Dalbergia odorifera pillow inner and preparation method thereof

Abstract

The invention discloses a lignum dalbergiae odoriferae pillow interior and a preparation method, and relates to the technical field of lignum dalbergiae odoriferae pillow interior preparation, the lignum dalbergiae odoriferae pillow interior comprises 20%-28% of lignum dalbergiae odoriferae filler, 72%-80% of auxiliary filler and 72% The lignum dalbergiae odoriferae filler is lignum dalbergiae odoriferae heartwood particles subjected to activating treatment, and the particle size is 3-5mm The auxiliary filler is a mixture of breathable moisture-conducting fibers and natural latex particles, the breathable moisture-conducting fibers account for 60%-70% of the mass of the auxiliary filler, and the natural latex particles account for 30%-40% of the mass of the auxiliary filler; the outer wrapping layer of the pillow inner is of a double-layer leakage-proof structure, the inner layer is made of nanoscale breathable moisture-conducting fabric, and the outer layer is made of antibacterial and anti-mite fabric. The dalbergia odorifera heartwood is pretreated by adopting drying at specific temperature and time conditions and an ethanol fumigation fragrance extraction process, so that water is efficiently removed, fragrance components are improved, the dryness of dalbergia odorifera filler is ensured, the mildew risk is reduced, the fragrance concentration is improved through fumigation, and the quality of dalbergia odorifera is improved. And the final product has better relaxing and sleep-aiding effects.

Description

Technical Field

[0001] The invention relates to the technical field of preparation of a dalbergia fragrance pillow core, in particular to a dalbergia fragrance pillow core and a preparation method thereof. Background Art

[0002] The preparation technology of sandalwood pillow core is a technology specially used to manufacture pillow cores with specific functions. This core mainly uses specially treated sandalwood heartwood as filling material.

[0003] In the field of agarwood pillow core preparation, in the existing technology, the herbal filling has not been activated, and the fragrance release is unstable, resulting in a short-lived sleep-aiding effect. Conventional pillow cores are prone to mold growth due to uncontrolled drying conditions. In addition, ordinary pillow cores are prone to local hardening or collapse after use due to uneven mixing of the filling. Summary of the Invention

[0004] In view of the above existing problems, the present invention is proposed.

[0005] Therefore, the present invention provides a dalbergia fragrance pillow core to solve the problems in the prior art, in which the herbal filling has not been activated, the fragrance release is unstable, resulting in a short-lived sleep-aiding effect, the conventional pillow core is prone to mold growth due to uncontrolled drying conditions, and the ordinary pillow core is prone to local hardening or collapse after use due to uneven mixing of the filling.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] In a first aspect, the present invention provides a dalbergia fragrance pillow core, comprising:

[0008] 20% to 28% of the dalbergia wood filling, 72% to 80% of the auxiliary filling and 72% to 80% of the pillow core outer layer;

[0009] The dalbergia wood filler is activated dalbergia wood heartwood particles with a particle size of 3 to 5 mm;

[0010] The auxiliary filler is a mixture of breathable and moisture-conducting fibers and natural latex particles, wherein the breathable and moisture-conducting fibers account for 60% to 70% of the auxiliary filler mass and the natural latex particles account for 30% to 40%;

[0011] The outer covering layer of the pillow core adopts a double-layer leak-proof structure, the inner layer is a nano-level breathable and moisture-conducting fabric, and the outer layer is an antibacterial and anti-mite fabric.

[0012] In a first aspect, the present invention provides a method for preparing a dalbergia fragrance pillow core, the preparation method comprising:

[0013] The heartwood of Dalbergia odorifera is pretreated by an activation treatment method to obtain Dalbergia odorifera filling material;

[0014] The breathable and moisture-conducting fibers are uniformly mixed with natural latex particles through a mixing process to obtain an auxiliary filler;

[0015] The dalbergia filler and the auxiliary filler are filled into the outer layer of the pillow core in proportion by adopting a layered filling process to obtain a primary finished product;

[0016] The primary finished product is sealed by adopting a hot pressing edge sealing process to obtain the agarwood pillow core.

