicone compound with cross-linked structure, nano-scale silica particles, aromatherapy essential oil, polyamide-amine dendrimer (PAMAM); S2. Anti-wrinkle material mixing: for the production of quilt covers, the polylactic acid fiber is mixed with an organosilicon finishing agent at a ratio of 3.5%-4.5% by weight of the polylactic acid fiber, the organosilicon compound with a cross-linked structure is at a ratio of 12%-13% by weight of the organosilicon finishing agent, and the nano-scale silica particles are at a ratio of 2.5%-3.5% by weight of the polylactic acid fiber; for the production of internal fillings, the organosilicon finishing agent is at a ratio of 3.0%-4.0% by weight of the polylactic acid fiber, the organosilicon compound with a cross-linked structure is at a ratio of 11%-13% by weight of the organosilicon finishing agent, and the nano-scale silica particles are at a ratio of 2.0%-3.0% by weight of the polylactic acid fiber. S3, fiber production: The polylactic acid fiber mixed with the wrinkle-proof material is spun to produce the quilt cover and the fluff layer of the quilt cover, as well as the polylactic acid short fiber high-curl filament bundle for the internal filling; S4. Preparation of microcapsules: a multi-layer microcapsule structure is made, the inner layer is injected with the aromatherapy essential oil core, the middle layer is made of a composite material of polyamide-amine dendrimer (PAMAM) and polylactic acid, and the outer layer is made of a protective shell, and the diameter of the microcapsule is controlled to be 6-9μm; S5. Microcapsule embedding: The microcapsules are embedded into the fibers of the quilt cover and internal filling through the blending spinning process. The spinning temperature is controlled at 200-220°C, the pressure is 1.5-2 MPa, and the speed is 1000-1200 m / min. The embedding depth of the microcapsules in the fibers is ensured to be 1 / 3-1 / 2 of the fiber radius. S6. Plasma treatment: Plasma treatment technology is used with a processing power of 50-80w and a processing time of 5-10 minutes to enhance the bonding force between microcapsules and polylactic acid fibers.

[0009] Furthermore, during the weaving process, the yarn tension is controlled at 15-20n, the yarn density is 120-150 yarns per square centimeter, and double-sided weaving technology is adopted. By strictly controlling the yarn tension and yarn density and adopting double-sided weaving technology, it is ensured that the quilt surface layer and the fluff layer are closely combined, thereby enhancing the integrity and stability of the quilt, and facilitating the anti-wrinkle performance, thereby making the sterilization ingredients and fragrance distribution more even, thereby improving the sterilization and fragrance effects.

[0010] Furthermore, aromatherapy essential oils such as lavender essential oil and lemongrass essential oil with a fresh and soothing aroma are selected. The concentration of the aromatherapy essential oil microcapsules is 1%-2% of the weight of the polylactic acid fiber. The specific type and concentration of aromatherapy essential oils can provide users with a moderate fragrance that is not too strong or weak while ensuring anti-wrinkle performance, and at the same time help to evenly distribute and exert the effect of the sterilization ingredients.

[0011] Furthermore, during the production process, the quilt cover and internal filling are treated with antibacterial agents using environmentally friendly antibacterial agents. The amount of antibacterial agent added is 1.5%-2.5% of the weight of the polylactic acid fiber, ensuring that the quilt has good antibacterial properties, reducing bacterial growth, and providing users with a healthier sleeping environment.

[0012] Furthermore, the quilt cover is waterproofed by using a highly effective waterproofing agent, with the added amount of the waterproofing agent being 2%-3% of the weight of the polylactic acid fiber, so that the quilt has a certain waterproof property during use, prevents liquid penetration, and is easy to clean and maintain.

[0013] Furthermore, after the plasma treatment, a low-temperature drying process is added, and the drying temperature is controlled at 40-50°C for 30-60 minutes to ensure that the quilt is fully dried after treatment and enhance the bonding stability of the microcapsules and the polylactic acid fibers.

