Wool anion quilt core flocculus

Abstract

The invention belongs to the technical field of functional quilt cores, and discloses a wool anion quilt core flocculus which comprises an upper fabric layer, a non-woven fabric layer, a wool anion core layer and a lower fabric layer. The upper fabric layer, the non-woven fabric layer and the lower fabric layer are sequentially compounded from top to bottom, and the wool anion core layer is located in the non-woven fabric layer; the wool anion core layer is composed of wool fibers and anion fibers, and the wool fibers wrap the anion fibers; the upper fabric layer is divided into a left area, a middle area and a right area, and the density of the middle area is higher than that of the left and right areas; the lower fabric layer is divided into a left area, a middle area and a right area, and the density of the middle area is lower than that of the left area and the right area. According to the wool anion quilt core flocculus, the natural hygroscopicity of wool and the characteristics of anion fibers are combined, excitation and circulation of negative oxygen ions are effectively promoted, and a healthy and comfortable sleep environment can be created.

Description

Technical Field

[0001] The invention belongs to the technical field of functional quilt cores and relates to a wool negative ion quilt core flake. Background Art

[0002] In recent years, with people's increasing emphasis on sleep health, the development of functional comforters has gradually transitioned from "mere warmth" to a new stage of "health empowerment." From a technological perspective, the first phase of products (such as cotton and synthetic quilts) primarily addressed basic warmth needs; the second phase achieved dynamic temperature regulation through technologies such as phase change materials and far-infrared fibers; and the current third generation, centered on health functions, has entered.

[0003] Behind this trend lies consumers' urgent need for a "healthy sleep ecosystem." In particular, when choosing bedding, they prioritize health features, with antibacterial and anti-mite properties, negative ion purification, and hypoallergenic properties being the three most sought-after health factors.

[0004] Negative oxygen ions are of great significance to maintaining human health because they have significant functions such as antibacterial, sterilization, deodorization and air purification. However, traditional wool quilts have obvious limitations. They do not have the ability to generate and release negative ions, and therefore cannot provide these additional health benefits to users.

[0005] The negative ion textiles in the prior art have not fully utilized the advantages of wool in practical applications. They have not fully utilized the moisture absorption and warmth retention of wool, and in terms of structural design, they have not taken into account the effective stimulation and circulation of negative ions. For example, although washable negative ion wool fiber can be prepared in the literature (Preparation and performance testing of washable negative ion wool fiber home textile products [J]. Textile Testing and Standards, 2019, 5(5):5.DOI:CNKI:SUN:FZCB.0.2019-05-007.), there are still the following deficiencies: 1) Although the study improved the negative ion release by compounding Iorina powder and Kayacera finishing agent, it did not deeply explore the synergistic mechanism of the wool fiber's own hygroscopicity, warmth retention and negative ion excitation, and only focused on the release index, ignoring the integrated utilization of wool's natural properties; 2) The process design relies on the physical attachment of external finishing agents (such as Iorina powder), which will affect the softness and breathability of wool fibers, and does not clarify the correlation between the persistence of negative ion release and the microstructure of wool fibers. Therefore, overall, this technology still belongs to the "passive loading" mode, and fails to achieve the organic integration of the intrinsic properties of wool fibers and negative ion functions.

[0006] Therefore, it is of great significance to study a kind of wool negative ion quilt core flakes to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to solve the problems existing in the prior art and provide a wool negative ion quilt core sheet, which can fully utilize the natural hygroscopicity of wool and the characteristics of negative ion fibers to create a healthier and more comfortable sleeping microenvironment.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0009] A wool negative ion quilt core sheet comprises an upper fabric layer, a non-woven fabric layer, a wool negative ion core layer and a lower fabric layer;

[0010] The upper fabric layer, the non-woven fabric layer and the lower fabric layer are compounded in sequence from top to bottom, and the wool negative ion core layer is located in the non-woven fabric layer;

[0011] The wool negative ion core layer is composed of wool fibers and negative ion fibers, and the negative ion fibers are wrapped by wool fibers;

[0012] The upper fabric layer is divided into three areas: left, center, and right. The density of the center area is higher than that of the left and right areas. Except for the density, all other parameters of the left, center, and right areas of the upper fabric layer remain consistent, resulting in a low air permeability in the center area and a high air permeability in the left and right areas. The air permeability of the center area is below 100mm / s, while the air permeability of the left and right areas is 100-300mm / s. This restricts the longitudinal dissipation of negative ions and promotes lateral moisture exchange.