[0017] As a preferred embodiment of the preparation method of the dalbergia fragrance pillow core of the present invention, the activation treatment method comprises the following specific steps: cutting the heartwood of dalbergia fragrance into particles of 3 to 5 mm and drying them at 60±5°C for 4 to 6 hours; treating the dried dalbergia fragrance particles with an ethanol fumigation and aroma extraction process; in the fumigation and aroma extraction process, the fumigation time is 2 to 3 hours, the ethanol concentration is 75% to 85%, and the fumigation temperature is 40 to 50°C.

[0018] As a preferred embodiment of the preparation method of the agarwood pillow core of the present invention, the mixing process comprises the following specific steps: adding breathable and moisture-conducting fibers and natural latex particles in a mass ratio of 6:4 to 7:3 into a three-dimensional motion mixer, mixing at 20 to 25 revolutions per minute for 3 to 5 minutes to preliminarily disperse agglomerates; then increasing the speed to 30 to 40 revolutions per minute and mixing for 10 to 15 minutes, pausing for 1 minute every 3 minutes to avoid local overheating; after the mixing is completed, removing agglomerated particles with a particle size greater than 1 mm by vibration screening to obtain an auxiliary filler.

[0019] As a preferred embodiment of the method for preparing the agarwood pillow core of the present invention, the layered filling process comprises the following specific steps: evenly spreading 50% of the auxiliary filler into the bottom of the outer layer of the pillow core, with a thickness controlled to be 2 to 3 cm; laying the agarwood filler on the auxiliary filler in a grid-like distribution; the grid spacing is 5 to 8 cm; covering the remaining 50% of the auxiliary filler on top of the agarwood filler to form the outermost layer of the pillow core, and making the density of the three layers of filler consistent through an airflow vibration device.

[0020] As a preferred embodiment of the preparation method of the dalbergia fragrance pillow core of the present invention, the inner layer of the double-layer leak-proof structure of the outer layer of the pillow core is made of a polyester-based nanofiber membrane with a pore size of 0.1 to 0.3 μm, a porosity of ≥85%, and a moisture permeability of ≥5000 g / m 2 The outer fabric is made of silver ion antibacterial fabric with a silver content of 50-100 mg / kg, a warp and weft density ≥200T, and a warp breaking strength ≥500N.

[0021] As a preferred embodiment of the preparation method of the agarwood pillow core of the present invention, the hot pressing edge sealing process comprises the following specific steps: placing the edge sealing area on a preheating plate at 100-110°C to soften for 10 seconds; using a pulsed hot pressing head to press at 120-130°C for 5-8 seconds; the surface of the hot pressing head is covered with a high-temperature resistant silicone pad to prevent adhesion; after pressing, blowing with cold air at 10-15°C for 10 seconds to quickly solidify the edge sealing area and obtain the agarwood pillow core.

[0022] As a preferred embodiment of the method for preparing the agarwood pillow core of the present invention, during the activation treatment of the agarwood filling, the dried agarwood particles are cooled to 25±2°C at a rate of ≤5°C / minute in a closed nitrogen protection environment, and then subjected to an ethanol fumigation and aroma extraction process after cooling; the oxygen concentration in the nitrogen protection environment is controlled at ≤0.5% to prevent oxidation loss of the agarwood active ingredients.

[0023] As a preferred embodiment of the method for preparing the agarwood pillow core of the present invention, the double-layer leak-proof structure of the outer layer of the pillow core needs to be subjected to a negative pressure test after filling is completed. Specifically, the pillow core is placed in a sealed cabin and vacuumed to -50 kPa and the pressure is maintained for 30 seconds; a laser displacement sensor is used to detect the volume change of the pillow core, and it is judged to be qualified when the volume shrinkage rate is ≤1%; pillow cores that fail the test need to readjust the filling process parameters and be reworked.

