Wool negative ion core batt

Abstract

The present application belongs to the functional core technology field, disclose a kind of wool anion quilt core piece, including upper layer fabric layer, non-woven layer, wool anion core layer and lower layer fabric layer;Upper layer fabric layer, non-woven layer and lower layer fabric layer are sequentially composite from top to bottom, wool anion core layer is located in non-woven layer;Wool anion core layer is composed of wool fiber and anion fiber, and anion fiber is wrapped by wool fiber;Upper layer fabric layer is divided into left, middle, right three areas, and the density of middle area is higher than the density of left and right areas;Lower layer fabric layer is divided into left, middle, right three areas, and the density of middle area is lower than the density of left and right areas.The wool anion quilt core piece of the present application combines the natural hygroscopicity of wool and the characteristics of anion fiber, effectively promotes the excitation and circulation of negative oxygen ions, and helps to create a healthy and comfortable sleep environment.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of functional quilt cores, and relates to a wool anion quilt core batt. BACKGROUND

[0002] In recent years, with the increasing emphasis on sleep health, the development of functional quilt cores has gradually transitioned from “simple warmth” to a new stage of “health empowerment”. From the perspective of technical evolution, the first stage of products (such as cotton quilts and chemical fiber quilts) mainly solve the basic warmth demand; the second stage realizes dynamic temperature regulation through phase change materials and far infrared fibers; and the current has entered the third generation of development stage with health function as the core.

[0003] Behind this trend is the urgent demand of consumers for “healthy sleep ecosystem”. Especially when choosing bedding, health functions are given priority, among which antibacterial and anti-mite, anion purification, and low allergenicity are the three most concerned health elements.

[0004] Negative oxygen ions have significant functions such as antibacterial, sterilization, deodorization, and air purification, which are of great significance to human health. However, traditional wool quilt cores have obvious limitations. They do not have the function of generating and releasing negative ions, so they cannot bring these additional health benefits to users.

[0005] The anion textiles in the prior art do not fully utilize the advantages of wool in actual application. Neither the moisture absorption nor the warmth of wool is fully utilized, and the effective excitation and circulation of negative ions are not considered in the structural design. For example, although water-washable anion wool fiber home textile products can be prepared in the document (Washable anion wool fiber home textile product preparation and performance testing [J]. Textile Testing and Standards, 2019, 5(5):5. DOI: CNKI: SUN: FZCB.0.2019-05-007.), there are still the following shortcomings: 1) Although the study improves the negative ion release amount by compounding Iorina powder and Kayacera finishing agent, it does not deeply explore the synergistic mechanism of the moisture absorption, warmth and negative ion excitation of wool fibers, but only focuses on the release amount index, ignoring the integrated use of the natural properties of wool; 2) The process design relies on the physical attachment of external finishing agents (such as Iorina powder), which will affect the softness and air permeability of wool fibers, and the correlation between the durability of negative ion release and the microstructure of wool fibers is not explained. Therefore, as a whole, this technology is still in the “passive loading” mode, and the intrinsic properties of wool fibers and the function of negative ions cannot be organically integrated.

[0006] Therefore, it is of great significance to research a wool anion quilt core batt to solve the above problems. SUMMARY

[0007] The wool negative ion quilt core sheet can fully utilize the natural moisture absorption of wool and the characteristics of negative ion fibers to create a more healthy and comfortable sleep microenvironment.

[0008] To achieve the above object, the technical scheme adopted by the present application 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 sequentially compounded 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 the wool fibers.

[0012] The upper fabric layer is divided into left, middle and right areas, and the density of the middle area is higher than that of the left and right areas. The left, middle and right areas of the upper fabric layer are consistent in other parameters except the density, so that the air permeability of the middle area is low, the air permeability of the left and right areas is high, the air permeability of the middle area is below 100 mm / s, and the air permeability of the left and right areas is 100-300 mm / s. The longitudinal escape of negative ions is restricted, and the transverse moisture exchange is promoted.

[0013] The lower fabric layer is divided into left, middle and right areas, and the density of the middle area is lower than that of the left and right areas. The left, middle and right areas of the lower fabric layer are consistent in other parameters except the density, so that the air permeability of the middle area is high, the air permeability of the left and right areas is low, the air permeability of the middle area is 350-500 mm / s, and the air permeability of the left and right areas is below 100 mm / s. Thus, the trunk area (accounting for 36% of the body surface area) is preferentially dehumidified during sleep, and the extremities are kept warm.

