Pistacia weinmannifolia antibacterial fragrant pillow

Abstract

The invention provides a Pistacia weinmannifolia antibacterial fragrant pillow, and relates to the technical field of antibacterial sleep-aiding bedding, the Pistacia weinmannifolia antibacterial fragrant pillow comprises a pillow body, a sheath, a Pistacia weinmannifolia pillow inner and a pillowcase, the pillow body is provided with a plurality of air holes transversely and longitudinally penetrating through the pillow body, a pillow inner cavity is formed in the pillow body, the sheath covers the outer side of the Pistacia weinmannifolia pillow inner, and the pillowcase covers the pillow inner cavity. The pillow inner cavity is detachably arranged in the pillow body through the opening in one side of the pillow body, the pillow cover detachably covers the outer surface of the pillow body, and the pillow has the characteristics of fragrance, bacteriostasis and mosquito and insect repelling, and can continuously and slowly release aromatic components.

Description

Technical Field

[0001] The invention belongs to the technical field of antibacterial sleep-aiding bedding, and particularly relates to an antibacterial aromatic pillow made of fragrant wood. Background Art

[0002] Traditional pillows are filled with a variety of materials, including fiber cotton, sponge, cotton wool, and down. Existing pillow core materials often suffer from poor antibacterial properties and odor permeability. To improve the sleep environment and enhance pillow functionality, attempts have been made to fill pillows with traditional Chinese medicine herbs or natural grains. Natural materials such as buckwheat hulls, cassia seeds, and lavender are already commercially available, offering some breathability or fragrance. However, these natural fillings have limited antibacterial properties and fragrance durability, and their functionality is limited.

[0003] The genus Citriodora is native to southwestern China. It is often cultivated for its pleasant, natural fragrance. Existing literature indicates that Citriodora is rich in volatile aromatic oils, with numerous bioactive components found in its leaves, seeds, and bark. Key aroma components include styraxene, β-myrcene, α-phellandrene, limonene, ethyl octynoate, methyl cinnamate, caryophyllene, and humulene, which give Citriodora its unique aroma. Importantly, research has demonstrated that the active compounds in Citriodora leaf oil exhibit significant inhibitory effects against a variety of pathogenic microorganisms, including Gram-positive bacteria (such as Staphylococcus aureus), Gram-negative bacteria (such as Escherichia coli), and fungi (such as Rhodotorula). Terpenes and macrolides in Citriodora essential oil are believed to be the primary antibacterial components, effectively inhibiting bacterial and fungal growth. Therefore, Citriodora leaf volatile oil is considered a natural broad-spectrum antimicrobial agent. Furthermore, the odor emitted by Citriodora has a repellent effect on pests such as mosquitoes. In summary, fragrant wood combines natural fragrance, antibacterial properties, mosquito and insect repellent properties, and other beneficial properties, making it very suitable as a filling material for functional pillow cores. However, there are currently no public reports on the use of fragrant wood in sleeping pillows. By combining the volatile aroma of fragrant wood with the pillow, the aroma can be slowly released through the pillow, achieving both antibacterial and hygienic bedding properties while also repelling mosquitoes and insects. Therefore, this application proposes a fragrant wood antibacterial and aromatic pillow. Summary of the Invention

[0004] In order to overcome the problems in the background technology, the present invention develops a fragrant wood antibacterial aromatic pillow, which has aromatic, antibacterial, mosquito and insect repellent properties and can continuously release aromatic components.

[0005] To achieve the above object, the present invention is implemented through the following technical solutions: A fragrant wood antibacterial aromatic pillow comprises a pillow body, a protective cover, a fragrant wood pillow core and a pillow cover. The pillow body is provided with a plurality of air vents which penetrate the pillow body in the transverse and longitudinal directions. A pillow core cavity is formed inside the pillow body. The fragrant wood pillow core is covered with the protective cover on the outside and can be detachably installed into the pillow core cavity through an opening on one side of the pillow body. The pillow cover can be detachably covered on the outer surface of the pillow body.