[0014] Furthermore, during the preparation of the microcapsules, the formula of the middle layer composite material was optimized by increasing the proportion of polylactic acid to 60%-70%, while adjusting the proportion of polyamide-amine dendrimer (PAMAM) to within the range of 30%-40%, to ensure that the middle layer was more sensitive to temperature and humidity, thereby better controlling the release of aroma.

[0015] Compared with the prior art, the present invention has the following beneficial effects: During the use of PLA fiber quilts, wrinkle-proof performance is crucial. The overall quality of the quilt can be effectively improved by combining anti-wrinkle materials in a specific ratio. The silicone finishing agent accounts for 3%-5% of the weight of the PLA fiber. This finishing agent can form a protective film on the fiber surface, increase the flexibility of the fiber, and reduce the generation of wrinkles. Among them, the silicone compound with a cross-linked structure accounts for 10%-15% of the weight of the silicone finishing agent. The cross-linked structure makes the finishing agent more stable and not easily destroyed by factors such as washing. Nano-scale silica particles account for 2%-4% of the weight of the PLA fiber. Nano-scale particles can fill the gaps between fibers, enhance the strength and wear resistance of the fibers, and further improve the anti-wrinkle performance. This ratio of anti-wrinkle material combination has been verified by many experiments to maintain the shape of the quilt without affecting the softness and comfort of the quilt. Moreover, the improvement of anti-wrinkle performance helps to make the sterilization components and aromatherapy essential oil microcapsules in the fiber more evenly distributed, so as to better play the role of sterilization and fragrance distribution.

[0016] In the weaving process, strict control of yarn tension and yarn density is crucial to the quality of the quilt. The yarn tension is controlled at 15-20n. The tension within this range can ensure that the yarn will not be too tight or loose during the weaving process, thereby ensuring that the quilt surface layer and the fluff layer are tightly combined. The yarn density is 120-150 yarns per square centimeter. The appropriate density can increase the thickness and warmth of the quilt, and also help to enhance the integrity and stability of the quilt. The use of double-sided weaving technology makes both sides of the quilt have a good appearance and texture, and can further strengthen the bonding between the quilt surface layer and the fluff layer. Through these improvements in yarn technology, not only can the wrinkle-proof performance of the quilt be improved, but it is also conducive to the uniform distribution of sterilization ingredients and fragrance, and improves the effect of sterilization and fragrance.

[0017] The polylactic acid fiber quilt adopts a multi-layer microcapsule structure, which has significant advantages. The inner layer is the core of the aromatherapy essential oil, such as lavender essential oil and lemongrass essential oil with a fresh and soothing aroma. These essential oils can provide users with a comfortable sleeping environment and relieve stress. The middle layer is a polymer material that is sensitive to temperature and humidity, such as a composite material of polyamide-amine dendrimer (pamam) and polylactic acid. This material can adjust the release rate of the fragrance according to the changes in ambient temperature and humidity, ensuring that the fragrance always remains within a suitable concentration range. The outer layer is a protective shell that can protect the essential oil and polymer material inside the microcapsule from damage by external factors. The diameter of the microcapsule is controlled at 5-10μm, which can not only ensure the stability of the microcapsule in the fiber, but also allow the fragrance to be fully released. This multi-layer microcapsule structure can make the sterilization ingredients and fragrance more evenly distributed in the fiber while maintaining good anti-wrinkle performance, thereby improving the sterilization effect and the stability of fragrance release.

[0018] The selection of essential oils has an important impact on the quality of PLA fiber quilts. Choose lavender essential oil, lemongrass essential oil and other essential oils with fresh and soothing aroma. These essential oils can not only provide users with a comfortable sleeping environment, but also have a certain sterilization effect. The concentration of essential oil microcapsules is 1%-2% of the weight of PLA fiber. Essential oils within this concentration range can provide users with a moderate fragrance without being too strong or weak while ensuring anti-wrinkle performance. At the same time, specific types and concentrations of essential oils help to evenly distribute and exert the sterilization ingredients, providing users with a healthier sleeping environment.