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

[0015] (1) The upper fabric layer adopts a double-density design, with high middle density and low left and right density, to optimize the preservation of negative ions and the moisture exchange between wool and external air.

[0016] (2) The non-woven fabric layer is located below the upper fabric layer and provides good air permeability while serving as a protective layer and an isolation layer.

[0017] (3) Wool Negative Ion Core Layer: Utilizing the high moisture absorption of wool (water content of 8-40 wt%) and the excitation characteristics of negative ion fibers, negative oxygen ions are generated, which have the functions of antibacterial, sterilization, deodorization, and air purification, helping to maintain human health; in addition, high moisture absorption means that wool can absorb and release moisture, providing a comfortable experience for the wearer, especially in dynamically changing environments, while also allowing wool fibers to perfectly absorb and retain the sweat produced by the human body during sleep, 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, with the following detailed preparation steps:

[0020] 1. Fiber pretreatment and precise proportioning;

[0021] The preparation of the wool negative ion core layer begins with the selection and pretreatment of the fibers. 16-24 μm wool and negative ion fibers (containing tourmaline in polyester, negative ion release amount ≥4500 ions / cm 3 ) are selected. The wool is treated with a 4% sodium carbonate solution at 45°C for degreasing, removing natural lipids to a residual rate of <0.5% to ensure fiber hydrophilicity; the negative ion fibers are treated with plasma activation at 30-60°C (500W, Ar / O2 atmosphere) to form active groups on the surface to enhance the charge capture ability. A three-dimensional dynamic proportioning system (wool 60% + negative ion fibers 40%) is used to implement composite with a 20-layer progressive laying structure, with a weight precision error of no more than ±3% per square meter.

[0022] 2. Needle punching and structure strengthening;

[0023] A "three-stage gradient needle punching" process is used to construct a three-dimensional interpenetrating network: ① Pre-needling stage (800 needles / cm², 10mm penetration depth) to form a basic entanglement layer; ② Main needle punching stage (2200 needles / cm², 15mm penetration depth) to achieve deep penetration of longitudinal fibers and establish an anti-delamination skeleton; ③ Fine needle punching stage (1200 needles / cm², 8mm penetration depth) to complete the densification of the surface layer, making the material's bursting strength reach 350N or more. The whole process is operated in an environment of 35-40°C and 65% RH to eliminate static interference.

[0024] The above needle punching process can form a stable structure by mechanically entangling negative ion fibers and wool fibers, with no risk of peeling in washing.

[0025] The preparation steps of the above wool negative ion core batt 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] The non-woven fabric layer of the wool negative ion core wadding piece has a thickness of 0.3-0.8 mm, and is relatively thin to maintain lightness and high air permeability.

[0041] The wool negative ion core layer of the wool negative ion core wadding piece has a thickness of 15-50 mm, and the thickness of the core layer is crucial for warmth and moisture absorption.

[0042] The lower fabric layer of the wool negative ion core wadding piece has a thickness of 0.5-2.0 mm. The lower fabric layer is similar to the upper fabric layer, but the density design is opposite, that is, the middle is low in density, and the two sides are high in density. The lower fabric layer directly contacting the skin can be required to be softer, and the thickness is close to that of the upper layer, that is, 0.3-2.0 mm.

[0043] The wool negative ion core wadding piece has a winter thermal resistance of 0.9-1.5 clo and a summer thermal resistance of 0.6-1.2 clo. The test conditions of the winter thermal resistance are 20 DEG C and 50% RH, and the test conditions of the summer thermal resistance are 28 DEG C and 65% RH. It is shown that the wool negative ion core wadding piece has excellent thermal comfort. The thermal resistance can be adjusted by changing the thickness of the wool negative ion core layer.

[0044] The wool negative ion core wadding piece has an anion release amount attenuation of less than 20% after being washed 10 times. The wear resistance measured by the Martindale method is greater than or equal to 20,000 times, and the surface fuzzing grade is 4 when the surface is rubbed more than 20,000 times.