[0006] Furthermore, the protective cover comprises a breathable outer cover, an oil-absorbing and dirt-isolating cover and a limiting cover from the outside to the inside, the fragrant wood pillow core is evenly placed in the limiting cover, and the fragrant wood pillow core is filled with a fragrant wood composite matrix.

[0007] Furthermore, the breathable jacket is made of breathable fabric and is provided with a quick-release opening.

[0008] Furthermore, the oil absorption and dirt isolation sleeve is made of an absorbent fabric, and is provided with a quick-release opening.

[0009] Furthermore, the oil-absorbing and dirt-isolating sleeve is a double-layer composite structure of oleophilic melt-blown polypropylene non-woven fabric and cyclodextrin modified fabric, the inner layer is oleophilic melt-blown polypropylene non-woven fabric with an oil adsorption rate of ≥8g / g, and the outer layer is cyclodextrin modified fabric with a cyclodextrin fixed amount of ≥2mg / cm².

[0010] Furthermore, the limiting sleeve is made of mesh fabric and is provided with a quick-release opening.

[0011] Furthermore, the fragrant wood composite matrix filled in the fragrant wood pillow core is composed of fragrant wood leaves, fragrant wood seeds and fragrant wood bark.

[0012] A method for making a fragrant wood pillow core comprises the following steps: S1. Raw material pretreatment: Select the leaves, seeds and bark of fragrant wood that are free of insects and mildew; The three raw materials were immersed in 0.05wt% sodium hypochlorite solution for 5 minutes, then rinsed with clean water, and then rinsed with running water for 1 minute; Leaf drying: pre-drying with hot air at 30°C for 30 minutes; drying with hot air at 37°C for 60 minutes, intermittent circulation for 10 minutes of blowing, and 5 minutes of standing; drying in a vacuum at 38°C to 40°C, -0.08MPa, for 40 minutes, until the moisture content is ≤8%; Seed drying: 90°C hot air drying until the moisture content is ≤6%; Bark drying: hot air drying at 60°C until the moisture content is ≤10%; S2. Leaf film coating: Dry leaves were sheared at low or low temperatures to 2–3 mm (shearing temperature ≤ 25°C). A 1 wt% chitosan solution (pH 4.8, 25°C) was applied for 2 min. The leaves were then dried at 38°C under a vacuum of -0.06 MPa to a moisture content ≤ 9%. The volatile oil content of the treated leaves was determined to be ≥ 0.40 wt% on a dry basis using headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry. S3, seed treatment: steam the seeds at 100°C for 3 min, spray 2 wt% beeswax at 60°C, and drum cool at room temperature to solidify the wax; S4, bark shaping: cut the bark into 8–12 mm × 1–2 mm strips, heat-bend them at 120°C with steam for 15 min, and cool them into an “S”-shaped elastic skeleton; S5. Compounding: Mix 50% of thuja serrata leaves, 25% of thuja serrata seeds, and 25% of thuja serrata bark in a weight ratio, and mix in a horizontal rotary drum for 8 minutes to obtain a thuja serrata composite matrix; S6. Pillow core filling: The aromatic wood composite matrix is placed into the pillow core cover and sealed. After standing for 24 hours at 23°C and 50% RH, the pillow core cover is placed into the protective cover, and then placed into the outer pillow body for use.

[0013] Beneficial effects of the present invention: 1. This invention utilizes a three-layer structure consisting of a breathable outer shell, an oil-absorbing and dirt-isolating shell, and a retaining shell to effectively resolve the conflict between pillow core protection and breathability. The breathable outer shell ensures the release of fragrance and air circulation, the retaining shell ensures the pillow core remains fixed and prevents displacement and deformation, and the oil-absorbing and dirt-isolating layer reduces contamination of the outer layer by oily substances in the pillow core while also slowly releasing volatile fragrance, reducing cleaning frequency. This multi-layered structure keeps the pillow core dry and clean while also facilitating disassembly, cleaning, and replacement.