[0019] The control of the blended spinning process parameters is crucial to the quality of the PLA fiber quilt. The spinning temperature is 200-220℃, which can ensure the good molding of the PLA fiber and the stability of the microcapsules in the fiber. The pressure is 1.5-2mpa. The appropriate pressure can make the fiber denser and improve the strength and wear resistance of the fiber. The speed is 1000-1200m per minute. This speed can ensure production efficiency while ensuring that the embedding depth of the microcapsules in the fiber is 1 / 3-1 / 2 of the fiber radius. Reasonable embedding depth can better combine the microcapsules with the PLA fiber, improve the quality and wrinkle-resistant performance of the fiber, and thus facilitate the uniform distribution and stable release of the sterilization ingredients and fragrance in the fiber.

[0020] Plasma treatment technology is one of the important means to improve the quality of PLA fiber quilts. The processing power is 50-80w and the processing time is 5-10 minutes. Within this power and time range, plasma treatment technology can enhance the binding force between microcapsules and PLA fibers, and improve the stability and durability of the quilt. At the same time, plasma treatment can also ensure the stability of fragrance release and the durability of sterilization effect while maintaining good anti-wrinkle performance. Through plasma treatment, the quality of PLA fiber quilts has been further improved, providing users with a better sleep experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a flow chart of a manufacturing process of a washable polylactic acid fiber material quilt. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0023] Embodiment 1: Reference Figure 1: A washable polylactic acid fiber material quilt, including a quilt cover made of polylactic acid fiber and internal filling. The quilt cover is divided into a quilt surface layer and a fluff layer. The quilt surface layer is woven with polylactic acid yarn with a specification of 40s, which has good strength and wear resistance and can withstand frequent cleaning and use in the hospital without being easily damaged. The fluff layer is located on the same side of the quilt surface layer and is composed of polylactic acid filaments with a specification of 75D, which brings a soft and comfortable touch to the patient, helps to relax the body and mind, and improves sleep quality. The quilt filling is a high-curl filament bundle of polylactic acid short fibers, with a length of 38mm, a fineness of 1.37D, and a curl of 5-20 / 25mm, providing good fluffiness and warmth retention, providing warmth and comfort for patients in the hospital environment.

[0024] The quilt cover and internal filling are both made of anti-wrinkle materials, including silicone finishing agents, silicone compounds with cross-linked structures, and nano-scale silica particles. The fibers in the quilt cover and internal filling are made of multi-layer microcapsule structures, including an inner layer, a middle layer, and an outer layer.

[0025] Production process and application in hospital: S1. Raw material preparation: Prepare raw materials such as polylactic acid fiber, silicone finishing agent, silicone compound with cross-linked structure, nano-silicon dioxide particles, aromatherapy essential oil, polyamide-amine dendrimer (PAMAM), etc. to provide a basis for subsequent production processes. In the hospital environment, ensure the quality and safety of raw materials to avoid adverse effects on patients. At the same time, select environmentally friendly raw materials to meet the hospital's requirements for green medical care.