[0024] As a preferred embodiment of the method for preparing the agarwood pillow core of the present invention, the oscillation parameters of the airflow oscillation device need to be dynamically adjusted according to the total weight of the filling, and the oscillation frequency is positively correlated with the weight of the filling; during the oscillation process, the density differences of various parts of the pillow core are monitored, and when the difference exceeds 5%, the oscillation time is automatically extended by 10-15 seconds; after the oscillation is completed, the pillow core needs to be left to stand for 5 minutes to allow the filling to naturally settle and take shape.

[0025] The beneficial effects of the present invention are as follows: by pre-treating the heartwood of the agarwood by drying under specific temperature and time conditions and by using an ethanol fumigation fragrance extraction process, efficient moisture removal and enhancement of aroma components are achieved, which not only ensures the dryness of the agarwood filling and reduces the risk of mildew, but also increases the fragrance concentration through fumigation, so that the final product has a better relaxation and sleep-inducing effect. Through the layered filling process, especially distributing the agarwood filling in a grid shape between the auxiliary fillings, and using an air flow oscillation device to make the density of each layer consistent, the agarwood substance is evenly distributed in the pillow core and its fragrance is effectively released, which not only maximizes the calming effect of the agarwood, but also ensures the stability and comfort of the overall structure of the pillow core. The preliminary finished product is sealed at a specific temperature by a pulsed hot pressure head, and the edge sealing area is quickly solidified by blowing cold air, so that good sealing of the edge of the pillow core is achieved, which not only effectively prevents the leakage of the filling and enhances the durability of the product, but also improves the appearance texture. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 The flowchart of the preparation method of the dalbergia fragrance pillow core in Example 1 is shown. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0031] Example 1, with reference to Figure 1 , which is the first embodiment of the present invention, provides a dalbergia fragrance pillow core and a preparation method thereof, comprising the following components:

[0032] 20% to 28% of the dalbergia wood filling, 72% to 80% of the auxiliary filling and 72% to 80% of the pillow core outer layer;

[0033] The filling material is activated sandalwood heartwood particles with a particle size of 3 to 5 mm.

[0034] The auxiliary filling material is a mixture of breathable and moisture-conducting fibers and natural latex particles, wherein the breathable and moisture-conducting fibers account for 60% to 70% of the auxiliary filling material and the natural latex particles account for 30% to 40%;

[0035] The outer layer of the pillow core adopts a double-layer leak-proof structure, the inner layer is nano-level breathable and moisture-conducting fabric, and the outer layer is antibacterial and anti-mite fabric;

[0036] The inner layer of the double-layer leak-proof structure of the pillow core is made of polyester-based nanofiber membrane with a pore size of 0.1-0.3μm, a porosity of ≥85%, and a moisture permeability of ≥5000g / m 2 ;

[0037] The outer fabric is made of silver ion antibacterial fabric with a silver content of 50-100 mg / kg, a warp and weft density ≥ 200T, and a warp breaking strength ≥ 500N;

[0038] The double-layer leak-proof structure of the pillow core outer layer needs to be tested for negative pressure after filling. Specifically:

[0039] Place the pillow core in a sealed chamber and evacuate to -50kPa and maintain the pressure for 30 seconds;

[0040] A laser displacement sensor is used to detect the volume change of the pillow core, and it is judged to be qualified when the volume shrinkage rate is ≤1%;

[0041] Pillow cores that fail the inspection must be reworked after adjusting the filling process parameters.

[0042] The preparation method thereof comprises:

[0043] S1. Pretreating the heartwood of Dalbergia odorifera by an activation treatment method to obtain a Dalbergia odorifera filling;

[0044] Furthermore, the heartwood of Dalbergia odorifera is cut into particles of 3 to 5 mm and dried at 60±5° C. for 4 to 6 hours;

[0045] The dried Dalbergia odorifera particles were treated with ethanol fumigation and aroma extraction technology;

[0046] In the fumigation aroma process, the fumigation time is 2 to 3 hours, the ethanol concentration is 75% to 85%, and the fumigation temperature is 40 to 50°C;

[0047] During the activation treatment of the agarwood filling material, the dried agarwood particles need to be cooled to 25±2°C at a rate of ≤5°C / min in a closed nitrogen atmosphere. After cooling, the ethanol fumigation process is carried out.