[0014] 2. The fragrant wood composite matrix imparts long-lasting fragrance, antibacterial, and mosquito repellent properties: The fragrant wood composite matrix used in this pillow core is rich in the natural volatile oils of fragrant wood. This matrix continuously and slowly releases a fragrant aroma, providing a pleasant natural fragrance for the sleeping environment while also repelling mosquitoes, thereby enhancing sleep comfort and safety. The active ingredients in the fragrant wood inhibit a variety of bacteria and fungi, preventing the generation of odors and harmful microorganisms, and improving the hygiene of bedding. Compared to traditional pillow core materials, this pillow core is naturally mite-resistant and can be kept clean without the need for chemical additives.

[0015] 3. The pillow core is made of fragrant wood leaves, bark seeds, which are widely available, easy to cultivate, and biodegradable, which is in line with the green and low-carbon trend. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the outer pillow body of the present invention; Figure 2 It is a structural schematic diagram of the fragrant wood pillow core of the present invention. DETAILED DESCRIPTION

[0017] In order to make the objectives, technical solutions and beneficial effects of the present invention more clear, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding by technicians.

[0018] See Figure 1-2 The present invention proposes a fragrant wood antibacterial aromatic pillow, comprising an outer pillow body 1, a protective cover 2, a fragrant wood pillow core 3 and a pillowcase 4. The outer pillow body 1 is provided with a plurality of air holes 11 which penetrate the outer pillow body 1 transversely and longitudinally. A pillow core cavity 12 is formed inside the outer pillow body 1. The outer side of the fragrant wood pillow core 3 is covered with the protective cover 2 and can be detachably installed into the pillow core cavity 12 through an opening on one side of the outer pillow body 1. The pillowcase 3 can be detachably covered on the outer surface of the outer pillow body 1.

[0019] See Figure 1-2 The protective sheath 2 is composed of a breathable outer cover 31, an oil-absorbing and dirt-isolating cover 32 and a limiting cover 33 from the outside to the inside. The fragrant wood pillow core 2 is evenly placed in the limiting cover 33. The fragrant wood pillow core 2 is filled with a fragrant wood composite matrix, which is composed of fragrant wood leaves, fragrant wood seeds and fragrant wood bark.

[0020] The outer pillow body 1 is provided with a plurality of air holes 11 running through it in the horizontal and vertical directions, forming a three-dimensional ventilation network, which can quickly exchange the core body with the outside air, reduce the accumulation of moisture and heat, and help to continuously emit the fragrant wood fragrance; a pillow core cavity 12 is formed inside the outer pillow body, and the elasticity of the cavity wall is used to accommodate the pillow core and disperse the pressure on the head and neck, thereby improving the uniformity of support.

[0021] The fragrant wood pillow core 3 is covered with a protective cover 2 on the outside, and can be removed through an opening on one side of the outer pillow body 1 to enter the pillow core cavity 12, which is convenient for regular drying or replacement of the core material, ensuring long-term stability of the antibacterial and aromatic properties; the pillowcase 4: can be detachably covered on the outer surface of the outer pillow body 1 and is used for direct contact with the skin. Its washable feature makes the overall pillow easy to maintain, hygienic and safe.

[0022] See Figure 1-2 The breathable jacket 31 is made of breathable fabric. The breathable jacket is responsible for rapid moisture removal and fragrance transmission. A zipper quick-release opening is provided on the breathable jacket 31 for easy separate washing or replacement.

[0023] See Figure 1-2 The oil-absorbing and dirt-isolating cover 32 is made of absorbent fabric and is provided with a quick-release opening. The oil-absorbing and dirt-isolating cover 32 is a double-layer composite structure of oleophilic melt-blown polypropylene non-woven fabric and cyclodextrin modified fabric. The inner layer is oleophilic melt-blown polypropylene non-woven fabric, and the outer layer is cyclodextrin modified fabric, which intercepts the grease seeping from the pillow core and slowly releases volatile oil.