[0013] The lower fabric layer is divided into three areas: left, middle and right. The density of the middle area is lower than that of the left and right areas. Except for the density, the other parameters of the left, middle and right areas of the lower fabric layer are consistent. Therefore, the air permeability of the middle area is high, and the air permeability of the left and right areas is low. The air permeability of the middle area is 350~500mm / s, and the air permeability of the left and right areas is less than 100mm / s, so that the torso area (accounting for 36% of the human body surface area) can be dehumidified first and the limbs can be kept warm during sleep.

[0014] The overall design of the wool negative ion quilt core flake structure of the present invention includes four main levels:

[0015] (1) Upper fabric layer: adopts a dual-density design with high density in the middle and low density on both sides to optimize the preservation of negative ions and the exchange of moisture between wool and the outside air;

[0016] (2) Non-woven fabric layer: located under the upper fabric layer, providing good breathability and serving as a protective layer and isolation layer;

[0017] (3) Wool negative ion core layer: Utilizing the high hygroscopicity of wool (water content 8~40wt%) and the excitation characteristics of negative ion fibers, negative oxygen ions are generated, which have antibacterial, sterilizing, deodorizing and air purification functions, helping to maintain human health; in addition, high hygroscopicity means that wool can absorb and release moisture, providing a comfortable experience for the wearer, especially in a dynamically changing environment, and also enables wool fibers to perfectly absorb and retain the sweat produced by the human body during sleep, thereby keeping the skin dry;

[0018] (4) Lower fabric layer: Similar to the upper fabric layer, but with high density on both sides and low density in the middle to promote the release and circulation of negative oxygen ions.

[0019] The wool negative ion core layer can be prepared using existing technology. The detailed preparation steps are as follows:

[0020] 1. Fiber pretreatment and precise proportioning;

[0021] The preparation of wool negative ion core layer begins with the strict selection and pretreatment of fibers. 16~24μm wool and negative ion fibers (polyester contains tourmaline, negative ion release ≥4500 ions / cm 3 The wool is degreased with a 4% sodium carbonate solution at 45°C, removing natural lipids to a residual rate of less than 0.5%, ensuring the fiber's hydrophilicity. The negative ion fiber is plasma activated at 30-60°C (500W, Ar / O2 atmosphere), forming active groups on the surface to enhance charge capture. Lamination is achieved using a three-dimensional dynamic proportioning system (60% wool + 40% negative ion fiber) in a 20-layer progressive layup structure, achieving a weight accuracy of no more than ±3% per square meter.

[0022] 2. Acupuncture compound and structural strengthening;

[0023] A three-stage gradient needling process is used to construct a three-dimensional interpenetrating network: ① Pre-needling (800 needles / cm², 10mm depth) forms the base entanglement layer; ② Main needling (2200 needles / cm², 15mm depth) achieves deep longitudinal fiber penetration, creating a delamination-resistant framework; ③ Finish needling (1200 needles / cm², 8mm depth) densifies the surface layer, achieving a bursting strength of over 350N. The entire process is performed in an environment of 35-40°C and 65% RH to eliminate static interference.

[0024] The above-mentioned needle punching process can form a stable structure by mechanically entangled the negative ion fibers and the wool fibers, without the risk of peeling during washing.

[0025] The steps for preparing the above-mentioned wool negative ion quilt core flakes are as follows:

[0026] (1) Non-woven fabric composite;

[0027] The upper and lower surfaces of the obtained wool negative ion core layer are respectively sprayed (dot) with hot melt adhesive, and then hot-pressed and bonded with the upper and lower fabric layers; wherein the glue point density is 15-20 points / cm 2 , the hot-pressing temperature is 110-130℃, and the pressure is 0.3-0.5MPa;

[0028] (2) heat setting;

[0029] The product after hot-pressing and bonding in step (1) is placed in a humidity-controllable oven to stabilize the flake structure; wherein the temperature is 150-160℃, the air speed is 1.5-2.5m / s, and the setting time is 1-2min;

[0030] (3) fabric compounding;

[0031] After the upper and lower fabric layers of the product after heat setting are quilted in different count areas, a wool negative ion core flake is obtained; wherein the quilted pattern is running water, diamond or honeycomb pattern, and the quilted speed is 2000-4000rpm.

[0032] As a preferred technical solution:

[0033] The wool negative ion core flake as described above, the mass fraction of wool fibers in the wool negative ion core layer is 20-80%, and the mass fraction of negative ion fibers is 80-20%.