[0048] The oxygen concentration in the nitrogen protection environment is controlled at ≤0.5% to prevent the oxidation loss of the active ingredients of Dalbergia odorifera;

[0049] It should be noted that by cooling the agarwood particles in a closed nitrogen-protected environment and strictly controlling the oxygen concentration to ≤0.5%, the oxidation loss of the agarwood's active ingredients can be effectively prevented, ensuring the persistence and stability of the agarwood filling's aroma. This not only improves the quality of the product, but also extends the service life of the pillow core, enabling it to maintain a good aroma release effect for a long time, providing users with a continuously comfortable sleeping experience.

[0050] S2. uniformly mixing the breathable and moisture-conducting fibers with the natural latex particles using a mixing process to obtain an auxiliary filler;

[0051] Furthermore, the breathable and moisture-conducting fibers and natural latex particles are put into a three-dimensional motion mixer at a mass ratio of 6:4 to 7:3 and mixed at 20 to 25 revolutions per minute for 3 to 5 minutes to preliminarily disperse the agglomerates;

[0052] Then increase the speed to 30-40 rpm and mix for 10-15 minutes, pausing for 1 minute every 3 minutes to avoid local overheating;

[0053] After mixing, agglomerated particles with a particle size greater than 1 mm are removed by vibration screening to obtain auxiliary fillers;

[0054] It should be noted that during the mixing process, by adjusting the rotation speed in stages and pausing at appropriate times to avoid local overheating, and finally using vibration screening to remove large particle agglomerates, it can not only ensure the uniform distribution of breathable and moisture-conducting fibers and natural latex particles, but also significantly improve the overall performance and comfort of the auxiliary filling, help reduce local hardness differences caused by uneven materials, thereby improving the user's sleep quality, and is also beneficial to quality control in the production process.

[0055] S3, using a layered filling process to fill the dalbergia filler and the auxiliary filler into the outer layer of the pillow core in proportion to obtain a primary finished product;

[0056] Furthermore, 50% of the auxiliary filling is evenly spread into the bottom of the outer layer of the pillow core, with a thickness of 2 to 3 cm;

[0057] Laying the agarwood filling material on the auxiliary filling material in a grid-like distribution manner;

[0058] The grid spacing is 5 to 8 cm;

[0059] The remaining 50% of the auxiliary filling is covered on top of the agarwood filling to form the outermost layer of the pillow core, and the density of the three layers of filling is made consistent through an air flow vibration device;

[0060] The oscillation parameters of the airflow oscillation device need to be dynamically adjusted according to the total weight of the filling, and the oscillation frequency is positively correlated with the filling weight;

[0061] During the vibration process, the density difference of each part of the pillow core is monitored. When the difference exceeds 5%, the vibration time is automatically extended by 10-15 seconds.

[0062] After shaking, let it stand for 5 minutes to allow the filling to settle naturally and take shape;

[0063] It should be noted that the layered filling process adopts a grid-like distribution of agarwood filling material, combined with an airflow oscillation device to dynamically adjust parameters to ensure density consistency. This not only maximizes the properties of the agarwood material, but also ensures that the support and comfort of each part of the pillow core are balanced and consistent. This method is particularly suitable for the manufacturing of products that require high-precision control. It not only improves the functionality and user experience of the product, but also reflects the advanced and scientific nature of the production process.