[0026] S2. Anti-wrinkle material mixing: For the production of quilt covers, the silicone finishing agent is mixed with the polylactic acid fiber at a ratio of 3.5%-4.5% by weight of the polylactic acid fiber, the silicone compound with a cross-linked structure is mixed with the polylactic acid fiber at a ratio of 12%-13% by weight of the silicone finishing agent, and the nano-scale silica particles are mixed with the polylactic acid fiber at a ratio of 2.5%-3.5% by weight of the polylactic acid fiber. For the production of internal fillings, the silicone finishing agent is mixed with the polylactic acid fiber at a ratio of 3.0%-4.0% by weight of the polylactic acid fiber, the silicone compound with a cross-linked structure is mixed with the polylactic acid fiber at a ratio of 11%-13% by weight of the silicone finishing agent, and the nano-scale silica particles are mixed with the polylactic acid fiber at a ratio of 2.0%-3.0% by weight of the polylactic acid fiber. Such a ratio can make the quilt cover and the internal filling have good anti-wrinkle performance. In hospitals, the anti-wrinkle performance can keep the quilt stable in shape and make the sterilization components and aromatherapy essential oil microcapsules in the fiber more evenly distributed. The evenly distributed antibacterial ingredients can better play an antibacterial role, reduce the growth of bacteria in the hospital environment, and reduce the risk of infection for patients. At the same time, the even distribution of aromatherapy essential oil microcapsules can emit a comfortable aroma, relieve the patient's tension, promote sleep, and help the patient's recovery.

[0027] S3. Fiber production: The polylactic acid fiber mixed with anti-wrinkle materials is spun to produce the quilt cover and the fluff layer of the quilt cover, as well as the polylactic acid short fiber high-curl filament bundle for the internal filling. This ensures the quality and performance of the quilt cover and the internal filling. In the hospital, high-quality quilt covers and internal fillings can provide patients with a comfortable sleeping environment. At the same time, the environmental protection characteristics of polylactic acid fibers meet the hospital's requirements for sustainable development.

[0028] S4. Preparation of microcapsules: A multi-layer microcapsule structure is made. The inner layer is injected with the aromatherapy essential oil core. The middle layer uses a composite material of polyamide-amine dendrimer (PAMAM) and polylactic acid. The outer layer is made of a protective shell to control the diameter of the microcapsules to 6-9μm. This can achieve intelligent adjustment of aroma release according to ambient temperature and humidity. In hospitals, intelligent adjustment of aroma release can provide patients with a more comfortable sleeping environment. At the same time, the sensitivity of the middle layer to temperature and humidity can better control the release of aroma, avoiding the aroma being too strong or weak, affecting the patient's sleep quality.

[0029] S5. Microcapsule embedding: Through the co-spinning process, the microcapsules are embedded into the fibers of the quilt cover and internal fillings, and the spinning temperature is controlled at 200-220℃, the pressure is 1.5-2mpa, and the speed is 1000-1200m per minute, ensuring that the embedding depth of the microcapsules in the fibers is 1 / 3-1 / 2 of the fiber radius. This can make the microcapsules and fibers more closely combined, and improve the stability and durability of the quilt. In the hospital, the tightly combined microcapsules can better play the role of sterilization and fragrance. At the same time, the stable structure can keep the quilt in good performance after frequent use and washing, reducing the maintenance cost of the hospital.

[0030] S6, plasma treatment: plasma treatment technology is used, with a treatment power of 50-80w and a treatment time of 5-10 minutes to enhance the bonding force between microcapsules and polylactic acid fibers. This can improve the quality and performance of the quilt. In hospitals, the enhanced bonding force can make the quilt more durable, reduce the shedding of microcapsules, and ensure the long-term stability of the sterilization and fragrance effects.

[0031] S7. Low-temperature drying: After plasma treatment, a low-temperature drying process is added, and the drying temperature is controlled at 40-50°C for 30-60 minutes. Ensure that the quilt is fully dried after treatment to enhance the stability of the combination of microcapsules and polylactic acid fibers. In hospitals, fully dried quilts can avoid bacterial growth and improve hygiene levels. At the same time, stable bonding can make the quilt more comfortable during use and provide patients with a better sleeping experience.

[0032] S8. Optimize the formula of the middle layer composite material: During the preparation of microcapsules, optimize the formula of the middle layer composite material, increase the proportion of polylactic acid to 60%-70%, and adjust the proportion of polyamide-amine dendrimer (PAMAM) to 30%-40%, to ensure that the middle layer is more sensitive to temperature and humidity, so as to better control the release of fragrance. In hospitals, precise control of fragrance release can provide patients with a more comfortable sleeping environment. At the same time, the optimized formula can improve the performance of microcapsules, enhance the effects of sterilization and fragrance, and further improve the quality of quilts.