[0034] The wool negative ion core flake as described above, the ratio of the area of the middle region to the total area of the left and right regions of the upper fabric layer is 2-3:1;

[0035] The ratio of the area of the middle region to the total area of the left and right regions of the lower fabric layer is 2:1-3:1.

[0036] The wool negative ion core flake as described above, the density of the middle region of the upper fabric layer is 80-150 count, and the density of the two side regions is 40 count or less;

[0037] The density of the middle region of the lower fabric layer is 30 count or less, and the density of the two side regions is 50 count or more.

[0038] The wool negative ion core flake as described above, the air permeability of the non-woven fabric layer is 500mm / s or more.

[0039] The wool negative ion core flake as described above, the thickness of the upper fabric layer is 0.3-1.0mm. The upper fabric layer adopts a double-density design, with high density in the middle and low density on both sides. High-count fabric is usually thin, while low-count fabric may be slightly thicker. However, as the upper layer of the core, both protective and breathable properties need to be considered, and the thickness range is between 0.3-1.0mm.

[0040] As described above, the wool negative ion quilt core sheet has a non-woven fabric layer whose thickness is 0.3-0.8 mm, which is relatively thin to maintain lightness and high breathability.

[0041] As described above, the thickness of the wool negative ion quilt core layer is 15 to 50 mm. As the core layer, its thickness is crucial for warmth preservation and moisture absorption.

[0042] The thickness of the lower fabric layer of the wool negative ion quilt mentioned above is 0.5-2.0mm. The lower fabric layer is similar to the upper fabric layer, but the density design is opposite, with low density in the middle and high density on both sides. It may need to be softer when in direct contact with the skin, and the thickness is similar to the upper layer, 0.3-2.0mm.

[0043] The wool negative ion quilt core sheet described above has a thermal resistance of 0.9-1.5 clo in winter and 0.6-1.2 clo in summer. The test conditions for the thermal resistance in winter are 20°C and 50% RH, and the test conditions for the thermal resistance in summer are 28°C and 65% RH. This shows that the wool negative ion quilt core sheet of the present invention has excellent thermal comfort. The thermal resistance can be adjusted by changing the thickness of the wool negative ion core layer.

[0044] The negative ion release of the wool negative ion quilt core flakes decays by less than 20% after 10 washes; the abrasion resistance measured by the Martindale method is ≥20,000 times, and the surface fuzzing level is level 4 when rubbed more than 20,000 times.

[0045] Principle of the invention:

[0046] The wool negative ion blanket core flake structure of the present invention is scientifically designed with multi-layer materials. When the human body is covered with the flake structure, it can effectively promote the stimulation and circulation of negative oxygen ions (such as Figure 6 Its overall structure includes an upper fabric layer, a non-woven fabric layer, a wool negative ion core layer, and a lower fabric layer. The upper fabric layer adopts a dual-density design, with a high density in the middle to limit the dissipation of negative oxygen ions, and low density on both sides to ensure that the wool exchanges moisture with the outside air; the non-woven fabric layer is highly breathable and serves as a protective and insulating layer; in the wool negative ion core layer, wool fibers are combined with negative ion fibers. The high hygroscopicity of wool enables it to absorb human sweat and keep dry. At the same time, under the stimulation of human body temperature and friction, negative ions are stimulated, further ionizing water (sweat or moisture absorbed by the human body when covered with the wadding) to generate negative oxygen ions; the lower fabric layer adopts a dual-density design, with a low density in the middle to promote the return of human sweat (moisture) and negative oxygen ions to the clothing environment. This structural design ensures the efficient stimulation and circulation of negative oxygen ions, creating a healthy and comfortable sleeping environment for the user.

[0047] The synergistic effect between the negative ion fiber and the wool fiber in the present invention specifically includes the following points:

[0048] 1. Charge excitation synergy:

[0049] The scale structure of wool fiber surface (friction coefficient 0.2~0.3) and negative ion fiber (containing tourmaline) generate triboelectric effect through human micro-movement, exciting electrostatic field (voltage up to 0.5~2kV).

[0050] When wool wraps negative ion fiber, the negative ion release amount is significantly improved (compared with single negative ion fiber), because the natural lipid (residual <0.5%) of wool reduces the charge dissipation rate.