[0064] S4, using a hot pressing edge sealing process to seal the primary finished product to obtain a dalbergia fragrance pillow core;

[0065] Furthermore, the edge-sealed area was placed on a preheating plate at 100-110°C to soften for 10 seconds;

[0066] Use pulse hot pressing head to press at 120-130℃ for 5-8 seconds;

[0067] The surface of the hot pressing head is covered with a high temperature resistant silicone pad to prevent adhesion;

[0068] After pressing, cold air at 10-15°C is blown for 10 seconds to quickly solidify the edge-sealed area, thereby obtaining the agarwood pillow core;

[0069] It should be noted that the hot-pressing edge sealing process adopts a method that combines a pulsed hot pressure head with cold air blowing, which not only achieves good sealing and aesthetics in the edge sealing area, but also improves production efficiency through rapid curing technology. This process ensures the durability and tear resistance of the edge sealing, reduces the risk of filler leakage during use, and at the same time, the application of high-temperature resistant silicone pads effectively avoids adhesion problems, further improving product quality and user experience.

[0070] In summary, the present invention pretreats the heartwood of sandalwood by drying under specific temperature and time conditions and ethanol fumigation and fragrance extraction technology, thereby achieving efficient removal of moisture and enhancement of aroma components, not only ensuring the dryness of the aloeswood filling and reducing the risk of mildew, but also increasing the fragrance concentration through fumigation, so that the final product has a better relaxation and sleep-inducing effect, through the layered filling process, especially distributing the aloeswood filling in a grid shape between the auxiliary fillings, and using an air flow oscillation device to make the density of each layer consistent, the uniform distribution of the aloeswood substance in the pillow core and the effective release of its fragrance are achieved, which not only maximizes the calming effect of the aloeswood, but also ensures the stability and comfort of the overall structure of the pillow core, and seals the pre-finished product at a specific temperature through a pulsed hot pressure head, and combines with cold air blowing to quickly solidify the edge sealing area, thereby achieving good sealing of the edge of the pillow core, which not only effectively prevents the leakage of the filling, enhances the durability of the product, but also improves the appearance texture.

[0071] Example 2, referring to Table 1, is the second embodiment of the present invention. In order to further verify the technical solution of the present invention, experimental simulation data of a dalbergia fragrance pillow core is provided.

[0072] This example aims to verify the preparation method and performance advantages of a dalbergia fragrance pillow core. A commercially available ordinary herbal pillow core was selected as a control sample. Dalbergia fragrance pillow core samples were prepared according to the technical solution in the invention. The specific steps are as follows:

[0073] The heartwood of Dalbergia odorifera was cut into particles with a particle size of 3 to 5 mm, placed in a constant temperature drying oven, and dried at 60°C for 5 hours. The dried particles were transferred to a nitrogen protection environment, cooled to 25°C at a rate of 4°C / minute, and then subjected to an ethanol fumigation and fragrance extraction process; the fumigation conditions were 80% ethanol concentration, 45°C temperature, and time for 2.5 hours. During this process, the oxygen concentration was strictly controlled to be ≤0.5% to avoid oxidation of the active ingredients.

[0074] Put the breathable and moisture-conducting fiber (65%) and natural latex particles (35%) into a three-dimensional motion mixer, first mix them at a low speed of 22 rpm for 4 minutes, then increase the speed to 35 rpm and mix for 12 minutes, pausing for 1 minute every 3 minutes. After mixing, remove agglomerated particles with a particle size greater than 1 mm through vibration screening to ensure the uniformity of the filling.

[0075] Evenly spread 50% of the supplementary filling material at the bottom of the pillow's outer covering, maintaining a thickness of 2.5 cm. Place the agarwood filling material in a grid pattern with a 6 cm grid spacing. Cover the remaining 50% of the supplementary filling material on top of the agarwood layer, creating a three-layer structure. Use an airflow oscillation device (12 Hz frequency, 30 seconds) to maintain a consistent filling density. Allow the material to rest for 5 minutes to set.

[0076] The edge sealing area is preheated to 105℃ and softened for 10 seconds, pressed for 6 seconds using a pulsed hot press head (125℃, pressure 0.4MPa), and cured by blowing with cold air (12℃) for 10 seconds. The finished product is subjected to negative pressure testing: vacuumed to -50kPa and maintained for 30 seconds. The volume shrinkage rate detected by the laser displacement sensor is ≤1% to be qualified.