[0033] The washable polylactic acid fiber quilt and the manufacturing process thereof are particularly suitable for hospital environments. By adopting specific materials and manufacturing processes, good anti-wrinkle performance, antibacterial performance and comfortable fragrance emission function are achieved. These functions cooperate and complement each other, improve the overall performance of the quilt, provide patients with a more comfortable and hygienic sleeping environment, and help patients recover. At the same time, the quilt of the present invention meets environmental protection requirements and has broad market prospects and application value.

[0034] Embodiment 2: A washable polylactic acid fiber quilt and its production process, and its application in households: The washable polylactic acid fiber quilt and the manufacturing process thereof are also suitable for home environments. By adopting specific materials and manufacturing processes, good anti-wrinkle performance, antibacterial performance and comfortable fragrance emission function are achieved. These functions cooperate and complement each other, improve the overall performance of the quilt, and provide a more comfortable and healthy sleeping environment for home users.

[0035] Embodiment three: A washable polylactic acid fiber quilt and its production process, and its application in hotels: The washable polylactic acid fiber quilt and the manufacturing process thereof are more suitable for hotel environment. By adopting specific materials and manufacturing process, good wrinkle-proof performance, antibacterial performance and comfortable fragrance emission function are achieved. These functions cooperate and complement each other, improve the overall performance of the quilt, provide guests with a more comfortable and healthy sleeping environment, and also reduce the maintenance cost of the hotel and improve the competitiveness of the hotel.

[0036] Summarize: During the use of PLA fiber quilts, wrinkle-proof performance is crucial. The overall quality of the quilt can be effectively improved by combining anti-wrinkle materials in a specific ratio. The silicone finishing agent accounts for 3%-5% of the weight of the PLA fiber. This finishing agent can form a protective film on the fiber surface, increase the flexibility of the fiber, and reduce the generation of wrinkles. Among them, the silicone compound with a cross-linked structure accounts for 10%-15% of the weight of the silicone finishing agent. The cross-linked structure makes the finishing agent more stable and not easily destroyed by factors such as washing. Nano-scale silica particles account for 2%-4% of the weight of the PLA fiber. Nano-scale particles can fill the gaps between fibers, enhance the strength and wear resistance of the fibers, and further improve the anti-wrinkle performance. This ratio of anti-wrinkle material combination has been verified by many experiments to maintain the shape of the quilt without affecting the softness and comfort of the quilt. Moreover, the improvement of anti-wrinkle performance helps to make the sterilization components and aromatherapy essential oil microcapsules in the fiber more evenly distributed, so as to better play the role of sterilization and fragrance distribution.

[0037] In the weaving process, strict control of yarn tension and yarn density is crucial to the quality of the quilt. The yarn tension is controlled at 15-20n. The tension within this range can ensure that the yarn will not be too tight or loose during the weaving process, thereby ensuring that the quilt surface layer and the fluff layer are tightly combined. The yarn density is 120-150 yarns per square centimeter. The appropriate density can increase the thickness and warmth of the quilt, and also help to enhance the integrity and stability of the quilt. The use of double-sided weaving technology makes both sides of the quilt have a good appearance and texture, and can further strengthen the bonding between the quilt surface layer and the fluff layer. Through these improvements in yarn technology, not only can the wrinkle-proof performance of the quilt be improved, but it is also conducive to the uniform distribution of sterilization ingredients and fragrance, and improves the effect of sterilization and fragrance.