[0051] 2. Humidity-ion conversion synergy:

[0052] The moisture gradient of wool (normal 8%→high humidity 40%) forms a dynamic water molecule layer, and the negative ion fiber produces ionization reaction (H2O→H + + OH - →H3O2 - ) when the humidity is >15%.

[0053] The humidity-ion conversion synergy between wool fiber and negative ion fiber is mainly realized through three-stage dynamic coupling:

[0054] First, the initial moisture absorption stage (15%~30% humidity), the hydrophilic group on the surface of wool quickly adsorbs water molecules to form a nanoscale water film.

[0055] Second, the dynamic equilibrium stage (humidity >30% and ≤40%), the wicking effect of wool maintains the humidity gradient in the pore (40% on the outside→25% on the inside), driving H3O + oriented migration, and combining with the electrons released by the negative ion fiber to generate stable superoxide hydroxyl ions (H3O2 - ).

[0056] Finally, the high-humidity activation stage (humidity >40%), the wool moisture absorption and swelling and the piezoelectric effect of tourmaline are superimposed, exciting electron emission and combining with H3O2 - to form air anion clusters, achieving explosive release, and significantly prolonging the duration.

[0057] In summary, the combination of wool fiber and negative ion fiber realizes the functional improvement of "1+1>2" through the synergy of humidity regulation and ion release.

[0058] 3. Structure interlocking effect:

[0059] 4 The needle punching process makes the wool fiber penetrate the negative ion fiber to form a three-dimensional network, with a contact point density >10 4 cm², ensuring that the fiber shedding rate is <3% after 10 washes.

[0060] Beneficial effects:

[0061] (1) The present invention relates to a wool negative ion quilt core sheet, wherein the wool negative ion core layer utilizes the high hygroscopicity of wool and the excitation characteristics of negative ion fibers to generate negative oxygen ions. Since negative oxygen ions are believed to be beneficial to human health, such as antibacterial, sterilizing, deodorizing and air purification, they can increase the health benefits and transfer them to the bedding environment, can directly act on the human body, be beneficial to human health, and can provide a sleeping environment with suitable temperature and humidity. The generated negative oxygen ions help improve sleep quality.

[0062] (2) The present invention can optimize the preservation of negative ions and the moisture exchange between wool and the outside air by setting the density of the middle area of ​​the upper fabric layer to be higher than the density of the left and right areas, and can promote the release and circulation of negative oxygen ions by setting the density of the middle area of ​​the lower fabric layer to be lower than the density of the left and right areas.

[0063] (3) The wool negative ion quilt core flake structure designed by the present invention can improve the functionality and comfort of the wool quilt core flakes and increase the market competitiveness of the product. The materials used are also natural materials and environmentally friendly technologies, which meet the current demand for sustainable development and environmentally friendly products. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 This is a schematic structural diagram of the wool negative ion quilt core piece of the present invention;

[0065] Figure 2 Schematic diagram of the structure of the upper fabric layer of the present invention;

[0066] Figure 3 Schematic diagram of the structure of the non-woven fabric layer of the present invention;

[0067] Figure 4 This is a schematic structural diagram of the wool negative ion core layer of the present invention;

[0068] Figure 5 Schematic diagram of the structure of the lower fabric layer of the present invention;

[0069] Figure 6 A schematic diagram of the principle of effectively promoting the excitation and circulation of negative ions when the human body is covered with the wool negative ion quilt core piece of the present invention;

[0070] Among them, 1-upper fabric layer, 1.1-middle area of ​​the upper fabric layer, 2-non-woven fabric layer, 3-wool negative ion core layer, 4-lower fabric layer, 4.1-middle area of ​​the lower fabric layer. DETAILED DESCRIPTION

[0071] Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiments are only used to illustrate the present invention and are not used in limiting the scope of the present invention.In addition, should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall equally within the scope limited by the appended claims of the application.

[0072] In order to ensure that the properties of the materials used in each embodiment are fully disclosed, the manufacturers and brands of some materials are stated. Products of other manufacturers and brands that meet the requirements of the present invention are also feasible.

[0073] The test methods for the relevant performance indicators in the following embodiments are as follows:

[0074] Negative ion release: The wool negative ion quilt core pieces obtained in each example were used as samples, and then the negative ion release of the samples was measured using a COM-3200PRO II negative ion tester at a temperature of 23°C and a humidity of 50% RH, with reference to GB / T 30128-2013 "Test and Evaluation of Negative Ion Generation from Textiles". The sample size was 20 cm × 20 cm and was not folded.