[0045] Invention principle:

[0046] The wool negative ion core wadding piece structure is scientifically designed by using multiple layers of materials. When the human body covers the structure wadding piece, the excitation and circulation of negative oxygen ions can be effectively promoted (such as Figure 6 ). The 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 is designed with double density, the middle is high in density to limit the escape of negative oxygen ions, and the two sides are low in density to ensure the exchange of moisture between wool and external air. The non-woven fabric layer has good air permeability and serves as a protection and isolation layer. In the wool negative ion core layer, wool fibers are combined with negative ion fibers. The high moisture absorption 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 excited, and water is further ionized to generate negative oxygen ions. The lower fabric layer is designed with double density, and the middle is low in density to promote the return of human sweat (moisture) and negative oxygen ions to the environment of the garment. This structure design ensures the efficient excitation and circulation of negative oxygen ions, and creates a healthy and comfortable sleeping environment for the user.

[0047] The synergistic effect between the negative ion fibers and the wool fibers in the present application 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] Advantages:

[0061] (1) The wool negative ion quilt core of the present application, wherein the wool negative ion core layer utilizes the high moisture absorption 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, sterilization, deodorization and air purification, etc., the health benefits can be delivered into the quilt environment, which can directly act on the human body and be beneficial to human health, and can provide a suitable sleep environment in terms of temperature and humidity. The generated negative oxygen ions help improve sleep quality.

[0062] (2) The present application sets the density of the middle region of the upper fabric layer to be higher than that of the left and right regions, which can optimize the preservation of negative ions and the moisture exchange between wool and external air. By setting the density of the middle region of the lower fabric layer to be lower than that of the left and right regions, the release and circulation of negative oxygen ions can be promoted.

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

[0064] Figure 1 is a structural diagram of the wool negative ion quilt core of the present application;

[0065] Figure 2 is a structural diagram of the upper fabric layer of the present application;

[0066] Figure 3 is a structural diagram of the non-woven fabric layer of the present application;

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

[0068] Figure 5 is a structural diagram of the lower fabric layer of the present application;

[0069] Figure 6 is a schematic diagram of the principle of effectively promoting the excitation and circulation of negative ions when the wool negative ion quilt core of the present application covers the human body;

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

[0071] The application will be further described with reference to the following specific embodiments. It should be understood that these embodiments are intended to illustrate the application and not to limit the scope of the application. Furthermore, it should be understood that various modifications and changes can be made to the application by those skilled in the art upon reading the contents of this specification, which are intended to be within the scope of the application.

[0072] To ensure the performance of the substances used in the embodiments, the manufacturers and brands of some substances are specified. However, other products of the same manufacturers and brands that meet the requirements of the application are also feasible.

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

[0074] Negative ion release amount: The wool negative ion core batts obtained in each embodiment were used as samples, and then the negative ion release amount of the samples was determined by using a COM-3200PRO II negative ion tester under the conditions of a temperature of 23°C and a humidity of 50% RH according to the standard GB / T 30128-2013 “Textiles-Determination and Evaluation of Negative Ion Generation”. The sample size was 20 cm x 20 cm and without folding.

[0075] Negative ion release amount after 6 months of continuous use: The wool negative ion core batts obtained in each embodiment were used as samples, and then 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 according to the standard GB / T 2423.3-2016 “Environmental Testing-Part 2: Test Methods-Test Cab: Constant Humidity Chamber Test”. Then the negative ion release amount of the samples was determined by using the above-mentioned test method for the negative ion release amount, which was the negative ion release amount 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 core batts obtained in each embodiment were used as samples, and then the thermal resistance of the samples in summer and winter was determined by using an equivalent heat plate according to the standard ISO 11092:2014 “Textiles-Physiological Effects- Measurement of Thermal and Humid Resistances Using the Sweat Button”.