[0077] Performance testing and data recording

[0078] The test items include fragrance persistence, breathability, antibacterial properties, support and durability. The specific data are shown in Table 1 below:

[0079]

[0080]

[0081] Table 1: Performance comparison of dalbergia fragrance pillow core and ordinary herbal pillow core

[0082] Data Analysis and Conclusions:

[0083] The fragrance of the agarwood pillow core lasts significantly longer than that of ordinary herbal pillow cores (90 days vs. 15 days). This is due to the nitrogen protection cooling and ethanol fumigation process, which effectively locks the volatile oil components of the agarwood. The fragrance components of ordinary pillow cores degrade rapidly due to the uncontrolled oxidation process.

[0084] The moisture permeability data shows that the dalbergia pillow core (5200g / m 2 ·24h) than the control sample (3200g / m 2 This is attributed to the high porosity (≥85%) of the nanofiber inner layer and the density optimization of the layered filling process, which avoids the stuffy feeling of traditional pillow cores.

[0085] The silver ion outer layer ensures that the agarwood pillow's antibacterial rate against Staphylococcus aureus reaches 99.5%, far exceeding the 70% of ordinary pillows. This feature significantly reduces the risk of bacterial growth during long-term use.

[0086] In the resilience test, the agarwood pillow core (88%) performed exceptionally well, thanks to the airflow oscillation process that uniformly controls the filling density. Ordinary pillow cores only had a 65% resilience due to uneven filling and local collapse.

[0087] Data from negative pressure detection leakage rate (0.8% vs 3.5%) and service life (18 months vs 6 months) prove that the double-layer leak-proof structure and hot-pressed edge sealing process effectively solve the problems of traditional pillow cores being prone to leakage and deformation.

[0088] Example 3

[0089] Weigh each component according to the weight ratio, and add 20g of agarwood filling (accounting for 20% of the total amount), 52g of breathable and moisture-conducting fiber (accounting for 65% of the auxiliary filling), 28g of natural latex particles (accounting for 35% of the auxiliary filling) and 80g of the pillow core outer layer (polyester-based nanofiber membrane + silver ion antibacterial fabric composite structure).

[0090] Preparation method:

[0091] Activation treatment of Dalbergia wood: Dalbergia wood particles (particle size 4 mm) were dried at 60°C for 5 hours, cooled to 25°C under nitrogen protection, and then fumigated with 80% ethanol at 45°C for 2.5 hours;

[0092] Auxiliary filling material mixing: Mix in a three-dimensional motion mixer at 22 rpm for 4 minutes, then at 35 rpm for 12 minutes, pausing intermittently to remove heat;

[0093] Layered filling: 40g of auxiliary filling (2.5cm thick) is placed on the bottom layer, agarwood is distributed in a grid pattern in the middle layer (with a spacing of 6cm), and the top layer is covered with 40g of auxiliary filling. Oscillate with 12Hz airflow for 30 seconds.

[0094] Edge sealing: preheat at 105℃ for 10 seconds, pulse hot pressing at 125℃ for 6 seconds, and cold air curing at 12℃.

[0095] Example 4

[0096] The dalbergia fragrance filling is adjusted to 24g (24%), the breathable and moisture-conducting fiber is 49g (61.25%), the natural latex particles are 31g (38.75%), and the outer covering is 76g.

[0097] Preparation parameter optimization:

[0098] The fumigation time of Dalbergia aroma was extended to 3 hours (85% ethanol, 50°C);

[0099] The mixing speed was increased to 38 rpm;

[0100] The air flow oscillation frequency was adjusted to 15 Hz.

[0101] Example 5

[0102] The dalbergia filling is increased to 28g (28%), the breathable and moisture-conducting fiber is 46g (63.9%), the natural latex particles are 26g (36.1%), and the outer covering is 72g.