[0075] Negative ion release after 6 months of continuous use: The wool negative ion quilt core pieces obtained in each embodiment were used as samples, and then referred to the GB / T 2423.3-2016 "Environmental testing Part 2: Test method Test Cab: Constant humidity test" standard. The samples were placed in a TH-80 constant temperature and humidity chamber at a temperature of 45°C and a humidity of 80% RH for 6 months. The samples were then taken out and the negative ion release was tested using the above-mentioned negative ion release test method, which is the negative ion release after 6 months of continuous use.

[0076] Summer thermal resistance (test conditions: 28°C, 65% RH) and winter thermal resistance (test conditions: 20°C, 50% RH): The wool negative ion quilt core sheets obtained in each example were used as samples, and then the thermal resistance of the samples in summer and winter were tested using an equivalent hot plate apparatus according to ISO 11092:2014 "Textiles - Determination of thermal and moisture resistance under steady-state conditions of physiological effects".

[0077] Negative ion release attenuation rate after 10 washes: The wool negative ion quilt core flakes obtained in each embodiment were used as samples, and the negative ion release of the samples was first tested by the above-mentioned negative ion release test method. Then, the samples were washed 10 times with reference to the GB / T8629-2017 "Household Washing and Drying Procedure for Textile Testing" standard. The washing machine model was a standard A washing machine, the washing program was 4G, the drying program was A, the load was 3 kg (consisting of 2 kg of sample and 1 kg of Class III laundry), and the detergent was standard detergent 4. The negative ion release of the washed samples was then tested by the above-mentioned negative ion release test method. Finally, the negative ion release attenuation rate after 10 washes was calculated based on the obtained negative ion release. The calculation formula is: Attenuation rate = (initial release amount – negative ion release amount after 10 washes) / initial release amount × 100%;

[0078] Abrasion resistance: The wool negative ion quilt core flakes obtained in each example were used as samples, and then the abrasion resistance of the samples was measured using a Martindale abrasion and pilling tester (model Martindale 103) in accordance with GB / T21196.2-2025 "Martindale Abrasion Resistance Test for Textiles".

[0079] Surface fuzzing grade: The wool negative ion quilt core flakes obtained in each example were used as samples, and then the samples were measured with reference to the standard GB / T 4802.1-2020 "Determination of fuzzing and pilling properties of textile fabrics - Part 1: Circular locus method".

[0080] Air permeability: The upper fabric layer, non-woven fabric layer, wool negative ion core layer, and lower fabric layer in each embodiment were used as samples, and then the air permeability of the samples was measured using a YG461E digital air permeability meter in accordance with GB / T 5453-1997 "Determination of Air Permeability of Textile Fabrics"; the test pressure drop was 100 Pa and the test area was 20 cm 2 .

[0081] Example 1

[0082] A wool negative ion quilt core flake, such as Figures 1 to 5 As shown, it consists of an upper fabric layer 1, a non-woven fabric layer 2, a wool negative ion core layer 3 and a lower fabric layer 4;

[0083] The upper fabric layer 1, the non-woven fabric layer 2 and the lower fabric layer 4 are compounded in sequence from top to bottom, and the wool negative ion core layer 3 is located in the non-woven fabric layer 2;

[0084] like Figure 2As shown, the upper fabric layer 1 is divided into left, middle and right three areas, the density of the middle area 1.1 of the upper fabric layer is 80, the density of the two side areas is 32, the air permeability of the middle area is 80 mm / s, and the air permeability of the left and right areas is 100 mm / s;

[0085] The area ratio of the middle area 1.1 of the upper fabric layer to the total area of the left and right areas is 2:1;

[0086] The thickness of the upper fabric layer 1 is 0.3mmmm, and the material is pure cotton;

[0087] As shown, Figure 3 The air permeability of the non-woven fabric layer 2 is 650 mm / s, the material is SMS spun-bond non-woven fabric, and the thickness of the non-woven fabric in the non-woven fabric layer 2 is 0.5mm;

[0088] As shown, Figure 4 The wool anion core layer 3 is composed of wool fibers (specification 16-24μm superfine sheep wool) and anion fibers (tourmaline fibers, fiber manufacturer Changshu Meijie Chemical Fiber Co., Ltd.), the anion fibers are wrapped by the wool fibers, the mass fraction of the wool fibers is 20%, and the mass fraction of the anion fibers is 80%; The thickness of the wool anion core layer 3 is 15mm;

[0089] As shown, Figure 5 The lower fabric layer 4 is divided into left, middle and right three areas, the density of the middle area 4.1 of the lower fabric layer is 28, the density of the two side areas is 60, the air permeability of the middle area is 350 mm / s, and the air permeability of the left and right areas is 80 mm / s;

[0090] The area ratio of the middle area 4.1 of the lower fabric layer to the total area of the left and right areas is 2:1;

[0091] The thickness of the lower fabric layer 4 is 0.5mm, and the material is polyester cotton blend (polyester cotton mass ratio 65 / 35).