[0038] The polylactic acid fiber quilt adopts a multi-layer microcapsule structure, which has significant advantages. The inner layer is the core of the aromatherapy essential oil, such as lavender essential oil and lemongrass essential oil with a fresh and soothing aroma. These essential oils can provide users with a comfortable sleeping environment and relieve stress. The middle layer is a polymer material that is sensitive to temperature and humidity, such as a composite material of polyamide-amine dendrimer (pamam) and polylactic acid. This material can adjust the release rate of the fragrance according to the changes in ambient temperature and humidity, ensuring that the fragrance always remains within a suitable concentration range. The outer layer is a protective shell that can protect the essential oil and polymer material inside the microcapsule from damage by external factors. The diameter of the microcapsule is controlled at 5-10μm, which can not only ensure the stability of the microcapsule in the fiber, but also allow the fragrance to be fully released. This multi-layer microcapsule structure can make the sterilization ingredients and fragrance more evenly distributed in the fiber while maintaining good anti-wrinkle performance, thereby improving the sterilization effect and the stability of fragrance release.

[0039] The selection of essential oils has an important impact on the quality of PLA fiber quilts. Choose lavender essential oil, lemongrass essential oil and other essential oils with fresh and soothing aroma. These essential oils can not only provide users with a comfortable sleeping environment, but also have a certain sterilization effect. The concentration of essential oil microcapsules is 1%-2% of the weight of PLA fiber. Essential oils within this concentration range can provide users with a moderate fragrance without being too strong or weak while ensuring anti-wrinkle performance. At the same time, specific types and concentrations of essential oils help to evenly distribute and exert the sterilization ingredients, providing users with a healthier sleeping environment.

[0040] The control of the blended spinning process parameters is crucial to the quality of the PLA fiber quilt. The spinning temperature is 200-220℃, which can ensure the good molding of the PLA fiber and the stability of the microcapsules in the fiber. The pressure is 1.5-2mpa. The appropriate pressure can make the fiber denser and improve the strength and wear resistance of the fiber. The speed is 1000-1200m per minute. This speed can ensure production efficiency while ensuring that the embedding depth of the microcapsules in the fiber is 1 / 3-1 / 2 of the fiber radius. Reasonable embedding depth can better combine the microcapsules with the PLA fiber, improve the quality and wrinkle-resistant performance of the fiber, and thus facilitate the uniform distribution and stable release of the sterilization ingredients and fragrance in the fiber.

[0041] Plasma treatment technology is one of the important means to improve the quality of PLA fiber quilts. The processing power is 50-80w and the processing time is 5-10 minutes. Within this power and time range, plasma treatment technology can enhance the binding force between microcapsules and PLA fibers, and improve the stability and durability of the quilt. At the same time, plasma treatment can also ensure the stability of fragrance release and the durability of sterilization effect while maintaining good anti-wrinkle performance. Through plasma treatment, the quality of PLA fiber quilts has been further improved, providing users with a better sleep experience.

[0042] In summary, a washable polylactic acid fiber quilt achieves high quality and versatility by optimizing the proportion of anti-wrinkle materials, improving yarn technology, adopting a multi-layer microcapsule structure, selecting appropriate aromatherapy essential oils, improving production process parameters, and applying plasma treatment technology. It has good anti-wrinkle performance, sterilization effect, and fragrance distribution stability, providing users with a high-quality sleeping experience.

Claims

1. A washable polylactic acid fiber quilt, characterized in that: include: The quilt cover and internal filling are made of polylactic acid fiber. The quilt cover is divided into a quilt surface layer and a fluff layer. The quilt surface layer is woven with polylactic acid yarn with a specification of 40s. The fluff layer is located on the same side of the quilt surface layer and is composed of polylactic acid filaments with a specification of 75D. The quilt filling is a polylactic acid short fiber with high curling degree, with a length of 38mm, a fineness of 1.37D, and a curling degree of 5-20 / 25mm. Quilt cover and internal filling: both are made of anti-wrinkle materials, including: organic silicon finishing agent, organic silicon compound with cross-linking structure, nano-scale silicon dioxide particles; The fibers in both the duvet cover and the inner filling adopt a multi-layer microcapsule structure; including an inner layer, a middle layer and an outer layer.