[0103] The particle size of the agarwood particles is reduced to 3mm to enhance the release of fragrance, and the hot pressing temperature is increased to 130℃ to strengthen the edge sealing.

[0104] Comparative Example 1

[0105] The nitrogen protection cooling and ethanol fumigation process were not used, and the dalbergia fragrance was only dried at 60° C. for 5 hours. The rest was the same as in Example 3.

[0106] Comparative Example 2

[0107] The layered filling process is eliminated, and the agarwood and auxiliary filling materials are directly mixed and packed into the pillowcase at one time.

[0108] Comparative Example 3

[0109] Commercially available ordinary memory foam pillow core (no fragrance ingredients, single-layer polyurethane filling).

[0110] The details are shown in Table 2 below:

[0111]

[0112]

[0113] Table 2: Comparative test results of the performance of the agarwood pillow core

[0114] Data Analysis and Conclusions:

[0115] Example 4 (24% dalbergia odorifera) has the best overall performance: fragrance persistence of 105 days, moisture permeability of 5400g / m 2 24h: Due to the moderate increase in the proportion of agarwood and the extension of the fumigation time, the aroma release is more lasting.

[0116] Comparison of Example 3 (20% dalbergia fragrance) and Example 5 (28% dalbergia fragrance) shows that too high a dalbergia fragrance content may lead to a decrease in filling uniformity (86% rebound resilience vs. 90%).

[0117] The aroma of Control Example 1 (without nitrogen protection) lasted only 30 days, confirming the key role of nitrogen oxidation protection in retaining volatile oils.

[0118] The moisture permeability of control example 2 (mixed filling) dropped sharply to 3500g / m 2 24 hours, highlighting the effect of the layered structure on improving breathability.

[0119] The antibacterial rates of Examples 3-5 are all ≥99.3%, far exceeding those of commercially available products (only 60% in Control Example 3), and the synergistic effect of silver ion fabrics and dalbergia fragrance is significant.

[0120] User satisfaction data showed that layered filling and airflow oscillation technology had a statistically significant effect on improving comfort (p<0.05).

[0121] Example 3 (20% Dalbergia odorifera) and Example 4 (24% Dalbergia odorifera) are the best solutions, taking into account both efficacy and cost-effectiveness. It is recommended to select this ratio range for mass production.

[0122] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A dalbergia fragrance pillow core, characterized by: It includes the following ingredients: 20% to 28% of the dalbergia wood filling, 72% to 80% of the auxiliary filling and 72% to 80% of the pillow core outer layer; The dalbergia wood filler is activated dalbergia wood heartwood particles with a particle size of 3 to 5 mm; The auxiliary filler is a mixture of breathable and moisture-conducting fibers and natural latex particles, wherein the breathable and moisture-conducting fibers account for 60% to 70% of the auxiliary filler mass and the natural latex particles account for 30% to 40%; The outer covering layer of the pillow core adopts a double-layer leak-proof structure, the inner layer is a nano-level breathable and moisture-conducting fabric, and the outer layer is an antibacterial and anti-mite fabric.

2. A method for preparing a dalbergia fragrance pillow core, the dalbergia fragrance pillow core according to claim 1, characterized in that: The preparation method thereof comprises: The heartwood of Dalbergia odorifera is pretreated by an activation treatment method to obtain Dalbergia odorifera filling material; The breathable and moisture-conducting fibers are uniformly mixed with natural latex particles through a mixing process to obtain an auxiliary filler; The dalbergia filler and the auxiliary filler are filled into the outer layer of the pillow core in proportion by adopting a layered filling process to obtain a primary finished product; The primary finished product is sealed by adopting a hot pressing edge sealing process to obtain the agarwood pillow core.