[0092] The anion release amount of the wool anion core batting is 1500ions / cm³, the anion release amount after continuous use for 6 months is 850ions / cm³, the summer thermal resistance is 0.7clo, and the winter thermal resistance is 1.0clo;

[0093] The anion release amount attenuation rate of the wool anion core batting after washing 10 times is 15%, the wear resistance is 22000 times, and the surface fuzz grade is 4.

[0094] Example 2

[0095] A wool anion core batting is composed of an upper fabric layer, a non-woven fabric layer, a wool anion core layer and a lower fabric layer;

[0096] The upper fabric layer, the non-woven fabric layer and the lower fabric layer are compounded in sequence from top to bottom, and the wool negative ion core layer is located in the non-woven fabric layer;

[0097] The upper fabric layer is divided into three areas: left, middle, and right. The density of the middle area is 115, and the density of the two side areas is 38. The air permeability of the middle area is 60mm / s, and the air permeability of the left and right areas is 200mm / s.

[0098] The ratio of the middle area of ​​the upper fabric layer to the total area of ​​the left and right areas is 2.4:1;

[0099] The thickness of the upper fabric layer is 0.7mm and the material is pure cotton;

[0100] The air permeability of the non-woven fabric layer is 800 mm / s, the material is SMS spunbond non-woven fabric, and the thickness of the non-woven fabric in the non-woven fabric layer is 0.3 mm;

[0101] The wool negative ion core layer is composed of wool fiber (16-24μm ultra-fine wool) and negative ion fiber (tourmaline fiber, the fiber manufacturer is Changshu Meijie Chemical Fiber Co., Ltd.). The negative ion fiber is wrapped in wool fiber, with the mass fraction of wool fiber being 50% and the mass fraction of negative ion fiber being 50%. The thickness of the wool negative ion core layer is 30mm.

[0102] The lower fabric layer is divided into three areas: left, middle, and right. The density of the middle area is 20, and the density of the two side areas is 80. The air permeability of the middle area is 400mm / s, and the air permeability of the left and right areas is 60mm / s.

[0103] The ratio of the middle area of ​​the lower fabric layer to the total area of ​​the left and right areas is 2.5:1;

[0104] The thickness of the lower fabric layer is 1.1mm, and the material is polyester-cotton blend (polyester-cotton mass ratio 65 / 35).

[0105] The negative ion release of the wool negative ion quilt core is 2500ions / cm³. After 6 months of continuous use, the negative ion release is 1100ions / cm³. The thermal resistance in summer is 0.9clo and the thermal resistance in winter is 1.2clo.

[0106] The negative ion release attenuation rate of the wool negative ion quilt core sheet after washing 10 times is 12%, the wear resistance is 25,000 times, and the surface fuzzing level is level 4.

[0107] Example 3

[0108] A wool negative ion quilt core sheet, consisting of an upper fabric layer, a non-woven fabric layer, a wool negative ion core layer and a lower fabric layer;

[0109] The upper fabric layer, the non-woven fabric layer and the lower fabric layer are compounded in sequence from top to bottom, and the wool negative ion core layer is located in the non-woven fabric layer;

[0110] The upper fabric layer is divided into three areas: left, middle, and right. The density of the middle area is 150, and the density of the two side areas is 25. The air permeability of the middle area is 95mm / s, and the air permeability of the left and right areas is 300mm / s.

[0111] The ratio of the middle area of ​​the upper fabric layer to the total area of ​​the left and right areas is 3:1;

[0112] The thickness of the upper fabric layer is 1.0mm and the material is pure cotton;

[0113] The air permeability of the non-woven fabric layer is 550 mm / s, the material is SMS spunbond non-woven fabric, and the thickness of the non-woven fabric in the non-woven fabric layer is 0.8 mm;

[0114] The wool negative ion core layer is composed of wool fiber (16-24μm ultra-fine wool) and negative ion fiber (tourmaline fiber, the fiber manufacturer is Changshu Meijie Chemical Fiber Co., Ltd.). The negative ion fiber is wrapped in wool fiber, with the mass fraction of wool fiber being 80% and the mass fraction of negative ion fiber being 20%. The thickness of the wool negative ion core layer is 50mm.