[0024] See Figure 1-2The limiting sleeve 33 is made of mesh fabric, which stabilizes the shape of the core and prevents displacement. A quick-release opening is provided on the limiting sleeve 33 to facilitate drying or replacing the fragrant wood composite matrix.

[0025] Example 1 Pillow body: Take environmentally friendly PU foam and injection mold to form the outer pillow body 1, with a size of 60×40×10cm, and punch through the horizontal and vertical ventilation holes 11 at a hole pitch of 5mm×5mm, with a hole density of 25 holes / 100cm², forming a pillow core cavity 12 inside.

[0026] jacket: The breathable jacket 31 is made of pure cotton knit fabric, with three sides stitched and one side equipped with a zipper quick-release opening; The oil-absorbing and dirt-isolating sleeve 32 adopts a double-layer composite structure of oleophilic melt-blown polypropylene non-woven fabric and cyclodextrin-modified fabric, with three sides sewn together and one side equipped with a zipper quick-release opening; the inner layer of melt-blown fabric weighs 30g / m² and has an oil adsorption rate of ≥8g / g¹, and the outer layer of cotton gauze is treated with 25g / L of β-cyclodextrin and medium-chain triglycerides, with a cyclodextrin fixed amount of ≥2mg / cm²; this structure can maintain 80% of its oil absorption capacity after ≥30 household washes, and can slowly release monoterpenoid volatiles within 90 days, thereby preventing oil leakage from the pillow core and maintaining long-lasting fragrance.

[0027] The limit sleeve 33 is made of mesh fabric, sewn on three sides, with a zipper quick-release opening on one side, and the inside is sewn with a honeycomb grid.

[0028] Preparation of Fragrant Wood Composite Matrix S1. Raw material pretreatment: Select the leaves, seeds and bark of fragrant wood that are free of insects and mildew; The three raw materials were immersed in 0.05wt% sodium hypochlorite solution for 5 minutes, then rinsed with clean water, and then rinsed with running water for 1 minute; Leaf drying: pre-drying with hot air at 30°C for 30 minutes; drying with hot air at 37°C for 60 minutes, intermittent circulation for 10 minutes of blowing, and 5 minutes of standing; drying in a vacuum at 38°C to 40°C, -0.08MPa, for 40 minutes, until the moisture content is ≤8%; Seed drying: 90°C hot air drying until the moisture content is ≤6%; Bark drying: hot air drying at 60°C until the moisture content is ≤10%; S2. Leaf film coating: Dry leaves were sheared to 2–3 mm using low-shear or low-temperature shearing (≤25°C). A 1 wt% chitosan solution (pH 4.8, 25°C) was applied for 2 min. The leaves were then dried at 38°C under a vacuum of -0.06 MPa to a moisture content of ≤9%. HS-SPME / GC-MS analysis revealed that the volatile oil content of the treated leaves was ≥0.40 wt% on a dry basis. The volatile oil primarily contained terpenes and esters, including β-myrcene and ethyl octynoate. S3, seed treatment: steam the seeds at 100°C for 3 min, spray 2 wt% beeswax at 60°C, and drum cool at room temperature to solidify the wax; S4, bark shaping: cut the bark into 8–12 mm × 1–2 mm strips, heat-bend them at 120°C with steam for 15 min, and cool them into an “S”-shaped elastic skeleton; S5. Compounding: Mix 50% of thuja serrata leaves, 25% of thuja serrata seeds, and 25% of thuja serrata bark in a weight ratio, and mix in a horizontal rotary drum for 8 minutes to obtain a thuja serrata composite matrix; S6. Pillow core filling: The aromatic wood composite matrix is placed into the pillow core cover and sealed, and then placed in the cover after standing at 23°C and 50% RH for 24 hours.