3. The method for preparing the dalbergia fragrance pillow according to claim 2, wherein: The activation treatment method comprises the following specific steps: Cut the heartwood into 3-5 mm particles and dry them at 60±5℃ for 4-6 hours; The dried Dalbergia odorifera particles were treated with ethanol fumigation and aroma extraction technology; In the fumigation aroma extraction process, the fumigation time is 2 to 3 hours, the ethanol concentration is 75% to 85%, and the fumigation temperature is 40 to 50°C.

4. The method for preparing the dalbergia fragrance pillow according to claim 3, wherein: The mixing process comprises the following specific steps: Put the breathable and moisture-conducting fibers and natural latex particles into a three-dimensional motion mixer at a mass ratio of 6:4 to 7:3, and mix at 20 to 25 revolutions per minute for 3 to 5 minutes to initially disperse the agglomerates; Then increase the speed to 30-40 rpm and mix for 10-15 minutes, pausing for 1 minute every 3 minutes to avoid local overheating; After the mixing is completed, agglomerated particles with a particle size greater than 1 mm are removed by vibration screening to obtain an auxiliary filler.

5. The method for preparing the dalbergia fragrance pillow according to claim 4, wherein: The layered filling process comprises the following specific steps: Evenly spread 50% of the auxiliary filling material on the bottom of the pillow core outer layer, with a thickness of 2 to 3 cm; Laying the agarwood filling material on the auxiliary filling material in a grid-like distribution manner; The grid spacing is 5 to 8 cm; The remaining 50% of the auxiliary filling is covered on the agarwood filling to form the outermost layer of the pillow core, and the density of the three layers of filling is made consistent through an air flow vibration device.

6. The method for preparing the dalbergia fragrance pillow according to claim 5, wherein: The inner layer of the double-layer anti-leakage structure of the pillow core outer layer is made of polyester-based nanofiber membrane with a pore size of 0.1-0.3 μm, a porosity of ≥85%, and a moisture permeability of ≥5000 g / m 2 ; The outer fabric is made of silver ion antibacterial fabric with a silver content of 50-100 mg / kg, a warp and weft density ≥200T, and a warp breaking strength ≥500N.

7. The method for preparing the dalbergia fragrance pillow according to claim 6, wherein: The hot pressing edge sealing process comprises the following specific steps: Place the edge-sealed area on a preheating plate at 100-110°C to soften for 10 seconds; Use pulse hot pressing head to press at 120-130℃ for 5-8 seconds; The surface of the hot pressing head is covered with a high temperature resistant silicone pad to prevent adhesion; After pressing, cold wind at 10-15° C. is used to blow for 10 seconds to quickly solidify the edge-sealed area, thereby obtaining the agarwood pillow core.

8. The method for preparing the dalbergia fragrance pillow according to claim 7, wherein: During the activation treatment of the agarwood filling material, the dried agarwood particles need to be cooled to 25±2°C at a rate of ≤5°C / min in a closed nitrogen protection environment, and then subjected to an ethanol fumigation and aroma extraction process after cooling; The oxygen concentration of the nitrogen protection environment is controlled at ≤0.5% to prevent the oxidation loss of the effective components of the dalbergia odorifera.

9. The method for preparing the dalbergia fragrance pillow according to claim 8, wherein: The double-layer leak-proof structure of the pillow core outer layer needs to be subjected to negative pressure testing after filling is completed, specifically: Place the pillow core in a sealed chamber and evacuate to -50kPa and maintain the pressure for 30 seconds; A laser displacement sensor is used to detect the volume change of the pillow core, and it is judged to be qualified when the volume shrinkage rate is ≤1%; Pillow cores that fail the inspection must be reworked after adjusting the filling process parameters.

10. The method for preparing the dalbergia fragrance pillow according to claim 9, wherein: The oscillation parameters of the airflow oscillation device need to be dynamically adjusted according to the total weight of the filling, and the oscillation frequency is positively correlated with the filling weight; During the vibration process, the density difference of each part of the pillow core is monitored, and when the difference exceeds 5%, the vibration time is automatically extended by 10-15 seconds; After shaking, let it sit for 5 minutes to allow the filling to settle naturally and take shape.

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