[0115] The lower fabric layer is divided into three areas: left, middle, and right. The density of the middle area is 25, and the density of the two side areas is 50. The air permeability of the middle area is 500mm / s, and the air permeability of the left and right areas is 90mm / s.

[0116] The ratio of the middle area of ​​the lower fabric layer to the total area of ​​the left and right areas is 3:1;

[0117] The thickness of the lower fabric layer is 2.0 mm and the material is polyester-cotton blend (polyester-cotton mass ratio 65 / 35).

[0118] The negative ion release of the wool negative ion quilt core is 3500ions / cm³. After 6 months of continuous use, the negative ion release is 1800ions / cm³. The thermal resistance in summer is 1.2clo and the thermal resistance in winter is 1.5clo.

[0119] The negative ion release attenuation rate of the wool negative ion quilt core sheet after washing 10 times is 18%, the wear resistance is 20,000 times, and the surface fuzzing level is level 4.

[0120] Example 4

[0121] A wool negative ion quilt core sheet, consisting of an upper fabric layer, a non-woven fabric layer, a wool negative ion core layer and a lower fabric layer;

[0122] The upper fabric layer, the non-woven fabric layer and the lower fabric layer are compounded in sequence from top to bottom, and the wool negative ion core layer is located in the non-woven fabric layer;

[0123] The upper fabric layer is divided into three areas: left, middle, and right. The density of the middle area is 90, and the density of the two side areas is 35. The air permeability of the middle area is 70mm / s, and the air permeability of the left and right areas is 150mm / s.

[0124] The ratio of the middle area of ​​the upper fabric layer to the total area of ​​the left and right areas is 2.2:1;

[0125] The thickness of the upper fabric layer is 0.5mm and the material is pure cotton;

[0126] The air permeability of the non-woven fabric layer is 700 mm / s, the material is SMS spunbond non-woven fabric, and the thickness of the non-woven fabric in the non-woven fabric layer is 0.4 mm;

[0127] The wool negative ion core layer is composed of wool fiber (16-24μm ultra-fine sheep wool) and negative ion fiber (tourmaline fiber, the fiber manufacturer is Changshu Meijie Chemical Fiber Co., Ltd.). The negative ion fiber is wrapped in wool fiber, with the mass fraction of wool fiber being 30% and the mass fraction of negative ion fiber being 70%. The thickness of the wool negative ion core layer is 20mm.

[0128] The lower fabric layer is divided into three areas: left, middle, and right. The density of the middle area is 18, and the density of the two side areas is 70. The air permeability of the middle area is 380mm / s, and the air permeability of the left and right areas is 70mm / s.

[0129] The ratio of the middle area of ​​the lower fabric layer to the total area of ​​the left and right areas is 2.3:1;

[0130] The thickness of the lower fabric layer is 0.8mm and the material is polyester-cotton blend (polyester-cotton mass ratio 65 / 35).

[0131] The negative ion release of the wool negative ion quilt core is 2200ions / cm³, and the negative ion release after 6 months of continuous use is 950ions / cm³. The thermal resistance in summer is 0.6clo and the thermal resistance in winter is 0.9clo.

[0132] The negative ion release attenuation rate of the wool negative ion quilt core sheet after washing 10 times is 10%, the wear resistance is 28,000 times, and the surface fuzzing level is level 4.

[0133] Example 5

[0134] A wool negative ion quilt core sheet, consisting of an upper fabric layer, a non-woven fabric layer, a wool negative ion core layer and a lower fabric layer;

[0135] The upper fabric layer, the non-woven fabric layer and the lower fabric layer are compounded in sequence from top to bottom, and the wool negative ion core layer is located in the non-woven fabric layer;

[0136] The upper fabric layer is divided into three areas: left, middle, and right. The density of the middle area is 130, and the density of the two side areas is 30. The air permeability of the middle area is 50mm / s, and the air permeability of the left and right areas is 250mm / s.