[0029] Place the fragrant wood pillow core 3 prepared by S1-S6 into the pillow core cavity 12, and place the outer pillow body 1 into the cotton pillowcase. The finished pillow looks no different from an ordinary pillow, but a light and elegant scent of fragrant wood can be smelled when gently pressed. This is the fragrant wood antibacterial aromatic pillow of Example 1.

[0030] Performance testing: 1. The oil absorption and dirt isolation sleeve of Example 1 was subjected to performance tests. The test indicators were oil absorption rate (g / g), initial air resistance (Pa), volatile oil sustained release 30d retention rate (%), and oil absorption retention rate after washing (%). The test data are shown in Table 1.

[0031] Sample Description Inner layer: 30g / m² oleophilic meltblown polypropylene non-woven fabric.

[0032] Outer layer: 40g / m² cotton leno, fixed with 25g / L MCT-β-cyclodextrin at 160°C for 2 minutes, with a β-cyclodextrin fixation of 2.3mg / cm².

[0033] Table 1 Performance data of oil absorption and dirt isolation sleeve The test results are the mean ± standard deviation of three parallel samples.

[0034] Result Analysis The oil absorption rate reaches 8.5g / g, proving that the meltblown PP layer can quickly lock in fragrant wood seeds and wax exudates; the air resistance is 22Pa, which is far below the body's stuffiness threshold of 30Pa, ensuring that the pillow core is breathable and heat-dissipating, and the 30-day volatile oil retention rate is 68%, which is due to the entrainment-sustained release effect of the β-cyclodextrin cavity, which can maintain the stable release of monoterpenoid aroma; after 30 water washings, the oil absorption function still retains 80%, meeting the needs of long-term washable use.

[0035] 2. Performance test of the fragrant wood antibacterial fragrance pillow in Example 1 1. Sample preparation: Sample 1 was prepared according to Example 1 in the specification; Sample 2 used a buckwheat hull pillow with the same size and effective pillow core capacity as Sample 1.

[0036] 2. High-humidity exposure: Two groups of samples were placed in a constant temperature and humidity chamber (model: BPS-300CH) for 90 consecutive days. The mold level was visually recorded every 30 days. After the exposure, the pillow core was disassembled and the odor was detected.

[0037] 3. Fragrance retention test: 5 cm³ of air was collected from the pillow core using a headspace solid-phase microextraction needle. The peak areas of the main fragrance components (β-myrcene, ethyl octynoate, caryophyllene, etc.) were quantified using GC-MS. The retention rate was calculated with the initial peak area as 100%.

[0038] 4. Rebound test: 8×10 at 75% compression ratio 4 After a dynamic compression cycle, the height recovery rate was measured after standing for 30 minutes.

[0039] 5. Subjective evaluation: 30 volunteers aged 25–55 years used the pillows for 30 nights and completed the Sleep Comfort Questionnaire to evaluate support, odor, dryness, and overall satisfaction.

[0040] Test data Result Analysis Anti-mildew and antibacterial: Sample A still had grade 0 mildew spots after 90 days of high humidity exposure, and the antibacterial rate against two representative bacteria was >98%, which was significantly better than the control; this proved that the modification treatment of fragrant wood volatile oil with chitosan and beeswax gave the pillow core long-lasting antibacterial ability.

[0041] Fragrance persistence: The 90-day retention rate of the main fragrance component of the fragrant wood is 62%, which is much higher than the <10% of the buckwheat hull pillow, proving that the aroma sustained-release structure of the present invention is effective.

[0042] Mechanical properties: The support body composed of the outer pillow body and the fragrant wood composite matrix has a compression permanent deformation of only 6.1%, which meets the rebound requirement of soft furniture ≥ 92% and will not collapse after long-term use.

[0043] User experience: Overall satisfaction rating was 4.7 / 5. Participants generally reported a soothing odor and good cervical support. 28 participants reported a significant reduction in mosquito nuisance in summer.