[0077] Attenuation rate of anion release amount after 10 times of water washing: the wool anion core piece obtained in each example was taken as a sample, the anion release amount of the sample was tested by the above-mentioned test method of anion release amount, then the sample was washed 10 times according to GB / T 8629-2017 'Textiles - Household washing and drying procedures' standard, wherein the washing machine type was A type standard washing machine, the washing program was 4G, the drying program was A, the load was 3kg (composed of 2kg sample and 1kg III type accompanying washing), the detergent was standard detergent 4, then the anion release amount of the sample after water washing was tested by the above-mentioned test method of anion release amount, finally the attenuation rate of anion release amount after 10 times of water washing was calculated according to the obtained anion release amount, and the calculation formula was: attenuation rate = (initial release amount - anion release amount after 10 times of water washing) / initial release amount x 100%;

[0078] Wear resistance: the wool anion core piece obtained in each example was taken as a sample, then the wear resistance of the sample was determined by using a Martindale abrasion and pilling tester (model Martindale 103) according to GB / T 21196.2-2025 'Textiles - Martindale method for abrasion resistance testing'.

[0079] Surface pilling grade: the wool anion core piece obtained in each example was taken as a sample, then the sample was determined according to GB / T 4802.1-2020 'Textiles - Determination of the surface pile and pilling behaviour of fabrics - Part 1: circular track method'.

[0080] Air permeability: the upper fabric layer, non-woven fabric layer, wool anion core layer and lower fabric layer in each example were taken as samples, then the air permeability of the samples was determined by using a YG461E digital air permeability tester according to GB / T 5453-1997 'Textiles - Determination of the air permeability of fabrics'; wherein the test pressure drop was 100Pa, the test area was 20cm 2 .

[0081] Example 1

[0082] A wool anion core piece, as shown in Figures 1-5 , is composed of an upper fabric layer 1, a non-woven fabric layer 2, a wool anion 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 sequentially compounded from top to bottom, and the wool anion core layer 3 is located in the non-woven fabric layer 2;

[0084] As shown in 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 sequentially compounded 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 left, middle and right areas, the density of the middle area is 115, the density of the two side areas is 38, the air permeability of the middle area is 60 mm / s, and the air permeability of the left and right areas is 200 mm / s;

[0098] The ratio of the area 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 0.7 mm, and the material is pure cotton;

[0100] The air permeability of the non-woven fabric layer is 800 mm / s, the material is SMS spun-bonded 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 fibers (specification 16-24 μm superfine sheep wool) and negative ion fibers (tourmaline fibers, the fiber manufacturer is Changshu Meijie Chemical Fiber Co., Ltd.), the negative ion fibers are wrapped by the wool fibers, the mass fraction of the wool fibers is 50%, and the mass fraction of the negative ion fibers is 50%; the thickness of the wool negative ion core layer is 30 mm;

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

[0103] The ratio of the area 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 1.1 mm, and the material is polyester cotton blend (polyester cotton mass ratio 65 / 35).

[0105] The negative ion release amount of the wool negative ion core batting is 2500 ions / cm³, the negative ion release amount after continuous use for 6 months is 1100 ions / cm³, the summer thermal resistance is 0.9 clo, and the winter thermal resistance is 1.2 clo;

[0106] The negative ion release amount attenuation rate of the wool negative ion core batting after washing 10 times is 12%, the wear resistance is 25000 times, and the surface fuzz grade is 4.

[0107] Example 3

[0108] A wool negative ion core batting is composed 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 sequentially compounded 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 left, middle and right areas, the density of the middle area is 150, the density of the two side areas is 25, the air permeability of the middle area is 95 mm / s, and the air permeability of the left and right areas is 300 mm / s;

[0111] The ratio of the area 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 1.0 mm, and the material is pure cotton;

[0113] The air permeability of the non-woven fabric layer is 550 mm / s, the material is SMS spun-bonded 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 fibers (specification 16-24 μm superfine sheep wool) and negative ion fibers (tourmaline fibers, fiber manufacturer Changshu Meijie Chemical Fiber Co., Ltd.), the negative ion fibers are wrapped by the wool fibers, the mass fraction of the wool fibers is 80%, and the mass fraction of the negative ion fibers is 20%; the thickness of the wool negative ion core layer is 50 mm;

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

[0116] The ratio of the area 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 amount of the wool negative ion quilted piece is 3500 ions / cm³, the negative ion release amount after continuous use for 6 months is 1800 ions / cm³, the summer thermal resistance is 1.2 clo, and the winter thermal resistance is 1.5 clo;

[0119] The negative ion release amount attenuation rate of the wool negative ion quilted piece after washing 10 times is 18%, the wear resistance is 20,000 times, and the surface fuzzing grade is 4.