2. A process for making a washable polylactic acid fiber quilt, characterized in that: The following steps are involved: S1. Raw material preparation: Prepare raw materials: including polylactic acid fiber, silicone finishing agent, silicone compound with cross-linked structure, nano-scale silica particles, aromatherapy essential oil, polyamide-amine dendrimer (PAMAM); S2. Anti-wrinkle material mixing: for the production of quilt covers, the polylactic acid fiber is mixed with an organosilicon finishing agent at a ratio of 3.5%-4.5% by weight of the polylactic acid fiber, the organosilicon compound with a cross-linked structure at a ratio of 12%-13% by weight of the organosilicon finishing agent, and the nano-scale silica particles at a ratio of 2.5%-3.5% by weight of the polylactic acid fiber; for the production of internal fillings, the organosilicon finishing agent is mixed with a ratio of 3.0%-4.0% by weight of the polylactic acid fiber, the organosilicon compound with a cross-linked structure at a ratio of 11%-13% by weight of the organosilicon finishing agent, and the nano-scale silica particles at a ratio of 2.0%-3.0% by weight of the polylactic acid fiber; S3, fiber production: The polylactic acid fiber mixed with the wrinkle-proof material is spun to produce the quilt cover and the fluff layer of the quilt cover, as well as the polylactic acid short fiber high-curl filament bundle for the internal filling; S4. Preparation of microcapsules: a multi-layer microcapsule structure is made, the inner layer is injected with the aromatherapy essential oil core, the middle layer is made of a composite material of polyamide-amine dendrimer (PAMAM) and polylactic acid, and the outer layer is made of a protective shell, and the diameter of the microcapsule is controlled to be 6-9μm; S5. Microcapsule embedding: The microcapsules are embedded into the fibers of the quilt cover and internal filling through the blending spinning process. The spinning temperature is controlled at 200-220°C, the pressure is 1.5-2 MPa, and the speed is 1000-1200 m / min. The embedding depth of the microcapsules in the fibers is ensured to be 1 / 3-1 / 2 of the fiber radius. S6. Plasma treatment: Plasma treatment technology is used with a processing power of 50-80w and a processing time of 5-10 minutes to enhance the bonding force between microcapsules and polylactic acid fibers.

3. The process for making a washable polylactic acid fiber quilt according to claim 2, characterized in that: During the weaving process, the yarn tension is controlled at 15-20N, the yarn density is 120-150 yarns per square centimeter, and double-sided weaving technology is adopted.

4. The process for making a washable polylactic acid fiber quilt according to claim 2, characterized in that: Select aromatherapy essential oil with a fresh and soothing aroma. The aromatherapy essential oil is one or both of lavender essential oil and lemongrass essential oil. The concentration of the aromatherapy essential oil microcapsule is 1%-2% of the weight of the polylactic acid fiber.

5. The process for making a washable polylactic acid fiber quilt according to claim 2, characterized in that: During the production process, the quilt cover and internal filling are treated with antibacterial agents using environmentally friendly antibacterial agents, with the amount of antibacterial agent added being 1.5%-2.5% of the weight of the polylactic acid fiber.

6. The process for making a washable polylactic acid fiber quilt according to claim 2, characterized in that: The quilt cover is waterproofed using a highly effective waterproofing agent, with the amount of waterproofing agent added being 2%-3% of the weight of the polylactic acid fiber.

7. The process for making a washable polylactic acid fiber quilt as claimed in claim 2, characterized in that: After the plasma treatment, a low-temperature drying process is added, and the drying temperature is controlled at 40-50°C for 30-60 minutes.

8. The process for making a washable polylactic acid fiber quilt as claimed in claim 2, characterized in that: During the preparation of the microcapsules, the formula of the intermediate layer composite material is optimized, the proportion of polylactic acid is increased to 60%-70%, and the proportion of polyamide-amine dendrimer (PAMAM) is adjusted to within the range of 30%-40%.

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