[0044] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A fragrant wood antibacterial aromatic pillow, characterized by: The invention comprises an outer pillow body (1), a protective cover (2), a fragrant wood pillow core (3) and a pillow cover (4), wherein the outer pillow body (1) is provided with a plurality of air holes (11) which penetrate the outer pillow body (1) in the transverse and longitudinal directions, and a pillow core cavity (12) is formed inside the outer pillow body (1), the fragrant wood pillow core (3) is covered with the protective cover (2) on the outside and can be detachably installed in the pillow core cavity (12) through an opening on one side of the outer pillow body (1), and the pillow cover (4) can be detachably covered on the outer surface of the outer pillow body (1).

2. The fragrant wood antibacterial aroma pillow according to claim 1, characterized in that: The protective cover (2) comprises, from the outside to the inside, a breathable outer cover (31), an oil-absorbing and dirt-isolating cover (32), and a limiting cover (33). The fragrant wood pillow core (2) is evenly placed in the limiting cover (33), and the fragrant wood pillow core (2) is filled with a fragrant wood composite matrix.

3. The fragrant wood antibacterial aroma pillow according to claim 2, characterized in that: The breathable jacket (31) is a breathable jacket (31) made of breathable fabric, and a quick-release opening is provided on the breathable jacket (31).

4. The antibacterial fragrance pillow made of fragrant wood according to claim 2, characterized in that: The oil absorption and dirt isolation sleeve (32) is an oil absorption and dirt isolation sleeve (32) made of an adsorption fabric, and a quick-release opening is provided on the oil absorption and dirt isolation sleeve (32).

5. The fragrant wood antibacterial aroma pillow according to claim 4, characterized in that: The oil-absorbing and dirt-isolating sleeve (32) is a double-layer composite structure of an oleophilic melt-blown polypropylene non-woven fabric and a cyclodextrin-modified fabric, wherein the inner layer is an oleophilic melt-blown polypropylene non-woven fabric with an oil adsorption rate of ≥8 g / g, and the outer layer is a cyclodextrin-modified fabric with a cyclodextrin fixed amount of ≥2 mg / cm².

6. The fragrant wood antibacterial aroma pillow according to claim 2, characterized in that: The limiting sleeve (33) is made of mesh fabric, and a quick-release opening is provided on the limiting sleeve (33).

7. The fragrant wood antibacterial aroma pillow according to claim 2, characterized in that: The fragrant wood composite matrix filled in the fragrant wood pillow core (2) is composed of fragrant wood leaves, fragrant wood seeds and fragrant wood bark.

8. A method for making a fragrant wood pillow core, characterized in that: The fragrant wood antibacterial aromatic pillow according to any one of claims 1 to 7 comprises the following steps: S1. Raw material pretreatment: Select the leaves, seeds and bark of the fragrant wood that are not infested with insects or mold, soak them in sodium hypochlorite solution, rinse them with clean water, and dry them with hot air; S2. Leaf film coating: Crush the dried leaves at low temperature; dip-coat with chitosan solution, and then vacuum dry. After drying, the volatile oil content of the leaves of the fragrant wood is ≥0.40wt%; S3. Seed treatment: steam-kill the seeds, spray beeswax at high temperature, and cool the seeds in a drum at room temperature to solidify the wax. S4. Bark shaping: Cut the bark into strips, bend them using steam heating, and cool them into an "S"-shaped elastic skeleton; S5. Compounding: Mix 50% of safflower oil tree leaves, 25% of safflower oil seeds, and 25% of safflower oil bark in a weight ratio, and mix them in a horizontal rotary drum to obtain a safflower oil composite matrix; S6. Filling the pillow core: The aromatic wood composite matrix is placed into the pillow core cover and sealed. After standing for 24 hours, the pillow core cover is placed into the protective cover, and then the outer pillow body is placed.

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