[0120] Example 4

[0121] A wool negative ion quilted piece is composed 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 sequentially compounded 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 left, middle and right areas, the density of the middle area is 90, the density of the two side areas is 35, the air permeability of the middle area is 70 mm / s, and the air permeability of the left and right areas is 150 mm / s;

[0124] The ratio of the area 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 0.5 mm, and the material is pure cotton;

[0126] The air permeability of the non-woven fabric layer is 700 mm / s, the material is SMS spun-bonded 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 fibers (specification 16-24 μm superfine sheep wool) and negative ion fibers (tourmaline fibers, fiber manufacturer Changshu Meijie Chemical Fiber Co., Ltd.), the negative ion fibers are wrapped by the wool fibers, the mass fraction of the wool fibers is 30%, and the mass fraction of the negative ion fibers is 70%; the thickness of the wool negative ion core layer is 20 mm;

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

[0129] The ratio of the area 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 0.8 mm, and the material is polyester cotton blend (polyester cotton mass ratio 65 / 35).

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

[0132] The negative ion release amount attenuation rate of the wool negative ion core batting after washing 10 times is 10%, the wear resistance is 28000 times, and the surface fuzz grade is 4.

[0133] Example 5

[0134] A wool negative ion core batting is composed 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 sequentially compounded 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 left, middle and right areas, the density of the middle area is 130, the density of the two side areas is 30, the air permeability of the middle area is 50 mm / s, and the air permeability of the left and right areas is 250 mm / s;

[0137] The ratio of the area 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 0.8 mm, and the material is pure cotton;

[0139] The air permeability of the non-woven fabric layer is 600 mm / s, the material is SMS spun-bonded 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 fibers (specification 16-24 μm superfine sheep wool) and negative ion fibers (tourmaline fibers, fiber manufacturer Changshu Meijie Chemical Fiber Co., Ltd.), the negative ion fibers are wrapped by the wool fibers, the mass fraction of the wool fibers is 70%, and the mass fraction of the negative ion fibers is 30%; the thickness of the wool negative ion core layer is 40 mm;

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

[0142] The ratio of the area 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 1.5 mm, and the material is polyester cotton blend (polyester cotton mass ratio 65 / 35).

[0144] The negative ion release amount of the wool negative ion core batting is 3200 ions / cm³, the negative ion release amount after continuous use for 6 months is 1400 ions / cm³, the summer thermal resistance is 1.0 clo, and the winter thermal resistance is 1.3 clo;

[0145] The negative ion release amount attenuation rate of the wool negative ion core batting after washing 10 times is 8%, the wear resistance is 23000 times, and the surface fuzz grade is 4.

Claims

1. A wool negative ion comforter wadding, characterized in that: 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, non-woven fabric layer and lower fabric layer are composited 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, with the negative ion fibers wrapped in 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 less than 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, while the air permeability of the left and right areas is less than 100mm / s.

2. The wool negative ion quilting wadding 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 quilting wadding according to claim 1, characterized in that, 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; 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 to 3:

1.

4. The wool negative ion quilting wadding 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 two side areas is below 40 count. The density of the middle area of ​​the lower fabric layer is below 30, while the density of the two side areas is above 50.

5. The wool negative ion quilting wadding according to claim 1, characterized in that, The air permeability of the non-woven fabric layer is over 500 mm / s.

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

7. A wool negative ion quilting wadding according to claim 6, characterized in that, The thickness of the nonwoven fabric in the nonwoven layer is 0.3~0.8mm.

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

9. A wool negative ion quilting wadding according to claim 8, characterized in that, The thickness of the lower fabric layer is 0.5~2.0mm.

10. A wool negative ion comforter wadding according to claim 1, characterized in that, The thermal resistance of the wool negative ion quilt core sheet is 0.9~1.5clo in winter and 0.6~1.2clo in summer. The test conditions for winter thermal resistance are 20℃ and 50%RH, and the test conditions for summer thermal resistance are 28℃ and 65%RH. The negative ion release of the wool negative ion quilt core decreased by less than 20% after 10 washes; the abrasion resistance measured by the Martindale method was ≥20,000 cycles, and the surface napping grade was 4 when the friction exceeded 20,000 cycles.

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