[0137] The ratio of the middle area of ​​the upper fabric layer to the total area of ​​the left and right areas is 2.8:1;

[0138] The thickness of the upper fabric layer is 0.8mm and the material is pure cotton;

[0139] The air permeability of the non-woven fabric layer is 600 mm / s, the material is SMS spunbond non-woven fabric, and the thickness of the non-woven fabric in the non-woven fabric layer is 0.7 mm;

[0140] The wool negative ion core layer is composed of wool fiber (16-24μm ultra-fine sheep wool) and negative ion fiber (tourmaline fiber, the fiber manufacturer is Changshu Meijie Chemical Fiber Co., Ltd.). The negative ion fiber is wrapped in wool fiber, with the mass fraction of wool fiber being 70% and the mass fraction of negative ion fiber being 30%. The thickness of the wool negative ion core layer is 40mm.

[0141] The lower fabric layer is divided into three areas: left, middle, and right. The density of the middle area is 22, and the density of the two side areas is 65. The air permeability of the middle area is 450mm / s, and the air permeability of the left and right areas is 50mm / s.

[0142] The ratio of the middle area of ​​the lower fabric layer to the total area of ​​the left and right areas is 2.7:1;

[0143] The thickness of the lower fabric layer is 1.5mm, and the material is polyester-cotton blend (polyester-cotton mass ratio 65 / 35).

[0144] The negative ion release of the wool negative ion quilt core is 3200ions / cm³. After 6 months of continuous use, the negative ion release is 1400ions / cm³. The thermal resistance in summer is 1.0clo and the thermal resistance in winter is 1.3clo.

[0145] The negative ion release attenuation rate of the wool negative ion quilt core sheet after washing 10 times is 8%, the wear resistance is 23,000 times, and the surface fuzzing level is level 4.

Claims

1. A wool negative ion quilt core sheet, characterized by: It includes an upper fabric layer, a non-woven fabric layer, a wool negative ion core layer and a lower fabric layer; The upper fabric layer, the non-woven fabric layer and the lower fabric layer are compounded in sequence from top to bottom, and the wool negative ion core layer is located in the non-woven fabric layer; The wool negative ion core layer is composed of wool fibers and negative ion fibers, and the negative ion fibers are wrapped by wool fibers; The upper fabric layer is divided into three areas: left, middle, and right. The density of the middle area is higher than that of the left and right areas. The air permeability of the middle area is below 100mm / s, while the air permeability of the left and right areas is 100-300mm / s. The lower fabric layer is divided into three areas: left, middle and right. The density of the middle area is lower than that of the left and right areas. The air permeability of the middle area is 350~500mm / s, and the air permeability of the left and right areas is less than 100mm / s.

2. The wool negative ion quilt core sheet according to claim 1, characterized in that: The mass fraction of wool fibers in the wool negative ion core layer is 20~80%.

3. The wool negative ion quilt core sheet according to claim 1, characterized in that: The ratio of the middle area of ​​the upper fabric layer to the total area of ​​the left and right areas is 2 to 3:1; The ratio of the middle area of ​​the lower fabric layer to the total area of ​​the left and right areas is 2:1~3:

1.

4. The wool negative ion quilt core sheet according to claim 1, characterized in that: The density of the middle area of ​​the upper fabric layer is 80-150 count, and the density of the areas on both sides is less than 40 count; The density of the middle area of ​​the lower fabric layer is less than 30 counts, and the density of the areas on both sides is more than 50 counts.

5. The wool negative ion quilt core sheet according to claim 1, characterized in that: The air permeability of the non-woven fabric layer is greater than 500 mm / s.

6. The wool negative ion quilt core sheet according to claim 1, characterized in that: The thickness of the upper fabric layer is 0.3~1.0mm.

7. The wool negative ion quilt core sheet according to claim 6, characterized in that: The thickness of the non-woven fabric in the non-woven fabric layer is 0.3 to 0.8 mm.

8. The wool negative ion quilt core sheet according to claim 7, characterized in that: The thickness of the wool negative ion core layer is 15~50mm.

9. The wool negative ion quilt core sheet according to claim 8, characterized in that: The thickness of the lower fabric layer is 0.5~2.0mm.

10. The wool negative ion quilt core sheet according to claim 1, characterized in that: The thermal resistance of the wool negative ion quilt core is 0.9~1.5clo in winter and 0.6~1.2clo in summer. The test conditions for thermal resistance in winter are 20℃ and 50%RH, and the test conditions for thermal resistance in summer are 28℃ and 65%RH. The negative ion release of the wool negative ion quilt core flakes decays by less than 20% after 10 washes; the abrasion resistance measured by the Martindale method is ≥20,000 times, and the surface fuzzing level is level 4 when rubbed more than 20,000 times.

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